attempt to fix alt+left and alt+right (not working yet)

Author: XiaoMigros

src/engraving/dom/textbase.cpp

@@ -3359,30 +3359,18 @@ bool TextBase::editNonTextual(EditData& ed)
         return false;
     }
 
-    bool leftRightKey = ed.key == Key_Left || ed.key == Key_Right;
-    bool altMod = ed.modifiers & AltModifier;
-    bool shiftMod = ed.modifiers & ShiftModifier;
-
-    bool changeAnchorType = shiftMod && altMod && leftRightKey;
-    if (changeAnchorType) {
-        undoChangeProperty(Pid::ANCHOR_TO_END_OF_PREVIOUS, !anchorToEndOfPrevious(), propertyFlags(Pid::ANCHOR_TO_END_OF_PREVIOUS));
-    }
-    bool doesntNeedMoveSeg = changeAnchorType && ((ed.key == Key_Left && anchorToEndOfPrevious())
-                                                  || (ed.key == Key_Right && !anchorToEndOfPrevious()));
-    if (doesntNeedMoveSeg) {
-        checkMeasureBoundariesAndMoveIfNeed();
-        return true;
-    }
-
-    bool moveSeg = shiftMod && (leftRightKey || ed.key == Key_Home || ed.key == Key_End);
-    if (moveSeg) {
+    Segment* oldSeg = toSegment(parent());
+    if (ed.modifiers & ShiftModifier
+        && (ed.key == Key_Left || ed.key == Key_Right || ed.key == Key_Home || ed.key == Key_End)) {
         bool moved = moveSegment(ed);
-        EditTimeTickAnchors::updateAnchors(this, track());
+        if (oldSeg != toSegment(parent())) {
+            EditTimeTickAnchors::updateAnchors(this, track());
+        }
         checkMeasureBoundariesAndMoveIfNeed();
         return moved;
     }
 
-    if (shiftMod) {
+    if (ed.modifiers & ShiftModifier) {
         return false;
     }
 
@@ -3462,11 +3450,28 @@ bool TextBase::moveSegment(const EditData& ed)
     }
 
     Segment* newSeg = nullptr;
-    Segment* prevSeg = curSeg;
-    if (anchorToEndOfPrevious() && prevSeg->prev1ChordRestOrTimeTick()) {
-        curSeg = prevSeg->prev1ChordRestOrTimeTick();
+
+    bool beforeFirstSeg = false;
+
+    if (anchorToEndOfPrevious()) {
+        if (curSeg->prev1ChordRestOrTimeTick()) {
+            if (ed.key == Key_Right || ed.key == Key_End) {
+                curSeg = curSeg->prev1ChordRestOrTimeTick();
+            }
+        } else {
+            beforeFirstSeg = true;
+        }
+    }
+
+    if (ed.modifiers & AltModifier) {
+        undoChangeProperty(Pid::ANCHOR_TO_END_OF_PREVIOUS, !anchorToEndOfPrevious(), propertyFlags(Pid::ANCHOR_TO_END_OF_PREVIOUS));
+    } else {
+        undoResetProperty(Pid::ANCHOR_TO_END_OF_PREVIOUS);
+    }
+
+    if (beforeFirstSeg) {
+        return true;
     }
-    bool endAnchor = false;
 
     switch (ed.key) {
     case Key_Left: {
@@ -3487,7 +3492,6 @@ bool TextBase::moveSegment(const EditData& ed)
                 Measure* m = score()->lastMeasure();
                 EditTimeTickAnchors::updateAnchors(m, staffIdx());
                 newSeg = m->getChordRestOrTimeTickSegment(m->endTick());
-                endAnchor = true;
             }
         } else {
             newSeg = curSeg->next1ChordRestOrTimeTick();
@@ -3510,21 +3514,14 @@ bool TextBase::moveSegment(const EditData& ed)
             Measure* m = score()->lastMeasure();
             EditTimeTickAnchors::updateAnchors(m, staffIdx());
             newSeg = m->getChordRestOrTimeTickSegment(m->endTick());
-            endAnchor = true;
         }
         break;
     }
     default:
         break;
     }
 
-    if (endAnchor && !anchorToEndOfPrevious()) {
-        undoChangeProperty(Pid::ANCHOR_TO_END_OF_PREVIOUS, true, propertyFlags(Pid::ANCHOR_TO_END_OF_PREVIOUS));
-    } else if (!(ed.modifiers & AltModifier) && anchorToEndOfPrevious()) {
-        undoResetProperty(Pid::ANCHOR_TO_END_OF_PREVIOUS);
-    }
-
-    if (!newSeg || newSeg == prevSeg) {
+    if (!newSeg) {
         return false;
     }