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=f99dcb00296d0c56b6c0e178e94b3534
5 REG_FIDDLE(Matrix_mapPoints, 256, 256, false, 0) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 SkMatrix matrix;
8 matrix.reset();
9 const int count = 4;
10 SkPoint src[count];
11 matrix.mapRectToQuad(src, {40, 70, 180, 220} );
12 SkPaint paint;
13 paint.setARGB(77, 23, 99, 154);
14 for (int i = 0; i < 5; ++i) {
15 SkPoint dst[count];
16 matrix.mapPoints(dst, src, count);
17 canvas->drawPoints(SkCanvas::kPolygon_PointMode, count, dst, paint);
18 matrix.preRotate(35, 128, 128);
19 }
20 }
21 } // END FIDDLE
22