blob: c1e552c8c016d449901a14aa893bd2dca3ce4508 [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=c69cd2a590b5733c3cbc92cb9ceed3f5
REG_FIDDLE(Matrix_mapRectToQuad, 256, 192, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
SkMatrix matrix;
matrix.setRotate(60, 128, 128);
SkRect rect = {50, 50, 150, 150};
SkPoint pts[4];
matrix.mapRectToQuad(pts, rect);
for (int i = 0; i < 4; ++i) {
canvas->drawCircle(pts[i].fX, pts[i].fY, 3, paint);
}
canvas->concat(matrix);
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawRect(rect, paint);
}
} // END FIDDLE