- enhancement: Auto backup editing contents. (Save editing contents 3 seconds after input stopped. Auto delete when editor successfully closed)

- enhancement: Add "Auto backup editing contents" option in options/editor/auto save
2023-01-15 13:32:33 +08:00 · 2023-01-15 13:32:33 +08:00 · aa62f95cad
parent edeb47d2c2
commit aa62f95cad
13 changed files with 417 additions and 179 deletions
--- a/NEWS.md
+++ b/NEWS.md
@ -5,6 +5,8 @@ Red Panda C++ Version 2.9
  - fix: Save may crash app if the encoding codec is failed to load.
  - enhancement: support open and save utf-16/utf-32 BOM files. (but gcc can't compile)
  - enhancement: Create a temporary copy of the current file when saving files (it's removed after the saving sucessfully finished).
+  - enhancement: Auto backup editing contents. (Save editing contents 3 seconds after input stopped. Auto delete when editor successfully closed)
+  - enhancement: Add "Auto backup editing contents" option in options/editor/auto save

 Red Panda C++ Version 2.8

--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@ -29,6 +29,7 @@
 #include <QMessageBox>
 #include <QDebug>
 #include <QMimeData>
+#include <QTemporaryFile>
 #include "qsynedit/syntaxer/cpp.h"
 #include "syntaxermanager.h"
 #include "qsynedit/exporter/rtfexporter.h"
@ -83,6 +84,7 @@ Editor::Editor(QWidget *parent, const QString& filename,
  mSaving(false),
  mHoverModifiedLine(-1)
 {
+    mBackupFile=nullptr;
    mHighlightCharPos1 = QSynedit::BufferCoord{0,0};
    mHighlightCharPos2 = QSynedit::BufferCoord{0,0};
    mCurrentLineModified = false;
@ -93,7 +95,13 @@ Editor::Editor(QWidget *parent, const QString& filename,
    QFileInfo fileInfo(mFilename);
    QSynedit::PSyntaxer syntaxer;
    if (!isNew) {
-        loadFile();
+        try {
+            loadFile();
+        } catch (FileError& e) {
+            QMessageBox::critical(nullptr,
+                                  tr("Error Load File"),
+                                  e.reason());
+        }
        syntaxer = syntaxerManager.getSyntaxer(mFilename);
    } else {
        mFileEncoding = ENCODING_ASCII;
@ -176,9 +184,13 @@ Editor::Editor(QWidget *parent, const QString& filename,
        setExtraKeystrokes();
    }

-    if (mParentPageControl)
+    if (mParentPageControl) {
        connect(&mFunctionTipTimer, &QTimer::timeout,
            this, &Editor::onFunctionTipsTimer);
+        mAutoBackupTimer.setInterval(1);
+        connect(&mAutoBackupTimer, &QTimer::timeout,
+            this, &Editor::onAutoBackupTimer);
+    }

    connect(horizontalScrollBar(), &QScrollBar::valueChanged,
            this, &Editor::onScrollBarValueChanged);
@ -188,15 +200,33 @@ Editor::Editor(QWidget *parent, const QString& filename,

 Editor::~Editor() {
    //qDebug()<<"editor "<<mFilename<<" deleted";
+    cleanAutoBackup();
 }

 void Editor::loadFile(QString filename) {
    if (filename.isEmpty()) {
-        this->document()->loadFromFile(mFilename,mEncodingOption,mFileEncoding);
+        filename=mFilename;
+        for (int i=0;i<100;i++) {
+            QString backfilename = filename+".savebak";
+            if (i>0)
+                backfilename += QString("%1").arg(i);
+            if (fileExists(backfilename)) {
+                if (QMessageBox::question(this,tr("Restore backup"),
+                                          tr("Backup file '%1' detected.").arg(backfilename)
+                                          +"<br />"
+                                          +tr("Error occurred at last save.")
+                                          +"<br />"
+                                          +tr("Do you want to load the backup file?"),
+                                          QMessageBox::Yes | QMessageBox::No)==QMessageBox::Yes)
+                    filename = backfilename;
+                break;
+            }
+        }
    } else {
        filename = QFileInfo(filename).absoluteFilePath();
-        this->document()->loadFromFile(filename,mEncodingOption,mFileEncoding);
    }
+
+    this->document()->loadFromFile(filename,mEncodingOption,mFileEncoding);
    //this->setModified(false);
    updateCaption();
    if (mParentPageControl)
@ -219,6 +249,7 @@ void Editor::loadFile(QString filename) {
        reparseTodo();
    }
    mLastIdCharPressed = 0;
+    saveAutoBackup();
 }

 void Editor::saveFile(QString filename) {
@ -450,6 +481,8 @@ bool Editor::saveAs(const QString &name, bool fromProject){
    updateCaption();

    emit renamed(oldName, newName , firstSave);
+
+    initAutoBackup();
    return true;
 }

@ -467,9 +500,15 @@ void Editor::setEncodingOption(const QByteArray& encoding) noexcept{
    if (mEncodingOption == encoding)
        return;
    mEncodingOption = encoding;
-    if (!isNew())
-        loadFile();
-    else if (mParentPageControl)
+    if (!isNew()) {
+        try {
+            loadFile();
+        } catch (FileError& e) {
+            QMessageBox::critical(nullptr,
+                                  tr("Error Load File"),
+                                  e.reason());
+        }
+    } else if (mParentPageControl)
        pMainWindow->updateForEncodingInfo(this);
    if (mProject) {
        PProjectUnit unit = mProject->findUnit(this);
@ -1800,8 +1839,6 @@ void Editor::onStatusChanged(QSynedit::StatusChanges changes)
        }
    }

-
-
    if (changes.testFlag(QSynedit::scInsertMode) | changes.testFlag(QSynedit::scReadOnly))
        pMainWindow->updateForStatusbarModeInfo();

@ -1866,6 +1903,16 @@ void Editor::onFunctionTipsTimer()
    updateFunctionTip(true);
 }

+void Editor::onAutoBackupTimer()
+{
+    if (mBackupTime>lastModifyTime())
+        return;
+    QDateTime current=QDateTime::currentDateTime();
+    if (current.toSecsSinceEpoch()-lastModifyTime().toSecsSinceEpoch()<3)
+        return;
+    saveAutoBackup();
+}
+
 bool Editor::isBraceChar(QChar ch)
 {
    switch( ch.unicode()) {
@ -3268,6 +3315,61 @@ void Editor::showHeaderCompletion(bool autoComplete, bool forceShow)
        headerCompletionInsert(); // if only have one suggestion, just use it
 }

+void Editor::initAutoBackup()
+{
+    if (!mParentPageControl)
+        return;
+    cleanAutoBackup();
+    if (!pSettings->editor().enableEditTempBackup())
+        return;
+    QFileInfo fileInfo(mFilename);
+    if (fileInfo.isAbsolute()) {
+        mBackupFile=new QFile(extractFileDir(mFilename)
+                              +QDir::separator()
+                              +extractFileName(mFilename)+QString(".%1.editbackup").arg(QDateTime::currentSecsSinceEpoch()));
+        if (mBackupFile->open(QFile::Truncate|QFile::WriteOnly)) {
+            saveAutoBackup();
+        } else {
+            cleanAutoBackup();
+        }
+    } else {
+        mBackupFile=new QFile(
+                    includeTrailingPathDelimiter(QDir::currentPath())
+                    +mFilename
+                    +QString(".%1.editbackup").arg(QDateTime::currentSecsSinceEpoch()));
+        if (!mBackupFile->open(QFile::Truncate|QFile::WriteOnly)) {
+            mBackupFile->setParent(nullptr);
+            delete mBackupFile;
+            mBackupFile=nullptr;
+        }
+    }
+    if (mBackupFile) {
+        mAutoBackupTimer.start();
+    }
+}
+
+void Editor::saveAutoBackup()
+{
+    if (mBackupFile) {
+        mBackupFile->reset();
+        mBackupTime=QDateTime::currentDateTime();
+        mBackupFile->write(text().toUtf8());
+        mBackupFile->flush();
+        qDebug()<<mBackupTime<<mBackupFile->size()<<mBackupFile->fileName();
+    }
+}
+
+void Editor::cleanAutoBackup()
+{
+    mAutoBackupTimer.stop();
+    if (mBackupFile) {
+        mBackupFile->close();
+        mBackupFile->remove();
+        delete mBackupFile;
+        mBackupFile=nullptr;
+    }
+}
+
 bool Editor::testInFunc(int x, int y)
 {
    bool result = false;
@ -4841,6 +4943,8 @@ void Editor::applySettings()
    this->setUndoLimit(pSettings->editor().undoLimit());
    this->setUndoMemoryUsage(pSettings->editor().undoMemoryUsage());

+    initAutoBackup();
+
    setMouseWheelScrollSpeed(pSettings->editor().mouseWheelScrollSpeed());
    setMouseSelectionScrollSpeed(pSettings->editor().mouseSelectionScrollSpeed());
    invalidate();
--- a/RedPandaIDE/editor.h
+++ b/RedPandaIDE/editor.h
@ -39,6 +39,8 @@ struct TabStop {
    int y;
 };

+class QTemporaryFile;
+
 using PTabStop = std::shared_ptr<TabStop>;

 class Editor : public QSynedit::QSynEdit
@ -228,6 +230,7 @@ private slots:
    void onLinesDeleted(int first,int count);
    void onLinesInserted(int first,int count);
    void onFunctionTipsTimer();
+    void onAutoBackupTimer();

 private:
    bool isBraceChar(QChar ch);
@ -254,6 +257,10 @@ private:
    void showCompletion(const QString& preWord, bool autoComplete, CodeCompletionType type);
    void showHeaderCompletion(bool autoComplete, bool forceShow=false);

+    void initAutoBackup();
+    void saveAutoBackup();
+    void cleanAutoBackup();
+
    bool testInFunc(int x,int y);

    void completionInsert(bool appendFunc=false);
@ -281,6 +288,8 @@ private:
    void onScrollBarValueChanged();
    static PCppParser sharedParser(ParserLanguage language);
 private:
+    QDateTime mBackupTime;
+    QFile* mBackupFile;
    QByteArray mEncodingOption; // the encoding type set by the user
    QByteArray mFileEncoding; // the real encoding of the file (auto detected)
    QString mFilename;
@ -328,6 +337,7 @@ private:
    QSynedit::BufferCoord mHighlightCharPos2;
    std::shared_ptr<QHash<StatementKind, std::shared_ptr<ColorSchemeItem> > > mStatementColors;
    QTimer mFunctionTipTimer;
+    QTimer mAutoBackupTimer;
    int mHoverModifiedLine;

    static QHash<ParserLanguage,std::weak_ptr<CppParser>> mSharedParsers;
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@ -760,6 +760,16 @@ void Settings::Editor::setShowLeadingSpaces(bool newShowStartSpaces)
    mShowLeadingSpaces = newShowStartSpaces;
 }

+bool Settings::Editor::enableEditTempBackup() const
+{
+    return mEnableEditTempBackup;
+}
+
+void Settings::Editor::setEnableEditTempBackup(bool newEnableEditTempBackup)
+{
+    mEnableEditTempBackup = newEnableEditTempBackup;
+}
+
 bool Settings::Editor::showTrailingSpaces() const
 {
    return mShowTrailingSpaces;
@ -1360,6 +1370,7 @@ void Settings::Editor::doSave()
    saveValue("check_syntax_when_line_changed",mSyntaxCheckWhenLineChanged);

    //auto save
+    saveValue("enable_edit_temp_backup",mEnableEditTempBackup);
    saveValue("enable_auto_save",mEnableAutoSave);
    saveValue("auto_save_interal",mAutoSaveInterval);
    saveValue("auto_save_target",mAutoSaveTarget);
@ -1508,6 +1519,7 @@ void Settings::Editor::doLoad()
    mSyntaxCheckWhenLineChanged = boolValue("check_syntax_when_line_changed",true);

    //auto save
+    mEnableEditTempBackup = boolValue("enable_edit_temp_backup",true);
    mEnableAutoSave = boolValue("enable_auto_save",false);
    mAutoSaveInterval = intValue("auto_save_interal",10);
    mAutoSaveTarget = static_cast<enum AutoSaveTarget>(
--- a/RedPandaIDE/settings.h
+++ b/RedPandaIDE/settings.h
@ -398,6 +398,9 @@ public:
        bool showLeadingSpaces() const;
        void setShowLeadingSpaces(bool newShowStartSpaces);

+        bool enableEditTempBackup() const;
+        void setEnableEditTempBackup(bool newEnableEditTempBackup);
+
    private:
        //General
        // indents
@ -497,6 +500,7 @@ public:
        bool mSyntaxCheckWhenLineChanged;

        //auto save
+        bool mEnableEditTempBackup;
        bool mEnableAutoSave;
        int mAutoSaveInterval;
        enum AutoSaveTarget mAutoSaveTarget;
--- a/RedPandaIDE/settingsdialog/editorautosavewidget.cpp
+++ b/RedPandaIDE/settingsdialog/editorautosavewidget.cpp
@ -48,8 +48,7 @@ void EditorAutoSaveWidget::onAutoSaveStrategyChanged()

 void EditorAutoSaveWidget::doLoad()
 {
-    //pSettings->editor().load();
-    //font
+    ui->chkAutoBackupEditContents->setChecked(pSettings->editor().enableEditTempBackup());
    ui->grpEnableAutoSave->setChecked(pSettings->editor().enableAutoSave());
    ui->spinInterval->setValue(pSettings->editor().autoSaveInterval());
    switch(pSettings->editor().autoSaveTarget()) {
@ -76,6 +75,7 @@ void EditorAutoSaveWidget::doLoad()

 void EditorAutoSaveWidget::doSave()
 {
+    pSettings->editor().setEnableEditTempBackup(ui->chkAutoBackupEditContents->isChecked());
    pSettings->editor().setEnableAutoSave(ui->grpEnableAutoSave->isChecked());
    pSettings->editor().setAutoSaveInterval(ui->spinInterval->value());
    if (ui->rbCurrentFile->isChecked())
--- a/RedPandaIDE/settingsdialog/editorautosavewidget.ui
+++ b/RedPandaIDE/settingsdialog/editorautosavewidget.ui
@ -14,6 +14,13 @@
   <string>Form</string>
  </property>
  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QCheckBox" name="chkAutoBackupEditContents">
+     <property name="text">
+      <string>Auto backup editing contents</string>
+     </property>
+    </widget>
+   </item>
   <item>
    <widget class="QGroupBox" name="grpEnableAutoSave">
     <property name="title">
--- a/RedPandaIDE/translations/RedPandaIDE_pt_BR.ts
+++ b/RedPandaIDE/translations/RedPandaIDE_pt_BR.ts
@ -1038,6 +1038,30 @@
        <source>Can&apos;t generate temporary backup file &apos;%1&apos;.</source>
        <translation type="unfinished"></translation>
    </message>
+    <message>
+        <source>Restore backup</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Backup file &apos;%1&apos; detected.</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Continue to save?</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Error occurred at last save.</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Do you want to load the backup file?</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Error Load File</source>
+        <translation type="unfinished">Erro ao carregar arquivo</translation>
+    </message>
 </context>
 <context>
    <name>EditorAutoSaveWidget</name>
@ -1097,6 +1121,10 @@
        <source>Demo file name: </source>
        <translation>Nome do arquivo de demonstração:</translation>
    </message>
+    <message>
+        <source>Auto backup editing contents</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
    <name>EditorClipboardWidget</name>
--- a/RedPandaIDE/translations/RedPandaIDE_zh_CN.ts
+++ b/RedPandaIDE/translations/RedPandaIDE_zh_CN.ts
@ -1379,14 +1379,15 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">失败</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="254"/>
-        <location filename="../editor.cpp" line="297"/>
-        <location filename="../editor.cpp" line="383"/>
-        <location filename="../editor.cpp" line="412"/>
-        <location filename="../editor.cpp" line="1482"/>
-        <location filename="../editor.cpp" line="1487"/>
-        <location filename="../editor.cpp" line="1507"/>
-        <location filename="../editor.cpp" line="1512"/>
+        <location filename="../editor.cpp" line="268"/>
+        <location filename="../editor.cpp" line="276"/>
+        <location filename="../editor.cpp" line="322"/>
+        <location filename="../editor.cpp" line="408"/>
+        <location filename="../editor.cpp" line="437"/>
+        <location filename="../editor.cpp" line="1515"/>
+        <location filename="../editor.cpp" line="1520"/>
+        <location filename="../editor.cpp" line="1540"/>
+        <location filename="../editor.cpp" line="1545"/>
        <source>Error</source>
        <translation>错误</translation>
    </message>
@ -1395,49 +1396,82 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">无法写入文件&quot;%1&quot;</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="255"/>
-        <source>Can&apos;t generate temporary backup file &apos;%1&apos;.</source>
-        <translation type="unfinished">无法生成临时备份文件&quot;%1&quot;。</translation>
+        <location filename="../editor.cpp" line="102"/>
+        <location filename="../editor.cpp" line="508"/>
+        <source>Error Load File</source>
+        <translation>载入文件错误</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="327"/>
+        <location filename="../editor.cpp" line="214"/>
+        <source>Restore backup</source>
+        <translation>恢复备份文件</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="215"/>
+        <source>Backup file &apos;%1&apos; detected.</source>
+        <translation>检测到临时备份文件&apos;%1&apos;。</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="217"/>
+        <source>Error occurred at last save.</source>
+        <translation>上次保存时出错。</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="219"/>
+        <source>Do you want to load the backup file?</source>
+        <translation>是否载入备份文件？</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="269"/>
+        <location filename="../editor.cpp" line="277"/>
+        <source>Can&apos;t generate temporary backup file &apos;%1&apos;.</source>
+        <translation>无法生成临时备份文件&quot;%1&quot;。</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="271"/>
+        <location filename="../editor.cpp" line="279"/>
+        <source>Continue to save?</source>
+        <translation>继续保存？</translation>
+    </message>
+    <message>
+        <location filename="../editor.cpp" line="352"/>
        <source>Save As</source>
        <translation>另存为</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="384"/>
+        <location filename="../editor.cpp" line="409"/>
        <source>File %1 already openned!</source>
        <translation>文件%1已经被打开！</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="1483"/>
+        <location filename="../editor.cpp" line="1516"/>
        <source>The text to be copied exceeds count limit!</source>
        <translation>要复制的内容超过了行数限制！</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="1488"/>
+        <location filename="../editor.cpp" line="1521"/>
        <source>The text to be copied exceeds character limit!</source>
        <translation>要复制的内容超过了字符数限制！</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="1508"/>
+        <location filename="../editor.cpp" line="1541"/>
        <source>The text to be cut exceeds count limit!</source>
        <translation>要剪切的内容超过了行数限制！</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="1513"/>
+        <location filename="../editor.cpp" line="1546"/>
        <source>The text to be cut exceeds character limit!</source>
        <translation>要剪切的内容超过了字符数限制！</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="2995"/>
+        <location filename="../editor.cpp" line="3036"/>
        <source>Print Document</source>
        <translation>打印文档</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="3630"/>
-        <location filename="../editor.cpp" line="3677"/>
-        <location filename="../editor.cpp" line="3722"/>
+        <location filename="../editor.cpp" line="3725"/>
+        <location filename="../editor.cpp" line="3772"/>
+        <location filename="../editor.cpp" line="3817"/>
        <source>Ctrl+click for more info</source>
        <translation>Ctrl+单击以获取更多信息</translation>
    </message>
@ -1446,27 +1480,27 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">未找到符号&apos;%1&apos;!</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="4561"/>
+        <location filename="../editor.cpp" line="4656"/>
        <source>astyle not found</source>
        <translation>找不到astyle程序</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="4562"/>
+        <location filename="../editor.cpp" line="4657"/>
        <source>Can&apos;t find astyle in &quot;%1&quot;.</source>
        <translation>找不到astyle程序&quot;%1&quot;.</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="4721"/>
+        <location filename="../editor.cpp" line="4816"/>
        <source>Break point condition</source>
        <translation>断点条件</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="4722"/>
+        <location filename="../editor.cpp" line="4817"/>
        <source>Enter the condition of the breakpoint:</source>
        <translation>输入当前断点的生效条件:</translation>
    </message>
    <message>
-        <location filename="../editor.cpp" line="4965"/>
+        <location filename="../editor.cpp" line="5062"/>
        <source>Readonly</source>
        <translation>只读</translation>
    </message>
@ -1480,61 +1514,66 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../settingsdialog/editorautosavewidget.ui" line="20"/>
+        <source>Auto backup editing contents</source>
+        <translation>自动备份编辑内容</translation>
+    </message>
+    <message>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="27"/>
        <source>Enable auto save</source>
        <translation>启用自动保存</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="44"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="51"/>
        <source>Time interval:</source>
        <translation>时间间隔</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="51"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="58"/>
        <source>minutes</source>
        <translation>分钟</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="80"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="87"/>
        <source>Objects to save</source>
        <translation>保存对象</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="86"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="93"/>
        <source>Current File</source>
        <translation>当前文件</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="93"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="100"/>
        <source>All files openned</source>
        <translation>所有打开的文件</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="100"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="107"/>
        <source>Project files</source>
        <translation>项目文件</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="110"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="117"/>
        <source>Save strategy</source>
        <translation>保存策略</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="116"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="123"/>
        <source>Overwrite</source>
        <translation>自动覆盖</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="123"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="130"/>
        <source>Append UNIX timestamp</source>
        <translation>添加Unix时间戳</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="130"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="137"/>
        <source>Append formatted timestamp</source>
        <translation>添加格式化时间戳</translation>
    </message>
    <message>
-        <location filename="../settingsdialog/editorautosavewidget.ui" line="140"/>
+        <location filename="../settingsdialog/editorautosavewidget.ui" line="147"/>
        <source>Demo file name:</source>
        <translation>示例文件名</translation>
    </message>
@ -4125,11 +4164,11 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.ui" line="947"/>
        <location filename="../mainwindow.ui" line="2968"/>
-        <location filename="../mainwindow.cpp" line="5496"/>
-        <location filename="../mainwindow.cpp" line="5499"/>
-        <location filename="../mainwindow.cpp" line="5503"/>
-        <location filename="../mainwindow.cpp" line="5506"/>
-        <location filename="../mainwindow.cpp" line="7644"/>
+        <location filename="../mainwindow.cpp" line="5488"/>
+        <location filename="../mainwindow.cpp" line="5491"/>
+        <location filename="../mainwindow.cpp" line="5495"/>
+        <location filename="../mainwindow.cpp" line="5498"/>
+        <location filename="../mainwindow.cpp" line="7636"/>
        <source>Issues</source>
        <translation>编译器</translation>
    </message>
@ -4567,7 +4606,7 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.ui" line="777"/>
        <location filename="../mainwindow.ui" line="780"/>
        <location filename="../mainwindow.cpp" line="2463"/>
-        <location filename="../mainwindow.cpp" line="8081"/>
+        <location filename="../mainwindow.cpp" line="8073"/>
        <source>New Problem Set</source>
        <translation>新建试题集</translation>
    </message>
@ -4589,7 +4628,7 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.ui" line="819"/>
        <location filename="../mainwindow.ui" line="822"/>
        <location filename="../mainwindow.cpp" line="2477"/>
-        <location filename="../mainwindow.cpp" line="8142"/>
+        <location filename="../mainwindow.cpp" line="8134"/>
        <source>Save Problem Set</source>
        <translation>保存试题集</translation>
    </message>
@ -4597,7 +4636,7 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.ui" line="833"/>
        <location filename="../mainwindow.ui" line="836"/>
        <location filename="../mainwindow.cpp" line="2484"/>
-        <location filename="../mainwindow.cpp" line="8178"/>
+        <location filename="../mainwindow.cpp" line="8170"/>
        <source>Load Problem Set</source>
        <translation>载入试题集</translation>
    </message>
@ -4728,14 +4767,14 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.ui" line="847"/>
        <location filename="../mainwindow.cpp" line="2490"/>
-        <location filename="../mainwindow.cpp" line="9294"/>
+        <location filename="../mainwindow.cpp" line="9286"/>
        <source>Import FPS Problem Set</source>
        <translation>导入FPS试题集</translation>
    </message>
    <message>
        <location filename="../mainwindow.ui" line="858"/>
        <location filename="../mainwindow.cpp" line="2496"/>
-        <location filename="../mainwindow.cpp" line="9325"/>
+        <location filename="../mainwindow.cpp" line="9317"/>
        <source>Export FPS Problem Set</source>
        <translation>导出FPS试题集</translation>
    </message>
@ -4977,7 +5016,7 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.ui" line="2634"/>
-        <location filename="../mainwindow.cpp" line="6445"/>
+        <location filename="../mainwindow.cpp" line="6437"/>
        <source>Clear all breakpoints</source>
        <translation>删除所有断点</translation>
    </message>
@ -5229,7 +5268,7 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.ui" line="2797"/>
-        <location filename="../mainwindow.cpp" line="7587"/>
+        <location filename="../mainwindow.cpp" line="7579"/>
        <source>Rename Symbol</source>
        <translation>重命名符号</translation>
    </message>
@ -5250,13 +5289,13 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.ui" line="2817"/>
-        <location filename="../mainwindow.cpp" line="7853"/>
+        <location filename="../mainwindow.cpp" line="7845"/>
        <source>Export As RTF</source>
        <translation>导出为RTF</translation>
    </message>
    <message>
        <location filename="../mainwindow.ui" line="2822"/>
-        <location filename="../mainwindow.cpp" line="7875"/>
+        <location filename="../mainwindow.cpp" line="7867"/>
        <source>Export As HTML</source>
        <translation>导出为HTML</translation>
    </message>
@ -5629,22 +5668,22 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.cpp" line="2075"/>
        <location filename="../mainwindow.cpp" line="2241"/>
-        <location filename="../mainwindow.cpp" line="5574"/>
-        <location filename="../mainwindow.cpp" line="5581"/>
+        <location filename="../mainwindow.cpp" line="5566"/>
+        <location filename="../mainwindow.cpp" line="5573"/>
        <source>Wrong Compiler Settings</source>
        <translation>错误的编译器设置</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="2076"/>
        <location filename="../mainwindow.cpp" line="2242"/>
-        <location filename="../mainwindow.cpp" line="5575"/>
-        <location filename="../mainwindow.cpp" line="5582"/>
+        <location filename="../mainwindow.cpp" line="5567"/>
+        <location filename="../mainwindow.cpp" line="5574"/>
        <source>Compiler is set not to generate executable.</source>
        <translation>编译器被设置为不生成可执行文件。</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="2077"/>
-        <location filename="../mainwindow.cpp" line="5576"/>
+        <location filename="../mainwindow.cpp" line="5568"/>
        <source>We need the executabe to run problem case.</source>
        <translation>我们需要可执行文件来运行试题案例。</translation>
    </message>
@ -5710,7 +5749,7 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="2243"/>
-        <location filename="../mainwindow.cpp" line="5583"/>
+        <location filename="../mainwindow.cpp" line="5575"/>
        <source>Please correct this before start debugging</source>
        <translation>请在调试前改正设置。</translation>
    </message>
@ -5768,22 +5807,22 @@ Are you really want to continue?</oldsource>
        <translation>全部复制</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9193"/>
+        <location filename="../mainwindow.cpp" line="9185"/>
        <source>Go to Line</source>
        <translation>跳转到行</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9193"/>
+        <location filename="../mainwindow.cpp" line="9185"/>
        <source>Line</source>
        <translation>行</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9215"/>
+        <location filename="../mainwindow.cpp" line="9207"/>
        <source>Template Exists</source>
        <translation>模板已存在</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9216"/>
+        <location filename="../mainwindow.cpp" line="9208"/>
        <source>Template %1 already exists. Do you want to overwrite?</source>
        <translation>模板%1已存在。是否覆盖？</translation>
    </message>
@ -5809,7 +5848,7 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="327"/>
-        <location filename="../mainwindow.cpp" line="8090"/>
+        <location filename="../mainwindow.cpp" line="8082"/>
        <source>Problem Set %1</source>
        <translation>试题集%1</translation>
    </message>
@ -5883,15 +5922,15 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="4386"/>
-        <location filename="../mainwindow.cpp" line="7939"/>
-        <location filename="../mainwindow.cpp" line="7981"/>
+        <location filename="../mainwindow.cpp" line="7931"/>
+        <location filename="../mainwindow.cpp" line="7973"/>
        <source>Bookmark Description</source>
        <translation>书签描述</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="4387"/>
-        <location filename="../mainwindow.cpp" line="7940"/>
-        <location filename="../mainwindow.cpp" line="7982"/>
+        <location filename="../mainwindow.cpp" line="7932"/>
+        <location filename="../mainwindow.cpp" line="7974"/>
        <source>Description:</source>
        <translation>描述：</translation>
    </message>
@ -6072,7 +6111,7 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.cpp" line="2801"/>
        <location filename="../mainwindow.cpp" line="4267"/>
        <location filename="../mainwindow.cpp" line="4273"/>
-        <location filename="../mainwindow.cpp" line="7179"/>
+        <location filename="../mainwindow.cpp" line="7171"/>
        <source>Delete</source>
        <translation>删除</translation>
    </message>
@ -6136,17 +6175,17 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">中止</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9296"/>
+        <location filename="../mainwindow.cpp" line="9288"/>
        <source>FPS Problem Set Files (*.fps;*.xml)</source>
        <translation>FPS试题集文件(*.fps;*.xml)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9327"/>
+        <location filename="../mainwindow.cpp" line="9319"/>
        <source>FPS Problem Set Files (*.fps)</source>
        <translation>FPS试题集文件(*.fps)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9332"/>
+        <location filename="../mainwindow.cpp" line="9324"/>
        <source>Export Error</source>
        <translation>导出时出错</translation>
    </message>
@ -6190,7 +6229,7 @@ Are you really want to continue?</oldsource>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="4972"/>
-        <location filename="../mainwindow.cpp" line="8084"/>
+        <location filename="../mainwindow.cpp" line="8076"/>
        <source>Do you want to save it?</source>
        <translation>需要保存吗？</translation>
    </message>
@ -6214,23 +6253,23 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.cpp" line="5247"/>
        <location filename="../mainwindow.cpp" line="5258"/>
        <location filename="../mainwindow.cpp" line="5268"/>
-        <location filename="../mainwindow.cpp" line="8167"/>
+        <location filename="../mainwindow.cpp" line="8159"/>
        <source>Save Error</source>
        <translation>保存失败</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="5414"/>
+        <location filename="../mainwindow.cpp" line="5406"/>
        <source>Change Project Compiler Set</source>
        <translation>改变项目编译器配置集</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="5415"/>
+        <location filename="../mainwindow.cpp" line="5407"/>
        <source>Change the project&apos;s compiler set will lose all custom compiler set options.</source>
        <translation>改变项目的编译器配置集会导致所有的自定义编译器选项被重置。</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="3993"/>
-        <location filename="../mainwindow.cpp" line="5417"/>
+        <location filename="../mainwindow.cpp" line="5409"/>
        <source>Do you really want to do that?</source>
        <translation>你真的想要那么做吗？</translation>
    </message>
@ -6253,78 +6292,78 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">无标题%1</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6313"/>
+        <location filename="../mainwindow.cpp" line="6305"/>
        <source>Modify Watch</source>
        <translation>修改监视表达式</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6314"/>
+        <location filename="../mainwindow.cpp" line="6306"/>
        <source>Watch Expression</source>
        <translation>监视表达式</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6446"/>
+        <location filename="../mainwindow.cpp" line="6438"/>
        <source>Do you really want to clear all breakpoints in this file?</source>
        <translation>您真的要清除该文件的所有断点吗？</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6647"/>
+        <location filename="../mainwindow.cpp" line="6639"/>
        <source>New project</source>
        <translation>新建项目</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6648"/>
+        <location filename="../mainwindow.cpp" line="6640"/>
        <source>Close %1 and start new project?</source>
        <translation>关闭&apos;%1&apos;以打开新项目?</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6661"/>
+        <location filename="../mainwindow.cpp" line="6653"/>
        <source>Folder not exist</source>
        <translation>文件夹不存在</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6662"/>
+        <location filename="../mainwindow.cpp" line="6654"/>
        <source>Folder &apos;%1&apos; doesn&apos;t exist. Create it now?</source>
        <translation>文件夹&apos;%1&apos;不存在。是否创建？</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6669"/>
+        <location filename="../mainwindow.cpp" line="6661"/>
        <source>Can&apos;t create folder</source>
        <translation>无法创建文件夹</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6670"/>
+        <location filename="../mainwindow.cpp" line="6662"/>
        <source>Failed to create folder &apos;%1&apos;.</source>
        <translation>创建文件夹&apos;%1&apos;失败。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6685"/>
+        <location filename="../mainwindow.cpp" line="6677"/>
        <source>Save new project as</source>
        <translation></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7180"/>
+        <location filename="../mainwindow.cpp" line="7172"/>
        <source>Folder %1 is not empty.</source>
        <translation>文件夹%1不是空的。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7181"/>
+        <location filename="../mainwindow.cpp" line="7173"/>
        <source>Do you really want to delete it?</source>
        <translation>你真的要删除它吗？</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8004"/>
+        <location filename="../mainwindow.cpp" line="7996"/>
        <source>Change working folder</source>
        <translation>改变工作文件夹</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8005"/>
+        <location filename="../mainwindow.cpp" line="7997"/>
        <source>File &apos;%1&apos; is not in the current working folder.</source>
        <oldsource>File &apos;%1&apos; is not in the current working folder</oldsource>
        <translation>文件&apos;%1&apos;不在当前工作文件夹中。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8008"/>
+        <location filename="../mainwindow.cpp" line="8000"/>
        <source>Do you want to change working folder to &apos;%1&apos;?</source>
        <translation>是否将工作文件夹改设为&apos;%1&apos;?</translation>
    </message>
@ -6333,28 +6372,28 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">正在删除试题...</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8715"/>
+        <location filename="../mainwindow.cpp" line="8707"/>
        <source>Can&apos;t Commit</source>
        <translation>无法提交</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8716"/>
+        <location filename="../mainwindow.cpp" line="8708"/>
        <source>Git needs user info to commit.</source>
        <translation>Git需要用信息进行提交。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8984"/>
+        <location filename="../mainwindow.cpp" line="8976"/>
        <source>Choose Input Data File</source>
        <translation>选择输入数据文件</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8986"/>
-        <location filename="../mainwindow.cpp" line="9041"/>
+        <location filename="../mainwindow.cpp" line="8978"/>
+        <location filename="../mainwindow.cpp" line="9033"/>
        <source>All files (*.*)</source>
        <translation>所有文件 (*.*)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="9039"/>
+        <location filename="../mainwindow.cpp" line="9031"/>
        <source>Choose Expected Output Data File</source>
        <oldsource>Choose Expected Input Data File</oldsource>
        <translation>选择期望输出文件</translation>
@ -6366,59 +6405,59 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.ui" line="2887"/>
        <location filename="../mainwindow.ui" line="2890"/>
-        <location filename="../mainwindow.cpp" line="8060"/>
+        <location filename="../mainwindow.cpp" line="8052"/>
        <source>Choose Working Folder</source>
        <translation>选择工作文件夹</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8484"/>
-        <location filename="../mainwindow.cpp" line="8533"/>
+        <location filename="../mainwindow.cpp" line="8476"/>
+        <location filename="../mainwindow.cpp" line="8525"/>
        <source>Header Exists</source>
        <translation>头文件已存在</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8485"/>
-        <location filename="../mainwindow.cpp" line="8534"/>
+        <location filename="../mainwindow.cpp" line="8477"/>
+        <location filename="../mainwindow.cpp" line="8526"/>
        <source>Header file &quot;%1&quot; already exists!</source>
        <translation>头文件&quot;%1&quot;已存在！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8539"/>
+        <location filename="../mainwindow.cpp" line="8531"/>
        <source>Source Exists</source>
        <translation>源文件已存在！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8540"/>
+        <location filename="../mainwindow.cpp" line="8532"/>
        <source>Source file &quot;%1&quot; already exists!</source>
        <translation>源文件&quot;%1&quot;已存在！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8694"/>
+        <location filename="../mainwindow.cpp" line="8686"/>
        <source>Can&apos;t commit!</source>
        <translation>无法提交！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8695"/>
+        <location filename="../mainwindow.cpp" line="8687"/>
        <source>The following files are in conflicting:</source>
        <translation>下列文件处于冲突状态，请解决后重新添加和提交：</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8700"/>
+        <location filename="../mainwindow.cpp" line="8692"/>
        <source>Commit Message</source>
        <translation>提交信息</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8700"/>
+        <location filename="../mainwindow.cpp" line="8692"/>
        <source>Commit Message:</source>
        <translation>提交信息：</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8703"/>
+        <location filename="../mainwindow.cpp" line="8695"/>
        <source>Commit Failed</source>
        <translation>提交失败</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8704"/>
+        <location filename="../mainwindow.cpp" line="8696"/>
        <source>Commit message shouldn&apos;t be empty!</source>
        <translation>提交信息不能为空！</translation>
    </message>
@ -6427,22 +6466,22 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">小熊猫Dev-C++项目文件 (*.dev)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6699"/>
+        <location filename="../mainwindow.cpp" line="6691"/>
        <source>New project fail</source>
        <translation>新建项目失败</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6700"/>
+        <location filename="../mainwindow.cpp" line="6692"/>
        <source>Can&apos;t assign project template</source>
        <translation>无法使用模板创建项目</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6801"/>
+        <location filename="../mainwindow.cpp" line="6793"/>
        <source>Remove file</source>
        <translation>删除文件</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6802"/>
+        <location filename="../mainwindow.cpp" line="6794"/>
        <source>Remove the file from disk?</source>
        <translation>同时从硬盘上删除文件？</translation>
    </message>
@ -6451,27 +6490,27 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">无标题</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7103"/>
+        <location filename="../mainwindow.cpp" line="7095"/>
        <source>New Project File Name</source>
        <translation>新的项目文件名</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7104"/>
+        <location filename="../mainwindow.cpp" line="7096"/>
        <source>File Name:</source>
        <translation>文件名：</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7112"/>
+        <location filename="../mainwindow.cpp" line="7104"/>
        <source>File Already Exists!</source>
        <translation>文件已存在！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7113"/>
+        <location filename="../mainwindow.cpp" line="7105"/>
        <source>File &apos;%1&apos; already exists!</source>
        <translation>文件&apos;%1&apos;已经存在！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6755"/>
+        <location filename="../mainwindow.cpp" line="6747"/>
        <source>Add to project</source>
        <translation>添加到项目</translation>
    </message>
@ -6502,78 +6541,78 @@ Are you really want to continue?</oldsource>
        <translation>本操作会删除此试题的所有案例。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6687"/>
+        <location filename="../mainwindow.cpp" line="6679"/>
        <source>Red Panda C++ project file (*.dev)</source>
        <translation>小熊猫C++项目文件(*.dev)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7560"/>
+        <location filename="../mainwindow.cpp" line="7552"/>
        <source>Rename Error</source>
        <translation>重命名出错</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7561"/>
+        <location filename="../mainwindow.cpp" line="7553"/>
        <source>Symbol &apos;%1&apos; is defined in system header.</source>
        <translation>符号&apos;%1&apos;在系统头文件中定义，无法修改。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7588"/>
+        <location filename="../mainwindow.cpp" line="7580"/>
        <source>New Name</source>
        <translation>新名称</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7758"/>
-        <location filename="../mainwindow.cpp" line="7781"/>
-        <location filename="../mainwindow.cpp" line="7792"/>
-        <location filename="../mainwindow.cpp" line="7813"/>
+        <location filename="../mainwindow.cpp" line="7750"/>
+        <location filename="../mainwindow.cpp" line="7773"/>
+        <location filename="../mainwindow.cpp" line="7784"/>
+        <location filename="../mainwindow.cpp" line="7805"/>
        <source>Replace Error</source>
        <translation>替换出错</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7759"/>
+        <location filename="../mainwindow.cpp" line="7751"/>
        <source>Can&apos;t open file &apos;%1&apos; for replace!</source>
        <translation>无法打开文件&apos;%1&apos;进行替换！</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7793"/>
+        <location filename="../mainwindow.cpp" line="7785"/>
        <source>Contents has changed since last search!</source>
        <translation>内容和上次查找时不一致。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7855"/>
+        <location filename="../mainwindow.cpp" line="7847"/>
        <source>Rich Text Format Files (*.rtf)</source>
        <translation>RTF格式文件 (*.rtf)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="7877"/>
+        <location filename="../mainwindow.cpp" line="7869"/>
        <source>HTML Files (*.html)</source>
        <translation>HTML文件 (*.html)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8082"/>
+        <location filename="../mainwindow.cpp" line="8074"/>
        <source>The current problem set is not empty.</source>
        <translation>当前的试题集不是空的。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8101"/>
+        <location filename="../mainwindow.cpp" line="8093"/>
        <source>Problem %1</source>
        <translation>试题%1</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8149"/>
-        <location filename="../mainwindow.cpp" line="8180"/>
+        <location filename="../mainwindow.cpp" line="8141"/>
+        <location filename="../mainwindow.cpp" line="8172"/>
        <source>Problem Set Files (*.pbs)</source>
        <translation>试题集文件 (*.pbs)</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8194"/>
-        <location filename="../mainwindow.cpp" line="9304"/>
+        <location filename="../mainwindow.cpp" line="8186"/>
+        <location filename="../mainwindow.cpp" line="9296"/>
        <source>Load Error</source>
        <translation>载入失败</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="4075"/>
-        <location filename="../mainwindow.cpp" line="8208"/>
+        <location filename="../mainwindow.cpp" line="8200"/>
        <source>Problem Case %1</source>
        <translation>试题案例%1</translation>
    </message>
@ -6589,11 +6628,9 @@ Are you really want to continue?</oldsource>
        <location filename="../mainwindow.cpp" line="3318"/>
        <location filename="../mainwindow.cpp" line="5081"/>
        <location filename="../mainwindow.cpp" line="5199"/>
-        <location filename="../mainwindow.cpp" line="5380"/>
-        <location filename="../mainwindow.cpp" line="5392"/>
-        <location filename="../mainwindow.cpp" line="5870"/>
-        <location filename="../mainwindow.cpp" line="5882"/>
-        <location filename="../mainwindow.cpp" line="9124"/>
+        <location filename="../mainwindow.cpp" line="5862"/>
+        <location filename="../mainwindow.cpp" line="5874"/>
+        <location filename="../mainwindow.cpp" line="9116"/>
        <source>Error</source>
        <translation>错误</translation>
    </message>
@ -6645,54 +6682,54 @@ Are you really want to continue?</oldsource>
        <translation>打开</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="5641"/>
+        <location filename="../mainwindow.cpp" line="5633"/>
        <source>Compile Failed</source>
        <translation>编译失败</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="5647"/>
+        <location filename="../mainwindow.cpp" line="5639"/>
        <source>Run Failed</source>
        <translation>运行失败</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="3349"/>
-        <location filename="../mainwindow.cpp" line="5899"/>
-        <location filename="../mainwindow.cpp" line="5913"/>
-        <location filename="../mainwindow.cpp" line="9107"/>
+        <location filename="../mainwindow.cpp" line="5891"/>
+        <location filename="../mainwindow.cpp" line="5905"/>
+        <location filename="../mainwindow.cpp" line="9099"/>
        <source>Confirm Convertion</source>
        <translation>确认转换</translation>
    </message>
    <message>
        <location filename="../mainwindow.cpp" line="3350"/>
-        <location filename="../mainwindow.cpp" line="5900"/>
-        <location filename="../mainwindow.cpp" line="5914"/>
-        <location filename="../mainwindow.cpp" line="9108"/>
+        <location filename="../mainwindow.cpp" line="5892"/>
+        <location filename="../mainwindow.cpp" line="5906"/>
+        <location filename="../mainwindow.cpp" line="9100"/>
        <source>The editing file will be saved using %1 encoding. &lt;br /&gt;This operation can&apos;t be reverted. &lt;br /&gt;Are you sure to continue?</source>
        <translation>当前编辑器中的文件将会使用%1编码保存。&lt;br /&gt;这项操作无法被撤回。&lt;br /&gt;你确定要继续吗？</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6058"/>
+        <location filename="../mainwindow.cpp" line="6050"/>
        <source>New Watch Expression</source>
        <translation>新监视表达式</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6059"/>
+        <location filename="../mainwindow.cpp" line="6051"/>
        <source>Enter Watch Expression (it is recommended to use &apos;this-&gt;&apos; for class members):</source>
        <translation>输入监视表达式</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6116"/>
+        <location filename="../mainwindow.cpp" line="6108"/>
        <source>Parsing file %1 of %2: &quot;%3&quot;</source>
        <translation>（%1/%2）正在解析文件&quot;%3&quot;</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6138"/>
-        <location filename="../mainwindow.cpp" line="6144"/>
+        <location filename="../mainwindow.cpp" line="6130"/>
+        <location filename="../mainwindow.cpp" line="6136"/>
        <source>Done parsing %1 files in %2 seconds</source>
        <translation>完成%1个文件的解析,用时%2秒</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="6141"/>
+        <location filename="../mainwindow.cpp" line="6133"/>
        <source>(%1 files per second)</source>
        <translation>(每秒%1个文件）</translation>
    </message>
@ -8137,7 +8174,7 @@ Are you really want to continue?</oldsource>
        <translation>生成调试信息(-g3)</translation>
    </message>
    <message>
-        <location filename="../settings.cpp" line="2976"/>
+        <location filename="../settings.cpp" line="2988"/>
        <source>Would you like Red Panda C++ to search for compilers in PATH?</source>
        <translation>您同意小熊猫C++在PATH路径中寻找gcc编译器吗？</translation>
    </message>
@ -8250,7 +8287,7 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">只生成汇编代码(-S)</translation>
    </message>
    <message>
-        <location filename="../settings.cpp" line="2978"/>
+        <location filename="../settings.cpp" line="2990"/>
        <source>Confirm</source>
        <translation>确认</translation>
    </message>
@ -8271,13 +8308,13 @@ Are you really want to continue?</oldsource>
        <translation type="vanished">如果仍然保留这些设置，可能会导致编译错误。&lt;br /&gt;&lt;br /&gt;请选择“是”，除非您清楚的知道选择“否”的后果，</translation>
    </message>
    <message>
-        <location filename="../settings.cpp" line="2968"/>
-        <location filename="../settings.cpp" line="2974"/>
+        <location filename="../settings.cpp" line="2980"/>
+        <location filename="../settings.cpp" line="2986"/>
        <source>Compiler set not configuared.</source>
        <translation>未配置编译器设置。</translation>
    </message>
    <message>
-        <location filename="../settings.cpp" line="2970"/>
+        <location filename="../settings.cpp" line="2982"/>
        <source>Would you like Red Panda C++ to search for compilers in the following locations: &lt;BR /&gt;&apos;%1&apos;&lt;BR /&gt;&apos;%2&apos;? </source>
        <translation>您需要小熊猫C++在下列位置搜索编译器吗：&lt;br /&gt;%1&lt;br /&gt;%2</translation>
    </message>
@ -9357,7 +9394,7 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.cpp" line="2118"/>
        <location filename="../mainwindow.cpp" line="2213"/>
-        <location filename="../mainwindow.cpp" line="9132"/>
+        <location filename="../mainwindow.cpp" line="9124"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="167"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="250"/>
        <source>Compiler Set</source>
@ -9366,7 +9403,7 @@ Are you really want to continue?</oldsource>
    <message>
        <location filename="../mainwindow.cpp" line="2119"/>
        <location filename="../mainwindow.cpp" line="2214"/>
-        <location filename="../mainwindow.cpp" line="9133"/>
+        <location filename="../mainwindow.cpp" line="9125"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="167"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="170"/>
        <source>Compiler</source>
@ -9378,7 +9415,7 @@ Are you really want to continue?</oldsource>
        <translation>自动链接</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8071"/>
+        <location filename="../mainwindow.cpp" line="8063"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="173"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="209"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="215"/>
@ -9455,15 +9492,15 @@ Are you really want to continue?</oldsource>
        <translation>杂项</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8072"/>
-        <location filename="../mainwindow.cpp" line="8431"/>
+        <location filename="../mainwindow.cpp" line="8064"/>
+        <location filename="../mainwindow.cpp" line="8423"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="209"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="212"/>
        <source>Program Runner</source>
        <translation>程序运行</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="8430"/>
+        <location filename="../mainwindow.cpp" line="8422"/>
        <location filename="../settingsdialog/settingsdialog.cpp" line="212"/>
        <source>Problem Set</source>
        <translation>试题集</translation>
--- a/RedPandaIDE/translations/RedPandaIDE_zh_TW.ts
+++ b/RedPandaIDE/translations/RedPandaIDE_zh_TW.ts
@ -931,6 +931,30 @@
        <source>Can&apos;t generate temporary backup file &apos;%1&apos;.</source>
        <translation type="unfinished"></translation>
    </message>
+    <message>
+        <source>Restore backup</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Backup file &apos;%1&apos; detected.</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Continue to save?</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Error occurred at last save.</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Do you want to load the backup file?</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Error Load File</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
    <name>EditorAutoSaveWidget</name>
@ -990,6 +1014,10 @@
        <source>Demo file name: </source>
        <translation type="unfinished"></translation>
    </message>
+    <message>
+        <source>Auto backup editing contents</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
    <name>EditorClipboardWidget</name>
--- a/libs/qsynedit/qsynedit/document.cpp
+++ b/libs/qsynedit/qsynedit/document.cpp
@ -41,7 +41,6 @@ Document::Document(const QFont& font, const QFont& nonAsciiFont, QObject *parent
      mMutex(QMutex::Recursive)
 #endif
 {
-
    mAppendNewLineAtEOF = true;
    mNewlineType = NewlineType::Windows;
    mIndexOfLongestLine = -1;
--- a/libs/qsynedit/qsynedit/qsynedit.cpp
+++ b/libs/qsynedit/qsynedit/qsynedit.cpp
@ -3972,6 +3972,11 @@ void QSynEdit::onScrolled(int)
    invalidate();
 }

+const QDateTime &QSynEdit::lastModifyTime() const
+{
+    return mLastModifyTime;
+}
+
 double QSynEdit::lineSpacingFactor() const
 {
    return mLineSpacingFactor;
--- a/libs/qsynedit/qsynedit/qsynedit.h
+++ b/libs/qsynedit/qsynedit/qsynedit.h
@ -784,6 +784,8 @@ protected:
    double lineSpacingFactor() const;
    void setLineSpacingFactor(double newLineSpacingFactor);

+    const QDateTime &lastModifyTime() const;
+
 protected:
    void dragEnterEvent(QDragEnterEvent *event) override;
    void dropEvent(QDropEvent *event) override;