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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #ifndef SkRect_DEFINED | 10 #ifndef SkRect_DEFINED |
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93 * This is a specific "truncation" of the average, which is different than | 93 * This is a specific "truncation" of the average, which is different than |
94 * (bottom + top) / 2 when the sum is negative. | 94 * (bottom + top) / 2 when the sum is negative. |
95 */ | 95 */ |
96 int centerY() const { return (fBottom + fTop) >> 1; } | 96 int centerY() const { return (fBottom + fTop) >> 1; } |
97 | 97 |
98 /** | 98 /** |
99 * Return true if the rectangle's width or height are <= 0 | 99 * Return true if the rectangle's width or height are <= 0 |
100 */ | 100 */ |
101 bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; } | 101 bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; } |
102 | 102 |
103 bool isInverted() const { return fLeft > fRight || fTop > fBottom; } | |
104 | |
105 bool isValid() const { | |
reed1
2013/09/04 18:49:36
Is this the same as
return this->width() >= 0 &&
reed1
2013/09/04 18:49:36
Suggest we move this into SkValidatingUtils.h
sugoi1
2013/09/04 20:14:52
Done.
sugoi1
2013/09/04 20:14:52
Hmmm... I'm not sure. In the case of width(), for
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106 return !isInverted() && | |
107 // Make sure width() and height() are also valid | |
108 ((fLeft >= 0) || (fRight <= 0) || ((fRight - SK_MaxS32) <= fLeft) ) && | |
109 ((fTop >= 0) || (fBottom <= 0) || ((fBottom - SK_MaxS32) <= fTop) ); | |
110 } | |
111 | |
103 bool isLargest() const { return SK_MinS32 == fLeft && | 112 bool isLargest() const { return SK_MinS32 == fLeft && |
104 SK_MinS32 == fTop && | 113 SK_MinS32 == fTop && |
105 SK_MaxS32 == fRight && | 114 SK_MaxS32 == fRight && |
106 SK_MaxS32 == fBottom; } | 115 SK_MaxS32 == fBottom; } |
107 | 116 |
108 friend bool operator==(const SkIRect& a, const SkIRect& b) { | 117 friend bool operator==(const SkIRect& a, const SkIRect& b) { |
109 return !memcmp(&a, &b, sizeof(a)); | 118 return !memcmp(&a, &b, sizeof(a)); |
110 } | 119 } |
111 | 120 |
112 friend bool operator!=(const SkIRect& a, const SkIRect& b) { | 121 friend bool operator!=(const SkIRect& a, const SkIRect& b) { |
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412 SkIntToScalar(irect.fRight), | 421 SkIntToScalar(irect.fRight), |
413 SkIntToScalar(irect.fBottom)); | 422 SkIntToScalar(irect.fBottom)); |
414 return r; | 423 return r; |
415 } | 424 } |
416 | 425 |
417 /** | 426 /** |
418 * Return true if the rectangle's width or height are <= 0 | 427 * Return true if the rectangle's width or height are <= 0 |
419 */ | 428 */ |
420 bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; } | 429 bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; } |
421 | 430 |
431 bool isInverted() const { return fLeft > fRight || fTop > fBottom; } | |
432 | |
433 bool isValid() const { | |
reed1
2013/09/04 18:49:36
Given the size an somewhat arbitrary nature of "va
sugoi1
2013/09/04 20:14:52
Done.
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434 return SkScalarIsFinite(fLeft) && | |
435 SkScalarIsFinite(fTop) && | |
436 SkScalarIsFinite(fRight) && | |
437 SkScalarIsFinite(fBottom) && | |
438 !isInverted() && | |
439 // Make sure width() and height() are also valid | |
440 ((fLeft >= 0) || (fRight <= 0) || ((fRight - SK_ScalarMax) <= fLe ft)) && | |
441 ((fTop >= 0) || (fBottom <= 0) || ((fBottom - SK_ScalarMax) <= fT op)); } | |
422 /** | 442 /** |
423 * Returns true iff all values in the rect are finite. If any are | 443 * Returns true iff all values in the rect are finite. If any are |
424 * infinite or NaN (or SK_FixedNaN when SkScalar is fixed) then this | 444 * infinite or NaN (or SK_FixedNaN when SkScalar is fixed) then this |
425 * returns false. | 445 * returns false. |
426 */ | 446 */ |
427 bool isFinite() const { | 447 bool isFinite() const { |
428 #ifdef SK_SCALAR_IS_FLOAT | 448 #ifdef SK_SCALAR_IS_FLOAT |
429 float accum = 0; | 449 float accum = 0; |
430 accum *= fLeft; | 450 accum *= fLeft; |
431 accum *= fTop; | 451 accum *= fTop; |
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797 */ | 817 */ |
798 void sort(); | 818 void sort(); |
799 | 819 |
800 /** | 820 /** |
801 * cast-safe way to treat the rect as an array of (4) SkScalars. | 821 * cast-safe way to treat the rect as an array of (4) SkScalars. |
802 */ | 822 */ |
803 const SkScalar* asScalars() const { return &fLeft; } | 823 const SkScalar* asScalars() const { return &fLeft; } |
804 }; | 824 }; |
805 | 825 |
806 #endif | 826 #endif |
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