Mutex protected SigSession::_signals

[pulseview.git] / pv / view / viewport.cpp

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 96111875570ee7e53bf0e9773285686acb01e8a8..03b07fdf13351d3ceab1e8720af701f503046335 100644 (file)
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -49,8 +49,9 @@ Viewport::Viewport(View &parent) :
 int Viewport::get_total_height() const
 {
        int h = 0;
-       BOOST_FOREACH(const shared_ptr<Signal> s,
-               _view.session().get_signals()) {
+       const vector< shared_ptr<Signal> > sigs(
+               _view.session().get_signals());
+       BOOST_FOREACH(const shared_ptr<Signal> s, sigs) {
                assert(s);
                h = max(s->get_v_offset() + View::SignalHeight, h);
        }
@@ -60,8 +61,8 @@ int Viewport::get_total_height() const
 
 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);