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/*
* Copyright (C) 2021-2022 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. ``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
* 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.
*/
#pragma once
#include "GraphicsContext.h"
#include <wtf/UniqueRef.h>
namespace WebCore {
// BifurcatedGraphicsContext allows you to duplicate painting between two given GraphicsContexts;
// for example, for painting into a bitmap-backed and a display-list-backed context simultaneously.
// Any state that is returned by GraphicsContext methods will be retrieved from the primary context.
class WEBCORE_EXPORT BifurcatedGraphicsContext : public GraphicsContext {
WTF_FORBID_HEAP_ALLOCATION;
public:
BifurcatedGraphicsContext(GraphicsContext& primaryContext, GraphicsContext& secondaryContext);
~BifurcatedGraphicsContext();
bool hasPlatformContext() const;
PlatformGraphicsContext* platformContext() const final;
void save() final;
void restore() final;
void drawRect(const FloatRect&, float borderThickness = 1) final;
void drawLine(const FloatPoint&, const FloatPoint&) final;
void drawEllipse(const FloatRect&) final;
#if USE(CG)
void applyStrokePattern() final;
void applyFillPattern() final;
#endif
void drawPath(const Path&) final;
void fillPath(const Path&) final;
void strokePath(const Path&) final;
void beginTransparencyLayer(float opacity) final;
void endTransparencyLayer() final;
void applyDeviceScaleFactor(float factor) final;
using GraphicsContext::fillRect;
void fillRect(const FloatRect&) final;
void fillRect(const FloatRect&, const Color&) final;
void fillRoundedRectImpl(const FloatRoundedRect&, const Color&) final;
void fillRectWithRoundedHole(const FloatRect&, const FloatRoundedRect& roundedHoleRect, const Color&) final;
void clearRect(const FloatRect&) final;
void strokeRect(const FloatRect&, float lineWidth) final;
void fillEllipse(const FloatRect& ellipse) final;
void strokeEllipse(const FloatRect& ellipse) final;
#if USE(CG)
void setIsCALayerContext(bool) final;
bool isCALayerContext() const final;
void setIsAcceleratedContext(bool) final;
#endif
RenderingMode renderingMode() const final;
void clip(const FloatRect&) final;
void clipOut(const FloatRect&) final;
void clipOut(const Path&) final;
void clipPath(const Path&, WindRule = WindRule::EvenOdd) final;
IntRect clipBounds() const final;
void setLineCap(LineCap) final;
void setLineDash(const DashArray&, float dashOffset) final;
void setLineJoin(LineJoin) final;
void setMiterLimit(float) final;
void drawNativeImage(NativeImage&, const FloatSize& selfSize, const FloatRect& destRect, const FloatRect& srcRect, const ImagePaintingOptions& = { }) final;
void drawSystemImage(SystemImage&, const FloatRect&) final;
void drawPattern(NativeImage&, const FloatRect& destRect, const FloatRect& tileRect, const AffineTransform& patternTransform, const FloatPoint& phase, const FloatSize& spacing, const ImagePaintingOptions& = { }) final;
ImageDrawResult drawImage(Image&, const FloatRect& destination, const FloatRect& source, const ImagePaintingOptions& = { ImageOrientation::FromImage }) final;
ImageDrawResult drawTiledImage(Image&, const FloatRect& destination, const FloatPoint& source, const FloatSize& tileSize, const FloatSize& spacing, const ImagePaintingOptions& = { }) final;
ImageDrawResult drawTiledImage(Image&, const FloatRect& destination, const FloatRect& source, const FloatSize& tileScaleFactor, Image::TileRule, Image::TileRule, const ImagePaintingOptions& = { }) final;
#if ENABLE(VIDEO)
void paintFrameForMedia(MediaPlayer&, const FloatRect& destination) final;
#endif
using GraphicsContext::scale;
void scale(const FloatSize&) final;
void rotate(float angleInRadians) final;
void translate(float x, float y) final;
void concatCTM(const AffineTransform&) final;
void setCTM(const AffineTransform&) final;
AffineTransform getCTM(IncludeDeviceScale = PossiblyIncludeDeviceScale) const final;
FloatRect roundToDevicePixels(const FloatRect&, RoundingMode = RoundAllSides) final;
void drawFocusRing(const Vector<FloatRect>&, float, float, const Color&) final;
void drawFocusRing(const Path&, float, float, const Color&) final;
#if PLATFORM(MAC)
void drawFocusRing(const Path&, double, bool&, const Color&) final;
void drawFocusRing(const Vector<FloatRect>&, double, bool&, const Color&) final;
#endif
FloatSize drawText(const FontCascade&, const TextRun&, const FloatPoint&, unsigned from = 0, std::optional<unsigned> to = std::nullopt) final;
void drawGlyphs(const Font&, const GlyphBufferGlyph*, const GlyphBufferAdvance*, unsigned numGlyphs, const FloatPoint&, FontSmoothingMode) final;
void drawDecomposedGlyphs(const Font&, const DecomposedGlyphs&) final;
void drawEmphasisMarks(const FontCascade&, const TextRun&, const AtomString& mark, const FloatPoint&, unsigned from = 0, std::optional<unsigned> to = std::nullopt) final;
void drawBidiText(const FontCascade&, const TextRun&, const FloatPoint&, FontCascade::CustomFontNotReadyAction = FontCascade::DoNotPaintIfFontNotReady) final;
void drawLinesForText(const FloatPoint&, float thickness, const DashArray& widths, bool printing, bool doubleLines, StrokeStyle) final;
void drawDotsForDocumentMarker(const FloatRect&, DocumentMarkerLineStyle) final;
void setURLForRect(const URL&, const FloatRect&) final;
void setDestinationForRect(const String& name, const FloatRect&) final;
void addDestinationAtPoint(const String& name, const FloatPoint&) final;
bool supportsInternalLinks() const final;
void didUpdateState(GraphicsContextState&) final;
#if OS(WINDOWS) && !USE(CAIRO)
GraphicsContextPlatformPrivate* deprecatedPrivateContext() const final;
#endif
private:
GraphicsContext& m_primaryContext;
GraphicsContext& m_secondaryContext;
};
}