submodule/skia/docs/examples/Image_Filter_Methods.cpp

   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=ece04ee3d3761e3425f37c8f06f054c1
   5 REG_FIDDLE(Image_Filter_Methods, 256, 256, false, 0) {
   6 #include "include/effects/SkImageFilters.h"
   7
   8 void draw(SkCanvas* canvas) {
   9     SkPaint paint;
  10     paint.setStyle(SkPaint::kStroke_Style);
  11     paint.setStrokeWidth(2);
  12     SkRegion region;
  13     region.op({10, 10, 50, 50}, SkRegion::kUnion_Op);
  14     region.op({10, 50, 90, 90}, SkRegion::kUnion_Op);
  15     paint.setImageFilter(SkImageFilters::Blur(5.0f, 5.0f, nullptr));
  16     canvas->drawRegion(region, paint);
  17     paint.setImageFilter(nullptr);
  18     paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 5));
  19     canvas->translate(100, 100);
  20     canvas->drawRegion(region, paint);
  21 }
  22 }  // END FIDDLE