skia2/docs/examples/radial_gradient_test.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

25 lines
893 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(radial_gradient_test, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
#define SIZE 121
SkScalar half = SIZE * 0.5f;
const SkColor preColor = 0xFFFF0000; // clamp color before start
const SkColor postColor = 0xFF0000FF; // clamp color after end
const SkColor color0 = 0xFF000000;
const SkColor color1 = 0xFF00FF00;
SkColor cs[] = {preColor, color0, color1, postColor};
SkScalar pos[] = {0, 0, 1, 1};
auto s = SkGradientShader::MakeRadial({half, half}, half - 10, cs, pos, 4,
SkTileMode::kClamp);
SkPaint p;
const SkRect rect = SkRect::MakeWH(SIZE, SIZE);
p.setShader(s);
canvas->drawRect(rect, p);
}
} // END FIDDLE