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#include "gm.h"
9#include "SkCanvas.h"
10#include "SkPath.h"
11#include "SkTypeface.h"
12
13static void test_path(SkCanvas* canvas, const SkPath& path) {
14    SkPaint paint;
15    paint.setAntiAlias(true);
16    canvas->drawPath(path, paint);
17
18    paint.setStyle(SkPaint::kStroke_Style);
19    paint.setColor(SK_ColorRED);
20    canvas->drawPath(path, paint);
21}
22
23static void test_rev(SkCanvas* canvas, const SkPath& path) {
24    test_path(canvas, path);
25
26    SkPath rev;
27    rev.reverseAddPath(path);
28    canvas->save();
29    canvas->translate(150, 0);
30    test_path(canvas, rev);
31    canvas->restore();
32}
33
34static void test_rev(SkCanvas* canvas) {
35    SkRect r = { 10, 10, 100, 60 };
36
37    SkPath path;
38
39    path.addRect(r); test_rev(canvas, path);
40
41    canvas->translate(0, 100);
42    path.offset(20, 20);
43    path.addRect(r); test_rev(canvas, path);
44
45    canvas->translate(0, 100);
46    path.reset();
47    path.moveTo(10, 10); path.lineTo(30, 30);
48    path.addOval(r);
49    r.offset(50, 20);
50    path.addOval(r);
51    test_rev(canvas, path);
52
53    SkPaint paint;
54    paint.setTextSize(SkIntToScalar(100));
55    SkTypeface* hira = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
56    SkSafeUnref(paint.setTypeface(hira));
57    path.reset();
58    paint.getTextPath("e", 1, 50, 50, &path);
59    canvas->translate(0, 100);
60    test_rev(canvas, path);
61}
62
63namespace skiagm {
64
65class PathReverseGM : public GM {
66public:
67    PathReverseGM() {
68
69    }
70
71protected:
72    virtual SkString onShortName() {
73        return SkString("path-reverse");
74    }
75
76    virtual SkISize onISize() {
77        return make_isize(640, 480);
78    }
79
80    virtual void onDraw(SkCanvas* canvas) {
81        if (false) test_rev(canvas); // avoid bit rot, suppress warning
82        SkRect r = { 10, 10, 100, 60 };
83
84        SkPath path;
85
86        path.addRect(r); test_rev(canvas, path);
87
88        canvas->translate(0, 100);
89        path.offset(20, 20);
90        path.addRect(r); test_rev(canvas, path);
91
92        canvas->translate(0, 100);
93        path.reset();
94        path.moveTo(10, 10); path.lineTo(30, 30);
95        path.addOval(r);
96        r.offset(50, 20);
97        path.addOval(r);
98        test_rev(canvas, path);
99
100        SkPaint paint;
101        paint.setTextSize(SkIntToScalar(100));
102        SkTypeface* hira = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
103        SkSafeUnref(paint.setTypeface(hira));
104        path.reset();
105        paint.getTextPath("e", 1, 50, 50, &path);
106        canvas->translate(0, 100);
107        test_rev(canvas, path);
108    }
109
110private:
111    typedef GM INHERITED;
112};
113
114//////////////////////////////////////////////////////////////////////////////
115
116static GM* MyFactory(void*) { return new PathReverseGM; }
117static GMRegistry reg(MyFactory);
118
119}
120