xref: /aosp_15_r20/external/skia/docs/examples/Picture_AbortCallback_abort.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(Picture_AbortCallback_abort, 256, 256, false, 0) {
5 class JustOneDraw : public SkPicture::AbortCallback {
6 public:
abort()7     bool abort() override { return fCalls++ > 0; }
8 private:
9     int fCalls = 0;
10 };
11 
draw(SkCanvas * canvas)12 void draw(SkCanvas* canvas) {
13     SkPictureRecorder recorder;
14     SkCanvas* pictureCanvas = recorder.beginRecording({0, 0, 256, 256});
15     SkPaint paint;
16     pictureCanvas->drawRect(SkRect::MakeWH(200, 200), paint);
17     paint.setColor(SK_ColorWHITE);
18     pictureCanvas->drawRect(SkRect::MakeLTRB(20, 20, 180, 180), paint);
19     sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
20     JustOneDraw callback;
21     picture->playback(canvas, &callback);
22 }
23 }  // END FIDDLE
24