+bool View::eventFilter(QObject *object, QEvent *event)
+{
+ const QEvent::Type type = event->type();
+ if(type == QEvent::MouseMove) {
+
+ const QMouseEvent *const mouse_event = (QMouseEvent*)event;
+ if(object == _viewport)
+ _hover_point = mouse_event->pos();
+ else if(object == _ruler)
+ _hover_point = QPoint(mouse_event->x(), 0);
+ else if(object == _header)
+ _hover_point = QPoint(0, mouse_event->y());
+ else
+ _hover_point = QPoint(-1, -1);
+
+ hover_point_changed();
+
+ } else if(type == QEvent::Leave) {
+ _hover_point = QPoint(-1, -1);
+ hover_point_changed();
+ }
+
+ return QObject::eventFilter(object, event);
+}
+