X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fmarginwidget.hpp;h=308d9348d12a0341aa6a203cd1b214a8c74839cf;hp=35d557d10ccab7dcae57f57f6c990bce7c85e9d6;hb=40aca27ed83559f7f79873e353f64d2c36a18fce;hpb=e47b69882ca7299041123c664dbcc8b552c5db99

diff --git a/pv/view/marginwidget.hpp b/pv/view/marginwidget.hpp
index 35d557d1..308d9348 100644
--- a/pv/view/marginwidget.hpp
+++ b/pv/view/marginwidget.hpp
@@ -24,15 +24,15 @@
 #include <memory>
 
 #include <QPoint>
-#include <QWidget>
+
+#include "viewwidget.hpp"
 
 namespace pv {
 namespace view {
 
-class View;
 class ViewItem;
 
-class MarginWidget : public QWidget
+class MarginWidget : public ViewWidget
 {
 	Q_OBJECT
 
@@ -67,6 +67,18 @@ protected:
 	 */
 	void show_popup(const std::shared_ptr<ViewItem> &item);
 
+	/**
+	 * Returns true if the selection of row items allows dragging.
+	 * @return Returns true if the drag is acceptable.
+	 */
+	virtual bool accept_drag() const = 0;
+
+	/**
+	 * Drag the dragging items by the delta offset.
+	 * @param delta the drag offset in pixels.
+	 */
+	virtual void drag_items(const QPoint &delta) = 0;
+
 	/**
 	 * Handles left mouse button press events.
 	 * @param event the mouse event that triggered this handler.
@@ -82,6 +94,7 @@ protected:
 protected:
 	void mousePressEvent(QMouseEvent * event);
 	void mouseReleaseEvent(QMouseEvent *event);
+	void mouseMoveEvent(QMouseEvent *event);
 
 	void leaveEvent(QEvent *event);
 
@@ -96,7 +109,6 @@ Q_SIGNALS:
 	void selection_changed();
 
 protected:
-	pv::view::View &view_;
 	QPoint mouse_point_;
 	QPoint mouse_down_point_;
 	std::shared_ptr<ViewItem> mouse_down_item_;