xref: /aosp_15_r20/external/skia/docs/examples/Region_isEmpty.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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_isEmpty, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     auto debugster = [](const char* label, SkRegion& region) -> void {
7         SkDebugf("%14s: region is %s" "empty\n", label, region.isEmpty() ? "" : "not ");
8     };
9     SkRegion region;
10     debugster("initial", region);
11     region.setRect({1, 2, 3, 4});
12     debugster("set rect", region);
13     region.setEmpty();
14     debugster("set empty", region);
15 }
16 }  // END FIDDLE
17