From f570ce448fcd3463fc9cfc50c83230dc68b9bafd Mon Sep 17 00:00:00 2001
From: Krisjanis Rijnieks <krisjanis.rijnieks@gmail.com>
Date: Wed, 24 Aug 2016 21:19:22 +0300
Subject: [PATCH] Fix bug in ProjectionMappingState::onGuiEvent

Mouse releassed event caused crash
---
 src/Application/ProjectionMappingState.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Application/ProjectionMappingState.cpp b/src/Application/ProjectionMappingState.cpp
index 4024ccc..7ca7b29 100644
--- a/src/Application/ProjectionMappingState.cpp
+++ b/src/Application/ProjectionMappingState.cpp
@@ -348,6 +348,10 @@ void ProjectionMappingState::onGuiEvent(Application * app, GuiEvent & e){
 			_surfaceScaleBeforeTransform =
 				app->getSurfaceManager()->getSelectedSurface()->getScale();
 		}else if(e.args.type == e.args.Released){
+			if(app->getSurfaceManager()->getSelectedSurface() == 0){
+				return;
+			}
+			
 			if(_surfaceScaleBeforeTransform !=
 				app->getSurfaceManager()->getSelectedSurface()->getScale()){