X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fviewport.cpp;h=03b07fdf13351d3ceab1e8720af701f503046335;hb=30fcfd9f5b348da5123f0a25c943e40209be95b1;hp=7d844d27bccadd71a287f5aeb784f9d5f1ad5f85;hpb=2e57535108a0ae2e5d1ee454f1e61b71d23afdb3;p=pulseview.git

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 7d844d2..03b07fd 100644
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -41,24 +41,28 @@ Viewport::Viewport(View &parent) :
 	setMouseTracking(true);
 	setAutoFillBackground(true);
 	setBackgroundRole(QPalette::Base);
+
+	connect(&_view, SIGNAL(signals_moved()),
+		this, SLOT(on_signals_moved()));
 }
 
 int Viewport::get_total_height() const
 {
-	int height = 0;
-	BOOST_FOREACH(const shared_ptr<Signal> s,
-		_view.session().get_signals()) {
+	int h = 0;
+	const vector< shared_ptr<Signal> > sigs(
+		_view.session().get_signals());
+	BOOST_FOREACH(const shared_ptr<Signal> s, sigs) {
 		assert(s);
-		height += View::SignalHeight;
+		h = max(s->get_v_offset() + View::SignalHeight, h);
 	}
 
-	return height;
+	return h;
 }
 
 void Viewport::paintEvent(QPaintEvent *event)
 {
-	const vector< shared_ptr<Signal> > &sigs =
-		_view.session().get_signals();
+	const vector< shared_ptr<Signal> > sigs(
+		_view.session().get_signals());
 
 	QPainter p(this);
 	p.setRenderHint(QPainter::Antialiasing);
@@ -142,5 +146,10 @@ void Viewport::draw_cursors_foreground(QPainter &p)
 	cursors.second.paint(p, r);
 }
 
+void Viewport::on_signals_moved()
+{
+	update();
+}
+
 } // namespace view
 } // namespace pv