xref: /aosp_15_r20/external/skia/docs/examples/Point_scale.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 // Copyright 2019 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(Point_scale, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     paint.setAntiAlias(true);
8     SkPoint point = {40, -15}, scaled;
9     SkPoint origin = {30, 110};
10     for (auto scale : {1, 2, 3, 5}) {
11         paint.setStrokeWidth(scale * 5);
12         paint.setARGB(0x7f, 0x9f, 0xbf, 0x33 * scale);
13         point.scale(scale, &scaled);
14         canvas->drawLine(origin, origin + scaled, paint);
15     }
16 }
17 }  // END FIDDLE
18