X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Fviewwidget.cpp;h=d5b949c0dabcf89e196dadeeb35bf37a230c2cf2;hp=c3461614ab637db740659666482d6b12ee24445c;hb=f4ab4b5c657e5613caba82feaa81a8a400e4f331;hpb=46ebcd3f6f85092a9eb6401f6f56cee8fa08131a

diff --git a/pv/views/trace/viewwidget.cpp b/pv/views/trace/viewwidget.cpp
index c346161..d5b949c 100644
--- a/pv/views/trace/viewwidget.cpp
+++ b/pv/views/trace/viewwidget.cpp
@@ -77,7 +77,7 @@ bool ViewWidget::accept_drag() const
 	if (any_row_items_selected && !any_time_items_selected) {
 		// Check all the drag items share a common owner
 		TraceTreeItemOwner *item_owner = nullptr;
-		for (shared_ptr<TraceTreeItem> r : trace_tree_items)
+		for (const shared_ptr<TraceTreeItem>& r : trace_tree_items)
 			if (r->dragging()) {
 				if (!item_owner)
 					item_owner = r->owner();
@@ -107,7 +107,7 @@ void ViewWidget::drag_items(const QPoint &delta)
 	// Drag the row items
 	const vector< shared_ptr<RowItem> > row_items(
 		view_.list_by_type<RowItem>());
-	for (shared_ptr<RowItem> r : row_items)
+	for (const shared_ptr<RowItem>& r : row_items)
 		if (r->dragging()) {
 			r->drag_by(delta);
 
@@ -121,7 +121,7 @@ void ViewWidget::drag_items(const QPoint &delta)
 	TraceTreeItemOwner *item_owner = nullptr;
 	const vector< shared_ptr<TraceTreeItem> > trace_tree_items(
 		view_.list_by_type<TraceTreeItem>());
-	for (shared_ptr<TraceTreeItem> i : trace_tree_items)
+	for (const shared_ptr<TraceTreeItem>& i : trace_tree_items)
 		if (i->dragging())
 			item_owner = i->owner();