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