YSimpleEventHandler.h

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00001 /*---------------------------------------------------------------------\
00002 |                                                                      |
00003 |                      __   __    ____ _____ ____                      |
00004 |                      \ \ / /_ _/ ___|_   _|___ \                     |
00005 |                       \ V / _` \___ \ | |   __) |                    |
00006 |                        | | (_| |___) || |  / __/                     |
00007 |                        |_|\__,_|____/ |_| |_____|                    |
00008 |                                                                      |
00009 |                               core system                            |
00010 |                                                        (C) SuSE GmbH |
00011 \----------------------------------------------------------------------/
00012 
00013   File:       YSimpleEventHandler.h
00014 
00015   Author:     Stefan Hundhammer <sh@suse.de>
00016 
00017 /-*/
00018 
00019 #ifndef YSimpleEventHandler_h
00020 #define YSimpleEventHandler_h
00021 
00022 
00023 class YEvent;
00024 class YWidget;
00025 
00026 
00032 class YSimpleEventHandler
00033 {
00034 public:
00035 
00039     YSimpleEventHandler();
00040 
00046     virtual ~YSimpleEventHandler();
00047 
00061     void sendEvent( YEvent * event );
00062 
00066     bool eventPendingFor( YWidget * widget ) const;
00067 
00073     YEvent * pendingEvent() const { return _pending_event; }
00074 
00085     YEvent * consumePendingEvent();
00086 
00090     void clear();
00091 
00097     void blockEvents( bool block = true );
00098 
00103     void unblockEvents() { blockEvents( false ); }
00104 
00108     bool eventsBlocked() const { return _events_blocked; }
00109 
00110 
00111 protected:
00112 
00113     // Data members
00114 
00115     YEvent *    _pending_event;
00116     bool        _events_blocked;
00117 };
00118 
00119 
00120 
00121 
00122 #endif // YSimpleEventHandler_h

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