- /**
- * Selects or deselects the signal.
- */
- void select(bool select = true);
-
- /**
- * Paints the signal with a QPainter
- * @param p the QPainter to paint into.
- * @param rect the rectangular area to draw the trace into.
- * @param scale the scale in seconds per pixel.
- * @param offset the time to show at the left hand edge of
- * the view in seconds.
- **/
- 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,
- bool hover);
-
- /**
- * 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);