blob: 4461f2ede82c190df4b2623aab658cb6b0c75744 [file] [log] [blame]
// Copyright 2019 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"
// HASH=935c8f8b9782d297a73d7186f6ef7945
REG_FIDDLE(Canvas_drawTextRSXform, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
const int iterations = 26;
SkRSXform transforms[iterations];
char alphabet[iterations];
SkScalar angle = 0;
SkScalar scale = 1;
for (size_t i = 0; i < std::size(transforms); ++i) {
const SkScalar s = SkScalarSin(angle) * scale;
const SkScalar c = SkScalarCos(angle) * scale;
transforms[i] = SkRSXform::Make(-c, -s, -s * 16, c * 16);
angle += .45f;
scale += .2f;
alphabet[i] = 'A' + i;
}
SkPaint paint;
SkFont font(nullptr, 20);
auto spiral = SkTextBlob::MakeFromRSXform(alphabet, sizeof(alphabet), transforms, font);
canvas->drawTextBlob(spiral, 110, 138, paint);
}
} // END FIDDLE