xref: /aosp_15_r20/external/skia/docs/examples/Path_addRRect_2.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_addRRect_2, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     paint.setAntiAlias(true);
8     SkRRect rrect;
9     rrect.setRectXY({40, 40, 215, 215}, 50, 50);
10     SkPath path;
11     path.addRRect(rrect);
12     canvas->drawPath(path, paint);
13     for (int start = 0; start < 8; ++start) {
14         SkPath textPath;
15         textPath.addRRect(rrect, SkPathDirection::kCW, start);
16         SkPathMeasure pathMeasure(textPath, false);
17         SkPoint position;
18         SkVector tangent;
19         if (!pathMeasure.getPosTan(0, &position, &tangent)) {
20             continue;
21         }
22         SkRSXform rsxForm = SkRSXform::Make(tangent.fX, tangent.fY,
23                position.fX + tangent.fY * 5, position.fY - tangent.fX * 5);
24         SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 12);
25         auto labels = SkTextBlob::MakeFromRSXform(&"01234567"[start], 1, &rsxForm, font);
26         canvas->drawTextBlob(labels, 0, 0, paint);
27     }
28 }
29 }  // END FIDDLE
30