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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // An Image wraps an image any flavor, be it platform-native GdkBitmap/NSImage, | 5 // An Image wraps an image any flavor, be it platform-native GdkBitmap/NSImage, |
| 6 // or a SkBitmap. This also provides easy conversion to other image types | 6 // or a SkBitmap. This also provides easy conversion to other image types |
| 7 // through operator overloading. It will cache the converted representations | 7 // through operator overloading. It will cache the converted representations |
| 8 // internally to prevent double-conversion. | 8 // internally to prevent double-conversion. |
| 9 // | 9 // |
| 10 // The lifetime of both the initial representation and any converted ones are | 10 // The lifetime of both the initial representation and any converted ones are |
| 11 // tied to the lifetime of the Image's internal storage. To allow Images to be | 11 // tied to the lifetime of the Image's internal storage. To allow Images to be |
| 12 // cheaply passed around by value, the actual image data is stored in a ref- | 12 // cheaply passed around by value, the actual image data is stored in a ref- |
| 13 // counted member. When all Images referencing this storage are deleted, the | 13 // counted member. When all Images referencing this storage are deleted, the |
| 14 // actual representations are deleted, too. | 14 // actual representations are deleted, too. |
| 15 // | 15 // |
| 16 // Images can be empty, in which case they have no backing representation. | 16 // Images can be empty, in which case they have no backing representation. |
| 17 // Attempting to use an empty Image will result in a crash. | 17 // Attempting to use an empty Image will result in a crash. |
| 18 | 18 |
| 19 #ifndef UI_GFX_IMAGE_IMAGE_H_ | 19 #ifndef UI_GFX_IMAGE_IMAGE_H_ |
| 20 #define UI_GFX_IMAGE_IMAGE_H_ | 20 #define UI_GFX_IMAGE_IMAGE_H_ |
| 21 | 21 |
| 22 #include <map> | 22 #include <map> |
| 23 #include <vector> | 23 #include <vector> |
| 24 | 24 |
| 25 #include "base/basictypes.h" | 25 #include "base/basictypes.h" |
| 26 #include "base/gtest_prod_util.h" | 26 #include "base/gtest_prod_util.h" |
| 27 #include "base/memory/ref_counted_memory.h" | 27 #include "base/memory/ref_counted_memory.h" |
| 28 #include "base/memory/scoped_ptr.h" |
| 28 #include "ui/gfx/gfx_export.h" | 29 #include "ui/gfx/gfx_export.h" |
| 29 #include "ui/gfx/native_widget_types.h" | 30 #include "ui/gfx/native_widget_types.h" |
| 30 | 31 |
| 31 #if defined(OS_MACOSX) && !defined(OS_IOS) | 32 #if defined(OS_MACOSX) && !defined(OS_IOS) |
| 32 typedef struct CGColorSpace* CGColorSpaceRef; | 33 typedef struct CGColorSpace* CGColorSpaceRef; |
| 33 #endif | 34 #endif |
| 34 | 35 |
| 35 class SkBitmap; | 36 class SkBitmap; |
| 36 | 37 |
| 37 namespace { | 38 namespace { |
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| 179 private: | 180 private: |
| 180 // Returns the type of the default representation. | 181 // Returns the type of the default representation. |
| 181 RepresentationType DefaultRepresentationType() const; | 182 RepresentationType DefaultRepresentationType() const; |
| 182 | 183 |
| 183 // Returns the ImageRep of the appropriate type or NULL if there is no | 184 // Returns the ImageRep of the appropriate type or NULL if there is no |
| 184 // representation of that type (and must_exist is false). | 185 // representation of that type (and must_exist is false). |
| 185 internal::ImageRep* GetRepresentation( | 186 internal::ImageRep* GetRepresentation( |
| 186 RepresentationType rep_type, bool must_exist) const; | 187 RepresentationType rep_type, bool must_exist) const; |
| 187 | 188 |
| 188 // Stores a representation into the map. | 189 // Stores a representation into the map. |
| 189 void AddRepresentation(internal::ImageRep* rep) const; | 190 void AddRepresentation(scoped_ptr<internal::ImageRep> rep) const; |
| 190 | 191 |
| 191 // Internal class that holds all the representations. This allows the Image to | 192 // Internal class that holds all the representations. This allows the Image to |
| 192 // be cheaply copied. | 193 // be cheaply copied. |
| 193 scoped_refptr<internal::ImageStorage> storage_; | 194 scoped_refptr<internal::ImageStorage> storage_; |
| 194 | 195 |
| 195 friend class ::ImageTest; | 196 friend class ::ImageTest; |
| 196 friend class ::ImageMacTest; | 197 friend class ::ImageMacTest; |
| 197 }; | 198 }; |
| 198 | 199 |
| 199 } // namespace gfx | 200 } // namespace gfx |
| 200 | 201 |
| 201 #endif // UI_GFX_IMAGE_IMAGE_H_ | 202 #endif // UI_GFX_IMAGE_IMAGE_H_ |
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