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 28