xref: /aosp_15_r20/external/skia/docs/examples/AutoCanvasRestore_restore.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(AutoCanvasRestore_restore, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     for (bool callRestore : { false, true } ) {
7         for (bool saveCanvas : {false, true} ) {
8             SkAutoCanvasRestore autoRestore(canvas, saveCanvas);
9             if (!saveCanvas) {
10                 canvas->save();
11             }
12             SkDebugf("saveCanvas: %s  before restore: %d\n",
13                    saveCanvas ? "true" : "false", canvas->getSaveCount());
14             if (callRestore) autoRestore.restore();
15             SkDebugf("saveCanvas: %s  after restore: %d\n",
16                    saveCanvas ? "true" : "false", canvas->getSaveCount());
17         }
18     }
19     SkDebugf("final count: %d\n", canvas->getSaveCount());
20 }
21 }  // END FIDDLE
22