1 /* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkSize_DEFINED 9 #define SkSize_DEFINED 10 11 #include "include/core/SkScalar.h" 12 #include "include/private/base/SkTo.h" 13 14 #include <cstdint> 15 16 struct SkISize { 17 int32_t fWidth; 18 int32_t fHeight; 19 MakeSkISize20 static constexpr SkISize Make(int32_t w, int32_t h) { return {w, h}; } 21 MakeEmptySkISize22 static constexpr SkISize MakeEmpty() { return {0, 0}; } 23 setSkISize24 void set(int32_t w, int32_t h) { *this = SkISize{w, h}; } 25 26 /** Returns true iff fWidth == 0 && fHeight == 0 27 */ isZeroSkISize28 bool isZero() const { return 0 == fWidth && 0 == fHeight; } 29 30 /** Returns true if either width or height are <= 0 */ isEmptySkISize31 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } 32 33 /** Set the width and height to 0 */ setEmptySkISize34 void setEmpty() { fWidth = fHeight = 0; } 35 widthSkISize36 constexpr int32_t width() const { return fWidth; } heightSkISize37 constexpr int32_t height() const { return fHeight; } 38 areaSkISize39 constexpr int64_t area() const { return SkToS64(fWidth) * SkToS64(fHeight); } 40 equalsSkISize41 bool equals(int32_t w, int32_t h) const { return fWidth == w && fHeight == h; } 42 }; 43 44 static inline bool operator==(const SkISize& a, const SkISize& b) { 45 return a.fWidth == b.fWidth && a.fHeight == b.fHeight; 46 } 47 48 static inline bool operator!=(const SkISize& a, const SkISize& b) { return !(a == b); } 49 50 /////////////////////////////////////////////////////////////////////////////// 51 52 struct SkSize { 53 SkScalar fWidth; 54 SkScalar fHeight; 55 MakeSkSize56 static constexpr SkSize Make(SkScalar w, SkScalar h) { return {w, h}; } 57 MakeSkSize58 static constexpr SkSize Make(const SkISize& src) { 59 return {SkIntToScalar(src.width()), SkIntToScalar(src.height())}; 60 } 61 MakeEmptySkSize62 static constexpr SkSize MakeEmpty() { return {0, 0}; } 63 setSkSize64 void set(SkScalar w, SkScalar h) { *this = SkSize{w, h}; } 65 66 /** Returns true iff fWidth == 0 && fHeight == 0 67 */ isZeroSkSize68 bool isZero() const { return 0 == fWidth && 0 == fHeight; } 69 70 /** Returns true if either width or height are <= 0 */ isEmptySkSize71 bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; } 72 73 /** Set the width and height to 0 */ setEmptySkSize74 void setEmpty() { *this = SkSize{0, 0}; } 75 widthSkSize76 SkScalar width() const { return fWidth; } heightSkSize77 SkScalar height() const { return fHeight; } 78 equalsSkSize79 bool equals(SkScalar w, SkScalar h) const { return fWidth == w && fHeight == h; } 80 toRoundSkSize81 SkISize toRound() const { return {SkScalarRoundToInt(fWidth), SkScalarRoundToInt(fHeight)}; } 82 toCeilSkSize83 SkISize toCeil() const { return {SkScalarCeilToInt(fWidth), SkScalarCeilToInt(fHeight)}; } 84 toFloorSkSize85 SkISize toFloor() const { return {SkScalarFloorToInt(fWidth), SkScalarFloorToInt(fHeight)}; } 86 }; 87 88 static inline bool operator==(const SkSize& a, const SkSize& b) { 89 return a.fWidth == b.fWidth && a.fHeight == b.fHeight; 90 } 91 92 static inline bool operator!=(const SkSize& a, const SkSize& b) { return !(a == b); } 93 #endif 94