X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;h=508b91c5c385ff7e34fae595105396ba94bc4d66;hp=b4815e704ac6b002f21fc0eb42aa6850e33619cf;hb=f9abdc014adda6771828db4c8caa8f66e066b7a3;hpb=38eeddeab105aea3f8015dda5399ebbead21550a

diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index b4815e70..508b91c5 100644
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -145,16 +145,12 @@ void View::zoom(double steps)
 void View::zoom(double steps, int offset)
 {
 	const double cursor_offset = _offset + _scale * offset;
-	_scale *= pow(3.0/2.0, -steps);
-	_scale = max(min(_scale, MaxScale), MinScale);
-	_offset = cursor_offset - _scale * offset;
-
-	_ruler->update();
-	_viewport->update();
-	update_scroll();
+	const double new_scale = max(min(_scale * pow(3.0/2.0, -steps),
+		MaxScale), MinScale);
+	const double new_offset = cursor_offset - new_scale * offset;
+	set_scale_offset(new_scale, new_offset);
 }
 
-
 void View::set_scale_offset(double scale, double offset)
 {
 	_scale = scale;
@@ -163,6 +159,7 @@ void View::set_scale_offset(double scale, double offset)
 	update_scroll();
 	_ruler->update();
 	_viewport->update();
+	scale_offset_changed();
 }
 
 vector< shared_ptr<Trace> > View::get_traces() const
@@ -255,6 +252,12 @@ void View::normalize_layout()
 	v_scroll_value_changed(verticalScrollBar()->sliderPosition());
 }
 
+void View::update_viewport()
+{
+	assert(_viewport);
+	_viewport->update();
+}
+
 void View::get_scroll_layout(double &length, double &offset) const
 {
 	const shared_ptr<data::SignalData> sig_data = _session.get_data();
@@ -384,10 +387,11 @@ void View::v_scroll_value_changed(int value)
 void View::signals_changed()
 {
 	int offset = SignalMargin + SignalHeight;
-	const vector< shared_ptr<Signal> > sigs(_session.get_signals());
-	BOOST_FOREACH(shared_ptr<Signal> s, sigs) {
-		s->init_context_bar_actions(NULL);
-		s->set_v_offset(offset);
+	const vector< shared_ptr<Trace> > traces(get_traces());
+	BOOST_FOREACH(shared_ptr<Trace> t, traces) {
+		t->set_view(this);
+		t->init_context_bar_actions(NULL);
+		t->set_v_offset(offset);
 		offset += SignalHeight + 2 * SignalMargin;
 	}