Region_Spanerator_next.cpp 815 B

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  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=03d02180fee5f64ec4a3347e118fb2ec
  5. REG_FIDDLE(Region_Spanerator_next, 256, 256, true, 0) {
  6. void draw(SkCanvas* canvas) {
  7. auto debugster = [](const char* label, SkRegion& region) -> void {
  8. SkRegion::Spanerator spanner(region, 3, 2, 4);
  9. int left, right;
  10. bool result = spanner.next(&left, &right);
  11. SkDebugf("%14s: result=%s", label, result ? "true" : "false");
  12. if (result) SkDebugf(" left=%d right=%d", left, right);
  13. SkDebugf("\n");
  14. };
  15. SkRegion region;
  16. debugster("empty region", region);
  17. region.setRect({1, 2, 3, 4});
  18. debugster("after set rect", region);
  19. }
  20. } // END FIDDLE