зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
2.6 KiB
C++
76 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 20; 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 GFX_PATTERN_H
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#define GFX_PATTERN_H
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#include "gfxTypes.h"
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#include "gfxMatrix.h"
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#include "mozilla/Alignment.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/PatternHelpers.h"
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#include "nsISupportsImpl.h"
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#include "nsTArray.h"
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typedef struct _cairo_pattern cairo_pattern_t;
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class gfxPattern final {
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NS_INLINE_DECL_REFCOUNTING(gfxPattern)
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public:
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explicit gfxPattern(const mozilla::gfx::Color& aColor);
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// linear
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gfxPattern(gfxFloat x0, gfxFloat y0, gfxFloat x1, gfxFloat y1); // linear
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gfxPattern(gfxFloat cx0, gfxFloat cy0, gfxFloat radius0, gfxFloat cx1,
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gfxFloat cy1, gfxFloat radius1); // radial
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gfxPattern(mozilla::gfx::SourceSurface* aSurface,
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const mozilla::gfx::Matrix& aPatternToUserSpace);
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void AddColorStop(gfxFloat offset, const mozilla::gfx::Color& c);
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void SetColorStops(mozilla::gfx::GradientStops* aStops);
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// This should only be called on a cairo pattern that we want to use with
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// Azure. We will read back the color stops from cairo and try to look
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// them up in the cache.
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void CacheColorStops(const mozilla::gfx::DrawTarget* aDT);
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void SetMatrix(const gfxMatrix& matrix);
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gfxMatrix GetMatrix() const;
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gfxMatrix GetInverseMatrix() const;
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/* Get an Azure Pattern for the current Cairo pattern. aPattern transform
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* specifies the transform that was set on the DrawTarget when the pattern
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* was set. When this is nullptr it is assumed the transform is identical
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* to the current transform.
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*/
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mozilla::gfx::Pattern* GetPattern(
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const mozilla::gfx::DrawTarget* aTarget,
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const mozilla::gfx::Matrix* aOriginalUserToDevice = nullptr);
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bool IsOpaque();
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// clamp, repeat, reflect
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void SetExtend(mozilla::gfx::ExtendMode aExtend);
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void SetSamplingFilter(mozilla::gfx::SamplingFilter aSamplingFilter);
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mozilla::gfx::SamplingFilter SamplingFilter() const;
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/* returns TRUE if it succeeded */
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bool GetSolidColor(mozilla::gfx::Color& aColorOut);
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private:
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// Private destructor, to discourage deletion outside of Release():
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~gfxPattern() {}
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mozilla::gfx::GeneralPattern mGfxPattern;
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RefPtr<mozilla::gfx::SourceSurface> mSourceSurface;
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mozilla::gfx::Matrix mPatternToUserSpace;
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RefPtr<mozilla::gfx::GradientStops> mStops;
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nsTArray<mozilla::gfx::GradientStop> mStopsList;
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mozilla::gfx::ExtendMode mExtend;
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};
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#endif /* GFX_PATTERN_H */
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