1/*
2 * Copyright 2010 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 GrRect_DEFINED
9#define GrRect_DEFINED
10
11#include "SkTypes.h"
12#include "SkRect.h"
13
14struct GrIRect16 {
15    int16_t fLeft, fTop, fRight, fBottom;
16
17    static GrIRect16 SK_WARN_UNUSED_RESULT MakeEmpty() {
18        GrIRect16 r;
19        r.setEmpty();
20        return r;
21    }
22
23    static GrIRect16 SK_WARN_UNUSED_RESULT MakeWH(int16_t w, int16_t h) {
24        GrIRect16 r;
25        r.set(0, 0, w, h);
26        return r;
27    }
28
29    static GrIRect16 SK_WARN_UNUSED_RESULT MakeXYWH(int16_t x, int16_t y, int16_t w, int16_t h) {
30        GrIRect16 r;
31        r.set(x, y, x + w, y + h);
32        return r;
33    }
34
35    int width() const { return fRight - fLeft; }
36    int height() const { return fBottom - fTop; }
37    int area() const { return this->width() * this->height(); }
38    bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; }
39
40    void setEmpty() { memset(this, 0, sizeof(*this)); }
41
42    void set(int16_t left, int16_t top, int16_t right, int16_t bottom) {
43        fLeft = left;
44        fTop = top;
45        fRight = right;
46        fBottom = bottom;
47    }
48
49    void set(const SkIRect& r) {
50        fLeft   = SkToS16(r.fLeft);
51        fTop    = SkToS16(r.fTop);
52        fRight  = SkToS16(r.fRight);
53        fBottom = SkToS16(r.fBottom);
54    }
55};
56
57#endif
58