| 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=a01e533dc7ab34ed728dc4e7a5f1f0ee |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(IPoint_subtractfrom_operator, 256, 64, false, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | auto draw_lines = [=](const SkIPoint pts[], size_t count, SkPaint& paint) -> void { |
| 8 | for (size_t i = 0; i < count - 1; ++i) { |
| 9 | SkPoint p0, p1; |
| 10 | p0.iset(pts[i]); |
| 11 | p1.iset(pts[i + 1]); |
| 12 | canvas->drawLine(p0, p1, paint); |
| 13 | } |
| 14 | }; |
| 15 | SkIPoint points[] = { { 3, 1 }, { 4, 2 }, { 5, 1 }, { 7, 3 } }; |
| 16 | SkPaint paint; |
| 17 | paint.setAntiAlias(true); |
| 18 | paint.setStyle(SkPaint::kStroke_Style); |
| 19 | canvas->scale(30, 15); |
| 20 | draw_lines(points, SK_ARRAY_COUNT(points), paint); |
| 21 | points[1] -= {1, 1}; |
| 22 | points[2] -= {-1, -1}; |
| 23 | paint.setColor(SK_ColorRED); |
| 24 | draw_lines(points, SK_ARRAY_COUNT(points), paint); |
| 25 | } |
| 26 | } // END FIDDLE |