fixed disabling keyframe bug

project/effectrow.cpp

@@ -68,6 +68,7 @@ void EffectRow::set_keyframe_enabled(bool enabled) {
 					ca->append(new KeyframeDelete(f, 0));
 				}
 			}
+			ca->append(new SetKeyframing(this, false));
 			undo_stack.push(ca);
 			panel_effect_controls->update_keyframes();
 		} else {

project/undo.cpp

@@ -1291,3 +1291,16 @@ void KeyframeFieldSet::redo() {
 	}
 	done = true;
 }
+
+SetKeyframing::SetKeyframing(EffectRow *irow, bool ib) :
+	row(irow),
+	b(ib)
+{}
+
+void SetKeyframing::undo() {
+	row->setKeyframing(!b);
+}
+
+void SetKeyframing::redo() {
+	row->setKeyframing(b);
+}

project/undo.h

@@ -641,4 +641,14 @@ private:
 	QVariant new_val;
 };
 
+class SetKeyframing : public QUndoCommand {
+public:
+	SetKeyframing(EffectRow* irow, bool ib);
+	void undo();
+	void redo();
+private:
+	EffectRow* row;
+	bool b;
+};
+
 #endif // UNDO_H

ui/graphview.cpp

@@ -713,10 +713,6 @@ void GraphView::wheelEvent(QWheelEvent *event) {
 			double new_zoom = (event->angleDelta().y() < 0) ? zoom - zoom_diff : zoom + zoom_diff;
 
 			// center zoom on screen
-			/*set_scroll_x(qRound(x_scroll + double(event->pos().x())*new_zoom - double(event->pos().x())*zoom));
-			set_scroll_y(qRound(y_scroll + double(height()-event->pos().y())*new_zoom - double(height()-event->pos().y())*zoom));*/
-			/*set_scroll_x(qRound((double(x_scroll)/zoom*new_zoom) + (double(event->pos().x())/zoom*new_zoom)));
-			set_scroll_y(qRound((double(y_scroll)/zoom*new_zoom)));*/
 			set_scroll_x(qRound((double(x_scroll)/zoom*new_zoom) + double(event->pos().x())*new_zoom - double(event->pos().x())*zoom));
 			set_scroll_y(qRound((double(y_scroll)/zoom*new_zoom) + double(height()-event->pos().y())*new_zoom - double(height()-event->pos().y())*zoom));