Implemented O(log(N)) wave plotting

[pulseview.git] / signal.h

diff --git a/signal.h b/signal.h
index ac23a3fa214a81255855934d13cb2f64430e9b07..edab476deb7d31c22f0b16929c2221e82e05cb1a 100644 (file)
--- a/signal.h
+++ b/signal.h
@@ -21,6 +21,7 @@
 #include <boost/shared_ptr.hpp>
 
 #include <QGLWidget>
+#include <QPainter>
 #include <QRect>
 #include <QString>
 
@@ -30,6 +31,9 @@ class SignalData;
 
 class Signal
 {
+private:
+       static const QSizeF LabelPadding;
+
 protected:
        Signal(QString name);
 
@@ -47,6 +51,26 @@ public:
        virtual void paint(QGLWidget &widget, 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.
+        */
+       virtual void paint_label(QPainter &p, const QRect &rect);
+
+protected:
+
+       /**
+        * Get the colour of the logic signal
+        */
+       virtual QColor get_colour() const = 0;
+
+       /**
+        * When painting into the rectangle, calculate the y
+        * offset of the zero point.
+        **/
+       virtual int get_nominal_offset(const QRect &rect) const = 0;
+
 protected:
        QString _name;
 };