khtml/imload/animtimer.h

   1 /*
   2     Large image displaying library.
   3
   4     Copyright (C) 2004 Maks Orlovich (maksim@kde.org)
   5
   6     Permission is hereby granted, free of charge, to any person obtaining a copy
   7     of this software and associated documentation files (the "Software"), to deal
   8     in the Software without restriction, including without limitation the rights
   9     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10     copies of the Software, and to permit persons to whom the Software is
  11     furnished to do so, subject to the following conditions:
  12
  13     The above copyright notice and this permission notice shall be included in
  14     all copies or substantial portions of the Software.
  15
  16     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  19     AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20     AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21     CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 */
  24
  25 #ifndef ANIM_TIMER_H
  26 #define ANIM_TIMER_H
  27
  28 #include <QtCore/QDate>
  29 #include <QtCore/QObject>
  30 #include <QtCore/QMap>
  31
  32 class QTimer;
  33
  34 namespace khtmlImLoad {
  35
  36 class AnimProvider;
  37
  38 /**
  39 This class is used to manage animation frame change requests, to avoid creating multiple
  40 QTimers for this purpose.
  41 */
  42 class AnimTimer: public QObject
  43 {
  44     Q_OBJECT
  45 public:
  46     AnimTimer();
  47
  48     /**
  49      This requests that a new frame notification be called at the given delay on the given AnimProvider.
  50      Note that only the first request is honored, until the notification is given
  51      */
  52     void nextFrameIn(AnimProvider* provider, int ms);
  53
  54     void destroyed(AnimProvider* provider);
  55 private Q_SLOTS:
  56     void tick();
  57 private:
  58     QTimer* animTicks;
  59     QMap<AnimProvider*, int> pending;
  60     QTime lastTime;
  61 };
  62
  63 }
  64
  65 #endif
  66 // kate: indent-width 4; replace-tabs on; tab-width 4; space-indent on;