/*
 * 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 <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 "settingsdialog/settingsdialog.h"
#include "compiler/compilermanager.h"
#include <QGuiApplication>
#include <QClipboard>
#include <QMessageBox>
#include <QTextCodec>
#include "cpprefacter.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),
      mOpenClosingBottomPanel(false),
      mOpenClosingLeftPanel(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);
    setupActions();
    ui->EditorTabsRight->setVisible(false);

    mCompilerSet = new QComboBox();
    mCompilerSet->setMinimumWidth(200);
    ui->toolbarCompilerSet->addWidget(mCompilerSet);
    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->lstProblemCases->setModel(&mOJProblemModel);
    connect(ui->lstProblemSet->selectionModel(),
            &QItemSelectionModel::currentRowChanged,
            this, &MainWindow::onProblemSetIndexChanged);
    connect(ui->lstProblemCases->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(true);
    setFilesViewRoot(pSettings->environment().currentFolder());
    for (int i=1;i<mFileSystemModel.columnCount();i++) {
        ui->treeFiles->hideColumn(i);
    }

    //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");

    buildContextMenus();
    updateAppTitle();
    //applySettings();
    applyUISettings();
    updateProjectView();
    updateEditorActions();
    updateCaretActions();
    updateEditorColorSchemes();
    updateShortcuts();
    updateTools();
    updateEditorSettings();
}

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

void MainWindow::updateForEncodingInfo() {
    Editor * editor = mEditorList->getEditor();
    if (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);
    } else {
        mFileEncodingStatus->setText("");
        ui->actionAuto_Detect->setChecked(false);
        ui->actionEncode_in_ANSI->setChecked(false);
        ui->actionEncode_in_UTF_8->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->actionConvert_to_ANSI->setEnabled(false);
        ui->actionConvert_to_UTF_8->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->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->actionCopy->setEnabled(e->selAvail());
        ui->actionCut->setEnabled(e->selAvail());
        ui->actionFoldAll->setEnabled(e->lines()->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->lines()->count()>0);
        ui->actionToggleComment->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionUnIndent->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionUnfoldAll->setEnabled(e->lines()->count()>0);
        ui->actionDelete_Line->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionDelete_Word->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionDuplicate_Line->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionDelete_to_BOL->setEnabled(!e->readOnly() && e->lines()->count()>0);
        ui->actionDelete_to_EOL->setEnabled(!e->readOnly() && e->lines()->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->lines()->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 baseColor = palette().color(QPalette::Base);
    item = pColorManager->getItem(schemeName, SYNS_AttrPreprocessor);
    if (item) {
        mHeaderCompletionPopup->setSuggestionColor(item->foreground());
    } else  {
        mHeaderCompletionPopup->setSuggestionColor(palette().color(QPalette::Text));
    }
    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);
    } else {
        QPalette pal = palette();
        mCompletionPopup->setPalette(pal);
        mHeaderCompletionPopup->setPalette(pal);
        ui->classBrowser->setPalette(pal);
    }
}

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->txtProblemCaseOutput->setFont(caseEditorFont);
    ui->txtProblemCaseExpected->setFont(caseEditorFont);

    mTcpServer.close();
    int idxProblem = ui->tabMessages->indexOf(ui->tabProblem);
    ui->tabMessages->setTabEnabled(idxProblem,pSettings->executor().enableProblemSet());
    int idxProblemSet = ui->tabInfos->indexOf(ui->tabProblemSet);
    ui->tabInfos->setTabEnabled(idxProblemSet,pSettings->executor().enableProblemSet());
    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."));
            }
        }
        if (idxProblem<0)
            ui->tabMessages->addTab(ui->tabProblem,tr("Problem"));
        if (idxProblemSet<0)
            ui->tabInfos->addTab(ui->tabProblemSet, tr("Problem Set"));
    } else {
        if (idxProblem>=0)
            ui->tabMessages->removeTab(idxProblem);
        if (idxProblemSet>=0)
            ui->tabInfos->removeTab(idxProblemSet);
    }
    ui->actionInterrupt->setVisible(pSettings->debugger().useGDBServer());
    //icon sets for editors
    updateEditorSettings();
    updateDebuggerSettings();
    updateActionIcons();
}

void MainWindow::applyUISettings()
{
    const Settings::UI& settings = pSettings->ui();
    restoreGeometry(settings.mainWindowGeometry());
    restoreState(settings.mainWindowState());
    ui->actionTool_Window_Bars->setChecked(settings.showToolWindowBars());
    ui->tabInfos->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->actionCompile_Log->setChecked(settings.showCompileLog());
    showHideMessagesTab(ui->tabCompilerOutput,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());
    //we can't show/hide left/bottom panels here, cause mainwindow layout is not calculated
}

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

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()
{
    applySettings();
}

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().openedFiles().size()==0) {
        mMenuRecentFiles->setEnabled(false);
    } else {
        mMenuRecentFiles->setEnabled(true);
        for (const QString& filename: pSettings->history().openedFiles()) {
            QAction* action = new QAction(filename,mMenuRecentFiles);
            connect(action, &QAction::triggered, [&filename,this](bool){
                openFile(filename);
            });
            mMenuRecentFiles->addAction(action);
        }
    }

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

}

void MainWindow::updateClassBrowserForEditor(Editor *editor)
{
    if (!editor) {
        mClassBrowserModel.setParser(nullptr);
        mClassBrowserModel.setCurrentFile("");
        mClassBrowserModel.clear();
        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(findChildren<QAction*>());
}

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

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

void MainWindow::updateStatusbarForLineCol()
{
    Editor* e = mEditorList->getEditor();
    if (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->lines()->count())
                .arg(e->lines()->getTextLength());
        mFileInfoStatus->setText(msg);
    } else {
        mFileInfoStatus->setText("");
    }
}

void MainWindow::updateForStatusbarModeInfo()
{
    Editor* e = mEditorList->getEditor();
    if (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() : ENCODING_AUTO_DETECT;
        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->tabInfos->setCurrentWidget(ui->tabProject);
    openCloseLeftPanel(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);
        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)
{
    bool oldCodeCompletion = pSettings->codeCompletion().enabled();
    PSettingsDialog settingsDialog = SettingsDialog::optionDialog();
    if (!groupName.isEmpty()) {
        settingsDialog->setCurrentWidget(widgetName, groupName);
    }
    settingsDialog->exec();
    if (settingsDialog->appShouldQuit()) {
        mShouldRemoveAllSettings = true;
        close();
        return;
    }

    bool newCodeCompletion = pSettings->codeCompletion().enabled();
    if (!oldCodeCompletion && newCodeCompletion) {
        Editor *e = mEditorList->getEditor();
        if (mProject && !e) {
            scanActiveProject(true);
        } else if (mProject && e && e->inProject()) {
            scanActiveProject(true);
        } else if (e) {
            e->reparse();
        }
    }

}

void MainWindow::setupActions() {

}

void MainWindow::updateCompilerSet()
{
    mCompilerSet->blockSignals(true);
    mCompilerSet->clear();
    for (size_t i=0;i<pSettings->compilerSets().list().size();i++) {
        mCompilerSet->addItem(pSettings->compilerSets().list()[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: mFilesViewToolbar->findChildren<QToolButton *>()) {
        btn->setIconSize(iconSize);
    }

    ui->tabInfos->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->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));

    //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));

    //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);

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


    int idx = ui->tabInfos->indexOf(ui->tabWatch);
    if (idx>=0)
        ui->tabInfos->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_RUN_ADD_WATCH));
    idx = ui->tabInfos->indexOf(ui->tabProject);
    if (idx>=0)
        ui->tabInfos->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_PROJECT_NEW));
    idx = ui->tabInfos->indexOf(ui->tabFiles);
    if (idx>=0)
        ui->tabInfos->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_FILES));
    idx = ui->tabInfos->indexOf(ui->tabStructure);
    if (idx>=0)
        ui->tabInfos->setTabIcon(idx,pIconsManager->getIcon(IconsManager::ACTION_VIEW_CLASSBROWSER));
    idx = ui->tabInfos->indexOf(ui->tabProblemSet);
    if (idx>=0)
        ui->tabInfos->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->tabCompilerOutput);
    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
    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->text(),
                                          e->fileEncoding() == ENCODING_ASCII, mProject);
    } else {
        mCompilerManager->checkSyntax(e->filename(),e->text(),
                                          e->fileEncoding() == ENCODING_ASCII, 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->filename = mProject->executable();
        }
        updateCompileActions();
        openCloseBottomPanel(true);
        ui->tabMessages->setCurrentWidget(ui->tabCompilerOutput);
        mCompilerManager->compileProject(mProject,rebuild);
        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->filename = getCompiledExecutableName(editor->filename());
            }
            updateCompileActions();
            openCloseBottomPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabCompilerOutput);
            mCompilerManager->compile(editor->filename(),editor->fileEncoding(),rebuild);
            updateAppTitle();
            return true;
        }
    }
    return false;
}

void MainWindow::runExecutable(const QString &exeName,const QString &filename,RunType runType)
{
    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());
    } else if (runType == RunType::ProblemCases) {
        POJProblem problem = mOJProblemModel.problem();
        if (problem) {
            mCompilerManager->runProblem(exeName,params,QFileInfo(exeName).absolutePath(),
                                         problem->cases);
            openCloseBottomPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabProblem);
        }
    } else if (runType == RunType::CurrentProblemCase) {
        QModelIndex index = ui->lstProblemCases->currentIndex();
        if (index.isValid()) {
            POJProblemCase problemCase =mOJProblemModel.getCase(index.row());
            mCompilerManager->runProblem(exeName,params,QFileInfo(exeName).absolutePath(),
                                     problemCase);
            openCloseBottomPanel(true);
            ui->tabMessages->setCurrentWidget(ui->tabProblem);
        }
    }
    updateCompileActions();
    updateAppTitle();
}

void MainWindow::runExecutable(RunType runType)
{
    CompileTarget target =getCompileTarget();
    if (target == CompileTarget::Project) {
        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;
            compile();
            return;
        }
        runExecutable(mProject->executable(),mProject->filename(),runType);
    } else {
        Editor * editor = mEditorList->getEditor();
        if (editor != NULL ) {
            if (editor->modified() || editor->isNew()) {
                if (!editor->save(false,false))
                    return;
            }
            QString exeName= getCompiledExecutableName(editor->filename());
            runExecutable(exeName,editor->filename(),runType);
        }
    }
}

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;
    switch(getCompileTarget()) {
    case CompileTarget::Project:
        // Check if we enabled proper options
        debugEnabled = mProject->getCompilerOption("-g3")!='0';
        stripEnabled = mProject->getCompilerOption("-s")!='0';
        // 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->setCompilerOption("-g3",'1');
            mProject->setCompilerOption("-s",'0');

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

            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
            mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;

            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;

                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;
            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(filePath))
            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().includes,
                          pSettings->debugger().skipProjectLibraries());
        includeOrSkipDirs(mProject->options().libs,
                          pSettings->debugger().skipProjectLibraries());
        break;
    case CompileTarget::File: {
            // Check if we enabled proper options
            debugEnabled = compilerSet->getOptionValue("-g3")!='0';
            stripEnabled = compilerSet->getOptionValue("-s")!='0';
            // 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->setOption("-g3",'1');
                compilerSet->setOption("-s",'0');

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

                mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;

                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;
                        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;
                            compile();
                            return;
                        }
                    }
                }

                prepareDebugger();
                QString filePath = debugFile.filePath().replace('\\','/');
                if (!mDebugger->start(filePath))
                    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(excludeTrailingPathDelimiter(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)
{
    openCloseBottomPanel(true);
    showSearchReplacePanel(showReplace);
    ui->tabMessages->setCurrentWidget(ui->tabSearch);
}

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

void MainWindow::openCloseBottomPanel(bool open)
{
//    if Assigned(fReportToolWindow) then
//      Exit;
    if (mOpenClosingBottomPanel)
        return;
    mOpenClosingBottomPanel = true;
    auto action = finally([this]{
        mOpenClosingBottomPanel = false;
    });
    // Switch between open and close
    if (open) {
        QList<int> sizes = ui->splitterMessages->sizes();
        int tabHeight = ui->tabMessages->tabBar()->height();
        ui->tabMessages->setMinimumHeight(tabHeight+5);
        int totalSize = sizes[0] + sizes[1];
        sizes[1] = mBottomPanelHeight;
        sizes[0] = std::max(1,totalSize - sizes[1]);
        ui->splitterMessages->setSizes(sizes);
    } else {
        QList<int> sizes = ui->splitterMessages->sizes();
        mBottomPanelHeight = sizes[1];
        int totalSize = sizes[0] + sizes[1];
        int tabHeight = ui->tabMessages->tabBar()->height();
        ui->tabMessages->setMinimumHeight(tabHeight);
        sizes[1] = tabHeight;
        sizes[0] = std::max(1,totalSize - sizes[1]);
        ui->splitterMessages->setSizes(sizes);
    }
    mBottomPanelOpenned = open;
    QSplitterHandle* handle = ui->splitterMessages->handle(1);
    handle->setEnabled(open);
}

void MainWindow::openCloseLeftPanel(bool open)
{
    if (mOpenClosingLeftPanel)
        return;
    mOpenClosingLeftPanel = true;
    auto action = finally([this]{
        mOpenClosingLeftPanel = false;
    });
    // Switch between open and close
    if (open) {
        QList<int> sizes = ui->splitterInfos->sizes();
        int tabWidth = ui->tabInfos->tabBar()->width();
        ui->tabInfos->setMinimumWidth(tabWidth+5);
        int totalSize = sizes[0] + sizes[1];
        sizes[0] = mLeftPanelWidth;
        sizes[1] = std::max(1,totalSize - sizes[0]);
        ui->splitterInfos->setSizes(sizes);
    } else {
        QList<int> sizes = ui->splitterInfos->sizes();
        mLeftPanelWidth = sizes[0];
        int totalSize = sizes[0] + sizes[1];
        int tabWidth = ui->tabInfos->tabBar()->width();
        ui->tabInfos->setMinimumWidth(tabWidth);
        sizes[0] = tabWidth;
        sizes[1] = std::max(1,totalSize - sizes[0]);
        ui->splitterInfos->setSizes(sizes);
    }
    mLeftPanelOpenned = open;
    QSplitterHandle* handle = ui->splitterInfos->handle(1);
    handle->setEnabled(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->tabInfos->currentIndex());

    // Focus on the debugging buttons
    ui->tabInfos->setCurrentWidget(ui->tabWatch);
    ui->tabMessages->setCurrentWidget(ui->tabDebug);
    ui->debugViews->setCurrentWidget(ui->tabLocals);
    openCloseBottomPanel(true);
    openCloseLeftPanel(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;
    //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() : ENCODING_AUTO_DETECT;
        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().useUTF8ByDefault()?ENCODING_UTF8:ENCODING_AUTO_DETECT,
                                               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..."),
                ui->lstProblemSet
                );
    connect(mProblem_Properties, &QAction::triggered,
            [this]() {
        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();
            }
        }
    });
    mProblem_OpenSource=createActionFor(
                tr("Open Source File"),
                ui->lstProblemSet
                );
    connect(mProblem_OpenSource, &QAction::triggered,
            [this]() {
        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();
            }
        }
    });

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

    //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]() {
        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());
                }
            }
        }
    });
    mBookmark_RemoveAll=createActionFor(
                tr("Remove All Bookmarks"),
                ui->tableBookmark);
    connect(mBookmark_RemoveAll, &QAction::triggered,
            [this]() {
        mBookmarkModel->clear();
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor * editor = (*mEditorList)[i];
            editor->clearBookmarks();
        }
    });
    mBookmark_Modify=createActionFor(
                tr("Modify Description"),
                ui->tableBookmark);
    connect(mBookmark_Modify, &QAction::triggered,
            [this]() {
        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);
            }
        }
    });

    //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]() {
        pSettings->debugger().setShowDetailLog(mDebugConsole_ShowDetailLog->isChecked());
        pSettings->debugger().save();
    });
    mDebugConsole_Copy=createActionFor(
                tr("Copy"),
                ui->debugConsole,
                QKeySequence("Ctrl+C"));
    connect(mDebugConsole_Copy, &QAction::triggered,
            [this]() {
        ui->debugConsole->copy();
    });
    mDebugConsole_Paste=createActionFor(
                tr("Paste"),
                ui->debugConsole,
                QKeySequence("Ctrl+V"));
    connect(mDebugConsole_Paste, &QAction::triggered,
            [this]() {
        ui->debugConsole->paste();
    });
    mDebugConsole_SelectAll=createActionFor(
                tr("Select All"),
                ui->debugConsole);
    connect(mDebugConsole_SelectAll, &QAction::triggered,
            [this]() {
        ui->debugConsole->selectAll();
    });
    mDebugConsole_Clear=createActionFor(
                tr("Clear"),
                ui->debugConsole);
    connect(mDebugConsole_Clear, &QAction::triggered,
            [this]() {
        ui->debugConsole->clear();
    });

    //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](){
        QModelIndex index = ui->tableIssues->selectionModel()->currentIndex();
        PCompileIssue issue = ui->tableIssues->issue(index);
        if (issue) {
            QClipboard* clipboard = QApplication::clipboard();
            clipboard->setText(issue->description);
        }
    });
    mTableIssuesCopyAllAction = createActionFor(
                tr("Copy all"),
                ui->tableIssues,
                QKeySequence("Ctrl+Shift+C"));
    connect(mTableIssuesCopyAllAction,&QAction::triggered,
            [this](){
        QClipboard* clipboard=QGuiApplication::clipboard();
        QMimeData * mimeData = new QMimeData();
        mimeData->setText(ui->tableIssues->toTxt());
        mimeData->setHtml(ui->tableIssues->toHtml());
        clipboard->clear();
        clipboard->setMimeData(mimeData);
    });
    mTableIssuesClearAction = createActionFor(
                tr("Clear"),
                ui->tableIssues);
    connect(mTableIssuesClearAction,&QAction::triggered,
            [this](){
        clearIssues();
    });

    //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](){
       int index = ui->cbSearchHistory->currentIndex();
       if (index>=0) {
           mSearchResultModel.removeSearchResults(index);
       }
    });
    mSearchViewClearAllAction = createActionFor(
                tr("Clear all searches"),
                ui->searchHistoryPanel);
    connect(mSearchViewClearAllAction,&QAction::triggered,
            [this]() {
       mSearchResultModel.clear();
    });

    //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](){
        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);
            }
        }
    });
    mBreakpointViewRemoveAllAction = createActionFor(
                tr("Remove All Breakpoints"),
                ui->tblBreakpoints);
    connect(mBreakpointViewRemoveAllAction,&QAction::triggered,
            [this](){
        pMainWindow->debugger()->deleteBreakpoints();
        for (int i=0;i<mEditorList->pageCount();i++) {
            Editor * e = (*(mEditorList))[i];
            if (e) {
                e->resetBreakpoints();
            }
        }
    });
    mBreakpointViewRemoveAction = createActionFor(
                tr("Remove Breakpoint"),
                ui->tblBreakpoints);
    connect(mBreakpointViewRemoveAction,&QAction::triggered,
            [this](){
        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);
            }
        }
    });

    //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](){
        if (ui->projectView->currentIndex().isValid()) {
            ui->projectView->edit(ui->projectView->currentIndex());
        }
    });
    mProject_Add_Folder = createActionFor(
                tr("Add Folder"),
                ui->projectView);
    connect(mProject_Add_Folder, &QAction::triggered,
            [this](){
        if (!mProject)
            return;
        QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
        if (!current.isValid()) {
            return;
        }
        FolderNode * node = static_cast<FolderNode*>(current.internalPointer());
        PFolderNode 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();
        }
    });
    mProject_Rename_Folder = createActionFor(
                tr("Rename Folder"),
                ui->projectView);
    connect(mProject_Rename_Folder, &QAction::triggered,
            [this](){
        if (ui->projectView->currentIndex().isValid()) {
            ui->projectView->edit(ui->projectView->currentIndex());
        }
    });
    mProject_Remove_Folder = createActionFor(
                tr("Remove Folder"),
                ui->projectView);
    connect(mProject_Remove_Folder, &QAction::triggered,
            [this](){
        if (!mProject)
            return;
        QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->currentIndex());
        if (!current.isValid()) {
            return;
        }
        FolderNode * node = static_cast<FolderNode*>(current.internalPointer());
        PFolderNode folderNode =  mProject->pointerToNode(node);
        if (!folderNode)
            return;
        if (folderNode->unitIndex>=0)
            return;
        mProject->removeFolder(folderNode);
        mProject->saveOptions();
    });

    //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](){
        pSettings->ui().setClassBrowserSortAlpha(mClassBrowser_Sort_By_Name->isChecked());
        pSettings->ui().save();
        mClassBrowserModel.fillStatements();
    });
    connect(mClassBrowser_Sort_By_Type, &QAction::toggled,
            [this](){
        pSettings->ui().setClassBrowserSortType(mClassBrowser_Sort_By_Type->isChecked());
        pSettings->ui().save();
        mClassBrowserModel.fillStatements();
    });
    connect(mClassBrowser_Show_Inherited, &QAction::toggled,
            [this](){
        pSettings->ui().setClassBrowserShowInherited(mClassBrowser_Show_Inherited->isChecked());
        pSettings->ui().save();
        mClassBrowserModel.fillStatements();
    });

    connect(mClassBrowser_goto_definition,&QAction::triggered,
            [this](){
        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);
        }
    });

    connect(mClassBrowser_goto_declaration,&QAction::triggered,
            [this](){
        on_classBrowser_doubleClicked(ui->classBrowser->currentIndex());
    });

    //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_Open = createActionFor(
                tr("Open in Editor"),
                ui->treeFiles);
    connect(mFilesView_Open, &QAction::triggered,
            [this]() {
        QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
        if (!path.isEmpty() && QFileInfo(path).isFile()) {
            Editor *editor=mEditorList->getEditorByFilename(path);
            if (editor)
                editor->activate();
        }
    });
    mFilesView_OpenWithExternal = createActionFor(
                tr("Open in External Program"),
                ui->treeFiles);
    connect(mFilesView_OpenWithExternal, &QAction::triggered,
            [this]() {
        QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
        if (!path.isEmpty() && QFileInfo(path).isFile()) {
            QDesktopServices::openUrl(QUrl::fromLocalFile(path));
        }
    });
    mFilesView_OpenInTerminal = createActionFor(
                tr("Open in Terminal"),
                ui->treeFiles);
    mFilesView_OpenInTerminal->setIcon(ui->actionOpen_Terminal->icon());
    connect(mFilesView_OpenInTerminal, &QAction::triggered,
            [this]() {
        QString path = mFileSystemModel.filePath(ui->treeFiles->currentIndex());
        if (!path.isEmpty()) {
            QFileInfo fileInfo(path);
#ifdef Q_OS_WIN
            openShell(fileInfo.path(),"cmd.exe");
#else
            openShell(fileInfo.path(),pSettings->environment().terminalPath());
#endif
        }
    });
    mFilesView_OpenInExplorer = createActionFor(
                tr("Open in Windows Explorer"),
                ui->treeFiles);
    mFilesView_OpenInExplorer->setIcon(ui->actionOpen_Containing_Folder->icon());
    connect(mFilesView_OpenInExplorer, &QAction::triggered,
            [this]() {
        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));
            }
        }
    });

    //toolbar for files view
    mFilesViewToolbar = new QWidget();
    {
        QVBoxLayout* layout = dynamic_cast<QVBoxLayout*>( ui->tabFiles->layout());
        layout->insertWidget(0,mFilesViewToolbar);
        QHBoxLayout* hlayout =  new QHBoxLayout();
        hlayout->setContentsMargins(2,2,2,2);
        mFilesViewToolbar->setLayout(hlayout);
        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);
        hlayout->addStretch();
    }

}

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

    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);
}

void MainWindow::maximizeEditor()
{
    if (mLeftPanelOpenned || mBottomPanelOpenned) {
        openCloseBottomPanel(false);
        openCloseLeftPanel(false);
    } else {
        openCloseBottomPanel(true);
        openCloseLeftPanel(true);
    }
}

void MainWindow::openShell(const QString &folder, const QString &shellCommand)
{
    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;
    if (pSettings->compilerSets().defaultSet()) {
        foreach(const QString& dir, pSettings->compilerSets().defaultSet()->binDirs()) {
            pathAdded.append(dir);
        }
    }
    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;
    int unitIndex = -1;
    QModelIndex current = mProjectProxyModel->mapToSource(ui->projectView->selectionModel()->currentIndex());
    if (current.isValid() && mProject) {
        FolderNode * node = static_cast<FolderNode*>(current.internalPointer());
        PFolderNode 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;
        }
    }
    QMenu menu(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) {
        menu.addAction(mProject_Rename_Unit);
    }
    menu.addSeparator();
    if (onFolder) {
        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();
    menu.addAction(ui->actionProject_options);

    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)
{

    QMenu menu(this);
    menu.addAction(ui->actionOpen_Folder);
    menu.addSeparator();
    menu.addAction(mFilesView_Open);
    menu.addAction(mFilesView_OpenWithExternal);
    menu.addSeparator();
    menu.addAction(mFilesView_OpenInTerminal);
    menu.addAction(mFilesView_OpenInExplorer);
    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());
    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](){
            QFileDialog dialog;
            QString filename = QFileDialog::getOpenFileName(
                        this,
                        tr("Select Answer Source File"),
                        QString(),
                        tr("C/C++Source Files (*.c *.cpp *.cc *.cxx)"),
                        nullptr,
                        dialog.options() | QFileDialog::DontUseNativeDialog);
            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::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->lstProblemCases->setCurrentIndex(mOJProblemModel.index(0,0));
        } else {
            onProblemCaseIndexChanged(QModelIndex(),QModelIndex());
        }
        openCloseBottomPanel(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->btnRemoveProblemCase->setEnabled(true);
            ui->txtProblemCaseInput->setPlainText(problemCase->input);
            ui->txtProblemCaseInput->setReadOnly(false);
            ui->txtProblemCaseExpected->setPlainText(problemCase->expected);
            ui->txtProblemCaseExpected->setReadOnly(false);
            updateProblemCaseOutput(problemCase);
            return;
        }
    }
    ui->btnRemoveProblemCase->setEnabled(false);
    ui->txtProblemCaseInput->clear();
    ui->txtProblemCaseInput->setReadOnly(true);
    ui->txtProblemCaseExpected->clear();
    ui->txtProblemCaseExpected->setReadOnly(true);
    ui->txtProblemCaseOutput->clear();
}

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

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->tabInfos->setCurrentWidget(ui->tabProblemSet);
        ui->lstProblemSet->setCurrentIndex(mOJProblemSetModel.index(
                                               mOJProblemSetModel.count()-1
                                               ,0));
        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::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::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->lines()->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->tabInfos->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();
        openCloseLeftPanel(true);
        ui->tabProject->setVisible(true);
        ui->tabInfos->setCurrentWidget(ui->tabProject);
    } else {
        // Clear project browser
        mProjectProxyModel->setSourceModel(nullptr);
        ui->tabProject->setVisible(false);
    }
    updateProjectActions();
}

void MainWindow::onFileChanged(const QString &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 {
            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);
                e->updateCaption();
            }
            mFileSystemWatcher.removePath(e->filename());
        }
    }
}

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.setBottomPanelHeight(mBottomPanelHeight);
        settings.setBottomPanelIndex(ui->tabMessages->currentIndex());
        settings.setBottomPanelOpenned(mBottomPanelOpenned);
        settings.setLeftPanelWidth(mLeftPanelWidth);
        settings.setLeftPanelIndex(ui->tabInfos->currentIndex());
        settings.setLeftPanelOpenned(mLeftPanelOpenned);

        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.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.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();
    event->accept();
    return;
}

void MainWindow::showEvent(QShowEvent *)
{
    applySettings();
    const Settings::UI& settings = pSettings->ui();
    ui->tabMessages->setCurrentIndex(settings.bottomPanelIndex());
    if (settings.bottomPanelOpenned()) {
        mBottomPanelHeight = settings.bottomPanelHeight();
        openCloseBottomPanel(true);
    } else {
        openCloseBottomPanel(false);
        mBottomPanelHeight = settings.bottomPanelHeight();
    }
    ui->tabInfos->setCurrentIndex(settings.leftPanelIndex());
    if (settings.leftPanelOpenned()) {
        mLeftPanelWidth = settings.leftPanelWidth();
        openCloseLeftPanel(true);
    } else {
        openCloseLeftPanel(false);
        mLeftPanelWidth = settings.leftPanelWidth();
    }
}

void MainWindow::hideEvent(QHideEvent *)
{
    Settings::UI& settings = pSettings->ui();
    settings.setBottomPanelIndex(ui->tabMessages->currentIndex());
    settings.setBottomPanelOpenned(mBottomPanelOpenned);
    settings.setBottomPanelHeight(mBottomPanelHeight);
    settings.setLeftPanelIndex(ui->tabInfos->currentIndex());
    settings.setLeftPanelOpenned(mLeftPanelOpenned);
    settings.setLeftPanelWidth(mLeftPanelWidth);
}

//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::onCompileLog(const QString& msg)
{
    ui->txtCompilerOutput->appendPlainText(msg);
    ui->txtCompilerOutput->moveCursor(QTextCursor::End);
    ui->txtCompilerOutput->moveCursor(QTextCursor::StartOfLine);
    ui->txtCompilerOutput->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->lines()->count())
                return;
            int col = std::min(issue->column,e->lines()->getString(line-1).length()+1);
            if (col < 1)
                col = e->lines()->getString(line-1).length()+1;
            e->addSyntaxIssues(line,col,issue->endColumn,issue->type,issue->description);
        }
    }
}

void MainWindow::onCompileStarted()
{
    ui->txtCompilerOutput->clear();
}

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"));
            }
        }
    }

    // Close it if there's nothing to show
    if (isCheckSyntax) {
      // check syntax in back, don't change message panel
    } else if (
        (ui->tableIssues->count() == 0)
               ) {
        openCloseBottomPanel(false);
        // Or open it if there is anything to show
    } else {
        if (ui->tableIssues->count() > 0) {
            if (ui->tabMessages->currentIndex() != i) {
                ui->tabMessages->setCurrentIndex(i);
            }
            openCloseBottomPanel(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->filename);
                break;
            case MainWindow::CompileSuccessionTaskType::RunProblemCases:
                runExecutable(mCompileSuccessionTask->filename,QString(),RunType::ProblemCases);
                break;
            case MainWindow::CompileSuccessionTaskType::RunCurrentProblemCase:
                runExecutable(mCompileSuccessionTask->filename,QString(),RunType::CurrentProblemCase);
                break;
            case MainWindow::CompileSuccessionTaskType::Debug:
                debug();
                break;
            default:
                break;
            }
            mCompileSuccessionTask.reset();
            // Jump to problem location, sorted by significance
        } else if ((mCompilerManager->compileIssueCount() > 0) && (!mCheckSyntaxInBack)) {
            // 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) {
                    if (e && e->filename() != issue->filename)
                        continue;
                    ui->tableIssues->selectRow(i);
                    QModelIndex index =ui->tableIssues->model()->index(i,0);
                    emit ui->tableIssues->doubleClicked(index);
                    break;
                }
            }

            // 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) {
                    if (e && e->filename() != issue->filename)
                        continue;
                    ui->tableIssues->selectRow(i);
                    QModelIndex index =ui->tableIssues->model()->index(i,0);
                    emit ui->tableIssues->doubleClicked(index);
                }
            }
        }
    } 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);
        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);
        QModelIndex idx = ui->lstProblemCases->currentIndex();
        if (idx.isValid()) {
            if (row == idx.row()) {
                updateProblemCaseOutput(problemCase);
            }
        }
    }
    ui->pbProblemCases->setMaximum(total);
    ui->pbProblemCases->setValue(current);
    updateProblemTitle();
}

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

void 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->hasUrls()) {
        QStringList filesToOpen;
        foreach (const QUrl& url, data->urls()) {
            QString s = url.toLocalFile();
            if (!s.isEmpty()) {
                filesToOpen.append(s);
            }
        }
        if (!filesToOpen.isEmpty())
            openFiles(filesToOpen);
    } else {
        Editor * editor = mEditorList->getEditor();
        if (editor != NULL ) {
            editor->pasteFromClipboard();
            editor->activate();
        }
    }
}

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()) {
        openCloseBottomPanel(!mBottomPanelOpenned);
    }
}

void MainWindow::on_tabMessages_currentChanged(int)
{
    openCloseBottomPanel(true);
}

void MainWindow::on_tabMessages_tabBarDoubleClicked(int )
{

}

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()
{
    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);
}


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


void MainWindow::on_actionModify_Watch_triggered()
{

}


void MainWindow::on_actionReformat_Code_triggered()
{
    Editor* e = mEditorList->getEditor();
    if (e) {
        BufferCoord oldXY=e->caretXY();
        int topLine = e->topLine();
        int leftChar = e->leftChar();
        e->reformat();
        e->setTopLine(topLine);
        e->setLeftChar(leftChar);
        e->setCaretXY(oldXY);
        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_tabInfos_tabBarClicked(int index)
{
    if (index == ui->tabInfos->currentIndex()) {
        openCloseLeftPanel(!mLeftPanelOpenned);
    }
}


void MainWindow::on_splitterInfos_splitterMoved(int, int)
{
    QList<int> sizes = ui->splitterInfos->sizes();
    mLeftPanelWidth = sizes[0];
}


void MainWindow::on_splitterMessages_splitterMoved(int, int)
{
    QList<int> sizes = ui->splitterMessages->sizes();
    mBottomPanelHeight = sizes[1];
}


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();
    BufferCoord pos;
    if (editor && editor->pointToCharLine(mEditorContextMenuPos,pos)) {
        editor->gotoDeclaration(pos);
    }
}


void MainWindow::on_actionGoto_Definition_triggered()
{
    Editor * editor = mEditorList->getEditor();
    BufferCoord pos;
    if (editor && editor->pointToCharLine(mEditorContextMenuPos,pos)) {
        editor->gotoDefinition(pos);
    }
}


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");
#else
            openShell(info.path(),pSettings->environment().terminalPath());
#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;
    FolderNode * node = static_cast<FolderNode*>(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());
        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());
        FolderNode * node = nullptr;
        if (current.isValid()) {
            node = static_cast<FolderNode*>(current.internalPointer());
        }
        PFolderNode folderNode =  mProject->pointerToNode(node);
        foreach (const QString& filename, dialog.selectedFiles()) {
            mProject->addUnit(filename,folderNode,false);
            mProject->cppParser()->addFileToScan(filename);
        }
        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);
        FolderNode * node = static_cast<FolderNode*>(realIndex.internalPointer());
        PFolderNode 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");
#else
    openShell(mProject->directory(),pSettings->environment().terminalPath());
#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->tabInfos,widget);
    if (idx>=0) {
        if (!show) {
            ui->tabInfos->removeTab(idx);
        }
    } else {
        if (show && mTabInfosData.contains(widget)) {
            PTabWidgetInfo info = mTabInfosData[widget];
            int insert = -1;
            for (int i=0;i<ui->tabInfos->count();i++) {
                QWidget * w=ui->tabInfos->widget(i);
                PTabWidgetInfo infoW = mTabInfosData[w];
                if (infoW->order>info->order) {
                    insert = i;
                    break;
                }
            }
            if (insert>=0) {
                ui->tabInfos->insertTab(insert, widget, info->icon, info->text);
            } else {
                ui->tabInfos->addTab(widget, info->icon, info->text);
            }
        }
    }
}

void MainWindow::showHideMessagesTab(QWidget *widget, bool show)
{
    int idx = findTabIndex(ui->tabMessages,widget);
    if (idx>=0) {
        if (!show) {
            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->tabInfos->count();i++) {
        QWidget* widget = ui->tabInfos->widget(i);
        PTabWidgetInfo info = std::make_shared<TabWidgetInfo>();
        info->order =i;
        info->text = ui->tabInfos->tabText(i);
        info->icon = ui->tabInfos->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());
    FolderNode * node = nullptr;
    if (current.isValid()) {
        node = static_cast<FolderNode*>(current.internalPointer());
    }
    QString newFileName;
    do {
        newFileName = tr("untitled")+QString("%1").arg(getNewFileNumber());
        if (mProject->options().isCpp) {
            newFileName+=".cpp";
        } else {
            newFileName+=".c";
        }
    } while (fileExists(QDir(mProject->directory()).absoluteFilePath(newFileName)));

    newFileName = QInputDialog::getText(
                this,
                tr("New Project File Name"),
                tr("File Name:"),
                QLineEdit::Normal,
                newFileName);
    if (newFileName.isEmpty())
        return;
    if (fileExists(QDir(mProject->directory()).absoluteFilePath(newFileName))) {
        QMessageBox::critical(this,tr("File Already Exists!"),
                              tr("File '%1' already exists!").arg(newFileName));
        return;
    }
    PProjectUnit newUnit = mProject->newUnit(
                mProject->pointerToNode(node),newFileName);
    idx = mProject->units().count()-1;
    mProject->saveUnits();
    updateProjectView();
    Editor * editor = mProject->openUnit(idx);
    //editor->setUseCppSyntax(mProject->options().useGPP);
    //editor->setModified(true);
    editor->activate();
}

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();
//    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;
    }

    BufferCoord oldCaretXY = editor->caretXY();
    if (editor->inProject() && mProject) {
        mProject->cppParser()->parseFileList();
        QStringList expression = editor->getExpressionAtPosition(oldCaretXY);
        // 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;

    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;
    BufferCoord oldXY=editor->caretXY();
    int topLine = editor->topLine();
    int leftChar = editor->leftChar();
    refactor.renameSymbol(editor,oldCaretXY,word,newWord);
    editor->setTopLine(topLine);
    editor->setLeftChar(leftChar);
    editor->setCaretXY(oldXY);
    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)
{
    mFileSystemModel.setRootPath(path);
    ui->treeFiles->setRootIndex(mFileSystemModel.index(path));
    pSettings->environment().setCurrentFolder(path);
    ui->txtFilesPath->setText(path);
    ui->txtFilesPath->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)
{
    mCompileSuccessionTask = std::make_shared<CompileSuccessionTask>();
    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)
{
    ui->txtProblemCaseOutput->clear();
    ui->txtProblemCaseOutput->setPlainText(problemCase->output);
    if (problemCase->testState == ProblemCaseTestState::Failed) {
        QStringList output = textToLines(problemCase->output);
        QStringList expected = textToLines(problemCase->expected);
        for (int i=0;i<output.count();i++) {
            if (i>=expected.count() || output[i]!=expected[i]) {
                QTextBlock block = ui->txtProblemCaseOutput->document()->findBlockByLineNumber(i);
                QTextCursor cur(block);
                cur.select(QTextCursor::LineUnderCursor);
                QTextCharFormat format = cur.charFormat();
                format.setUnderlineColor(mErrorColor);
                format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
                cur.setCharFormat(format);
            }
        }
        if (output.count()<expected.count()) {
            QTextBlock block = ui->txtProblemCaseOutput->document()->findBlockByLineNumber(output.count()-1);
            QTextCursor cur(block);
            cur.select(QTextCursor::LineUnderCursor);
            QTextCharFormat format = cur.charFormat();
            format.setUnderlineColor(mErrorColor);
            format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
            cur.setCharFormat(format);
        }
    }
}

void MainWindow::applyCurrentProblemCaseChanges()
{
    QModelIndex idx = ui->lstProblemCases->currentIndex();
    if (idx.isValid()) {
        POJProblemCase problemCase = mOJProblemModel.getCase(idx.row());
        if (problemCase) {
            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];
            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;
        }
        editor->selectAll();
        editor->setSelText(contents.join(editor->lineBreak()));
    }
    showSearchReplacePanel(false);
    openCloseBottomPanel(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://zh.cppreference.com/w/cpp"));
        }
    } 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->lines()->count()<=0)
            return;
        QString desc = QInputDialog::getText(editor,tr("Bookmark Description"),
                                             tr("Description:"),QLineEdit::Normal,
                                             editor->lines()->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) {
        QString fileDir = extractFileDir(editor->filename());
        if (!fileDir.isEmpty()) {
            setFilesViewRoot(fileDir);
            ui->treeFiles->setCurrentIndex(mFileSystemModel.index(editor->filename()));
            ui->tabInfos->setCurrentWidget(ui->tabFiles);
            openCloseLeftPanel(true);
        }
    }
}


void MainWindow::on_treeFiles_doubleClicked(const QModelIndex &index)
{
    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("Open Folder"),
                                                       pSettings->environment().currentFolder());
    if (!folder.isEmpty()) {
        setFilesViewRoot(folder);
    }
}


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);
        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()
{
    QString fileName = QFileDialog::getSaveFileName(
                this,
                tr("Save Problem Set"),
                QDir().absolutePath(),
                tr("Problem Set Files (*.pbs)"));
    if (!fileName.isEmpty()) {
        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);
        if (!mOJProblemSetModel.problemNameUsed(name))
            break;
    }
    POJProblemCase problemCase = std::make_shared<OJProblemCase>();
    problemCase->name = name;
    problemCase->testState = ProblemCaseTestState::NotTested;
    mOJProblemModel.addCase(problemCase);
    ui->lstProblemCases->setCurrentIndex(mOJProblemModel.index(mOJProblemModel.count()-1));
}

void MainWindow::on_btnRunAllProblemCases_clicked()
{
    applyCurrentProblemCaseChanges();
    runExecutable(RunType::ProblemCases);
}


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


void MainWindow::on_btnRemoveProblemCase_clicked()
{
    QModelIndex idx = ui->lstProblemCases->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;
}

void MainWindow::on_actionTool_Window_Bars_triggered()
{
    bool state = ui->tabInfos->isVisible();
    state = !state;
    ui->tabInfos->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_actionCompile_Log_triggered()
{
    bool state = ui->actionCompile_Log->isChecked();
    ui->actionCompile_Log->setChecked(state);
    showHideMessagesTab(ui->tabCompilerOutput,state);
}


void MainWindow::on_actionDebug_Window_triggered()
{
    bool state = ui->actionCompile_Log->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());
}