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    virtual uint32_t onGetFlags() const SK_OVERRIDE {
29        return kSkipTiled_Flag;
30    }
31
32    virtual SkString onShortName() {
33        return SkString("filltypes");
34    }
35
36    virtual SkISize onISize() {
37        return SkISize::Make(835, 840);
38    }
39
40    void showPath(SkCanvas* canvas, int x, int y, SkPath::FillType ft,
41                  SkScalar scale, const SkPaint& paint) {
42
43        const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) };
44
45        canvas->save();
46        canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
47        canvas->clipRect(r);
48        canvas->drawColor(SK_ColorWHITE);
49        fPath.setFillType(ft);
50        canvas->translate(r.centerX(), r.centerY());
51        canvas->scale(scale, scale);
52        canvas->translate(-r.centerX(), -r.centerY());
53        canvas->drawPath(fPath, paint);
54        canvas->restore();
55    }
56
57    void showFour(SkCanvas* canvas, SkScalar scale, const SkPaint& paint) {
58        showPath(canvas,   0,   0, SkPath::kWinding_FillType,
59                 scale, paint);
60        showPath(canvas, 200,   0, SkPath::kEvenOdd_FillType,
61                 scale, paint);
62        showPath(canvas,  00, 200, SkPath::kInverseWinding_FillType,
63                 scale, paint);
64        showPath(canvas, 200, 200, SkPath::kInverseEvenOdd_FillType,
65                 scale, paint);
66    }
67
68    virtual void onDraw(SkCanvas* canvas) {
69        this->makePath();
70
71        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
72
73        SkPaint paint;
74        const SkScalar scale = SkIntToScalar(5)/4;
75
76        paint.setAntiAlias(false);
77
78        showFour(canvas, SK_Scalar1, paint);
79        canvas->translate(SkIntToScalar(450), 0);
80        showFour(canvas, scale, paint);
81
82        paint.setAntiAlias(true);
83
84        canvas->translate(SkIntToScalar(-450), SkIntToScalar(450));
85        showFour(canvas, SK_Scalar1, paint);
86        canvas->translate(SkIntToScalar(450), 0);
87        showFour(canvas, scale, paint);
88    }
89
90private:
91    typedef GM INHERITED;
92};
93
94//////////////////////////////////////////////////////////////////////////////
95
96static GM* MyFactory(void*) { return new FillTypeGM; }
97static GMRegistry reg(MyFactory);
98
99}
100