ui: fixed bezier edge to remove highlight when not hovered anymore

src/lib_gui/qt/graphics/base/QtGraphicsView.cpp

@@ -254,6 +254,12 @@ void QtGraphicsView::mousePressEvent(QMouseEvent *event)
 	QGraphicsView::mousePressEvent(event);
 }
 
+void QtGraphicsView::mouseMoveEvent(QMouseEvent *event)
+{
+	QtGraphEdge::unfocusBezierEdge();
+	QGraphicsView::mouseMoveEvent(event);
+}
+
 void QtGraphicsView::mouseReleaseEvent(QMouseEvent *event)
 {
 	if (event->button() == Qt::LeftButton && !itemAt(event->pos()) && event->pos() == m_last)

src/lib_gui/qt/graphics/base/QtGraphicsView.h

@@ -37,6 +37,7 @@ protected:
 	void resizeEvent(QResizeEvent* event);
 
 	void mousePressEvent(QMouseEvent* event);
+	void mouseMoveEvent(QMouseEvent* event);
 	void mouseReleaseEvent(QMouseEvent* event);
 
 	void keyPressEvent(QKeyEvent* event);

src/lib_gui/qt/graphics/graph/QtGraphEdge.cpp

@@ -26,6 +26,14 @@
 QtGraphEdge* QtGraphEdge::s_focusedEdge = nullptr;
 QtGraphEdge* QtGraphEdge::s_focusedBezierEdge = nullptr;
 
+void QtGraphEdge::unfocusBezierEdge()
+{
+	if (s_focusedBezierEdge)
+	{
+		s_focusedBezierEdge->focusOut();
+	}
+}
+
 QtGraphEdge::QtGraphEdge(
 	QtGraphNode* owner,
 	QtGraphNode* target,

src/lib_gui/qt/graphics/graph/QtGraphEdge.h

@@ -21,6 +21,8 @@ class QtGraphEdge
 	Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)
 
 public:
+	static void unfocusBezierEdge();
+
 	QtGraphEdge(
 		QtGraphNode* owner,
 		QtGraphNode* target,