RowItem: Replaced fixed signal heights with extents

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

diff --git a/pv/view/rowitemowner.cpp b/pv/view/rowitemowner.cpp
index 8633525eb4cd9fb2976ea4f3a97a36df7f7163e8..0fa230ab4e3fb47a609c105cb1de0dc91ad4d277 100644 (file)
--- 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