X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Fmarginwidget.hpp;fp=pv%2Fview%2Fmarginwidget.hpp;h=54ace028fcda121bd79588c20a1b32d6af159c67;hb=2f7982367e8382e05c862de7afc71075ded5f606;hp=35d557d10ccab7dcae57f57f6c990bce7c85e9d6;hpb=e47b69882ca7299041123c664dbcc8b552c5db99;p=pulseview.git

diff --git a/pv/view/marginwidget.hpp b/pv/view/marginwidget.hpp
index 35d557d1..54ace028 100644
--- a/pv/view/marginwidget.hpp
+++ b/pv/view/marginwidget.hpp
@@ -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);