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
5REG_FIDDLE(Region_Spanerator_next, 256, 256, true, 0) {
6void 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