From 4b5782e1c7b6fec1f9c4ff2ba6f282cadecd70cd Mon Sep 17 00:00:00 2001
From: Joel Holdsworth <joel@airwebreathe.org.uk>
Date: Sun, 30 Aug 2015 09:02:28 -0600
Subject: [PATCH] Signal: Derive from ViewItemOwner

---
 pv/view/signal.cpp |  6 ++++++
 pv/view/signal.hpp | 10 +++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/pv/view/signal.cpp b/pv/view/signal.cpp
index 08fa54ee..57d78834 100644
--- a/pv/view/signal.cpp
+++ b/pv/view/signal.cpp
@@ -63,6 +63,7 @@ Signal::Signal(pv::Session &session,
 	Trace(QString::fromUtf8(channel->name().c_str())),
 	session_(session),
 	channel_(channel),
+	items_(),
 	name_widget_(nullptr),
 	updating_name_widget_(false)
 {
@@ -99,6 +100,11 @@ shared_ptr<Channel> Signal::channel() const
 	return channel_;
 }
 
+const ViewItemOwner::item_list& Signal::child_items() const
+{
+	return items_;
+}
+
 void Signal::populate_popup_form(QWidget *parent, QFormLayout *form)
 {
 	name_widget_ = new QComboBox(parent);
diff --git a/pv/view/signal.hpp b/pv/view/signal.hpp
index 8208a762..d96a85cf 100644
--- a/pv/view/signal.hpp
+++ b/pv/view/signal.hpp
@@ -29,6 +29,7 @@
 #include <stdint.h>
 
 #include "trace.hpp"
+#include "viewitemowner.hpp"
 
 namespace sigrok {
 	class Channel;
@@ -44,7 +45,7 @@ class SignalData;
 
 namespace view {
 
-class Signal : public Trace
+class Signal : public Trace, public ViewItemOwner
 {
 	Q_OBJECT
 
@@ -69,6 +70,11 @@ public:
 
 	std::shared_ptr<sigrok::Channel> channel() const;
 
+	/**
+	 * Returns a list of row items owned by this object.
+	 */
+	const item_list& child_items() const;
+
 	virtual void populate_popup_form(QWidget *parent, QFormLayout *form);
 
 	QMenu* create_context_menu(QWidget *parent);
@@ -82,6 +88,8 @@ protected:
 	pv::Session &session_;
 	std::shared_ptr<sigrok::Channel> channel_;
 
+	const item_list items_;
+
 	QComboBox *name_widget_;
 	bool updating_name_widget_;
 };
-- 
2.30.2