From 6badbe5112e7e7329faefcae872aa97e51392275 Mon Sep 17 00:00:00 2001
From: dfighter1985 <devnull@localhost>
Date: Wed, 17 Sep 2014 19:27:06 +0200
Subject: [PATCH] Added support for clearing the Expression Editor scene.

---
 .../src/plugins/gui_editor/expression_editor.cpp     | 12 ++++++++++++
 .../src/plugins/gui_editor/expression_editor.h       |  1 +
 2 files changed, 13 insertions(+)

diff --git a/code/studio/src/plugins/gui_editor/expression_editor.cpp b/code/studio/src/plugins/gui_editor/expression_editor.cpp
index 5be3939fd..392bdca41 100644
--- a/code/studio/src/plugins/gui_editor/expression_editor.cpp
+++ b/code/studio/src/plugins/gui_editor/expression_editor.cpp
@@ -135,6 +135,9 @@ void ExpressionEditor::contextMenuEvent( QContextMenuEvent *e )
 
 		a = menu.addAction( "Save" );
 		connect( a, SIGNAL( triggered() ), this, SLOT( onSave() ) );
+
+		a = menu.addAction( "Clear" );
+		connect( a, SIGNAL( triggered() ), this, SLOT( onClear() ) );
 	}
 
 	menu.exec( e->globalPos() );
@@ -334,6 +337,15 @@ void ExpressionEditor::onSave()
 	close();
 }
 
+void ExpressionEditor::onClear()
+{
+	m_scene->clear();
+	m_pvt->m_root = NULL;
+	m_nodeCount = 0;
+	m_selectionCount = 0;
+	m_result = "";
+}
+
 
 void ExpressionEditor::addExpression( const ExpressionInfo *info )
 {
diff --git a/code/studio/src/plugins/gui_editor/expression_editor.h b/code/studio/src/plugins/gui_editor/expression_editor.h
index ce13ff58e..92cc959bd 100644
--- a/code/studio/src/plugins/gui_editor/expression_editor.h
+++ b/code/studio/src/plugins/gui_editor/expression_editor.h
@@ -55,6 +55,7 @@ private Q_SLOTS:
 	void onSetRoot();
 	void onBuildExpression();
 	void onSave();
+	void onClear();
 
 private:
 	void addExpression( const ExpressionInfo *info );