View: Keep a list of owned traces in RowItemOwner

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

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index c987c3683164e598d9c1f94e8b0a88560ad33920..43da472890120e4eb01acfb59fdd14db0d716cc0 100644 (file)
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -20,6 +20,7 @@
 
 #include <cassert>
 #include <cmath>
+#include <algorithm>
 
 #include "view.h"
 #include "viewport.h"
@@ -33,6 +34,7 @@ using std::abs;
 using std::max;
 using std::min;
 using std::shared_ptr;
+using std::stable_sort;
 using std::vector;
 
 namespace pv {
@@ -75,7 +77,10 @@ int Viewport::get_total_height() const
 
 void Viewport::paintEvent(QPaintEvent*)
 {
-       const vector< shared_ptr<RowItem> > row_items(_view.child_items());
+       vector< shared_ptr<RowItem> > row_items(_view.child_items());
+       stable_sort(row_items.begin(), row_items.end(),
+               [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
+                       return a->v_offset() < b->v_offset(); });
 
        QPainter p(this);
        p.setRenderHint(QPainter::Antialiasing);