1// Copyright 2019 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// HASH=c69cd2a590b5733c3cbc92cb9ceed3f5
5REG_FIDDLE(Matrix_mapRectToQuad, 256, 192, false, 0) {
6void draw(SkCanvas* canvas) {
7    SkPaint paint;
8    paint.setAntiAlias(true);
9    SkMatrix matrix;
10    matrix.setRotate(60, 128, 128);
11    SkRect rect = {50, 50, 150, 150};
12    SkPoint pts[4];
13    matrix.mapRectToQuad(pts, rect);
14    for (int i = 0; i < 4; ++i) {
15        canvas->drawCircle(pts[i].fX, pts[i].fY, 3, paint);
16    }
17    canvas->concat(matrix);
18    paint.setStyle(SkPaint::kStroke_Style);
19    canvas->drawRect(rect, paint);
20}
21}  // END FIDDLE
22