/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_PATTERN_H
#define GFX_PATTERN_H
#include "gfxTypes.h"
#include "gfxMatrix.h"
#include "mozilla/Alignment.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/PatternHelpers.h"
#include "nsISupportsImpl.h"
#include "nsTArray.h"
typedef struct _cairo_pattern cairo_pattern_t;
class gfxPattern final {
NS_INLINE_DECL_REFCOUNTING(gfxPattern)
public:
explicit gfxPattern(
const mozilla::gfx::DeviceColor& aColor);
// gradients
gfxPattern(gfxFloat x0, gfxFloat y0, gfxFloat x1, gfxFloat y1);
// linear
gfxPattern(gfxFloat cx0, gfxFloat cy0, gfxFloat radius0, gfxFloat cx1,
gfxFloat cy1, gfxFloat radius1);
// radial
gfxPattern(gfxFloat cx, gfxFloat cy, gfxFloat angle, gfxFloat startOffset,
gfxFloat endOffset);
// conic
gfxPattern(mozilla::gfx::SourceSurface* aSurface,
const mozilla::gfx::Matrix& aPatternToUserSpace);
void AddColorStop(gfxFloat offset,
const mozilla::gfx::DeviceColor& c);
void SetColorStops(mozilla::gfx::GradientStops* aStops);
// This should only be called on a cairo pattern that we want to use with
// Azure. We will read back the color stops from cairo and try to look
// them up in the cache.
void CacheColorStops(
const mozilla::gfx::DrawTarget* aDT);
void SetMatrix(
const gfxMatrix& matrix);
gfxMatrix GetMatrix()
const;
gfxMatrix GetInverseMatrix()
const;
/* Get an Azure Pattern for the current Cairo pattern. aPattern transform
* specifies the transform that was set on the DrawTarget when the pattern
* was set. When this is nullptr it is assumed the transform is identical
* to the current transform.
*/
mozilla::gfx::Pattern* GetPattern(
const mozilla::gfx::DrawTarget* aTarget,
const mozilla::gfx::Matrix* aOriginalUserToDevice = nullptr);
bool IsOpaque();
// clamp, repeat, reflect
void SetExtend(mozilla::gfx::ExtendMode aExtend);
void SetSamplingFilter(mozilla::gfx::SamplingFilter aSamplingFilter);
mozilla::gfx::SamplingFilter SamplingFilter()
const;
/* returns TRUE if it succeeded */
bool GetSolidColor(mozilla::gfx::DeviceColor& aColorOut);
private:
// Private destructor, to discourage deletion outside of Release():
~gfxPattern() =
default;
mozilla::gfx::GeneralPattern mGfxPattern;
RefPtr<mozilla::gfx::SourceSurface> mSourceSurface;
mozilla::gfx::Matrix mPatternToUserSpace;
RefPtr<mozilla::gfx::GradientStops> mStops;
nsTArray<mozilla::gfx::GradientStop> mStopsList;
mozilla::gfx::ExtendMode mExtend;
};
#endif /* GFX_PATTERN_H */
