git.sesse.net Git - casparcg/blob - modules/flash/interop/TimerHelper.h

   1 /*
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
   3 *
   4 *  This file is part of CasparCG.
   5 *
   6 *    CasparCG is free software: you can redistribute it and/or modify
   7 *    it under the terms of the GNU General Public License as published by
   8 *    the Free Software Foundation, either version 3 of the License, or
   9 *    (at your option) any later version.
  10 *
  11 *    CasparCG is distributed in the hope that it will be useful,
  12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *    GNU General Public License for more details.
  15
  16 *    You should have received a copy of the GNU General Public License
  17 *    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 */
  20
  21 #ifndef _TIMER_HELPER_H__
  22 #define _TIMER_HELPER_H__
  23
  24 #include "FlashAxContainer.h"
  25
  26 namespace caspar {
  27 namespace flash {
  28
  29         class TimerHelper
  30         {
  31                 TimerHelper(const TimerHelper&);
  32                 const TimerHelper& operator=(const TimerHelper&);
  33
  34         public:
  35                 TimerHelper()
  36                 {}
  37                 TimerHelper(DWORD id, DWORD first, DWORD interv, ITimerSink* pTS)
  38                         : ID(id)
  39                         , firstTime(first)
  40                         , interval(interv)
  41                         , currentTime(first)
  42                         , pTimerSink(pTS)
  43                 {
  44                 }
  45
  46                 ~TimerHelper()
  47                 {
  48                 }
  49                 void Setup(DWORD id, DWORD first, DWORD interv, ITimerSink* pTS)
  50                 {
  51                         ID = id;
  52                         firstTime = first;
  53                         interval = interv;
  54                         currentTime = first;
  55                         pTimerSink = pTS;
  56                 }
  57
  58                 DWORD Invoke()
  59                 {
  60                         if(pTimerSink != 0)
  61                         {
  62                                 VARIANT value;
  63                                 value.vt = VT_UI4;
  64                                 value.ulVal = currentTime;
  65
  66                                 pTimerSink->OnTimer(value);
  67                                 currentTime += interval;
  68                         }
  69                         return currentTime;
  70                 }
  71
  72                 DWORD ID;
  73                 DWORD firstTime;
  74                 DWORD interval;
  75                 DWORD currentTime;
  76                 ATL::CComPtr<ITimerSink> pTimerSink;
  77         };
  78
  79 }       //namespace flash
  80 }       //namespace caspar
  81
  82 #endif  //_TIMER_HELPER_H__