chromium/ui/gfx/image/image.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// An Image wraps an image any flavor, be it platform-native GdkBitmap/NSImage,
// or a SkBitmap. This also provides easy conversion to other image types
// through operator overloading. It will cache the converted representations
// internally to prevent double-conversion.
//
// The lifetime of both the initial representation and any converted ones are
// tied to the lifetime of the Image's internal storage. To allow Images to be
// cheaply passed around by value, the actual image data is stored in a ref-
// counted member. When all Images referencing this storage are deleted, the
// actual representations are deleted, too.
//
// Images can be empty, in which case they have no backing representation.
// Attempting to use an empty Image will result in a crash.

#ifndef UI_GFX_IMAGE_IMAGE_H_
#define UI_GFX_IMAGE_IMAGE_H_

#include <stddef.h>

#include <memory>
#include <vector>

#include "base/containers/span.h"
#include "base/memory/scoped_policy.h"
#include "base/memory/scoped_refptr.h"
#include "build/build_config.h"
#include "ui/gfx/gfx_export.h"
#include "ui/gfx/native_widget_types.h"

#if BUILDFLAG(IS_MAC)
typedef struct CGColorSpace* CGColorSpaceRef;
#endif

class SkBitmap;

namespace base {
class RefCountedMemory;
}

namespace gfx {
struct ImagePNGRep;
class ImageSkia;
class Size;

namespace internal {
class ImageRep;
class ImageStorage;
}

class GFX_EXPORT Image { … };

}  // namespace gfx

#endif  // UI_GFX_IMAGE_IMAGE_H_