xref: /aosp_15_r20/external/skia/docs/examples/Path_getVerbs.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(Path_getVerbs, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     auto debugster = [](const char* prefix, const SkPath& path, uint8_t* verbs, int max) -> void {
7          int count = path.getVerbs(verbs, max);
8          SkDebugf("%s verb count: %d  ", prefix, count);
9          const char* verbStr[] = { "move", "line", "quad", "conic", "cubic", "close" };
10          for (int i = 0; i < std::min(count, max) && verbs; ++i) {
11              SkDebugf("%s ", verbStr[verbs[i]]);
12          }
13          SkDebugf("\n");
14     };
15     SkPath path;
16     path.lineTo(20, 20);
17     path.lineTo(-10, -10);
18     uint8_t verbs[3];
19     debugster("no verbs",  path, nullptr, 0);
20     debugster("zero max",  path, verbs, 0);
21     debugster("too small",  path, verbs, 2);
22     debugster("just right",  path, verbs, path.countVerbs());
23 }
24 }  // END FIDDLE
25