From 6046c19df08472d69aa06216136ea7fafaf25492 Mon Sep 17 00:00:00 2001
From: Joel Holdsworth <joel@airwebreathe.org.uk>
Date: Sat, 13 Jun 2015 10:46:39 +0100
Subject: [PATCH] RowItemOwner: Added list_by_type

---
 pv/view/rowitemowner.cpp | 17 +++++++++++++++++
 pv/view/rowitemowner.hpp |  6 ++++++
 2 files changed, 23 insertions(+)

diff --git a/pv/view/rowitemowner.cpp b/pv/view/rowitemowner.cpp
index ba2e1f48..49e6e1a5 100644
--- a/pv/view/rowitemowner.cpp
+++ b/pv/view/rowitemowner.cpp
@@ -22,7 +22,9 @@
 
 #include "rowitem.hpp"
 #include "rowitemowner.hpp"
+#include "trace.hpp"
 
+using std::dynamic_pointer_cast;
 using std::max;
 using std::make_pair;
 using std::min;
@@ -101,6 +103,21 @@ set< RowItemOwner* > RowItemOwner::list_row_item_owners()
 	return owners;
 }
 
+template<class T>
+set< shared_ptr<T> > RowItemOwner::list_by_type()
+{
+	set< shared_ptr<T> > items;
+	for (const auto &r : *this) {
+		shared_ptr<T> p = dynamic_pointer_cast<T>(r);
+		if (p)
+			items.insert(p);
+	}
+
+	return items;
+}
+
+template set< shared_ptr<Trace> > RowItemOwner::list_by_type();
+
 pair<int, int> RowItemOwner::v_extents() const
 {
 	pair<int, int> extents(INT_MAX, INT_MIN);
diff --git a/pv/view/rowitemowner.hpp b/pv/view/rowitemowner.hpp
index d72dddb2..f64b2592 100644
--- a/pv/view/rowitemowner.hpp
+++ b/pv/view/rowitemowner.hpp
@@ -124,6 +124,12 @@ public:
 	 */
 	std::set< RowItemOwner* > list_row_item_owners();
 
+	/**
+	 * Creates a list of decendant signals filtered by type.
+	 */
+	template<class T>
+	std::set< std::shared_ptr<T> > list_by_type();
+
 	/**
 	 * Computes the vertical extents of the contents of this row item owner.
 	 * @return A pair containing the minimum and maximum y-values.
-- 
2.30.2