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// HASH=0d2cbf82f490ffb180e0b4531afa232c 5REG_FIDDLE(Picture_MakePlaceholder, 256, 256, false, 0) { 6class MyCanvas : public SkCanvas { 7public: 8 MyCanvas(SkCanvas* c) : canvas(c) {} 9 void onDrawPicture(const SkPicture* picture, const SkMatrix* , 10 const SkPaint* ) override { 11 const SkRect rect = picture->cullRect(); 12 SkPaint redPaint; 13 redPaint.setColor(SK_ColorRED); 14 canvas->drawRect(rect, redPaint); 15 } 16 SkCanvas* canvas; 17}; 18 19void draw(SkCanvas* canvas) { 20 SkPictureRecorder recorder; 21 SkCanvas* pictureCanvas = recorder.beginRecording({0, 0, 256, 256}); 22 sk_sp<SkPicture> placeholder = SkPicture::MakePlaceholder({10, 40, 80, 110}); 23 pictureCanvas->drawPicture(placeholder); 24 sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture(); 25 MyCanvas myCanvas(canvas); 26 myCanvas.drawPicture(picture); 27} 28} // END FIDDLE 29