epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame^] | 8 | #include "include/core/SkCanvas.h" |
| 9 | #include "include/core/SkColorFilter.h" |
| 10 | #include "include/core/SkColorPriv.h" |
| 11 | #include "include/core/SkGraphics.h" |
| 12 | #include "include/core/SkPath.h" |
| 13 | #include "include/core/SkRegion.h" |
| 14 | #include "include/core/SkShader.h" |
| 15 | #include "include/core/SkTime.h" |
| 16 | #include "include/core/SkTypeface.h" |
| 17 | #include "include/effects/SkGradientShader.h" |
| 18 | #include "include/utils/SkParsePath.h" |
| 19 | #include "samplecode/Sample.h" |
| 20 | #include "src/utils/SkUTF.h" |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 21 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame^] | 22 | #include "src/core/SkGeometry.h" |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 23 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 24 | class ConcavePathView : public Sample { |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 25 | public: |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 26 | ConcavePathView() {} |
| 27 | |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 28 | protected: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 29 | virtual bool onQuery(Sample::Event* evt) { |
| 30 | if (Sample::TitleQ(*evt)) { |
| 31 | Sample::TitleR(evt, "ConcavePaths"); |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 32 | return true; |
| 33 | } |
| 34 | return this->INHERITED::onQuery(evt); |
| 35 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 36 | |
| 37 | virtual void onDrawContent(SkCanvas* canvas) { |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 38 | SkPaint paint; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 39 | |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 40 | paint.setAntiAlias(true); |
| 41 | paint.setStyle(SkPaint::kFill_Style); |
| 42 | |
| 43 | // Concave test |
| 44 | if (1) { |
| 45 | SkPath path; |
| 46 | canvas->translate(0, 0); |
| 47 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 48 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 49 | path.lineTo(SkIntToScalar(30), SkIntToScalar(30)); |
| 50 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 51 | canvas->drawPath(path, paint); |
| 52 | } |
| 53 | // Reverse concave test |
| 54 | if (1) { |
| 55 | SkPath path; |
| 56 | canvas->save(); |
| 57 | canvas->translate(100, 0); |
| 58 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 59 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 60 | path.lineTo(SkIntToScalar(30), SkIntToScalar(30)); |
| 61 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 62 | canvas->drawPath(path, paint); |
| 63 | canvas->restore(); |
| 64 | } |
| 65 | // Bowtie (intersection) |
| 66 | if (1) { |
| 67 | SkPath path; |
| 68 | canvas->save(); |
| 69 | canvas->translate(200, 0); |
| 70 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 71 | path.lineTo(SkIntToScalar(80), SkIntToScalar(80)); |
| 72 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 73 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 74 | canvas->drawPath(path, paint); |
| 75 | canvas->restore(); |
| 76 | } |
| 77 | // "fake" bowtie (concave, but no intersection) |
| 78 | if (1) { |
| 79 | SkPath path; |
| 80 | canvas->save(); |
| 81 | canvas->translate(300, 0); |
| 82 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 83 | path.lineTo(SkIntToScalar(50), SkIntToScalar(40)); |
| 84 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 85 | path.lineTo(SkIntToScalar(80), SkIntToScalar(80)); |
| 86 | path.lineTo(SkIntToScalar(50), SkIntToScalar(60)); |
| 87 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 88 | canvas->drawPath(path, paint); |
| 89 | canvas->restore(); |
| 90 | } |
| 91 | // Fish test (intersection/concave) |
| 92 | if (1) { |
| 93 | SkPath path; |
| 94 | canvas->save(); |
| 95 | canvas->translate(0, 100); |
| 96 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 97 | path.lineTo(SkIntToScalar(80), SkIntToScalar(80)); |
| 98 | path.lineTo(SkIntToScalar(70), SkIntToScalar(50)); |
| 99 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 100 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 101 | path.lineTo(SkIntToScalar(0), SkIntToScalar(50)); |
| 102 | canvas->drawPath(path, paint); |
| 103 | canvas->restore(); |
| 104 | } |
| 105 | // Collinear test |
| 106 | if (1) { |
| 107 | SkPath path; |
| 108 | canvas->save(); |
| 109 | canvas->translate(100, 100); |
| 110 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 111 | path.lineTo(SkIntToScalar(50), SkIntToScalar(20)); |
| 112 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 113 | path.lineTo(SkIntToScalar(50), SkIntToScalar(80)); |
| 114 | canvas->drawPath(path, paint); |
| 115 | canvas->restore(); |
| 116 | } |
| 117 | // Hole test |
| 118 | if (1) { |
| 119 | SkPath path; |
| 120 | canvas->save(); |
| 121 | canvas->translate(200, 100); |
| 122 | path.moveTo(SkIntToScalar(20), SkIntToScalar(20)); |
| 123 | path.lineTo(SkIntToScalar(80), SkIntToScalar(20)); |
| 124 | path.lineTo(SkIntToScalar(80), SkIntToScalar(80)); |
| 125 | path.lineTo(SkIntToScalar(20), SkIntToScalar(80)); |
| 126 | path.moveTo(SkIntToScalar(30), SkIntToScalar(30)); |
| 127 | path.lineTo(SkIntToScalar(30), SkIntToScalar(70)); |
| 128 | path.lineTo(SkIntToScalar(70), SkIntToScalar(70)); |
| 129 | path.lineTo(SkIntToScalar(70), SkIntToScalar(30)); |
| 130 | canvas->drawPath(path, paint); |
| 131 | canvas->restore(); |
| 132 | } |
| 133 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 134 | |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 135 | private: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 136 | typedef Sample INHERITED; |
senorblanco@chromium.org | 129b8e3 | 2011-06-15 17:52:09 +0000 | [diff] [blame] | 137 | }; |
| 138 | |
| 139 | ////////////////////////////////////////////////////////////////////////////// |
| 140 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 141 | DEF_SAMPLE( return new ConcavePathView(); ) |