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/*
* Copyright (C) 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "platform/graphics/GradientGeneratedImage.h"
#include "platform/geometry/FloatRect.h"
#include "platform/graphics/GraphicsContextStateSaver.h"
#include "third_party/skia/include/core/SkPicture.h"
namespace blink {
void GradientGeneratedImage::draw(GraphicsContext* destContext, const FloatRect& destRect, const FloatRect& srcRect, CompositeOperator compositeOp, WebBlendMode blendMode)
{
GraphicsContextStateSaver stateSaver(*destContext);
destContext->setCompositeOperation(compositeOp, blendMode);
destContext->clip(destRect);
destContext->translate(destRect.x(), destRect.y());
if (destRect.size() != srcRect.size())
destContext->scale(destRect.width() / srcRect.width(), destRect.height() / srcRect.height());
destContext->translate(-srcRect.x(), -srcRect.y());
destContext->setFillGradient(m_gradient);
destContext->fillRect(FloatRect(FloatPoint(), m_size));
}
void GradientGeneratedImage::drawPattern(GraphicsContext* destContext, const FloatRect& srcRect, const FloatSize& scale,
const FloatPoint& phase, CompositeOperator compositeOp, const FloatRect& destRect, WebBlendMode blendMode, const IntSize& repeatSpacing)
{
FloatRect tileRect = srcRect;
tileRect.expand(repeatSpacing);
GraphicsContext recordingContext(nullptr, nullptr);
recordingContext.beginRecording(tileRect);
recordingContext.setFillGradient(m_gradient);
recordingContext.fillRect(srcRect);
RefPtr<const SkPicture> tilePicture = recordingContext.endRecording();
AffineTransform patternTransform;
patternTransform.translate(phase.x(), phase.y());
patternTransform.scale(scale.width(), scale.height());
patternTransform.translate(tileRect.x(), tileRect.y());
RefPtr<Pattern> picturePattern = Pattern::createPicturePattern(tilePicture);
picturePattern->setPatternSpaceTransform(patternTransform);
GraphicsContextStateSaver saver(*destContext);
destContext->setCompositeOperation(compositeOp, blendMode);
destContext->setFillPattern(picturePattern);
destContext->fillRect(destRect);
}
} // namespace blink
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