| 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=d84fce292d86c7d9ef37ae2d179c03c7 |
| Hal Canary | 66d1144 | 2019-03-19 15:54:16 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Point_normalize_2, 256, 256, 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 | const SkPoint lines[][2] = { {{ 30, 110 }, { 190, 30 }}, |
| 10 | {{ 120, 140 }, { 30, 220 }}}; |
| 11 | for (auto line : lines) { |
| 12 | canvas->drawLine(line[0], line[1], paint); |
| 13 | SkVector vector = line[1] - line[0]; |
| 14 | if (vector.normalize()) { |
| 15 | SkVector rotate90 = { -vector.fY, vector.fX }; |
| 16 | rotate90 *= 10.f; |
| 17 | canvas->drawLine(line[0] - rotate90, line[0] + rotate90, paint); |
| 18 | canvas->drawLine(line[1] - rotate90, line[1] + rotate90, paint); |
| 19 | } |
| 20 | } |
| 21 | } |
| 22 | } // END FIDDLE |