Initial interractive zoom support
[pulseview.git] / sigview.cpp
index ac7e76c8fe5185bd7fcd33bd75b7957ecb70e086..df1eefec2745fec15041766a4777d086d6e114eb 100644 (file)
 
 #include "sigview.h"
 
-SigView::SigView(QWidget *parent) :
-       QAbstractScrollArea(parent)
+#include "sigsession.h"
+#include "signal.h"
+
+#include <QMouseEvent>
+
+#include <boost/foreach.hpp>
+
+using namespace boost;
+using namespace std;
+
+const int SigView::SignalHeight = 50;
+
+SigView::SigView(SigSession &session, QWidget *parent) :
+       QGLWidget(parent),
+        _session(session),
+       _scale(1000000000ULL),
+       _offset(0)
+{
+       connect(&_session, SIGNAL(dataUpdated()),
+               this, SLOT(dataUpdated()));
+
+       setMouseTracking(true);
+}
+
+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);
+}
+
+void SigView::paintGL()
+{
+       glClear(GL_COLOR_BUFFER_BIT);
+
+       QRect rect(0, 0, width(), SignalHeight);
+       const vector< shared_ptr<Signal> > &sigs =
+               _session.get_signals();
+       BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+       {
+               assert(s);
+               s->paint(*this, rect, _scale, _offset);
+               rect.translate(0, SignalHeight);
+       }
+}
+
+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);
+
+       switch(event->button())
+       {
+       case Qt::LeftButton:
+               _scale = (_scale * 2) / 3;
+               break;
+
+       case Qt::RightButton:
+               _scale = (_scale * 3) / 2;
+               break;
+       }
+
+       updateGL();
 }
+