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 "SkPath.h"
11 #include "SkParsePath.h"
12 #include "SkDashPathEffect.h"
13
14 /*
15 * Inspired by http://code.google.com/p/chromium/issues/detail?id=112145
16 */
17
18 class DashCubicsGM : public skiagm::GM {
19 public:
DashCubicsGM()20 DashCubicsGM() {}
21
22 protected:
23
onShortName()24 virtual SkString onShortName() {
25 return SkString("dashcubics");
26 }
27
onISize()28 virtual SkISize onISize() {
29 return SkISize::Make(860, 700);
30 }
31
flower(SkCanvas * canvas,const SkPath & path,SkScalar intervals[2],SkPaint::Join join)32 void flower(SkCanvas* canvas, const SkPath& path, SkScalar intervals[2], SkPaint::Join join) {
33 SkPathEffect* pe = SkDashPathEffect::Create(intervals, 2, 0);
34
35 SkPaint paint;
36 paint.setAntiAlias(true);
37 paint.setStyle(SkPaint::kStroke_Style);
38 paint.setStrokeJoin(join);
39 paint.setStrokeWidth(42);
40 canvas->drawPath(path, paint);
41
42 paint.setColor(SK_ColorRED);
43 paint.setStrokeWidth(21);
44 paint.setPathEffect(pe)->unref();
45 canvas->drawPath(path, paint);
46
47 paint.setColor(SK_ColorGREEN);
48 paint.setPathEffect(NULL);
49 paint.setStrokeWidth(0);
50 canvas->drawPath(path, paint);
51 }
52
onDraw(SkCanvas * canvas)53 virtual void onDraw(SkCanvas* canvas) {
54 SkPath path;
55 const char* d = "M 337,98 C 250,141 250,212 250,212 C 250,212 250,212 250,212"
56 "C 250,212 250,212 250,212 C 250,212 250,141 163,98 C 156,195 217,231 217,231"
57 "C 217,231 217,231 217,231 C 217,231 217,231 217,231 C 217,231 156,195 75,250"
58 "C 156,305 217,269 217,269 C 217,269 217,269 217,269 C 217,269 217,269 217,269"
59 "C 217,269 156,305 163,402 C 250,359 250,288 250,288 C 250,288 250,288 250,288"
60 "C 250,288 250,288 250,288 C 250,288 250,359 338,402 C 345,305 283,269 283,269"
61 "C 283,269 283,269 283,269 C 283,269 283,269 283,269 C 283,269 345,305 425,250"
62 "C 344,195 283,231 283,231 C 283,231 283,231 283,231 C 283,231 283,231 283,231"
63 "C 283,231 344,195 338,98";
64
65 SkParsePath::FromSVGString(d, &path);
66 canvas->translate(-35.f, -55.f);
67 for (int x = 0; x < 2; ++x) {
68 for (int y = 0; y < 2; ++y) {
69 canvas->save();
70 canvas->translate(x * 430.f, y * 355.f);
71 SkScalar intervals[] = { 5 + (x ? 0 : 0.0001f + 0.0001f), 10 };
72 flower(canvas, path, intervals, y ? SkPaint::kDefault_Join : SkPaint::kRound_Join);
73 canvas->restore();
74 }
75 }
76 }
77
78 private:
79 typedef GM INHERITED;
80 };
81
82 //////////////////////////////////////////////////////////////////////////////
83
MyFactory(void *)84 static skiagm::GM* MyFactory(void*) { return new DashCubicsGM; }
85 static skiagm::GMRegistry reg(MyFactory);
86