| 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=2973b05bfbb6b4c29332c8ac4fcf3995 |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Paint_nothingToDraw, 256, 256, true, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | auto debugster = [](const char* prefix, const SkPaint& p) -> void { |
| 8 | SkDebugf("%s nothing to draw: %s\n", prefix, |
| 9 | p.nothingToDraw() ? "true" : "false"); |
| 10 | }; |
| 11 | SkPaint paint; |
| 12 | debugster("initial", paint); |
| 13 | paint.setBlendMode(SkBlendMode::kDst); |
| 14 | debugster("blend dst", paint); |
| 15 | paint.setBlendMode(SkBlendMode::kSrcOver); |
| 16 | debugster("blend src over", paint); |
| 17 | paint.setAlpha(0); |
| 18 | debugster("alpha 0", paint); |
| 19 | } |
| 20 | } // END FIDDLE |