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improve mouse drag-and-drop effect

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This commit is contained in:
DreamSourceLab 2015-06-24 22:23:47 +08:00
parent 3bc3da8a35
commit be3602df32
1 changed files with 2 additions and 2 deletions
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4
DSView/pv/view/viewport.cpp
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@ -512,10 +512,10 @@ void Viewport::mouseReleaseEvent(QMouseEvent *event)
_drag_sig.reset();
const double strength = _drag_strength*DragTimerInterval*1.0/_time.elapsed();
if (_drag_strength < MinorDragOffsetUp && abs(strength) > MinorDragRateUp) {
if (abs(_drag_strength) < MinorDragOffsetUp && abs(strength) > MinorDragRateUp) {
_drag_strength = _drag_strength;
_drag_timer.start(DragTimerInterval);
} else if (abs(strength) > 0.5*DragTimerInterval) {
} else if (abs(strength) > DragTimerInterval) {
_drag_strength = strength * 5;
_drag_timer.start(DragTimerInterval);
} else {