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 REG_FIDDLE(Region_Iterator_rewind, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 auto debugster = [](const char* label, SkRegion::Iterator& iter, bool addRewind) -> void {
7 if (addRewind) {
8 bool success = iter.rewind();
9 SkDebugf("%14s rewind success=%s\n", label, success ? "true" : "false");
10 }
11 auto r = iter.rect();
12 SkDebugf("%14s rect={%d,%d,%d,%d}\n", label, r.fLeft, r.fTop, r.fRight, r.fBottom);
13 };
14 SkRegion::Iterator iter;
15 debugster("empty iter", iter, true);
16 SkRegion region;
17 iter.reset(region);
18 debugster("empty region", iter, true);
19 region.setRect({1, 2, 3, 4});
20 iter.reset(region);
21 debugster("after set rect", iter, false);
22 debugster("after rewind", iter, true);
23 }
24 } // END FIDDLE
25