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) {
draw(SkCanvas * canvas)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
21