xref: /aosp_15_r20/external/skia/docs/examples/Region_setRegion.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Region_setRegion, 256, 256, true, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     auto debugster = [](const char* label, SkRegion& region) -> void {
7*c8dee2aaSAndroid Build Coastguard Worker         auto r = region.getBounds();
8*c8dee2aaSAndroid Build Coastguard Worker         SkDebugf("%14s: {%d,%d,%d,%d}\n", label, r.fLeft, r.fTop, r.fRight, r.fBottom);
9*c8dee2aaSAndroid Build Coastguard Worker     };
10*c8dee2aaSAndroid Build Coastguard Worker     SkRegion region({1, 2, 3, 4});
11*c8dee2aaSAndroid Build Coastguard Worker     SkRegion region2;
12*c8dee2aaSAndroid Build Coastguard Worker     region2.setRegion(region);
13*c8dee2aaSAndroid Build Coastguard Worker     debugster("region bounds", region);
14*c8dee2aaSAndroid Build Coastguard Worker     debugster("region2 bounds", region2);
15*c8dee2aaSAndroid Build Coastguard Worker     region2.setEmpty();
16*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("    after region set empty:\n");
17*c8dee2aaSAndroid Build Coastguard Worker     debugster("region bounds", region);
18*c8dee2aaSAndroid Build Coastguard Worker     debugster("region2 bounds", region2);
19*c8dee2aaSAndroid Build Coastguard Worker }
20*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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