skia2/docs/examples/Canvas_kInitWithPrevious_SaveLayerFlag.cpp
Mike Reed 9223665316 Guard legacy matrixtransforms, and expose new one
Bug: skia:11236
Bug: skia:11235
Change-Id: I53fc0532a6067c5b30fc0345ded95d50d9955d38
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363098
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
2021-02-01 22:10:39 +00:00

23 lines
911 B
C++

// 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 "tools/fiddle/examples.h"
// HASH=05db6a937225e8e31ae3481173d25dae
REG_FIDDLE(Canvas_kInitWithPrevious_SaveLayerFlag, 256, 160, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint redPaint, bluePaint, scalePaint;
redPaint.setColor(SK_ColorRED);
canvas->drawCircle(21, 21, 8, redPaint);
bluePaint.setColor(SK_ColorBLUE);
canvas->drawCircle(31, 21, 8, bluePaint);
SkMatrix matrix;
matrix.setScale(4, 4);
scalePaint.setAlpha(0x40);
scalePaint.setImageFilter(
SkImageFilters::MatrixTransform(matrix, SkSamplingOptions(), nullptr));
SkCanvas::SaveLayerRec saveLayerRec(nullptr, &scalePaint,
SkCanvas::kInitWithPrevious_SaveLayerFlag);
canvas->saveLayer(saveLayerRec);
canvas->restore();
}
} // END FIDDLE