xref: /aosp_15_r20/external/skia/docs/examples/Clip.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(Clip, 256, 90, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint redPaint, scalePaint;
7     redPaint.setAntiAlias(true);
8     redPaint.setColor(SK_ColorRED);
9     canvas->save();
10     for (bool antialias : { false, true } ) {
11         canvas->save();
12         canvas->clipRect(SkRect::MakeWH(19.5f, 11.5f), antialias);
13         canvas->drawCircle(17, 11, 8, redPaint);
14         canvas->restore();
15         canvas->translate(16, 0);
16     }
17     canvas->restore();
18     SkMatrix matrix;
19     matrix.setScale(6, 6);
20     scalePaint.setImageFilter(
21             SkImageFilters::MatrixTransform(matrix, SkSamplingOptions(), nullptr));
22     SkCanvas::SaveLayerRec saveLayerRec(
23             nullptr, &scalePaint, SkCanvas::kInitWithPrevious_SaveLayerFlag);
24     canvas->saveLayer(saveLayerRec);
25     canvas->restore();
26 }
27 }  // END FIDDLE
28