Sampling bar now commits the sample rate into the device instance

[pulseview.git] / pv / view / signal.h

diff --git a/pv/view/signal.h b/pv/view/signal.h
index 6f08e947c61a36958a8efbf5a0a380739576373d..250d3ff36bf04c90ba542629e062f3aba8d99cd2 100644 (file)
--- a/pv/view/signal.h
+++ b/pv/view/signal.h
@@ -25,6 +25,7 @@
 
 #include <QColor>
 #include <QPainter>
+#include <QPen>
 #include <QRect>
 #include <QString>
 
@@ -32,7 +33,9 @@
 
 namespace pv {
 
+namespace data {
 class SignalData;
+}
 
 namespace view {
 
@@ -40,6 +43,9 @@ class Signal
 {
 private:
        static const int LabelHitPadding;
+       static const int LabelHighlightRadius;
+
+       static const QPen SignalAxisPen;
 
 protected:
        Signal(QString name);
@@ -65,33 +71,72 @@ public:
         */
        void set_colour(QColor colour);
 
+       /**
+        * Gets the vertical layout offset of this signal.
+        */
+       int get_v_offset() const;
+
+       /**
+        * Sets the vertical layout offset of this signal.
+        */
+       void set_v_offset(int v_offset);
+
+       /**
+        * Returns true if the signal has been selected by the user.
+        */
+       bool selected() const;
+
+       /**
+        * 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 y the y-coordinate to draw the signal at
+        * @param left the x-coordinate of the left edge of the signal
+        * @param right the x-coordinate of the right edge of the signal
         * @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;
-
+       virtual void paint(QPainter &p, int y, int left, int right,
+               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 y the y-coordinate of the signal.
+        * @param right the x-coordinate of the right edge of the header
+        *      area.
         * @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, int y, int right,
                bool hover);
 
        /**
         * Determines if a point is in the header label rect.
-        * @param rect the rectangular area to draw the label into.
+        * @param y the y-coordinate of the signal.
+        * @param left the x-coordinate of the left edge of the header
+        *      area.
+        * @param right the x-coordinate of the right edge of the header
+        *      area.
         * @param point the point to test.
         */
-       bool pt_in_label_rect(const QRect &rect, const QPoint &point);
+       bool pt_in_label_rect(int y, int left, int right,
+               const QPoint &point);
+
+protected:
+
+       /**
+        * Paints a zero axis across the viewport.
+        * @param p the QPainter to paint into.
+        * @param y the y-offset of the axis.
+        * @param left the x-coordinate of the left edge of the view.
+        * @param right the x-coordinate of the right edge of the view.
+        */
+       void paint_axis(QPainter &p, int y, int left, int right);
 
 private:
 
@@ -103,21 +148,19 @@ private:
        /**
         * Computes the outline rectangle of a label.
         * @param p the QPainter to lay out text with.
-        * @param rect The rectangle of the signal header.
+        * @param y the y-coordinate of the signal.
+        * @param right the x-coordinate of the right edge of the header
+        *      area.
         * @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.
-        **/
-       virtual int get_nominal_offset(const QRect &rect) const = 0;
+       QRectF get_label_rect(int y, int right);
 
 protected:
        QString _name;
        QColor _colour;
+       int _v_offset;
+
+       bool _selected;
 
        QSizeF _text_size;
 };