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 "SkScalar.h"
12 
13 struct SkISize {
14     int32_t fWidth;
15     int32_t fHeight;
16 
MakeSkISize17     static SkISize Make(int32_t w, int32_t h) { return {w, h}; }
18 
MakeEmptySkISize19     static SkISize MakeEmpty() { return {0, 0}; }
20 
setSkISize21     void set(int32_t w, int32_t h) { *this = SkISize{w, h}; }
22 
23     /** Returns true iff fWidth == 0 && fHeight == 0
24      */
isZeroSkISize25     bool isZero() const { return 0 == fWidth && 0 == fHeight; }
26 
27     /** Returns true if either width or height are <= 0 */
isEmptySkISize28     bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; }
29 
30     /** Set the width and height to 0 */
setEmptySkISize31     void setEmpty() { fWidth = fHeight = 0; }
32 
widthSkISize33     int32_t width() const { return fWidth; }
heightSkISize34     int32_t height() const { return fHeight; }
35 
equalsSkISize36     bool equals(int32_t w, int32_t h) const { return fWidth == w && fHeight == h; }
37 };
38 
39 static inline bool operator==(const SkISize& a, const SkISize& b) {
40     return a.fWidth == b.fWidth && a.fHeight == b.fHeight;
41 }
42 
43 static inline bool operator!=(const SkISize& a, const SkISize& b) { return !(a == b); }
44 
45 ///////////////////////////////////////////////////////////////////////////////
46 
47 struct SkSize {
48     SkScalar fWidth;
49     SkScalar fHeight;
50 
MakeSkSize51     static SkSize Make(SkScalar w, SkScalar h) { return {w, h}; }
52 
MakeSkSize53     static SkSize Make(const SkISize& src) {
54         return {SkIntToScalar(src.width()), SkIntToScalar(src.height())};
55     }
56 
57     SkSize& operator=(const SkISize& src) {
58         return *this = SkSize{SkIntToScalar(src.fWidth), SkIntToScalar(src.fHeight)};
59     }
60 
MakeEmptySkSize61     static SkSize MakeEmpty() { return {0, 0}; }
62 
setSkSize63     void set(SkScalar w, SkScalar h) { *this = SkSize{w, h}; }
64 
65     /** Returns true iff fWidth == 0 && fHeight == 0
66      */
isZeroSkSize67     bool isZero() const { return 0 == fWidth && 0 == fHeight; }
68 
69     /** Returns true if either width or height are <= 0 */
isEmptySkSize70     bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; }
71 
72     /** Set the width and height to 0 */
setEmptySkSize73     void setEmpty() { *this = SkSize{0, 0}; }
74 
widthSkSize75     SkScalar width() const { return fWidth; }
heightSkSize76     SkScalar height() const { return fHeight; }
77 
equalsSkSize78     bool equals(SkScalar w, SkScalar h) const { return fWidth == w && fHeight == h; }
79 
toRoundSkSize80     SkISize toRound() const { return {SkScalarRoundToInt(fWidth), SkScalarRoundToInt(fHeight)}; }
81 
toCeilSkSize82     SkISize toCeil() const { return {SkScalarCeilToInt(fWidth), SkScalarCeilToInt(fHeight)}; }
83 
toFloorSkSize84     SkISize toFloor() const { return {SkScalarFloorToInt(fWidth), SkScalarFloorToInt(fHeight)}; }
85 };
86 
87 static inline bool operator==(const SkSize& a, const SkSize& b) {
88     return a.fWidth == b.fWidth && a.fHeight == b.fHeight;
89 }
90 
91 static inline bool operator!=(const SkSize& a, const SkSize& b) { return !(a == b); }
92 #endif
93