X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fruler.hpp;h=6559f6f09cd770d2c0060a2eb1273ea4112a6d39;hb=2f7982367e8382e05c862de7afc71075ded5f606;hp=073c86c9e600533f66ae3389f99a7e29660ee8ec;hpb=361c560ed9ef67278916e086ed0b0649ae01b583;p=pulseview.git

diff --git a/pv/view/ruler.hpp b/pv/view/ruler.hpp
index 073c86c..6559f6f 100644
--- a/pv/view/ruler.hpp
+++ b/pv/view/ruler.hpp
@@ -28,15 +28,22 @@
 namespace pv {
 namespace view {
 
+class TimeItem;
+class ViewItem;
+
 class Ruler : public MarginWidget
 {
 	Q_OBJECT
 
 private:
-	static const int RulerHeight;
+
+	/// Height of the ruler in multipes of the text height
+	static const float RulerHeight;
+
 	static const int MinorTickSubdivision;
 
-	static const int HoverArrowSize;
+	/// Height of the hover arrow in multiples of the text height
+	static const float HoverArrowSize;
 
 public:
 	Ruler(View &parent);
@@ -44,14 +51,54 @@ public:
 public:
 	QSize sizeHint() const;
 
+	/**
+	 * The extended area that the header widget would like to be sized to.
+	 * @remarks This area is the area specified by sizeHint, extended by
+	 * the area to overlap the viewport.
+	 */
+	QSize extended_size_hint() const;
+
+private:
+	/**
+	 * Gets the time items.
+	 */
+	std::vector< std::shared_ptr<pv::view::ViewItem> > items();
+
+	/**
+	 * Gets the first view item which has a label that contains @c pt .
+	 * @param pt the point to search with.
+	 * @return the view item that has been found, or and empty
+	 *   @c shared_ptr if no item was found.
+	 */
+	std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
+		const QPoint &pt);
+
+	/**
+	 * Returns true if the selection of time items allows dragging.
+	 * @return Returns true if the drag is acceptable.
+	 */
+	bool accept_drag() const;
+
+	/**
+	 * Drag the dragging items by the delta offset.
+	 * @param delta the drag offset in pixels.
+	 */
+	void drag_items(const QPoint &delta);
+
 private:
 	void paintEvent(QPaintEvent *event);
 
+	void mouseDoubleClickEvent(QMouseEvent *e);
+
 private:
 	/**
 	 * Draw a hover arrow under the cursor position.
+	 * @param p The painter to draw into.
+	 * @param text_height The height of a single text ascent.
 	 */
-	void draw_hover_mark(QPainter &p);
+	void draw_hover_mark(QPainter &p, int text_height);
+
+	int calculate_text_height() const;
 
 private Q_SLOTS:
 	void hover_point_changed();