gfx/layers/ImageLayers.h@97036ab72558 (annotated)
gfx/layers/ImageLayers.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GFX_IMAGELAYER_H |
| michael@0 | 7 | #define GFX_IMAGELAYER_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "Layers.h" // for Layer, etc |
| michael@0 | 10 | #include "GraphicsFilter.h" // for GraphicsFilter |
| michael@0 | 11 | #include "mozilla/gfx/BaseSize.h" // for BaseSize |
| michael@0 | 12 | #include "mozilla/gfx/Point.h" // for IntSize |
| michael@0 | 13 | #include "mozilla/layers/LayersTypes.h" |
| michael@0 | 14 | #include "nsAutoPtr.h" // for nsRefPtr |
| michael@0 | 15 | #include "nscore.h" // for nsACString |
| michael@0 | 16 | |
| michael@0 | 17 | namespace mozilla { |
| michael@0 | 18 | namespace layers { |
| michael@0 | 19 | |
| michael@0 | 20 | class ImageContainer; |
| michael@0 | 21 | |
| michael@0 | 22 | /** |
| michael@0 | 23 | * A Layer which renders an Image. |
| michael@0 | 24 | */ |
| michael@0 | 25 | class ImageLayer : public Layer { |
| michael@0 | 26 | public: |
| michael@0 | 27 | /** |
| michael@0 | 28 | * CONSTRUCTION PHASE ONLY |
| michael@0 | 29 | * Set the ImageContainer. aContainer must have the same layer manager |
| michael@0 | 30 | * as this layer. |
| michael@0 | 31 | */ |
| michael@0 | 32 | virtual void SetContainer(ImageContainer* aContainer); |
| michael@0 | 33 | |
| michael@0 | 34 | /** |
| michael@0 | 35 | * CONSTRUCTION PHASE ONLY |
| michael@0 | 36 | * Set the filter used to resample this image if necessary. |
| michael@0 | 37 | */ |
| michael@0 | 38 | void SetFilter(GraphicsFilter aFilter) |
| michael@0 | 39 | { |
| michael@0 | 40 | if (mFilter != aFilter) { |
| michael@0 | 41 | MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) Filter", this)); |
| michael@0 | 42 | mFilter = aFilter; |
| michael@0 | 43 | Mutated(); |
| michael@0 | 44 | } |
| michael@0 | 45 | } |
| michael@0 | 46 | |
| michael@0 | 47 | /** |
| michael@0 | 48 | * CONSTRUCTION PHASE ONLY |
| michael@0 | 49 | * Set the size to scale the image to and the mode at which to scale. |
| michael@0 | 50 | */ |
| michael@0 | 51 | void SetScaleToSize(const gfx::IntSize &aSize, ScaleMode aMode) |
| michael@0 | 52 | { |
| michael@0 | 53 | if (mScaleToSize != aSize || mScaleMode != aMode) { |
| michael@0 | 54 | mScaleToSize = aSize; |
| michael@0 | 55 | mScaleMode = aMode; |
| michael@0 | 56 | Mutated(); |
| michael@0 | 57 | } |
| michael@0 | 58 | } |
| michael@0 | 59 | |
| michael@0 | 60 | |
| michael@0 | 61 | ImageContainer* GetContainer() { return mContainer; } |
| michael@0 | 62 | GraphicsFilter GetFilter() { return mFilter; } |
| michael@0 | 63 | const gfx::IntSize& GetScaleToSize() { return mScaleToSize; } |
| michael@0 | 64 | ScaleMode GetScaleMode() { return mScaleMode; } |
| michael@0 | 65 | |
| michael@0 | 66 | MOZ_LAYER_DECL_NAME("ImageLayer", TYPE_IMAGE) |
| michael@0 | 67 | |
| michael@0 | 68 | virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface); |
| michael@0 | 69 | |
| michael@0 | 70 | /** |
| michael@0 | 71 | * if true, the image will only be backed by a single tile texture |
| michael@0 | 72 | */ |
| michael@0 | 73 | void SetDisallowBigImage(bool aDisallowBigImage) |
| michael@0 | 74 | { |
| michael@0 | 75 | if (mDisallowBigImage != aDisallowBigImage) { |
| michael@0 | 76 | MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) DisallowBigImage", this)); |
| michael@0 | 77 | mDisallowBigImage = aDisallowBigImage; |
| michael@0 | 78 | Mutated(); |
| michael@0 | 79 | } |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | protected: |
| michael@0 | 83 | ImageLayer(LayerManager* aManager, void* aImplData); |
| michael@0 | 84 | ~ImageLayer(); |
| michael@0 | 85 | virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix); |
| michael@0 | 86 | |
| michael@0 | 87 | |
| michael@0 | 88 | nsRefPtr<ImageContainer> mContainer; |
| michael@0 | 89 | GraphicsFilter mFilter; |
| michael@0 | 90 | gfx::IntSize mScaleToSize; |
| michael@0 | 91 | ScaleMode mScaleMode; |
| michael@0 | 92 | bool mDisallowBigImage; |
| michael@0 | 93 | }; |
| michael@0 | 94 | |
| michael@0 | 95 | } |
| michael@0 | 96 | } |
| michael@0 | 97 | |
| michael@0 | 98 | #endif /* GFX_IMAGELAYER_H */ |
