skia2/docs/examples/skpaint_dash_path_effect.cpp
Hal Canary 6c8422c671 add more docs/examples from named fiddles.
ignore offscreen, srgb, and animated fiddles for now.

Change-Id: I923131b684865698e6cda138b004930e11f504d5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263713
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2020-01-14 19:22:26 +00:00

28 lines
939 B
C++

// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
REG_FIDDLE(skpaint_dash_path_effect, 256, 256, false, 0) {
SkPath star() {
const SkScalar R = 115.2f, C = 128.0f;
SkPath path;
path.moveTo(C + R, C);
for (int i = 1; i < 8; ++i) {
SkScalar a = 2.6927937f * i;
path.lineTo(C + R * cos(a), C + R * sin(a));
}
return path;
}
void draw(SkCanvas* canvas) {
const SkScalar intervals[] = {10.0f, 5.0f, 2.0f, 5.0f};
size_t count = sizeof(intervals) / sizeof(intervals[0]);
SkPaint paint;
paint.setPathEffect(SkDashPathEffect::Make(intervals, count, 0.0f));
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(2.0f);
paint.setAntiAlias(true);
canvas->clear(SK_ColorWHITE);
SkPath path(star());
canvas->drawPath(path, paint);
}
} // END FIDDLE