Moved some variables in datamodelinstance from public to private

Application.cpp

@@ -696,13 +696,10 @@ void Application::onKeyPressed(int key)
 	{
 		deleteInstance();
 	}
-	if (GetHoldKeyState(VK_RCONTROL))
-	{
-		if (key=='O')
+	if (GetHoldKeyState(VK_RCONTROL) && key=='O')
 	{
 			_dataModel->getOpen();
 	}
-	}
 }
 void Application::onKeyUp(int key)
 {

DataModelInstance.h

@@ -22,10 +22,7 @@ public:
 	bool					readXMLFileStream(std::ifstream* file);
 	void					drawMessage(RenderDevice*);
 	WorkspaceInstance*		getWorkspace();
-	WorkspaceInstance*		workspace;
-	LevelInstance *			level;
 	LevelInstance *			getLevel();
-	GuiRoot*				guiRoot;
 	std::string				message;
 	std::string				_loadedFileName;
 	bool					showMessage;
@@ -51,4 +48,7 @@ private:
 	std::string				_errMsg;
 	bool					_legacyLoad;
 	float					_modY;
+	WorkspaceInstance*		workspace;
+	LevelInstance *			level;
+	GuiRoot*				guiRoot;
 };