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comparison: gfx/layers/ImageLayers.h
gfx/layers/ImageLayers.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:bedbc86da611 |
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| 1 /* -*- Mode: C++; tab-width: 20; 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_IMAGELAYER_H | |
| 7 #define GFX_IMAGELAYER_H | |
| 8 | |
| 9 #include "Layers.h" // for Layer, etc | |
| 10 #include "GraphicsFilter.h" // for GraphicsFilter | |
| 11 #include "mozilla/gfx/BaseSize.h" // for BaseSize | |
| 12 #include "mozilla/gfx/Point.h" // for IntSize | |
| 13 #include "mozilla/layers/LayersTypes.h" | |
| 14 #include "nsAutoPtr.h" // for nsRefPtr | |
| 15 #include "nscore.h" // for nsACString | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace layers { | |
| 19 | |
| 20 class ImageContainer; | |
| 21 | |
| 22 /** | |
| 23 * A Layer which renders an Image. | |
| 24 */ | |
| 25 class ImageLayer : public Layer { | |
| 26 public: | |
| 27 /** | |
| 28 * CONSTRUCTION PHASE ONLY | |
| 29 * Set the ImageContainer. aContainer must have the same layer manager | |
| 30 * as this layer. | |
| 31 */ | |
| 32 virtual void SetContainer(ImageContainer* aContainer); | |
| 33 | |
| 34 /** | |
| 35 * CONSTRUCTION PHASE ONLY | |
| 36 * Set the filter used to resample this image if necessary. | |
| 37 */ | |
| 38 void SetFilter(GraphicsFilter aFilter) | |
| 39 { | |
| 40 if (mFilter != aFilter) { | |
| 41 MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) Filter", this)); | |
| 42 mFilter = aFilter; | |
| 43 Mutated(); | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 /** | |
| 48 * CONSTRUCTION PHASE ONLY | |
| 49 * Set the size to scale the image to and the mode at which to scale. | |
| 50 */ | |
| 51 void SetScaleToSize(const gfx::IntSize &aSize, ScaleMode aMode) | |
| 52 { | |
| 53 if (mScaleToSize != aSize || mScaleMode != aMode) { | |
| 54 mScaleToSize = aSize; | |
| 55 mScaleMode = aMode; | |
| 56 Mutated(); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 | |
| 61 ImageContainer* GetContainer() { return mContainer; } | |
| 62 GraphicsFilter GetFilter() { return mFilter; } | |
| 63 const gfx::IntSize& GetScaleToSize() { return mScaleToSize; } | |
| 64 ScaleMode GetScaleMode() { return mScaleMode; } | |
| 65 | |
| 66 MOZ_LAYER_DECL_NAME("ImageLayer", TYPE_IMAGE) | |
| 67 | |
| 68 virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface); | |
| 69 | |
| 70 /** | |
| 71 * if true, the image will only be backed by a single tile texture | |
| 72 */ | |
| 73 void SetDisallowBigImage(bool aDisallowBigImage) | |
| 74 { | |
| 75 if (mDisallowBigImage != aDisallowBigImage) { | |
| 76 MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) DisallowBigImage", this)); | |
| 77 mDisallowBigImage = aDisallowBigImage; | |
| 78 Mutated(); | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 protected: | |
| 83 ImageLayer(LayerManager* aManager, void* aImplData); | |
| 84 ~ImageLayer(); | |
| 85 virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix); | |
| 86 | |
| 87 | |
| 88 nsRefPtr<ImageContainer> mContainer; | |
| 89 GraphicsFilter mFilter; | |
| 90 gfx::IntSize mScaleToSize; | |
| 91 ScaleMode mScaleMode; | |
| 92 bool mDisallowBigImage; | |
| 93 }; | |
| 94 | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 #endif /* GFX_IMAGELAYER_H */ |
