commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "gm.h" |
| 9 | #include "SkAlphaThresholdFilter.h" |
| 10 | #include "SkRandom.h" |
| 11 | |
| 12 | #define WIDTH 500 |
| 13 | #define HEIGHT 500 |
| 14 | |
| 15 | namespace skiagm { |
| 16 | |
| 17 | class ImageAlphaThresholdGM : public GM { |
| 18 | public: |
| 19 | ImageAlphaThresholdGM() { |
| 20 | this->setBGColor(0xFFFFFFFF); |
| 21 | } |
| 22 | |
| 23 | protected: |
commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 24 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 25 | SkString onShortName() override { |
commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 26 | return SkString("imagealphathreshold"); |
| 27 | } |
| 28 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 29 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 30 | return SkISize::Make(WIDTH, HEIGHT); |
commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 31 | } |
| 32 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 33 | void onDraw(SkCanvas* canvas) override { |
commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 34 | SkIRect rects[2]; |
| 35 | rects[0] = SkIRect::MakeXYWH(0, 150, WIDTH, HEIGHT - 300); |
| 36 | rects[1] = SkIRect::MakeXYWH(150, 0, WIDTH - 300, HEIGHT); |
| 37 | SkRegion region; |
| 38 | region.setRects(rects, 2); |
| 39 | |
| 40 | SkMatrix matrix; |
| 41 | matrix.reset(); |
| 42 | matrix.setTranslate(WIDTH * .1f, HEIGHT * .1f); |
commit-bot@chromium.org | 9109e18 | 2014-01-07 16:04:01 +0000 | [diff] [blame] | 43 | matrix.postScale(.8f, .8f); |
commit-bot@chromium.org | 40eb3c1 | 2014-01-06 23:41:14 +0000 | [diff] [blame] | 44 | |
| 45 | canvas->concat(matrix); |
| 46 | |
| 47 | SkPaint paint; |
| 48 | paint.setImageFilter( |
| 49 | SkAlphaThresholdFilter::Create(region, 0.2f, 0.7f))->unref(); |
| 50 | canvas->saveLayer(NULL, &paint); |
| 51 | paint.setAntiAlias(true); |
| 52 | |
| 53 | SkPaint rect_paint; |
| 54 | rect_paint.setColor(0xFF0000FF); |
| 55 | canvas->drawRect(SkRect::MakeXYWH(0, 0, WIDTH / 2, HEIGHT / 2), |
| 56 | rect_paint); |
| 57 | rect_paint.setColor(0xBFFF0000); |
| 58 | canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, 0, WIDTH / 2, HEIGHT / 2), |
| 59 | rect_paint); |
| 60 | rect_paint.setColor(0x3F00FF00); |
| 61 | canvas->drawRect(SkRect::MakeXYWH(0, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), |
| 62 | rect_paint); |
| 63 | rect_paint.setColor(0x00000000); |
| 64 | canvas->drawRect(SkRect::MakeXYWH(WIDTH / 2, HEIGHT / 2, WIDTH / 2, HEIGHT / 2), |
| 65 | rect_paint); |
| 66 | |
| 67 | canvas->restore(); |
| 68 | } |
| 69 | |
| 70 | private: |
| 71 | typedef GM INHERITED; |
| 72 | }; |
| 73 | |
| 74 | ////////////////////////////////////////////////////////////////////////////// |
| 75 | |
| 76 | static GM* MyFactory(void*) { return new ImageAlphaThresholdGM; } |
| 77 | static GMRegistry reg(MyFactory); |
| 78 | |
| 79 | } |