Added a label colour chooser dialog

[pulseview.git] / pv / signal.h

diff --git a/pv/signal.h b/pv/signal.h
index 2351a2f911256c0a591c953a6d7d9d63e1421848..2afe9528dfe8cceac605d38c6600977f7381b61c 100644 (file)
--- a/pv/signal.h
+++ b/pv/signal.h
@@ -18,8 +18,12 @@
  * 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 <QColor>
 #include <QPainter>
 #include <QRect>
 #include <QString>
@@ -33,14 +37,32 @@ class SignalData;
 class Signal
 {
 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);
+
+       /**
+        * Get the colour of the signal.
+        */
+       QColor get_colour() const;
+
+       /**
+        * Set the colour of the signal.
+        */
+       void set_colour(QColor colour);
+
        /**
         * Paints the signal with a QPainter
         * @param p the QPainter to paint into.
@@ -52,20 +74,39 @@ 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:
 
        /**
-        * Get the colour of the logic signal
+        * Computes an caches the size of the label text.
         */
-       virtual QColor get_colour() const = 0;
+       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:
        /**
         * When painting into the rectangle, calculate the y
         * offset of the zero point.
@@ -74,6 +115,11 @@ protected:
 
 protected:
        QString _name;
+       QColor _colour;
+
+       QSizeF _text_size;
 };
 
 } // namespace pv
+
+#endif // PULSEVIEW_PV_SIGNAL_H