add ImageView::hovered

libs/widgets/image_view.cpp

@@ -104,6 +104,12 @@ void ImageView::mousePressEvent(QMouseEvent * e) {
 }
 
 
+void ImageView::mouseMoveEvent(QMouseEvent * e) {
+	QGraphicsView::mouseMoveEvent(e);
+	emit hovered(mapToScene(e->pos()), e->buttons());
+}
+
+
 void ImageView::wheelEvent(QWheelEvent * e) {
 	if (!e->modifiers().testFlag(Qt::ControlModifier) || !viewInteractive()) return;
 	double scl = 1. + e->angleDelta().y() / 500.;

libs/widgets/image_view.h

@@ -55,10 +55,12 @@ public slots:
 
 signals:
 	void clicked(QPointF, Qt::MouseButtons);
+	void hovered(QPointF, Qt::MouseButtons);
 
 private:
 	void mouseDoubleClickEvent(QMouseEvent *) override;
 	void mousePressEvent(QMouseEvent * e) override;
+	void mouseMoveEvent(QMouseEvent * e) override;
 	void wheelEvent(QWheelEvent * e) override;
 	bool eventFilter(QObject * o, QEvent * e) override;
 	void adjustView();