X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=sigview.h;h=3630d17e572cfe074a893d7463370d0af4148a3e;hb=f0fa92c6c431e15f2012003bd35e6e474d7fca8f;hp=c4ddc15b527cbd294b1d6d0f413f5cabd684e521;hpb=fb0d32cb540e2ae39d80f7eab02779fb965d9f46;p=pulseview.git

diff --git a/sigview.h b/sigview.h
index c4ddc15..3630d17 100644
--- a/sigview.h
+++ b/sigview.h
@@ -24,6 +24,8 @@
 #include <QtOpenGL/QGLWidget>
 #include <QTimer>
 
+class QPainter;
+class QPaintEvent;
 class SigSession;
 
 class SigView : public QGLWidget
@@ -31,32 +33,56 @@ class SigView : public QGLWidget
 	Q_OBJECT
 
 private:
+	static const double MaxScale;
+	static const double MinScale;
+
 	static const int SignalHeight;
+	static const int LabelMarginWidth;
+	static const int RulerHeight;
+
+	static const int MinorTickSubdivision;
+	static const int ScaleUnits[3];
+
+	static const QString SIPrefixes[9];
+	static const int FirstSIPrefixPower;
 
 public:
 	explicit SigView(SigSession &session, QWidget *parent = 0);
 
+	void zoom(double steps);
+
 protected:
 
 	void initializeGL();
 
 	void resizeGL(int width, int height);
 
-	void paintGL();
+	void paintEvent(QPaintEvent *event);
 
 private:
-	void mouseMoveEvent(QMouseEvent *event);
 	void mousePressEvent(QMouseEvent *event);
+	void mouseMoveEvent(QMouseEvent *event);
 	void mouseReleaseEvent(QMouseEvent *event);
+	void wheelEvent(QWheelEvent *event);
+
+private:
+	void setup_viewport(int width, int height);
+
+	void paint_ruler(QPainter &p);
+
+	void zoom(double steps, int offset);
 
 private slots:
-	void dataUpdated();
+	void data_updated();
 
 private:
 	SigSession &_session;
 
 	double _scale;
 	double _offset;
+
+	QPoint _mouse_down_point;
+	double _mouse_down_offset;
 };
 
 #endif // SIGVIEW_H