- enhancement: Internal optimization for open/edit files.

NEWS.md

@@ -31,6 +31,7 @@ Red Panda C++ Version 2.27
   - fix: "float" in #include "float.h" is wrong syntax colored.
   - enhancement: Unify syntax color for #include header name
   - enhancement: Issue #229 Press Enter/Return in the tree view in files panel will open the file.
+  - enhancement: Internal optimization for open/edit files.
 
 Red Panda C++ Version 2.26
   - enhancement: Code suggestion for embedded std::vectors.

RedPandaIDE/editor.cpp

@@ -5298,6 +5298,7 @@ void Editor::setActiveBreakpointFocus(int Line, bool setFocus)
 
 void Editor::applySettings()
 {
+    incPaintLock();
     QSynedit::EditorOptions options = QSynedit::eoAltSetsColumnMode |
             QSynedit::eoDragDropEditing | QSynedit::eoDropFiles |  QSynedit::eoKeepCaretX | QSynedit::eoTabsToSpaces |
             QSynedit::eoRightMouseMovesCursor | QSynedit::eoScrollByOneLess | QSynedit::eoTabIndent | QSynedit::eoHideShowScrollbars | QSynedit::eoGroupUndo
@@ -5414,6 +5415,7 @@ void Editor::applySettings()
     setMouseWheelScrollSpeed(pSettings->editor().mouseWheelScrollSpeed());
     setMouseSelectionScrollSpeed(pSettings->editor().mouseSelectionScrollSpeed());
     invalidate();
+    decPaintLock();
 }
 
 static QSynedit::PTokenAttribute createRainbowAttribute(const QString& attrName, const QString& schemeName, const QString& schemeItemName) {

libs/qsynedit/qsynedit/document.cpp

@@ -146,7 +146,10 @@ int Document::longestLineWidth() {
         mIndexOfLongestLine = -1;
         if (mLines.count() > 0 ) {
             for (int i=0;i<mLines.size();i++) {
-                int len = lineWidth(i);
+                int len = mLines[i]->width();
+                //Just estimate it.
+                if (len<0)
+                    len = mCharWidth * mLines[i]->lineText().length();
                 if (len > MaxLen) {
                     MaxLen = len;
                     mIndexOfLongestLine = i;

libs/qsynedit/qsynedit/qsynedit.cpp

@@ -634,7 +634,12 @@ bool QSynEdit::pointToLine(const QPoint &point, int &line)
 
 void QSynEdit::invalidateGutter()
 {
+    if (mPaintLock>0) {
+        mStateFlags.setFlag(StateFlag::sfGutterRedrawNeeded);
+    } else {
+        mStateFlags.setFlag(StateFlag::sfGutterRedrawNeeded, false);
         invalidateGutterLines(-1, -1);
+    }
 }
 
 void QSynEdit::invalidateGutterLine(int aLine)
@@ -1050,10 +1055,12 @@ void QSynEdit::invalidateRect(const QRect &rect)
 
 void QSynEdit::invalidate()
 {
-    if (mPainterLock>0)
-        return;
-    // qDebug()<<"invalidate";
+    if (mPainterLock>0) {
+        mStateFlags.setFlag(StateFlag::sfRedrawNeeded);
+    } else {
+        mStateFlags.setFlag(StateFlag::sfRedrawNeeded, false);
         viewport()->update();
+    }
 }
 
 void QSynEdit::lockPainter()
@@ -2968,6 +2975,10 @@ void QSynEdit::decPaintLock()
         }
         if (mStateFlags.testFlag(StateFlag::sfCaretChanged))
             updateCaret();
+        if (mStateFlags.testFlag(StateFlag::sfGutterRedrawNeeded))
+            invalidateGutter();
+        if (mStateFlags.testFlag(StateFlag::sfRedrawNeeded))
+            invalidate();
         if (mStatusChanges!=0)
             doOnStatusChange(mStatusChanges);
         onEndFirstPaintLock();
@@ -3001,8 +3012,10 @@ QRect QSynEdit::clientRect() const
 
 void QSynEdit::synFontChanged()
 {
+    incPaintLock();
     recalcCharExtent();
     onSizeOrFontChanged(true);
+    decPaintLock();
 }
 
 
@@ -3799,8 +3812,12 @@ void QSynEdit::setLineSpacingFactor(double newLineSpacingFactor)
 {
     if (newLineSpacingFactor<1.0)
         newLineSpacingFactor = 1.0;
+    if (mLineSpacingFactor != newLineSpacingFactor) {
+        incPaintLock();
         mLineSpacingFactor = newLineSpacingFactor;
         recalcCharExtent();
+        decPaintLock();
+    }
 }
 
 ScrollStyle QSynEdit::scrollBars() const
@@ -3912,8 +3929,10 @@ int QSynEdit::rightEdge() const
 void QSynEdit::setRightEdge(int newRightEdge)
 {
     if (mRightEdge != newRightEdge) {
+        incPaintLock();
         mRightEdge = newRightEdge;
         invalidate();
+        decPaintLock();
     }
 }
 
@@ -4006,8 +4025,10 @@ void QSynEdit::setCaretColor(const QColor &caretColor)
 void QSynEdit::setTabSize(int newTabSize)
 {
     if (newTabSize!=tabSize()) {
+        incPaintLock();
         mDocument->setTabSize(newTabSize);
         invalidate();
+        decPaintLock();
     }
 }
 
@@ -4023,6 +4044,7 @@ static bool sameEditorOption(const EditorOptions& value1, const EditorOptions& v
 void QSynEdit::setOptions(const EditorOptions &Value)
 {
     if (Value != mOptions) {
+        incPaintLock();
         //bool bSetDrag = mOptions.testFlag(eoDropFiles) != Value.testFlag(eoDropFiles);
         //if  (!mOptions.testFlag(eoScrollPastEol))
         setLeftPos(mLeftPos);
@@ -4037,8 +4059,6 @@ void QSynEdit::setOptions(const EditorOptions &Value)
                 || !sameEditorOption(Value,mOptions, eoShowTrailingSpaces)
                 || !sameEditorOption(Value,mOptions, eoShowLineBreaks)
                 || !sameEditorOption(Value,mOptions, eoShowRainbowColor);
-        //bool bUpdateScroll = (Options * ScrollOptions)<>(Value * ScrollOptions);
-        bool bUpdateScroll = true;
         mOptions = Value;
 
         mDocument->setForceMonospace(mOptions.testFlag(eoForceMonospace) );
@@ -4052,13 +4072,9 @@ void QSynEdit::setOptions(const EditorOptions &Value)
             setBlockEnd(vTempBlockEnd);
         }
         updateScrollbars();
-      // (un)register HWND as drop target
-//      if bSetDrag and not (csDesigning in ComponentState) and HandleAllocated then
-//        DragAcceptFiles(Handle, (eoDropFiles in fOptions));
         if (bUpdateAll)
             invalidate();
-        if (bUpdateScroll)
-            updateScrollbars();
+        decPaintLock();
     }
 }
 
@@ -6889,6 +6905,7 @@ void QSynEdit::setTopLine(int Value)
 
 void QSynEdit::onGutterChanged()
 {
+    incPaintLock();
     if (mGutter.showLineNumbers() && mGutter.autoSize())
         mGutter.autoSizeDigitCount(mDocument->count());
     int nW;
@@ -6902,6 +6919,7 @@ void QSynEdit::onGutterChanged()
         invalidateGutter();
     else
         setGutterWidth(nW);
+    decPaintLock();
 }
 
 void QSynEdit::onScrollTimeout()

libs/qsynedit/qsynedit/qsynedit.h

@@ -67,7 +67,9 @@ enum class StateFlag  {
     sfIgnoreNextChar =      0x0008,
     sfCaretVisible =        0x0010,
     sfDblClicked =          0x0020,
-    sfWaitForDragging = 0x0040
+    sfWaitForDragging =     0x0040,
+    sfRedrawNeeded =        0x0080,
+    sfGutterRedrawNeeded =  0x0100,
 };
 
 Q_DECLARE_FLAGS(StateFlags,StateFlag)
@@ -271,6 +273,8 @@ public:
     void addGroupBreak();
     void beginEditing();
     void endEditing();
+    void beginSetting();
+    void endSetting();
     void addCaretToUndo();
     void addLeftTopToUndo();
     void addSelectionToUndo();
@@ -498,6 +502,8 @@ protected:
 
 protected:
     void doSelectLine();
+    void incPaintLock();
+    void decPaintLock();
 private:
     BufferCoord ensureBufferCoordValid(const BufferCoord& coord);
     void beginEditingWithoutUndo();
@@ -506,8 +512,7 @@ private:
     void computeCaret();
     void computeScroll(bool isDragging);
 
-    void incPaintLock();
-    void decPaintLock();
+
     int clientWidth() const;
     int clientHeight() const;
     int clientTop() const;
@@ -743,6 +748,7 @@ private:
     int mPaintTransientLock;
     bool mIsScrolling;
     int mPainterLock; // lock counter to prevent repaint while painting
+    int mOptionLock; // lock counter to prevent recalculate glyph widths while change settings;
     bool mUndoing;
     // event handlers
     // ProcessCommandProc mOnCommandProcessed;