xref: /aosp_15_r20/external/skia/docs/examples/Canvas_drawPoints.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(Canvas_drawPoints, 256, 200, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     paint.setAntiAlias(true);
8     paint.setStyle(SkPaint::kStroke_Style);
9     paint.setStrokeWidth(10);
10     paint.setColor(0x80349a45);
11     const SkPoint points[] = {{32, 16}, {48, 48}, {16, 32}};
12     const SkPaint::Join join[] = { SkPaint::kRound_Join,
13                                    SkPaint::kMiter_Join,
14                                    SkPaint::kBevel_Join };
15     int joinIndex = 0;
16     SkPath path;
17     path.addPoly(points, 3, false);
18     for (const auto cap : { SkPaint::kRound_Cap, SkPaint::kSquare_Cap, SkPaint::kButt_Cap } ) {
19         paint.setStrokeCap(cap);
20         paint.setStrokeJoin(join[joinIndex++]);
21         for (const auto mode : { SkCanvas::kPoints_PointMode,
22                                  SkCanvas::kLines_PointMode,
23                                  SkCanvas::kPolygon_PointMode } ) {
24             canvas->drawPoints(mode, 3, points, paint);
25             canvas->translate(64, 0);
26         }
27         canvas->drawPath(path, paint);
28         canvas->translate(-192, 64);
29     }
30 }
31 }  // END FIDDLE
32