X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Frowitemowner.cpp;h=0fa230ab4e3fb47a609c105cb1de0dc91ad4d277;hp=8633525eb4cd9fb2976ea4f3a97a36df7f7163e8;hb=a5d93c27b5bd6b95000e29c6cddac56ab254b289;hpb=dc747705ac06c9e9ab582b6b8b7cfc31003128e0

diff --git a/pv/view/rowitemowner.cpp b/pv/view/rowitemowner.cpp
index 8633525e..0fa230ab 100644
--- a/pv/view/rowitemowner.cpp
+++ b/pv/view/rowitemowner.cpp
@@ -23,6 +23,10 @@
 #include "rowitem.h"
 #include "rowitemowner.h"
 
+using std::max;
+using std::make_pair;
+using std::min;
+using std::pair;
 using std::shared_ptr;
 using std::vector;
 
@@ -84,5 +88,24 @@ RowItemOwner::const_iterator RowItemOwner::end() const
 	return const_iterator(this);
 }
 
+pair<int, int> RowItemOwner::v_extents() const
+{
+	pair<int, int> extents(0, 0);
+	for (const shared_ptr<RowItem> r : child_items()) {
+		assert(r);
+		if (!r->enabled())
+			continue;
+
+		const int child_offset = r->v_offset();
+		const pair<int, int> child_extents = r->v_extents();
+		extents.first = min(child_extents.first + child_offset,
+			extents.first);
+		extents.second = max(child_extents.second + child_offset,
+			extents.second);
+	}
+
+	return extents;
+}
+
 } // view
 } // pv