void SVGImage::drawForContainer(GraphicsContext* context, const FloatSize containerSize, float zoom, const FloatRect& dstRect,
const FloatRect& srcRect, ColorSpace colorSpace, CompositeOperator compositeOp, BlendMode blendMode)
{
if (!m_page)
return;
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
setImageObserver(0);
IntSize roundedContainerSize = roundedIntSize(containerSize);
setContainerSize(roundedContainerSize);
FloatRect scaledSrc = srcRect;
scaledSrc.scale(1 / zoom);
// Compensate for the container size rounding by adjusting the source rect.
FloatSize adjustedSrcSize = scaledSrc.size();
adjustedSrcSize.scale(roundedContainerSize.width() / containerSize.width(), roundedContainerSize.height() / containerSize.height());
scaledSrc.setSize(adjustedSrcSize);
draw(context, dstRect, scaledSrc, colorSpace, compositeOp, blendMode);
setImageObserver(observer);
}
void BitmapImage::drawPattern(GraphicsContext& ctxt, const FloatRect& tileRect, const AffineTransform& transform,
const FloatPoint& phase, const FloatSize& spacing, CompositeOperator op, const FloatRect& destRect, BlendMode blendMode)
{
if (tileRect.isEmpty())
return;
if (!ctxt.drawLuminanceMask()) {
Image::drawPattern(ctxt, tileRect, transform, phase, spacing, op, destRect, blendMode);
return;
}
if (!m_cachedImage) {
auto buffer = ImageBuffer::createCompatibleBuffer(expandedIntSize(tileRect.size()), ctxt);
if (!buffer)
return;
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
setImageObserver(nullptr);
draw(buffer->context(), tileRect, tileRect, op, blendMode, ImageOrientationDescription());
setImageObserver(observer);
buffer->convertToLuminanceMask();
m_cachedImage = buffer->copyImage(DontCopyBackingStore, Unscaled);
if (!m_cachedImage)
return;
}
ctxt.setDrawLuminanceMask(false);
m_cachedImage->drawPattern(ctxt, tileRect, transform, phase, spacing, op, destRect, blendMode);
}
void BitmapImage::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& transform,
const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect, BlendMode blendMode)
{
if (tileRect.isEmpty())
return;
if (!ctxt->drawLuminanceMask()) {
Image::drawPattern(ctxt, tileRect, transform, phase, styleColorSpace, op, destRect, blendMode);
return;
}
if (!m_cachedImage) {
OwnPtr<ImageBuffer> buffer = ImageBuffer::create(expandedIntSize(tileRect.size()));
ASSERT(buffer.get());
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
setImageObserver(0);
draw(buffer->context(), tileRect, tileRect, styleColorSpace, op, blendMode);
setImageObserver(observer);
buffer->convertToLuminanceMask();
m_cachedImage = buffer->copyImage(DontCopyBackingStore, Unscaled);
m_cachedImage->setSpaceSize(spaceSize());
setImageObserver(observer);
}
ctxt->setDrawLuminanceMask(false);
m_cachedImage->drawPattern(ctxt, tileRect, transform, phase, styleColorSpace, op, destRect, blendMode);
}
void SVGImage::drawSVGToImageBuffer(ImageBuffer* buffer, const IntSize& size, float zoom, ShouldClearBuffer shouldClear)
{
// FIXME: This doesn't work correctly with animations. If an image contains animations, that say run for 2 seconds,
// and we currently have one <img> that displays us. If we open another document referencing the same SVGImage it
// will display the document at a time where animations already ran - even though it has its own ImageBuffer.
// We currently don't implement SVGSVGElement::setCurrentTime, and can NOT go back in time, once animations started.
// There's no way to fix this besides avoiding style/attribute mutations from SVGAnimationElement.
ASSERT(buffer);
ASSERT(!size.isEmpty());
if (!m_page)
return;
Frame* frame = m_page->mainFrame();
SVGSVGElement* rootElement = static_cast<SVGDocument*>(frame->document())->rootElement();
if (!rootElement)
return;
RenderSVGRoot* renderer = toRenderSVGRoot(rootElement->renderer());
if (!renderer)
return;
// Draw image at requested size.
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due this relayout.
setImageObserver(0);
renderer->setContainerSize(size);
frame->view()->resize(this->size());
if (zoom != 1)
frame->setPageZoomFactor(zoom);
// Eventually clear image buffer.
IntRect rect(IntPoint(), size);
if (shouldClear == ClearImageBuffer)
buffer->context()->clearRect(rect);
// Draw SVG on top of ImageBuffer.
draw(buffer->context(), rect, rect, ColorSpaceDeviceRGB, CompositeSourceOver);
// Reset container size & zoom to initial state. Otherwhise the size() of this
// image would return whatever last size was set by drawSVGToImageBuffer().
if (zoom != 1)
frame->setPageZoomFactor(1);
renderer->setContainerSize(IntSize());
frame->view()->resize(this->size());
if (frame->view()->needsLayout())
frame->view()->layout();
setImageObserver(observer);
}
