1cb93a386Sopenharmony_ci// Copyright 2019 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_ci// HASH=f2260f2a170a54aef5bafe5b91c121b3
5cb93a386Sopenharmony_ciREG_FIDDLE(Path_incReserve, 256, 192, false, 0) {
6cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
7cb93a386Sopenharmony_ci    auto addPoly = [](int sides, SkScalar size, SkPath* path) -> void {
8cb93a386Sopenharmony_ci        path->moveTo(size, 0);
9cb93a386Sopenharmony_ci        for (int i = 1; i < sides; i++) {
10cb93a386Sopenharmony_ci            SkScalar rad = SK_ScalarPI * 2 * i / sides;
11cb93a386Sopenharmony_ci            path->lineTo(SkScalarCos(rad) * size, SkScalarSin(rad) * size);
12cb93a386Sopenharmony_ci        }
13cb93a386Sopenharmony_ci        path->close();
14cb93a386Sopenharmony_ci    };
15cb93a386Sopenharmony_ci    SkPath path;
16cb93a386Sopenharmony_ci    path.incReserve(3 + 4 + 5 + 6 + 7 + 8 + 9);
17cb93a386Sopenharmony_ci    for (int sides = 3; sides < 10; ++sides) {
18cb93a386Sopenharmony_ci       addPoly(sides, sides, &path);
19cb93a386Sopenharmony_ci    }
20cb93a386Sopenharmony_ci    SkMatrix matrix;
21cb93a386Sopenharmony_ci    matrix.setScale(10, 10, -10, -10);
22cb93a386Sopenharmony_ci    path.transform(matrix);
23cb93a386Sopenharmony_ci    SkPaint paint;
24cb93a386Sopenharmony_ci    paint.setStyle(SkPaint::kStroke_Style);
25cb93a386Sopenharmony_ci    canvas->drawPath(path, paint);
26cb93a386Sopenharmony_ci}
27cb93a386Sopenharmony_ci}  // END FIDDLE
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