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 "SkCullPoints.h"
11#include "SkRandom.h"
12
13static void test_hittest(SkCanvas* canvas, const SkPath& path) {
14    SkPaint paint;
15    SkRect r = path.getBounds();
16
17    paint.setColor(SK_ColorRED);
18    canvas->drawPath(path, paint);
19
20    const SkScalar MARGIN = SkIntToScalar(4);
21
22    paint.setColor(0x800000FF);
23    for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) {
24        for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) {
25            if (path.contains(x, y)) {
26                canvas->drawPoint(x, y, paint);
27            }
28        }
29    }
30}
31
32class HitTestPathGM : public skiagm::GM {
33public:
34    HitTestPathGM () {}
35
36protected:
37
38    SkString onShortName() override {
39        return SkString("hittestpath");
40    }
41
42    SkISize onISize() override { return SkISize::Make(700, 460); }
43
44    void onDraw(SkCanvas* canvas) override {
45        SkPath path;
46        SkRandom rand;
47
48        int scale = 300;
49        for (int i = 0; i < 4; ++i) {
50            path.lineTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
51            path.quadTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
52                        rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
53            path.cubicTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
54                         rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
55                         rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
56        }
57
58        path.setFillType(SkPath::kEvenOdd_FillType);
59        path.offset(SkIntToScalar(20), SkIntToScalar(20));
60
61        test_hittest(canvas, path);
62
63        canvas->translate(SkIntToScalar(scale), 0);
64        path.setFillType(SkPath::kWinding_FillType);
65
66        test_hittest(canvas, path);
67    }
68
69private:
70    typedef GM INHERITED;
71};
72
73//////////////////////////////////////////////////////////////////////////////
74
75static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; }
76static skiagm::GMRegistry reg(MyFactory);
77