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
13struct SkISize {
14    int32_t fWidth;
15    int32_t fHeight;
16
17    static SkISize Make(int32_t w, int32_t h) { return {w, h}; }
18
19    static SkISize MakeEmpty() { return {0, 0}; }
20
21    void set(int32_t w, int32_t h) { *this = SkISize{w, h}; }
22
23    /** Returns true iff fWidth == 0 && fHeight == 0
24     */
25    bool isZero() const { return 0 == fWidth && 0 == fHeight; }
26
27    /** Returns true if either widht or height are <= 0 */
28    bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; }
29
30    /** Set the width and height to 0 */
31    void setEmpty() { fWidth = fHeight = 0; }
32
33    int32_t width() const { return fWidth; }
34    int32_t height() const { return fHeight; }
35
36    bool equals(int32_t w, int32_t h) const { return fWidth == w && fHeight == h; }
37};
38
39static inline bool operator==(const SkISize& a, const SkISize& b) {
40    return a.fWidth == b.fWidth && a.fHeight == b.fHeight;
41}
42
43static inline bool operator!=(const SkISize& a, const SkISize& b) { return !(a == b); }
44
45///////////////////////////////////////////////////////////////////////////////
46
47struct SkSize {
48    SkScalar fWidth;
49    SkScalar fHeight;
50
51    static SkSize Make(SkScalar w, SkScalar h) { return {w, h}; }
52
53    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
61    static SkSize MakeEmpty() { return {0, 0}; }
62
63    void set(SkScalar w, SkScalar h) { *this = SkSize{w, h}; }
64
65    /** Returns true iff fWidth == 0 && fHeight == 0
66     */
67    bool isZero() const { return 0 == fWidth && 0 == fHeight; }
68
69    /** Returns true if either widht or height are <= 0 */
70    bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; }
71
72    /** Set the width and height to 0 */
73    void setEmpty() { *this = SkSize{0, 0}; }
74
75    SkScalar width() const { return fWidth; }
76    SkScalar height() const { return fHeight; }
77
78    bool equals(SkScalar w, SkScalar h) const { return fWidth == w && fHeight == h; }
79
80    SkISize toRound() const { return {SkScalarRoundToInt(fWidth), SkScalarRoundToInt(fHeight)}; }
81
82    SkISize toCeil() const { return {SkScalarCeilToInt(fWidth), SkScalarCeilToInt(fHeight)}; }
83
84    SkISize toFloor() const { return {SkScalarFloorToInt(fWidth), SkScalarFloorToInt(fHeight)}; }
85};
86
87static inline bool operator==(const SkSize& a, const SkSize& b) {
88    return a.fWidth == b.fWidth && a.fHeight == b.fHeight;
89}
90
91static inline bool operator!=(const SkSize& a, const SkSize& b) { return !(a == b); }
92#endif
93