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-rw-r--r--src/Editor.cxx65
-rw-r--r--src/Editor.h5
2 files changed, 47 insertions, 23 deletions
diff --git a/src/Editor.cxx b/src/Editor.cxx
index addfedf6e..8a2000090 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -362,7 +362,7 @@ Editor::Editor() {
dwelling = false;
ptMouseLast.x = 0;
ptMouseLast.y = 0;
- inDragDrop = false;
+ inDragDrop = ddNone;
dropWentOutside = false;
posDrag = invalidPosition;
posDrop = invalidPosition;
@@ -5000,6 +5000,13 @@ void Editor::DisplayCursor(Window::Cursor c) {
wMain.SetCursor(static_cast<Window::Cursor>(cursorMode));
}
+bool Editor::DragThreshold(Point ptStart, Point ptNow) {
+ int xMove = ptStart.x - ptNow.x;
+ int yMove = ptStart.y - ptNow.y;
+ int distanceSquared = xMove * xMove + yMove * yMove;
+ return distanceSquared > 16;
+}
+
void Editor::StartDrag() {
// Always handled by subclasses
//SetMouseCapture(true);
@@ -5007,8 +5014,8 @@ void Editor::StartDrag() {
}
void Editor::DropAt(int position, const char *value, bool moving, bool rectangular) {
- //Platform::DebugPrintf("DropAt %d\n", inDragDrop);
- if (inDragDrop)
+ //Platform::DebugPrintf("DropAt %d %d\n", inDragDrop, position);
+ if (inDragDrop == ddDragging)
dropWentOutside = false;
int positionWasInSelection = PositionInSelection(position);
@@ -5016,7 +5023,7 @@ void Editor::DropAt(int position, const char *value, bool moving, bool rectangul
bool positionOnEdgeOfSelection =
(position == SelectionStart()) || (position == SelectionEnd());
- if ((!inDragDrop) || !(0 == positionWasInSelection) ||
+ if ((inDragDrop != ddDragging) || !(0 == positionWasInSelection) ||
(positionOnEdgeOfSelection && !moving)) {
int selStart = SelectionStart();
@@ -5025,7 +5032,7 @@ void Editor::DropAt(int position, const char *value, bool moving, bool rectangul
pdoc->BeginUndoAction();
int positionAfterDeletion = position;
- if (inDragDrop && moving) {
+ if ((inDragDrop == ddDragging) && moving) {
// Remove dragged out text
if (rectangular || selType == selLines) {
SelectionLineIterator lineIterator(this);
@@ -5059,7 +5066,7 @@ void Editor::DropAt(int position, const char *value, bool moving, bool rectangul
}
pdoc->EndUndoAction();
}
- } else if (inDragDrop) {
+ } else if (inDragDrop == ddDragging) {
SetEmptySelection(position);
}
}
@@ -5161,11 +5168,11 @@ void Editor::DwellEnd(bool mouseMoved) {
}
void Editor::ButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
- //Platform::DebugPrintf("Scintilla:ButtonDown %d %d = %d alt=%d\n", curTime, lastClickTime, curTime - lastClickTime, alt);
+ //Platform::DebugPrintf("ButtonDown %d %d = %d alt=%d %d\n", curTime, lastClickTime, curTime - lastClickTime, alt, inDragDrop);
ptMouseLast = pt;
int newPos = PositionFromLocation(pt);
newPos = MovePositionOutsideChar(newPos, currentPos - newPos);
- inDragDrop = false;
+ inDragDrop = ddNone;
moveExtendsSelection = false;
bool processed = NotifyMarginClick(pt, shift, ctrl, alt);
@@ -5250,16 +5257,14 @@ void Editor::ButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, b
NotifyHotSpotClicked(newPos, shift, ctrl, alt);
}
if (!shift) {
- inDragDrop = PointInSelection(pt) && !SelectionEmpty();
+ if (PointInSelection(pt) && !SelectionEmpty())
+ inDragDrop = ddInitial;
+ else
+ inDragDrop = ddNone;
}
- if (inDragDrop) {
- SetMouseCapture(false);
- SetDragPosition(newPos);
- CopySelectionRange(&drag);
- StartDrag();
- } else {
+ SetMouseCapture(true);
+ if (inDragDrop != ddInitial) {
SetDragPosition(invalidPosition);
- SetMouseCapture(true);
if (!shift) {
SetEmptySelection(newPos);
}
@@ -5328,6 +5333,20 @@ void Editor::ButtonMove(Point pt) {
if ((ptMouseLast.x != pt.x) || (ptMouseLast.y != pt.y)) {
DwellEnd(true);
}
+
+ int movePos = PositionFromLocation(pt);
+ movePos = MovePositionOutsideChar(movePos, currentPos - movePos);
+
+ if (inDragDrop == ddInitial) {
+ if (DragThreshold(ptMouseLast, pt)) {
+ SetMouseCapture(false);
+ SetDragPosition(movePos);
+ CopySelectionRange(&drag);
+ StartDrag();
+ }
+ return;
+ }
+
ptMouseLast = pt;
//Platform::DebugPrintf("Move %d %d\n", pt.x, pt.y);
if (HaveMouseCapture()) {
@@ -5339,8 +5358,6 @@ void Editor::ButtonMove(Point pt) {
autoScrollTimer.ticksToWait = autoScrollDelay;
// Adjust selection
- int movePos = PositionFromLocation(pt);
- movePos = MovePositionOutsideChar(movePos, currentPos - movePos);
if (posDrag >= 0) {
SetDragPosition(movePos);
} else {
@@ -5416,7 +5433,13 @@ void Editor::ButtonMove(Point pt) {
}
void Editor::ButtonUp(Point pt, unsigned int curTime, bool ctrl) {
- //Platform::DebugPrintf("ButtonUp %d\n", HaveMouseCapture());
+ //Platform::DebugPrintf("ButtonUp %d %d\n", HaveMouseCapture(), inDragDrop);
+ int newPos = PositionFromLocation(pt);
+ newPos = MovePositionOutsideChar(newPos, currentPos - newPos);
+ if (inDragDrop == ddInitial) {
+ inDragDrop = ddNone;
+ SetEmptySelection(newPos);
+ }
if (HaveMouseCapture()) {
if (PointInSelMargin(pt)) {
DisplayCursor(Window::cursorReverseArrow);
@@ -5429,7 +5452,7 @@ void Editor::ButtonUp(Point pt, unsigned int curTime, bool ctrl) {
int newPos = PositionFromLocation(pt);
newPos = MovePositionOutsideChar(newPos, currentPos - newPos);
NotifyIndicatorClick(false, newPos, false, false, false);
- if (inDragDrop) {
+ if (inDragDrop == ddDragging) {
int selStart = SelectionStart();
int selEnd = SelectionEnd();
if (selStart < selEnd) {
@@ -5468,7 +5491,7 @@ void Editor::ButtonUp(Point pt, unsigned int curTime, bool ctrl) {
if (selType == selStream) {
SetLastXChosen();
}
- inDragDrop = false;
+ inDragDrop = ddNone;
EnsureCaretVisible(false);
}
}
diff --git a/src/Editor.h b/src/Editor.h
index 04bf21958..ef061e46f 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -246,7 +246,7 @@ protected: // ScintillaBase subclass needs access to much of Editor
bool dwelling;
enum { selChar, selWord, selLine } selectionType;
Point ptMouseLast;
- bool inDragDrop;
+ enum { ddNone, ddInitial, ddDragging } inDragDrop;
bool dropWentOutside;
int posDrag;
int posDrop;
@@ -415,7 +415,7 @@ protected: // ScintillaBase subclass needs access to much of Editor
virtual void AddCharUTF(char *s, unsigned int len, bool treatAsDBCS=false);
void ClearSelection();
void ClearAll();
- void ClearDocumentStyle();
+ void ClearDocumentStyle();
void Cut();
void PasteRectangular(int pos, const char *ptr, int len);
virtual void Copy() = 0;
@@ -489,6 +489,7 @@ protected: // ScintillaBase subclass needs access to much of Editor
void CopyText(int length, const char *text);
void SetDragPosition(int newPos);
virtual void DisplayCursor(Window::Cursor c);
+ virtual bool DragThreshold(Point ptStart, Point ptNow);
virtual void StartDrag();
void DropAt(int position, const char *value, bool moving, bool rectangular);
/** PositionInSelection returns 0 if position in selection, -1 if position before selection, and 1 if after.
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-12 21:39:18 +0000