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(shader, 256, 256, false, 0) {
star()5 SkPath star() {
6     const SkScalar R = 60.0f, C = 128.0f;
7     SkPath path;
8     path.moveTo(C + R, C);
9     for (int i = 1; i < 15; ++i) {
10         SkScalar a = 0.44879895f * i;
11         SkScalar r = R + R * (i % 2);
12         path.lineTo(C + r * cos(a), C + r * sin(a));
13     }
14     return path;
15 }
draw(SkCanvas * canvas)16 void draw(SkCanvas* canvas) {
17     SkPaint paint;
18     paint.setPathEffect(SkDiscretePathEffect::Make(10.0f, 4.0f));
19     SkPoint points[2] = {SkPoint::Make(0.0f, 0.0f), SkPoint::Make(256.0f, 256.0f)};
20     SkColor colors[2] = {SkColorSetRGB(66, 133, 244), SkColorSetRGB(15, 157, 88)};
21     paint.setShader(
22             SkGradientShader::MakeLinear(points, colors, NULL, 2, SkTileMode::kClamp, 0, NULL));
23     paint.setAntiAlias(true);
24     canvas->clear(SK_ColorWHITE);
25     SkPath path(star());
26     canvas->drawPath(path, paint);
27 }
28 }  // END FIDDLE
29