X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=sigview.cpp;h=cf0983d90ba2b0cefbb798f1edcc9dda697f4f39;hp=53fbdeaac148859251c7792ab726c40d6d174c4c;hb=3e46726aaf1cfe749c8f3fced7b455cf01a03c86;hpb=3b18c57d8f224791481e0b768065bd4d11a3d79e

diff --git a/sigview.cpp b/sigview.cpp
index 53fbdeaa..cf0983d9 100644
--- a/sigview.cpp
+++ b/sigview.cpp
@@ -23,58 +23,90 @@
 #include "sigsession.h"
 #include "signal.h"
 
+#include <QMouseEvent>
+
 #include <boost/foreach.hpp>
 
 using namespace boost;
 using namespace std;
 
 const int SigView::SignalHeight = 50;
+const int SigView::LabelMarginWidth = 70;
 
 SigView::SigView(SigSession &session, QWidget *parent) :
 	QGLWidget(parent),
         _session(session),
-	_scale(1000000000ULL),
+	_scale(1e-6),
 	_offset(0)
 {
 	connect(&_session, SIGNAL(dataUpdated()),
 		this, SLOT(dataUpdated()));
 
 	setMouseTracking(true);
+	setAutoFillBackground(false);
 }
 
 void SigView::initializeGL()
 {
-	glDisable(GL_TEXTURE_2D);
-	glDisable(GL_DEPTH_TEST);
-	glDisable(GL_COLOR_MATERIAL);
-	glEnable(GL_BLEND);
-	glEnable(GL_POLYGON_SMOOTH);
-	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-	glClearColor(1.0, 1.0, 1.0, 0);
 }
 
 void SigView::resizeGL(int width, int height)
 {
-	glViewport(0, 0, (GLint)width, (GLint)height);
-	glMatrixMode(GL_PROJECTION);
-	glLoadIdentity();
-	glOrtho(0, width, height, 0, -1, 1);
-	glMatrixMode(GL_MODELVIEW);
+	setupViewport(width, height);
 }
 
-void SigView::paintGL()
+void SigView::paintEvent(QPaintEvent *event)
 {
-	glClear(GL_COLOR_BUFFER_BIT);
+	int offset;
 
-	QRect rect(0, 0, width(), SignalHeight);
 	const vector< shared_ptr<Signal> > &sigs =
 		_session.get_signals();
+
+	// Prepare for OpenGL rendering
+	makeCurrent();
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+
+	setupViewport(width(), height());
+
+	qglClearColor(Qt::white);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	// Plot the signal
+	offset = 0;
 	BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
 	{
 		assert(s);
-		s->paint(*this, rect, _scale, _offset);
-		rect.translate(0, SignalHeight);
+
+		const QRect signal_rect(LabelMarginWidth, offset,
+			width() - LabelMarginWidth, SignalHeight);
+
+		s->paint(*this, signal_rect, _scale, _offset);
+
+		offset += SignalHeight;
+	}
+
+	// Prepare for QPainter rendering
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+
+	QPainter painter(this);
+	painter.setRenderHint(QPainter::Antialiasing);
+
+	// Paint the label
+	offset = 0;
+	BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+	{
+		assert(s);
+
+		const QRect label_rect(0, offset,
+			LabelMarginWidth, SignalHeight);
+		s->paint_label(painter, label_rect);
+
+		offset += SignalHeight;
 	}
+
+	painter.end();
 }
 
 void SigView::dataUpdated()
@@ -82,3 +114,43 @@ 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();
+
+	update();
+}
+
+void SigView::setupViewport(int width, int height)
+{
+	glViewport(0, 0, (GLint)width, (GLint)height);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	glOrtho(0, width, height, 0, -1, 1);
+	glMatrixMode(GL_MODELVIEW);
+}