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Unified Diff: ui/gfx/image/image_skia.h

Issue 854713003: More old files deletion. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Fix tryjobs? Created 5 years, 11 months ago
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Index: ui/gfx/image/image_skia.h
diff --git a/ui/gfx/image/image_skia.h b/ui/gfx/image/image_skia.h
deleted file mode 100644
index fa5d070ad9bdc31e17f10371dfb9d4c2dd7bb052..0000000000000000000000000000000000000000
--- a/ui/gfx/image/image_skia.h
+++ /dev/null
@@ -1,175 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_GFX_IMAGE_IMAGE_SKIA_H_
-#define UI_GFX_IMAGE_IMAGE_SKIA_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/gfx/gfx_export.h"
-#include "ui/gfx/image/image_skia_rep.h"
-
-namespace gfx {
-class ImageSkiaSource;
-class Size;
-
-namespace internal {
-class ImageSkiaStorage;
-} // namespace internal
-
-namespace test {
-class TestOnThread;
-}
-
-// Container for the same image at different densities, similar to NSImage.
-// Image height and width are in DIP (Density Indepent Pixel) coordinates.
-//
-// ImageSkia should be used whenever possible instead of SkBitmap.
-// Functions that mutate the image should operate on the gfx::ImageSkiaRep
-// returned from ImageSkia::GetRepresentation, not on ImageSkia.
-//
-// ImageSkia is cheap to copy and intentionally supports copy semantics.
-class GFX_EXPORT ImageSkia {
- public:
- typedef std::vector<ImageSkiaRep> ImageSkiaReps;
-
- // Creates an instance with no bitmaps.
- ImageSkia();
-
- // Creates an instance that will use the |source| to get the image
- // for scale factors. |size| specifes the size of the image in DIP.
- // ImageSkia owns |source|.
- ImageSkia(ImageSkiaSource* source, const gfx::Size& size);
-
- // Creates an instance that uses the |source|. The constructor loads the image
- // at |scale| and uses its dimensions to calculate the size in DIP. ImageSkia
- // owns |source|.
- ImageSkia(ImageSkiaSource* source, float scale);
-
- explicit ImageSkia(const gfx::ImageSkiaRep& image_rep);
-
- // Copies a reference to |other|'s storage.
- ImageSkia(const ImageSkia& other);
-
- // Copies a reference to |other|'s storage.
- ImageSkia& operator=(const ImageSkia& other);
-
- ~ImageSkia();
-
- // Changes the value of GetSupportedScales() to |scales|.
- static void SetSupportedScales(const std::vector<float>& scales);
-
- // Returns a vector with the scale factors which are supported by this
- // platform, in ascending order.
- static const std::vector<float>& GetSupportedScales();
-
- // Returns the maximum scale supported by this platform.
- static float GetMaxSupportedScale();
-
- // Creates an image from the passed in bitmap.
- // DIP width and height are based on scale factor of 1x.
- // Adds ref to passed in bitmap.
- // WARNING: The resulting image will be pixelated when painted on a high
- // density display.
- static ImageSkia CreateFrom1xBitmap(const SkBitmap& bitmap);
-
- // Returns a deep copy of this ImageSkia which has its own storage with
- // the ImageSkiaRep instances that this ImageSkia currently has.
- // This can be safely passed to and manipulated by another thread.
- // Note that this does NOT generate ImageSkiaReps from its source.
- // If you want to create a deep copy with ImageSkiaReps for supported
- // scale factors, you need to explicitly call
- // |EnsureRepsForSupportedScales()| first.
- scoped_ptr<ImageSkia> DeepCopy() const;
-
- // Returns true if this object is backed by the same ImageSkiaStorage as
- // |other|. Will also return true if both images are isNull().
- bool BackedBySameObjectAs(const gfx::ImageSkia& other) const;
-
- // Adds |image_rep| to the image reps contained by this object.
- void AddRepresentation(const gfx::ImageSkiaRep& image_rep);
-
- // Removes the image rep of |scale| if present.
- void RemoveRepresentation(float scale);
-
- // Returns true if the object owns an image rep whose density matches
- // |scale| exactly.
- bool HasRepresentation(float scale) const;
-
- // Returns the image rep whose density best matches |scale|.
- // Returns a null image rep if the object contains no image reps.
- const gfx::ImageSkiaRep& GetRepresentation(float scale) const;
-
- // Make the ImageSkia instance read-only. Note that this only prevent
- // modification from client code, and the storage may still be
- // modified by the source if any (thus, it's not thread safe). This
- // detaches the storage from currently accessing thread, so its safe
- // to pass it to other thread as long as it is accessed only by that
- // thread. If this ImageSkia's storage will be accessed by multiple
- // threads, use |MakeThreadSafe()| method.
- void SetReadOnly();
-
- // Make the image thread safe by making the storage read only and remove
- // its source if any. All ImageSkia that shares the same storage will also
- // become thread safe. Note that in order to make it 100% thread safe,
- // this must be called before it's been passed to anther thread.
- void MakeThreadSafe();
- bool IsThreadSafe() const;
-
- // Returns true if this is a null object.
- bool isNull() const { return storage_.get() == NULL; }
-
- // Width and height of image in DIP coordinate system.
- int width() const;
- int height() const;
- gfx::Size size() const;
-
- // Returns pointer to 1x bitmap contained by this object. If there is no 1x
- // bitmap, the bitmap whose scale factor is closest to 1x is returned.
- // This function should only be used in unittests and on platforms which do
- // not support scale factors other than 1x.
- // TODO(pkotwicz): Return null SkBitmap when the object has no 1x bitmap.
- const SkBitmap* bitmap() const { return &GetBitmap(); }
-
- // Returns a vector with the image reps contained in this object.
- // There is no guarantee that this will return all images rep for
- // supported scale factors.
- std::vector<gfx::ImageSkiaRep> image_reps() const;
-
- // When the source is available, generates all ImageReps for
- // supported scale factors. This method is defined as const as
- // the state change in the storage is agnostic to the caller.
- void EnsureRepsForSupportedScales() const;
-
- private:
- friend class test::TestOnThread;
- FRIEND_TEST_ALL_PREFIXES(ImageSkiaTest, EmptyOnThreadTest);
- FRIEND_TEST_ALL_PREFIXES(ImageSkiaTest, StaticOnThreadTest);
- FRIEND_TEST_ALL_PREFIXES(ImageSkiaTest, SourceOnThreadTest);
-
- // Initialize ImageSkiaStorage with passed in parameters.
- // If the image rep's bitmap is empty, ImageStorage is set to NULL.
- void Init(const gfx::ImageSkiaRep& image_rep);
-
- SkBitmap& GetBitmap() const;
-
- // Checks if the current thread can read/modify the ImageSkia.
- bool CanRead() const;
- bool CanModify() const;
-
- // Detach the storage from the currently assinged thread
- // so that other thread can access the storage.
- void DetachStorageFromThread();
-
- // A refptr so that ImageRepSkia can be copied cheaply.
- scoped_refptr<internal::ImageSkiaStorage> storage_;
-};
-
-} // namespace gfx
-
-#endif // UI_GFX_IMAGE_IMAGE_SKIA_H_
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