X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fheader.cpp;h=be4cebcb26f40b4e23ffe337ebe211a1c745da97;hp=60d64b2f401f2483aad1226dc00e66d62ca54191;hb=698568bc567743a833a6a20489566c9b2b213190;hpb=364d2155b342d3ef8f5f2c22be54bb35d0882b76

diff --git a/pv/view/header.cpp b/pv/view/header.cpp
index 60d64b2f..be4cebcb 100644
--- a/pv/view/header.cpp
+++ b/pv/view/header.cpp
@@ -198,15 +198,14 @@ void Header::on_ungroup()
 	bool restart;
 	do {
 		restart = false;
-		for (const shared_ptr<TraceTreeItem> r : view_) {
-			const shared_ptr<TraceGroup> tg =
-				dynamic_pointer_cast<TraceGroup>(r);
-			if (tg && tg->selected()) {
+		const vector< shared_ptr<TraceGroup> > groups(
+			view_.list_by_type<TraceGroup>());
+		for (const shared_ptr<TraceGroup> tg : groups)
+			if (tg->selected()) {
 				tg->ungroup();
 				restart = true;
 				break;
 			}
-		}
 	} while (restart);
 }