void clipToImage (const Image& image, const AffineTransform& transform)
{
clearImageClip();
if (bitmapMaskLayer == 0)
owner.renderingTarget->CreateLayer (bitmapMaskLayer.resetAndGetPointerAddress());
D2D1_BRUSH_PROPERTIES brushProps;
brushProps.opacity = 1;
brushProps.transform = transformToMatrix (transform);
D2D1_BITMAP_BRUSH_PROPERTIES bmProps = D2D1::BitmapBrushProperties (D2D1_EXTEND_MODE_WRAP, D2D1_EXTEND_MODE_WRAP);
D2D1_SIZE_U size;
size.width = image.getWidth();
size.height = image.getHeight();
D2D1_BITMAP_PROPERTIES bp = D2D1::BitmapProperties();
maskImage = image.convertedToFormat (Image::ARGB);
Image::BitmapData bd (this->image, Image::BitmapData::readOnly); // xxx should be maskImage?
bp.pixelFormat = owner.renderingTarget->GetPixelFormat();
bp.pixelFormat.alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED;
HRESULT hr = owner.renderingTarget->CreateBitmap (size, bd.data, bd.lineStride, bp, maskBitmap.resetAndGetPointerAddress());
hr = owner.renderingTarget->CreateBitmapBrush (maskBitmap, bmProps, brushProps, bitmapMaskBrush.resetAndGetPointerAddress());
imageMaskLayerParams = D2D1::LayerParameters();
imageMaskLayerParams.opacityBrush = bitmapMaskBrush;
shouldClipBitmap = true;
pushClips();
}
~SavedState()
{
clearClip();
clearFont();
clearFill();
clearPathClip();
clearImageClip();
complexClipLayer = 0;
bitmapMaskLayer = 0;
}
Direct2DLowLevelGraphicsContext::SavedState::~SavedState()
{
clearClip();
clearFont();
clearFill();
clearPathClip();
clearImageClip();
complexClipLayer = 0;
bitmapMaskLayer = 0;
}
