X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fviewitem.hpp;h=7579b555cdc460b36207c1f64fcab7f260eca2a9;hp=1e02ffde289514bac8bf816aef3532ea46630e5f;hb=1f1edc092680e9182be07a760ad03d00b8c5ca06;hpb=ec39632d1267a42cb858ac6ad7c98486886a46a0

diff --git a/pv/view/viewitem.hpp b/pv/view/viewitem.hpp
index 1e02ffde..7579b555 100644
--- a/pv/view/viewitem.hpp
+++ b/pv/view/viewitem.hpp
@@ -71,11 +71,6 @@ public:
 	 */
 	bool dragging() const;
 
-	/**
-	 * Retunrns the current drag point.
-	 */
-	QPoint drag_point() const;
-
 	/**
 	 * Sets this item into the dragged state.
 	 */
@@ -86,10 +81,17 @@ public:
 	 */
 	void drag_release();
 
+	/**
+	 * Drags the item to a delta relative to the drag point.
+	 * @param delta the offset from the drag point.
+	 */
+	virtual void drag_by(const QPoint &delta) = 0;
+
 	/**
 	 * Get the drag point.
+	 * @param rect the rectangle of the widget area.
 	 */
-	virtual QPoint point() const = 0;
+	virtual QPoint point(const QRect &rect) const = 0;
 
 	/**
 	 * Computes the outline rectangle of a label.
@@ -98,6 +100,14 @@ public:
 	 */
 	virtual QRectF label_rect(const QRectF &rect) const = 0;
 
+	/**
+	 * Computes the outline rectangle of the viewport hit-box.
+	 * @param rect the rectangle of the viewport area.
+	 * @return Returns the rectangle of the hit-box.
+	 * @remarks The default implementation returns an empty hit-box.
+	 */
+	virtual QRectF hit_box_rect(const QRectF &rect) const;
+
 	/**
 	 * Paints the signal label.
 	 * @param p the QPainter to paint into.
@@ -148,10 +158,10 @@ protected:
 
 protected:
 	QWidget *context_parent_;
+	QPoint drag_point_;
 
 private:
 	bool selected_;
-	QPoint drag_point_;
 };
 
 } // namespace view