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 first, DWORD interv, ITimerSink* pTS) : firstTime(first), interval(interv), currentTime(first), pTimerSink(pTS)
  38                 {
  39                         ID = first;
  40                 }
  41                 ~TimerHelper()
  42                 {
  43                 }
  44                 void Setup(DWORD first, DWORD interv, ITimerSink* pTS)
  45                 {
  46                         firstTime = first;
  47                         interval = interv;
  48                         currentTime = first;
  49                         pTimerSink = pTS;
  50                         ID = first;
  51                 }
  52
  53                 DWORD Invoke()
  54                 {
  55                         if(pTimerSink != 0)
  56                         {
  57                                 VARIANT value;
  58                                 value.vt = VT_UI4;
  59                                 value.ulVal = currentTime;
  60
  61                                 pTimerSink->OnTimer(value);
  62                                 currentTime += interval;
  63                         }
  64                         return currentTime;
  65                 }
  66
  67                 DWORD firstTime;
  68                 DWORD interval;
  69                 DWORD currentTime;
  70                 ATL::CComPtr<ITimerSink> pTimerSink;
  71                 DWORD ID;
  72         };
  73
  74 }       //namespace flash
  75 }       //namespace caspar
  76
  77 #endif  //_TIMER_HELPER_H__