| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 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. |
| Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 3 | #include "tools/fiddle/examples.h" |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 4 | // HASH=c69cd2a590b5733c3cbc92cb9ceed3f5 |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Matrix_mapRectToQuad, 256, 192, false, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void 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 |