/*
 * Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "editorlist.h"
#include "editor.h"
#include "systemconsts.h"
#include "settings.h"
#include "qsynedit/Constants.h"
#include "debugger.h"
#include "widgets/cpudialog.h"
#include "widgets/filepropertiesdialog.h"
#include "project.h"
#include "projecttemplate.h"
#include "widgets/newprojectdialog.h"
#include "platform.h"
#include "widgets/aboutdialog.h"
#include "shortcutmanager.h"
#include "colorscheme.h"
#include "thememanager.h"
#include "widgets/darkfusionstyle.h"
#include "widgets/lightfusionstyle.h"
#include "problems/problemcasevalidator.h"
#include "widgets/ojproblempropertywidget.h"
#include "iconsmanager.h"
#include "widgets/newclassdialog.h"
#include "widgets/newheaderdialog.h"
#include "vcs/gitmanager.h"
#include "vcs/gitrepository.h"
#include "vcs/gitbranchdialog.h"
#include "vcs/gitmergedialog.h"
#include "vcs/gitlogdialog.h"
#include "vcs/gitremotedialog.h"
#include "vcs/gituserconfigdialog.h"
#include "widgets/infomessagebox.h"

#include <QCloseEvent>
#include <QComboBox>
#include <QDesktopServices>
#include <QDragEnterEvent>
#include <QFileDialog>
#include <QInputDialog>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QLabel>
#include <QLineEdit>
#include <QMessageBox>
#include <QMimeData>
#include <QScreen>
#include <QTcpSocket>
#include <QTemporaryFile>
#include <QTextBlock>
#include <QTranslator>
#include <QFileIconProvider>
#include "mainwindow.h"
#include <QScrollBar>
#include <QTextDocumentFragment>

#include "settingsdialog/settingsdialog.h"
#include "compiler/compilermanager.h"
#include <QGuiApplication>
#include <QClipboard>
#include <QMessageBox>
#include <QTextCodec>
#include "cpprefacter.h"

#include "widgets/newprojectunitdialog.h"
#include "widgets/searchdialog.h"

#ifdef Q_OS_WIN
#include <windows.h>
#endif


static int findTabIndex(QTabWidget* tabWidget , QWidget* w) {
    for (int i=0;i<tabWidget->count();i++) {
        if (w==tabWidget->widget(i))
            return i;
    }
    return -1;
}

MainWindow* pMainWindow;

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent),
      ui(new Ui::MainWindow),
      mSearchDialog(nullptr),
      mQuitting(false),
      mCheckSyntaxInBack(false),
      mShouldRemoveAllSettings(false),
      mClosing(false),
      mOpenningFiles(false),
      mSystemTurnedOff(false)
{
    ui->setupUi(this);
    addActions( this->findChildren<QAction *>(QString(), Qt::FindChildrenRecursively));
    // status bar
    mFileInfoStatus=new QLabel();
    mFileEncodingStatus = new LabelWithMenu();
    mFileModeStatus = new QLabel();
    mFileInfoStatus->setStyleSheet("margin-left:10px; margin-right:10px");
    mFileEncodingStatus->setStyleSheet("margin-left:10px; margin-right:10px");
    mFileModeStatus->setStyleSheet("margin-left:10px; margin-right:10px");
    prepareTabInfosData();
    prepareTabMessagesData();
    ui->statusbar->insertPermanentWidget(0,mFileModeStatus);
    ui->statusbar->insertPermanentWidget(0,mFileEncodingStatus);
    ui->statusbar->insertPermanentWidget(0,mFileInfoStatus);
    mEditorList = new EditorList(ui->EditorTabsLeft,
                                 ui->EditorTabsRight,
                                 ui->splitterEditorPanel,
                                 ui->EditorPanel);
    connect(mEditorList, &EditorList::editorRenamed,
            this, &MainWindow::onEditorRenamed);
    connect(mEditorList, &EditorList::editorClosed,
               this, &MainWindow::onEditorClosed);
    mProject = nullptr;
    mProjectProxyModel = new ProjectModelSortFilterProxy(this);
    ui->projectView->setModel(mProjectProxyModel);
    mProjectProxyModel->setDynamicSortFilter(false);
    ui->EditorTabsRight->setVisible(false);

    mCompilerSet = new QComboBox();
    mCompilerSet->setMinimumWidth(200);
    mCompilerSet->setSizeAdjustPolicy(QComboBox::AdjustToContents);
    ui->toolbarCompilerSet->insertWidget(ui->actionCompiler_Options, mCompilerSet);
    ui->toolbarCompilerSet->insertSeparator(ui->actionCompiler_Options);
    connect(mCompilerSet,QOverload<int>::of(&QComboBox::currentIndexChanged),
            this, &MainWindow::onCompilerSetChanged);
    //updateCompilerSet();

    mCompilerManager = new CompilerManager(this);
    mDebugger = new Debugger(this);

    ui->tblBreakpoints->setModel(mDebugger->breakpointModel());
    ui->tblStackTrace->setModel(mDebugger->backtraceModel());
    ui->watchView->setModel(mDebugger->watchModel());
    ui->tblMemoryView->setModel(mDebugger->memoryModel());

    ui->tblMemoryView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);


    try {
        mDebugger->breakpointModel()->load(includeTrailingPathDelimiter(pSettings->dirs().config())
                                           +DEV_BREAKPOINTS_FILE);
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                             tr("Error"),
                             e.reason());
    }
    try {
        mDebugger->watchModel()->load(includeTrailingPathDelimiter(pSettings->dirs().config())
                                       +DEV_WATCH_FILE);
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                             tr("Error"),
                             e.reason());
    }


//    ui->actionIndent->setShortcut(Qt::Key_Tab);
//    ui->actionUnIndent->setShortcut(Qt::Key_Tab | Qt::ShiftModifier);

    mMenuNew = new QMenu();
    mMenuNew->setTitle(tr("New"));
    mMenuNew->addAction(ui->actionNew);
    mMenuNew->addAction(ui->actionNew_Project);
    mMenuNew->addSeparator();
    mMenuNew->addAction(ui->actionNew_Class);
    mMenuNew->addAction(ui->actionNew_Header);

    ui->menuFile->insertMenu(ui->actionOpen,mMenuNew);


    mMenuExport = new QMenu(tr("Export"));
    mMenuExport->addAction(ui->actionExport_As_RTF);
    mMenuExport->addAction(ui->actionExport_As_HTML);
    ui->menuFile->insertMenu(ui->actionPrint,mMenuExport);

    buildEncodingMenu();

    mMenuRecentProjects = new QMenu();
    mMenuRecentProjects->setTitle(tr("Recent Projects"));
    ui->menuFile->insertMenu(ui->actionExit, mMenuRecentProjects);

    mMenuRecentFiles = new QMenu();
    mMenuRecentFiles->setTitle(tr("Recent Files"));
    ui->menuFile->insertMenu(ui->actionExit, mMenuRecentFiles);
    ui->menuFile->insertSeparator(ui->actionExit);
    rebuildOpenedFileHisotryMenu();

    mMenuInsertCodeSnippet = new QMenu();
    mMenuInsertCodeSnippet->setTitle(tr("Insert Snippet"));
    ui->menuCode->insertMenu(ui->actionReformat_Code,mMenuInsertCodeSnippet);
    ui->menuCode->insertSeparator(ui->actionReformat_Code);
    connect(mMenuInsertCodeSnippet,&QMenu::aboutToShow,
            this, &MainWindow::onShowInsertCodeSnippetMenu);

    mCPUDialog = nullptr;

//    applySettings();
//    applyUISettings();
//    updateProjectView();
//    updateEditorActions();
//    updateCaretActions();

    connect(ui->debugConsole,&QConsole::commandInput,this,&MainWindow::onDebugCommandInput);
    connect(ui->cbEvaluate->lineEdit(), &QLineEdit::returnPressed,
            this, &MainWindow::onDebugEvaluateInput);
    connect(ui->cbMemoryAddress->lineEdit(), &QLineEdit::returnPressed,
            this, &MainWindow::onDebugMemoryAddressInput);

    mTodoParser = std::make_shared<TodoParser>();
    mSymbolUsageManager = std::make_shared<SymbolUsageManager>();
    try {
        mSymbolUsageManager->load();
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                         tr("Error"),
                         e.reason());
    }

    mCodeSnippetManager = std::make_shared<CodeSnippetsManager>();
    try {
        mCodeSnippetManager->load();
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                             tr("Error"),
                             e.reason());
    }
    mToolsManager = std::make_shared<ToolsManager>();
    try {
        mToolsManager->load();
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                             tr("Error"),
                             e.reason());
    }
    mBookmarkModel = std::make_shared<BookmarkModel>();
    try {
        mBookmarkModel->load(includeTrailingPathDelimiter(pSettings->dirs().config())
                         +DEV_BOOKMARK_FILE);
    } catch (FileError &e) {
        QMessageBox::warning(nullptr,
                             tr("Error"),
                             e.reason());
    }
    ui->tableBookmark->setModel(mBookmarkModel.get());
    mSearchResultTreeModel = std::make_shared<SearchResultTreeModel>(&mSearchResultModel);
    mSearchResultListModel = std::make_shared<SearchResultListModel>(&mSearchResultModel);
    mSearchViewDelegate = std::make_shared<SearchResultTreeViewDelegate>(mSearchResultTreeModel);
    ui->cbSearchHistory->setModel(mSearchResultListModel.get());
    ui->searchView->setModel(mSearchResultTreeModel.get());
    ui->searchView->setItemDelegate(mSearchViewDelegate.get());
    ui->tableTODO->setModel(&mTodoModel);
    connect(mSearchResultTreeModel.get() , &QAbstractItemModel::modelReset,
            ui->searchView,&QTreeView::expandAll);
    ui->replacePanel->setVisible(false);
    ui->tabProblem->setEnabled(false);
    ui->btnRemoveProblem->setEnabled(false);
    ui->btnRemoveProblemCase->setEnabled(false);

    //problem set
    mOJProblemSetNameCounter=1;
    mOJProblemSetModel.rename(tr("Problem Set %1").arg(mOJProblemSetNameCounter));
    ui->lstProblemSet->setModel(&mOJProblemSetModel);
    ui->tblProblemCases->setModel(&mOJProblemModel);
    connect(ui->lstProblemSet->selectionModel(),
            &QItemSelectionModel::currentRowChanged,
            this, &MainWindow::onProblemSetIndexChanged);
    connect(ui->tblProblemCases->selectionModel(),
            &QItemSelectionModel::currentRowChanged,
            this, &MainWindow::onProblemCaseIndexChanged);
    connect(&mOJProblemSetModel, &OJProblemSetModel::problemNameChanged,
            this , &MainWindow::onProblemNameChanged);
    ui->pbProblemCases->setVisible(false);
    connect(&mTcpServer,&QTcpServer::newConnection,
            this, &MainWindow::onNewProblemConnection);

    connect(&mOJProblemModel, &OJProblemModel::dataChanged,
            this, &MainWindow::updateProblemTitle);

    //files view
    ui->treeFiles->setModel(&mFileSystemModel);
    mFileSystemModel.setReadOnly(false);
    mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);

    mFileSystemModel.setNameFilters(pSystemConsts->defaultFileNameFilters());
    mFileSystemModel.setNameFilterDisables(false);
    //setFilesViewRoot(pSettings->environment().currentFolder());
    for (int i=1;i<mFileSystemModel.columnCount();i++) {
        ui->treeFiles->hideColumn(i);
    }
    connect(ui->cbFilesPath->lineEdit(),&QLineEdit::returnPressed,
            this,&MainWindow::onFilesViewPathChanged);
    connect(ui->cbFilesPath, QOverload<int>::of(&QComboBox::currentIndexChanged),
            this, &MainWindow::onFilesViewPathChanged);

    //class browser
    ui->classBrowser->setUniformRowHeights(true);
    ui->classBrowser->setModel(&mClassBrowserModel);

    connect(&mFileSystemWatcher,&QFileSystemWatcher::fileChanged,
            this, &MainWindow::onFileChanged);

    mStatementColors = std::make_shared<QHash<StatementKind, PColorSchemeItem> >();
    mCompletionPopup = std::make_shared<CodeCompletionPopup>();
    mCompletionPopup->setColors(mStatementColors);
    mHeaderCompletionPopup = std::make_shared<HeaderCompletionPopup>();
    mFunctionTip = std::make_shared<FunctionTooltipWidget>();

    mClassBrowserModel.setColors(mStatementColors);

    connect(&mAutoSaveTimer, &QTimer::timeout,
            this, &MainWindow::onAutoSaveTimeout);
    resetAutoSaveTimer();

    connect(ui->menuFile, &QMenu::aboutToShow,
            this,&MainWindow::rebuildOpenedFileHisotryMenu);

    connect(ui->menuProject, &QMenu::aboutToShow,
            this, &MainWindow::updateProjectActions);

    ui->actionEGE_Manual->setVisible(pSettings->environment().language()=="zh_CN");

    connect(ui->EditorTabsLeft, &EditorsTabWidget::middleButtonClicked,
            this, &MainWindow::on_EditorTabsLeft_tabCloseRequested);

    connect(ui->EditorTabsRight, &EditorsTabWidget::middleButtonClicked,
            this, &MainWindow::on_EditorTabsRight_tabCloseRequested);

    //git menu
    connect(ui->menuGit, &QMenu::aboutToShow,
            this, &MainWindow::updateVCSActions);
    buildContextMenus();
    updateAppTitle();
    //applySettings();
    applyUISettings();
    initDocks();
    updateProjectView();
    updateEditorActions();
    updateCaretActions();
    updateEditorColorSchemes();
    updateShortcuts();
    updateTools();
    updateEditorSettings();
}

MainWindow::~MainWindow()
{
    delete mEditorList;
    delete ui;
}

void MainWindow::updateForEncodingInfo(bool clear) {
    Editor * editor = mEditorList->getEditor();
    if (!clear && editor!=NULL) {
        if (editor->encodingOption() != editor->fileEncoding()) {
            mFileEncodingStatus->setText(
                        QString("%1(%2)")
                        .arg(QString(editor->encodingOption())
                             ,QString(editor->fileEncoding())));
        } else {
            mFileEncodingStatus->setText(
                        QString("%1")
                        .arg(QString(editor->encodingOption()))
                        );
        }
        ui->actionAuto_Detect->setChecked(editor->encodingOption() == ENCODING_AUTO_DETECT);
        ui->actionEncode_in_ANSI->setChecked(editor->encodingOption() == ENCODING_SYSTEM_DEFAULT);
        ui->actionEncode_in_UTF_8->setChecked(editor->encodingOption() == ENCODING_UTF8);
        ui->actionEncode_in_UTF_8->setChecked(editor->encodingOption() == ENCODING_UTF8_BOM);
    } else {
        mFileEncodingStatus->setText("");
        ui->actionAuto_Detect->setChecked(false);
        ui->actionEncode_in_ANSI->setChecked(false);
        ui->actionEncode_in_UTF_8->setChecked(false);
        ui->actionEncode_in_UTF_8_BOM->setChecked(false);
    }
}

void MainWindow::updateEditorSettings()
{
    pIconsManager->updateEditorGuttorIcons(pSettings->environment().iconSet(),pointToPixel(pSettings->editor().fontSize()));
    mEditorList->applySettings();
}

void MainWindow::updateEditorActions()
{
    Editor* e = mEditorList->getEditor();
    if (e==nullptr) {
        ui->actionAuto_Detect->setEnabled(false);
        ui->actionEncode_in_ANSI->setEnabled(false);
        ui->actionEncode_in_UTF_8->setEnabled(false);
        ui->actionEncode_in_UTF_8_BOM->setEnabled(false);
        mMenuEncoding->setEnabled(false);
        ui->actionConvert_to_ANSI->setEnabled(false);
        ui->actionConvert_to_UTF_8->setEnabled(false);
        ui->actionConvert_to_UTF_8_BOM->setEnabled(false);
        ui->actionCopy->setEnabled(false);
        ui->actionCut->setEnabled(false);
        ui->actionFoldAll->setEnabled(false);
        ui->actionIndent->setEnabled(false);
        ui->actionPaste->setEnabled(false);
        ui->actionRedo->setEnabled(false);
        ui->actionSave->setEnabled(false);
        ui->actionSaveAs->setEnabled(false);
        ui->actionExport_As_HTML->setEnabled(false);
        ui->actionExport_As_RTF->setEnabled(false);
        ui->actionPrint->setEnabled(false);
        ui->actionSelectAll->setEnabled(false);
        ui->actionToggleComment->setEnabled(false);
        ui->actionUnIndent->setEnabled(false);
        ui->actionUndo->setEnabled(false);
        ui->actionUnfoldAll->setEnabled(false);
        ui->actionDelete_Line->setEnabled(false);
        ui->actionDelete_Word->setEnabled(false);
        ui->actionDuplicate_Line->setEnabled(false);
        ui->actionDelete_to_BOL->setEnabled(false);
        ui->actionDelete_to_EOL->setEnabled(false);

        ui->actionFind->setEnabled(false);
        ui->actionReplace->setEnabled(false);
        ui->actionFind_Next->setEnabled(false);
        ui->actionFind_Previous->setEnabled(false);

        //code
        ui->actionReformat_Code->setEnabled(false);

        ui->actionClose->setEnabled(false);
        ui->actionClose_All->setEnabled(false);

        ui->actionAdd_bookmark->setEnabled(false);
        ui->actionRemove_Bookmark->setEnabled(false);
        ui->actionModify_Bookmark_Description->setEnabled(false);

        ui->actionLocate_in_Files_View->setEnabled(false);
    } else {
        ui->actionAuto_Detect->setEnabled(true);
        ui->actionEncode_in_ANSI->setEnabled(true);
        ui->actionEncode_in_UTF_8->setEnabled(true);
        ui->actionEncode_in_UTF_8_BOM->setEnabled(true);
        mMenuEncoding->setEnabled(true);
        ui->actionConvert_to_ANSI->setEnabled(e->encodingOption()!=ENCODING_SYSTEM_DEFAULT
                && e->fileEncoding()!=ENCODING_SYSTEM_DEFAULT);
        ui->actionConvert_to_UTF_8->setEnabled(e->encodingOption()!=ENCODING_UTF8 && e->fileEncoding()!=ENCODING_UTF8);
        ui->actionConvert_to_UTF_8_BOM->setEnabled(e->encodingOption()!=ENCODING_UTF8_BOM && e->fileEncoding()!=ENCODING_UTF8_BOM);

        ui->actionCopy->setEnabled(e->selAvail());
        ui->actionCut->setEnabled(true);
        ui->actionFoldAll->setEnabled(e->document()->count()>0);
        ui->actionIndent->setEnabled(!e->readOnly());

        ui->actionPaste->setEnabled(!e->readOnly() && !QGuiApplication::clipboard()->text().isEmpty());
        ui->actionRedo->setEnabled(e->canRedo());
        ui->actionUndo->setEnabled(e->canUndo());
        ui->actionSave->setEnabled(!e->readOnly());
        ui->actionSaveAs->setEnabled(true);
        ui->actionExport_As_HTML->setEnabled(true);
        ui->actionExport_As_RTF->setEnabled(true);
        ui->actionPrint->setEnabled(true);
        ui->actionSelectAll->setEnabled(e->document()->count()>0);
        ui->actionToggleComment->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionUnIndent->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionUnfoldAll->setEnabled(e->document()->count()>0);
        ui->actionDelete_Line->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionDelete_Word->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionDuplicate_Line->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionDelete_to_BOL->setEnabled(!e->readOnly() && e->document()->count()>0);
        ui->actionDelete_to_EOL->setEnabled(!e->readOnly() && e->document()->count()>0);

        ui->actionFind->setEnabled(true);
        ui->actionReplace->setEnabled(true);
        ui->actionFind_Next->setEnabled(true);
        ui->actionFind_Previous->setEnabled(true);

        //code
        ui->actionReformat_Code->setEnabled(true);

        ui->actionClose->setEnabled(true);
        ui->actionClose_All->setEnabled(true);

        int line = e->caretY();
        ui->actionAdd_bookmark->setEnabled(e->document()->count()>0 && !e->hasBookmark(line));
        ui->actionRemove_Bookmark->setEnabled(e->hasBookmark(line));
        ui->actionModify_Bookmark_Description->setEnabled(e->hasBookmark(line));

        ui->actionLocate_in_Files_View->setEnabled(!e->isNew());
    }

    updateCompileActions();
    updateCompilerSet();
}

void MainWindow::updateProjectActions()
{
    bool hasProject = (mProject != nullptr);
    ui->actionView_Makefile->setEnabled(hasProject);
    ui->actionProject_New_File->setEnabled(hasProject);
    ui->actionAdd_to_project->setEnabled(hasProject);
    ui->actionRemove_from_project->setEnabled(hasProject && ui->projectView->selectionModel()->selectedIndexes().count()>0);
    ui->actionMakeClean->setEnabled(hasProject);
    ui->actionProject_options->setEnabled(hasProject);
    ui->actionClose_Project->setEnabled(hasProject);
    ui->actionNew_Class->setEnabled(hasProject);
    ui->actionNew_Header->setEnabled(hasProject);
    ui->actionProject_Open_Folder_In_Explorer->setEnabled(hasProject);
    ui->actionProject_Open_In_Terminal->setEnabled(hasProject);
    updateCompileActions();
}

void MainWindow::updateCompileActions()
{
    bool hasProject = (mProject!=nullptr);
    bool editorCanCompile = false;
    Editor * e = mEditorList->getEditor();
    if (e) {
        FileType fileType = getFileType(e->filename());
        if (fileType == FileType::CSource
                || fileType == FileType::CppSource || e->isNew())
            editorCanCompile = true;
    }
    if (mCompilerManager->compiling() || mCompilerManager->running() || mDebugger->executing()
         || (!hasProject && !editorCanCompile)   ) {
        ui->actionCompile->setEnabled(false);
        ui->actionCompile_Run->setEnabled(false);
        ui->actionRun->setEnabled(false);
        ui->actionRebuild->setEnabled(false);
        ui->actionDebug->setEnabled(false);
        ui->btnRunAllProblemCases->setEnabled(false);
    } else {
        ui->actionCompile->setEnabled(true);
        ui->actionCompile_Run->setEnabled(true);
        ui->actionRun->setEnabled(true);
        ui->actionRebuild->setEnabled(true);
        ui->actionDebug->setEnabled(true);
        ui->btnRunAllProblemCases->setEnabled(true);
    }
    if (!mDebugger->executing()) {
        disableDebugActions();
    }
    ui->actionStop_Execution->setEnabled(mCompilerManager->running() || mDebugger->executing());

    //it's not a compile action, but put here for convinience
    ui->actionSaveAll->setEnabled(mProject!=nullptr
            || mEditorList->pageCount()>0);

}

void MainWindow::updateEditorColorSchemes()
{
    if (!mStatementColors)
        return;
    mStatementColors->clear();

    mEditorList->applyColorSchemes(pSettings->editor().colorScheme());
    QString schemeName = pSettings->editor().colorScheme();
    pColorManager->updateStatementColors(mStatementColors,schemeName);
    //color for code completion popup
    PColorSchemeItem item;
    QColor localHeaderColor=palette().color(QPalette::Text);
    QColor systemHeaderColor=palette().color(QPalette::Text);
    QColor projectHeaderColor=palette().color(QPalette::Text);
    QColor headerFolderColor=palette().color(QPalette::Text);
    QColor baseColor = palette().color(QPalette::Base);
    item = pColorManager->getItem(schemeName, SYNS_AttrPreprocessor);
    if (item) {
        localHeaderColor = item->foreground();
    }
    item = pColorManager->getItem(schemeName, SYNS_AttrPreprocessor);
    if (item) {
        systemHeaderColor = item->foreground();
    }
    item = pColorManager->getItem(schemeName, SYNS_AttrString);
    if (item) {
        projectHeaderColor = item->foreground();
    }
    item = pColorManager->getItem(schemeName, SYNS_AttrStringEscapeSequences);
    if (item) {
        headerFolderColor = item->foreground();
    }
    item = pColorManager->getItem(schemeName, COLOR_SCHEME_ERROR);
    if (item && haveGoodContrast(item->foreground(), baseColor)) {
        mErrorColor = item->foreground();
    } else {
        mErrorColor = palette().color(QPalette::Text);
    }
    ui->tableIssues->setErrorColor(mErrorColor);
    item = pColorManager->getItem(schemeName, COLOR_SCHEME_WARNING);
    if (item && haveGoodContrast(item->foreground(), baseColor)) {
        ui->tableIssues->setWarningColor(item->foreground());
    } else {
        ui->tableIssues->setWarningColor(palette().color(QPalette::Text));
    }
    item = pColorManager->getItem(schemeName, COLOR_SCHEME_TEXT);
    if (item) {
        QPalette pal = palette();
        pal.setColor(QPalette::Base,item->background());
        pal.setColor(QPalette::Text,item->foreground());
        mCompletionPopup->setPalette(pal);
        mHeaderCompletionPopup->setPalette(pal);
        ui->classBrowser->setPalette(pal);
        ui->txtProblemCaseInput->setPalette(pal);
        ui->txtProblemCaseExpected->setPalette(pal);
        ui->txtProblemCaseOutput->setPalette(pal);
    } else {
        QPalette pal = palette();
        mCompletionPopup->setPalette(pal);
        mHeaderCompletionPopup->setPalette(pal);
        ui->classBrowser->setPalette(pal);
        ui->txtProblemCaseInput->setPalette(pal);
        ui->txtProblemCaseExpected->setPalette(pal);
        ui->txtProblemCaseOutput->setPalette(pal);
    }
    item = pColorManager->getItem(schemeName, COLOR_SCHEME_GUTTER);
    if (item) {
        ui->txtProblemCaseInput->setLineNumberAreaForeground(item->foreground());
        ui->txtProblemCaseInput->setLineNumberAreaBackground(item->background());
        ui->txtProblemCaseOutput->setLineNumberAreaForeground(item->foreground());
        ui->txtProblemCaseOutput->setLineNumberAreaBackground(item->background());
        ui->txtProblemCaseExpected->setLineNumberAreaForeground(item->foreground());
        ui->txtProblemCaseExpected->setLineNumberAreaBackground(item->background());
    } else {
        QPalette pal = palette();
        ui->txtProblemCaseInput->setLineNumberAreaForeground(pal.color(QPalette::ButtonText));
        ui->txtProblemCaseInput->setLineNumberAreaBackground(pal.color(QPalette::Button));
        ui->txtProblemCaseOutput->setLineNumberAreaForeground(pal.color(QPalette::ButtonText));
        ui->txtProblemCaseOutput->setLineNumberAreaBackground(pal.color(QPalette::Button));
        ui->txtProblemCaseExpected->setLineNumberAreaForeground(pal.color(QPalette::ButtonText));
        ui->txtProblemCaseExpected->setLineNumberAreaBackground(pal.color(QPalette::Button));
    }
    item = pColorManager->getItem(schemeName, COLOR_SCHEME_GUTTER_ACTIVE_LINE);
    if (item) {
        ui->txtProblemCaseInput->setLineNumberAreaCurrentLine(item->foreground());
        ui->txtProblemCaseOutput->setLineNumberAreaCurrentLine(item->foreground());
        ui->txtProblemCaseExpected->setLineNumberAreaCurrentLine(item->foreground());
    } else {
        QPalette pal = palette();
        ui->txtProblemCaseInput->setLineNumberAreaCurrentLine(pal.color(QPalette::ButtonText));
        ui->txtProblemCaseOutput->setLineNumberAreaCurrentLine(pal.color(QPalette::ButtonText));
        ui->txtProblemCaseExpected->setLineNumberAreaCurrentLine(pal.color(QPalette::ButtonText));
    }
    mHeaderCompletionPopup->setSuggestionColor(localHeaderColor,
                                               projectHeaderColor,
                                               systemHeaderColor,
                                               headerFolderColor);
}

void MainWindow::applySettings()
{
    ThemeManager themeManager;
    if (pSettings->environment().useCustomTheme()) {
        themeManager.prepareCustomeTheme();
    }
    themeManager.setUseCustomTheme(pSettings->environment().useCustomTheme());
    try {
        PAppTheme appTheme = themeManager.theme(pSettings->environment().theme());
        if (appTheme->isDark())
            QApplication::setStyle(new DarkFusionStyle());
        else
            QApplication::setStyle(new LightFusionStyle());
        qApp->setPalette(appTheme->palette());
        //fix for qstatusbar bug
        mFileEncodingStatus->setPalette(appTheme->palette());
        mFileModeStatus->setPalette(appTheme->palette());
        mFileInfoStatus->setPalette(appTheme->palette());
    } catch (FileError e) {
        QMessageBox::critical(this,
                              tr("Load Theme Error"),
                              e.reason());
    }

    updateEditorColorSchemes();

    QFont font(pSettings->environment().interfaceFont());
    font.setPixelSize(pointToPixel(pSettings->environment().interfaceFontSize()));
    font.setStyleStrategy(QFont::PreferAntialias);
    qApp->setFont(font);
    this->setFont(font);
    for (QWidget* p:findChildren<QWidget*>()) {
        p->setFont(font);
    }
    if (pSettings->environment().useCustomIconSet()) {
        QString customIconSetFolder = pSettings->dirs().config(Settings::Dirs::DataType::IconSet);
        pIconsManager->prepareCustomIconSet(customIconSetFolder);
        pIconsManager->setIconSetsFolder(customIconSetFolder);
    }
    pIconsManager->updateParserIcons(pSettings->environment().iconSet(),pointToPixel(pSettings->environment().interfaceFontSize()));

    QFont caseEditorFont(pSettings->executor().caseEditorFontName());
    caseEditorFont.setPixelSize(pointToPixel(pSettings->executor().caseEditorFontSize()));
    font.setStyleStrategy(QFont::PreferAntialias);
    ui->txtProblemCaseInput->setFont(caseEditorFont);
    ui->lblProblemCaseInput->setFont(caseEditorFont);
    ui->txtProblemCaseOutput->setFont(caseEditorFont);
    ui->lblProblemCaseOutput->setFont(caseEditorFont);
    ui->txtProblemCaseExpected->setFont(caseEditorFont);
    ui->lblProblemCaseExpected->setFont(caseEditorFont);

    mTcpServer.close();
    if (pSettings->executor().enableProblemSet()) {
        if (pSettings->executor().enableCompetitiveCompanion()) {
            if (!mTcpServer.listen(QHostAddress::LocalHost,pSettings->executor().competivieCompanionPort())) {
//                QMessageBox::critical(nullptr,
//                                      tr("Listen failed"),
//                                      tr("Can't listen to port %1 form Competitive Companion.").arg(10045)
//                                      + "<BR/>"
//                                      +tr("You can turn off competitive companion support in the Problem Set options.")
//                                      + "<BR/>"
//                                      +tr("Or You can choose a different port number and try again."));
            }
        }
    }

    showHideInfosTab(ui->tabProblemSet,pSettings->ui().showProblemSet()
                     && pSettings->executor().enableProblemSet());
    showHideMessagesTab(ui->tabProblem, pSettings->ui().showProblem()
                        && pSettings->executor().enableProblemSet());

    ui->chkIgnoreSpaces->setChecked(pSettings->executor().ignoreSpacesWhenValidatingCases());
    ui->actionInterrupt->setVisible(pSettings->debugger().useGDBServer());
    //icon sets for editors
    updateEditorSettings();
    updateDebuggerSettings();
    updateActionIcons();

    //icon sets for files view
    pIconsManager->updateFileSystemIcons(pSettings->environment().iconSet(),pointToPixel(pSettings->environment().interfaceFontSize()));
    if (!mFileSystemModel.rootPath().isEmpty() && mFileSystemModel.rootPath()!=".")
        setFilesViewRoot(pSettings->environment().currentFolder());
//    for (int i=0;i<ui->cbFilesPath->count();i++) {
//        ui->cbFilesPath->setItemIcon(i,pIconsManager->getIcon(IconsManager::FILESYSTEM_GIT));
//    }

    ui->menuGit->menuAction()->setVisible(pSettings->vcs().gitOk());

    stretchExplorerPanel(!ui->tabExplorer->isShrinked());
    stretchMessagesPanel(!ui->tabMessages->isShrinked());
}

void MainWindow::applyUISettings()
{
    const Settings::UI& settings = pSettings->ui();
    restoreGeometry(settings.mainWindowGeometry());
    restoreState(settings.mainWindowState());
    ui->actionTool_Window_Bars->setChecked(settings.showToolWindowBars());
    ui->tabExplorer->setVisible(settings.showToolWindowBars());
    ui->tabMessages->setVisible(settings.showToolWindowBars());
    ui->actionStatus_Bar->setChecked(settings.showStatusBar());
    ui->statusbar->setVisible(settings.showStatusBar());

    ui->actionProject->setChecked(settings.showProject());
    showHideInfosTab(ui->tabProject,settings.showProject());
    ui->actionWatch->setChecked(settings.showWatch());
    showHideInfosTab(ui->tabWatch,settings.showWatch());
    ui->actionStructure->setChecked(settings.showStructure());
    showHideInfosTab(ui->tabStructure,settings.showStructure());
    ui->actionFiles->setChecked(settings.showFiles());
    showHideInfosTab(ui->tabFiles,settings.showFiles());
    ui->actionProblem_Set->setChecked(settings.showProblemSet());
    showHideInfosTab(ui->tabProblemSet,settings.showProblemSet()
                     && pSettings->executor().enableProblemSet());

    ui->actionIssues->setChecked(settings.showIssues());
    showHideMessagesTab(ui->tabIssues,settings.showIssues());
    ui->actionTools_Output->setChecked(settings.showCompileLog());
    showHideMessagesTab(ui->tabToolsOutput,settings.showCompileLog());
    ui->actionDebug_Window->setChecked(settings.showDebug());
    showHideMessagesTab(ui->tabDebug,settings.showDebug());
    ui->actionSearch->setChecked(settings.showSearch());
    showHideMessagesTab(ui->tabSearch,settings.showSearch());
    ui->actionTODO->setChecked(settings.showTODO());
    showHideMessagesTab(ui->tabTODO,settings.showTODO());
    ui->actionBookmark->setChecked(settings.showBookmark());
    showHideMessagesTab(ui->tabBookmark,settings.showBookmark());
    ui->actionProblem->setChecked(settings.showProblem());
    showHideMessagesTab(ui->tabProblem,settings.showProblem()
                        && pSettings->executor().enableProblemSet());

    ui->tabMessages->setBeforeShrinkSize(settings.messagesTabsSize());
    ui->tabExplorer->setBeforeShrinkSize(settings.explorerTabsSize());
    if (settings.shrinkMessagesTabs())
        ui->tabMessages->setShrinkedFlag(true);
    if (settings.shrinkExplorerTabs())
        ui->tabExplorer->setShrinkedFlag(true);
}

QFileSystemWatcher *MainWindow::fileSystemWatcher()
{
    return &mFileSystemWatcher;
}

void MainWindow::initDocks()
{
    ui->dockExplorer->setMinimumSize(0,0);
    ui->dockMessages->setMinimumSize(0,0);
    setDockExplorerToArea(dockWidgetArea(ui->dockExplorer));
    setDockMessagesToArea(dockWidgetArea(ui->dockMessages));
}

void MainWindow::removeActiveBreakpoints()
{
    for (int i=0;i<mEditorList->pageCount();i++) {
        Editor* e= (*mEditorList)[i];
        e->removeBreakpointFocus();
    }
}

void MainWindow::setActiveBreakpoint(QString FileName, int Line, bool setFocus)
{
    removeActiveBreakpoints();
    // Then active the current line in the current file
    Editor *e = mEditorList->getEditorByFilename(FileName);
    if (e!=nullptr) {
        e->setActiveBreakpointFocus(Line,setFocus);
    }
    if (setFocus) {
        this->activateWindow();
    }
}

void MainWindow::updateDPI(int oldDPI, int newDPI)
{
    //applySettings();
    if (oldDPI<1)
        oldDPI = 1;
}

void MainWindow::onFileSaved(const QString &path, bool inProject)
{
    if (pSettings->vcs().gitOk()) {
        QString branch;
        if (inProject && mProject && mProject->model()->iconProvider()->VCSRepository()->hasRepository(branch)) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        QModelIndex index =  mFileSystemModel.index(path);
        if (index.isValid()) {
            if (!inProject) {
                if ( (isCFile(path) || isHFile(path))
                        &&  !mFileSystemModelIconProvider.VCSRepository()->isFileInRepository(path)) {
                    QString output;
                    mFileSystemModelIconProvider.VCSRepository()->add(extractRelativePath(mFileSystemModelIconProvider.VCSRepository()->folder(),path),output);
                }
            }
//            qDebug()<<"update icon provider";
            mFileSystemModelIconProvider.update();
            mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
            ui->treeFiles->update(index);
        }
    }
    pMainWindow->updateForEncodingInfo();
}

void MainWindow::updateAppTitle()
{
    QString appName=tr("Red Panda C++");
    Editor *e = mEditorList->getEditor();
    QCoreApplication *app = QApplication::instance();
    if (e && !e->inProject()) {
        QString str;
        if (e->modified())
          str = e->filename() + " [*]";
        else
          str = e->filename();
        if (mDebugger->executing()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Debugging"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Debugging"),appName));
        } else if (mCompilerManager->running()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Running"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Running"),appName));
        } else if (mCompilerManager->compiling()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Compiling"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Compiling"),appName));
        } else {
            this->setWindowTitle(QString("%1 - %2 %3")
                                 .arg(str,appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - %2")
                                    .arg(str,appName));
        }
    } else if (e && e->inProject() && mProject) {
        QString str,str2;
        if (mProject->modified())
            str = mProject->name() + " [*]";
        else
            str = mProject->name();
        if (e->modified())
          str2 = extractFileName(e->filename()) + " [*]";
        else
          str2 = extractFileName(e->filename());
        if (mDebugger->executing()) {
            setWindowTitle(QString("%1 - %2 [%3] - %4 %5")
                           .arg(str,str2,
                                tr("Debugging"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Debugging"),appName));
        } else if (mCompilerManager->running()) {
            setWindowTitle(QString("%1 - %2 [%3] - %4 %5")
                           .arg(str,str2,
                                tr("Running"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Running"),appName));
        } else if (mCompilerManager->compiling()) {
            setWindowTitle(QString("%1 - %2 [%3] - %4 %5")
                           .arg(str,str2,
                                tr("Compiling"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Compiling"),appName));
        } else {
            setWindowTitle(QString("%1 - %2 %3")
                                 .arg(str,appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - %2")
                                    .arg(str,appName));
        }
    } else if (mProject) {
        QString str,str2;
        if (mProject->modified())
            str = mProject->name() + " [*]";
        else
            str = mProject->name();
        if (mDebugger->executing()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Debugging"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Debugging"),appName));
        } else if (mCompilerManager->running()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Running"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Running"),appName));
        } else if (mCompilerManager->compiling()) {
            setWindowTitle(QString("%1 - [%2] - %3 %4")
                           .arg(str,tr("Compiling"),appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - [%2] - %3")
                                    .arg(str,tr("Compiling"),appName));
        } else {
            this->setWindowTitle(QString("%1 - %2 %3")
                                 .arg(str,appName,REDPANDA_CPP_VERSION));
            app->setApplicationName(QString("%1 - %2")
                                    .arg(str,appName));
        }
    } else {
        setWindowTitle(QString("%1 %2").arg(appName,REDPANDA_CPP_VERSION));
        app->setApplicationName(QString("%1").arg(appName));
    }
}

void MainWindow::addDebugOutput(const QString &text)
{
    if (!pSettings->debugger().enableDebugConsole())
        return;
    if (text.isEmpty()) {
        ui->debugConsole->addLine("");
    } else {
        ui->debugConsole->addText(text);
    }
}

void MainWindow::changeDebugOutputLastline(const QString &test)
{
    ui->debugConsole->changeLastLine(test);
}

void MainWindow::updateDebugEval(const QString &value)
{
    ui->txtEvalOutput->clear();
    ui->txtEvalOutput->appendPlainText(value);
    ui->txtEvalOutput->moveCursor(QTextCursor::Start);
}

void MainWindow::rebuildOpenedFileHisotryMenu()
{
    mMenuRecentFiles->clear();
    mMenuRecentProjects->clear();
    if (pSettings->history().opennedFiles().size()==0) {
        mMenuRecentFiles->setEnabled(false);
    } else {
        mMenuRecentFiles->setEnabled(true);
        for (const QString& filename: pSettings->history().opennedFiles()) {
            QAction* action = new QAction(filename,mMenuRecentFiles);
            connect(action, &QAction::triggered, [&filename,this](bool){
                openFile(filename);
            });
            mMenuRecentFiles->addAction(action);
        }
        mMenuRecentFiles->addSeparator();
        QAction *action = new QAction(tr("Clear History"),mMenuRecentFiles);
        connect(action, &QAction::triggered, [](bool){
            pSettings->history().clearOpennedFiles();
        });
        mMenuRecentFiles->addAction(action);
    }

    if (pSettings->history().opennedProjects().size()==0) {
        mMenuRecentProjects->setEnabled(false);
    } else {
        mMenuRecentProjects->setEnabled(true);
        for (const QString& filename: pSettings->history().opennedProjects()) {
            QAction* action = new QAction(filename,mMenuRecentProjects);
            connect(action, &QAction::triggered, [&filename,this](bool){
                this->openProject(filename);
            });
            mMenuRecentProjects->addAction(action);
        }
        mMenuRecentProjects->addSeparator();
        QAction *action = new QAction(tr("Clear History"),mMenuRecentProjects);
        connect(action, &QAction::triggered, [](bool){
            pSettings->history().clearOpennedProjects();
        });
        mMenuRecentProjects->addAction(action);
    }

}

void MainWindow::updateClassBrowserForEditor(Editor *editor)
{
    if (!editor) {
        mClassBrowserModel.setParser(nullptr);
        mClassBrowserModel.setCurrentFile("");
        return;
    }
    if (mQuitting)
        return;
//    if not devCodeCompletion.Enabled then
//      Exit;
    if ((mClassBrowserModel.currentFile() == editor->filename())
         && (mClassBrowserModel.parser() == editor->parser()))
            return;

    mClassBrowserModel.beginUpdate();
    {
        auto action = finally([this] {
            mClassBrowserModel.endUpdate();
        });
        mClassBrowserModel.setParser(editor->parser());
//              if e.InProject then begin
//                ClassBrowser.StatementsType := devClassBrowsing.StatementsType;
//              end else
//                ClassBrowser.StatementsType := cbstFile;
        mClassBrowserModel.setCurrentFile(editor->filename());
    }
}

void MainWindow::resetAutoSaveTimer()
{
    if (pSettings->editor().enableAutoSave()) {
        mAutoSaveTimer.stop();
        //minute to milliseconds
        mAutoSaveTimer.start(pSettings->editor().autoSaveInterval()*60*1000);
        onAutoSaveTimeout();
    } else {
        mAutoSaveTimer.stop();
    }
}

void MainWindow::updateShortcuts()
{
    ShortcutManager manager;
    manager.load();
    manager.applyTo(listShortCutableActions());
}

QPlainTextEdit *MainWindow::txtLocals()
{
    return ui->txtLocals;
}

QMenuBar *MainWindow::menuBar() const
{
    return ui->menubar;
}

void MainWindow::updateStatusbarForLineCol(bool clear)
{
    Editor* e = mEditorList->getEditor();
    if (!clear && e!=nullptr) {
        int col = e->charToColumn(e->caretY(),e->caretX());
        QString msg = tr("Line:%1 Col:%2 Selected:%3 Lines:%4 Length:%5")
                .arg(e->caretY())
                .arg(col)
                .arg(e->selText().length())
                .arg(e->document()->count())
                .arg(e->document()->getTextLength());
        mFileInfoStatus->setText(msg);
    } else {
        mFileInfoStatus->setText("");
    }
}

void MainWindow::updateForStatusbarModeInfo(bool clear)
{
    Editor* e = mEditorList->getEditor();
    if (!clear && e!=nullptr) {
        QString msg;
        if (e->readOnly()) {
            msg = tr("Read Only");
        } else if (e->insertMode()) {
            msg = tr("Insert");
        } else {
            msg = tr("Overwrite");
        }
        mFileModeStatus->setText(msg);
    } else {
        mFileModeStatus->setText("");
    }
}

void MainWindow::updateStatusbarMessage(const QString &s)
{
    ui->statusbar->showMessage(s);
}

void MainWindow::openFiles(const QStringList &files)
{
    mEditorList->beginUpdate();
    mOpenningFiles = true;
    auto end = finally([this] {
        this->mEditorList->endUpdate();
        mOpenningFiles = false;
    });
    //Check if there is a project file in the list and open it
    for (const QString& file:files) {
        if (getFileType(file)==FileType::Project) {
            openProject(file);
            return;
        }
    }
    //Didn't find a project? Open all files
    for (const QString& file:files) {
        openFile(file);
    }
    mEditorList->endUpdate();
}

void MainWindow::openFile(const QString &filename, QTabWidget* page)
{
    Editor* editor = mEditorList->getOpenedEditorByFilename(filename);
    if (editor!=nullptr) {
        editor->activate();
        return;
    }
    try {
        pSettings->history().removeFile(filename);
        PProjectUnit unit;
        if (mProject) {
            unit = mProject->findUnitByFilename(filename);
        }
        bool inProject = (mProject && unit);
        QByteArray encoding = unit ? unit->encoding() :
                                     (pSettings->editor().autoDetectFileEncoding()? ENCODING_AUTO_DETECT : pSettings->editor().defaultEncoding());
        editor = mEditorList->newEditor(filename,encoding,
                                    inProject, false, page);
//        if (mProject) {
//            mProject->associateEditorToUnit(editor,unit);
//        }
        editor->activate();
        this->updateForEncodingInfo();
    } catch (FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }
}

void MainWindow::openProject(const QString &filename, bool openFiles)
{
    if (!fileExists(filename)) {
        return;
    }
    if (mProject) {
        QString s;
        if (mProject->name().isEmpty())
            s = mProject->filename();
        else
            s = mProject->name();
        if (QMessageBox::question(this,
                                  tr("Close project"),
                                  tr("Are you sure you want to close %1?")
                                  .arg(s),
                                  QMessageBox::Yes | QMessageBox::No,
                                  QMessageBox::Yes) == QMessageBox::Yes) {
            closeProject(false);
        } else {
            return;
        }
    }
    ui->tabProject->setVisible(true);
    ui->tabExplorer->setCurrentWidget(ui->tabProject);
    stretchExplorerPanel(true);
//    {
//    LeftPageControl.ActivePage := LeftProjectSheet;
//    fLeftPageControlChanged := False;
//    ClassBrowser.TabVisible:= False;
//    }

    // Only update class browser once
    mClassBrowserModel.beginUpdate();
    {
        auto action = finally([this]{
            mClassBrowserModel.endUpdate();
        });
        mProject = std::make_shared<Project>(filename,DEV_INTERNAL_OPEN,
                                             mEditorList,
                                             &mFileSystemWatcher);
        updateProjectView();
        pSettings->history().removeProject(filename);

    //  // if project manager isn't open then open it
    //  if not devData.ShowLeftPages then
    //    actProjectManager.Execute;
            //checkForDllProfiling();

        //parse the project
        //  UpdateClassBrowsing;
        scanActiveProject(true);
        if (openFiles)
            mProject->doAutoOpen();

        //update editor's inproject flag
        for (int i=0;i<mProject->units().count();i++) {
            PProjectUnit unit = mProject->units()[i];
            Editor* e = mEditorList->getOpenedEditorByFilename(unit->fileName());
            mProject->associateEditorToUnit(e,unit);
        }

        Editor * e = mEditorList->getEditor();
        if (e) {
            checkSyntaxInBack(e);
        }
        updateAppTitle();
        updateCompilerSet();
        updateClassBrowserForEditor(e);
    }
    updateForEncodingInfo();
}

void MainWindow::changeOptions(const QString &widgetName, const QString &groupName)
{
    PSettingsDialog settingsDialog = SettingsDialog::optionDialog();
    if (!groupName.isEmpty()) {
        settingsDialog->setCurrentWidget(widgetName, groupName);
    }
    settingsDialog->exec();
    if (settingsDialog->appShouldQuit()) {
        mShouldRemoveAllSettings = true;
        close();
        return;
    }

    Editor *e = mEditorList->getEditor();
    if (mProject && !e) {
        scanActiveProject(true);
    } else if (mProject && e && e->inProject()) {
        scanActiveProject(true);
    } else if (e) {
        e->reparse();
    }

}

void MainWindow::updateCompilerSet()
{
    mCompilerSet->blockSignals(true);
    mCompilerSet->clear();
    for (size_t i=0;i<pSettings->compilerSets().size();i++) {
        mCompilerSet->addItem(pSettings->compilerSets().getSet(i)->name());
    }
    int index=pSettings->compilerSets().defaultIndex();
    if (mProject) {
        Editor *e = mEditorList->getEditor();
        if ( !e || e->inProject()) {
            index = mProject->options().compilerSet;
        }
    }
    if (index < 0 || index>=mCompilerSet->count()) {
        index = pSettings->compilerSets().defaultIndex();
    }
    mCompilerSet->setCurrentIndex(index);
    mCompilerSet->blockSignals(false);
    mCompilerSet->update();
}

void MainWindow::updateDebuggerSettings()
{
    QFont font(pSettings->debugger().fontName());
    font.setPixelSize(pointToPixel(pSettings->debugger().fontSize()));
    ui->debugConsole->setFont(font);
    ui->tblMemoryView->setFont(font);
    //ui->txtMemoryView->setFont(font);
    ui->txtLocals->setFont(font);

    int idx = findTabIndex(ui->debugViews,ui->tabDebugConsole);
    if (idx>=0) {
        if (!pSettings->debugger().enableDebugConsole()) {
            ui->debugViews->removeTab(idx);
        }
    } else {
        if (pSettings->debugger().enableDebugConsole()) {
            ui->debugViews->insertTab(0, ui->tabDebugConsole, tr("Debug Console"));
        }
    }

}

void MainWindow::updateActionIcons()
{
    int size = pointToPixel(pSettings->environment().interfaceFontSize());
    pIconsManager->updateActionIcons(pSettings->environment().iconSet(), size);
    QSize iconSize(size,size);
    ui->toolbarMain->setIconSize(iconSize);
    ui->toolbarCode->setIconSize(iconSize);
    ui->toolbarCompile->setIconSize(iconSize);
    ui->toolbarDebug->setIconSize(iconSize);
    for (QToolButton* btn: mClassBrowserToolbar->findChildren<QToolButton *>()) {
        btn->setIconSize(iconSize);
    }
    for (QToolButton* btn: ui->panelFiles->findChildren<QToolButton *>()) {
        btn->setIconSize(iconSize);
    }

    ui->tabExplorer->setIconSize(iconSize);
    ui->tabMessages->setIconSize(iconSize);
    ui->EditorTabsLeft->setIconSize(iconSize);
    ui->EditorTabsRight->setIconSize(iconSize);

    ui->actionNew->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_NEW));
    ui->actionNew_Project->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_NEW));
    ui->actionOpen->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_OPEN));
    ui->actionOpen_Folder->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_OPEN_FOLDER));
    ui->actionSave->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_SAVE));
    ui->actionSaveAs->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_SAVE_AS));
    ui->actionSaveAll->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_SAVE_ALL));
    ui->actionClose->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_CLOSE));
    ui->actionClose_Project->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_CLOSE));
    ui->actionClose_All->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_CLOSE_ALL));
    ui->actionPrint->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_PRINT));

    ui->actionUndo->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_UNDO));
    ui->actionRedo->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_REDO));
    ui->actionCut->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_CUT));
    ui->actionCopy->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_COPY));
    ui->actionPaste->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_PASTE));
    ui->actionIndent->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_INDENT));
    ui->actionUnIndent->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_UNINDENT));

    ui->actionFind->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_SEARCH));
    ui->actionReplace->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_REPLACE));
    ui->actionFind_in_files->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_SEARCH_IN_FILES));

    ui->actionBack->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_BACK));
    ui->actionForward->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_FORWARD));
    ui->actionAdd_bookmark->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_ADD_BOOKMARK));
    ui->actionRemove_Bookmark->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_REMOVE_BOOKMARK));
    ui->actionReformat_Code->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_REFORMAT));

    ui->actionProject_New_File->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_NEW_FILE));
    ui->actionAdd_to_project->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_ADD_FILE));
    ui->actionRemove_from_project->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_REMOVE_FILE));
    ui->actionProject_Open_Folder_In_Explorer->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_FOLDER));
    ui->actionProject_Open_In_Terminal->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_TERM));
    ui->actionMakeClean->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));
    ui->actionProject_options->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROJECT_PROPERTIES));


    ui->actionCompile->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_COMPILE));
    ui->actionCompile_Run->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_COMPILE_RUN));
    ui->actionRun->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_RUN));
    ui->actionRebuild->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_REBUILD));
    ui->actionRun_Parameters->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_OPTIONS));
    ui->actionDebug->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_DEBUG));
    ui->actionInterrupt->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_INTERRUPT));
    ui->actionStep_Over->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_STEP_OVER));
    ui->actionStep_Into->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_STEP_INTO));
    ui->actionStep_Out->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_STEP_OUT));
    ui->actionRun_To_Cursor->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_RUN_TO_CURSOR));
    ui->actionContinue->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_CONTINUE));
    ui->actionStop_Execution->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_STOP));
    ui->actionAdd_Watch->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_ADD_WATCH));
    ui->actionRemove_Watch->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_REMOVE_WATCH));
    ui->actionRemove_All_Watches->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));
    ui->actionCompiler_Options->setIcon(pIconsManager->getIcon(IconsManager::ACTION_RUN_COMPILE_OPTIONS));

    ui->actionOptions->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_GEAR));

    ui->actionMaximize_Editor->setIcon(pIconsManager->getIcon(IconsManager::ACTION_VIEW_MAXIMUM));
    ui->actionNext_Editor->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_FORWARD));
    ui->actionPrevious_Editor->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_BACK));

    ui->actionAbout->setIcon(pIconsManager->getIcon(IconsManager::ACTION_HELP_ABOUT));

    //editor context menu
    ui->actionOpen_Containing_Folder->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_FOLDER));
    ui->actionOpen_Terminal->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_TERM));
    ui->actionFile_Properties->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_PROPERTIES));
    ui->actionLocate_in_Files_View->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_LOCATE));

    //bookmark context menu
    mBookmark_Remove->setIcon(pIconsManager->getIcon(IconsManager::ACTION_CODE_REMOVE_BOOKMARK));
    mBookmark_RemoveAll->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));

    //issues context menu
    mTableIssuesCopyAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_COPY));
    mTableIssuesClearAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));

    //search context menu
    mSearchViewClearAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CROSS));
    mSearchViewClearAllAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));

    //breakpoint context menu
    //mBreakpointViewPropertyAction
    mBreakpointViewRemoveAllAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));
    mBreakpointViewRemoveAction->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CROSS));

    //Tools Output

    //classbrowser
    mClassBrowser_Sort_By_Name->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_SORT_BY_NAME));
    mClassBrowser_Sort_By_Type->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_SORT_BY_TYPE));
    mClassBrowser_Show_Inherited->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_SHOW_INHERITED));

    //debug console
    mDebugConsole_Copy->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_COPY));
    mDebugConsole_Paste->setIcon(pIconsManager->getIcon(IconsManager::ACTION_EDIT_PASTE));
    mDebugConsole_Clear->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_CLEAN));

    //file view
    mFilesView_Open->setIcon(pIconsManager->getIcon(IconsManager::ACTION_FILE_OPEN));
    mFilesView_OpenInTerminal->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_TERM));
    mFilesView_OpenInExplorer->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_FOLDER));
    ui->actionFilesView_Hide_Non_Support_Files->setIcon(pIconsManager->getIcon(IconsManager::ACTION_MISC_FILTER));

    //problem view
    pIconsManager->setIcon(ui->btnNewProblemSet, IconsManager::ACTION_PROBLEM_SET);
    pIconsManager->setIcon(ui->btnAddProblem, IconsManager::ACTION_MISC_ADD);
    pIconsManager->setIcon(ui->btnRemoveProblem, IconsManager::ACTION_MISC_CROSS);
    pIconsManager->setIcon(ui->btnSaveProblemSet, IconsManager::ACTION_FILE_SAVE_AS);
    pIconsManager->setIcon(ui->btnLoadProblemSet, IconsManager::ACTION_FILE_OPEN_FOLDER);

    pIconsManager->setIcon(ui->btnAddProblemCase, IconsManager::ACTION_MISC_ADD);
    pIconsManager->setIcon(ui->btnRemoveProblemCase, IconsManager::ACTION_MISC_REMOVE);
    pIconsManager->setIcon(ui->btnOpenProblemAnswer, IconsManager::ACTION_PROBLEM_EDIT_SOURCE);
    pIconsManager->setIcon(ui->btnRunAllProblemCases, IconsManager::ACTION_PROBLEM_RUN_CASES);
    pIconsManager->setIcon(ui->btnCaseValidateOptions, IconsManager::ACTION_MISC_GEAR);

    pIconsManager->setIcon(ui->btnProblemCaseClearInputFileName, IconsManager::ACTION_MISC_CLEAN);
    pIconsManager->setIcon(ui->btnProblemCaseInputFileName, IconsManager::ACTION_MISC_FOLDER);
    pIconsManager->setIcon(ui->btnProblemCaseClearExpectedOutputFileName, IconsManager::ACTION_MISC_CLEAN);
    pIconsManager->setIcon(ui->btnProblemCaseExpectedOutputFileName, IconsManager::ACTION_MISC_FOLDER);

    mProblem_Properties->setIcon(pIconsManager->getIcon(IconsManager::ACTION_PROBLEM_PROPERTIES));


    int idx = ui->tabExplorer->indexOf(ui->tabWatch);
    if (idx>=0)
        ui->tabExplorer->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_RUN_ADD_WATCH));
    idx = ui->tabExplorer->indexOf(ui->tabProject);
    if (idx>=0)
        ui->tabExplorer->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_PROJECT_NEW));
    idx = ui->tabExplorer->indexOf(ui->tabFiles);
    if (idx>=0)
        ui->tabExplorer->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_FILES));
    idx = ui->tabExplorer->indexOf(ui->tabStructure);
    if (idx>=0)
        ui->tabExplorer->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_CLASSBROWSER));
    idx = ui->tabExplorer->indexOf(ui->tabProblemSet);
    if (idx>=0)
        ui->tabExplorer->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_PROBLEM_SET));

    idx = ui->tabMessages->indexOf(ui->tabIssues);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_RUN_COMPILE));
    idx = ui->tabMessages->indexOf(ui->tabDebug);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_RUN_DEBUG));
    idx = ui->tabMessages->indexOf(ui->tabSearch);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_EDIT_SEARCH));
    idx = ui->tabMessages->indexOf(ui->tabToolsOutput);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_COMPILELOG));
    idx = ui->tabMessages->indexOf(ui->tabTODO);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_TODO));
    idx = ui->tabMessages->indexOf(ui->tabBookmark);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_BOOKMARK));

    idx = ui->tabMessages->indexOf(ui->tabProblem);
    if (idx>=0)
        ui->tabMessages->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_PROBLEM_PROBLEM));
}

void MainWindow::checkSyntaxInBack(Editor *e)
{
    if (e==nullptr)
        return;

    if (!pSettings->editor().syntaxCheck()) {
        return;
    }
//    if not devEditor.AutoCheckSyntax then
//      Exit;
    //not c or cpp file
    if (!e->isNew()) {
        FileType fileType = getFileType(e->filename());
        if (fileType != FileType::CSource
                && fileType != FileType::CppSource
                && fileType != FileType::CHeader
                && fileType != FileType::CppHeader
                )
            return;
    }
    if (mCompilerManager->backgroundSyntaxChecking())
        return;
    if (mCompilerManager->compiling())
        return;
    if (!pSettings->compilerSets().defaultSet())
        return;
    if (mCheckSyntaxInBack)
        return;

    mCheckSyntaxInBack=true;
    clearIssues();
    CompileTarget target =getCompileTarget();
    if (target ==CompileTarget::Project) {
        mCompilerManager->checkSyntax(e->filename(), e->fileEncoding(), e->text(), mProject);
    } else {
        mCompilerManager->checkSyntax(e->filename(),e->fileEncoding(),e->text(), nullptr);
    }
}

bool MainWindow::compile(bool rebuild)
{
    mCompilerManager->stopPausing();
    CompileTarget target =getCompileTarget();
    if (target == CompileTarget::Project) {
        if (mProject->modified())
            mProject->saveAll();
        clearIssues();

        // Increment build number automagically
        if (mProject->options().versionInfo.autoIncBuildNr) {
            mProject->incrementBuildNumber();
        }
        mProject->buildPrivateResource();
        if (mCompileSuccessionTask) {
            mCompileSuccessionTask->execName = mProject->executable();
        }
        stretchMessagesPanel(true);
        ui->tabMessages->setCurrentWidget(ui->tabToolsOutput);
        mCompilerManager->compileProject(mProject,rebuild);
        updateCompileActions();
        updateAppTitle();
    } else {
        Editor * editor = mEditorList->getEditor();
        if (editor != NULL ) {
            clearIssues();
            if (editor->modified() || editor->isNew()) {
                if (!editor->save(false,false))
                    return false;
            }
            if (mCompileSuccessionTask) {
                mCompileSuccessionTask->execName = getCompiledExecutableName(editor->filename());
            }
            stretchMessagesPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabToolsOutput);
            mCompilerManager->compile(editor->filename(),editor->fileEncoding(),rebuild);
            updateCompileActions();
            updateAppTitle();
            return true;
        }
    }
    return false;
}

void MainWindow::runExecutable(
        const QString &exeName,
        const QString &filename,
        RunType runType,
        const QStringList& binDirs)
{
    mCompilerManager->stopPausing();
    // Check if it exists
    if (!fileExists(exeName)) {
        if (ui->actionCompile_Run->isEnabled()) {
            if (QMessageBox::question(this,tr("Confirm"),
                                     tr("Source file is not compiled.")
                                     +"<br /><br />"+tr("Compile now?"),
                    QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
                doCompileRun(runType);
            }
            return;
        } else {
            QMessageBox::critical(this,"Error",
                                  tr("Source file is not compiled."));
            return;
        }
    } else {
        if (!filename.isEmpty() && compareFileModifiedTime(filename,exeName)>=0) {
//            if (ui->actionCompile_Run->isEnabled()) {
            if (QMessageBox::warning(this,tr("Confirm"),
                                     tr("Source file is more recent than executable.")
                                     +"<br /><br />"+tr("Recompile now?"),
                    QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
                doCompileRun(runType);
                return;
            }
//            } else {
//                QMessageBox::warning(this,"Error",
//                                       tr("Source file is more recent than executable."));
//            }
        }
    }

    QString params;
    if (pSettings->executor().useParams()) {
        params = pSettings->executor().params();
    }
    if (runType==RunType::Normal) {
        if (pSettings->executor().minimizeOnRun()) {
            showMinimized();
        }
        mCompilerManager->run(exeName,params,QFileInfo(exeName).absolutePath(),binDirs);
    } else if (runType == RunType::ProblemCases) {
        POJProblem problem = mOJProblemModel.problem();
        if (problem) {
            mCompilerManager->runProblem(exeName,params,QFileInfo(exeName).absolutePath(),
                                         problem->cases);
            stretchMessagesPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabProblem);
        }
    } else if (runType == RunType::CurrentProblemCase) {
        QModelIndex index = ui->tblProblemCases->currentIndex();
        if (index.isValid()) {
            POJProblemCase problemCase =mOJProblemModel.getCase(index.row());
            mCompilerManager->runProblem(exeName,params,QFileInfo(exeName).absolutePath(),
                                     problemCase);
            stretchMessagesPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabProblem);
        }
    }
    updateCompileActions();
    updateAppTitle();
}

void MainWindow::runExecutable(RunType runType)
{
    CompileTarget target =getCompileTarget();
    if (target == CompileTarget::Project) {
        QStringList binDirs = mProject->binDirs();
        if (mProject->modified()  &&
                QMessageBox::question(
                    this,
                    tr("Rebuild Project"),
                    tr("Project has been modified, do you want to rebuild it?")
                                                      ) == QMessageBox::Yes) {
            mProject->saveAll();
            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
            mCompileSuccessionTask->type = CompileSuccessionTaskType::RunNormal;
            mCompileSuccessionTask->execName=mProject->executable();
            mCompileSuccessionTask->binDirs=binDirs;
            compile();
            return;
        }

        runExecutable(mProject->executable(),mProject->filename(),runType,
                      binDirs);
    } else {
        Editor * editor = mEditorList->getEditor();
        if (editor != NULL ) {
            if (editor->modified() || editor->isNew()) {
                if (!editor->save(false,false))
                    return;
            }
            QStringList binDirs = getDefaultCompilerSetBinDirs();
            QString exeName= getCompiledExecutableName(editor->filename());
            runExecutable(exeName,editor->filename(),runType,binDirs);
        }
    }
}

void MainWindow::debug()
{
    if (mCompilerManager->compiling())
        return;
    mCompilerManager->stopPausing();
    Settings::PCompilerSet compilerSet = pSettings->compilerSets().defaultSet();
    if (!compilerSet) {
        QMessageBox::critical(pMainWindow,
                              tr("No compiler set"),
                              tr("No compiler set is configured.")+"<BR/>"+tr("Can't start debugging."));
        return;
    }
    bool debugEnabled;
    bool stripEnabled;
    QString filePath;
    QFileInfo debugFile;
    QStringList binDirs;
    switch(getCompileTarget()) {
    case CompileTarget::Project:
        binDirs = mProject->binDirs();
        // Check if we enabled proper options
        debugEnabled = mProject->getCompileOption(CC_CMD_OPT_DEBUG_INFO) == COMPILER_OPTION_ON;
        stripEnabled = mProject->getCompileOption(LINK_CMD_OPT_STRIP_EXE) == COMPILER_OPTION_ON;
        // Ask the user if he wants to enable debugging...
        if (((!debugEnabled) || stripEnabled) &&
                (QMessageBox::question(this,
                                      tr("Enable debugging"),
                                      tr("You have not enabled debugging info (-g3) and/or stripped it from the executable (-s) in Compiler Options.<BR /><BR />Do you want to correct this now?")
                                      ) == QMessageBox::Yes)) {
            // Enable debugging, disable stripping
            mProject->setCompileOption(CC_CMD_OPT_DEBUG_INFO,COMPILER_OPTION_ON);
            mProject->setCompileOption(LINK_CMD_OPT_STRIP_EXE,"");

            // Save changes to compiler set
            mProject->saveOptions();

            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
            mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
            mCompileSuccessionTask->execName = mProject->executable();
            mCompileSuccessionTask->binDirs = binDirs;

            compile();
            return;
        }
        // Did we compile?
        if (!fileExists(mProject->executable())) {
            if (QMessageBox::question(
                        this,
                        tr("Project not built"),
                        tr("Project hasn't been built. Build it now?"),
                        QMessageBox::Yes | QMessageBox::No,
                        QMessageBox::Yes) == QMessageBox::Yes) {
                mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
                mCompileSuccessionTask->execName = mProject->executable();
                mCompileSuccessionTask->binDirs = binDirs;
                compile();
            }
            return;
        }
        if (mProject->modified()  &&
                QMessageBox::question(
                    this,
                    tr("Rebuild Project"),
                    tr("Project has been modified, do you want to rebuild it?")
                                                      ) == QMessageBox::Yes) {
            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
            mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
            mCompileSuccessionTask->execName = mProject->executable();
            mCompileSuccessionTask->binDirs = binDirs;
            compile();
            return;
        }
        // Did we choose a host application for our DLL?
        if (mProject->options().type == ProjectType::DynamicLib) {
            if (mProject->options().hostApplication.isEmpty()) {
                QMessageBox::critical(this,
                                      tr("Host applcation missing"),
                                      tr("DLL project needs a host application to run.")
                                      +"<br />"
                                      +tr("But it's missing."),
                                      QMessageBox::Ok);
                return;
            } else if (!fileExists(mProject->options().hostApplication)) {
                QMessageBox::critical(this,
                                      tr("Host application not exists"),
                                      tr("Host application file '%1' doesn't exist.")
                                      .arg(mProject->options().hostApplication),
                                      QMessageBox::Ok);
                return;
            }
        }
        // Reset UI, remove invalid breakpoints
        prepareDebugger();
        filePath = mProject->executable();

//        mDebugger->setUseUTF8(e->fileEncoding() == ENCODING_UTF8 || e->fileEncoding() == ENCODING_UTF8_BOM);

        if (!mDebugger->start(mProject->options().compilerSet, filePath, binDirs))
            return;
        filePath.replace('\\','/');
        mDebugger->sendCommand("-file-exec-and-symbols", '"' + filePath + '"');

        if (mProject->options().type == ProjectType::DynamicLib) {
            QString host =mProject->options().hostApplication;
            host.replace('\\','/');
            mDebugger->sendCommand("-file-exec-file", '"' + host + '"');
        }

        includeOrSkipDirs(mProject->options().includeDirs,
                          pSettings->debugger().skipProjectLibraries());
        includeOrSkipDirs(mProject->options().libDirs,
                          pSettings->debugger().skipProjectLibraries());
        break;
    case CompileTarget::File: {
        if (pSettings->compilerSets().defaultSet()) {
            binDirs = pSettings->compilerSets().defaultSet()->binDirs();
        }

            // Check if we enabled proper options
            debugEnabled = compilerSet->getCompileOptionValue(CC_CMD_OPT_DEBUG_INFO) == COMPILER_OPTION_ON;
            stripEnabled = compilerSet->getCompileOptionValue(LINK_CMD_OPT_STRIP_EXE) == COMPILER_OPTION_ON;
            // Ask the user if he wants to enable debugging...
            if (((!debugEnabled) || stripEnabled) &&
                    (QMessageBox::question(this,
                                          tr("Enable debugging"),
                                          tr("You have not enabled debugging info (-g3) and/or stripped it from the executable (-s) in Compiler Options.<BR /><BR />Do you want to correct this now?")
                                          ) == QMessageBox::Yes)) {
                // Enable debugging, disable stripping
                compilerSet->setCompileOption(CC_CMD_OPT_DEBUG_INFO,COMPILER_OPTION_ON);
                compilerSet->unsetCompileOption(LINK_CMD_OPT_STRIP_EXE);

                // Save changes to compiler set
                pSettings->compilerSets().saveSet(pSettings->compilerSets().defaultIndex());

                mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
                mCompileSuccessionTask->binDirs = binDirs;
                compile();
                return;
            }

            Editor* e = mEditorList->getEditor();
            if (e!=nullptr) {
                // Did we saved?
                if (e->modified() || e->isNew()) {
                    // if file is modified,save it first
                    if (!e->save(false,false))
                            return;
                }

                // Did we compiled?
                filePath = getCompiledExecutableName(e->filename());
                debugFile.setFile(filePath);
                if (!debugFile.exists()) {
                    if (QMessageBox::question(this,tr("Compile"),
                                              tr("Source file is not compiled.")+"<BR /><BR />" + tr("Compile now?"),
                                              QMessageBox::Yes|QMessageBox::No,
                                              QMessageBox::Yes) == QMessageBox::Yes) {
                        mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                        mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
                        mCompileSuccessionTask->binDirs = binDirs;
                        compile();
                        return;
                    }
                } else {
                    if (compareFileModifiedTime(e->filename(),filePath)>=0) {
                        if (QMessageBox::question(this,tr("Compile"),
                                                  tr("Source file is more recent than executable.")+"<BR /><BR />" + tr("Recompile?"),
                                                  QMessageBox::Yes|QMessageBox::No,
                                                  QMessageBox::Yes) == QMessageBox::Yes) {
                            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                            mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
                            mCompileSuccessionTask->binDirs = binDirs;
                            compile();
                            return;
                        }
                    }
                }

                prepareDebugger();
                QString filePath = debugFile.filePath().replace('\\','/');
                if (!mDebugger->start(pSettings->compilerSets().defaultIndex(),filePath, binDirs))
                    return;
                mDebugger->sendCommand("-file-exec-and-symbols", QString("\"%1\"").arg(filePath));
            }
        }
        break;
    default:
        //don't compile
        updateEditorActions();
        return;
    }

    updateEditorActions();

    // Add library folders
    includeOrSkipDirs(compilerSet->libDirs(), pSettings->debugger().skipCustomLibraries());
    includeOrSkipDirs(compilerSet->CIncludeDirs(), pSettings->debugger().skipCustomLibraries());
    includeOrSkipDirs(compilerSet->CppIncludeDirs(), pSettings->debugger().skipCustomLibraries());

    //gcc system libraries is auto loaded by gdb
    if (pSettings->debugger().skipSystemLibraries()) {
        includeOrSkipDirs(compilerSet->defaultCIncludeDirs(),true);
        includeOrSkipDirs(compilerSet->defaultCIncludeDirs(),true);
        includeOrSkipDirs(compilerSet->defaultCppIncludeDirs(),true);
    }

    mDebugger->sendAllBreakpointsToDebugger();

    // Run the debugger
    mDebugger->sendCommand("-gdb-set", "mi-async on");
    mDebugger->sendCommand("-enable-pretty-printing","");
    mDebugger->sendCommand("-data-list-register-names","");
    mDebugger->sendCommand("-gdb-set", "width 0"); // don't wrap output, very annoying
    mDebugger->sendCommand("-gdb-set", "confirm off");
    mDebugger->sendCommand("-gdb-set", "print repeats 0"); // don't repeat elements
    mDebugger->sendCommand("-gdb-set", "print elements 0"); // don't limit elements
    mDebugger->sendCommand("-environment-cd", QString("\"%1\"").arg(extractFileDir(filePath))); // restore working directory
    if (pSettings->debugger().useGDBServer()) {
        mDebugger->sendCommand("-target-select",QString("remote localhost:%1").arg(pSettings->debugger().GDBServerPort()));
        if (!debugInferiorhasBreakpoint()) {
            mDebugger->sendCommand("-break-insert","-t main");
        }
        mDebugger->sendCommand("-exec-continue","");
    } else {
#ifdef Q_OS_WIN
        mDebugger->sendCommand("-gdb-set", "new-console on");
#endif
        if (!debugInferiorhasBreakpoint()) {
            mDebugger->sendCommand("-exec-run", "--start");
        } else {
            mDebugger->sendCommand("-exec-run","");
        }

    }
}

void MainWindow::showSearchPanel(bool showReplace)
{
    stretchMessagesPanel(true);
    showSearchReplacePanel(showReplace);
    ui->tabMessages->setCurrentWidget(ui->tabSearch);
}

void MainWindow::showCPUInfoDialog()
{
    if (mCPUDialog==nullptr) {
        mCPUDialog = new CPUDialog();
        connect(mCPUDialog, &CPUDialog::closed, this, &MainWindow::cleanUpCPUDialog);
        updateCompileActions();
    }
    mCPUDialog->show();
}

static void setDockMovable(QDockWidget* dock, bool movable) {
    if (movable) {
        dock->setFeatures(dock->features() | QDockWidget::DockWidgetMovable);
    } else {
        dock->setFeatures(dock->features() & ~QDockWidget::DockWidgetMovable);
    }
}

void MainWindow::stretchMessagesPanel(bool open)
{
    //ui->dockMessages->setVisible(open);
    ui->tabMessages->setShrinked(!open);
    if (open) {
        resizeDocks({ui->dockMessages},
                    {ui->tabMessages->beforeShrinkWidthOrHeight()},
                    ui->tabMessages->shrinkOrientation());
    }
    setDockMovable(ui->dockMessages,open);
}


void MainWindow::stretchExplorerPanel(bool open)
{
    ui->tabExplorer->setShrinked(!open);
    if (open) {
        resizeDocks({ui->dockExplorer},
                    {ui->tabExplorer->beforeShrinkWidthOrHeight()},
                    ui->tabExplorer->shrinkOrientation());
    }
    setDockMovable(ui->dockExplorer,open);
}

void MainWindow::prepareDebugger()
{
    mDebugger->stop();

    // Clear logs
    ui->debugConsole->clear();
    if (pSettings->debugger().enableDebugConsole()) {
        ui->debugConsole->addLine("(gdb) ");
    }
    ui->txtEvalOutput->clear();

    // Restore when no watch vars are shown
    mDebugger->setLeftPageIndexBackup(ui->tabExplorer->currentIndex());

    // Focus on the debugging buttons
    ui->tabExplorer->setCurrentWidget(ui->tabWatch);
    ui->tabMessages->setCurrentWidget(ui->tabDebug);
    ui->debugViews->setCurrentWidget(ui->tabLocals);
    stretchMessagesPanel(true);
    stretchExplorerPanel(true);

    // Reset watch vars
    //    mDebugger->deleteWatchVars(false);
}

void MainWindow::doAutoSave(Editor *e)
{

    if (!e || !e->canAutoSave())
        return;
    QString filename = e->filename();
    try {
        QFileInfo fileInfo(filename);
        QDir parent = fileInfo.absoluteDir();
        QString baseName = fileInfo.completeBaseName();
        QString suffix = fileInfo.suffix();
        switch(pSettings->editor().autoSaveStrategy()) {
        case assOverwrite:
            e->save();
            return;
        case assAppendUnixTimestamp:
            filename = parent.filePath(
                        QString("%1.%2.%3")
                        .arg(baseName)
                        .arg(QDateTime::currentSecsSinceEpoch())
                        .arg(suffix));
            break;
        case assAppendFormatedTimeStamp: {
            QDateTime time = QDateTime::currentDateTime();
            filename = parent.filePath(
                        QString("%1.%2.%3")
                        .arg(baseName)
                        .arg(time.toString("yyyy.MM.dd.hh.mm.ss"))
                        .arg(suffix));
        }
        }
        if (e->isNew()) {
            e->saveAs();
        } else {
            e->saveFile(filename);
            e->setCanAutoSave(false);
        }
    } catch (FileError& error) {
        QMessageBox::critical(e,
                              tr("Auto Save Error"),
                              tr("Auto save \"%1\" to \"%2\" failed:%3")
                              .arg(e->filename(), filename, error.reason()));
    }
}

//static void limitActionShortCutScope(QAction* action,QWidget* scopeWidget) {
//    action->setParent(scopeWidget);
//    action->setShortcutContext(Qt::WidgetWithChildrenShortcut);
//}

QAction* MainWindow::createActionFor(
        const QString& text,
        QWidget* parent,
        QKeySequence shortcut) {
    QAction* action= new QAction(text,parent);
    if (!shortcut.isEmpty())
        action->setShortcut(shortcut);
    action->setPriority(QAction::HighPriority);
    action->setShortcutContext(Qt::WidgetWithChildrenShortcut);
    parent->addAction(action);
    return action;
}

void MainWindow::scanActiveProject(bool parse)
{
    if (!mProject)
        return;
    mProject->cppParser()->setEnabled(pSettings->codeCompletion().enabled());

    //UpdateClassBrowsing;
    if (parse) {
        resetCppParser(mProject->cppParser(),mProject->options().compilerSet);
        mProject->resetParserProjectFiles();
        parseFileList(mProject->cppParser());
    } else {
        mProject->resetParserProjectFiles();
    };
}

void MainWindow::includeOrSkipDirs(const QStringList &dirs, bool skip)
{
    Q_ASSERT(mDebugger);
    foreach (QString dir,dirs) {
        QString dirName = dir.replace('\\','/');
        if (skip) {
            mDebugger->sendCommand(
                        "skip",
                        QString("-gfi \"%1/%2\"")
                        .arg(dirName,"*.*"));
        } else {
            mDebugger->sendCommand(
                        "-environment-directory",
                        QString("\"%1\"").arg(dirName));
        }
    }
}

void MainWindow::onBookmarkContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mBookmark_Remove);
    menu.addAction(mBookmark_RemoveAll);
    menu.addAction(mBookmark_Modify);
    menu.exec(ui->tableBookmark->mapToGlobal(pos));
}

void MainWindow::saveLastOpens()
{
    QString filename = includeTrailingPathDelimiter(pSettings->dirs().config()) + DEV_LASTOPENS_FILE;
    if (fileExists(filename)) {
        if (!QFile::remove(filename)) {
            QMessageBox::critical(this,
                                  tr("Save last open info error"),
                                  tr("Can't remove old last open information file '%1'")
                                  .arg(filename),
                                  QMessageBox::Ok);
            return;
        }

    }
    SimpleIni lastOpenIni;
    lastOpenIni.SetLongValue("LastOpens","Count", mEditorList->pageCount());
    if (mProject) {
        lastOpenIni.SetValue("LastOpens","Project",mProject->filename().toLocal8Bit());
    }
    for (int i=0;i<mEditorList->pageCount();i++) {
      Editor * editor = (*mEditorList)[i];
      QByteArray sectionName = QString("Editor_%1").arg(i).toLocal8Bit();
      lastOpenIni.SetValue(sectionName,"FileName", editor->filename().toLocal8Bit());
      lastOpenIni.SetBoolValue(sectionName, "OnLeft",editor->pageControl() != mEditorList->rightPageWidget());
      lastOpenIni.SetBoolValue(sectionName, "Focused",editor->hasFocus());
      lastOpenIni.SetLongValue(sectionName, "CursorCol", editor->caretX());
      lastOpenIni.SetLongValue(sectionName, "CursorRow", editor->caretY());
      lastOpenIni.SetLongValue(sectionName, "TopLine", editor->topLine());
      lastOpenIni.SetLongValue(sectionName, "LeftChar", editor->leftChar());
    }
    if (lastOpenIni.SaveFile(filename.toLocal8Bit())!=SI_Error::SI_OK) {
        QMessageBox::critical(this,
                              tr("Save last open info error"),
                              tr("Can't save last open info file '%1'")
                              .arg(filename),
                              QMessageBox::Ok);
        return;
    }
}

void MainWindow::loadLastOpens()
{
    QString filename = includeTrailingPathDelimiter(pSettings->dirs().config()) + DEV_LASTOPENS_FILE;
    if (!fileExists(filename))
        return;
    SimpleIni lastOpenIni;
    if (lastOpenIni.LoadFile(filename.toLocal8Bit())!=SI_Error::SI_OK) {
        QMessageBox::critical(this,
                              tr("Load last open info error"),
                              tr("Can't load last open info file '%1'")
                              .arg(filename),
                              QMessageBox::Ok);
        return;
    }
    QString projectFilename = QString::fromLocal8Bit((lastOpenIni.GetValue("LastOpens", "Project","")));
    int count = lastOpenIni.GetLongValue("LastOpens","Count",0);
    if (fileExists(projectFilename)) {
        openProject(projectFilename, false);
    }
    Editor *  focusedEditor = nullptr;
    for (int i=0;i<count;i++) {
        QByteArray sectionName = QString("Editor_%1").arg(i).toLocal8Bit();
        QString editorFilename = QString::fromLocal8Bit(lastOpenIni.GetValue(sectionName,"FileName",""));
        if (!fileExists(editorFilename))
            continue;
        editorFilename = QFileInfo(editorFilename).absoluteFilePath();
        bool onLeft = lastOpenIni.GetBoolValue(sectionName,"OnLeft",true);
        QTabWidget* page;
        if (onLeft)
            page = mEditorList->leftPageWidget();
        else
            page = mEditorList->rightPageWidget();
        PProjectUnit unit;
        if (mProject) {
            unit = mProject->findUnitByFilename(editorFilename);
        }
        bool inProject = (mProject && unit);
        QByteArray encoding = unit ? unit->encoding() :
                                     (pSettings->editor().autoDetectFileEncoding()? ENCODING_AUTO_DETECT : pSettings->editor().defaultEncoding());
        Editor * editor = mEditorList->newEditor(editorFilename, encoding, inProject,false,page);
//        if (mProject) {
//            mProject->associateEditorToUnit(editor,unit);
//        }
        if (!editor)
            continue;
        BufferCoord pos;
        pos.Char = lastOpenIni.GetLongValue(sectionName,"CursorCol", 1);
        pos.Line = lastOpenIni.GetLongValue(sectionName,"CursorRow", 1);
        editor->setCaretXY(pos);
        editor->setTopLine(
                    lastOpenIni.GetLongValue(sectionName,"TopLine", 1)
                    );
        editor->setLeftChar(
                    lastOpenIni.GetLongValue(sectionName,"LeftChar", 1)
                    );
        if (lastOpenIni.GetBoolValue(sectionName,"Focused",false))
            focusedEditor = editor;
        pSettings->history().removeFile(editorFilename);
    }
    if (count>0) {
        updateEditorActions();
        updateForEncodingInfo();
    }
    if (focusedEditor)
        focusedEditor->activate();
}

void MainWindow::updateTools()
{
    ui->menuTools->clear();
    ui->menuTools->addAction(ui->actionOptions);
    if (!mToolsManager->tools().isEmpty()) {
        ui->menuTools->addSeparator();
        foreach (const PToolItem& item, mToolsManager->tools()) {
            QAction* action = new QAction(item->title,ui->menuTools);
            connect(action, &QAction::triggered,
                    [item] (){
                QString program = parseMacros(item->program);
                QString workDir = parseMacros(item->workingDirectory);
                QString params = parseMacros(item->parameters);
                if (!program.endsWith(".bat",Qt::CaseInsensitive)) {
                    QTemporaryFile file(QDir::tempPath()+QDir::separator()+"XXXXXX.bat");
                    file.setAutoRemove(false);
                    if (file.open()) {
                        file.write(QString("cd /d \"%1\"")
                                   .arg(localizePath(workDir))
                                   .toLocal8Bit()+LINE_BREAKER);
                        file.write((program+" "+params).toLocal8Bit()
                                   + LINE_BREAKER);
                        file.close();
                        if (item->pauseAfterExit) {
                            executeFile(
                                        includeTrailingPathDelimiter(pSettings->dirs().appLibexecDir())+"ConsolePauser.exe",
                                        " 1 \""+localizePath(file.fileName())+"\" ",
                                        workDir, file.fileName());
                        } else {
                            executeFile(
                                        file.fileName(),
                                        "",
                                        workDir, file.fileName());
                        }
                    }
                } else {
                    if (item->pauseAfterExit) {
                        executeFile(
                                    includeTrailingPathDelimiter(pSettings->dirs().appLibexecDir())+"ConsolePauser.exe",
                                    " 1 \""+program+"\" "+params,
                                    workDir, "");
                    } else {
                        executeFile(
                                    program,
                                    params,
                                    workDir, "");
                    }
                }

            });
            ui->menuTools->addAction(action);
        }
    }
}

void MainWindow::newEditor()
{
    try {
        Editor * editor=mEditorList->newEditor("",
                                               pSettings->editor().defaultEncoding(),
                                               false,true);
        editor->activate();
        updateForEncodingInfo();
    }  catch (FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }

}

void MainWindow::buildContextMenus()
{
    //context menu signal for the problem list view
    ui->lstProblemSet->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->lstProblemSet, &QWidget::customContextMenuRequested,
            this, &MainWindow::onLstProblemSetContextMenu);
    mProblem_Properties = createActionFor(
                tr("Properties..."),
                this
                );
    mProblem_Properties->setObjectName("actionProbelm_Properties");
    connect(mProblem_Properties, &QAction::triggered, this,
            &MainWindow::onProblemProperties);

    mProblem_OpenSource=createActionFor(
                tr("Open Source File"),
                ui->lstProblemSet
                );
    connect(mProblem_OpenSource, &QAction::triggered, this,
            &MainWindow::onProblemOpenSource);

    //context menu signal for the problem list view
    ui->tblProblemCases->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->tblProblemCases, &QWidget::customContextMenuRequested,
            this, &MainWindow::onTableProblemCasesContextMenu);
    mProblem_RunAllCases = createActionFor(
                tr("Run All Cases"),
                this
                );
    mProblem_RunAllCases->setObjectName("Problem_RunAllCases");
    connect(mProblem_RunAllCases, &QAction::triggered, this,
            &MainWindow::on_btnRunAllProblemCases_clicked);

    mProblem_RunCurrentCase = createActionFor(
                tr("Run Current Case"),
                this
                );
    mProblem_RunCurrentCase->setObjectName("Problem_RunCurrentCases");
    connect(mProblem_RunCurrentCase, &QAction::triggered, this,
            &MainWindow::onProblemRunCurrentCase);

    mProblem_batchSetCases = createActionFor(
                tr("Batch Set Cases"),
                this);
    mProblem_batchSetCases->setObjectName("Problem_BatchSetCases");
    connect(mProblem_batchSetCases, &QAction::triggered, this,
            &MainWindow::onProblemBatchSetCases);

    //context menu signal for the Problem Set lable
    ui->lblProblemSet->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->lblProblemSet, &QWidget::customContextMenuRequested,
            this, &MainWindow::onLableProblemSetContextMenuRequested);

    //context menu signal for the watch view
    ui->watchView->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->watchView,&QWidget::customContextMenuRequested,
            this, &MainWindow::onWatchViewContextMenu);

    //context menu signal for the bookmark view
    ui->tableBookmark->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->tableBookmark,&QWidget::customContextMenuRequested,
            this, &MainWindow::onBookmarkContextMenu);
    mBookmark_Remove=createActionFor(
                tr("Remove"),
                ui->tableBookmark);
    connect(mBookmark_Remove, &QAction::triggered,
            this, &MainWindow::onBookmarkRemove);

    mBookmark_RemoveAll=createActionFor(
                tr("Remove All Bookmarks"),
                ui->tableBookmark);
    connect(mBookmark_RemoveAll, &QAction::triggered,
            this, &MainWindow::onBookmarkRemoveAll);
    mBookmark_Modify=createActionFor(
                tr("Modify Description"),
                ui->tableBookmark);
    connect(mBookmark_Modify, &QAction::triggered,
            this, &MainWindow::onBookmarkModify);

    //context menu signal for the watch view
    ui->debugConsole->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->debugConsole,&QWidget::customContextMenuRequested,
            this, &MainWindow::onDebugConsoleContextMenu);
    mDebugConsole_ShowDetailLog = createActionFor(
                tr("Show detail debug logs"),
                ui->debugConsole);
    mDebugConsole_ShowDetailLog->setCheckable(true);
    connect(mDebugConsole_ShowDetailLog, &QAction::toggled,
            this, &MainWindow::onDebugConsoleShowDetailLog);
    mDebugConsole_Copy=createActionFor(
                tr("Copy"),
                ui->debugConsole,
                QKeySequence("Ctrl+C"));
    connect(mDebugConsole_Copy, &QAction::triggered,
            this, &MainWindow::onDebugConsoleCopy);
    mDebugConsole_Paste=createActionFor(
                tr("Paste"),
                ui->debugConsole,
                QKeySequence("Ctrl+V"));
    connect(mDebugConsole_Paste, &QAction::triggered,
            this, &MainWindow::onDebugConsolePaste);
    mDebugConsole_SelectAll=createActionFor(
                tr("Select All"),
                ui->debugConsole);
    connect(mDebugConsole_SelectAll, &QAction::triggered,
            this, &MainWindow::onDebugConsoleSelectAll);
    mDebugConsole_Clear=createActionFor(
                tr("Clear"),
                ui->debugConsole);
    connect(mDebugConsole_Clear, &QAction::triggered,
            this, &MainWindow::onDebugConsoleClear);

    //context menu signal for Editor's tabbar
    ui->EditorTabsLeft->tabBar()->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->EditorTabsLeft->tabBar(),
            &QWidget::customContextMenuRequested,
            this,
            &MainWindow::onEditorLeftTabContextMenu
            );

    ui->EditorTabsRight->tabBar()->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->EditorTabsRight->tabBar(),
            &QWidget::customContextMenuRequested,
            this,
            &MainWindow::onEditorRightTabContextMenu
            );

    //context menu signal for Compile Issue view
    ui->tableIssues->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->tableIssues,&QWidget::customContextMenuRequested,
            this, &MainWindow::onTableIssuesContextMenu);
    mTableIssuesCopyAction = createActionFor(
                tr("Copy"),
                ui->tableIssues,
                QKeySequence("Ctrl+C"));
    connect(mTableIssuesCopyAction,&QAction::triggered,
            this, &MainWindow::onTableIssuesCopy);

    mTableIssuesCopyAllAction = createActionFor(
                tr("Copy all"),
                ui->tableIssues,
                QKeySequence("Ctrl+Shift+C"));
    connect(mTableIssuesCopyAllAction,&QAction::triggered,
            this, &MainWindow::onTableIssuesCopyAll);

    mTableIssuesClearAction = createActionFor(
                tr("Clear"),
                ui->tableIssues);
    connect(mTableIssuesClearAction,&QAction::triggered,
            this, &MainWindow::onTableIssuesClear);

    //context menu signal for search view
    ui->searchHistoryPanel->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->searchHistoryPanel, &QWidget::customContextMenuRequested,
            this, &MainWindow::onSearchViewContextMenu);
    mSearchViewClearAction = createActionFor(
                tr("Remove this search"),
                ui->searchHistoryPanel);
    connect(mSearchViewClearAction, &QAction::triggered,
            this, &MainWindow::onSearchViewClear);
    mSearchViewClearAllAction = createActionFor(
                tr("Clear all searches"),
                ui->searchHistoryPanel);
    connect(mSearchViewClearAllAction,&QAction::triggered,
            this, &MainWindow::onSearchViewClearAll);

    //context menu signal for breakpoints view
    ui->tblBreakpoints->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->tblBreakpoints,&QWidget::customContextMenuRequested,
             this, &MainWindow::onBreakpointsViewContextMenu);
    mBreakpointViewPropertyAction = createActionFor(
                tr("Breakpoint condition..."),
                ui->tblBreakpoints);
    connect(mBreakpointViewPropertyAction,&QAction::triggered,
            this, &MainWindow::onBreakpointViewProperty);

    mBreakpointViewRemoveAllAction = createActionFor(
                tr("Remove All Breakpoints"),
                ui->tblBreakpoints);
    connect(mBreakpointViewRemoveAllAction,&QAction::triggered,
            this, &MainWindow::onBreakpointViewRemoveAll);
    mBreakpointViewRemoveAction = createActionFor(
                tr("Remove Breakpoint"),
                ui->tblBreakpoints);
    connect(mBreakpointViewRemoveAction,&QAction::triggered,
            this, &MainWindow::onBreakpointRemove);

    //context menu signal for project view
    ui->projectView->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->projectView,&QWidget::customContextMenuRequested,
             this, &MainWindow::onProjectViewContextMenu);
    mProject_Rename_Unit = createActionFor(
                tr("Rename File"),
                ui->projectView);
    connect(mProject_Rename_Unit, &QAction::triggered,
            this, &MainWindow::onProjectRenameUnit);
    mProject_Add_Folder = createActionFor(
                tr("Add Folder"),
                ui->projectView);
    connect(mProject_Add_Folder, &QAction::triggered,
            this, &MainWindow::onProjectAddFolder);

    mProject_Rename_Folder = createActionFor(
                tr("Rename Folder"),
                ui->projectView);
    connect(mProject_Rename_Folder, &QAction::triggered,
            this, &MainWindow::onProjectRenameFolder);

    mProject_Remove_Folder = createActionFor(
                tr("Remove Folder"),
                ui->projectView);
    connect(mProject_Remove_Folder, &QAction::triggered,
            this, &MainWindow::onProjectRemoveFolder);
    mProject_SwitchFileSystemViewMode = createActionFor(
                tr("Switch to normal view"),
                ui->projectView);
    connect(mProject_SwitchFileSystemViewMode, &QAction::triggered,
            this, &MainWindow::onProjectSwitchFileSystemViewMode);

    mProject_SwitchCustomViewMode = createActionFor(
                tr("Switch to custom view"),
                ui->projectView);
    connect(mProject_SwitchCustomViewMode, &QAction::triggered,
            this, &MainWindow::onProjectSwitchCustomViewMode);

    //context menu signal for class browser
    ui->tabStructure->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->tabStructure,&QWidget::customContextMenuRequested,
             this, &MainWindow::onClassBrowserContextMenu);
    mClassBrowser_Sort_By_Type = createActionFor(
                tr("Sort By Type"),
                ui->tabStructure);
    mClassBrowser_Sort_By_Type->setCheckable(true);
    mClassBrowser_Sort_By_Type->setIcon(QIcon(":/icons/images/newlook24/077-sort-type.png"));
    mClassBrowser_Sort_By_Name = createActionFor(
                tr("Sort alphabetically"),
                ui->tabStructure);
    mClassBrowser_Sort_By_Name->setCheckable(true);
    mClassBrowser_Sort_By_Name->setIcon(QIcon(":/icons/images/newlook24/076-sort-alpha.png"));
    mClassBrowser_Show_Inherited = createActionFor(
                tr("Show inherited members"),
                ui->tabStructure);
    mClassBrowser_Show_Inherited->setCheckable(true);
    mClassBrowser_Show_Inherited->setIcon(QIcon(":/icons/images/newlook24/075-show-inheritance.png"));
    mClassBrowser_goto_declaration = createActionFor(
                tr("Goto declaration"),
                ui->tabStructure);
    mClassBrowser_goto_definition = createActionFor(
                tr("Goto definition"),
                ui->tabStructure);

    mClassBrowser_Sort_By_Name->setChecked(pSettings->ui().classBrowserSortAlpha());
    mClassBrowser_Sort_By_Type->setChecked(pSettings->ui().classBrowserSortType());
    mClassBrowser_Show_Inherited->setChecked(pSettings->ui().classBrowserShowInherited());
    connect(mClassBrowser_Sort_By_Name, &QAction::toggled,
            this, &MainWindow::onClassBrowserSortByName);
    connect(mClassBrowser_Sort_By_Type, &QAction::toggled,
            this, &MainWindow::onClassBrowserSortByType);
    connect(mClassBrowser_Show_Inherited, &QAction::toggled,
            this, &MainWindow::onClassBrowserShowInherited);

    connect(mClassBrowser_goto_definition,&QAction::triggered,
            this, &MainWindow::onClassBrowserGotoDefinition);

    connect(mClassBrowser_goto_declaration,&QAction::triggered,
            this, &MainWindow::onClassBrowserGotoDeclaration);

    //toolbar for class browser
    mClassBrowserToolbar = new QWidget();
    {
        QVBoxLayout* layout = dynamic_cast<QVBoxLayout*>( ui->tabStructure->layout());
        layout->insertWidget(0,mClassBrowserToolbar);
        QHBoxLayout* hlayout =  new QHBoxLayout();
        hlayout->setContentsMargins(2,2,2,2);
        mClassBrowserToolbar->setLayout(hlayout);
        QToolButton * toolButton;
        int size = pointToPixel(pSettings->environment().interfaceFontSize());
        QSize iconSize(size,size);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(mClassBrowser_Sort_By_Type);
        hlayout->addWidget(toolButton);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(mClassBrowser_Sort_By_Name);
        hlayout->addWidget(toolButton);
        QFrame * vLine = new QFrame();
        vLine->setFrameShape(QFrame::VLine);
        vLine->setFrameShadow(QFrame::Sunken);
        hlayout->addWidget(vLine);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(mClassBrowser_Show_Inherited);
        hlayout->addWidget(toolButton);
        hlayout->addStretch();
    }

    //menu for statusbar
    mFileEncodingStatus->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(mFileEncodingStatus,&QWidget::customContextMenuRequested,
             this, &MainWindow::onFileEncodingContextMenu);

    //menu for files view
    ui->treeFiles->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->treeFiles,&QWidget::customContextMenuRequested,
             this, &MainWindow::onFilesViewContextMenu);

    mFilesView_CreateFolder = createActionFor(
                tr("New Folder"),
                ui->treeFiles);
    connect(mFilesView_CreateFolder, &QAction::triggered,
            this, &MainWindow::onFilesViewCreateFolder);

    mFilesView_CreateFile = createActionFor(
                tr("New File"),
                ui->treeFiles);
    connect(mFilesView_CreateFile, &QAction::triggered,
            this, &MainWindow::onFilesViewCreateFile);

    mFilesView_Rename = createActionFor(
                tr("Rename"),
                ui->treeFiles);
    connect(mFilesView_Rename, &QAction::triggered,
            this, &MainWindow::onFilesViewRename);

    mFilesView_RemoveFile = createActionFor(
                tr("Delete"),
                ui->treeFiles);
    mFilesView_RemoveFile->setShortcut(Qt::Key_Delete);
    connect(mFilesView_RemoveFile, &QAction::triggered,
            this, &MainWindow::onFilesViewRemoveFiles);
    mFilesView_Open = createActionFor(
                tr("Open in Editor"),
                ui->treeFiles);
    connect(mFilesView_Open, &QAction::triggered,
            this, &MainWindow::onFilesViewOpen);

    mFilesView_OpenWithExternal = createActionFor(
                tr("Open in External Program"),
                ui->treeFiles);
    connect(mFilesView_OpenWithExternal, &QAction::triggered,
            this, &MainWindow::onFilesViewOpenWithExternal);
    mFilesView_OpenInTerminal = createActionFor(
                tr("Open in Terminal"),
                ui->treeFiles);
    mFilesView_OpenInTerminal->setIcon(ui->actionOpen_Terminal->icon());
    connect(mFilesView_OpenInTerminal, &QAction::triggered,
            this, &MainWindow::onFilesViewOpenInTerminal);
    mFilesView_OpenInExplorer = createActionFor(
                tr("Open in Windows Explorer"),
                ui->treeFiles);
    mFilesView_OpenInExplorer->setIcon(ui->actionOpen_Containing_Folder->icon());
    connect(mFilesView_OpenInExplorer, &QAction::triggered,
            this, &MainWindow::onFilesViewOpenInExplorer);

    //toolbar for files view
    {
        QHBoxLayout* hlayout =  dynamic_cast<QHBoxLayout*>(ui->panelFiles->layout());
        QToolButton * toolButton;
        int size = pointToPixel(pSettings->environment().interfaceFontSize());
        QSize iconSize(size,size);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(ui->actionOpen_Folder);
        hlayout->addWidget(toolButton);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(ui->actionLocate_in_Files_View);
        hlayout->addWidget(toolButton);
        QFrame * vLine = new QFrame();
        vLine->setFrameShape(QFrame::VLine);
        vLine->setFrameShadow(QFrame::Sunken);
        hlayout->addWidget(vLine);
        toolButton = new QToolButton;
        toolButton->setIconSize(iconSize);
        toolButton->setDefaultAction(ui->actionFilesView_Hide_Non_Support_Files);
        ui->actionFilesView_Hide_Non_Support_Files->setChecked(pSettings->environment().hideNonSupportFilesInFileView());
        hlayout->addWidget(toolButton);
    }

    //context menu signal for class browser
    ui->txtToolsOutput->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(ui->txtToolsOutput,&QWidget::customContextMenuRequested,
             this, &MainWindow::onToolsOutputContextMenu);
    mToolsOutput_Clear = createActionFor(
                tr("Clear"),
                ui->txtToolsOutput);
    connect(mToolsOutput_Clear, &QAction::triggered,
            this, &MainWindow::onToolsOutputClear);
    mToolsOutput_Copy = createActionFor(
                tr("Copy"),
                ui->txtToolsOutput);
    mToolsOutput_Copy->setShortcut(QKeySequence("Ctrl+C"));
    connect(mToolsOutput_Copy, &QAction::triggered,
            this, &MainWindow::onToolsOutputCopy);
    mToolsOutput_SelectAll = createActionFor(
                tr("Select All"),
                ui->txtToolsOutput);
    connect(mToolsOutput_SelectAll, &QAction::triggered,
            this, &MainWindow::onToolsOutputSelectAll);
}

void MainWindow::buildEncodingMenu()
{
    QMenu* menuCharsets = new QMenu();
    menuCharsets->setTitle(tr("Character sets"));
    QStringList languages = pCharsetInfoManager->languageNames();
    foreach (const QString& langName, languages) {
        QMenu* menuLang = new QMenu();
        menuLang->setTitle(langName);
        menuCharsets->addMenu(menuLang);
        QList<PCharsetInfo> charInfos = pCharsetInfoManager->findCharsetsByLanguageName(langName);
        connect(menuLang,&QMenu::aboutToShow,
                [langName,menuLang,this]() {
            menuLang->clear();
            Editor* editor = mEditorList->getEditor();
            QList<PCharsetInfo> charInfos = pCharsetInfoManager->findCharsetsByLanguageName(langName);
            foreach (const PCharsetInfo& info, charInfos) {
                QAction * action = new QAction(info->name);
                action->setCheckable(true);
                if (editor)
                    action->setChecked(info->name == editor->encodingOption());
                connect(action, &QAction::triggered,
                        [info,this](){
                    Editor * editor = mEditorList->getEditor();
                    if (editor == nullptr)
                        return;
                    try {
                        editor->setEncodingOption(info->name);
                    } catch(FileError e) {
                        QMessageBox::critical(this,tr("Error"),e.reason());
                    }
                });
                menuLang->addAction(action);
            }
        });
    }

    mMenuEncoding = new QMenu();
    mMenuEncoding->setTitle(tr("File Encoding"));
    mMenuEncoding->addAction(ui->actionAuto_Detect);
    mMenuEncoding->addAction(ui->actionEncode_in_ANSI);
    mMenuEncoding->addAction(ui->actionEncode_in_UTF_8);
    mMenuEncoding->addAction(ui->actionEncode_in_UTF_8_BOM);

    mMenuEncoding->addMenu(menuCharsets);
    mMenuEncoding->addSeparator();
    mMenuEncoding->addAction(ui->actionConvert_to_ANSI);
    mMenuEncoding->addAction(ui->actionConvert_to_UTF_8);
    mMenuEncoding->addAction(ui->actionConvert_to_UTF_8_BOM);

    QList<PCharsetInfo> charsetsForLocale = pCharsetInfoManager->findCharsetByLocale(pCharsetInfoManager->localeName());

    foreach(const PCharsetInfo& charset, charsetsForLocale) {
        QAction * action = new QAction(
                    tr("Convert to %1").arg(QString(charset->name)));
        connect(action, &QAction::triggered,
                [charset,this](){
            Editor * editor = mEditorList->getEditor();
            if (editor == nullptr)
                return;
            if (QMessageBox::warning(this,tr("Confirm Convertion"),
                           tr("The editing file will be saved using %1 encoding. <br />This operation can't be reverted. <br />Are you sure to continue?")
                           .arg(QString(charset->name)),
                           QMessageBox::Yes, QMessageBox::No)!=QMessageBox::Yes)
                return;
            editor->convertToEncoding(charset->name);
        });
        mMenuEncoding->addAction(action);
    }

    ui->menuEdit->insertMenu(ui->actionFoldAll,mMenuEncoding);
    ui->menuEdit->insertSeparator(ui->actionFoldAll);
    ui->actionAuto_Detect->setCheckable(true);
    ui->actionEncode_in_ANSI->setCheckable(true);
    ui->actionEncode_in_UTF_8->setCheckable(true);
    ui->actionEncode_in_UTF_8_BOM->setCheckable(true);
}

void MainWindow::maximizeEditor()
{
    if (ui->tabExplorer->isShrinked() && ui->tabExplorer->isShrinked()) {
        stretchMessagesPanel(true);
        stretchExplorerPanel(true);
    } else {
        stretchMessagesPanel(false);
        stretchExplorerPanel(false);
    }
}

QStringList MainWindow::getBinDirsForCurrentEditor()
{
    Editor * e=mEditorList->getEditor();
    if (e) {
        if (e->inProject() && mProject) {
            return mProject->binDirs();
        } else {
            return getDefaultCompilerSetBinDirs();
        }
    } else if (mProject) {
        return mProject->binDirs();
    }
    return QStringList();
}

QStringList MainWindow::getDefaultCompilerSetBinDirs()
{
    if (pSettings->compilerSets().defaultSet())
        return pSettings->compilerSets().defaultSet()->binDirs();
    return QStringList();
}

void MainWindow::openShell(const QString &folder, const QString &shellCommand, const QStringList& binDirs)
{
    QProcess process;
    process.setWorkingDirectory(folder);
    process.setProgram(shellCommand);
#ifdef Q_OS_WIN
    process.setCreateProcessArgumentsModifier([](QProcess::CreateProcessArguments * args){
        args->flags |= CREATE_NEW_CONSOLE;
        args->startupInfo->dwFlags &=  ~STARTF_USESTDHANDLES; //
    });
#endif
    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
    QString path = env.value("PATH");
    QStringList pathAdded;
    pathAdded.append(binDirs);
    pathAdded.append(pSettings->dirs().appDir());
    if (!path.isEmpty()) {
        path= pathAdded.join(PATH_SEPARATOR) + PATH_SEPARATOR + path;
    } else {
        path = pathAdded.join(PATH_SEPARATOR);
    }
    env.insert("PATH",path);
    process.setProcessEnvironment(env);
    process.startDetached();
}

void MainWindow::onAutoSaveTimeout()
{
    if (mQuitting)
        return;
    if (!pSettings->editor().enableAutoSave())
        return;
    int updateCount = 0;
    switch (pSettings->editor().autoSaveTarget()) {
    case astCurrentFile: {
        Editor *e = mEditorList->getEditor();
        doAutoSave(e);
        updateCount++;
    }
        break;
    case astAllOpennedFiles:
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor *e = (*mEditorList)[i];
            doAutoSave(e);
            updateCount++;
        }
        break;
    case astAllProjectFiles:
        if (!mProject)
            return;
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor *e = (*mEditorList)[i];
            if (!e->inProject())
                return;
            doAutoSave(e);
            updateCount++;
        }
        //todo: auto save project files
        break;
    }
    updateStatusbarMessage(tr("%1 files autosaved").arg(updateCount));
}

void MainWindow::onWatchViewContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(ui->actionAdd_Watch);
    menu.addAction(ui->actionRemove_Watch);
    menu.addAction(ui->actionRemove_All_Watches);
    menu.addAction(ui->actionModify_Watch);
    menu.exec(ui->watchView->mapToGlobal(pos));
}

void MainWindow::onTableIssuesContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mTableIssuesCopyAction);
    menu.addAction(mTableIssuesCopyAllAction);
    menu.addSeparator();
    menu.addAction(mTableIssuesClearAction);
    menu.exec(ui->tableIssues->mapToGlobal(pos));
}

void MainWindow::onSearchViewContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mSearchViewClearAction);
    menu.addAction(mSearchViewClearAllAction);
    menu.exec(ui->searchHistoryPanel->mapToGlobal(pos));
}

void MainWindow::onBreakpointsViewContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mBreakpointViewPropertyAction);
    menu.addAction(mBreakpointViewRemoveAllAction);
    menu.addAction(mBreakpointViewRemoveAction);
    mBreakpointViewPropertyAction->setEnabled(ui->tblBreakpoints->currentIndex().isValid());
    mBreakpointViewRemoveAction->setEnabled(ui->tblBreakpoints->currentIndex().isValid());
    menu.exec(ui->tblBreakpoints->mapToGlobal(pos));
}

void MainWindow::onProjectViewContextMenu(const QPoint &pos)
{
    if (!mProject)
        return;
    bool onFolder = false;
    bool onUnit = false;
    bool onRoot = false;
    bool folderEmpty = false;
    bool multiSelection = ui->projectView->selectionModel()->selectedRows().count()>1;
    int unitIndex = -1;
    QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->selectionModel()->currentIndex());
    if (current.isValid() && mProject) {
        ProjectModelNode * node = static_cast<ProjectModelNode*>(current.internalPointer());
        PProjectModelNode pNode = mProject->pointerToNode(node);
        if (pNode) {
            unitIndex = pNode->unitIndex;
            onFolder = (unitIndex<0);
            onUnit = (unitIndex >= 0);
            onRoot = false;
            if (onFolder && !onRoot) {
                folderEmpty = pNode->children.isEmpty();
            }
        } else {
            onFolder = true;
            onRoot = true;
        }
    }
    GitManager vcsManager;
    QString branch;
    bool hasRepository = vcsManager.hasRepository(mProject->folder(),branch);

    QMenu menu(this);
    QMenu vcsMenu(this);
    updateProjectActions();
    menu.addAction(ui->actionProject_New_File);
    menu.addAction(ui->actionNew_Class);
    menu.addAction(ui->actionNew_Header);
    menu.addAction(ui->actionAdd_to_project);
    if (!onFolder) {
        menu.addAction(ui->actionRemove_from_project);
    }
    if (onUnit && !multiSelection) {
        menu.addAction(mProject_Rename_Unit);
    }
    menu.addSeparator();
    if (pSettings->vcs().gitOk()) {
        if (hasRepository) {
            menu.addMenu(&vcsMenu);
        } else {
            ui->actionGit_Create_Repository->setEnabled(true);
            menu.addAction(ui->actionGit_Create_Repository);
        }
        menu.addSeparator();
    }
    if (onFolder && mProject->modelType()==ProjectModelType::Custom) {
        menu.addAction(mProject_Add_Folder);
        if (!onRoot) {
            menu.addAction(mProject_Rename_Folder);
            if (folderEmpty) {
                menu.addAction(mProject_Remove_Folder);
            }
        }
        menu.addSeparator();
    }
    menu.addAction(ui->actionProject_Open_Folder_In_Explorer);
    menu.addAction(ui->actionProject_Open_In_Terminal);
    menu.addSeparator();
    if (mProject->modelType() == ProjectModelType::Custom) {
        menu.addAction(mProject_SwitchFileSystemViewMode);
    } else {
        menu.addAction(mProject_SwitchCustomViewMode);
    }
    menu.addAction(ui->actionProject_options);
    menu.addSeparator();
    menu.addAction(ui->actionClose_Project);

    if (pSettings->vcs().gitOk() && hasRepository) {
        mProject->model()->iconProvider()->update();
        vcsMenu.setTitle(tr("Version Control"));
        if (ui->projectView->selectionModel()->hasSelection()) {
            bool shouldAdd = true;
            foreach (const QModelIndex& index, ui->projectView->selectionModel()->selectedRows()) {
                if (!index.isValid()) {
                    shouldAdd=false;
                    break;
                }
                QModelIndex realIndex = mProjectProxyModel->mapToSource(index);
                ProjectModelNode * node = static_cast<ProjectModelNode*>(realIndex.internalPointer());
                if (!node || node->unitIndex<0) {
                    shouldAdd=false;
                    break;
                }
                PProjectUnit pUnit=mProject->units()[node->unitIndex];
                if (mProject->model()->iconProvider()->VCSRepository()->isFileInRepository(
                            pUnit->fileName()
                            )
                        &&
                        !mProject->model()->iconProvider()->VCSRepository()->isFileConflicting(
                                                    pUnit->fileName()
                                                    )) {
                    shouldAdd=false;
                    break;
                }
            }
            if (shouldAdd)
                vcsMenu.addAction(ui->actionGit_Add_Files);
        }
        vcsMenu.addAction(ui->actionGit_Remotes);
        vcsMenu.addAction(ui->actionGit_Log);
        vcsMenu.addAction(ui->actionGit_Branch);
        vcsMenu.addAction(ui->actionGit_Merge);
        vcsMenu.addAction(ui->actionGit_Commit);
        vcsMenu.addAction(ui->actionGit_Restore);

        bool canBranch = !mProject->model()->iconProvider()->VCSRepository()->hasChangedFiles()
                && !mProject->model()->iconProvider()->VCSRepository()->hasStagedFiles();
        ui->actionGit_Branch->setEnabled(canBranch);
        ui->actionGit_Merge->setEnabled(canBranch);
        ui->actionGit_Commit->setEnabled(true);
        ui->actionGit_Remotes->setEnabled(true);
        ui->actionGit_Log->setEnabled(true);
        ui->actionGit_Restore->setEnabled(true);

//        vcsMenu.addAction(ui->actionGit_Reset);
//        vcsMenu.addAction(ui->actionGit_Revert);
//        ui->actionGit_Reset->setEnabled(true);
//        ui->actionGit_Revert->setEnabled(true);
    }
    menu.exec(ui->projectView->mapToGlobal(pos));
}

void MainWindow::onClassBrowserContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    bool canGoto = false;
    QModelIndex index = ui->classBrowser->currentIndex();
    if (index.isValid()) {
        ClassBrowserNode * node = static_cast<ClassBrowserNode*>(index.internalPointer());
        if (node) {
            PStatement statement = node->statement;
            if (statement) {
                canGoto = true;
            }
        }
    }
    mClassBrowser_goto_declaration->setEnabled(canGoto);
    mClassBrowser_goto_definition->setEnabled(canGoto);
    menu.addAction(mClassBrowser_goto_declaration);
    menu.addAction(mClassBrowser_goto_definition);
    menu.addSeparator();
    menu.addAction(mClassBrowser_Sort_By_Name);
    menu.addAction(mClassBrowser_Sort_By_Type);
    menu.addAction(mClassBrowser_Show_Inherited);

    menu.exec(ui->projectView->mapToGlobal(pos));
}

void MainWindow::onDebugConsoleContextMenu(const QPoint &pos)
{
    QMenu menu(this);

    bool oldBlock = mDebugConsole_ShowDetailLog->blockSignals(true);
    mDebugConsole_ShowDetailLog->setChecked(pSettings->debugger().showDetailLog());
    mDebugConsole_ShowDetailLog->blockSignals(oldBlock);

    menu.addAction(mDebugConsole_Copy);
    menu.addAction(mDebugConsole_Paste);
    menu.addAction(mDebugConsole_SelectAll);
    menu.addAction(mDebugConsole_Clear);
    menu.addSeparator();
    menu.addAction(mDebugConsole_ShowDetailLog);
    menu.exec(ui->debugConsole->mapToGlobal(pos));
}

void MainWindow::onFileEncodingContextMenu(const QPoint &pos)
{
    mMenuEncoding->exec(mFileEncodingStatus->mapToGlobal(pos));
}

void MainWindow::onFilesViewContextMenu(const QPoint &pos)
{
    GitManager vcsManager;
    QString branch;
    bool hasRepository = vcsManager.hasRepository(pSettings->environment().currentFolder(),branch);
    QMenu menu(this);
    QMenu vcsMenu(this);
    menu.addAction(ui->actionOpen_Folder);
    menu.addSeparator();
    menu.addAction(mFilesView_CreateFolder);
    menu.addAction(mFilesView_CreateFile);
    menu.addAction(mFilesView_RemoveFile);
    menu.addAction(mFilesView_Rename);
    menu.addSeparator();
    if (pSettings->vcs().gitOk()) {
        if (hasRepository) {
            menu.addMenu(&vcsMenu);
        } else {
            ui->actionGit_Create_Repository->setEnabled(true);
            menu.addAction(ui->actionGit_Create_Repository);
        }
        menu.addSeparator();
    }
    menu.addAction(mFilesView_Open);
    menu.addAction(mFilesView_OpenWithExternal);
    menu.addSeparator();
    menu.addAction(mFilesView_OpenInTerminal);
    menu.addAction(mFilesView_OpenInExplorer);
    menu.addSeparator();
    menu.addAction(ui->actionFilesView_Hide_Non_Support_Files);
    QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
    QFileInfo info(path);
    mFilesView_Open->setEnabled(info.isFile());
    mFilesView_OpenWithExternal->setEnabled(info.isFile());
    mFilesView_OpenInTerminal->setEnabled(!path.isEmpty());
    mFilesView_OpenInExplorer->setEnabled(!path.isEmpty());
    mFilesView_Rename->setEnabled(!path.isEmpty());
    mFilesView_RemoveFile->setEnabled(!path.isEmpty() || !ui->treeFiles->selectionModel()->selectedRows().isEmpty());

    if (pSettings->vcs().gitOk() && hasRepository) {
        mFileSystemModelIconProvider.update();
        vcsMenu.setTitle(tr("Version Control"));
        if (ui->treeFiles->selectionModel()->hasSelection()) {
            bool shouldAdd = true;
            foreach (const QModelIndex& index, ui->treeFiles->selectionModel()->selectedRows()) {
                if (mFileSystemModelIconProvider.VCSRepository()->isFileInRepository(
                            mFileSystemModel.fileInfo(index)
                            ) &&
                        ! mFileSystemModelIconProvider.VCSRepository()->isFileConflicting(
                            mFileSystemModel.fileInfo(index)
                            )
                        ) {
                    shouldAdd=false;
                    break;
                }
            }
            if (shouldAdd)
                vcsMenu.addAction(ui->actionGit_Add_Files);
        }
        vcsMenu.addAction(ui->actionGit_Remotes);
        vcsMenu.addAction(ui->actionGit_Log);
        vcsMenu.addAction(ui->actionGit_Branch);
        vcsMenu.addAction(ui->actionGit_Merge);
        vcsMenu.addAction(ui->actionGit_Commit);
        vcsMenu.addAction(ui->actionGit_Restore);

        bool canBranch = !mFileSystemModelIconProvider.VCSRepository()->hasChangedFiles()
                && !mFileSystemModelIconProvider.VCSRepository()->hasStagedFiles();
        ui->actionGit_Branch->setEnabled(canBranch);
        ui->actionGit_Merge->setEnabled(canBranch);
        ui->actionGit_Log->setEnabled(true);
        ui->actionGit_Remotes->setEnabled(true);
        ui->actionGit_Commit->setEnabled(true);
        ui->actionGit_Restore->setEnabled(true);

//        vcsMenu.addAction(ui->actionGit_Reset);
//        vcsMenu.addAction(ui->actionGit_Revert);
//        ui->actionGit_Reset->setEnabled(true);
//        ui->actionGit_Revert->setEnabled(true);
    }
    menu.exec(ui->treeFiles->mapToGlobal(pos));
}

void MainWindow::onLstProblemSetContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    QModelIndex idx = ui->lstProblemSet->currentIndex();
    mProblem_Properties->setEnabled(idx.isValid());
    if (idx.isValid()) {
        POJProblem problem = mOJProblemSetModel.problem(idx.row());
        QMenu * menuSetAnswer = new QMenu(&menu);
        QActionGroup *actionGroup = new QActionGroup(menuSetAnswer);
        bool answerFound=false;
        menuSetAnswer->setTitle(tr("Set answer to..."));
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor *e = (*mEditorList)[i];
            QString filename = e->filename();
            QAction* action = new QAction(filename,menuSetAnswer);
            action->setCheckable(true);
            action->setActionGroup(actionGroup);

            if (filename.compare(problem->answerProgram, PATH_SENSITIVITY)==0) {
                action->setChecked(true);
                answerFound = true;
            }
            menuSetAnswer->addAction(action);
        }
        if (!answerFound && !problem->answerProgram.isEmpty()) {
            QAction* action = new QAction(problem->answerProgram,menuSetAnswer);
            action->setCheckable(true);
            action->setChecked(true);
            action->setActionGroup(actionGroup);
            menuSetAnswer->addAction(action);
        }
        connect(actionGroup, &QActionGroup::triggered,
                [problem,this](QAction* action) {
            if (action->text().compare(problem->answerProgram, PATH_SENSITIVITY)
                    !=0)
                problem->answerProgram = action->text();
            else
                problem->answerProgram = "";
            if (problem == mOJProblemModel.problem()) {
                ui->btnOpenProblemAnswer->setEnabled(!problem->answerProgram.isEmpty());
            }
        });
        QAction * action = new QAction(tr("select other file..."),menuSetAnswer);
        connect(action, &QAction::triggered,
                [problem,this](){
            QString filename = QFileDialog::getOpenFileName(
                        this,
                        tr("Select Answer Source File"),
                        QString(),
                        tr("C/C++ Source Files (*.c *.cpp *.cc *.cxx)"),
                        nullptr);
            if (!filename.isEmpty()) {
                QDir::setCurrent(extractFileDir(filename));
                problem->answerProgram = filename;
                if (problem == mOJProblemModel.problem()) {
                    ui->btnOpenProblemAnswer->setEnabled(!problem->answerProgram.isEmpty());
                }
            }
        });
        menuSetAnswer->addAction(action);
        menu.addMenu(menuSetAnswer);
        mProblem_OpenSource->setEnabled(!problem->answerProgram.isEmpty());
    }
    menu.addAction(mProblem_OpenSource);
    menu.addAction(mProblem_Properties);
    menu.exec(ui->lstProblemSet->mapToGlobal(pos));
}

void MainWindow::onTableProblemCasesContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mProblem_batchSetCases);
    menu.addSeparator();
    QModelIndex idx = ui->tblProblemCases->currentIndex();
    menu.addAction(mProblem_RunAllCases);
    menu.addAction(mProblem_RunCurrentCase);
    mProblem_RunAllCases->setEnabled(mOJProblemModel.count()>0);
    mProblem_RunCurrentCase->setEnabled(idx.isValid());
    menu.exec(ui->tblProblemCases->mapToGlobal(pos));
}

void MainWindow::onToolsOutputContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    menu.addAction(mToolsOutput_Copy);
    menu.addAction(mToolsOutput_SelectAll);
    menu.addSeparator();
    menu.addAction(mToolsOutput_Clear);
    menu.exec(ui->txtToolsOutput->mapToGlobal(pos));
}

void MainWindow::onProblemSetIndexChanged(const QModelIndex &current, const QModelIndex &/* previous */)
{
    QModelIndex idx = current;
    if (!idx.isValid()) {
        ui->btnRemoveProblem->setEnabled(false);
        mOJProblemModel.setProblem(nullptr);
        ui->txtProblemCaseExpected->clear();
        ui->txtProblemCaseInput->clear();
        ui->txtProblemCaseOutput->clear();
        ui->tabProblem->setEnabled(false);
        ui->lblProblem->clear();
        ui->lblProblem->setToolTip("");
        ui->tabProblem->setEnabled(false);
    } else {
        ui->btnRemoveProblem->setEnabled(true);
        POJProblem problem = mOJProblemSetModel.problem(idx.row());
        if (problem && !problem->answerProgram.isEmpty()) {
            Editor * editor =editorList()->getEditorByFilename(problem->answerProgram);
            if (editor)
                editor->activate();
        }
        mOJProblemModel.setProblem(problem);
        updateProblemTitle();
        if (mOJProblemModel.count()>0) {
            ui->tblProblemCases->setCurrentIndex(mOJProblemModel.index(0,0));
        } else {
            onProblemCaseIndexChanged(QModelIndex(),QModelIndex());
        }
        stretchMessagesPanel(true);
        ui->tabMessages->setCurrentWidget(ui->tabProblem);
        ui->tabProblem->setEnabled(true);
        ui->btnOpenProblemAnswer->setEnabled(!problem->answerProgram.isEmpty());
    }
}

void MainWindow::onProblemCaseIndexChanged(const QModelIndex &current, const QModelIndex &previous)
{
    QModelIndex idx = current;
    if (previous.isValid()) {
        POJProblemCase problemCase = mOJProblemModel.getCase(previous.row());
        problemCase->input = ui->txtProblemCaseInput->toPlainText();
        problemCase->expected = ui->txtProblemCaseExpected->toPlainText();
    }
    if (idx.isValid()) {
        POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
        if (problemCase) {
            ui->btnProblemCaseInputFileName->setEnabled(false);
            ui->btnRemoveProblemCase->setEnabled(true);
            ui->btnProblemCaseInputFileName->setEnabled(true);
            fillProblemCaseInputAndExpected(problemCase);
            ui->txtProblemCaseOutput->clear();
            ui->txtProblemCaseOutput->setPlainText(problemCase->output);
            updateProblemCaseOutput(problemCase);

            return;
        }
    }
    ui->btnProblemCaseClearInputFileName->setVisible(false);
    ui->btnProblemCaseInputFileName->setEnabled(false);
    ui->txtProblemCaseInputFileName->clear();
    ui->txtProblemCaseInputFileName->setToolTip("");

    ui->btnProblemCaseClearExpectedOutputFileName->setVisible(false);
    ui->btnProblemCaseExpectedOutputFileName->setEnabled(false);
    ui->txtProblemCaseExpectedOutputFileName->clear();
    ui->txtProblemCaseExpectedOutputFileName->setToolTip("");

    ui->btnRemoveProblemCase->setEnabled(false);
    ui->txtProblemCaseInputFileName->clear();
    ui->btnProblemCaseInputFileName->setEnabled(false);
    ui->txtProblemCaseInput->clear();
    ui->txtProblemCaseInput->setReadOnly(true);
    ui->txtProblemCaseExpected->clear();
    ui->txtProblemCaseExpected->setReadOnly(true);
    ui->txtProblemCaseOutput->clear();

    ui->lblProblemCaseExpected->clear();
    ui->lblProblemCaseOutput->clear();
    ui->lblProblemCaseInput->clear();
}

void MainWindow::onProblemNameChanged(int index)
{
    QModelIndex idx = ui->lstProblemSet->currentIndex();
    if (idx.isValid() && index == idx.row()) {
        updateProblemTitle();
    }
}

void MainWindow::onProblemRunCurrentCase()
{
    if (!ui->tblProblemCases->currentIndex().isValid())
        return;
    showHideMessagesTab(ui->tabProblem,ui->actionProblem);
    applyCurrentProblemCaseChanges();
    runExecutable(RunType::CurrentProblemCase);
}

void MainWindow::onProblemBatchSetCases()
{
    showHideMessagesTab(ui->tabProblem,ui->actionProblem);
    if (mOJProblemModel.count()>0 && QMessageBox::question(this,tr("Batch Set Cases"),
                              tr("This operation will remove all cases for the current problem.")
                              +"<br />"
                              +tr("Do you really want to do that?"),
                              QMessageBox::Yes| QMessageBox::No,
                              QMessageBox::No)!=QMessageBox::Yes)
        return;
    QString folder = QDir::currentPath();
    if (!mOJProblemSetModel.exportFilename().isEmpty())
        folder = extractFileDir(mOJProblemSetModel.exportFilename());
    QStringList files = QFileDialog::getOpenFileNames(
                this,
                tr("Choose input files"),
                folder,
                tr("Input data files (*.in)"));
    if (files.isEmpty())
        return;
    mOJProblemModel.removeCases();
    foreach (const QString& filename, files) {
        POJProblemCase problemCase = std::make_shared<OJProblemCase>();
        problemCase->name = QFileInfo(filename).baseName();
        problemCase->testState = ProblemCaseTestState::NotTested;
        problemCase->inputFileName = filename;
        QString expectedFileName;
        expectedFileName = filename.mid(0,filename.length()-2)+"ans";
        if (fileExists(expectedFileName)) {
            problemCase->expectedOutputFileName = expectedFileName;
        } else {
            expectedFileName = filename.mid(0,filename.length()-2)+"out";
            if (fileExists(expectedFileName))
                problemCase->expectedOutputFileName = expectedFileName;
        }
        mOJProblemModel.addCase(problemCase);
    }
}

void MainWindow::onNewProblemConnection()
{
    QTcpSocket* clientConnection = mTcpServer.nextPendingConnection();

    connect(clientConnection, &QAbstractSocket::disconnected,
            clientConnection, &QObject::deleteLater);
    QByteArray content;
    int unreadCount = 0;
    while (clientConnection->state() == QTcpSocket::ConnectedState) {
        clientConnection->waitForReadyRead(100);
        QByteArray readed = clientConnection->readAll();
        if (readed.isEmpty()) {
            unreadCount ++;
            if (!content.isEmpty() || unreadCount>30)
                break;
        } else {
            unreadCount = 0;
        }
        content += readed;
    }
    content += clientConnection->readAll();
    clientConnection->write("HTTP/1.1 200 OK");
    clientConnection->disconnectFromHost();
//    qDebug()<<"---------";
//    qDebug()<<content;
    content = getHTTPBody(content);
//    qDebug()<<"*********";
//    qDebug()<<content;
    if (content.isEmpty()) {
        return;
    }
    QJsonParseError error;
    QJsonDocument doc = QJsonDocument::fromJson(content,&error);
    if (error.error!=QJsonParseError::NoError) {
        qDebug()<<"Read http content failed!";
        qDebug()<<error.errorString();
        return;
    }
    QJsonObject obj=doc.object();
    QString name = obj["name"].toString();
    if (!mOJProblemSetModel.problemNameUsed(name)) {
        POJProblem problem = std::make_shared<OJProblem>();
        problem->name = name;
        problem->url = obj["url"].toString();
        QJsonArray caseArray = obj["tests"].toArray();
        foreach ( const QJsonValue& val, caseArray) {
            QJsonObject caseObj = val.toObject();
            POJProblemCase problemCase = std::make_shared<OJProblemCase>();
            problemCase->testState = ProblemCaseTestState::NotTested;
            problemCase->name = tr("Problem Case %1").arg(problem->cases.count()+1);
            problemCase->input = caseObj["input"].toString();
            problemCase->expected = caseObj["output"].toString();
            problem->cases.append(problemCase);
        }
        mOJProblemSetModel.addProblem(problem);
        ui->tabExplorer->setCurrentWidget(ui->tabProblemSet);
        ui->lstProblemSet->setCurrentIndex(mOJProblemSetModel.index(
                                               mOJProblemSetModel.count()-1
                                               ,0));
        if (isMinimized())
            showNormal();
        raise(); // for mac OS?
        activateWindow();
    }
}

void MainWindow::updateProblemTitle()
{
    ui->lblProblem->setText(mOJProblemModel.getTitle());
    ui->lblProblem->setToolTip(mOJProblemModel.getTooltip());
}

void MainWindow::onEditorClosed()
{
    if (mQuitting)
        return;
    updateEditorActions();
    updateAppTitle();
}

void MainWindow::onToolsOutputClear()
{
    ui->txtToolsOutput->clear();
}

void MainWindow::onToolsOutputCopy()
{
    ui->txtToolsOutput->copy();
}

void MainWindow::onToolsOutputSelectAll()
{
    ui->txtToolsOutput->selectAll();
}

void MainWindow::onShowInsertCodeSnippetMenu()
{
    mMenuInsertCodeSnippet->clear();
    QList<PCodeSnippet> snippets;
    foreach (const PCodeSnippet& snippet, mCodeSnippetManager->snippets()) {
        if (snippet->section>=0 && !snippet->caption.isEmpty())
            snippets.append(snippet);
    }
    if (snippets.isEmpty())
        return;
    std::sort(snippets.begin(),snippets.end(),[](const PCodeSnippet& s1, const PCodeSnippet& s2){
        return s1->section<s2->section;
    });
    int section = 0;
    int sectionCount = 0;
    int count = 0;
    bool sectionNotEmpty = false;
    foreach (const PCodeSnippet& snippet, snippets) {
        if (snippet->section>section && sectionCount<6) {
            section = snippet->section;
            sectionCount++;
            if (sectionNotEmpty)
                mMenuInsertCodeSnippet->addSeparator();
        }
        QAction * action = mMenuInsertCodeSnippet->addAction(snippet->caption);
        connect(action, &QAction::triggered,
                [snippet,this](){
            Editor * editor = mEditorList->getEditor();
            if (editor) {
                editor->insertCodeSnippet(snippet->code);
            }
        });
        sectionNotEmpty = true;
        count++;
        if (count>15)
            break;
    }

}

void MainWindow::onFilesViewCreateFolder()
{
    QModelIndex index = ui->treeFiles->currentIndex();
    QDir dir;
    if (index.isValid()
            && ui->treeFiles->selectionModel()->isSelected(index)) {
        if (mFileSystemModel.isDir(index))
            dir = QDir(mFileSystemModel.fileInfo(index).absoluteFilePath());
        else
            dir = mFileSystemModel.fileInfo(index).absoluteDir();
        ui->treeFiles->expand(index);
    } else {
        dir = mFileSystemModel.rootDirectory();
    }
    QString folderName = tr("New Folder");
    int count = 0;
    while (dir.exists(folderName)) {
        count++;
        folderName = tr("New Folder %1").arg(count);
    }
    dir.mkdir(dir.filePath(folderName));
}

void MainWindow::onFilesViewCreateFile()
{
    QModelIndex index = ui->treeFiles->currentIndex();
    QDir dir;
    if (index.isValid()
            && ui->treeFiles->selectionModel()->isSelected(index)) {
        if (mFileSystemModel.isDir(index))
            dir = QDir(mFileSystemModel.fileInfo(index).absoluteFilePath());
        else
            dir = mFileSystemModel.fileInfo(index).absoluteDir();
        ui->treeFiles->expand(index);
    } else {
        dir = mFileSystemModel.rootDirectory();
    }
    QString suffix;
    if (pSettings->editor().defaultFileCpp())
        suffix=".cpp";
    else
        suffix=".c";
    QString fileName = tr("Untitled")+suffix;
    int count = 0;
    while (dir.exists(fileName)) {
        count++;
        fileName = tr("Untitled %1").arg(count)+suffix;
    }
    QFile file(dir.filePath(fileName));
    file.open(QFile::NewOnly);
    QModelIndex newIndex = mFileSystemModel.index(fileName);
    ui->treeFiles->setCurrentIndex(newIndex);
}


void MainWindow::onFilesViewRemoveFiles()
{
    QModelIndexList indexList = ui->treeFiles->selectionModel()->selectedRows();
    if (indexList.isEmpty()) {
        QModelIndex index = ui->treeFiles->currentIndex();
        if (QMessageBox::question(ui->treeFiles,tr("Delete")
                                  ,tr("Do you really want to delete %1?").arg(mFileSystemModel.fileName(index)),
                QMessageBox::Yes | QMessageBox::No, QMessageBox::No)!=QMessageBox::Yes)
            return;
        doFilesViewRemoveFile(index);
    } else {
        if (QMessageBox::question(ui->treeFiles,tr("Delete")
                                  ,tr("Do you really want to delete %1 files?").arg(indexList.count()),
                QMessageBox::Yes | QMessageBox::No, QMessageBox::No)!=QMessageBox::Yes)
            return;
        foreach (const QModelIndex& index, indexList) {
            doFilesViewRemoveFile(index);
        }
    }
}

void MainWindow::onFilesViewRename() {
    QModelIndex index = ui->treeFiles->currentIndex();
    if (!index.isValid())
        return ;
    ui->treeFiles->edit(index);
}

void MainWindow::onProblemProperties()
{
    showHideMessagesTab(ui->tabProblem,ui->actionProblem);
    QModelIndex idx = ui->lstProblemSet->currentIndex();
    if (!idx.isValid())
        return;
    POJProblem problem=mOJProblemSetModel.problem(idx.row());
    if (!problem)
        return;
    OJProblemPropertyWidget dialog;
    dialog.setName(problem->name);
    dialog.setUrl(problem->url);
    dialog.setDescription(problem->description);
    if (dialog.exec() == QDialog::Accepted) {
        problem->url = dialog.url();
        problem->description = dialog.description();
        if (problem == mOJProblemModel.problem()) {
            updateProblemTitle();
        }
    }
}

void MainWindow::onProblemOpenSource()
{
    QModelIndex idx = ui->lstProblemSet->currentIndex();
    if (!idx.isValid())
        return;
    POJProblem problem=mOJProblemSetModel.problem(idx.row());
    if (!problem)
        return;
    if (!problem->answerProgram.isEmpty()) {
        Editor * editor = editorList()->getEditorByFilename(problem->answerProgram);
        if (editor) {
            editor->activate();
        }
    }
}

void MainWindow::onLableProblemSetContextMenuRequested()
{
    QString newName = QInputDialog::getText(
                ui->lblProblemSet,
                tr("Set Problem Set Name"),
                tr("Problem Set Name:"),
                QLineEdit::Normal,
                ui->lblProblemSet->text());
    newName = newName.trimmed();
    if (!newName.isEmpty()){
        mOJProblemSetModel.rename(newName);
        ui->lblProblemSet->setText(mOJProblemSetModel.name());
    }
}

void MainWindow::onBookmarkRemove()
{
    QModelIndex index = ui->tableBookmark->currentIndex();
    if (index.isValid()) {
        PBookmark bookmark = mBookmarkModel->bookmark(index.row());
        if (bookmark) {
            Editor * editor = mEditorList->getOpenedEditorByFilename(bookmark->filename);
            if (editor) {
                editor->removeBookmark(bookmark->line);
            } else {
                mBookmarkModel->removeBookmarkAt(index.row());
            }
        }
    }
}

void MainWindow::onBookmarkRemoveAll()
{
    mBookmarkModel->clear();
    for (int i=0;i<mEditorList->pageCount();i++) {
        Editor * editor = (*mEditorList)[i];
        editor->clearBookmarks();
    }
}

void MainWindow::onBookmarkModify()
{
    QModelIndex index = ui->tableBookmark->currentIndex();
    if (index.isValid()) {
        PBookmark bookmark = mBookmarkModel->bookmark(index.row());
        if (bookmark) {
            QString desc = QInputDialog::getText(ui->tableBookmark,tr("Bookmark Description"),
                                             tr("Description:"),QLineEdit::Normal,
                                             bookmark->description);
            desc = desc.trimmed();
            mBookmarkModel->updateDescription(bookmark->filename,bookmark->line,desc);
        }
    }
}

void MainWindow::onDebugConsoleShowDetailLog()
{
    pSettings->debugger().setShowDetailLog(mDebugConsole_ShowDetailLog->isChecked());
    pSettings->debugger().save();
}

void MainWindow::onDebugConsolePaste()
{
    ui->debugConsole->paste();
}

void MainWindow::onDebugConsoleSelectAll()
{
    ui->debugConsole->selectAll();
}

void MainWindow::onDebugConsoleCopy()
{
    ui->debugConsole->copy();
}

void MainWindow::onDebugConsoleClear()
{
    ui->debugConsole->clear();
}

void MainWindow::onFilesViewOpenInExplorer()
{
    QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
    if (!path.isEmpty()) {
        QFileInfo info(path);
        if (info.isFile()){
            QDesktopServices::openUrl(
                        QUrl("file:///"+
                             includeTrailingPathDelimiter(info.path()),QUrl::TolerantMode));
        } else if (info.isDir()){
            QDesktopServices::openUrl(
                        QUrl("file:///"+
                             includeTrailingPathDelimiter(path),QUrl::TolerantMode));
        }
    }
}

void MainWindow::onFilesViewOpenInTerminal()
{
    QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
    if (!path.isEmpty()) {
        QFileInfo fileInfo(path);
#ifdef Q_OS_WIN
        openShell(fileInfo.path(),"cmd.exe",getDefaultCompilerSetBinDirs());
#else
        openShell(fileInfo.path(),pSettings->environment().terminalPath(),getDefaultCompilerSetBinDirs());
#endif
    }
}

void MainWindow::onFilesViewOpenWithExternal()
{
    QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
    if (!path.isEmpty() && QFileInfo(path).isFile()) {
        QDesktopServices::openUrl(QUrl::fromLocalFile(path));
    }
}

void MainWindow::onFilesViewOpen()
{
    QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
    if (!path.isEmpty() && QFileInfo(path).isFile()) {
        if (getFileType(path)==FileType::Project) {
            openProject(path);
        } else {
            openFile(path);
        }
    }
}

void MainWindow::onClassBrowserGotoDeclaration()
{
    on_classBrowser_doubleClicked(ui->classBrowser->currentIndex());
}

void MainWindow::onClassBrowserGotoDefinition()
{
    QModelIndex index = ui->classBrowser->currentIndex();
    if (!index.isValid())
        return ;
    ClassBrowserNode * node = static_cast<ClassBrowserNode*>(index.internalPointer());
    if (!node)
        return ;
    PStatement statement = node->statement;
    if (!statement) {
        return;
    }
    QString filename;
    int line;
    filename = statement->definitionFileName;
    line = statement->definitionLine;
    Editor* e = pMainWindow->editorList()->getEditorByFilename(filename);
    if (e) {
        e->setCaretPositionAndActivate(line,1);
    }
}

void MainWindow::onClassBrowserShowInherited()
{
    pSettings->ui().setClassBrowserShowInherited(mClassBrowser_Show_Inherited->isChecked());
    pSettings->ui().save();
    mClassBrowserModel.fillStatements();
}

void MainWindow::onClassBrowserSortByType()
{
    pSettings->ui().setClassBrowserSortType(mClassBrowser_Sort_By_Type->isChecked());
    pSettings->ui().save();
    mClassBrowserModel.fillStatements();
}

void MainWindow::onClassBrowserSortByName()
{
    pSettings->ui().setClassBrowserSortAlpha(mClassBrowser_Sort_By_Name->isChecked());
    pSettings->ui().save();
    mClassBrowserModel.fillStatements();
}

void MainWindow::onProjectSwitchCustomViewMode()
{
    mProject->setModelType(ProjectModelType::Custom);
}

void MainWindow::onProjectSwitchFileSystemViewMode()
{
    mProject->setModelType(ProjectModelType::FileSystem);
}

void MainWindow::onProjectRemoveFolder()
{
    if (!mProject)
        return;
    QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
    if (!current.isValid()) {
        return;
    }
    ProjectModelNode * node = static_cast<ProjectModelNode*>(current.internalPointer());
    PProjectModelNode folderNode =  mProject->pointerToNode(node);
    if (!folderNode)
        return;
    if (folderNode->unitIndex>=0)
        return;
    mProject->removeFolder(folderNode);
    mProject->saveOptions();

}

void MainWindow::onProjectRenameFolder()
{
    if (ui->projectView->currentIndex().isValid()) {
        ui->projectView->edit(ui->projectView->currentIndex());
    }
}

void MainWindow::onProjectAddFolder()
{
    if (!mProject)
        return;
    QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
    if (!current.isValid()) {
        return;
    }
    ProjectModelNode * node = static_cast<ProjectModelNode*>(current.internalPointer());
    PProjectModelNode folderNode =  mProject->pointerToNode(node);
    if (!folderNode)
        folderNode = mProject->rootNode();
    if (folderNode->unitIndex>=0)
        return;
    QString s=tr("New folder");
    bool ok;
    s = QInputDialog::getText(ui->projectView,
                          tr("Add Folder"),
                          tr("Folder name:"),
                          QLineEdit::Normal, s,
                          &ok).trimmed();
    if (ok && !s.isEmpty()) {
        QString path = mProject->getFolderPath(folderNode);
        if (path.isEmpty()) {
            mProject->addFolder(s);
        } else {
            mProject->addFolder(path + '/' +s);
        }
        mProject->saveOptions();
    }
}

void MainWindow::onProjectRenameUnit()
{
    if (ui->projectView->currentIndex().isValid()) {
        ui->projectView->edit(ui->projectView->currentIndex());
    }
}

void MainWindow::onBreakpointRemove()
{
    int index =ui->tblBreakpoints->selectionModel()->currentIndex().row();

    PBreakpoint breakpoint = debugger()->breakpointModel()->breakpoint(index);
    if (breakpoint) {
        Editor * e = mEditorList->getOpenedEditorByFilename(breakpoint->filename);
        if (e) {
            if (e->hasBreakpoint(breakpoint->line))
                e->toggleBreakpoint(breakpoint->line);
        } else {
            debugger()->breakpointModel()->removeBreakpoint(index);
        }
    }
}

void MainWindow::onBreakpointViewRemoveAll()
{
    pMainWindow->debugger()->deleteBreakpoints();
    for (int i=0;i<mEditorList->pageCount();i++) {
        Editor * e = (*(mEditorList))[i];
        if (e) {
            e->resetBreakpoints();
        }
    }
}

void MainWindow::onBreakpointViewProperty()
{
    int index =ui->tblBreakpoints->selectionModel()->currentIndex().row();

    PBreakpoint breakpoint = debugger()->breakpointModel()->breakpoint(
                index
                );
    if (breakpoint) {
        bool isOk;
        QString s=QInputDialog::getText(this,
                                  tr("Break point condition"),
                                  tr("Enter the condition of the breakpoint:"),
                                QLineEdit::Normal,
                                breakpoint->condition,&isOk);
        if (isOk) {
            pMainWindow->debugger()->setBreakPointCondition(index,s);
        }
    }
}

void MainWindow::onSearchViewClearAll()
{
    mSearchResultModel.clear();
}

void MainWindow::onSearchViewClear()
{
    int index = ui->cbSearchHistory->currentIndex();
    if (index>=0) {
        mSearchResultModel.removeSearchResults(index);
    }
}

void MainWindow::onTableIssuesClear()
{
    clearIssues();
}

void MainWindow::onTableIssuesCopyAll()
{
    QClipboard* clipboard=QGuiApplication::clipboard();
    QMimeData * mimeData = new QMimeData();
    mimeData->setText(ui->tableIssues->toTxt());
    mimeData->setHtml(ui->tableIssues->toHtml());
    clipboard->clear();
    clipboard->setMimeData(mimeData);
}

void MainWindow::onTableIssuesCopy()
{
    QModelIndex index = ui->tableIssues->selectionModel()->currentIndex();
    PCompileIssue issue = ui->tableIssues->issue(index);
    if (issue) {
        QClipboard* clipboard = QApplication::clipboard();
        clipboard->setText(issue->description);
    }
}

void MainWindow::onEditorContextMenu(const QPoint& pos)
{
    Editor * editor = mEditorList->getEditor();
    if (!editor)
        return;
    QMenu menu(this);
    BufferCoord p;
    mEditorContextMenuPos = pos;
    int line;
    if (editor->getPositionOfMouse(p)) {
        line=p.Line;
        //mouse on editing area
        menu.addAction(ui->actionCompile_Run);
        menu.addAction(ui->actionDebug);
        menu.addSeparator();
        menu.addAction(ui->actionGoto_Declaration);
        menu.addAction(ui->actionGoto_Definition);
        menu.addAction(ui->actionFind_references);

        menu.addSeparator();
        menu.addAction(ui->actionOpen_Containing_Folder);
        menu.addAction(ui->actionOpen_Terminal);
        menu.addAction(ui->actionLocate_in_Files_View);
        menu.addSeparator();
        menu.addAction(ui->actionReformat_Code);
        menu.addSeparator();
        menu.addAction(ui->actionCut);
        menu.addAction(ui->actionCopy);
        menu.addAction(ui->actionPaste);
        menu.addAction(ui->actionSelectAll);
        menu.addSeparator();
        menu.addAction(ui->actionAdd_Watch);
        menu.addAction(ui->actionToggle_Breakpoint);
        menu.addAction(ui->actionClear_all_breakpoints);
        menu.addSeparator();
        menu.addAction(ui->actionAdd_bookmark);
        menu.addAction(ui->actionRemove_Bookmark);
        menu.addAction(ui->actionModify_Bookmark_Description);
        menu.addSeparator();
        menu.addAction(ui->actionFile_Properties);

        //these actions needs parser
        ui->actionGoto_Declaration->setEnabled(!editor->parser()->parsing());
        ui->actionGoto_Definition->setEnabled(!editor->parser()->parsing());
        ui->actionFind_references->setEnabled(!editor->parser()->parsing());
    } else {
        //mouse on gutter

        if (!editor->getLineOfMouse(line))
            line=-1;
        menu.addAction(ui->actionToggle_Breakpoint);
        menu.addAction(ui->actionBreakpoint_property);
        menu.addAction(ui->actionClear_all_breakpoints);
        menu.addSeparator();
        menu.addAction(ui->actionAdd_bookmark);
        menu.addAction(ui->actionRemove_Bookmark);
        menu.addAction(ui->actionModify_Bookmark_Description);
    }
    ui->actionLocate_in_Files_View->setEnabled(!editor->isNew());
    ui->actionBreakpoint_property->setEnabled(editor->hasBreakpoint(line));
    ui->actionAdd_bookmark->setEnabled(
                line>=0 && editor->document()->count()>0
                && !editor->hasBookmark(line)
                );
    ui->actionRemove_Bookmark->setEnabled(editor->hasBookmark(line));
    ui->actionModify_Bookmark_Description->setEnabled(editor->hasBookmark(line));
    menu.exec(editor->viewport()->mapToGlobal(pos));
}

void MainWindow::onEditorRightTabContextMenu(const QPoint& pos)
{
    onEditorTabContextMenu(ui->EditorTabsRight,pos);
}

void MainWindow::onEditorLeftTabContextMenu(const QPoint& pos)
{
    onEditorTabContextMenu(ui->EditorTabsLeft,pos);
}


void MainWindow::onEditorTabContextMenu(QTabWidget* tabWidget, const QPoint &pos)
{
    int index = tabWidget->tabBar()->tabAt(pos);
    if (index<0)
        return;
    tabWidget->setCurrentIndex(index);
    QMenu menu(this);
    QTabBar* tabBar = tabWidget->tabBar();
    menu.addAction(ui->actionClose);
    menu.addAction(ui->actionClose_All);
    menu.addSeparator();
    menu.addAction(ui->actionOpen_Containing_Folder);
    menu.addAction(ui->actionOpen_Terminal);
    menu.addAction(ui->actionLocate_in_Files_View);
    menu.addSeparator();
    menu.addAction(ui->actionMove_To_Other_View);
    menu.addSeparator();
    menu.addAction(ui->actionFile_Properties);
    ui->actionMove_To_Other_View->setEnabled(
                tabWidget==ui->EditorTabsRight
                || tabWidget->count()>1
                );
    Editor * editor = dynamic_cast<Editor *>(tabWidget->widget(index));
    if (editor ) {
        ui->actionLocate_in_Files_View->setEnabled(!editor->isNew());
    }
    menu.exec(tabBar->mapToGlobal(pos));
}

void MainWindow::disableDebugActions()
{
    ui->actionInterrupt->setEnabled(false);
    ui->actionStep_Into->setEnabled(false);
    ui->actionStep_Over->setEnabled(false);
    ui->actionStep_Out->setEnabled(false);
    ui->actionRun_To_Cursor->setEnabled(false);
    ui->actionContinue->setEnabled(false);
    ui->cbEvaluate->setEnabled(false);
    ui->cbMemoryAddress->setEnabled(false);
    if (mCPUDialog) {
        mCPUDialog->updateButtonStates(false);
    }
}

void MainWindow::enableDebugActions()
{
    if (pSettings->debugger().useGDBServer())
        ui->actionInterrupt->setEnabled(mDebugger->inferiorRunning());
    ui->actionStep_Into->setEnabled(!mDebugger->inferiorRunning());
    ui->actionStep_Over->setEnabled(!mDebugger->inferiorRunning());
    ui->actionStep_Out->setEnabled(!mDebugger->inferiorRunning());
    ui->actionRun_To_Cursor->setEnabled(!mDebugger->inferiorRunning());
    ui->actionContinue->setEnabled(!mDebugger->inferiorRunning());
    ui->cbEvaluate->setEnabled(!mDebugger->inferiorRunning());
    ui->cbMemoryAddress->setEnabled(!mDebugger->inferiorRunning());
    if (mCPUDialog) {
        mCPUDialog->updateButtonStates(true);
    }
}

void MainWindow::onTodoParseStarted(const QString&)
{
    mTodoModel.clear();
}

void MainWindow::onTodoParsing(const QString& filename, int lineNo, int ch, const QString& line)
{
    mTodoModel.addItem(filename,lineNo,ch,line);
}

void MainWindow::onTodoParseFinished()
{

}

void MainWindow::prepareProjectForCompile()
{
    if (!mProject)
        return;
    if (!mProject->saveUnits())
        return;
    // Check if saves have been succesful
    for (int i=0; i<mEditorList->pageCount();i++) {
        Editor * e= (*(mEditorList))[i];
        if (e->inProject() && e->modified())
            return;
    }
    mProject->buildPrivateResource();
}

void MainWindow::closeProject(bool refreshEditor)
{
    // Stop executing program
    on_actionStop_Execution_triggered();

    // Only update file monitor once (and ignore updates)
    bool oldBlock= mFileSystemWatcher.blockSignals(true);
    {
        auto action = finally([&,this]{
            mFileSystemWatcher.blockSignals(oldBlock);
        });
        // TODO: should we save watches?
        if (mProject->modified()) {
            QString s;
            if (mProject->name().isEmpty()) {
                s = mProject->filename();
            } else {
                s = mProject->name();
            }
            if (mSystemTurnedOff) {
                mProject->saveAll();
            } else {
                int answer = QMessageBox::question(
                            this,
                            tr("Save project"),
                            tr("The project '%1' has modifications.").arg(s)
                            + "<br />"
                            + tr("Do you want to save it?"),
                            QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel,
                            QMessageBox::Yes);
                switch (answer) {
                case QMessageBox::Yes:
                    mProject->saveAll();
                    break;
                case QMessageBox::No:
                    mProject->setModified(false);
                    mProject->saveLayout();
                    break;
                case QMessageBox::Cancel:
                    mProject->saveLayout();
                    return;
                }
            }
        } else
            mProject->saveLayout(); // always save layout, but not when SaveAll has been called

        mClassBrowserModel.beginUpdate();
        {
            auto action2 = finally([this]{
                mClassBrowserModel.endUpdate();
            });
            // Remember it
            pSettings->history().addToOpenedProjects(mProject->filename());

            mEditorList->beginUpdate();
            {
                auto action3 = finally([this]{
                    mEditorList->endUpdate();
                });
                mProject.reset();

                if (!mQuitting && refreshEditor) {
                    //reset Class browsing
                    ui->tabExplorer->setCurrentWidget(ui->tabStructure);
                    Editor * e = mEditorList->getEditor();
                    updateClassBrowserForEditor(e);
                } else {
                    mClassBrowserModel.setParser(nullptr);
                    mClassBrowserModel.setCurrentFile("");
                }
            }
        }
        if (!mQuitting) {
            // Clear error browser
            clearIssues();
            updateProjectView();
        }
    }
}

void MainWindow::updateProjectView()
{
    if (mProject) {
        if (mProjectProxyModel->sourceModel()!=mProject->model()) {
            mProjectProxyModel->setSourceModel(mProject->model());
            mProjectProxyModel->sort(0);
            connect(mProject->model(), &ProjectModel::dataChanged,
                    this, &MainWindow::invalidateProjectProxyModel);
            connect(mProject->model(), &ProjectModel::rowsRemoved,
                    this, &MainWindow::invalidateProjectProxyModel);
            connect(mProject->model(), &ProjectModel::rowsInserted,
                    this, &MainWindow::invalidateProjectProxyModel);
            connect(mProject->model(), &QAbstractItemModel::modelReset,
                    ui->projectView,&QTreeView::expandAll);
        } else
            mProjectProxyModel->invalidate();
        ui->projectView->expandAll();
        stretchExplorerPanel(true);
        ui->tabProject->setVisible(true);
        ui->tabExplorer->setCurrentWidget(ui->tabProject);
    } else {
        // Clear project browser
        mProjectProxyModel->setSourceModel(nullptr);
        ui->tabProject->setVisible(false);
    }
    updateProjectActions();
}

void MainWindow::onFileChanged(const QString &path)
{
    if (mFilesChangedNotifying.contains(path))
        return;
    mFilesChangedNotifying.insert(path);
    Editor *e = mEditorList->getOpenedEditorByFilename(path);
    if (e) {
        if (fileExists(path)) {
            e->activate();
            if (QMessageBox::question(this,tr("File Changed"),
                                      tr("File '%1' was changed.").arg(path)+"<BR /><BR />" + tr("Reload its content from disk?"),
                                      QMessageBox::Yes|QMessageBox::No,
                                      QMessageBox::No) == QMessageBox::Yes) {
                try {
                    e->loadFile();
                } catch(FileError e) {
                    QMessageBox::critical(this,tr("Error"),e.reason());
                }
            } else {
                e->setModified(true);
            }
        } else {
            mFileSystemWatcher.removePath(path);
            if (QMessageBox::question(this,tr("File Changed"),
                                      tr("File '%1' was removed.").arg(path)+"<BR /><BR />" + tr("Keep it open?"),
                                      QMessageBox::Yes|QMessageBox::No,
                                      QMessageBox::Yes) == QMessageBox::No) {
                mEditorList->closeEditor(e);
            } else {
                e->setModified(true);
            }
        }
    }
    mFilesChangedNotifying.remove(path);
}

void MainWindow::onFilesViewPathChanged()
{
    QString filesPath = ui->cbFilesPath->currentText();
    QFileInfo fileInfo(filesPath);
    ui->cbFilesPath->blockSignals(true);
    if (fileInfo.exists() && fileInfo.isDir()) {
        setFilesViewRoot(filesPath);
    } else {
        ui->cbFilesPath->setCurrentText(pSettings->environment().currentFolder());
    }
    ui->cbFilesPath->blockSignals(false);
}

const std::shared_ptr<HeaderCompletionPopup> &MainWindow::headerCompletionPopup() const
{
    return mHeaderCompletionPopup;
}

const std::shared_ptr<FunctionTooltipWidget> &MainWindow::functionTip() const
{
    return mFunctionTip;
}

const std::shared_ptr<CodeCompletionPopup> &MainWindow::completionPopup() const
{
    return mCompletionPopup;
}

SearchDialog *MainWindow::searchDialog() const
{
    return mSearchDialog;
}

SearchResultModel *MainWindow::searchResultModel()
{
    return &mSearchResultModel;
}

EditorList *MainWindow::editorList() const
{
    return mEditorList;
}

Debugger *MainWindow::debugger() const
{
    return mDebugger;
}

CPUDialog *MainWindow::cpuDialog() const
{
    return mCPUDialog;
}


void MainWindow::on_actionNew_triggered()
{
    if (mProject) {
        if (QMessageBox::question(this,
                                  tr("New Project File?"),
                                  tr("Do you want to add the new file to the project?"),
                                  QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
            newProjectUnitFile();
            return;
        }
    }
    newEditor();
}

void MainWindow::on_EditorTabsLeft_tabCloseRequested(int index)
{
    Editor* editor = mEditorList->getEditor(index,ui->EditorTabsLeft);
    mEditorList->closeEditor(editor);
}

void MainWindow::on_EditorTabsRight_tabCloseRequested(int index)
{
    Editor* editor = mEditorList->getEditor(index,ui->EditorTabsRight);
    mEditorList->closeEditor(editor);
}

void MainWindow::on_actionOpen_triggered()
{
    try {
        QString selectedFileFilter;
        selectedFileFilter = pSystemConsts->defaultAllFileFilter();
        QStringList files = QFileDialog::getOpenFileNames(pMainWindow,
            tr("Open"), QString(), pSystemConsts->defaultFileFilters().join(";;"),
            &selectedFileFilter);
        if (!files.isEmpty()) {
            QDir::setCurrent(extractFileDir(files[0]));
        }
        openFiles(files);
    }  catch (FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }
}

void MainWindow::closeEvent(QCloseEvent *event) {
    mQuitting = true;
    if (!mShouldRemoveAllSettings) {
        Settings::UI& settings = pSettings->ui();
        settings.setMainWindowState(saveState());
        settings.setMainWindowGeometry(saveGeometry());
        settings.setBottomPanelIndex(ui->tabMessages->currentIndex());
        settings.setLeftPanelIndex(ui->tabExplorer->currentIndex());

        settings.setShowStatusBar(ui->actionStatus_Bar->isChecked());
        settings.setShowToolWindowBars(ui->actionTool_Window_Bars->isChecked());

        settings.setShowProject(ui->actionProject->isChecked());
        settings.setShowWatch(ui->actionWatch->isChecked());
        settings.setShowStructure(ui->actionStructure->isChecked());
        settings.setShowFiles(ui->actionFiles->isChecked());
        settings.setShowProblemSet(ui->actionProblem_Set->isChecked());

        settings.setShowIssues(ui->actionIssues->isChecked());
        settings.setShowCompileLog(ui->actionTools_Output->isChecked());
        settings.setShowDebug(ui->actionDebug_Window->isChecked());
        settings.setShowSearch(ui->actionSearch->isChecked());
        settings.setShowTODO(ui->actionTODO->isChecked());
        settings.setShowBookmark(ui->actionBookmark->isChecked());
        settings.setShowProblem(ui->actionProblem->isChecked());

        settings.setMessagesTabsSize(ui->tabMessages->currentSize());
        settings.setExplorerTabsSize(ui->tabExplorer->currentSize());
        settings.setShrinkExplorerTabs(ui->tabExplorer->isShrinked());
        settings.setShrinkMessagesTabs(ui->tabMessages->isShrinked());
        settings.save();

        //save current folder ( for files view )
        pSettings->environment().setDefaultOpenFolder(QDir::currentPath());
        pSettings->environment().save();
        try {
            mBookmarkModel->save(includeTrailingPathDelimiter(pSettings->dirs().config())
                             +DEV_BOOKMARK_FILE);
        } catch (FileError& e) {
            QMessageBox::warning(nullptr,
                             tr("Save Error"),
                             e.reason());
        }

        if (pSettings->debugger().autosaveBreakpoints()) {
            try {
                mDebugger->breakpointModel()->save(includeTrailingPathDelimiter(pSettings->dirs().config())
                                               +DEV_BREAKPOINTS_FILE);
            } catch (FileError& e) {
                QMessageBox::warning(nullptr,
                                 tr("Save Error"),
                                 e.reason());
            }
        } else
            removeFile(includeTrailingPathDelimiter(pSettings->dirs().config())
                          +DEV_BREAKPOINTS_FILE);
        if (pSettings->debugger().autosaveWatches()) {
            try {
                mDebugger->watchModel()->save(includeTrailingPathDelimiter(pSettings->dirs().config())
                                               +DEV_WATCH_FILE);
            } catch (FileError& e) {
                QMessageBox::warning(nullptr,
                                 tr("Save Error"),
                                 e.reason());
            }
        } else
            removeFile(includeTrailingPathDelimiter(pSettings->dirs().config())
                          +DEV_WATCH_FILE);

    }

    if (!mShouldRemoveAllSettings && pSettings->editor().autoLoadLastFiles()) {
        saveLastOpens();
    } else {
        //if don't save last open files, close project before editors, to save project openned editors;
        if (mProject) {
            closeProject(false);
        }
    }

    if (!mEditorList->closeAll(false)) {
        mQuitting = false;
        event->ignore();
        return ;
    }

    if (!mShouldRemoveAllSettings && pSettings->editor().autoLoadLastFiles()) {
        if (mProject) {
            closeProject(false);
        }
    }

    mTcpServer.close();
    mCompilerManager->stopAllRunners();
    mCompilerManager->stopCompile();
    mCompilerManager->stopRun();
    if (!mShouldRemoveAllSettings)
        mSymbolUsageManager->save();

    if (mCPUDialog!=nullptr)
        cleanUpCPUDialog();
    event->accept();
    return;
}

void MainWindow::showEvent(QShowEvent *)
{
    applySettings();
    const Settings::UI& settings = pSettings->ui();
    ui->tabMessages->setCurrentIndex(settings.bottomPanelIndex());
    ui->tabExplorer->setCurrentIndex(settings.leftPanelIndex());
}

void MainWindow::hideEvent(QHideEvent *)
{
    Settings::UI& settings = pSettings->ui();
    settings.setBottomPanelIndex(ui->tabMessages->currentIndex());
    settings.setLeftPanelIndex(ui->tabExplorer->currentIndex());
}

bool MainWindow::event(QEvent *event)
{
    if (event->type()==DPI_CHANGED_EVENT) {
        applySettings();
        event->accept();
        return true;
    }
    return QMainWindow::event(event);
}

//void MainWindow::dragEnterEvent(QDragEnterEvent *event)
//{
//    if (event->mimeData()->hasUrls()){
//        event->acceptProposedAction();
//    }
//}

//void MainWindow::dropEvent(QDropEvent *event)
//{
//    if (event->mimeData()->hasUrls()) {
//        foreach(const QUrl& url, event->mimeData()->urls()){
//            if (!url.isLocalFile())
//                continue;
//            QString file = url.toLocalFile();
//            if (getFileType(file)==FileType::Project) {
//                openProject(file);
//                return;
//            }
//        }
//        foreach(const QUrl& url, event->mimeData()->urls()){
//            if (!url.isLocalFile())
//                continue;
//            QString file = url.toLocalFile();
//            openFile(file);
//        }
//    }
//}

void MainWindow::on_actionSave_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL) {
        try {
            editor->save();
            if (editor->inProject() && (mProject))
                mProject->saveAll();
        } catch(FileError e) {
            QMessageBox::critical(editor,tr("Error"),e.reason());
        }
    }    
}

void MainWindow::on_actionSaveAs_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL) {
        try {
            editor->saveAs();
        } catch(FileError e) {
            QMessageBox::critical(editor,tr("Error"),e.reason());
        }
    }
}

void MainWindow::on_actionOptions_triggered()
{
    changeOptions();
}

void MainWindow::onCompilerSetChanged(int index)
{
    if (index<0)
        return;
    if (mProject) {
        Editor *e = mEditorList->getEditor();
        if (!e || e->inProject()) {
            if(QMessageBox::warning(
                        e,
                        tr("Change Project Compiler Set"),
                        tr("Change the project's compiler set will lose all custom compiler set options.")
                        +"<br />"
                        + tr("Do you really want to do that?"),
                        QMessageBox::Yes | QMessageBox::No,
                        QMessageBox::No) != QMessageBox::Yes) {
                return;
            }
            mProject->setCompilerSet(index);
            mProject->saveOptions();
            return;
        }
    }
    pSettings->compilerSets().setDefaultIndex(index);
    pSettings->compilerSets().saveDefaultIndex();
}

void MainWindow::logToolsOutput(const QString& msg)
{
    ui->txtToolsOutput->appendPlainText(msg);
    ui->txtToolsOutput->moveCursor(QTextCursor::End);
    ui->txtToolsOutput->moveCursor(QTextCursor::StartOfLine);
    ui->txtToolsOutput->ensureCursorVisible();
}

void MainWindow::onCompileIssue(PCompileIssue issue)
{
    ui->tableIssues->addIssue(issue);

    // Update tab caption
//    if CompilerOutput.Items.Count = 1 then
//      CompSheet.Caption := Lang[ID_SHEET_COMP] + ' (' + IntToStr(CompilerOutput.Items.Count) + ')';

    if (issue->type == CompileIssueType::Error || issue->type ==
            CompileIssueType::Warning) {
        Editor* e = mEditorList->getOpenedEditorByFilename(issue->filename);
        if (e!=nullptr && (issue->line>0)) {
            int line = issue->line;
            if (line > e->document()->count())
                return;
            int col = std::min(issue->column,e->document()->getString(line-1).length()+1);
            if (col < 1)
                col = e->document()->getString(line-1).length()+1;
            e->addSyntaxIssues(line,col,issue->endColumn,issue->type,issue->description);
        }
    }
}

void MainWindow::clearToolsOutput()
{
    ui->txtToolsOutput->clear();
}

void MainWindow::onCompileStarted()
{
    //do nothing
}

void MainWindow::onCompileFinished(bool isCheckSyntax)
{
    if (mQuitting) {
        if (isCheckSyntax)
            mCheckSyntaxInBack = false;
        else
            mCompileSuccessionTask = nullptr;
        return;
    }
    // Update tab caption
    int i = ui->tabMessages->indexOf(ui->tabIssues);
    if (i!=-1) {
        if (isCheckSyntax) {
            if (mCompilerManager->syntaxCheckIssueCount()>0) {
                ui->tabMessages->setTabText(i, tr("Issues") +
                                    QString(" (%1)").arg(mCompilerManager->syntaxCheckIssueCount()));
            } else {
                ui->tabMessages->setTabText(i, tr("Issues"));
            }
        } else {
            if (mCompilerManager->compileIssueCount()>0) {
                ui->tabMessages->setTabText(i, tr("Issues") +
                                    QString(" (%1)").arg(mCompilerManager->compileIssueCount()));
            } else {
                ui->tabMessages->setTabText(i, tr("Issues"));
            }
        }
    }

    if (isCheckSyntax) {
      // check syntax in back, don't change message panel
    } else if (ui->tableIssues->count() == 0) {
        // Close it if there's nothing to show
        if (ui->tabMessages->currentIndex() == i)
            stretchMessagesPanel(false);
    } else {
        if (ui->tabMessages->currentIndex() != i) {
            ui->tabMessages->setCurrentIndex(i);
        }
        stretchMessagesPanel(true);
    }

    Editor * e = mEditorList->getEditor();
    if (e!=nullptr) {
        e->invalidate();
    }

    if (!isCheckSyntax) {
        //run succession task if there aren't any errors
        if (mCompileSuccessionTask && mCompilerManager->compileErrorCount()==0) {
            switch (mCompileSuccessionTask->type) {
            case MainWindow::CompileSuccessionTaskType::RunNormal:
                runExecutable(mCompileSuccessionTask->execName,QString(),RunType::Normal, mCompileSuccessionTask->binDirs);
                break;
            case MainWindow::CompileSuccessionTaskType::RunProblemCases:
                runExecutable(mCompileSuccessionTask->execName,QString(),RunType::ProblemCases, mCompileSuccessionTask->binDirs);
                break;
            case MainWindow::CompileSuccessionTaskType::RunCurrentProblemCase:
                runExecutable(mCompileSuccessionTask->execName,QString(),RunType::CurrentProblemCase, mCompileSuccessionTask->binDirs);
                break;
            case MainWindow::CompileSuccessionTaskType::Debug:
                debug();
                break;
            default:
                break;
            }
            mCompileSuccessionTask.reset();
            // Jump to problem location, sorted by significance
        } else if ((mCompilerManager->compileIssueCount() > 0) && (!mCheckSyntaxInBack)) {
            bool hasError = false;
            // First try to find errors
            for (int i=0;i<ui->tableIssues->count();i++) {
                PCompileIssue issue = ui->tableIssues->issue(i);
                if (issue->type == CompileIssueType::Error) {
                    ui->tableIssues->selectRow(i);
                    hasError = true;
                    break;
                }
            }
            if (!hasError) {
                // Then try to find warnings
                for (int i=0;i<ui->tableIssues->count();i++) {
                    PCompileIssue issue = ui->tableIssues->issue(i);
                    if (issue->type == CompileIssueType::Warning) {
                        ui->tableIssues->selectRow(i);
                        break;
                    }
                }
            }
        }
    } else {
        mCheckSyntaxInBack=false;
    }
    updateCompileActions();
    updateAppTitle();
}

void MainWindow::onCompileErrorOccured(const QString& reason)
{
    QMessageBox::critical(this,tr("Compile Failed"),reason);
}

void MainWindow::onRunErrorOccured(const QString& reason)
{
    mCompilerManager->stopRun();
    QMessageBox::critical(this,tr("Run Failed"),reason);
}

void MainWindow::onRunFinished()
{
    updateCompileActions();
    if (pSettings->executor().minimizeOnRun()) {
        showNormal();
    }
    updateAppTitle();
}

void MainWindow::onRunPausingForFinish()
{
    updateCompileActions();
}

void MainWindow::onRunProblemFinished()
{
    updateProblemTitle();
    ui->pbProblemCases->setVisible(false);
    updateCompileActions();
    updateAppTitle();
}

void MainWindow::onOJProblemCaseStarted(const QString& id,int current, int total)
{
    ui->pbProblemCases->setVisible(true);
    ui->pbProblemCases->setMaximum(total);
    ui->pbProblemCases->setValue(current);
    int row = mOJProblemModel.getCaseIndexById(id);
    if (row>=0) {
        POJProblemCase problemCase = mOJProblemModel.getCase(row);
        problemCase->testState = ProblemCaseTestState::Testing;
        mOJProblemModel.update(row);
        QModelIndex idx = ui->tblProblemCases->currentIndex();
        if (!idx.isValid() || row != idx.row()) {
            ui->tblProblemCases->setCurrentIndex(mOJProblemModel.index(row,0));
        }
        ui->txtProblemCaseOutput->clear();
    }
}

void MainWindow::onOJProblemCaseFinished(const QString& id, int current, int total)
{
    int row = mOJProblemModel.getCaseIndexById(id);
    if (row>=0) {
        POJProblemCase problemCase = mOJProblemModel.getCase(row);
        ProblemCaseValidator validator;
        problemCase->testState = validator.validate(problemCase,pSettings->executor().ignoreSpacesWhenValidatingCases())?
                    ProblemCaseTestState::Passed:
                    ProblemCaseTestState::Failed;
        mOJProblemModel.update(row);
        updateProblemCaseOutput(problemCase);
    }
    ui->pbProblemCases->setMaximum(total);
    ui->pbProblemCases->setValue(current);
    updateProblemTitle();
}

void MainWindow::onOJProblemCaseNewOutputGetted(const QString &/* id */, const QString &line)
{
    ui->txtProblemCaseOutput->appendPlainText(line);
}

void MainWindow::onOJProblemCaseResetOutput(const QString &/* id */, const QString &line)
{
    ui->txtProblemCaseOutput->setPlainText(line);
}

void MainWindow::cleanUpCPUDialog()
{
    disconnect(mCPUDialog,&CPUDialog::closed,
               this,&MainWindow::cleanUpCPUDialog);
    CPUDialog* ptr=mCPUDialog;
    mCPUDialog=nullptr;
    ptr->deleteLater();
}

void MainWindow::onDebugCommandInput(const QString& command)
{
    if (mDebugger->executing()) {
        mDebugger->sendCommand(command,"", DebugCommandSource::Console);
    }
}

void MainWindow::on_actionCompile_triggered()
{
    mCompileSuccessionTask.reset();
    compile();
}

void MainWindow::on_actionRun_triggered()
{
    runExecutable();
}

void MainWindow::on_actionUndo_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->undo();
    }
}

void MainWindow::on_actionRedo_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->redo();
    }
}

void MainWindow::on_actionCut_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->cutToClipboard();
    }
}

void MainWindow::on_actionSelectAll_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->selectAll();
    }
}

void MainWindow::on_actionCopy_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->copyToClipboard();
    }
}

void MainWindow::on_actionPaste_triggered()
{
    QClipboard* clipboard = QGuiApplication::clipboard();
    const QMimeData* data = clipboard->mimeData();
    if (!data)
        return;
    if (data->hasText()) {
        Editor * editor = mEditorList->getEditor();
        if (editor != NULL ) {
            editor->pasteFromClipboard();
            editor->activate();
        }
    } else if (data->hasUrls()) {
        QStringList filesToOpen;
        foreach (const QUrl& url, data->urls()) {
            QString s = url.toLocalFile();
            if (!s.isEmpty()) {
                filesToOpen.append(s);
            }
        }
        if (!filesToOpen.isEmpty())
            openFiles(filesToOpen);
    }
}

void MainWindow::on_actionIndent_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->tab();
    }
}

void MainWindow::on_actionUnIndent_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->shifttab();
    }
}

void MainWindow::on_actionToggleComment_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->toggleComment();
    }
}

void MainWindow::on_actionUnfoldAll_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->unCollpaseAll();
    }
}

void MainWindow::on_actionFoldAll_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->collapseAll();
    }
}

void MainWindow::on_tableIssues_doubleClicked(const QModelIndex &index)
{
    PCompileIssue issue = ui->tableIssues->issue(index);
    if (!issue)
        return;

    Editor * editor = mEditorList->getEditorByFilename(issue->filename);
    if (editor == nullptr)
        return;

    editor->setCaretPositionAndActivate(issue->line,issue->column);
}

void MainWindow::on_actionEncode_in_ANSI_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    try {
        editor->setEncodingOption(ENCODING_SYSTEM_DEFAULT);
    } catch(FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }
}

void MainWindow::on_actionEncode_in_UTF_8_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    try {
        editor->setEncodingOption(ENCODING_UTF8);
    } catch(FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }
}

void MainWindow::on_actionAuto_Detect_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    editor->setEncodingOption(ENCODING_AUTO_DETECT);
}

void MainWindow::on_actionConvert_to_ANSI_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    if (QMessageBox::warning(this,tr("Confirm Convertion"),
                   tr("The editing file will be saved using %1 encoding. <br />This operation can't be reverted. <br />Are you sure to continue?")
                   .arg(QString(QTextCodec::codecForLocale()->name())),
                   QMessageBox::Yes, QMessageBox::No)!=QMessageBox::Yes)
        return;
    editor->convertToEncoding(ENCODING_SYSTEM_DEFAULT);

}

void MainWindow::on_actionConvert_to_UTF_8_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    if (QMessageBox::warning(this,tr("Confirm Convertion"),
                   tr("The editing file will be saved using %1 encoding. <br />This operation can't be reverted. <br />Are you sure to continue?")
                   .arg(ENCODING_UTF8),
                   QMessageBox::Yes, QMessageBox::No)!=QMessageBox::Yes)
        return;
    editor->convertToEncoding(ENCODING_UTF8);
}

void MainWindow::on_tabMessages_tabBarClicked(int index)
{
    if (index == ui->tabMessages->currentIndex() && !ui->tabMessages->isShrinked()) {
        stretchMessagesPanel(false);
    } else {
        stretchMessagesPanel(true);
    }
}


void MainWindow::on_actionCompile_Run_triggered()
{
    doCompileRun(RunType::Normal);
}

void MainWindow::on_actionRebuild_triggered()
{
    mCompileSuccessionTask.reset();
    compile(true);
}

void MainWindow::on_actionStop_Execution_triggered()
{
    mCompilerManager->stopRun();
    mDebugger->stop();
}

void MainWindow::on_actionDebug_triggered()
{
    debug();
}

CompileTarget MainWindow::getCompileTarget()
{
    // Check if the current file belongs to a project
    CompileTarget target = CompileTarget::None;
    Editor* e = mEditorList->getEditor();
    if (e!=nullptr) {
        // Treat makefiles as InProject files too
        if (mProject
                && (e->inProject() || (mProject->makeFileName() == e->filename()))
                ) {
            target = CompileTarget::Project;
        } else {
            target = CompileTarget::File;
        }
    // No editors have been opened. Check if a project is open
    } else if (mProject) {
        target = CompileTarget::Project;
    }
    return target;
}

bool MainWindow::debugInferiorhasBreakpoint()
{
    Editor * e = mEditorList->getEditor();
    if (e==nullptr)
        return false;
    if (!e->inProject()) {
        for (const PBreakpoint& breakpoint:mDebugger->breakpointModel()->breakpoints()) {
            if (e->filename() == breakpoint->filename) {
                return true;
            }
        }
    } else {
        for (const PBreakpoint& breakpoint:mDebugger->breakpointModel()->breakpoints()) {
            Editor* e1 = mEditorList->getOpenedEditorByFilename(breakpoint->filename);
            if (e1 && e1->inProject()) {
                return true;
            }
        }
    }
    return false;
}

void MainWindow::on_actionStep_Over_triggered()
{
    if (mDebugger->executing()) {
        //WatchView.Items.BeginUpdate();
        mDebugger->sendCommand("-exec-next", "");
    }
}

void MainWindow::on_actionStep_Into_triggered()
{
    if (mDebugger->executing()) {
        //WatchView.Items.BeginUpdate();
        mDebugger->sendCommand("-exec-step", "");
    }

}

void MainWindow::on_actionStep_Out_triggered()
{
    if (mDebugger->executing()) {
        //WatchView.Items.BeginUpdate();
        mDebugger->sendCommand("-exec-finish", "");
    }

}

void MainWindow::on_actionRun_To_Cursor_triggered()
{
    if (mDebugger->executing()) {
        Editor *e=mEditorList->getEditor();
        if (e!=nullptr) {
            //WatchView.Items.BeginUpdate();
            mDebugger->sendCommand("-exec-until", QString("\"%1\":%2")
                                   .arg(e->filename())
                                   .arg(e->caretY()));
        }
    }

}

void MainWindow::on_actionContinue_triggered()
{
    if (mDebugger->executing()) {
        //WatchView.Items.BeginUpdate();
        mDebugger->sendCommand("-exec-continue", "");
    }
}

void MainWindow::on_actionAdd_Watch_triggered()
{
    QString s = "";
    Editor *e = mEditorList->getEditor();
    if (e!=nullptr) {
        if (e->selAvail()) {
            s = e->selText();
        } else {
            s = e->wordAtCursor();
        }
    }
    bool isOk;
    s=QInputDialog::getText(this,
                              tr("New Watch Expression"),
                              tr("Enter Watch Expression (it is recommended to use 'this->' for class members):"),
                            QLineEdit::Normal,
                            s,&isOk);
    if (!isOk)
        return;
    s = s.trimmed();
    if (!s.isEmpty()) {
        mDebugger->addWatchVar(s);
    }
}

void MainWindow::on_actionView_CPU_Window_triggered()
{
    showCPUInfoDialog();
}

void MainWindow::on_actionExit_triggered()
{
    close();
}

void MainWindow::onDebugEvaluateInput()
{
    QString s=ui->cbEvaluate->currentText().trimmed();
    if (!s.isEmpty()) {
        connect(mDebugger, &Debugger::evalValueReady,
                   this, &MainWindow::onEvalValueReady);
        mDebugger->sendCommand("-data-evaluate-expression",s);
        pMainWindow->debugger()->refreshAll();
    }
}

void MainWindow::onDebugMemoryAddressInput()
{
    QString s=ui->cbMemoryAddress->currentText().trimmed();
    if (!s.isEmpty()) {
//        connect(mDebugger, &Debugger::memoryExamineReady,
//                   this, &MainWindow::onMemoryExamineReady);
        mDebugger->sendCommand("-data-read-memory",QString("%1 x 1 8 8 ").arg(s));
    }
}

void MainWindow::onParserProgress(const QString &fileName, int total, int current)
{
    // Mention every 5% progress
    int showStep = total / 20;

    // For Total = 1, avoid division by zero
    if (showStep == 0)
        showStep = 1;

    // Only show if needed (it's a very slow operation)
    if (current ==1 || current % showStep==0) {
        updateStatusbarMessage(tr("Parsing file %1 of %2: \"%3\"")
                                  .arg(current).arg(total).arg(fileName));
    }
}

void MainWindow::onStartParsing()
{
    mParserTimer.restart();
}

void MainWindow::onEndParsing(int total, int)
{
    double parseTime = mParserTimer.elapsed() / 1000.0;
    double parsingFrequency;


    if (total > 1) {
        if (parseTime>0) {
            parsingFrequency = total / parseTime;
        } else {
            parsingFrequency = 999;
        }
        updateStatusbarMessage(tr("Done parsing %1 files in %2 seconds")
                                  .arg(total).arg(parseTime)
                                  + " "
                                  + tr("(%1 files per second)")
                                  .arg(parsingFrequency));
    } else {
        updateStatusbarMessage(tr("Done parsing %1 files in %2 seconds")
                                  .arg(total).arg(parseTime));
    }
}

void MainWindow::onEvalValueReady(const QString& value)
{
    updateDebugEval(value);
    disconnect(mDebugger, &Debugger::evalValueReady,
               this, &MainWindow::onEvalValueReady);
}

void MainWindow::onLocalsReady(const QStringList& value)
{
    ui->txtLocals->clear();
    foreach (QString s, value) {
        ui->txtLocals->appendPlainText(s);
    }
    ui->txtLocals->moveCursor(QTextCursor::Start);
}

void MainWindow::on_actionFind_triggered()
{
    Editor *e = mEditorList->getEditor();
    if (!e)
        return;
    if (mSearchDialog==nullptr) {
        mSearchDialog = new SearchDialog(this);
    }
    QString s = e->wordAtCursor();
    mSearchDialog->find(s);
}

void MainWindow::on_actionFind_in_files_triggered()
{
    if (mSearchDialog==nullptr) {
        mSearchDialog = new SearchDialog(this);
    }
    Editor *e = mEditorList->getEditor();
    if (e) {
        QString s = e->wordAtCursor();
        mSearchDialog->findInFiles(s);
    } else {
        mSearchDialog->findInFiles("");
    }
}

void MainWindow::on_actionReplace_triggered()
{
    Editor *e = mEditorList->getEditor();
    if (!e)
        return;
    if (mSearchDialog==nullptr) {
        mSearchDialog = new SearchDialog(this);
    }
    QString s = e->wordAtCursor();
    mSearchDialog->replace(s,s);
}

void MainWindow::on_actionFind_Next_triggered()
{
    Editor *e = mEditorList->getEditor();
    if (e==nullptr)
        return;

    if (mSearchDialog==nullptr)
        return;

    mSearchDialog->findNext();
}

void MainWindow::on_actionFind_Previous_triggered()
{
    Editor *e = mEditorList->getEditor();
    if (e==nullptr)
        return;

    if (mSearchDialog==nullptr)
        return;

    mSearchDialog->findPrevious();
}

void MainWindow::on_cbSearchHistory_currentIndexChanged(int index)
{
    mSearchResultModel.setCurrentIndex(index);
    PSearchResults results = mSearchResultModel.results(index);
    if (results) {
        ui->btnSearchAgain->setEnabled(true);
    } else {
        ui->btnSearchAgain->setEnabled(false);
    }
}

void MainWindow::on_btnSearchAgain_clicked()
{
    if (mSearchDialog==nullptr) {
        mSearchDialog = new SearchDialog(this);
    }
    PSearchResults results=mSearchResultModel.currentResults();
    if (!results)
        return;
    if (results->searchType == SearchType::Search){
        mSearchDialog->findInFiles(results->keyword,
                                   results->scope,
                                   results->options);
    } else if (results->searchType == SearchType::FindOccurences) {
        CppRefacter refactor;
        refactor.findOccurence(results->statementFullname,results->scope);
    }
}

void MainWindow::on_actionRemove_Watch_triggered()
{
    QModelIndexList lst=ui->watchView->selectionModel()->selectedRows();
    if (lst.count()<=1) {
        QModelIndex index =ui->watchView->currentIndex();
        QModelIndex parent;
        while (true) {
            parent = ui->watchView->model()->parent(index);
            if (parent.isValid()) {
                index=parent;
            } else {
                break;
            }
        }
        mDebugger->removeWatchVar(index);
    } else {
        QModelIndexList filteredList;
        foreach(const QModelIndex& index,lst) {
            if (!index.parent().isValid())
                filteredList.append(index);
        };
        std::sort(filteredList.begin(),filteredList.end(), [](const QModelIndex& index1,
                  const QModelIndex& index2) {
            return index1.row()>index2.row();
        });
        foreach(const QModelIndex& index,filteredList) {
            mDebugger->removeWatchVar(index);
        };
    }
}


void MainWindow::on_actionRemove_All_Watches_triggered()
{
    mDebugger->removeWatchVars(true);
}


void MainWindow::on_actionModify_Watch_triggered()
{
    QModelIndexList lst=ui->watchView->selectionModel()->selectedRows();
    if (lst.count()<=1) {
        QModelIndex index =ui->watchView->currentIndex();
        QModelIndex parent;
        parent = ui->watchView->model()->parent(index);
        if (parent.isValid())
            return;
        PWatchVar var = mDebugger->watchVarAt(index);
        if (!var)
            return;
        bool isOk;
        QString newExpr = QInputDialog::getText(
                    this,tr("Modify Watch"),
                    tr("Watch Expression"),
                    QLineEdit::Normal,
                    var->expression,
                    &isOk);
        if (isOk) {
            mDebugger->modifyWatchVarExpression(var->expression,newExpr);
        }
    }
}


void MainWindow::on_actionReformat_Code_triggered()
{
    Editor* e = mEditorList->getEditor();
    if (e) {
        e->reformat();
        e->activate();
    }
}

CaretList &MainWindow::caretList()
{
    return mCaretList;
}

void MainWindow::updateCaretActions()
{
    ui->actionBack->setEnabled(mCaretList.hasPrevious());
    ui->actionForward->setEnabled(mCaretList.hasNext());
}


void MainWindow::on_actionBack_triggered()
{
    PEditorCaret caret = mCaretList.gotoAndGetPrevious();
    mCaretList.pause();
    if (caret) {
        caret->editor->setCaretPositionAndActivate(caret->line,caret->aChar);
    }
    mCaretList.unPause();
    updateCaretActions();
}


void MainWindow::on_actionForward_triggered()
{
    PEditorCaret caret = mCaretList.gotoAndGetNext();
    mCaretList.pause();
    if (caret) {
        caret->editor->setCaretPositionAndActivate(caret->line,caret->aChar);
    }
    mCaretList.unPause();
    updateCaretActions();
}


void MainWindow::on_tabExplorer_tabBarClicked(int index)
{
    if (index == ui->tabExplorer->currentIndex() && !ui->tabExplorer->isShrinked()) {
        stretchExplorerPanel(false);
    } else {
        stretchExplorerPanel(true);
    }
}


void MainWindow::on_EditorTabsLeft_tabBarDoubleClicked(int)
{
    maximizeEditor();
}

void MainWindow::on_EditorTabsRight_tabBarDoubleClicked(int)
{
    maximizeEditor();
}


void MainWindow::on_actionClose_triggered()
{
    mClosing = true;
    Editor* e = mEditorList->getEditor();
    if (e) {
        mEditorList->closeEditor(e);
    }
    mClosing = false;
}


void MainWindow::on_actionClose_All_triggered()
{
    mClosing = true;
    mEditorList->closeAll(mSystemTurnedOff);
    mClosing = false;
}


void MainWindow::on_actionMaximize_Editor_triggered()
{
    maximizeEditor();
}


void MainWindow::on_actionNext_Editor_triggered()
{
    mEditorList->selectNextPage();
}


void MainWindow::on_actionPrevious_Editor_triggered()
{
    mEditorList->selectPreviousPage();
}


void MainWindow::on_actionToggle_Breakpoint_triggered()
{
    Editor * editor = mEditorList->getEditor();
    int line;
    if (editor && editor->pointToLine(mEditorContextMenuPos,line))
        editor->toggleBreakpoint(line);
}


void MainWindow::on_actionClear_all_breakpoints_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (!e)
        return;
    if (QMessageBox::question(this,
                              tr("Clear all breakpoints"),
                              tr("Do you really want to clear all breakpoints in this file?"),
                              QMessageBox::Yes | QMessageBox::No,
                              QMessageBox::No) == QMessageBox::Yes) {
        e->clearBreakpoints();
    }
}


void MainWindow::on_actionBreakpoint_property_triggered()
{
    Editor * editor = mEditorList->getEditor();
    int line;
    if (editor && editor->pointToLine(mEditorContextMenuPos,line)) {
        if (editor->hasBreakpoint(line))
            editor->modifyBreakpointProperty(line);
    }

}


void MainWindow::on_actionGoto_Declaration_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor) {
        editor->gotoDeclaration(editor->caretXY());
    }
}

void MainWindow::on_actionGoto_Definition_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor) {
        editor->gotoDefinition(editor->caretXY());
    }
}


void MainWindow::on_actionFind_references_triggered()
{
    Editor * editor = mEditorList->getEditor();
    BufferCoord pos;
    if (editor && editor->pointToCharLine(mEditorContextMenuPos,pos)) {
        CppRefacter refactor;
        refactor.findOccurence(editor,pos);
        showSearchPanel(true);
    }
}


void MainWindow::on_actionOpen_Containing_Folder_triggered()
{
    Editor* editor = mEditorList->getEditor();
    if (editor) {
        QFileInfo info(editor->filename());
        if (!info.path().isEmpty()) {
            QDesktopServices::openUrl(
                        QUrl("file:///"+
                             includeTrailingPathDelimiter(info.path()),QUrl::TolerantMode));
        }
    }
}


void MainWindow::on_actionOpen_Terminal_triggered()
{
    Editor* editor = mEditorList->getEditor();
    if (editor) {
        QFileInfo info(editor->filename());
        if (!info.path().isEmpty()) {
#ifdef Q_OS_WIN
            openShell(info.path(),"cmd.exe",getBinDirsForCurrentEditor());
#else
            openShell(info.path(),pSettings->environment().terminalPath(),getBinDirsForCurrentEditor());
#endif
        }
    }

}


void MainWindow::on_actionFile_Properties_triggered()
{
    Editor* editor = mEditorList->getEditor();
    if (editor) {
        FilePropertiesDialog dialog(editor,this);
        dialog.exec();
        dialog.setParent(nullptr);
    }
}

void MainWindow::on_searchView_doubleClicked(const QModelIndex &index)
{
    QString filename;
    int line;
    int start;
    if (mSearchResultTreeModel->getItemFileAndLineChar(
                index,filename,line,start)) {
        Editor *e = mEditorList->getEditorByFilename(filename);
        if (e) {
            e->setCaretPositionAndActivate(line,start);
        }
    }
}


void MainWindow::on_tblStackTrace_doubleClicked(const QModelIndex &index)
{
    PTrace trace = mDebugger->backtraceModel()->backtrace(index.row());
    if (trace) {
        Editor *e = mEditorList->getEditorByFilename(trace->filename);
        if (e) {
            e->setCaretPositionAndActivate(trace->line,1);
        }
        mDebugger->sendCommand("-stack-select-frame", QString("%1").arg(trace->level));
        mDebugger->sendCommand("-stack-list-variables", "--all-values");
        mDebugger->sendCommand("-var-update", "--all-values *");
        if (this->mCPUDialog) {
            this->mCPUDialog->updateInfo();
        }
    }
}


void MainWindow::on_tblBreakpoints_doubleClicked(const QModelIndex &index)
{
    PBreakpoint breakpoint = mDebugger->breakpointModel()->breakpoint(index.row());
    if (breakpoint) {
        Editor * e = mEditorList->getEditorByFilename(breakpoint->filename);
        if (e) {
            e->setCaretPositionAndActivate(breakpoint->line,1);
        }
    }
}

std::shared_ptr<Project> MainWindow::project()
{
    return mProject;
}


void MainWindow::on_projectView_doubleClicked(const QModelIndex &index)
{
    QModelIndex sourceIndex = mProjectProxyModel->mapToSource(index);
    if (!sourceIndex.isValid())
        return;
    ProjectModelNode * node = static_cast<ProjectModelNode*>(sourceIndex.internalPointer());
    if (!node)
        return;
    if (node->unitIndex>=0) {
        mProject->openUnit(node->unitIndex);
    }
}


void MainWindow::on_actionClose_Project_triggered()
{
    mClosing = true;
    closeProject(true);
    mClosing = false;
}


void MainWindow::on_actionProject_options_triggered()
{
    if (!mProject)
        return;
    QString oldName = mProject->name();
    PSettingsDialog dialog = SettingsDialog::projectOptionDialog();
    dialog->exec();
    updateCompilerSet();
}


void MainWindow::on_actionNew_Project_triggered()
{
    NewProjectDialog dialog;
    if (dialog.exec() == QDialog::Accepted) {
        if (dialog.makeDefaultLanguage()) {
            pSettings->editor().setDefaultFileCpp(dialog.isCppProject());
            pSettings->editor().save();
        }
        if (dialog.useAsDefaultProjectDir()) {
            pSettings->dirs().setProjectDir(dialog.getLocation());
            pSettings->dirs().save();
        }
        // Take care of the currently opened project
        QString s;
        if (mProject) {
            if (mProject->name().isEmpty())
                s = mProject->filename();
            else
                s = mProject->name();

            // Ask if the user wants to close the current one. If not, abort
            if (QMessageBox::question(this,
                                     tr("New project"),
                                     tr("Close %1 and start new project?").arg(s),
                                     QMessageBox::Yes | QMessageBox::No,
                                     QMessageBox::Yes)==QMessageBox::Yes) {
                closeProject(false);
            } else
                return;
        }

        //Create the project folder
        QString location = includeTrailingPathDelimiter(dialog.getLocation())+dialog.getProjectName();
        QDir dir(location);
        if (!dir.exists()) {
            if (QMessageBox::question(this,
                                      tr("Folder not exist"),
                                      tr("Folder '%1' doesn't exist. Create it now?").arg(location),
                                      QMessageBox::Yes | QMessageBox::No,
                                      QMessageBox::Yes) != QMessageBox::Yes) {
                return;
            }
            if (!dir.mkpath(location)) {
                QMessageBox::critical(this,
                                      tr("Can't create folder"),
                                      tr("Failed to create folder '%1'.").arg(location),
                                      QMessageBox::Yes);
                return;
            }
        }

//     if cbDefault.Checked then
//        devData.DefCpp := rbCpp.Checked;

        s = includeTrailingPathDelimiter(location)
                + dialog.getProjectName() + "." + DEV_PROJECT_EXT;

        if (fileExists(s)) {
            QString saveName = QFileDialog::getSaveFileName(
                        this,
                        tr("Save new project as"),
                        location,
                        tr("Red Panda C++ project file (*.dev)"));
            if (!saveName.isEmpty()) {
                s = saveName;
            }
        }

        // Create an empty project
        mProject = std::make_shared<Project>(s,dialog.getProjectName(),
                                             mEditorList,
                                             &mFileSystemWatcher);
        if (!mProject->assignTemplate(dialog.getTemplate(),dialog.isCppProject())) {
            mProject = nullptr;
            QMessageBox::critical(this,
                                  tr("New project fail"),
                                  tr("Can't assign project template"),
                                  QMessageBox::Ok);
        }
        mProject->saveAll();
        updateProjectView();
    }
    pSettings->ui().setNewProjectDialogWidth(dialog.width());
    pSettings->ui().setNewProjectDialogHeight(dialog.height());
}


void MainWindow::on_actionSaveAll_triggered()
{
    // Pause the change notifier
    bool oldBlock = mFileSystemWatcher.blockSignals(true);
    auto action = finally([oldBlock,this] {
        mFileSystemWatcher.blockSignals(oldBlock);
    });
    if (mProject) {
        mProject->saveAll();
    }

    // Make changes to files
    for (int i=0;i<mEditorList->pageCount();i++) {
        Editor * e= (*mEditorList)[i];
        if (e->modified() && !e->inProject()) {
            if (!e->save())
                break;
        }
    }
    updateAppTitle();
}


void MainWindow::on_actionProject_New_File_triggered()
{
    newProjectUnitFile();
}


void MainWindow::on_actionAdd_to_project_triggered()
{
    if (!mProject)
        return;
    QFileDialog dialog(this,tr("Add to project"),
                       mProject->directory(),
                       pSystemConsts->defaultFileFilters().join(";;"));
    dialog.setFileMode(QFileDialog::ExistingFiles);
    dialog.setAcceptMode(QFileDialog::AcceptOpen);
    if (dialog.exec()) {
        QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
        ProjectModelNode * node = nullptr;
        if (current.isValid()) {
            node = static_cast<ProjectModelNode*>(current.internalPointer());
        }
        PProjectModelNode folderNode =  mProject->pointerToNode(node);
        foreach (const QString& filename, dialog.selectedFiles()) {
            mProject->addUnit(filename,folderNode,false);
            mProject->cppParser()->addFileToScan(filename);
            QString branch;
            if (pSettings->vcs().gitOk() && mProject->model()->iconProvider()->VCSRepository()->hasRepository(branch)) {
                QString output;
                mProject->model()->iconProvider()->VCSRepository()->add(
                            extractRelativePath(mProject->folder(),filename),
                            output
                            );
            }
        }
        mProject->rebuildNodes();
        mProject->saveUnits();
        parseFileList(mProject->cppParser());
        updateProjectView();
    }
}


void MainWindow::on_actionRemove_from_project_triggered()
{
    if (!mProject)
        return;
    if (!ui->projectView->selectionModel()->hasSelection())
        return;
    mProject->model()->beginUpdate();
    QSet<int> selected;
    foreach (const QModelIndex& index, ui->projectView->selectionModel()->selectedIndexes()){
        if (!index.isValid())
            continue;
        QModelIndex realIndex = mProjectProxyModel->mapToSource(index);
        ProjectModelNode * node = static_cast<ProjectModelNode*>(realIndex.internalPointer());
        PProjectModelNode folderNode =  mProject->pointerToNode(node);
        if (!folderNode)
            continue;
        selected.insert(folderNode->unitIndex);
    };

    bool removeFile = (QMessageBox::question(this,tr("Remove file"),
                              tr("Remove the file from disk?"),
                              QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes);

    for (int i=mProject->units().count()-1;i>=0;i--) {
        if (selected.contains(i)) {
            mProject->removeUnit(i,true,removeFile);
        }
    }

    mProject->saveUnits();
    mProject->model()->endUpdate();
    updateProjectView();
}


void MainWindow::on_actionView_Makefile_triggered()
{
    if (!mProject)
        return;
    prepareProjectForCompile();
    mCompilerManager->buildProjectMakefile(mProject);
    openFile(mProject->makeFileName());
}


void MainWindow::on_actionMakeClean_triggered()
{
    if (!mProject)
        return;
    prepareProjectForCompile();
    mCompilerManager->cleanProject(mProject);
}


void MainWindow::on_actionProject_Open_Folder_In_Explorer_triggered()
{
    if (!mProject)
        return;
    QDesktopServices::openUrl(
                QUrl("file:///"+includeTrailingPathDelimiter(mProject->directory()),QUrl::TolerantMode));
}


void MainWindow::on_actionProject_Open_In_Terminal_triggered()
{
    if (!mProject)
        return;
#ifdef Q_OS_WIN
    openShell(mProject->directory(),"cmd.exe",mProject->binDirs());
#else
    openShell(mProject->directory(),pSettings->environment().terminalPath(),mProject->binDirs());
#endif
}

const std::shared_ptr<QHash<StatementKind, std::shared_ptr<ColorSchemeItem> > > &MainWindow::statementColors() const
{
    return mStatementColors;
}


void MainWindow::on_classBrowser_doubleClicked(const QModelIndex &index)
{
    if (!index.isValid())
        return ;
    ClassBrowserNode * node = static_cast<ClassBrowserNode*>(index.internalPointer());
    if (!node)
        return ;
    PStatement statement = node->statement;
    if (!statement) {
        return;
    }
    QString filename;
    int line;
    filename = statement->fileName;
    line = statement->line;
    Editor* e = pMainWindow->editorList()->getEditorByFilename(filename);
    if (e) {
        e->setCaretPositionAndActivate(line,1);
    }
}

const PTodoParser &MainWindow::todoParser() const
{
    return mTodoParser;
}

PCodeSnippetManager &MainWindow::codeSnippetManager()
{
    return mCodeSnippetManager;
}

PSymbolUsageManager &MainWindow::symbolUsageManager()
{
    return mSymbolUsageManager;
}

void MainWindow::showHideInfosTab(QWidget *widget, bool show)
{
    int idx = findTabIndex(ui->tabExplorer,widget);
    if (idx>=0) {
        if (!show) {
            if (mTabInfosData.contains(widget)) {
                PTabWidgetInfo info = mTabInfosData[widget];
                info->icon = ui->tabExplorer->tabIcon(idx);
                info->text = ui->tabExplorer->tabText(idx);
            }

            ui->tabExplorer->removeTab(idx);
        }
    } else {
        if (show && mTabInfosData.contains(widget)) {
            PTabWidgetInfo info = mTabInfosData[widget];
            int insert = -1;
            for (int i=0;i<ui->tabExplorer->count();i++) {
                QWidget * w=ui->tabExplorer->widget(i);
                PTabWidgetInfo infoW = mTabInfosData[w];
                if (infoW->order>info->order) {
                    insert = i;
                    break;
                }
            }
            if (insert>=0) {
                ui->tabExplorer->insertTab(insert, widget, info->icon, info->text);
            } else {
                ui->tabExplorer->addTab(widget, info->icon, info->text);
            }
        }
    }
}

void MainWindow::showHideMessagesTab(QWidget *widget, bool show)
{
    int idx = findTabIndex(ui->tabMessages,widget);
    if (idx>=0) {
        if (!show) {
            if (mTabMessagesData.contains(widget)) {
                PTabWidgetInfo info = mTabMessagesData[widget];
                info->icon = ui->tabMessages->tabIcon(idx);
                info->text = ui->tabMessages->tabText(idx);
            }
            ui->tabMessages->removeTab(idx);
        }
    } else {
        if (show && mTabMessagesData.contains(widget)) {
            PTabWidgetInfo info = mTabMessagesData[widget];
            int insert = -1;
            for (int i=0;i<ui->tabMessages->count();i++) {
                QWidget * w=ui->tabMessages->widget(i);
                PTabWidgetInfo infoW = mTabMessagesData[w];
                if (infoW->order>info->order) {
                    insert = i;
                    break;
                }
            }
            if (insert>=0) {
                ui->tabMessages->insertTab(insert, widget, info->icon, info->text);
            } else {
                ui->tabMessages->addTab(widget, info->icon, info->text);
            }
        }
    }
}


void MainWindow::prepareTabInfosData()
{
    for (int i=0;i<ui->tabExplorer->count();i++) {
        QWidget* widget = ui->tabExplorer->widget(i);
        PTabWidgetInfo info = std::make_shared<TabWidgetInfo>();
        info->order =i;
        info->text = ui->tabExplorer->tabText(i);
        info->icon = ui->tabExplorer->tabIcon(i);
        mTabInfosData[widget]=info;
    }
}

void MainWindow::prepareTabMessagesData()
{
    for (int i=0;i<ui->tabMessages->count();i++) {
        QWidget* widget = ui->tabMessages->widget(i);
        PTabWidgetInfo info = std::make_shared<TabWidgetInfo>();
        info->order =i;
        info->text = ui->tabMessages->tabText(i);
        info->icon = ui->tabMessages->tabIcon(i);
        mTabMessagesData[widget]=info;
    }
}

void MainWindow::newProjectUnitFile()
{
    if (!mProject)
        return;
    int idx = -1;
    QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
    ProjectModelNode * node = nullptr;
    if (current.isValid()) {
        node = static_cast<ProjectModelNode*>(current.internalPointer());
    }
    PProjectModelNode pNode = mProject->pointerToNode(node);

    while (pNode && pNode->unitIndex>0) {
        pNode = pNode->parent.lock();
    }

    if (!pNode) {
        pNode = mProject->rootNode();
    }

    QString newFileName;
    PProjectUnit newUnit;
    if (mProject->modelType() == ProjectModelType::FileSystem) {
        PProjectModelNode modelTypeNode = pNode;
        while (modelTypeNode && modelTypeNode->folderNodeType==ProjectSpecialFolderNode::NonSpecial) {
            modelTypeNode=modelTypeNode->parent.lock();
        }
        if (!modelTypeNode) {
             modelTypeNode = mProject->rootNode();
        }
        NewProjectUnitDialog newProjectUnitDialog;
        if (modelTypeNode == mProject->rootNode()) {
            if (mProject->options().isCpp)
                newProjectUnitDialog.setSuffix("cpp");
            else
                newProjectUnitDialog.setSuffix("c");
        } else {
            switch (modelTypeNode->folderNodeType) {
            case ProjectSpecialFolderNode::HEADERS:
                newProjectUnitDialog.setSuffix("h");
                break;
            case ProjectSpecialFolderNode::SOURCES:
                if (mProject->options().isCpp)
                    newProjectUnitDialog.setSuffix("cpp");
                else
                    newProjectUnitDialog.setSuffix("c");
                break;
            default:
                newProjectUnitDialog.setSuffix("");
            }
        }
        QString folder = mProject->fileSystemNodeFolderPath(pNode);
//        qDebug()<<folder;
        newProjectUnitDialog.setFolder(folder);
        if (newProjectUnitDialog.exec()!=QDialog::Accepted) {
            return;
        }
        newFileName=QDir(newProjectUnitDialog.folder()).absoluteFilePath(newProjectUnitDialog.filename());
        if (newFileName.isEmpty())
            return;
    } else {
        do {
            newFileName = tr("untitled")+QString("%1").arg(getNewFileNumber());
            if (mProject->options().isCpp)
                newFileName += ".cpp";
            else
                newFileName += ".c";
        } while (QDir(mProject->directory()).exists(newFileName));
        newFileName = QInputDialog::getText(
                    this,
                    tr("New Project File Name"),
                    tr("File Name:"),
                    QLineEdit::Normal,
                    newFileName);
        if (newFileName.isEmpty())
            return;
        newFileName = QDir(mProject->directory()).absoluteFilePath(newFileName);
    }
    if (fileExists(newFileName)) {
        QMessageBox::critical(this,tr("File Already Exists!"),
                              tr("File '%1' already exists!").arg(newFileName));
        return;
    }
    newUnit = mProject->newUnit(
                    pNode,newFileName);

    mProject->rebuildNodes();
    mProject->saveAll();
        updateProjectView();
    idx = mProject->units().count()-1;
    Editor * editor = mProject->openUnit(idx);
    //editor->setUseCppSyntax(mProject->options().useGPP);
    //editor->setModified(true);
    editor->activate();
    QString branch;
    if (pSettings->vcs().gitOk() && mProject->model()->iconProvider()->VCSRepository()->hasRepository(branch)) {
        QString output;
        mProject->model()->iconProvider()->VCSRepository()->add(newFileName,output);
        mProject->model()->beginUpdate();
        mProject->model()->endUpdate();
    }
    updateProjectView();
}

void MainWindow::fillProblemCaseInputAndExpected(const POJProblemCase &problemCase)
{
    ui->btnProblemCaseInputFileName->setEnabled(true);
    if (fileExists(problemCase->inputFileName)) {
        ui->txtProblemCaseInput->setReadOnly(true);
        ui->txtProblemCaseInput->setPlainText(readFileToByteArray(problemCase->inputFileName));
        ui->btnProblemCaseClearInputFileName->setVisible(true);
        ui->txtProblemCaseInputFileName->setText(extractFileName(problemCase->inputFileName));
        ui->txtProblemCaseInputFileName->setToolTip(problemCase->inputFileName);
    } else {
        ui->txtProblemCaseInput->setReadOnly(false);
        ui->txtProblemCaseInput->setPlainText(problemCase->input);
        ui->btnProblemCaseClearInputFileName->setVisible(false);
        ui->txtProblemCaseInputFileName->clear();
        ui->txtProblemCaseInputFileName->setToolTip("");
    }
    ui->btnProblemCaseExpectedOutputFileName->setEnabled(true);
    if (fileExists(problemCase->expectedOutputFileName)) {
        ui->txtProblemCaseExpected->setReadOnly(true);
        ui->txtProblemCaseExpected->setPlainText(readFileToByteArray(problemCase->expectedOutputFileName));
        ui->btnProblemCaseClearExpectedOutputFileName->setVisible(true);
        ui->txtProblemCaseExpectedOutputFileName->setText(extractFileName(problemCase->expectedOutputFileName));
        ui->txtProblemCaseExpectedOutputFileName->setToolTip(problemCase->inputFileName);
    } else {
        ui->txtProblemCaseExpected->setReadOnly(false);
        ui->txtProblemCaseExpected->setPlainText(problemCase->expected);
        ui->btnProblemCaseClearExpectedOutputFileName->setVisible(false);
        ui->txtProblemCaseExpectedOutputFileName->clear();
        ui->txtProblemCaseExpectedOutputFileName->setToolTip("");
    }
}

void MainWindow::doFilesViewRemoveFile(const QModelIndex &index)
{
    if (!index.isValid())
        return;
    if (mFileSystemModel.isDir(index)) {
        QDir dir(mFileSystemModel.fileInfo(index).absoluteFilePath());
        if (!dir.isEmpty() &&
                QMessageBox::question(ui->treeFiles
                                      ,tr("Delete")
                                      ,tr("Folder %1 is not empty.").arg(mFileSystemModel.fileName(index))
                                      + tr("Do you really want to delete it?"),
                            QMessageBox::Yes | QMessageBox::No, QMessageBox::No)!=QMessageBox::Yes)
            return;
        dir.removeRecursively();
    } else {
        QFile::remove(mFileSystemModel.filePath(index));
    }
}

static void setDockTitlebarLocation(QDockWidget* dock, const Qt::DockWidgetArea &area) {
    switch(area) {
    case Qt::DockWidgetArea::BottomDockWidgetArea:
    case Qt::DockWidgetArea::TopDockWidgetArea:
        dock->setFeatures(dock->features() | QDockWidget::DockWidgetVerticalTitleBar);
        break;
    default:
        dock->setFeatures(dock->features() & ~QDockWidget::DockWidgetVerticalTitleBar);
    }
}

static void setTabsInDockLocation(QTabWidget* tabs, const Qt::DockWidgetArea &area) {
    switch(area) {
    case Qt::DockWidgetArea::BottomDockWidgetArea:
    case Qt::DockWidgetArea::TopDockWidgetArea:
        tabs->setTabPosition(QTabWidget::TabPosition::South);
        break;
    case Qt::DockWidgetArea::LeftDockWidgetArea:
        tabs->setTabPosition(QTabWidget::TabPosition::West);
        break;
    case Qt::DockWidgetArea::RightDockWidgetArea:
        tabs->setTabPosition(QTabWidget::TabPosition::East);
        break;
    default:
        break;
    }
}

static void setSplitterInDockLocation(QSplitter* splitter, const Qt::DockWidgetArea& area) {
    switch(area) {
    case Qt::DockWidgetArea::BottomDockWidgetArea:
    case Qt::DockWidgetArea::TopDockWidgetArea:
        splitter->setOrientation(Qt::Orientation::Horizontal);
        break;
    default:
        splitter->setOrientation(Qt::Orientation::Vertical);
    }

}
void MainWindow::setDockExplorerToArea(const Qt::DockWidgetArea &area)
{
    ui->dockMessages->setAllowedAreas(
                (Qt::DockWidgetArea::LeftDockWidgetArea |
                 Qt::DockWidgetArea::BottomDockWidgetArea |
                 Qt::DockWidgetArea::RightDockWidgetArea)
                & ~area);
    if (area==Qt::DockWidgetArea::NoDockWidgetArea)
        return;
    setDockTitlebarLocation(ui->dockExplorer,area);
    setTabsInDockLocation(ui->tabExplorer,area);
}

void MainWindow::setDockMessagesToArea(const Qt::DockWidgetArea &area)
{
    ui->dockExplorer->setAllowedAreas(
                (Qt::DockWidgetArea::LeftDockWidgetArea |
                 Qt::DockWidgetArea::BottomDockWidgetArea |
                 Qt::DockWidgetArea::RightDockWidgetArea)
                & ~area);
    Qt::DockWidgetArea effectiveArea;
    if (area==Qt::DockWidgetArea::NoDockWidgetArea) {
        switch (mMessagesDockLocation) {
        case Qt::DockWidgetArea::BottomDockWidgetArea:
        case Qt::DockWidgetArea::TopDockWidgetArea:
            effectiveArea = Qt::DockWidgetArea::RightDockWidgetArea;
            break;
        default:
            if (dockWidgetArea(ui->dockExplorer)!=Qt::DockWidgetArea::BottomDockWidgetArea)
                effectiveArea = Qt::DockWidgetArea::BottomDockWidgetArea;
            else
                effectiveArea = Qt::DockWidgetArea::LeftDockWidgetArea;
        }
    } else {
        effectiveArea = area;
        mMessagesDockLocation = area;
        setDockTitlebarLocation(ui->dockMessages,effectiveArea);
    }
    setTabsInDockLocation(ui->tabMessages,effectiveArea);
    setSplitterInDockLocation(ui->splitterDebug,effectiveArea);
    setSplitterInDockLocation(ui->splitterProblem,effectiveArea);
    QGridLayout* layout=(QGridLayout*)ui->panelProblemCase->layout();
    layout->removeWidget(ui->widgetProblemCaseInputCaption);
    layout->removeWidget(ui->widgetProblemCaseOutputCaption);
    layout->removeWidget(ui->widgetProblemCaseExpectedCaption);
    layout->removeWidget(ui->txtProblemCaseInput);
    layout->removeWidget(ui->txtProblemCaseOutput);
    layout->removeWidget(ui->txtProblemCaseExpected);
    layout->removeWidget(ui->lblProblemCaseInput);
    layout->removeWidget(ui->lblProblemCaseOutput);
    layout->removeWidget(ui->lblProblemCaseExpected);
    switch(effectiveArea) {
    case Qt::DockWidgetArea::BottomDockWidgetArea:
    case Qt::DockWidgetArea::TopDockWidgetArea:
        layout->addWidget(ui->widgetProblemCaseInputCaption, 0, 0, 1, 1);
        layout->addWidget(ui->txtProblemCaseInput, 1, 0, 1, 1);
//        layout->addWidget(ui->lblProblemCaseInput, 2, 0, 1, 1);

        layout->addWidget(ui->widgetProblemCaseExpectedCaption, 0, 1, 1, 1);
        layout->addWidget(ui->txtProblemCaseExpected, 1, 1, 1, 1);
//        layout->addWidget(ui->lblProblemCaseExpected, 2, 1, 1, 1);

        layout->addWidget(ui->widgetProblemCaseOutputCaption, 0, 2, 1, 1);
        layout->addWidget(ui->txtProblemCaseOutput, 1, 2, 1, 1);
//        layout->addWidget(ui->lblProblemCaseOutput, 2, 2, 1, 1);


        break;
    default:
        layout->addWidget(ui->widgetProblemCaseInputCaption, 0, 0, 1, 1);
        layout->addWidget(ui->txtProblemCaseInput, 1, 0, 1, 1);
        //layout->addWidget(ui->lblProblemCaseInput, 2, 0, 1, 1);

        layout->addWidget(ui->widgetProblemCaseExpectedCaption, 3, 0, 1, 1);
        layout->addWidget(ui->txtProblemCaseExpected, 4, 0, 1, 1);
        //layout->addWidget(ui->lblProblemCaseExpected, 5, 0, 1, 1);

        layout->addWidget(ui->widgetProblemCaseOutputCaption, 6, 0, 1, 1);
        layout->addWidget(ui->txtProblemCaseOutput, 7, 0, 1, 1);
        //layout->addWidget(ui->lblProblemCaseOutput, 8, 0, 1, 1);
    }
}

void MainWindow::updateVCSActions()
{
    bool hasRepository = false;
    bool shouldEnable = false;
    bool canBranch = false;
    if (ui->projectView->isVisible() && mProject) {
        mProject->model()->iconProvider()->update();
        QString branch;
        hasRepository = mProject->model()->iconProvider()->VCSRepository()->hasRepository(branch);
        shouldEnable = true;
        canBranch = !mProject->model()->iconProvider()->VCSRepository()->hasChangedFiles()
                && !mProject->model()->iconProvider()->VCSRepository()->hasStagedFiles();
    } else if (ui->treeFiles->isVisible()) {
        mFileSystemModelIconProvider.update();
        QString branch;
        hasRepository = mFileSystemModelIconProvider.VCSRepository()->hasRepository(branch);
        shouldEnable = true;
        canBranch =!mFileSystemModelIconProvider.VCSRepository()->hasChangedFiles()
                && !mFileSystemModelIconProvider.VCSRepository()->hasStagedFiles();
    }
    ui->actionGit_Remotes->setEnabled(hasRepository && shouldEnable);
    ui->actionGit_Create_Repository->setEnabled(!hasRepository && shouldEnable);
    ui->actionGit_Log->setEnabled(hasRepository && shouldEnable);
    ui->actionGit_Commit->setEnabled(hasRepository && shouldEnable);
    ui->actionGit_Branch->setEnabled(hasRepository && shouldEnable && canBranch);
    ui->actionGit_Merge->setEnabled(hasRepository && shouldEnable && canBranch);
    ui->actionGit_Reset->setEnabled(hasRepository && shouldEnable);
    ui->actionGit_Restore->setEnabled(hasRepository && shouldEnable);
    ui->actionGit_Revert->setEnabled(hasRepository && shouldEnable);
}

void MainWindow::invalidateProjectProxyModel()
{
    mProjectProxyModel->invalidate();
}

void MainWindow::onEditorRenamed(const QString &oldFilename, const QString &newFilename, bool firstSave)
{
    if (firstSave)
        mOJProblemSetModel.updateProblemAnswerFilename(oldFilename, newFilename);
}

void MainWindow::on_EditorTabsLeft_currentChanged(int)
{
}


void MainWindow::on_EditorTabsRight_currentChanged(int)
{
}

void MainWindow::on_tableTODO_doubleClicked(const QModelIndex &index)
{
    PTodoItem item = mTodoModel.getItem(index);
    if (item) {
        Editor * editor = mEditorList->getOpenedEditorByFilename(item->filename);
        if (editor) {
            editor->setCaretPositionAndActivate(item->lineNo,item->ch+1);
        }
    }
}


void MainWindow::on_actionAbout_triggered()
{
    AboutDialog dialog;
    dialog.exec();
}


void MainWindow::on_actionRename_Symbol_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (!editor)
        return;
    editor->beginUpdate();
    BufferCoord oldCaretXY = editor->caretXY();
    //    mClassBrowserModel.beginUpdate();
    QCursor oldCursor = editor->cursor();
    editor->setCursor(Qt::CursorShape::WaitCursor);
    auto action = finally([oldCursor,editor]{
        editor->endUpdate();
//        mClassBrowserModel.EndTreeUpdate;
        editor->setCursor(oldCursor);
    });
    QString word = editor->wordAtCursor();
    if (word.isEmpty())
        return;

//    if (!isIdentifier(word)) {
//        return;
//    }

    if (isCppKeyword(word)) {
        return;
    }

    if (editor->inProject() && mProject) {
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor * e=(*mEditorList)[i];
            if (e->modified())  {
                mProject->cppParser()->parseFile(editor->filename(), editor->inProject(), false, false);
            }
        }
        QStringList expression = editor->getExpressionAtPosition(oldCaretXY);
        if (expression.isEmpty() && oldCaretXY.Char>1) {
            BufferCoord coord=oldCaretXY;
            coord.Char--;
            expression = editor->getExpressionAtPosition(coord);
        }
            // Find it's definition
        PStatement oldStatement = editor->parser()->findStatementOf(
                        editor->filename(),
                        expression,
                        oldCaretXY.Line);
        // definition of the symbol not found
        if (!oldStatement)
            return;
        // found but not in this file
        if (editor->filename() != oldStatement->fileName
            || editor->filename() != oldStatement->definitionFileName) {
            // it's defined in system header, dont rename
            if (mProject->cppParser()->isSystemHeaderFile(oldStatement->fileName)) {
                QMessageBox::critical(editor,
                            tr("Rename Error"),
                            tr("Symbol '%1' is defined in system header.")
                                      .arg(oldStatement->fullName));
                return;
            }
            CppRefacter refactor;
            refactor.findOccurence(editor,oldCaretXY);
            showSearchPanel(true);
            return;
        }
    }

    bool ok;
    QString newWord = QInputDialog::getText(editor,
                                            tr("Rename Symbol"),
                                            tr("New Name"),
                                            QLineEdit::Normal,word, &ok);
    if (!ok)
        return;

    if (word == newWord)
        return;

    if (!editor->inProject() && editor->modified() ) {
        PCppParser parser = editor->parser();
        //here we must reparse the file in sync, or rename may fail
        parser->parseFile(editor->filename(), editor->inProject(), false, false);
    }
    CppRefacter refactor;

    refactor.renameSymbol(editor,oldCaretXY,word,newWord);
    editor->reparse();

}


void MainWindow::showSearchReplacePanel(bool show)
{
    ui->replacePanel->setVisible(show);
    ui->cbSearchHistory->setDisabled(show);
    if (show && mSearchResultModel.currentResults()) {
        ui->cbReplaceInHistory->setCurrentText(
                    mSearchResultModel.currentResults()->keyword);
    }
    mSearchResultTreeModel->setSelectable(show);
}

void MainWindow::setFilesViewRoot(const QString &path, bool setOpenFolder)
{
    mFileSystemModelIconProvider.setRootFolder(path);
    mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
    mFileSystemModel.setRootPath(path);
    ui->treeFiles->setRootIndex(mFileSystemModel.index(path));
    pSettings->environment().setCurrentFolder(path);
    if (setOpenFolder)
        QDir::setCurrent(path);
    int pos = ui->cbFilesPath->findText(path);
    if (pos<0) {
        ui->cbFilesPath->addItem(mFileSystemModel.iconProvider()->icon(QFileIconProvider::Folder),path);
        pos =  ui->cbFilesPath->findText(path);
    } else if (ui->cbFilesPath->itemIcon(pos).isNull()) {
        ui->cbFilesPath->setItemIcon(pos,mFileSystemModel.iconProvider()->icon(QFileIconProvider::Folder));
    }
    ui->cbFilesPath->setCurrentIndex(pos);
    ui->cbFilesPath->lineEdit()->setCursorPosition(1);
}

void MainWindow::clearIssues()
{
    int i = ui->tabMessages->indexOf(ui->tabIssues);
    if (i!=-1) {
        ui->tabMessages->setTabText(i, tr("Issues"));
    }
    ui->tableIssues->clearIssues();
}

void MainWindow::doCompileRun(RunType runType)
{
    CompileTarget target =getCompileTarget();
    QStringList binDirs;
    QString execName;
    if (target == CompileTarget::Project) {
        binDirs = mProject->binDirs();
        execName = mProject->executable();
    } else {
        binDirs = getDefaultCompilerSetBinDirs();
    }
    mCompileSuccessionTask = std::make_shared<CompileSuccessionTask>();
    mCompileSuccessionTask->binDirs=binDirs;
    switch (runType) {
    case RunType::CurrentProblemCase:
        mCompileSuccessionTask->type = CompileSuccessionTaskType::RunCurrentProblemCase;
        break;
    case RunType::ProblemCases:
        mCompileSuccessionTask->type = CompileSuccessionTaskType::RunProblemCases;
        break;
    default:
        mCompileSuccessionTask->type = CompileSuccessionTaskType::RunNormal;
    }
    compile();
}

void MainWindow::updateProblemCaseOutput(POJProblemCase problemCase)
{
    if (problemCase->testState == ProblemCaseTestState::Failed) {
        int diffLine;
        if (problemCase->outputLineCounts > problemCase->expectedLineCounts) {
            diffLine = problemCase->expectedLineCounts;
        } else if (problemCase->outputLineCounts < problemCase->expectedLineCounts) {
            diffLine = problemCase->outputLineCounts;
        } else {
            diffLine = problemCase->firstDiffLine;
        }
        if (diffLine < problemCase->outputLineCounts) {
            QTextBlock block = ui->txtProblemCaseOutput->document()->findBlockByLineNumber(diffLine);
            if (!block.isValid())
                return;
            QTextCursor cur(block);
            if (cur.isNull())
                return;
            cur = QTextCursor(block);
            QTextCharFormat oldFormat = cur.charFormat();
            QTextCharFormat format = cur.charFormat();
            cur.select(QTextCursor::LineUnderCursor);
            format.setUnderlineColor(mErrorColor);
            format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
            cur.setCharFormat(format);
            cur.clearSelection();
            cur.setCharFormat(oldFormat);
            ui->txtProblemCaseOutput->setTextCursor(cur);
        } else if (diffLine < problemCase->expectedLineCounts) {
            ui->txtProblemCaseOutput->moveCursor(QTextCursor::MoveOperation::End);
        }
    }
}

void MainWindow::applyCurrentProblemCaseChanges()
{
    QModelIndex idx = ui->tblProblemCases->currentIndex();
    if (idx.isValid()) {
        POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
        if (problemCase) {
            if (!fileExists(problemCase->inputFileName))
                problemCase->input = ui->txtProblemCaseInput->toPlainText();
            problemCase->expected = ui->txtProblemCaseExpected->toPlainText();
        }
    }
}

void MainWindow::on_btnReplace_clicked()
{
    //select all items by default
    PSearchResults results = mSearchResultModel.currentResults();
    if (!results) {
        return;
    }
    QString newWord = ui->cbReplaceInHistory->currentText();
    foreach (const PSearchResultTreeItem& file, results->results) {
        QStringList contents;
        Editor* editor = mEditorList->getEditorByFilename(file->filename);
        if (!editor) {
            QMessageBox::critical(this,
                                  tr("Replace Error"),
                                  tr("Can't open file '%1' for replace!").arg(file->filename));
            return;
        }
        contents = editor->contents();
        for (int i=file->results.count()-1;i>=0;i--) {
            const PSearchResultTreeItem& item = file->results[i];
            if (!item->selected)
                continue;
            QString line = contents[item->line-1];
            if (line.mid(item->start-1,results->keyword.length())!=results->keyword) {
                QMessageBox::critical(editor,
                            tr("Replace Error"),
                            tr("Contents has changed since last search!"));
                return;
            }
            line.remove(item->start-1,results->keyword.length());
            line.insert(item->start-1, newWord);
            contents[item->line-1] = line;
        }
        BufferCoord coord=editor->caretXY();
        int topLine = editor->topLine();
        int leftChar = editor->leftChar();
        editor->replaceAll(contents.join(editor->lineBreak()));
        editor->setCaretXY(coord);
        editor->setTopLine(topLine);
        editor->setLeftChar(leftChar);
    }
    showSearchReplacePanel(false);
    stretchMessagesPanel(false);
}

void MainWindow::on_btnCancelReplace_clicked()
{
    showSearchReplacePanel(false);
}

void MainWindow::on_actionPrint_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (!editor)
        return;
    editor->print();
}

bool MainWindow::shouldRemoveAllSettings() const
{
    return mShouldRemoveAllSettings;
}

const PToolsManager &MainWindow::toolsManager() const
{
    return mToolsManager;
}


void MainWindow::on_actionExport_As_RTF_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (!editor)
        return;
    QString rtfFile = QFileDialog::getSaveFileName(editor,
                                 tr("Export As RTF"),
                                 extractFilePath(editor->filename()),
                                 tr("Rich Text Format Files (*.rtf)")
                                 );
    if (rtfFile.isEmpty())
        return;
    try {
        editor->exportAsRTF(rtfFile);
    } catch (FileError e) {
        QMessageBox::critical(editor,
                              "Error",
                              e.reason());
    }
}


void MainWindow::on_actionExport_As_HTML_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (!editor)
        return;
    QString htmlFile = QFileDialog::getSaveFileName(editor,
                                 tr("Export As HTML"),
                                 extractFilePath(editor->filename()),
                                 tr("HTML Files (*.html)")
                                 );
    if (htmlFile.isEmpty())
        return;
    try {
        editor->exportAsHTML(htmlFile);
    } catch (FileError e) {
        QMessageBox::critical(editor,
                              "Error",
                              e.reason());
    }
}


void MainWindow::on_actionMove_To_Other_View_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor) {
        mEditorList->swapEditor(editor);
    }
}


void MainWindow::on_actionC_C_Reference_triggered()
{
    if (pSettings->environment().language()=="zh_CN") {
        QFileInfo fileInfo(includeTrailingPathDelimiter(pSettings->dirs().appDir())+"cppreference-zh.chm");
        if (fileInfo.exists()) {
            QDesktopServices::openUrl(QUrl::fromLocalFile(fileInfo.absoluteFilePath()));
        } else {

            QDesktopServices::openUrl(QUrl("https://qingcms.gitee.io/cppreference/20210212/zh/cpp.html"));
        }
    } else {
        QDesktopServices::openUrl(QUrl("https://en.cppreference.com/w/cpp"));
    }
}


void MainWindow::on_actionEGE_Manual_triggered()
{
    QDesktopServices::openUrl(QUrl("https://xege.org/ege-open-source"));
}

const PBookmarkModel &MainWindow::bookmarkModel() const
{
    return mBookmarkModel;
}


void MainWindow::on_actionAdd_bookmark_triggered()
{
    Editor* editor = mEditorList->getEditor();
    int line;
    if (editor && editor->pointToLine(mEditorContextMenuPos,line)) {
        if (editor->document()->count()<=0)
            return;
        QString desc = QInputDialog::getText(editor,tr("Bookmark Description"),
                                             tr("Description:"),QLineEdit::Normal,
                                             editor->document()->getString(line-1).trimmed());
        desc = desc.trimmed();
        editor->addBookmark(line,desc);
    }
}


void MainWindow::on_actionRemove_Bookmark_triggered()
{
    Editor* editor = mEditorList->getEditor();
    int line;
    if (editor && editor->pointToLine(mEditorContextMenuPos,line)) {
        editor->removeBookmark(line);
    }
}


void MainWindow::on_tableBookmark_doubleClicked(const QModelIndex &index)
{
    if (!index.isValid())
        return;
    PBookmark bookmark = mBookmarkModel->bookmark(index.row());
    if (bookmark) {
        Editor *editor= mEditorList->getEditorByFilename(bookmark->filename);
        if (editor) {
            editor->setCaretPositionAndActivate(bookmark->line,1);
        }
    }
}


void MainWindow::on_actionModify_Bookmark_Description_triggered()
{
    Editor* editor = mEditorList->getEditor();
    int line;
    if (editor && editor->pointToLine(mEditorContextMenuPos,line)) {
        PBookmark bookmark = mBookmarkModel->bookmark(editor->filename(),line);
        if (bookmark) {
            QString desc = QInputDialog::getText(editor,tr("Bookmark Description"),
                                                 tr("Description:"),QLineEdit::Normal,
                                                 bookmark->description);
            desc = desc.trimmed();
            mBookmarkModel->updateDescription(editor->filename(),line,desc);
        }
    }
}


void MainWindow::on_actionLocate_in_Files_View_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor) {
        QFileInfo fileInfo(editor->filename());
        qDebug()<<fileInfo.absoluteFilePath();
        qDebug()<<includeTrailingPathDelimiter(mFileSystemModel.rootDirectory().absolutePath());
        if (!fileInfo.absoluteFilePath().startsWith(
                    includeTrailingPathDelimiter(mFileSystemModel.rootDirectory().absolutePath()),
                    PATH_SENSITIVITY
                    )) {
            QString fileDir = extractFileDir(editor->filename());
            if (QMessageBox::question(this,
                                      tr("Change working folder"),
                                      tr("File '%1' is not in the current working folder.")
                                      .arg(extractFileName(editor->filename()))
                                      +"<br />"
                                      +tr("Do you want to change working folder to '%1'?")
                                      .arg(fileDir),
                                      QMessageBox::Yes | QMessageBox::No,
                                      QMessageBox::Yes
                                      )!=QMessageBox::Yes) {
                return;
            }
            if (!fileDir.isEmpty())
                setFilesViewRoot(fileDir,true);
            else
                return;
        }
        QModelIndex index = mFileSystemModel.index(editor->filename());
        ui->treeFiles->setCurrentIndex(index);
        ui->treeFiles->scrollTo(index, QAbstractItemView::PositionAtCenter);
        ui->tabExplorer->setCurrentWidget(ui->tabFiles);
        stretchExplorerPanel(true);
    }
}


void MainWindow::on_treeFiles_doubleClicked(const QModelIndex &index)
{
    if (index!=ui->treeFiles->currentIndex())
        return;
    QString filepath = mFileSystemModel.filePath(index);
    QFileInfo file(filepath);
    if (file.isFile()) {
        if (getFileType(filepath)==FileType::Project) {
            openProject(filepath);
        } else {
            openFile(filepath);
        }
    }
}


void MainWindow::on_actionOpen_Folder_triggered()
{
    QString folder = QFileDialog::getExistingDirectory(this,tr("Choose Working Folder"),
                                                       pSettings->environment().currentFolder());
    if (!folder.isEmpty()) {
        setFilesViewRoot(folder,true);
    }
}


void MainWindow::on_actionRun_Parameters_triggered()
{
    changeOptions(
                SettingsDialog::tr("General"),
                SettingsDialog::tr("Program Runner")
                );
}


void MainWindow::on_btnNewProblemSet_clicked()
{
    if (mOJProblemSetModel.count()>0) {
        if (QMessageBox::warning(this,
                             tr("New Problem Set"),
                             tr("The current problem set is not empty.")
                             +"<br />"
                             +tr("Do you want to save it?"),
                             QMessageBox::Yes | QMessageBox::No)==QMessageBox::Yes) {
            on_btnSaveProblemSet_clicked();
        }
    }
    mOJProblemSetNameCounter++;
    mOJProblemSetModel.create(tr("Problem Set %1").arg(mOJProblemSetNameCounter));
    ui->lblProblemSet->setText(mOJProblemSetModel.name());
}


void MainWindow::on_btnAddProblem_clicked()
{
    int startCount = mOJProblemSetModel.count();
    QString name;
    while (true) {
        name = tr("Problem %1").arg(startCount+1);
        if (!mOJProblemSetModel.problemNameUsed(name))
            break;
    }
    POJProblem problem = std::make_shared<OJProblem>();
    problem->name = name;
    mOJProblemSetModel.addProblem(problem);
    ui->lstProblemSet->setCurrentIndex(mOJProblemSetModel.index(mOJProblemSetModel.count()-1));
}


void MainWindow::on_btnRemoveProblem_clicked()
{
    QModelIndex idx = ui->lstProblemSet->currentIndex();
    if (!idx.isValid())
        return;
    mOJProblemSetModel.removeProblem(idx.row());
}


void MainWindow::on_btnSaveProblemSet_clicked()
{
    QFileDialog dialog(this);
    dialog.setWindowTitle(tr("Save Problem Set"));
    if (!mOJProblemSetModel.exportFilename().isEmpty()) {
        dialog.setDirectory(mOJProblemSetModel.exportFilename());
        dialog.selectFile(mOJProblemSetModel.exportFilename());
    } else {
        dialog.setDirectory(QDir().absolutePath());
    }
    dialog.setNameFilter(tr("Problem Set Files (*.pbs)"));
    dialog.setDefaultSuffix("pbs");
    dialog.setFileMode(QFileDialog::AnyFile);
    dialog.setAcceptMode(QFileDialog::AcceptSave);
    if (dialog.exec() == QDialog::Accepted) {
        QString fileName=dialog.selectedFiles()[0];
        QFileInfo fileInfo(fileName);
        if (fileInfo.suffix().isEmpty()) {
            fileName.append(".pbs");
        }
        QDir::setCurrent(extractFileDir(fileName));
        try {
            applyCurrentProblemCaseChanges();
            mOJProblemSetModel.saveToFile(fileName);
        } catch (FileError& error) {
            QMessageBox::critical(this,tr("Save Error"),
                                  error.reason());
        }
    }
}


void MainWindow::on_btnLoadProblemSet_clicked()
{
    QString fileName = QFileDialog::getOpenFileName(
                this,
                tr("Load Problem Set"),
                QString(),
                tr("Problem Set Files (*.pbs)"));
    if (!fileName.isEmpty()) {
        QDir::setCurrent(extractFileDir(fileName));
        try {
            mOJProblemSetModel.loadFromFile(fileName);
        } catch (FileError& error) {
            QMessageBox::critical(this,tr("Load Error"),
                                  error.reason());
        }
    }
    ui->lblProblemSet->setText(mOJProblemSetModel.name());
    ui->lstProblemSet->setCurrentIndex(mOJProblemSetModel.index(0,0));
}


void MainWindow::on_btnAddProblemCase_clicked()
{
    int startCount = mOJProblemModel.count();
    QString name;
    while (true) {
        name = tr("Problem Case %1").arg(startCount+1);
        if (!mOJProblemSetModel.problemNameUsed(name))
            break;
    }
    POJProblemCase problemCase = std::make_shared<OJProblemCase>();
    problemCase->name = name;
    problemCase->testState = ProblemCaseTestState::NotTested;
    mOJProblemModel.addCase(problemCase);
    ui->tblProblemCases->setCurrentIndex(mOJProblemModel.index(mOJProblemModel.count()-1,0));
}

void MainWindow::on_btnRunAllProblemCases_clicked()
{    
    if (mOJProblemModel.count()<=0)
        return;
    showHideMessagesTab(ui->tabProblem,ui->actionProblem);
    applyCurrentProblemCaseChanges();
    runExecutable(RunType::ProblemCases);
}


void MainWindow::on_actionC_Reference_triggered()
{
    if (pSettings->environment().language()=="zh_CN") {
        QDesktopServices::openUrl(QUrl("https://qingcms.gitee.io/cppreference/20210212/zh/c.html"));
    } else {
        QDesktopServices::openUrl(QUrl("https://en.cppreference.com/w/c"));
    }
}


void MainWindow::on_btnRemoveProblemCase_clicked()
{
    QModelIndex idx = ui->tblProblemCases->currentIndex();
    if (idx.isValid()) {
        mOJProblemModel.removeCase(idx.row());
    }
}


void MainWindow::on_btnOpenProblemAnswer_clicked()
{
    POJProblem problem = mOJProblemModel.problem();
    if (!problem || problem->answerProgram.isEmpty())
        return;
    Editor *e = mEditorList->getEditorByFilename(problem->answerProgram);
    if (e) {
        e->activate();
    }
}

bool MainWindow::openningFiles() const
{
    return mOpenningFiles;
}

QList<QAction *> MainWindow::listShortCutableActions()
{
    QList<QAction*> actions = findChildren<QAction *>(QString(), Qt::FindDirectChildrenOnly);
    return actions;
}


void MainWindow::on_actionTool_Window_Bars_triggered()
{
    bool state = ui->tabExplorer->isVisible();
    state = !state;
    ui->tabExplorer->setVisible(state);
    ui->tabMessages->setVisible(state);
    ui->actionTool_Window_Bars->setChecked(state);
}

void MainWindow::on_actionStatus_Bar_triggered()
{
    bool state = ui->statusbar->isVisible();
    state = !state;
    ui->statusbar->setVisible(state);
    ui->actionStatus_Bar->setChecked(state);
}

void MainWindow::on_actionProject_triggered()
{
    bool state = ui->actionProject->isChecked();
    ui->actionProject->setChecked(state);
    showHideInfosTab(ui->tabProject,state);
}


void MainWindow::on_actionWatch_triggered()
{
    bool state = ui->actionWatch->isChecked();
    ui->actionWatch->setChecked(state);
    showHideInfosTab(ui->tabWatch,state);
}


void MainWindow::on_actionStructure_triggered()
{
    bool state = ui->actionStructure->isChecked();
    ui->actionStructure->setChecked(state);
    showHideInfosTab(ui->tabStructure,state);
}


void MainWindow::on_actionFiles_triggered()
{
    bool state = ui->actionFiles->isChecked();
    ui->actionFiles->setChecked(state);
    showHideInfosTab(ui->tabFiles,state);
}


void MainWindow::on_actionProblem_Set_triggered()
{
    bool state = ui->actionProblem_Set->isChecked();
    ui->actionProblem_Set->setChecked(state);
    showHideInfosTab(ui->tabProblemSet,state);
}


void MainWindow::on_actionIssues_triggered()
{
    bool state = ui->actionIssues->isChecked();
    ui->actionIssues->setChecked(state);
    showHideMessagesTab(ui->tabIssues,state);
}


void MainWindow::on_actionTools_Output_triggered()
{
    bool state = ui->actionTools_Output->isChecked();
    ui->actionTools_Output->setChecked(state);
    showHideMessagesTab(ui->tabToolsOutput,state);
}


void MainWindow::on_actionDebug_Window_triggered()
{
    bool state = ui->actionDebug_Window->isChecked();
    ui->actionDebug_Window->setChecked(state);
    showHideMessagesTab(ui->tabDebug, state);
}


void MainWindow::on_actionSearch_triggered()
{
    bool state = ui->actionSearch->isChecked();
    ui->actionSearch->setChecked(state);
    showHideMessagesTab(ui->tabSearch,state);
}



void MainWindow::on_actionTODO_triggered()
{
    bool state = ui->actionTODO->isChecked();
    ui->actionTODO->setChecked(state);
    showHideMessagesTab(ui->tabTODO,state);
}


void MainWindow::on_actionBookmark_triggered()
{
    bool state = ui->actionBookmark->isChecked();
    ui->actionBookmark->setChecked(state);
    showHideMessagesTab(ui->tabBookmark,state);
}


void MainWindow::on_actionProblem_triggered()
{
    bool state = ui->actionProblem->isChecked();
    ui->actionProblem->setChecked(state);
    showHideMessagesTab(ui->tabProblem,state);
}

void MainWindow::on_actionDelete_Line_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteLine();
    }
}

void MainWindow::on_actionDuplicate_Line_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->duplicateLine();
    }
}


void MainWindow::on_actionDelete_Word_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteWord();
    }
}


void MainWindow::on_actionDelete_to_EOL_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteToEOL();
    }
}

void MainWindow::on_actionDelete_to_BOL_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteToBOL();
    }
}


void MainWindow::on_btnCaseValidateOptions_clicked()
{
    changeOptions(
                SettingsDialog::tr("Problem Set"),
                SettingsDialog::tr("Program Runner")
                );
}


void MainWindow::on_actionInterrupt_triggered()
{
    if (mDebugger->executing()) {
        //WatchView.Items.BeginUpdate();
        mDebugger->interrupt();
    }
}

void MainWindow::on_actionDelete_Last_Word_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteToWordStart();
    }
}


void MainWindow::on_actionDelete_to_Word_End_triggered()
{
    Editor *e=mEditorList->getEditor();
    if (e) {
        e->deleteToWordEnd();
    }
}


void MainWindow::on_actionNew_Header_triggered()
{
    if (!mProject)
        return;
    NewHeaderDialog dialog;
    dialog.setPath(mProject->folder());
    if (dialog.exec()==QDialog::Accepted) {
        QDir dir(dialog.path());
        if (dialog.headerName().isEmpty()
                || !dir.exists())
            return;
        QString headerFilename = includeTrailingPathDelimiter(dialog.path())+dialog.headerName();
        if (fileExists(headerFilename)){
            QMessageBox::critical(this,
                                  tr("Header Exists"),
                                  tr("Header file \"%1\" already exists!").arg(headerFilename));
            return;
        }
        QString header_macro = QFileInfo(dialog.headerName()).baseName().toUpper()+"_H";
        QStringList header;
        QString indents;
        if (pSettings->editor().tabToSpaces()) {
            indents = QString(pSettings->editor().tabWidth(),' ');
        } else {
            indents = "\t";
        }
        header.append(QString("#ifndef %1").arg(header_macro));
        header.append(QString("#define %1").arg(header_macro));
        header.append("");
        header.append("#endif");
        stringsToFile(header, headerFilename);

        mProject->addUnit(headerFilename,mProject->rootNode(),false);
        mProject->cppParser()->addFileToScan(headerFilename);
        mProject->rebuildNodes();
        mProject->saveUnits();
        parseFileList(mProject->cppParser());
        updateProjectView();

        Editor * editor = mEditorList->getEditorByFilename(headerFilename);
        if (editor){
            editor->activate();
        }
    }
    pSettings->ui().setNewClassDialogWidth(dialog.width());
    pSettings->ui().setNewClassDialogHeight(dialog.height());
}


void MainWindow::on_actionNew_Class_triggered()
{
    if (!mProject)
        return;
    NewClassDialog dialog;
    dialog.setPath(mProject->folder());
    if (dialog.exec()==QDialog::Accepted) {
        QDir dir(dialog.path());
        if (dialog.className().isEmpty()
                || dialog.sourceName().isEmpty()
                || dialog.headerName().isEmpty()
                || !dir.exists())
            return;
        QString headerFilename = includeTrailingPathDelimiter(dialog.path())+dialog.headerName();
        QString sourceFilename = includeTrailingPathDelimiter(dialog.path())+dialog.sourceName();
        if (fileExists(headerFilename)){
            QMessageBox::critical(this,
                                  tr("Header Exists"),
                                  tr("Header file \"%1\" already exists!").arg(headerFilename));
            return;
        }
        if (fileExists(sourceFilename)){
            QMessageBox::critical(this,
                                  tr("Source Exists"),
                                  tr("Source file \"%1\" already exists!").arg(sourceFilename));
            return;
        }
        QString header_macro = dialog.className().toUpper()+"_H";
        QStringList header;
        QString indents;
        if (pSettings->editor().tabToSpaces()) {
            indents = QString(pSettings->editor().tabWidth(),' ');
        } else {
            indents = "\t";
        }
        header.append(QString("#ifndef %1").arg(header_macro));
        header.append(QString("#define %1").arg(header_macro));
        header.append("");
        header.append(QString("class %1 {").arg(dialog.className()));
        header.append("public:");
        header.append("");
        header.append("private:");
        header.append("");
        header.append("};");
        header.append("");
        header.append("#endif");
        stringsToFile(header, headerFilename);
        QStringList source;
        source.append(QString("#include \"%1\"").arg(dialog.headerName()));
        source.append("");
        source.append("");
        stringsToFile(source, sourceFilename);

        mProject->addUnit(headerFilename,mProject->rootNode(),false);
        mProject->cppParser()->addFileToScan(headerFilename);
        mProject->addUnit(sourceFilename,mProject->rootNode(),false);
        mProject->cppParser()->addFileToScan(sourceFilename);
        mProject->rebuildNodes();
        mProject->saveUnits();
        parseFileList(mProject->cppParser());
        updateProjectView();

        Editor * editor = mEditorList->getEditorByFilename(headerFilename);
        if (editor){
            editor->activate();
        }
        editor = mEditorList->getEditorByFilename(sourceFilename);
    }
    pSettings->ui().setNewHeaderDialogWidth(dialog.width());
    pSettings->ui().setNewHeaderDialogHeight(dialog.height());
}


void MainWindow::on_actionGit_Create_Repository_triggered()
{
    if (ui->treeFiles->isVisible()) {
        GitManager vcsManager;
        vcsManager.createRepository(pSettings->environment().currentFolder());
        //update files view;
        int pos = ui->cbFilesPath->findText(pSettings->environment().currentFolder());
        if (pos>=0) {
            ui->cbFilesPath->setItemIcon(pos, pIconsManager->getIcon(IconsManager::FILESYSTEM_GIT));
        }
        mFileSystemModelIconProvider.setRootFolder(pSettings->environment().currentFolder());
        mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
        //update project view
        if (mProject && mProject->folder() == mFileSystemModel.rootPath()) {
            mProject->addUnit(includeTrailingPathDelimiter(mProject->folder())+".gitignore", mProject->rootNode(), true);
        } else if (mProject && mFileSystemModel.index(mProject->folder()).isValid()) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
    } else if (ui->projectView->isVisible() && mProject) {
        GitManager vcsManager;
        vcsManager.createRepository(mProject->folder());
        QString output;
        vcsManager.add(mProject->folder(), extractFileName(mProject->filename()), output);
        vcsManager.add(mProject->folder(), extractFileName(mProject->options().icon), output);
        foreach (PProjectUnit pUnit, mProject->units()) {
            vcsManager.add(mProject->folder(),extractRelativePath(mProject->folder(),pUnit->fileName()),output);
        }
        //update project view
        mProject->addUnit(includeTrailingPathDelimiter(mProject->folder())+".gitignore", mProject->rootNode(), true);
        mProject->saveAll();
        if (mProject->folder() == mFileSystemModel.rootPath()
                || mFileSystemModel.rootPath().startsWith(includeTrailingPathDelimiter(mProject->folder()), PATH_SENSITIVITY)) {

            //update files view;
            int pos = ui->cbFilesPath->findText(pSettings->environment().currentFolder());
            if (pos>=0) {
                ui->cbFilesPath->setItemIcon(pos, pIconsManager->getIcon(IconsManager::FILESYSTEM_GIT));
            }
            mFileSystemModelIconProvider.update();
            mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
        }
    }
}


void MainWindow::on_actionGit_Add_Files_triggered()
{
    if (ui->treeFiles->isVisible()) {
        GitManager vcsManager;
        QModelIndexList indices = ui->treeFiles->selectionModel()->selectedRows();
        QString output;
        foreach (const QModelIndex index,indices) {
            QFileInfo info = mFileSystemModel.fileInfo(index);
            vcsManager.add(info.absolutePath(),info.fileName(),output);
        }
        //update icons in files view
        mFileSystemModelIconProvider.update();
        mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
    } else if (ui->projectView->isVisible() && mProject) {
        GitManager vcsManager;
        QModelIndexList indices = ui->projectView->selectionModel()->selectedRows();
        foreach (const QModelIndex index,indices) {
            QModelIndex realIndex = mProjectProxyModel->mapToSource(index);
            ProjectModelNode * node = static_cast<ProjectModelNode*>(realIndex.internalPointer());
            PProjectModelNode folderNode =  mProject->pointerToNode(node);
            if (!folderNode)
                continue;
            if (folderNode->unitIndex>=0) {
                PProjectUnit unit = mProject->units()[folderNode->unitIndex];
                QFileInfo info(unit->fileName());
                QString output;
                vcsManager.add(info.absolutePath(),info.fileName(),output);
            }
        }
    }
    //update icons in project view
    if (mProject) {
        mProject->model()->beginUpdate();
        mProject->model()->endUpdate();
    }
    //update icons in files view too
    mFileSystemModelIconProvider.update();
    mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
}


void MainWindow::on_actionGit_Commit_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;

    GitManager vcsManager;
    QStringList conflicts = vcsManager.listConflicts(folder);
    if (!conflicts.isEmpty()) {
        InfoMessageBox infoBox;
        infoBox.setMessage(
                    tr("Can't commit!") + "<br />"
                    +tr("The following files are in conflicting:")+"<br />"
                           + linesToText(conflicts));
        infoBox.exec();
        return;
    }
    QString message = QInputDialog::getText(this,tr("Commit Message"),tr("Commit Message:"));
    if (message.isEmpty()) {
        QMessageBox::critical(this,
                              tr("Commit Failed"),
                              tr("Commit message shouldn't be empty!")
                              );
        return;
    }
    QString output;
    QString userName = vcsManager.getUserName(folder);
    QString userEmail = vcsManager.getUserEmail(folder);
    if (userName.isEmpty() || userEmail.isEmpty()) {
        GitUserConfigDialog dialog(folder);
        if (dialog.exec()!=QDialog::Accepted) {
            QMessageBox::critical(this,
                                  tr("Can't Commit"),
                                  tr("Git needs user info to commit."));
            return;
        }
    }
    if (vcsManager.commit(folder,message,true,output)) {
        //update project view
        if (mProject) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        //update files view
        mFileSystemModelIconProvider.update();
        mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
    }
    if (!output.isEmpty()) {
        InfoMessageBox infoBox;
        infoBox.showMessage(output);
    }
}


void MainWindow::on_actionGit_Restore_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitManager vcsManager;
    QString output;
    if (vcsManager.restore(folder,"",output)) {

        //update project view
        if (mProject) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        //update files view
        mFileSystemModelIconProvider.update();
        mFileSystemModel.setIconProvider(&mFileSystemModelIconProvider);
    }
    if (!output.isEmpty()) {
        InfoMessageBox infoBox;
        infoBox.showMessage(output);
    }
}


void MainWindow::on_actionWebsite_triggered()
{
    if (pSettings->environment().language()=="zh_CN") {
        QDesktopServices::openUrl(QUrl("https://royqh1979.gitee.io/redpandacpp/docsy/docs/"));
    } else {
        QDesktopServices::openUrl(QUrl("https://sourceforge.net/projects/redpanda-cpp/"));
    }
}


void MainWindow::on_actionGit_Branch_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitBranchDialog dialog(folder);
    if (dialog.exec()==QDialog::Accepted) {
        //update project view
        if (mProject) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        //update files view
        setFilesViewRoot(pSettings->environment().currentFolder());
    }
}


void MainWindow::on_actionGit_Merge_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitMergeDialog dialog(folder);
    if (dialog.exec()==QDialog::Accepted) {
        //update project view
        if (mProject) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        //update files view
        setFilesViewRoot(pSettings->environment().currentFolder());
    }
}


void MainWindow::on_actionGit_Log_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitLogDialog dialog(folder);
    if (dialog.exec()==QDialog::Accepted) {
        qDebug()<<"yes";
        //update project view
        if (mProject) {
            mProject->model()->beginUpdate();
            mProject->model()->endUpdate();
        }
        //update files view
        setFilesViewRoot(pSettings->environment().currentFolder());
    }
    return ;
}


void MainWindow::on_actionGit_Remotes_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitRemoteDialog dialog(folder);
    dialog.exec();
}


void MainWindow::on_actionGit_Fetch_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitManager manager;
    QString output;
    if (!manager.fetch(folder,output)) {
        InfoMessageBox infoBox;
        infoBox.showMessage(output);
    }
}


void MainWindow::on_actionGit_Pull_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitManager manager;
    QString branch;
    if (!manager.hasRepository(folder,branch))
        return;
    QString remote = manager.getBranchRemote(folder,branch);
    QString output;
    if (remote.isEmpty()) {
        GitRemoteDialog dialog(folder);
        QString remote = dialog.chooseRemote();
        if (remote.trimmed().isEmpty())
            return;
        if (!manager.setBranchUpstream(folder,branch,remote,output)) {
            InfoMessageBox infoBox;
            infoBox.showMessage(output);
            return;
        }
    }
    manager.pull(folder,output);
    if (!output.isEmpty()) {
        InfoMessageBox infoBox;
        infoBox.showMessage(output);
    }
}


void MainWindow::on_actionGit_Push_triggered()
{
    QString folder;
    if (ui->treeFiles->isVisible()) {
        folder = pSettings->environment().currentFolder();
    } else if (ui->projectView->isVisible() && mProject) {
        folder = mProject->folder();
    }
    if (folder.isEmpty())
        return;
    GitManager manager;
    QString branch;
    if (!manager.hasRepository(folder,branch))
        return;
    QString remote = manager.getBranchRemote(folder,branch);
    QString output;
    if (remote.isEmpty()) {
        GitRemoteDialog dialog(folder);
        QString remote = dialog.chooseRemote();
        if (remote.trimmed().isEmpty())
            return;
        manager.push(folder,remote,branch,output);
        if (!output.isEmpty()) {
            InfoMessageBox infoBox;
            infoBox.showMessage(output);
        }
    } else {
        if (!output.isEmpty()) {
            InfoMessageBox infoBox;
            infoBox.showMessage(output);
        }
    }
}


void MainWindow::on_actionFilesView_Hide_Non_Support_Files_toggled(bool /* arg1 */)
{
    mFileSystemModel.setNameFilterDisables(!ui->actionFilesView_Hide_Non_Support_Files->isChecked());
    if (pSettings->environment().hideNonSupportFilesInFileView()
            != ui->actionFilesView_Hide_Non_Support_Files->isChecked()) {
        pSettings->environment().setHideNonSupportFilesInFileView(ui->actionFilesView_Hide_Non_Support_Files->isChecked());
        pSettings->environment().save();
    }
}


void MainWindow::on_actionToggle_Block_Comment_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->toggleBlockComment();
    }
}


void MainWindow::on_actionMatch_Bracket_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->matchBracket();
    }
}


void MainWindow::on_btnProblemCaseInputFileName_clicked()
{
    QString fileName = QFileDialog::getOpenFileName(
                this,
                tr("Choose Input Data File"),
                QString(),
                tr("All files (*.*)"));
    if (!fileName.isEmpty()) {
        QModelIndex idx = ui->tblProblemCases->currentIndex();
        POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
        if (!problemCase)
            return;
        if (problemCase->inputFileName == fileName)
            return;
        problemCase->inputFileName = fileName;
        if (problemCase->expectedOutputFileName.isEmpty()
                && problemCase->expected.isEmpty()
                && QFileInfo(fileName).suffix()=="in") {
            QString expectedFileName;
            expectedFileName = fileName.mid(0,fileName.length()-2)+"ans";
            if (fileExists(expectedFileName)) {
                problemCase->expectedOutputFileName = expectedFileName;
            } else {
                expectedFileName = fileName.mid(0,fileName.length()-2)+"out";
                if (fileExists(expectedFileName))
                    problemCase->expectedOutputFileName = expectedFileName;
            }
        }
        fillProblemCaseInputAndExpected(problemCase);
    }
}


void MainWindow::on_btnProblemCaseClearExpectedOutputFileName_clicked()
{
    QModelIndex idx = ui->tblProblemCases->currentIndex();
    POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
    if (!problemCase)
        return;
    problemCase->expectedOutputFileName = "";
    fillProblemCaseInputAndExpected(problemCase);
}


void MainWindow::on_btnProblemCaseClearInputFileName_clicked()
{
    QModelIndex idx = ui->tblProblemCases->currentIndex();
    POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
    if (!problemCase)
        return;
    problemCase->inputFileName = "";
    fillProblemCaseInputAndExpected(problemCase);
}


void MainWindow::on_btnProblemCaseExpectedOutputFileName_clicked()
{
    QString fileName = QFileDialog::getOpenFileName(
                this,
                tr("Choose Expected Output Data File"),
                QString(),
                tr("All files (*.*)"));
    if (!fileName.isEmpty()) {
        QModelIndex idx = ui->tblProblemCases->currentIndex();
        POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
        if (!problemCase)
            return;
        if (problemCase->expectedOutputFileName == fileName)
            return;
        problemCase->expectedOutputFileName = fileName;
        fillProblemCaseInputAndExpected(problemCase);
    }
}


void MainWindow::on_txtProblemCaseOutput_cursorPositionChanged()
{
    QTextCursor cursor = ui->txtProblemCaseOutput->textCursor();
    int val = ui->txtProblemCaseOutput->verticalScrollBar()->value();
    int line = cursor.block().firstLineNumber();
    //ui->lblProblemCaseOutput->setText(tr("Line %1").arg(cursor.block().firstLineNumber()+1));

    QTextBlock block = ui->txtProblemCaseExpected->document()->findBlockByLineNumber(line);
    if (!block.isValid())
        return;
    cursor = QTextCursor(block);
    ui->txtProblemCaseExpected->setTextCursor(cursor);
    ui->txtProblemCaseExpected->verticalScrollBar()->setValue(val);
}


void MainWindow::on_txtProblemCaseExpected_cursorPositionChanged()
{
    QTextCursor cursor = ui->txtProblemCaseExpected->textCursor();
    //ui->lblProblemCaseExpected->setText(tr("Line %1").arg(cursor.block().firstLineNumber()+1));
}


void MainWindow::on_txtProblemCaseInput_cursorPositionChanged()
{
    QTextCursor cursor = ui->txtProblemCaseInput->textCursor();
    //ui->lblProblemCaseInput->setText(tr("Line %1").arg(cursor.block().firstLineNumber()+1));
}


void MainWindow::on_actionMove_Selection_Up_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->moveSelUp();
    }
}


void MainWindow::on_actionMove_Selection_Down_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor != NULL ) {
        editor->moveSelDown();
    }
}

void MainWindow::on_actionConvert_to_UTF_8_BOM_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    if (QMessageBox::warning(this,tr("Confirm Convertion"),
                   tr("The editing file will be saved using %1 encoding. <br />This operation can't be reverted. <br />Are you sure to continue?")
                   .arg(ENCODING_UTF8_BOM),
                   QMessageBox::Yes, QMessageBox::No)!=QMessageBox::Yes)
        return;
    editor->convertToEncoding(ENCODING_UTF8_BOM);
}


void MainWindow::on_actionEncode_in_UTF_8_BOM_triggered()
{
    Editor * editor = mEditorList->getEditor();
    if (editor == nullptr)
        return;
    try {
        editor->setEncodingOption(ENCODING_UTF8_BOM);
    } catch(FileError e) {
        QMessageBox::critical(this,tr("Error"),e.reason());
    }
}


void MainWindow::on_actionCompiler_Options_triggered()
{
    changeOptions(
                SettingsDialog::tr("Compiler Set"),
                SettingsDialog::tr("Compiler")
                );
}

void MainWindow::on_dockExplorer_dockLocationChanged(const Qt::DockWidgetArea &area)
{
    setDockExplorerToArea(area);
}


void MainWindow::on_dockMessages_dockLocationChanged(const Qt::DockWidgetArea &area)
{
    setDockMessagesToArea(area);
}


void MainWindow::on_actionToggle_Explorer_Panel_triggered()
{
    stretchExplorerPanel(ui->tabExplorer->isShrinked());
}


void MainWindow::on_actionToggle_Messages_Panel_triggered()
{
    stretchMessagesPanel(ui->tabMessages->isShrinked());
}


void MainWindow::on_chkIgnoreSpaces_stateChanged(int /*arg1*/)
{
    pSettings->executor().setIgnoreSpacesWhenValidatingCases(ui->chkIgnoreSpaces->isChecked());
}



void MainWindow::on_actionRaylib_Manual_triggered()
{
    if (pSettings->environment().language()=="zh_CN") {
        QDesktopServices::openUrl(QUrl("https://zhuanlan.zhihu.com/p/458335134"));
    } else {
        QDesktopServices::openUrl(QUrl("https://www.raylib.com/"));
    }
}