void BitmapImage::resetAnimation()
{
stopAnimation();
m_currentFrame = 0;
m_repetitionsComplete = 0;
m_desiredFrameStartTime = 0;
m_animationFinished = false;
// For extremely large animations, when the animation is reset, we just throw everything away.
destroyDecodedDataIfNecessary(true);
}
bool BitmapImage::internalAdvanceAnimation(AnimationAdvancement advancement)
{
clearTimer();
if (m_animationFinishedWhenCatchingUp) {
imageObserver()->animationAdvanced(this);
m_animationFinishedWhenCatchingUp = false;
return false;
}
++m_currentFrame;
bool advancedAnimation = true;
bool destroyAll = false;
if (m_currentFrame >= frameCount()) {
++m_repetitionsComplete;
// Get the repetition count again. If we weren't able to get a
// repetition count before, we should have decoded the whole image by
// now, so it should now be available.
// Note that we don't need to special-case cAnimationLoopOnce here
// because it is 0 (see comments on its declaration in ImageSource.h).
if (repetitionCount(true) != cAnimationLoopInfinite && m_repetitionsComplete > m_repetitionCount) {
m_animationFinished = true;
m_desiredFrameStartTime = 0;
--m_currentFrame;
advancedAnimation = false;
} else {
m_currentFrame = 0;
destroyAll = true;
}
}
destroyDecodedDataIfNecessary(destroyAll);
// We need to draw this frame if we advanced to it while not skipping, or if
// while trying to skip frames we hit the last frame and thus had to stop.
if (advancement == Normal && advancedAnimation)
imageObserver()->animationAdvanced(this);
return advancedAnimation;
}
bool BitmapImage::internalAdvanceAnimation(bool skippingFrames)
{
// Stop the animation.
stopAnimation();
// See if anyone is still paying attention to this animation. If not, we don't
// advance and will remain suspended at the current frame until the animation is resumed.
if (!skippingFrames && imageObserver()->shouldPauseAnimation(this))
return false;
++m_currentFrame;
bool advancedAnimation = true;
bool destroyAll = false;
if (m_currentFrame >= frameCount()) {
++m_repetitionsComplete;
// Get the repetition count again. If we weren't able to get a
// repetition count before, we should have decoded the whole image by
// now, so it should now be available.
// Note that we don't need to special-case cAnimationLoopOnce here
// because it is 0 (see comments on its declaration in ImageSource.h).
if (repetitionCount(true) != cAnimationLoopInfinite && m_repetitionsComplete > m_repetitionCount) {
m_animationFinished = true;
m_desiredFrameStartTime = 0;
--m_currentFrame;
advancedAnimation = false;
} else {
m_currentFrame = 0;
destroyAll = true;
}
}
destroyDecodedDataIfNecessary(destroyAll);
// We need to draw this frame if we advanced to it while not skipping, or if
// while trying to skip frames we hit the last frame and thus had to stop.
if (skippingFrames != advancedAnimation)
imageObserver()->animationAdvanced(this);
return advancedAnimation;
}
