X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=sigview.cpp;h=4097ae5c25fe1f316b4cd9359dbe44b79bd8a8cf;hb=131e801229c3cc899dd8a478d4491e384e57238e;hp=53fbdeaac148859251c7792ab726c40d6d174c4c;hpb=3b18c57d8f224791481e0b768065bd4d11a3d79e;p=pulseview.git

diff --git a/sigview.cpp b/sigview.cpp
index 53fbdea..4097ae5 100644
--- a/sigview.cpp
+++ b/sigview.cpp
@@ -23,6 +23,8 @@
 #include "sigsession.h"
 #include "signal.h"
 
+#include <QMouseEvent>
+
 #include <boost/foreach.hpp>
 
 using namespace boost;
@@ -33,7 +35,7 @@ const int SigView::SignalHeight = 50;
 SigView::SigView(SigSession &session, QWidget *parent) :
 	QGLWidget(parent),
         _session(session),
-	_scale(1000000000ULL),
+	_scale(1e-6),
 	_offset(0)
 {
 	connect(&_session, SIGNAL(dataUpdated()),
@@ -82,3 +84,35 @@ void SigView::dataUpdated()
 	update();
 }
 
+void SigView::mouseMoveEvent(QMouseEvent *event)
+{
+	assert(event);
+}
+
+void SigView::mousePressEvent(QMouseEvent *event)
+{
+	assert(event);
+}
+
+void SigView::mouseReleaseEvent(QMouseEvent *event)
+{
+	assert(event);
+
+	const double cursor_offset = _offset + _scale * (double)event->x();
+
+	switch(event->button())
+	{
+	case Qt::LeftButton:
+		_scale *= 2.0 / 3.0;
+		break;
+
+	case Qt::RightButton:
+		_scale *= 3.0 / 2.0;
+		break;
+	}
+
+	_offset = cursor_offset - _scale * (double)event->x();
+
+	updateGL();
+}
+