X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=sigview.h;h=3630d17e572cfe074a893d7463370d0af4148a3e;hp=b60ee44b1d4a10aff320e30f0c4ef57673290e6d;hb=a8d3fb2df629023bb80b60cefb35c90b859206f8;hpb=22016ad3e5b44f05d50fb6ff518b6c884dd185cf

diff --git a/sigview.h b/sigview.h
index b60ee44b..3630d17e 100644
--- a/sigview.h
+++ b/sigview.h
@@ -33,10 +33,14 @@ 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];
@@ -45,6 +49,8 @@ private:
 public:
 	explicit SigView(SigSession &session, QWidget *parent = 0);
 
+	void zoom(double steps);
+
 protected:
 
 	void initializeGL();
@@ -54,23 +60,29 @@ protected:
 	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 setupViewport(int width, int height);
+	void setup_viewport(int width, int height);
+
+	void paint_ruler(QPainter &p);
 
-	void paintRuler(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