xref: /aosp_15_r20/external/skia/docs/examples/Region_setRegion.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_setRegion, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     auto debugster = [](const char* label, SkRegion& region) -> void {
7         auto r = region.getBounds();
8         SkDebugf("%14s: {%d,%d,%d,%d}\n", label, r.fLeft, r.fTop, r.fRight, r.fBottom);
9     };
10     SkRegion region({1, 2, 3, 4});
11     SkRegion region2;
12     region2.setRegion(region);
13     debugster("region bounds", region);
14     debugster("region2 bounds", region2);
15     region2.setEmpty();
16     SkDebugf("    after region set empty:\n");
17     debugster("region bounds", region);
18     debugster("region2 bounds", region2);
19 }
20 }  // END FIDDLE
21