X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fviewitem.hpp;h=ee77c4ae5610ef915578eac82de0e13e7ae95723;hp=4c3df154072c8ca5f3c2b06d67d4f0ab7f5d5408;hb=7a01bd3654ed046216308fa64edfd79be7cd525f;hpb=d4e39570ee6021766c375654801dddba45b9198a

diff --git a/pv/view/viewitem.hpp b/pv/view/viewitem.hpp
index 4c3df15..ee77c4a 100644
--- a/pv/view/viewitem.hpp
+++ b/pv/view/viewitem.hpp
@@ -18,8 +18,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#ifndef PULSEVIEW_PV_VIEWITEM_H
-#define PULSEVIEW_PV_VIEWITEM_H
+#ifndef PULSEVIEW_PV_VIEWITEM_HPP
+#define PULSEVIEW_PV_VIEWITEM_HPP
 
 #include <list>
 
@@ -43,7 +43,8 @@ class ViewItem : public QObject
 {
 	Q_OBJECT
 
-private:
+public:
+	static const QSizeF LabelPadding;
 	static const int HighlightRadius;
 
 public:
@@ -70,11 +71,6 @@ public:
 	 */
 	bool dragging() const;
 
-	/**
-	 * Retunrns the current drag point.
-	 */
-	QPoint drag_point() const;
-
 	/**
 	 * Sets this item into the dragged state.
 	 */
@@ -85,10 +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.
@@ -97,6 +100,22 @@ 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.
+	 * @param rect the rectangle of the header area.
+	 * @param hover true if the label is being hovered over by the mouse.
+	 */
+	virtual void paint_label(QPainter &p, const QRect &rect, bool hover) = 0;
+
 	/**
 	 * Paints the background layer of the item with a QPainter
 	 * @param p the QPainter to paint into.
@@ -139,13 +158,13 @@ protected:
 
 protected:
 	QWidget *context_parent_;
+	QPoint drag_point_;
 
 private:
 	bool selected_;
-	QPoint drag_point_;
 };
 
 } // namespace view
 } // namespace pv
 
-#endif // PULSEVIEW_PV_VIEWITEM_H
+#endif // PULSEVIEW_PV_VIEWITEM_HPP