1 // Copyright 2020 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(skpaint_compose_path_effect, 256, 256, false, 0) {
star()5 SkPath star() {
6 const SkScalar R = 115.2f, C = 128.0f;
7 SkPath path;
8 path.moveTo(C + R, C);
9 for (int i = 1; i < 8; ++i) {
10 SkScalar a = 2.6927937f * i;
11 path.lineTo(C + R * cos(a), C + R * sin(a));
12 }
13 return path;
14 }
draw(SkCanvas * canvas)15 void draw(SkCanvas* canvas) {
16 const SkScalar intervals[] = {10.0f, 5.0f, 2.0f, 5.0f};
17 size_t count = sizeof(intervals) / sizeof(intervals[0]);
18 SkPaint paint;
19 paint.setPathEffect(
20 SkPathEffect::MakeCompose(SkDashPathEffect::Make(intervals, count, 0.0f),
21 SkDiscretePathEffect::Make(10.0f, 4.0f)));
22 paint.setStyle(SkPaint::kStroke_Style);
23 paint.setStrokeWidth(2.0f);
24 paint.setAntiAlias(true);
25 canvas->clear(SK_ColorWHITE);
26 SkPath path(star());
27 canvas->drawPath(path, paint);
28 }
29 } // END FIDDLE
30