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-rw-r--r--gfx/layers/ImageLayers.h94
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diff --git a/gfx/layers/ImageLayers.h b/gfx/layers/ImageLayers.h
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+/* -*- 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_IMAGELAYER_H
+#define GFX_IMAGELAYER_H
+
+#include "Layers.h" // for Layer, etc
+#include "mozilla/gfx/BaseSize.h" // for BaseSize
+#include "mozilla/gfx/Point.h" // for IntSize
+#include "mozilla/layers/LayersTypes.h"
+#include "nsAutoPtr.h" // for nsRefPtr
+#include "nscore.h" // for nsACString
+
+namespace mozilla {
+namespace layers {
+
+class ImageContainer;
+
+namespace layerscope {
+class LayersPacket;
+} // namespace layerscope
+
+/**
+ * A Layer which renders an Image.
+ */
+class ImageLayer : public Layer {
+public:
+ /**
+ * CONSTRUCTION PHASE ONLY
+ * Set the ImageContainer. aContainer must have the same layer manager
+ * as this layer.
+ */
+ virtual void SetContainer(ImageContainer* aContainer);
+
+ /**
+ * CONSTRUCTION PHASE ONLY
+ * Set the filter used to resample this image if necessary.
+ */
+ void SetSamplingFilter(gfx::SamplingFilter aSamplingFilter)
+ {
+ if (mSamplingFilter != aSamplingFilter) {
+ MOZ_LAYERS_LOG_IF_SHADOWABLE(this, ("Layer::Mutated(%p) Filter", this));
+ mSamplingFilter = aSamplingFilter;
+ Mutated();
+ }
+ }
+
+ /**
+ * CONSTRUCTION PHASE ONLY
+ * Set the size to scale the image to and the mode at which to scale.
+ */
+ void SetScaleToSize(const gfx::IntSize &aSize, ScaleMode aMode)
+ {
+ if (mScaleToSize != aSize || mScaleMode != aMode) {
+ mScaleToSize = aSize;
+ mScaleMode = aMode;
+ Mutated();
+ }
+ }
+
+
+ ImageContainer* GetContainer() { return mContainer; }
+ gfx::SamplingFilter GetSamplingFilter() { return mSamplingFilter; }
+ const gfx::IntSize& GetScaleToSize() { return mScaleToSize; }
+ ScaleMode GetScaleMode() { return mScaleMode; }
+
+ MOZ_LAYER_DECL_NAME("ImageLayer", TYPE_IMAGE)
+
+ virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) override;
+
+ virtual const gfx::Matrix4x4& GetEffectiveTransformForBuffer() const override
+ {
+ return mEffectiveTransformForBuffer;
+ }
+
+protected:
+ ImageLayer(LayerManager* aManager, void* aImplData);
+ ~ImageLayer();
+ virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
+ virtual void DumpPacket(layerscope::LayersPacket* aPacket, const void* aParent) override;
+
+ RefPtr<ImageContainer> mContainer;
+ gfx::SamplingFilter mSamplingFilter;
+ gfx::IntSize mScaleToSize;
+ ScaleMode mScaleMode;
+ gfx::Matrix4x4 mEffectiveTransformForBuffer;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif /* GFX_IMAGELAYER_H */