void CBitmapAnimator::Render(CBitmapContext& aBitmapContext, TInt aFrame) const
{
aBitmapContext.Reset();
const CAnimationFrame& nextFrame = *iFrameArray[aFrame];
const TBool useMask = nextFrame.FrameInfo().iFlags&TFrameInfo::ETransparencyPossible || nextFrame.FrameInfo().iFlags&TFrameInfo::EAlphaChannel;
if (useMask)
{
aBitmapContext.BitBltMasked(nextFrame.FrameInfo().iFrameCoordsInPixels.iTl, nextFrame.Bitmap(), nextFrame.FrameInfo().iOverallSizeInPixels, nextFrame.Mask(), EFalse);
}
else
{
aBitmapContext.BitBlt(nextFrame.FrameInfo().iFrameCoordsInPixels.iTl, nextFrame.Bitmap(), nextFrame.FrameInfo().iOverallSizeInPixels);
}
}
void CBitmapAnimator::RenderMask(CBitmapContext& aBitmapContext, TInt aFrame) const
{
aBitmapContext.Reset();
const CAnimationFrame& nextFrame = *iFrameArray[aFrame];
if (aFrame == 0)
{
aBitmapContext.SetBrushColor(KRgbBlack);
aBitmapContext.Clear(iMaxSize);
}
else
{
const CAnimationFrame& currentFrame = *iFrameArray[aFrame - 1];
if (currentFrame.FrameInfo().iFlags & TFrameInfo::ERestoreToBackground)
{
aBitmapContext.SetBrushColor(KRgbBlack);
aBitmapContext.Clear(currentFrame.FrameInfo().iFrameCoordsInPixels);
}
}
const TBool useMask = nextFrame.FrameInfo().iFlags&TFrameInfo::ETransparencyPossible || nextFrame.FrameInfo().iFlags&TFrameInfo::EAlphaChannel;
if (useMask)
{
aBitmapContext.SetDrawMode(CGraphicsContext::EDrawModeOR);
aBitmapContext.BitBlt(nextFrame.FrameInfo().iFrameCoordsInPixels.iTl, nextFrame.Mask(), nextFrame.FrameInfo().iOverallSizeInPixels);
}
else
{
aBitmapContext.SetBrushColor(KRgbWhite);
if (nextFrame.FrameInfo().iOverallSizeInPixels != nextFrame.FrameInfo().iFrameSizeInPixels)
{
// If the frame size smaller than the overall size, the mask shall not take effect later in CBasicAnimation::Draw().
aBitmapContext.Clear(nextFrame.FrameInfo().iOverallSizeInPixels);
}
else
{
aBitmapContext.Clear(nextFrame.FrameInfo().iFrameCoordsInPixels);
}
}
}