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aedTimer.h

00001 
00002 /*
00003  * The aedTimer class
00004  * A _very_ simple timer
00005  * Initial design by Eduardo B. Fonseca <ebf@aedsolucoes.com.br>
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Library General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2 of the License, or (at your option) any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Library General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Library General Public
00018  * License along with this library; if not, write to the Free
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020  *
00021  */
00022 
00023 #ifndef AEDTIMER_H
00024 #define AEDTIMER_H
00025 
00026 #include "aedObject.h"
00027 
00033 class DLLEXPORT aedTimer:public aedObject
00034 {
00035   public:
00036     aedTimer();
00037     ~aedTimer();
00038 
00041     void setAlarm(Uint32 time);
00042 
00044     void enable(bool state);
00045 
00046   private:
00047     /* The timer class uses static member function (timer_cb) as the
00048      * callback for a SDL timer; since static functions don't have 'this'
00049      * pointer, timer_cb receives it via its second parameter (void *).
00050      */
00051     static Uint32 timer_cb(Uint32 interval, void *p);
00052 
00053     bool m_IsEnabled;
00054     Uint32 m_AlarmTime, m_CurTicks, m_LastTicks;
00055     SDL_TimerID m_TID;
00056 };
00057 
00058 #if defined(_MSC_VER)
00059 DLLEXTERN template DLLEXPORT aedFunctor1Arg < stub, aedTimer >;
00060 #endif
00061 
00062 #endif

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