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=9e50185d502dc6903783679a84106089
5 REG_FIDDLE(Matrix_mapXY, 256, 256, false, 0) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 SkPaint paint;
8 paint.setAntiAlias(true);
9 SkMatrix matrix;
10 matrix.setRotate(60, 128, 128);
11 SkPoint lines[] = {{50, 50}, {150, 50}, {150, 150}};
12 for (size_t i = 0; i < SK_ARRAY_COUNT(lines); ++i) {
13 SkPoint pt;
14 matrix.mapXY(lines[i].fX, lines[i].fY, &pt);
15 canvas->drawCircle(pt.fX, pt.fY, 3, paint);
16 }
17 canvas->concat(matrix);
18 canvas->drawPoints(SkCanvas::kPolygon_PointMode, SK_ARRAY_COUNT(lines), lines, paint);
19 }
20 } // END FIDDLE
21