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Side by Side Diff: third_party/WebKit/Source/platform/transforms/TransformationMatrix.h

Issue 2392653002: reflow comments in platform/{transforms,weborigin} (Closed)
Patch Set: Created 4 years, 2 months ago
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1 /* 1 /*
2 * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved. 2 * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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213 m_matrix[1][2] == 0 && m_matrix[1][3] == 0 && m_matrix[2][0] == 0 && 213 m_matrix[1][2] == 0 && m_matrix[1][3] == 0 && m_matrix[2][0] == 0 &&
214 m_matrix[2][1] == 0 && m_matrix[2][2] == 1 && m_matrix[2][3] == 0 && 214 m_matrix[2][1] == 0 && m_matrix[2][2] == 1 && m_matrix[2][3] == 0 &&
215 m_matrix[3][0] == 0 && m_matrix[3][1] == 0 && m_matrix[3][2] == 0 && 215 m_matrix[3][0] == 0 && m_matrix[3][1] == 0 && m_matrix[3][2] == 0 &&
216 m_matrix[3][3] == 1; 216 m_matrix[3][3] == 1;
217 } 217 }
218 218
219 // Map a 3D point through the transform, returning a 3D point. 219 // Map a 3D point through the transform, returning a 3D point.
220 FloatPoint3D mapPoint(const FloatPoint3D&) const; 220 FloatPoint3D mapPoint(const FloatPoint3D&) const;
221 221
222 // Map a 2D point through the transform, returning a 2D point. 222 // Map a 2D point through the transform, returning a 2D point.
223 // Note that this ignores the z component, effectively projecting the point in to the z=0 plane. 223 // Note that this ignores the z component, effectively projecting the point
224 // into the z=0 plane.
224 FloatPoint mapPoint(const FloatPoint&) const; 225 FloatPoint mapPoint(const FloatPoint&) const;
225 226
226 // If the matrix has 3D components, the z component of the result is 227 // If the matrix has 3D components, the z component of the result is
227 // dropped, effectively projecting the rect into the z=0 plane 228 // dropped, effectively projecting the rect into the z=0 plane
228 FloatRect mapRect(const FloatRect&) const; 229 FloatRect mapRect(const FloatRect&) const;
229 230
230 // Rounds the resulting mapped rectangle out. This is helpful for bounding 231 // Rounds the resulting mapped rectangle out. This is helpful for bounding
231 // box computations but may not be what is wanted in other contexts. 232 // box computations but may not be what is wanted in other contexts.
232 IntRect mapRect(const IntRect&) const; 233 IntRect mapRect(const IntRect&) const;
233 LayoutRect mapRect(const LayoutRect&) const; 234 LayoutRect mapRect(const LayoutRect&) const;
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360 return m13() == 0 && m14() == 0 && m23() == 0 && m24() == 0 && m31() == 0 && 361 return m13() == 0 && m14() == 0 && m23() == 0 && m24() == 0 && m31() == 0 &&
361 m32() == 0 && m33() == 1 && m34() == 0 && m43() == 0 && m44() == 1; 362 m32() == 0 && m33() == 1 && m34() == 0 && m43() == 0 && m44() == 1;
362 } 363 }
363 364
364 // Throw away the non-affine parts of the matrix (lossy!) 365 // Throw away the non-affine parts of the matrix (lossy!)
365 void makeAffine(); 366 void makeAffine();
366 367
367 AffineTransform toAffineTransform() const; 368 AffineTransform toAffineTransform() const;
368 369
369 // Flatten into a 2-D transformation (non-invertable). 370 // Flatten into a 2-D transformation (non-invertable).
370 // Same as gfx::Transform::FlattenTo2d(); see the docs for that function for d etails and discussion. 371 // Same as gfx::Transform::FlattenTo2d(); see the docs for that function for
372 // details and discussion.
371 void flattenTo2d(); 373 void flattenTo2d();
372 374
373 bool operator==(const TransformationMatrix& m2) const { 375 bool operator==(const TransformationMatrix& m2) const {
374 return m_matrix[0][0] == m2.m_matrix[0][0] && 376 return m_matrix[0][0] == m2.m_matrix[0][0] &&
375 m_matrix[0][1] == m2.m_matrix[0][1] && 377 m_matrix[0][1] == m2.m_matrix[0][1] &&
376 m_matrix[0][2] == m2.m_matrix[0][2] && 378 m_matrix[0][2] == m2.m_matrix[0][2] &&
377 m_matrix[0][3] == m2.m_matrix[0][3] && 379 m_matrix[0][3] == m2.m_matrix[0][3] &&
378 m_matrix[1][0] == m2.m_matrix[1][0] && 380 m_matrix[1][0] == m2.m_matrix[1][0] &&
379 m_matrix[1][1] == m2.m_matrix[1][1] && 381 m_matrix[1][1] == m2.m_matrix[1][1] &&
380 m_matrix[1][2] == m2.m_matrix[1][2] && 382 m_matrix[1][2] == m2.m_matrix[1][2] &&
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477 Matrix4 m_matrix; 479 Matrix4 m_matrix;
478 }; 480 };
479 481
480 // Redeclared here to avoid ODR issues. 482 // Redeclared here to avoid ODR issues.
481 // See platform/testing/TransformPrinters.h. 483 // See platform/testing/TransformPrinters.h.
482 void PrintTo(const TransformationMatrix&, std::ostream*); 484 void PrintTo(const TransformationMatrix&, std::ostream*);
483 485
484 } // namespace blink 486 } // namespace blink
485 487
486 #endif // TransformationMatrix_h 488 #endif // TransformationMatrix_h
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