X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fsignal.h;h=b4c4244ca3fc438f7a71441bfc0a7de80fec0674;hp=2351a2f911256c0a591c953a6d7d9d63e1421848;hb=ed6f0f4f84a26aadacfd4d3a745a8d7f1094efc5;hpb=51e77110d4316fd0106f8306f5e1f0523c5bf7d7

diff --git a/pv/signal.h b/pv/signal.h
index 2351a2f9..b4c4244c 100644
--- a/pv/signal.h
+++ b/pv/signal.h
@@ -34,6 +34,7 @@ class Signal
 {
 private:
 	static const QSizeF LabelPadding;
+	static const int LabelHitPadding;
 
 protected:
 	Signal(QString name);
@@ -52,15 +53,39 @@ public:
 	virtual void paint(QPainter &p, const QRect &rect, double scale,
 		double offset) = 0;
 
+
 	/**
 	 * Paints the signal label into a QGLWidget.
 	 * @param p the QPainter to paint into.
 	 * @param rect the rectangular area to draw the label into.
+	 * @param hover true if the label is being hovered over by the mouse.
 	 */
-	virtual void paint_label(QPainter &p, const QRect &rect);
+	virtual void paint_label(QPainter &p, const QRect &rect,
+		bool hover);
 
-protected:
+	/**
+	 * Determines if a point is in the header label rect.
+	 * @param rect the rectangular area to draw the label into.
+	 * @param point the point to test.
+	 */
+	bool pt_in_label_rect(const QRect &rect, const QPoint &point);
+
+private:
 
+	/**
+	 * Computes an caches the size of the label text.
+	 */
+	void compute_text_size(QPainter &p);
+
+	/**
+	 * Computes the outline rectangle of a label.
+	 * @param p the QPainter to lay out text with.
+	 * @param rect The rectangle of the signal header.
+	 * @return Returns the rectangle of the signal label.
+	 */
+	QRectF get_label_rect(const QRect &rect);
+
+protected:
 	/**
 	 * Get the colour of the logic signal
 	 */
@@ -74,6 +99,7 @@ protected:
 
 protected:
 	QString _name;
+	QSizeF _text_size;
 };
 
 } // namespace pv