Orca Robotics

00001 /*
00002  * Orca-Robotics Project: Components for robotics 
00003  *               http://orca-robotics.sf.net/
00004  * Copyright (c) 2004-2008 Alex Brooks, Alexei Makarenko, Tobias Kaupp
00005  *
00006  * This copy of Orca is licensed to you under the terms described in
00007  * the LICENSE file included in this distribution.
00008  *
00009  */
00010 
00011 #ifndef HYDROQGUI_MOUSEEVENTMANAGER_H
00012 #define HYDROQGUI_MOUSEEVENTMANAGER_H
00013 
00014 #include <hydroqguielementutil/iguielement.h>
00015 #include <hydroutil/uncopyable.h>
00016 
00017 namespace hydroqguielementutil {
00018 
00026 class MouseEventManager : public hydroutil::Uncopyable
00027 {
00028 
00029 public: 
00030 
00031     MouseEventManager()
00032         : mouseEventReceiver_(NULL)
00033         {}
00034 
00035     bool mouseEventReceiverIsSet() const { return mouseEventReceiver_!=NULL; }
00036 
00037     IGuiElement *mouseEventReceiver() const { return mouseEventReceiver_; }
00038 
00039     bool requestBecomeMouseEventReceiver( IGuiElement *requester );
00040 
00041     void relinquishMouseEventReceiver( IGuiElement *relinquisher );
00042 
00043 private: 
00044 
00045     // NULL means no-one is receiving mouse events
00046     IGuiElement *mouseEventReceiver_;
00047 
00048 };
00049 
00050 }
00051 
00052 #endif
mouseeventmanager.h
