- enhancement: Press left/right arrow will move caret to the begin/end of the selection.

- enhancement: Press up/down arrow will move caret up/down from the begin/end of the selection.

NEWS.md

@@ -7,6 +7,9 @@ Red Panda C++ Version 2.24
   - fix: Goto definition/declaration may choose wrong symbol is multiple files are opened and symbols have the same name.
   - fix: "UTF-8 BOM" can't be correctly loaded as project file's encoding.
   - fix: Project file's encoding is not correctly updated after converted manually.
+  - enhancement: Press left/right arrow will move caret to the begin/end of the selection.
+  - enhancement: Press up/down arrow will move caret up/down from the begin/end of the selection.
+  
 
 Red Panda C++ Version 2.23
 

libs/qsynedit/qsynedit/qsynedit.cpp

@@ -4739,13 +4739,18 @@ void QSynEdit::processCommand(EditCommand Command, QChar AChar, void *pData)
     onCommandProcessed(Command, AChar, pData);
 }
 
-void QSynEdit::moveCaretHorz(int DX, bool isSelection)
+void QSynEdit::moveCaretHorz(int deltaX, bool isSelection)
 {
     BufferCoord ptO = caretXY();
     BufferCoord ptDst = ptO;
     QString s = displayLineText();
     int nLineLen = s.length();
-
+    if (!isSelection && selAvail() && (deltaX!=0)) {
+        if (deltaX<0)
+            ptDst = blockBegin();
+        else
+            ptDst = blockEnd();
+    } else {
         if (mOptions.testFlag(eoAltSetsColumnMode) &&
                              (mActiveSelectionMode != SelectionMode::Line)) {
             if (qApp->keyboardModifiers().testFlag(Qt::AltModifier) && !mReadOnly) {
@@ -4757,7 +4762,7 @@ void QSynEdit::moveCaretHorz(int DX, bool isSelection)
         // only moving or selecting one char can change the line
         //bool bChangeY = !mOptions.testFlag(SynEditorOption::eoScrollPastEol);
         bool bChangeY=true;
-    if (bChangeY && (DX == -1) && (ptO.ch == 1) && (ptO.line > 1)) {
+        if (bChangeY && (deltaX == -1) && (ptO.ch == 1) && (ptO.line > 1)) {
             // end of previous line
             if (mActiveSelectionMode==SelectionMode::Column) {
                 return;
@@ -4769,7 +4774,7 @@ void QSynEdit::moveCaretHorz(int DX, bool isSelection)
                 ptDst.line = line;
                 ptDst.ch = getDisplayStringAtLine(ptDst.line).length() + 1;
             }
-    } else if (bChangeY && (DX == 1) && (ptO.ch > nLineLen) && (ptO.line < mDocument->count())) {
+        } else if (bChangeY && (deltaX == 1) && (ptO.ch > nLineLen) && (ptO.line < mDocument->count())) {
             // start of next line
             if (mActiveSelectionMode==SelectionMode::Column) {
                 return;
@@ -4783,11 +4788,12 @@ void QSynEdit::moveCaretHorz(int DX, bool isSelection)
                 ptDst.ch = 1;
             }
         } else {
-        ptDst.ch = std::max(1, ptDst.ch + DX);
+            ptDst.ch = std::max(1, ptDst.ch + deltaX);
             // don't go past last char when ScrollPastEol option not set
-        if ((DX > 0) && bChangeY)
+            if ((deltaX > 0) && bChangeY)
               ptDst.ch = std::min(ptDst.ch, nLineLen + 1);
         }
+    }
     // set caret and block begin / end
     incPaintLock();
 
@@ -4795,13 +4801,19 @@ void QSynEdit::moveCaretHorz(int DX, bool isSelection)
     decPaintLock();
 }
 
-void QSynEdit::moveCaretVert(int DY, bool isSelection)
+void QSynEdit::moveCaretVert(int deltaY, bool isSelection)
 {
     DisplayCoord ptO = displayXY();
     DisplayCoord ptDst = ptO;
-    ptDst.Row+=DY;
+    if (!isSelection && selAvail()) {
+        if (deltaY<0)
+            ptDst = bufferToDisplayPos(blockBegin());
+        else
+            ptDst = bufferToDisplayPos(blockEnd());
+    }
+    ptDst.Row+=deltaY;
 
-    if (DY >= 0) {
+    if (deltaY >= 0) {
         if (rowToLine(ptDst.Row) > mDocument->count()) {
             ptDst.Row = std::max(1, displayLineCount());
         }
@@ -4824,7 +4836,7 @@ void QSynEdit::moveCaretVert(int DY, bool isSelection)
     }
 
     BufferCoord vDstLineChar;
-    if (ptDst.Row == ptO.Row && isSelection && DY!=0) {
+    if (ptDst.Row == ptO.Row && isSelection && deltaY!=0) {
         if (ptDst.Row==1) {
             vDstLineChar.ch=1;
             vDstLineChar.line=1;

libs/qsynedit/qsynedit/qsynedit.h

@@ -536,8 +536,8 @@ private:
      * @param DX
      * @param SelectionCommand
      */
-    void moveCaretHorz(int DX, bool isSelection);
-    void moveCaretVert(int DY, bool isSelection);
+    void moveCaretHorz(int deltaX, bool isSelection);
+    void moveCaretVert(int deltaY, bool isSelection);
     void moveCaretAndSelection(const BufferCoord& ptBefore, const BufferCoord& ptAfter,
                                bool isSelection);
     void moveCaretToLineStart(bool isSelection);