xref: /third_party/skia/docs/examples/star2.cpp
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1cb93a386Sopenharmony_ci// Copyright 2020 Google LLC.
2cb93a386Sopenharmony_ci// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3cb93a386Sopenharmony_ci#include "tools/fiddle/examples.h"
4cb93a386Sopenharmony_ciREG_FIDDLE(star2, 256, 256, false, 0) {
5cb93a386Sopenharmony_ciSkPath star() {
6cb93a386Sopenharmony_ci    const SkScalar R = 115.2f, C = 128.0f;
7cb93a386Sopenharmony_ci    SkPath path;
8cb93a386Sopenharmony_ci    path.moveTo(C + R, C);
9cb93a386Sopenharmony_ci    for (int i = 1; i < 8; ++i) {
10cb93a386Sopenharmony_ci        SkScalar a = 2.6927937f * i;
11cb93a386Sopenharmony_ci        path.lineTo(C + R * cos(a), C + R * sin(a));
12cb93a386Sopenharmony_ci    }
13cb93a386Sopenharmony_ci    return path;
14cb93a386Sopenharmony_ci}
15cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
16cb93a386Sopenharmony_ci    SkPaint paint;
17cb93a386Sopenharmony_ci
18cb93a386Sopenharmony_ci    paint.setStyle(SkPaint::kStroke_Style);
19cb93a386Sopenharmony_ci    paint.setStrokeWidth(2.0f);
20cb93a386Sopenharmony_ci    paint.setAntiAlias(true);
21cb93a386Sopenharmony_ci    paint.setColor(0xff4281A4);
22cb93a386Sopenharmony_ci    canvas->clear(SK_ColorWHITE);
23cb93a386Sopenharmony_ci    SkPath path(star());
24cb93a386Sopenharmony_ci    canvas->drawPath(path, paint);
25cb93a386Sopenharmony_ci}
26cb93a386Sopenharmony_ci}  // END FIDDLE
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Indexes created Thu Nov 07 10:32:03 CST 2024