xref: /aosp_15_r20/external/skia/docs/examples/Matrix_mapRect_2.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_2, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     paint.setAntiAlias(true);
8     SkMatrix matrix;
9     matrix.setRotate(45, 128, 128);
10     SkRect bounds = {40, 50, 190, 200};
11     matrix.mapRect(&bounds);
12     paint.setColor(SK_ColorGRAY);
13     canvas->drawRect(bounds, paint);
14     canvas->concat(matrix);
15     paint.setColor(SK_ColorRED);
16     canvas->drawRect({40, 50, 190, 200}, paint);
17 }
18 }  // END FIDDLE
19