GeneratedImage.cpp [plain text]
#include "config.h"
#include "GeneratedImage.h"
#include "FloatRect.h"
#include "GraphicsContext.h"
#include "ImageBuffer.h"
#include "Length.h"
namespace WebCore {
void GeneratedImage::draw(GraphicsContext* context, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace, CompositeOperator compositeOp)
{
GraphicsContextStateSaver stateSaver(*context);
context->setCompositeOperation(compositeOp);
context->clip(dstRect);
context->translate(dstRect.x(), dstRect.y());
if (dstRect.size() != srcRect.size())
context->scale(FloatSize(dstRect.width() / srcRect.width(), dstRect.height() / srcRect.height()));
context->translate(-srcRect.x(), -srcRect.y());
context->fillRect(FloatRect(FloatPoint(), m_size), *m_generator.get());
}
void GeneratedImage::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator compositeOp, const FloatRect& destRect)
{
IntSize adjustedSize = m_size;
FloatRect adjustedSrcRect = srcRect;
m_generator->adjustParametersForTiledDrawing(adjustedSize, adjustedSrcRect);
OwnPtr<ImageBuffer> imageBuffer = ImageBuffer::create(adjustedSize);
if (!imageBuffer)
return;
GraphicsContext* graphicsContext = imageBuffer->context();
graphicsContext->fillRect(FloatRect(FloatPoint(), adjustedSize), *m_generator.get());
imageBuffer->drawPattern(context, adjustedSrcRect, patternTransform, phase, styleColorSpace, compositeOp, destRect);
}
void GeneratedImage::computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
{
Image::computeIntrinsicDimensions(intrinsicWidth, intrinsicHeight, intrinsicRatio);
intrinsicRatio = FloatSize();
}
}