1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Path_incReserve, 256, 192, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker auto addPoly = [](int sides, SkScalar size, SkPath* path) -> void {
7*c8dee2aaSAndroid Build Coastguard Worker path->moveTo(size, 0);
8*c8dee2aaSAndroid Build Coastguard Worker for (int i = 1; i < sides; i++) {
9*c8dee2aaSAndroid Build Coastguard Worker SkScalar rad = SK_ScalarPI * 2 * i / sides;
10*c8dee2aaSAndroid Build Coastguard Worker path->lineTo(SkScalarCos(rad) * size, SkScalarSin(rad) * size);
11*c8dee2aaSAndroid Build Coastguard Worker }
12*c8dee2aaSAndroid Build Coastguard Worker path->close();
13*c8dee2aaSAndroid Build Coastguard Worker };
14*c8dee2aaSAndroid Build Coastguard Worker SkPath path;
15*c8dee2aaSAndroid Build Coastguard Worker path.incReserve(3 + 4 + 5 + 6 + 7 + 8 + 9);
16*c8dee2aaSAndroid Build Coastguard Worker for (int sides = 3; sides < 10; ++sides) {
17*c8dee2aaSAndroid Build Coastguard Worker addPoly(sides, sides, &path);
18*c8dee2aaSAndroid Build Coastguard Worker }
19*c8dee2aaSAndroid Build Coastguard Worker SkMatrix matrix;
20*c8dee2aaSAndroid Build Coastguard Worker matrix.setScale(10, 10, -10, -10);
21*c8dee2aaSAndroid Build Coastguard Worker path.transform(matrix);
22*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
23*c8dee2aaSAndroid Build Coastguard Worker paint.setStyle(SkPaint::kStroke_Style);
24*c8dee2aaSAndroid Build Coastguard Worker canvas->drawPath(path, paint);
25*c8dee2aaSAndroid Build Coastguard Worker }
26*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
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