1/*
2 * Copyright 2012 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 "SkGraphics.h"
11#include "SkRandom.h"
12#include "SkLayerDrawLooper.h"
13#include "SkBlurMaskFilter.h"
14
15static SkRect inset(const SkRect& r) {
16    SkRect rect = r;
17    rect.inset(r.width() / 8, r.height() / 8);
18    return rect;
19}
20
21class PathInteriorGM : public skiagm::GM {
22public:
23    PathInteriorGM() {
24        this->setBGColor(0xFFDDDDDD);
25    }
26
27protected:
28    virtual uint32_t onGetFlags() const SK_OVERRIDE {
29        return kSkipTiled_Flag;
30    }
31
32    virtual SkISize onISize() {
33        return SkISize::Make(770, 770);
34    }
35
36    virtual SkString onShortName() SK_OVERRIDE {
37        return SkString("pathinterior");
38    }
39
40    void show(SkCanvas* canvas, const SkPath& path) {
41        SkPaint paint;
42        paint.setAntiAlias(true);
43
44        SkRect rect;
45#if 0
46        bool hasInterior = path.hasRectangularInterior(&rect);
47#else
48        bool hasInterior = false;
49#endif
50
51        paint.setColor(hasInterior ? 0xFF8888FF : SK_ColorGRAY);
52        canvas->drawPath(path, paint);
53        paint.setStyle(SkPaint::kStroke_Style);
54        paint.setColor(SK_ColorRED);
55        canvas->drawPath(path, paint);
56
57        if (hasInterior) {
58            paint.setStyle(SkPaint::kFill_Style);
59            paint.setColor(0x8800FF00);
60            canvas->drawRect(rect, paint);
61        }
62    }
63
64    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
65        canvas->translate(8.5f, 8.5f);
66
67        const SkRect rect = { 0, 0, 80, 80 };
68        const SkScalar RAD = rect.width()/8;
69
70        int i = 0;
71        for (int insetFirst = 0; insetFirst <= 1; ++insetFirst) {
72            for (int doEvenOdd = 0; doEvenOdd <= 1; ++doEvenOdd) {
73                for (int outerRR = 0; outerRR <= 1; ++outerRR) {
74                    for (int innerRR = 0; innerRR <= 1; ++innerRR) {
75                        for (int outerCW = 0; outerCW <= 1; ++outerCW) {
76                            for (int innerCW = 0; innerCW <= 1; ++innerCW) {
77                                SkPath path;
78                                path.setFillType(doEvenOdd ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType);
79                                SkPath::Direction outerDir = outerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
80                                SkPath::Direction innerDir = innerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
81
82                                SkRect r = insetFirst ? inset(rect) : rect;
83                                if (outerRR) {
84                                    path.addRoundRect(r, RAD, RAD, outerDir);
85                                } else {
86                                    path.addRect(r, outerDir);
87                                }
88                                r = insetFirst ? rect : inset(rect);
89                                if (innerRR) {
90                                    path.addRoundRect(r, RAD, RAD, innerDir);
91                                } else {
92                                    path.addRect(r, innerDir);
93                                }
94
95                                SkScalar dx = (i / 8) * rect.width() * 6 / 5;
96                                SkScalar dy = (i % 8) * rect.height() * 6 / 5;
97                                i++;
98                                path.offset(dx, dy);
99
100                                this->show(canvas, path);
101                            }
102                        }
103                    }
104                }
105            }
106        }
107    }
108
109private:
110
111    typedef GM INHERITED;
112};
113
114//////////////////////////////////////////////////////////////////////////////
115
116static skiagm::GM* MyFactory(void*) { return new PathInteriorGM; }
117static skiagm::GMRegistry reg(MyFactory);
118