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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GFX_GEOMETRY_DECOMPOSED_TRANSFORM_H_
#define UI_GFX_GEOMETRY_DECOMPOSED_TRANSFORM_H_
#include <array>
#include "base/component_export.h"
#include "base/dcheck_is_on.h"
#include "ui/gfx/geometry/quaternion.h"
namespace gfx {
// Contains the components of a factored transform. These components may be
// blended and recomposed.
struct COMPONENT_EXPORT(GEOMETRY) DecomposedTransform {
// The default constructor initializes the components in such a way that
// will compose the identity transform.
std::array<double, 3u> translate = {0, 0, 0};
std::array<double, 3u> scale = {1, 1, 1};
std::array<double, 3u> skew = {0, 0, 0};
std::array<double, 4u> perspective = {0, 0, 0, 1};
Quaternion quaternion;
std::string ToString() const;
};
// This is declared here for use in gtest-based unit tests but is defined in
// the //ui/gfx:test_support target. Depend on that to use this in your unit
// test. This should not be used in production code - call ToString() instead.
void PrintTo(const DecomposedTransform&, ::std::ostream* os);
} // namespace gfx
#endif // UI_GFX_GEOMETRY_DECOMPOSED_TRANSFORM_H_
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