1 // Copyright 2020 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(strokerect_gm, 1400, 740, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 constexpr SkScalar kStrokeWidth = 20;
7 constexpr SkPaint::Join gJoins[] = {SkPaint::kMiter_Join, SkPaint::kRound_Join,
8 SkPaint::kBevel_Join};
9 constexpr SkScalar W = 80;
10 constexpr SkScalar H = 80;
11 constexpr SkRect gRects[] = {
12 {0, 0, W, H},
13 {W, 0, 0, H},
14 {0, H, W, 0},
15 {0, 0, kStrokeWidth, H},
16 {0, 0, W, kStrokeWidth},
17 {0, 0, kStrokeWidth / 2, kStrokeWidth / 2},
18 {0, 0, W, 0},
19 {0, 0, 0, H},
20 {0, 0, 0, 0},
21 {0, 0, W, FLT_EPSILON},
22 {0, 0, FLT_EPSILON, H},
23 {0, 0, FLT_EPSILON, FLT_EPSILON},
24 };
25 canvas->translate(kStrokeWidth * 3 / 2, kStrokeWidth * 3 / 2);
26 for (int doFill = 0; doFill <= 1; ++doFill) {
27 SkPaint::Style style = doFill ? SkPaint::kStrokeAndFill_Style : SkPaint::kStroke_Style;
28 for (size_t i = 0; i < SK_ARRAY_COUNT(gJoins); ++i) {
29 SkPaint::Join join = gJoins[i];
30 for (size_t j = 0; j < SK_ARRAY_COUNT(gRects); ++j) {
31 SkAutoCanvasRestore acr(canvas, true);
32 canvas->translate(
33 j * (W + 2 * kStrokeWidth),
34 (i + doFill * SK_ARRAY_COUNT(gJoins)) * (H + 2 * kStrokeWidth));
35 const SkRect& rect = gRects[j];
36
37 SkPath path, fillPath;
38 path.addRect(rect);
39 SkPaint paint;
40
41 paint.setStrokeWidth(kStrokeWidth);
42 paint.setStyle(style);
43 paint.setStrokeJoin(join);
44 paint.getFillPath(path, &fillPath);
45
46 paint.setAntiAlias(true);
47 paint.setColor(0xFF8C8A8C);
48 canvas->drawRect(rect, paint);
49
50 paint.setStyle(SkPaint::kStroke_Style);
51 paint.setStrokeWidth(0);
52 paint.setColor(SK_ColorRED);
53 canvas->drawPath(fillPath, paint);
54
55 paint.setStrokeWidth(3);
56 paint.setStrokeJoin(SkPaint::kMiter_Join);
57 int n = fillPath.countPoints();
58 SkAutoTArray<SkPoint> points(n);
59 fillPath.getPoints(points.get(), n);
60 canvas->drawPoints(SkCanvas::kPoints_PointMode, n, points.get(), paint);
61 }
62 }
63 }
64 }
65 } // END FIDDLE
66