2014-08-01 20:01:47 +04:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_DRAWCOMMAND_H_
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#define MOZILLA_GFX_DRAWCOMMAND_H_
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2015-06-10 20:57:08 +03:00
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#define _USE_MATH_DEFINES
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#include <math.h>
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2014-08-01 20:01:47 +04:00
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#include "2D.h"
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#include "Filters.h"
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#include <vector>
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namespace mozilla {
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namespace gfx {
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2015-01-26 01:22:07 +03:00
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enum class CommandType : int8_t {
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2014-08-01 20:01:47 +04:00
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DRAWSURFACE = 0,
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DRAWFILTER,
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DRAWSURFACEWITHSHADOW,
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CLEARRECT,
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COPYSURFACE,
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COPYRECT,
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FILLRECT,
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STROKERECT,
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STROKELINE,
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STROKE,
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FILL,
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FILLGLYPHS,
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MASK,
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MASKSURFACE,
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PUSHCLIP,
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PUSHCLIPRECT,
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POPCLIP,
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SETTRANSFORM,
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FLUSH
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2015-01-26 01:22:07 +03:00
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};
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2014-08-01 20:01:47 +04:00
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class DrawingCommand
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{
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public:
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virtual ~DrawingCommand() {}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix* aTransform = nullptr) = 0;
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2015-06-10 20:57:08 +03:00
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2015-06-10 20:57:08 +03:00
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virtual bool GetAffectedRect(Rect& aDeviceRect, const Matrix& aTransform) { return false; }
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2014-08-01 20:01:47 +04:00
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protected:
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2014-09-01 07:31:20 +04:00
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explicit DrawingCommand(CommandType aType)
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2014-08-01 20:01:47 +04:00
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: mType(aType)
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{
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}
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CommandType GetType() { return mType; }
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private:
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CommandType mType;
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};
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class StoredPattern
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{
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public:
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explicit StoredPattern(const Pattern& aPattern)
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{
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Assign(aPattern);
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}
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void Assign(const Pattern& aPattern)
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{
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switch (aPattern.GetType()) {
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case PatternType::COLOR:
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new (mColor)ColorPattern(*static_cast<const ColorPattern*>(&aPattern));
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return;
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case PatternType::SURFACE:
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{
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SurfacePattern* surfPat = new (mColor)SurfacePattern(*static_cast<const SurfacePattern*>(&aPattern));
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surfPat->mSurface->GuaranteePersistance();
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return;
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}
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case PatternType::LINEAR_GRADIENT:
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new (mColor)LinearGradientPattern(*static_cast<const LinearGradientPattern*>(&aPattern));
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return;
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case PatternType::RADIAL_GRADIENT:
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new (mColor)RadialGradientPattern(*static_cast<const RadialGradientPattern*>(&aPattern));
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return;
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}
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}
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~StoredPattern()
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{
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reinterpret_cast<Pattern*>(mColor)->~Pattern();
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}
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operator Pattern&()
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{
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return *reinterpret_cast<Pattern*>(mColor);
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}
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operator const Pattern&() const
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{
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return *reinterpret_cast<const Pattern*>(mColor);
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}
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StoredPattern(const StoredPattern& aPattern)
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{
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Assign(aPattern);
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}
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private:
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StoredPattern operator=(const StoredPattern& aOther)
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{
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// Block this so that we notice if someone's doing excessive assigning.
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return *this;
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}
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union {
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char mColor[sizeof(ColorPattern)];
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char mLinear[sizeof(LinearGradientPattern)];
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char mRadial[sizeof(RadialGradientPattern)];
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char mSurface[sizeof(SurfacePattern)];
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};
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};
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class DrawSurfaceCommand : public DrawingCommand
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{
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public:
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DrawSurfaceCommand(SourceSurface *aSurface, const Rect& aDest,
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const Rect& aSource, const DrawSurfaceOptions& aSurfOptions,
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const DrawOptions& aOptions)
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: DrawingCommand(CommandType::DRAWSURFACE)
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, mSurface(aSurface), mDest(aDest)
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, mSource(aSource), mSurfOptions(aSurfOptions)
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, mOptions(aOptions)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->DrawSurface(mSurface, mDest, mSource, mSurfOptions, mOptions);
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}
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private:
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RefPtr<SourceSurface> mSurface;
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Rect mDest;
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Rect mSource;
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DrawSurfaceOptions mSurfOptions;
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DrawOptions mOptions;
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};
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class DrawFilterCommand : public DrawingCommand
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{
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public:
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DrawFilterCommand(FilterNode* aFilter, const Rect& aSourceRect,
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const Point& aDestPoint, const DrawOptions& aOptions)
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2015-05-26 09:59:47 +03:00
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: DrawingCommand(CommandType::DRAWSURFACE)
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2014-08-01 20:01:47 +04:00
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, mFilter(aFilter), mSourceRect(aSourceRect)
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, mDestPoint(aDestPoint), mOptions(aOptions)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->DrawFilter(mFilter, mSourceRect, mDestPoint, mOptions);
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}
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private:
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RefPtr<FilterNode> mFilter;
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Rect mSourceRect;
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Point mDestPoint;
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DrawOptions mOptions;
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};
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class ClearRectCommand : public DrawingCommand
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{
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public:
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2014-09-01 07:31:20 +04:00
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explicit ClearRectCommand(const Rect& aRect)
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2014-08-01 20:01:47 +04:00
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: DrawingCommand(CommandType::CLEARRECT)
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, mRect(aRect)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->ClearRect(mRect);
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}
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private:
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Rect mRect;
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};
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class CopySurfaceCommand : public DrawingCommand
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{
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public:
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CopySurfaceCommand(SourceSurface* aSurface,
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const IntRect& aSourceRect,
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const IntPoint& aDestination)
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: DrawingCommand(CommandType::COPYSURFACE)
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, mSurface(aSurface)
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, mSourceRect(aSourceRect)
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, mDestination(aDestination)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix* aTransform)
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2014-08-01 20:01:47 +04:00
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{
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2015-09-28 14:49:45 +03:00
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MOZ_ASSERT(!aTransform || !aTransform->HasNonIntegerTranslation());
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2014-08-01 20:01:47 +04:00
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Point dest(Float(mDestination.x), Float(mDestination.y));
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2015-09-28 14:49:45 +03:00
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if (aTransform) {
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dest = (*aTransform) * dest;
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}
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2014-08-01 20:01:47 +04:00
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aDT->CopySurface(mSurface, mSourceRect, IntPoint(uint32_t(dest.x), uint32_t(dest.y)));
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}
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private:
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RefPtr<SourceSurface> mSurface;
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IntRect mSourceRect;
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IntPoint mDestination;
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};
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class FillRectCommand : public DrawingCommand
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{
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public:
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FillRectCommand(const Rect& aRect,
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const Pattern& aPattern,
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const DrawOptions& aOptions)
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: DrawingCommand(CommandType::FILLRECT)
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, mRect(aRect)
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, mPattern(aPattern)
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, mOptions(aOptions)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->FillRect(mRect, mPattern, mOptions);
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}
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2015-06-10 20:57:08 +03:00
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bool GetAffectedRect(Rect& aDeviceRect, const Matrix& aTransform)
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{
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aDeviceRect = aTransform.TransformBounds(mRect);
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return true;
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}
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2014-08-01 20:01:47 +04:00
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private:
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Rect mRect;
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StoredPattern mPattern;
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DrawOptions mOptions;
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};
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class StrokeRectCommand : public DrawingCommand
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{
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public:
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StrokeRectCommand(const Rect& aRect,
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const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions,
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const DrawOptions& aOptions)
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: DrawingCommand(CommandType::STROKERECT)
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, mRect(aRect)
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, mPattern(aPattern)
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, mStrokeOptions(aStrokeOptions)
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, mOptions(aOptions)
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{
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2015-06-10 20:57:08 +03:00
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if (aStrokeOptions.mDashLength) {
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mDashes.resize(aStrokeOptions.mDashLength);
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mStrokeOptions.mDashPattern = &mDashes.front();
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memcpy(&mDashes.front(), aStrokeOptions.mDashPattern, mStrokeOptions.mDashLength * sizeof(Float));
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}
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2014-08-01 20:01:47 +04:00
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->StrokeRect(mRect, mPattern, mStrokeOptions, mOptions);
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}
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private:
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Rect mRect;
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StoredPattern mPattern;
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StrokeOptions mStrokeOptions;
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DrawOptions mOptions;
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2015-06-10 20:57:08 +03:00
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std::vector<Float> mDashes;
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2014-08-01 20:01:47 +04:00
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};
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class StrokeLineCommand : public DrawingCommand
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{
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public:
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StrokeLineCommand(const Point& aStart,
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const Point& aEnd,
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const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions,
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const DrawOptions& aOptions)
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: DrawingCommand(CommandType::STROKELINE)
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, mStart(aStart)
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, mEnd(aEnd)
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, mPattern(aPattern)
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, mStrokeOptions(aStrokeOptions)
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, mOptions(aOptions)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->StrokeLine(mStart, mEnd, mPattern, mStrokeOptions, mOptions);
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}
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private:
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Point mStart;
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Point mEnd;
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StoredPattern mPattern;
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StrokeOptions mStrokeOptions;
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DrawOptions mOptions;
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};
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class FillCommand : public DrawingCommand
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{
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public:
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FillCommand(const Path* aPath,
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const Pattern& aPattern,
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const DrawOptions& aOptions)
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: DrawingCommand(CommandType::FILL)
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, mPath(const_cast<Path*>(aPath))
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, mPattern(aPattern)
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, mOptions(aOptions)
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{
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}
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2015-09-28 14:49:45 +03:00
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virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
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2014-08-01 20:01:47 +04:00
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{
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aDT->Fill(mPath, mPattern, mOptions);
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}
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2015-06-10 20:57:08 +03:00
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bool GetAffectedRect(Rect& aDeviceRect, const Matrix& aTransform)
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{
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aDeviceRect = mPath->GetBounds(aTransform);
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return true;
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}
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2014-08-01 20:01:47 +04:00
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private:
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RefPtr<Path> mPath;
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StoredPattern mPattern;
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DrawOptions mOptions;
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};
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2015-06-10 20:57:08 +03:00
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#ifndef M_SQRT2
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#define M_SQRT2 1.41421356237309504880
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#endif
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#ifndef M_SQRT1_2
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#define M_SQRT1_2 0.707106781186547524400844362104849039
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#endif
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// The logic for this comes from _cairo_stroke_style_max_distance_from_path
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static Rect
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PathExtentsToMaxStrokeExtents(const StrokeOptions &aStrokeOptions,
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const Rect &aRect,
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const Matrix &aTransform)
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{
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double styleExpansionFactor = 0.5f;
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if (aStrokeOptions.mLineCap == CapStyle::SQUARE) {
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styleExpansionFactor = M_SQRT1_2;
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}
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if (aStrokeOptions.mLineJoin == JoinStyle::MITER &&
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styleExpansionFactor < M_SQRT2 * aStrokeOptions.mMiterLimit) {
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styleExpansionFactor = M_SQRT2 * aStrokeOptions.mMiterLimit;
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}
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styleExpansionFactor *= aStrokeOptions.mLineWidth;
|
|
|
|
|
|
|
|
double dx = styleExpansionFactor * hypot(aTransform._11, aTransform._21);
|
|
|
|
double dy = styleExpansionFactor * hypot(aTransform._22, aTransform._12);
|
|
|
|
|
|
|
|
Rect result = aRect;
|
|
|
|
result.Inflate(dx, dy);
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2014-08-01 20:01:47 +04:00
|
|
|
class StrokeCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
StrokeCommand(const Path* aPath,
|
|
|
|
const Pattern& aPattern,
|
|
|
|
const StrokeOptions& aStrokeOptions,
|
|
|
|
const DrawOptions& aOptions)
|
|
|
|
: DrawingCommand(CommandType::STROKE)
|
|
|
|
, mPath(const_cast<Path*>(aPath))
|
|
|
|
, mPattern(aPattern)
|
|
|
|
, mStrokeOptions(aStrokeOptions)
|
|
|
|
, mOptions(aOptions)
|
|
|
|
{
|
2015-06-10 20:57:08 +03:00
|
|
|
if (aStrokeOptions.mDashLength) {
|
|
|
|
mDashes.resize(aStrokeOptions.mDashLength);
|
|
|
|
mStrokeOptions.mDashPattern = &mDashes.front();
|
|
|
|
memcpy(&mDashes.front(), aStrokeOptions.mDashPattern, mStrokeOptions.mDashLength * sizeof(Float));
|
|
|
|
}
|
2014-08-01 20:01:47 +04:00
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->Stroke(mPath, mPattern, mStrokeOptions, mOptions);
|
|
|
|
}
|
|
|
|
|
2015-06-10 20:57:08 +03:00
|
|
|
bool GetAffectedRect(Rect& aDeviceRect, const Matrix& aTransform)
|
|
|
|
{
|
|
|
|
aDeviceRect = PathExtentsToMaxStrokeExtents(mStrokeOptions, mPath->GetBounds(aTransform), aTransform);
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2014-08-01 20:01:47 +04:00
|
|
|
private:
|
|
|
|
RefPtr<Path> mPath;
|
|
|
|
StoredPattern mPattern;
|
|
|
|
StrokeOptions mStrokeOptions;
|
|
|
|
DrawOptions mOptions;
|
2015-06-10 20:57:08 +03:00
|
|
|
std::vector<Float> mDashes;
|
2014-08-01 20:01:47 +04:00
|
|
|
};
|
|
|
|
|
|
|
|
class FillGlyphsCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
FillGlyphsCommand(ScaledFont* aFont,
|
|
|
|
const GlyphBuffer& aBuffer,
|
|
|
|
const Pattern& aPattern,
|
|
|
|
const DrawOptions& aOptions,
|
|
|
|
const GlyphRenderingOptions* aRenderingOptions)
|
|
|
|
: DrawingCommand(CommandType::FILLGLYPHS)
|
|
|
|
, mFont(aFont)
|
|
|
|
, mPattern(aPattern)
|
|
|
|
, mOptions(aOptions)
|
|
|
|
, mRenderingOptions(const_cast<GlyphRenderingOptions*>(aRenderingOptions))
|
|
|
|
{
|
|
|
|
mGlyphs.resize(aBuffer.mNumGlyphs);
|
|
|
|
memcpy(&mGlyphs.front(), aBuffer.mGlyphs, sizeof(Glyph) * aBuffer.mNumGlyphs);
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
GlyphBuffer buf;
|
|
|
|
buf.mNumGlyphs = mGlyphs.size();
|
|
|
|
buf.mGlyphs = &mGlyphs.front();
|
|
|
|
aDT->FillGlyphs(mFont, buf, mPattern, mOptions, mRenderingOptions);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
RefPtr<ScaledFont> mFont;
|
|
|
|
std::vector<Glyph> mGlyphs;
|
|
|
|
StoredPattern mPattern;
|
|
|
|
DrawOptions mOptions;
|
|
|
|
RefPtr<GlyphRenderingOptions> mRenderingOptions;
|
|
|
|
};
|
|
|
|
|
|
|
|
class MaskCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
MaskCommand(const Pattern& aSource,
|
|
|
|
const Pattern& aMask,
|
|
|
|
const DrawOptions& aOptions)
|
|
|
|
: DrawingCommand(CommandType::MASK)
|
|
|
|
, mSource(aSource)
|
|
|
|
, mMask(aMask)
|
|
|
|
, mOptions(aOptions)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->Mask(mSource, mMask, mOptions);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
StoredPattern mSource;
|
|
|
|
StoredPattern mMask;
|
|
|
|
DrawOptions mOptions;
|
|
|
|
};
|
|
|
|
|
|
|
|
class MaskSurfaceCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
MaskSurfaceCommand(const Pattern& aSource,
|
|
|
|
const SourceSurface* aMask,
|
|
|
|
const Point& aOffset,
|
|
|
|
const DrawOptions& aOptions)
|
|
|
|
: DrawingCommand(CommandType::MASKSURFACE)
|
|
|
|
, mSource(aSource)
|
|
|
|
, mMask(const_cast<SourceSurface*>(aMask))
|
|
|
|
, mOffset(aOffset)
|
|
|
|
, mOptions(aOptions)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->MaskSurface(mSource, mMask, mOffset, mOptions);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
StoredPattern mSource;
|
|
|
|
RefPtr<SourceSurface> mMask;
|
|
|
|
Point mOffset;
|
|
|
|
DrawOptions mOptions;
|
|
|
|
};
|
|
|
|
|
|
|
|
class PushClipCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
2014-09-01 07:31:20 +04:00
|
|
|
explicit PushClipCommand(const Path* aPath)
|
2014-08-01 20:01:47 +04:00
|
|
|
: DrawingCommand(CommandType::PUSHCLIP)
|
|
|
|
, mPath(const_cast<Path*>(aPath))
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->PushClip(mPath);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
RefPtr<Path> mPath;
|
|
|
|
};
|
|
|
|
|
|
|
|
class PushClipRectCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
2014-09-01 07:31:20 +04:00
|
|
|
explicit PushClipRectCommand(const Rect& aRect)
|
2014-08-01 20:01:47 +04:00
|
|
|
: DrawingCommand(CommandType::PUSHCLIPRECT)
|
|
|
|
, mRect(aRect)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->PushClipRect(mRect);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
Rect mRect;
|
|
|
|
};
|
|
|
|
|
|
|
|
class PopClipCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
PopClipCommand()
|
|
|
|
: DrawingCommand(CommandType::POPCLIP)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
|
|
|
aDT->PopClip();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
class SetTransformCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
2014-09-01 07:31:20 +04:00
|
|
|
explicit SetTransformCommand(const Matrix& aTransform)
|
2014-08-01 20:01:47 +04:00
|
|
|
: DrawingCommand(CommandType::SETTRANSFORM)
|
|
|
|
, mTransform(aTransform)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2015-09-28 14:49:45 +03:00
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix* aMatrix)
|
2014-08-01 20:01:47 +04:00
|
|
|
{
|
2015-09-28 14:49:45 +03:00
|
|
|
if (aMatrix) {
|
|
|
|
aDT->SetTransform(mTransform * (*aMatrix));
|
|
|
|
} else {
|
|
|
|
aDT->SetTransform(mTransform);
|
|
|
|
}
|
2014-08-01 20:01:47 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
Matrix mTransform;
|
|
|
|
};
|
|
|
|
|
2015-06-10 20:57:08 +03:00
|
|
|
class FlushCommand : public DrawingCommand
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
explicit FlushCommand()
|
|
|
|
: DrawingCommand(CommandType::FLUSH)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
virtual void ExecuteOnDT(DrawTarget* aDT, const Matrix*)
|
|
|
|
{
|
|
|
|
aDT->Flush();
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2015-07-13 18:25:42 +03:00
|
|
|
} // namespace gfx
|
|
|
|
|
|
|
|
} // namespace mozilla
|
|
|
|
|
2014-08-01 20:01:47 +04:00
|
|
|
|
|
|
|
#endif /* MOZILLA_GFX_DRAWCOMMAND_H_ */
|