1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8#include "gm.h"
9
10namespace skiagm {
11
12class FillTypeGM : public GM {
13    SkPath fPath;
14public:
15    FillTypeGM() {
16        this->setBGColor(0xFFDDDDDD);
17    }
18
19    void makePath() {
20        if (fPath.isEmpty()) {
21            const SkScalar radius = SkIntToScalar(45);
22            fPath.addCircle(SkIntToScalar(50), SkIntToScalar(50), radius);
23            fPath.addCircle(SkIntToScalar(100), SkIntToScalar(100), radius);
24        }
25    }
26
27protected:
28
29    SkString onShortName() override {
30        return SkString("filltypes");
31    }
32
33    SkISize onISize() override {
34        return SkISize::Make(835, 840);
35    }
36
37    void showPath(SkCanvas* canvas, int x, int y, SkPath::FillType ft,
38                  SkScalar scale, const SkPaint& paint) {
39        const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) };
40
41        canvas->save();
42        canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
43        canvas->clipRect(r);
44        canvas->drawColor(SK_ColorWHITE);
45        fPath.setFillType(ft);
46        canvas->translate(r.centerX(), r.centerY());
47        canvas->scale(scale, scale);
48        canvas->translate(-r.centerX(), -r.centerY());
49        canvas->drawPath(fPath, paint);
50        canvas->restore();
51    }
52
53    void showFour(SkCanvas* canvas, SkScalar scale, const SkPaint& paint) {
54        showPath(canvas,   0,   0, SkPath::kWinding_FillType,
55                 scale, paint);
56        showPath(canvas, 200,   0, SkPath::kEvenOdd_FillType,
57                 scale, paint);
58        showPath(canvas,  00, 200, SkPath::kInverseWinding_FillType,
59                 scale, paint);
60        showPath(canvas, 200, 200, SkPath::kInverseEvenOdd_FillType,
61                 scale, paint);
62    }
63
64    void onDraw(SkCanvas* canvas) override {
65        this->makePath();
66
67        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
68
69        SkPaint paint;
70        const SkScalar scale = SkIntToScalar(5)/4;
71
72        paint.setAntiAlias(false);
73
74        showFour(canvas, SK_Scalar1, paint);
75        canvas->translate(SkIntToScalar(450), 0);
76        showFour(canvas, scale, paint);
77
78        paint.setAntiAlias(true);
79
80        canvas->translate(SkIntToScalar(-450), SkIntToScalar(450));
81        showFour(canvas, SK_Scalar1, paint);
82        canvas->translate(SkIntToScalar(450), 0);
83        showFour(canvas, scale, paint);
84    }
85
86private:
87    typedef GM INHERITED;
88};
89
90//////////////////////////////////////////////////////////////////////////////
91
92static GM* MyFactory(void*) { return new FillTypeGM; }
93static GMRegistry reg(MyFactory);
94
95}
96