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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 #ifndef UI_GFX_TRANSFORM_H_ | 5 #ifndef UI_GFX_TRANSFORM_H_ |
| 6 #define UI_GFX_TRANSFORM_H_ | 6 #define UI_GFX_TRANSFORM_H_ |
| 7 | 7 |
| 8 #include <iosfwd> | 8 #include <iosfwd> |
| 9 #include <string> | 9 #include <string> |
| 10 | 10 |
| 11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
| 12 #include "third_party/skia/include/utils/SkMatrix44.h" | 12 #include "third_party/skia/include/core/SkMatrix44.h" |
| 13 #include "ui/gfx/gfx_export.h" | 13 #include "ui/gfx/gfx_export.h" |
| 14 #include "ui/gfx/vector2d_f.h" | 14 #include "ui/gfx/vector2d_f.h" |
| 15 | 15 |
| 16 namespace gfx { | 16 namespace gfx { |
| 17 | 17 |
| 18 class BoxF; | 18 class BoxF; |
| 19 class RectF; | 19 class RectF; |
| 20 class Point; | 20 class Point; |
| 21 class Point3F; | 21 class Point3F; |
| 22 class Vector3dF; | 22 class Vector3dF; |
| 23 | 23 |
| 24 // 4x4 transformation matrix. Transform is cheap and explicitly allows | 24 // 4x4 transformation matrix. Transform is cheap and explicitly allows |
| 25 // copy/assign. | 25 // copy/assign. |
| 26 class GFX_EXPORT Transform { | 26 class GFX_EXPORT Transform { |
| 27 public: | 27 public: |
| 28 | 28 enum SkipInitialization { kSkipInitialization }; |
| 29 enum SkipInitialization { | |
| 30 kSkipInitialization | |
| 31 }; | |
| 32 | 29 |
| 33 Transform() : matrix_(SkMatrix44::kIdentity_Constructor) {} | 30 Transform() : matrix_(SkMatrix44::kIdentity_Constructor) {} |
| 34 | 31 |
| 35 // Skips initializing this matrix to avoid overhead, when we know it will be | 32 // Skips initializing this matrix to avoid overhead, when we know it will be |
| 36 // initialized before use. | 33 // initialized before use. |
| 37 Transform(SkipInitialization) | 34 Transform(SkipInitialization) |
| 38 : matrix_(SkMatrix44::kUninitialized_Constructor) {} | 35 : matrix_(SkMatrix44::kUninitialized_Constructor) {} |
| 39 Transform(const Transform& rhs) : matrix_(rhs.matrix_) {} | 36 Transform(const Transform& rhs) : matrix_(rhs.matrix_) {} |
| 40 // Initialize with the concatenation of lhs * rhs. | 37 // Initialize with the concatenation of lhs * rhs. |
| 41 Transform(const Transform& lhs, const Transform& rhs) | 38 Transform(const Transform& lhs, const Transform& rhs) |
| (...skipping 212 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 254 return *this; | 251 return *this; |
| 255 } | 252 } |
| 256 | 253 |
| 257 // Returns the underlying matrix. | 254 // Returns the underlying matrix. |
| 258 const SkMatrix44& matrix() const { return matrix_; } | 255 const SkMatrix44& matrix() const { return matrix_; } |
| 259 SkMatrix44& matrix() { return matrix_; } | 256 SkMatrix44& matrix() { return matrix_; } |
| 260 | 257 |
| 261 std::string ToString() const; | 258 std::string ToString() const; |
| 262 | 259 |
| 263 private: | 260 private: |
| 264 void TransformPointInternal(const SkMatrix44& xform, | 261 void TransformPointInternal(const SkMatrix44& xform, Point* point) const; |
| 265 Point* point) const; | |
| 266 | 262 |
| 267 void TransformPointInternal(const SkMatrix44& xform, | 263 void TransformPointInternal(const SkMatrix44& xform, Point3F* point) const; |
| 268 Point3F* point) const; | |
| 269 | 264 |
| 270 SkMatrix44 matrix_; | 265 SkMatrix44 matrix_; |
| 271 | 266 |
| 272 // copy/assign are allowed. | 267 // copy/assign are allowed. |
| 273 }; | 268 }; |
| 274 | 269 |
| 275 // This is declared here for use in gtest-based unit tests but is defined in | 270 // This is declared here for use in gtest-based unit tests but is defined in |
| 276 // the gfx_test_support target. Depend on that to use this in your unit test. | 271 // the gfx_test_support target. Depend on that to use this in your unit test. |
| 277 // This should not be used in production code - call ToString() instead. | 272 // This should not be used in production code - call ToString() instead. |
| 278 void PrintTo(const Transform& transform, ::std::ostream* os); | 273 void PrintTo(const Transform& transform, ::std::ostream* os); |
| 279 | 274 |
| 280 } // namespace gfx | 275 } // namespace gfx |
| 281 | 276 |
| 282 #endif // UI_GFX_TRANSFORM_H_ | 277 #endif // UI_GFX_TRANSFORM_H_ |
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