* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef PULSEVIEW_PV_SIGNAL_H
+#define PULSEVIEW_PV_SIGNAL_H
+
#include <boost/shared_ptr.hpp>
#include <QPainter>
{
private:
static const QSizeF LabelPadding;
+ static const int LabelHitPadding;
protected:
Signal(QString name);
public:
+ /**
+ * Gets the name of this signal.
+ */
QString get_name() const;
+ /**
+ * Sets the name of the signal.
+ */
+ void set_name(QString name);
+
/**
* Paints the signal with a QPainter
* @param p the QPainter to paint into.
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.
*/
- virtual QRectF get_label_rect(QPainter &p, const QRect &rect);
-
- /**
- * Paints the signal label into a QGLWidget.
- * @param p the QPainter to paint into.
- * @param rect the rectangular area to draw the label into.
- */
- virtual void paint_label(QPainter &p, const QRect &rect);
+ QRectF get_label_rect(const QRect &rect);
protected:
-
/**
* Get the colour of the logic signal
*/
protected:
QString _name;
+ QSizeF _text_size;
};
} // namespace pv
+
+#endif // PULSEVIEW_PV_SIGNAL_H