1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/ImageLayers.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,98 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_IMAGELAYER_H
1.10 +#define GFX_IMAGELAYER_H
1.11 +
1.12 +#include "Layers.h" // for Layer, etc
1.13 +#include "GraphicsFilter.h" // for GraphicsFilter
1.14 +#include "mozilla/gfx/BaseSize.h" // for BaseSize
1.15 +#include "mozilla/gfx/Point.h" // for IntSize
1.16 +#include "mozilla/layers/LayersTypes.h"
1.17 +#include "nsAutoPtr.h" // for nsRefPtr
1.18 +#include "nscore.h" // for nsACString
1.19 +
1.20 +namespace mozilla {
1.21 +namespace layers {
1.22 +
1.23 +class ImageContainer;
1.24 +
1.25 +/**
1.26 + * A Layer which renders an Image.
1.27 + */
1.28 +class ImageLayer : public Layer {
1.29 +public:
1.30 + /**
1.31 + * CONSTRUCTION PHASE ONLY
1.32 + * Set the ImageContainer. aContainer must have the same layer manager
1.33 + * as this layer.
1.34 + */
1.35 + virtual void SetContainer(ImageContainer* aContainer);
1.36 +
1.37 + /**
1.38 + * CONSTRUCTION PHASE ONLY
1.39 + * Set the filter used to resample this image if necessary.
1.40 + */
1.41 + void SetFilter(GraphicsFilter aFilter)
1.42 + {
1.43 + if (mFilter != aFilter) {
1.44 + MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) Filter", this));
1.45 + mFilter = aFilter;
1.46 + Mutated();
1.47 + }
1.48 + }
1.49 +
1.50 + /**
1.51 + * CONSTRUCTION PHASE ONLY
1.52 + * Set the size to scale the image to and the mode at which to scale.
1.53 + */
1.54 + void SetScaleToSize(const gfx::IntSize &aSize, ScaleMode aMode)
1.55 + {
1.56 + if (mScaleToSize != aSize || mScaleMode != aMode) {
1.57 + mScaleToSize = aSize;
1.58 + mScaleMode = aMode;
1.59 + Mutated();
1.60 + }
1.61 + }
1.62 +
1.63 +
1.64 + ImageContainer* GetContainer() { return mContainer; }
1.65 + GraphicsFilter GetFilter() { return mFilter; }
1.66 + const gfx::IntSize& GetScaleToSize() { return mScaleToSize; }
1.67 + ScaleMode GetScaleMode() { return mScaleMode; }
1.68 +
1.69 + MOZ_LAYER_DECL_NAME("ImageLayer", TYPE_IMAGE)
1.70 +
1.71 + virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface);
1.72 +
1.73 + /**
1.74 + * if true, the image will only be backed by a single tile texture
1.75 + */
1.76 + void SetDisallowBigImage(bool aDisallowBigImage)
1.77 + {
1.78 + if (mDisallowBigImage != aDisallowBigImage) {
1.79 + MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) DisallowBigImage", this));
1.80 + mDisallowBigImage = aDisallowBigImage;
1.81 + Mutated();
1.82 + }
1.83 + }
1.84 +
1.85 +protected:
1.86 + ImageLayer(LayerManager* aManager, void* aImplData);
1.87 + ~ImageLayer();
1.88 + virtual nsACString& PrintInfo(nsACString& aTo, const char* aPrefix);
1.89 +
1.90 +
1.91 + nsRefPtr<ImageContainer> mContainer;
1.92 + GraphicsFilter mFilter;
1.93 + gfx::IntSize mScaleToSize;
1.94 + ScaleMode mScaleMode;
1.95 + bool mDisallowBigImage;
1.96 +};
1.97 +
1.98 +}
1.99 +}
1.100 +
1.101 +#endif /* GFX_IMAGELAYER_H */
