skia2/docs/examples/Picture_cullRect.cpp

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// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "fiddle/examples.h"
// HASH=15bb9a9596b40c5e2045f76e8c1dcf8e
REG_FIDDLE(Picture_cullRect, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkPictureRecorder recorder;
SkCanvas* pictureCanvas = recorder.beginRecording({64, 64, 192, 192});
SkPaint paint;
pictureCanvas->drawRect(SkRect::MakeWH(200, 200), paint);
paint.setColor(SK_ColorWHITE);
pictureCanvas->drawRect(SkRect::MakeLTRB(20, 20, 180, 180), paint);
sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
picture->playback(canvas);
paint.setBlendMode(SkBlendMode::kModulate);
paint.setColor(0x40404040);
canvas->drawRect(picture->cullRect(), paint);
}
} // END FIDDLE