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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_H_
#include <stdint.h>
#include "third_party/blink/renderer/platform/graphics/image_orientation_enum.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace gfx {
class SizeF;
}
namespace blink {
class AffineTransform;
enum RespectImageOrientationEnum : uint8_t {
kDoNotRespectImageOrientation = 0,
kRespectImageOrientation = 1
};
class PLATFORM_EXPORT ImageOrientation final {
DISALLOW_NEW();
public:
ImageOrientation(
ImageOrientationEnum orientation = ImageOrientationEnum::kDefault)
: orientation_(orientation) {}
bool UsesWidthAsHeight() const {
// Values 5 through 8 all flip the width/height.
return orientation_ >= ImageOrientationEnum::kOriginLeftTop;
}
// This transform can be used for drawing an image according to the
// orientation. It should be used in a right-handed coordinate system.
AffineTransform TransformFromDefault(const gfx::SizeF& drawn_size) const;
// This transform can be used to reverse an image orientation, it's for
// drawing an image according to the way it is encoded. It should be used in a
// right-handed coordinate system.
AffineTransform TransformToDefault(const gfx::SizeF& drawn_size) const;
inline bool operator==(const ImageOrientation& other) const {
return other.orientation_ == orientation_;
}
inline bool operator!=(const ImageOrientation& other) const {
return !(*this == other);
}
ImageOrientationEnum Orientation() const { return orientation_; }
private:
ImageOrientationEnum orientation_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_H_
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