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
test_hittest(SkCanvas * canvas,const SkPath & path)13 static 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
32 class HitTestPathGM : public skiagm::GM {
33 public:
HitTestPathGM()34 HitTestPathGM () {}
35
36 protected:
onGetFlags() const37 virtual uint32_t onGetFlags() const SK_OVERRIDE {
38 return kSkipTiled_Flag;
39 }
40
onShortName()41 virtual SkString onShortName() {
42 return SkString("hittestpath");
43 }
44
onISize()45 virtual SkISize onISize() { return SkISize::Make(700, 460); }
46
onDraw(SkCanvas * canvas)47 virtual void onDraw(SkCanvas* canvas) {
48 SkPath path;
49 SkLCGRandom rand;
50
51 int scale = 300;
52 for (int i = 0; i < 4; ++i) {
53 path.lineTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
54 path.quadTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
55 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
56 path.cubicTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
57 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
58 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
59 }
60
61 path.setFillType(SkPath::kEvenOdd_FillType);
62 path.offset(SkIntToScalar(20), SkIntToScalar(20));
63
64 test_hittest(canvas, path);
65
66 canvas->translate(SkIntToScalar(scale), 0);
67 path.setFillType(SkPath::kWinding_FillType);
68
69 test_hittest(canvas, path);
70 }
71
72 private:
73 typedef GM INHERITED;
74 };
75
76 //////////////////////////////////////////////////////////////////////////////
77
MyFactory(void *)78 static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; }
79 static skiagm::GMRegistry reg(MyFactory);
80