xref: /aosp_15_r20/external/skia/docs/examples/Matrix_mapRect_3.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(Matrix_mapRect_3, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkRect rect{110, 50, 180, 100};
7     SkMatrix matrix;
8     matrix.setRotate(50, 28, 28);
9     SkRect mapped = matrix.mapRect(rect);
10     SkPaint paint;
11     paint.setAntiAlias(true);
12     paint.setStyle(SkPaint::kStroke_Style);
13     canvas->drawRect(rect, paint);
14     canvas->drawRect(mapped, paint);
15     canvas->concat(matrix);
16     canvas->drawRect(rect, paint);
17 }
18 }  // END FIDDLE
19