xref: /aosp_15_r20/external/skia/docs/examples/Path_conicTo.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(Path_conicTo, 256, 160, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     paint.setAntiAlias(true);
8     paint.setStyle(SkPaint::kStroke_Style);
9     SkPoint conicPts[] = {{20, 150}, {120, 10}, {220, 150}};
10     canvas->drawLine(conicPts[0], conicPts[1], paint);
11     canvas->drawLine(conicPts[1], conicPts[2], paint);
12     SkColor colors[] = { 0xff88ff00, 0xff0088bb, 0xff6600cc, 0xffbb3377 };
13     paint.setStrokeWidth(3);
14     SkScalar weight = 0.5f;
15     for (unsigned i = 0; i < std::size(colors); ++i) {
16         SkPath path;
17         path.moveTo(conicPts[0]);
18         path.conicTo(conicPts[1], conicPts[2], weight);
19         paint.setColor(colors[i]);
20         canvas->drawPath(path, paint);
21         weight += 0.25f;
22    }
23 }
24 }  // END FIDDLE
25