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comparison: gfx/layers/basic/BasicLayersImpl.h
gfx/layers/basic/BasicLayersImpl.h
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- TOR_BUG_3246
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| -1:000000000000 | 0:2461913c1f4d |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef GFX_BASICLAYERSIMPL_H | |
| 7 #define GFX_BASICLAYERSIMPL_H | |
| 8 | |
| 9 #include "BasicImplData.h" // for BasicImplData | |
| 10 #include "BasicLayers.h" // for BasicLayerManager | |
| 11 #include "ReadbackLayer.h" // for ReadbackLayer | |
| 12 #include "gfxContext.h" // for gfxContext, etc | |
| 13 #include "mozilla/Attributes.h" // for MOZ_DELETE, MOZ_STACK_CLASS | |
| 14 #include "mozilla/Maybe.h" // for Maybe | |
| 15 #include "nsAutoPtr.h" // for nsRefPtr | |
| 16 #include "nsDebug.h" // for NS_ASSERTION | |
| 17 #include "nsISupportsImpl.h" // for gfxContext::Release, etc | |
| 18 #include "nsRegion.h" // for nsIntRegion | |
| 19 | |
| 20 namespace mozilla { | |
| 21 namespace gfx { | |
| 22 class DrawTarget; | |
| 23 } | |
| 24 | |
| 25 namespace layers { | |
| 26 | |
| 27 class AutoMoz2DMaskData; | |
| 28 class BasicContainerLayer; | |
| 29 class Layer; | |
| 30 | |
| 31 class AutoSetOperator { | |
| 32 public: | |
| 33 AutoSetOperator(gfxContext* aContext, gfxContext::GraphicsOperator aOperator) { | |
| 34 if (aOperator != gfxContext::OPERATOR_OVER) { | |
| 35 aContext->SetOperator(aOperator); | |
| 36 mContext = aContext; | |
| 37 } | |
| 38 } | |
| 39 ~AutoSetOperator() { | |
| 40 if (mContext) { | |
| 41 mContext->SetOperator(gfxContext::OPERATOR_OVER); | |
| 42 } | |
| 43 } | |
| 44 private: | |
| 45 nsRefPtr<gfxContext> mContext; | |
| 46 }; | |
| 47 | |
| 48 class BasicReadbackLayer : public ReadbackLayer, | |
| 49 public BasicImplData | |
| 50 { | |
| 51 public: | |
| 52 BasicReadbackLayer(BasicLayerManager* aLayerManager) : | |
| 53 ReadbackLayer(aLayerManager, | |
| 54 static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST())) | |
| 55 { | |
| 56 MOZ_COUNT_CTOR(BasicReadbackLayer); | |
| 57 } | |
| 58 virtual ~BasicReadbackLayer() | |
| 59 { | |
| 60 MOZ_COUNT_DTOR(BasicReadbackLayer); | |
| 61 } | |
| 62 | |
| 63 virtual void SetVisibleRegion(const nsIntRegion& aRegion) | |
| 64 { | |
| 65 NS_ASSERTION(BasicManager()->InConstruction(), | |
| 66 "Can only set properties in construction phase"); | |
| 67 ReadbackLayer::SetVisibleRegion(aRegion); | |
| 68 } | |
| 69 | |
| 70 protected: | |
| 71 BasicLayerManager* BasicManager() | |
| 72 { | |
| 73 return static_cast<BasicLayerManager*>(mManager); | |
| 74 } | |
| 75 }; | |
| 76 | |
| 77 /* | |
| 78 * Extract a mask surface for a mask layer | |
| 79 * Returns true and through outparams a surface for the mask layer if | |
| 80 * a mask layer is present and has a valid surface and transform; | |
| 81 * false otherwise. | |
| 82 * The transform for the layer will be put in aMaskData | |
| 83 */ | |
| 84 bool | |
| 85 GetMaskData(Layer* aMaskLayer, | |
| 86 const gfx::Point& aDeviceOffset, | |
| 87 AutoMoz2DMaskData* aMaskData); | |
| 88 | |
| 89 // Paint the current source to a context using a mask, if present | |
| 90 void | |
| 91 PaintWithMask(gfxContext* aContext, float aOpacity, Layer* aMaskLayer); | |
| 92 | |
| 93 // Fill the rect with the source, using a mask and opacity, if present | |
| 94 void | |
| 95 FillRectWithMask(gfx::DrawTarget* aDT, | |
| 96 const gfx::Rect& aRect, | |
| 97 const gfx::Color& aColor, | |
| 98 const gfx::DrawOptions& aOptions, | |
| 99 gfx::SourceSurface* aMaskSource = nullptr, | |
| 100 const gfx::Matrix* aMaskTransform = nullptr); | |
| 101 void | |
| 102 FillRectWithMask(gfx::DrawTarget* aDT, | |
| 103 const gfx::Rect& aRect, | |
| 104 gfx::SourceSurface* aSurface, | |
| 105 gfx::Filter aFilter, | |
| 106 const gfx::DrawOptions& aOptions, | |
| 107 gfx::ExtendMode aExtendMode, | |
| 108 gfx::SourceSurface* aMaskSource = nullptr, | |
| 109 const gfx::Matrix* aMaskTransform = nullptr, | |
| 110 const gfx::Matrix* aSurfaceTransform = nullptr); | |
| 111 void | |
| 112 FillRectWithMask(gfx::DrawTarget* aDT, | |
| 113 const gfx::Point& aDeviceOffset, | |
| 114 const gfx::Rect& aRect, | |
| 115 gfx::SourceSurface* aSurface, | |
| 116 gfx::Filter aFilter, | |
| 117 const gfx::DrawOptions& aOptions, | |
| 118 Layer* aMaskLayer); | |
| 119 void | |
| 120 FillRectWithMask(gfx::DrawTarget* aDT, | |
| 121 const gfx::Point& aDeviceOffset, | |
| 122 const gfx::Rect& aRect, | |
| 123 const gfx::Color& aColor, | |
| 124 const gfx::DrawOptions& aOptions, | |
| 125 Layer* aMaskLayer); | |
| 126 | |
| 127 BasicImplData* | |
| 128 ToData(Layer* aLayer); | |
| 129 | |
| 130 /** | |
| 131 * Returns the operator to be used when blending and compositing this layer. | |
| 132 * Currently there is no way to specify both a blending and a compositing | |
| 133 * operator other than normal and source over respectively. | |
| 134 * | |
| 135 * If the layer has | |
| 136 * an effective blend mode operator other than normal, as returned by | |
| 137 * GetEffectiveMixBlendMode, this operator is used for blending, and source | |
| 138 * over is used for compositing. | |
| 139 * If the blend mode for this layer is normal, the compositing operator | |
| 140 * returned by GetOperator is used. | |
| 141 */ | |
| 142 gfx::CompositionOp | |
| 143 GetEffectiveOperator(Layer* aLayer); | |
| 144 | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 #endif |
