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 | */ |
mike@reedtribe.org | 3d1cb97 | 2012-08-13 00:52:07 +0000 | [diff] [blame] | 7 | |
| 8 | #include "gm.h" |
robertphillips@google.com | b706117 | 2013-09-06 14:16:12 +0000 | [diff] [blame] | 9 | #include "SkBlurMask.h" |
| 10 | #include "SkBlurMaskFilter.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 11 | #include "SkReadBuffer.h" |
| 12 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkLayerRasterizer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 15 | static void r0(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
reed | efdfd51 | 2016-04-04 10:02:58 -0700 | [diff] [blame] | 16 | p.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, |
| 17 | SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(3)))); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 18 | rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 19 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 20 | p.setMaskFilter(nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | p.setStyle(SkPaint::kStroke_Style); |
| 22 | p.setStrokeWidth(SK_Scalar1); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 23 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 24 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 25 | p.setAlpha(0x11); |
| 26 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 27 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 28 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | } |
| 30 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 31 | static void r1(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
| 32 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 33 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | p.setAlpha(0x40); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 35 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | p.setStyle(SkPaint::kStroke_Style); |
| 37 | p.setStrokeWidth(SK_Scalar1*2); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 38 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 40 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 41 | static void r2(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 42 | p.setStyle(SkPaint::kStrokeAndFill_Style); |
| 43 | p.setStrokeWidth(SK_Scalar1*4); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 44 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 45 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 46 | p.setStyle(SkPaint::kStroke_Style); |
| 47 | p.setStrokeWidth(SK_Scalar1*3/2); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 48 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 49 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | } |
| 51 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 52 | static void r3(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | p.setStyle(SkPaint::kStroke_Style); |
| 54 | p.setStrokeWidth(SK_Scalar1*3); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 55 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 56 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 57 | p.setAlpha(0x20); |
| 58 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 59 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 60 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 61 | } |
| 62 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 63 | static void r4(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 64 | p.setAlpha(0x60); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 65 | rastBuilder->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 66 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 67 | p.setAlpha(0xFF); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 68 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 69 | rastBuilder->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 70 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 71 | p.setXfermode(nullptr); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 72 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | } |
| 74 | |
| 75 | #include "SkDiscretePathEffect.h" |
| 76 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 77 | static void r5(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
| 78 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 79 | |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 80 | p.setPathEffect(SkDiscretePathEffect::Make(SK_Scalar1*4, SK_Scalar1*3)); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 81 | p.setXfermodeMode(SkXfermode::kSrcOut_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 82 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | } |
| 84 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 85 | static void r6(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
| 86 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 87 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 88 | p.setAntiAlias(false); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 89 | SkLayerRasterizer::Builder rastBuilder2; |
| 90 | r5(&rastBuilder2, p); |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 91 | p.setRasterizer(rastBuilder2.detach()); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 92 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 93 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | #include "Sk2DPathEffect.h" |
| 97 | |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 98 | static sk_sp<SkPathEffect> MakeDotEffect(SkScalar radius, const SkMatrix& matrix) { |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 99 | SkPath path; |
| 100 | path.addCircle(0, 0, radius); |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 101 | return SkPath2DPathEffect::Make(matrix, path); |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 102 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 103 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 104 | static void r7(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 105 | SkMatrix lattice; |
| 106 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 107 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 108 | p.setPathEffect(MakeDotEffect(SK_Scalar1*4, lattice)); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 109 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 110 | } |
| 111 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 112 | static void r8(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
| 113 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 114 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 115 | SkMatrix lattice; |
| 116 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 117 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 118 | p.setPathEffect(MakeDotEffect(SK_Scalar1*2, lattice)); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 119 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 120 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 121 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 122 | p.setPathEffect(nullptr); |
| 123 | p.setXfermode(nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 124 | p.setStyle(SkPaint::kStroke_Style); |
| 125 | p.setStrokeWidth(SK_Scalar1); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 126 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 127 | } |
| 128 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 129 | static void r9(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) { |
| 130 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 131 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | SkMatrix lattice; |
| 133 | lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0); |
| 134 | lattice.postRotate(SkIntToScalar(30), 0, 0); |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 135 | p.setPathEffect(SkLine2DPathEffect::Make(SK_Scalar1*2, lattice)); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 136 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 137 | rastBuilder->addLayer(p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 138 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 139 | p.setPathEffect(nullptr); |
| 140 | p.setXfermode(nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 141 | p.setStyle(SkPaint::kStroke_Style); |
| 142 | p.setStrokeWidth(SK_Scalar1); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 143 | rastBuilder->addLayer(p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | } |
| 145 | |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 146 | typedef void (*raster_proc)(SkLayerRasterizer::Builder*, SkPaint&); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 147 | |
| 148 | static const raster_proc gRastProcs[] = { |
| 149 | r0, r1, r2, r3, r4, r5, r6, r7, r8, r9 |
| 150 | }; |
| 151 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 152 | #include "SkXfermode.h" |
| 153 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 154 | static void apply_shader(SkPaint* paint, int index) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | raster_proc proc = gRastProcs[index]; |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 156 | if (proc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 157 | SkPaint p; |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 158 | SkLayerRasterizer::Builder rastBuilder; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 159 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 160 | p.setAntiAlias(true); |
commit-bot@chromium.org | f792a1b | 2014-02-26 13:27:37 +0000 | [diff] [blame] | 161 | proc(&rastBuilder, p); |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 162 | paint->setRasterizer(rastBuilder.detach()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 164 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | #if 0 |
| 166 | SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 }; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 167 | paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(dir, SK_Scalar1/4, SkIntToScalar(4), SkIntToScalar(3)))->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 168 | #endif |
| 169 | paint->setColor(SK_ColorBLUE); |
| 170 | } |
| 171 | |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 172 | DEF_SIMPLE_GM(texteffects, canvas, 460, 680) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 173 | canvas->save(); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 174 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | SkPaint paint; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 176 | paint.setAntiAlias(true); |
caryclark | 1818acb | 2015-07-24 12:09:25 -0700 | [diff] [blame] | 177 | sk_tool_utils::set_portable_typeface(&paint); |
reed@android.com | 0bb6d06 | 2010-05-17 14:50:04 +0000 | [diff] [blame] | 178 | paint.setTextSize(SkIntToScalar(56)); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 179 | |
reed@android.com | 0bb6d06 | 2010-05-17 14:50:04 +0000 | [diff] [blame] | 180 | SkScalar x = SkIntToScalar(20); |
| 181 | SkScalar y = paint.getTextSize(); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 182 | |
mike@reedtribe.org | 3d1cb97 | 2012-08-13 00:52:07 +0000 | [diff] [blame] | 183 | SkString str("Hamburgefons"); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 184 | |
robertphillips@google.com | e9cd27d | 2013-10-16 17:48:11 +0000 | [diff] [blame] | 185 | for (int i = 0; i < static_cast<int>(SK_ARRAY_COUNT(gRastProcs)); i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | apply_shader(&paint, i); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 187 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 188 | // paint.setMaskFilter(nullptr); |
mike@reedtribe.org | 3d1cb97 | 2012-08-13 00:52:07 +0000 | [diff] [blame] | 189 | // paint.setColor(SK_ColorBLACK); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 190 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 191 | canvas->drawText(str.c_str(), str.size(), x, y, paint); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 192 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 193 | y += paint.getFontSpacing(); |
| 194 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 195 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | canvas->restore(); |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 197 | } |
caryclark | fb56218 | 2015-12-21 08:35:51 -0800 | [diff] [blame] | 198 | |
| 199 | DEF_SIMPLE_GM(textunderstrike, canvas, 460, 680) { |
| 200 | canvas->clear(SK_ColorYELLOW); |
| 201 | SkPaint paint; |
| 202 | sk_tool_utils::set_portable_typeface(&paint); |
| 203 | paint.setTextSize(50); |
| 204 | paint.setStrokeWidth(5); |
| 205 | paint.setAntiAlias(true); |
| 206 | |
| 207 | auto drawText = [&]() { |
| 208 | paint.setStyle(SkPaint::kFill_Style); |
| 209 | canvas->drawText("Hello", 5, 100, 50, paint); |
| 210 | paint.setStyle(SkPaint::kStroke_Style); |
| 211 | canvas->drawText("Hello", 5, 100, 100, paint); |
| 212 | canvas->translate(0, 100); |
| 213 | }; |
| 214 | |
| 215 | drawText(); |
| 216 | paint.setUnderlineText(true); |
| 217 | drawText(); |
| 218 | paint.setUnderlineText(false); |
| 219 | paint.setStrikeThruText(true); |
| 220 | drawText(); |
| 221 | paint.setUnderlineText(true); |
| 222 | drawText(); |
| 223 | paint.setColor(SK_ColorWHITE); |
| 224 | paint.setStyle(SkPaint::kStroke_Style); |
| 225 | canvas->drawText("Hello", 5, 100, 50, paint); |
| 226 | paint.setColor(SK_ColorBLUE); |
| 227 | paint.setStyle(SkPaint::kFill_Style); |
| 228 | canvas->drawText("Hello", 5, 100, 50, paint); |
| 229 | } |
caryclark | 0449bcf | 2016-02-09 13:25:45 -0800 | [diff] [blame] | 230 | |
| 231 | static SkPath create_underline(const SkTDArray<SkScalar>& intersections, |
| 232 | SkScalar last, SkScalar finalPos, |
| 233 | SkScalar uPos, SkScalar uWidth, SkScalar textSize) { |
| 234 | SkPath underline; |
| 235 | SkScalar end = last; |
| 236 | for (int index = 0; index < intersections.count(); index += 2) { |
| 237 | SkScalar start = intersections[index] - uWidth;; |
| 238 | end = intersections[index + 1] + uWidth; |
| 239 | if (start > last && last + textSize / 12 < start) { |
| 240 | underline.moveTo(last, uPos); |
| 241 | underline.lineTo(start, uPos); |
| 242 | } |
| 243 | last = end; |
| 244 | } |
| 245 | if (end < finalPos) { |
| 246 | underline.moveTo(end, uPos); |
| 247 | underline.lineTo(finalPos, uPos); |
| 248 | } |
| 249 | return underline; |
| 250 | } |
| 251 | |
| 252 | static void find_intercepts(const char* test, size_t len, SkScalar x, SkScalar y, |
| 253 | const SkPaint& paint, SkScalar uWidth, SkTDArray<SkScalar>* intersections) { |
| 254 | SkScalar uPos = y + uWidth; |
| 255 | SkScalar bounds[2] = { uPos - uWidth / 2, uPos + uWidth / 2 }; |
| 256 | int count = paint.getTextIntercepts(test, len, x, y, bounds, nullptr); |
| 257 | SkASSERT(!(count % 2)); |
| 258 | if (count) { |
| 259 | intersections->setCount(count); |
| 260 | paint.getTextIntercepts(test, len, x, y, bounds, intersections->begin()); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | DEF_SIMPLE_GM(fancyunderline, canvas, 900, 1350) { |
| 265 | SkPaint paint; |
| 266 | paint.setAntiAlias(true); |
| 267 | const char* fam[] = { "sans-serif", "serif", "monospace" }; |
| 268 | const char test[] = "aAjJgGyY_|{-(~[,]qQ}pP}zZ"; |
| 269 | SkPoint textPt = { 10, 80 }; |
| 270 | for (int font = 0; font < 3; ++font) { |
mboc | ee6a991 | 2016-05-31 11:42:36 -0700 | [diff] [blame] | 271 | sk_tool_utils::set_portable_typeface(&paint, fam[font]); |
caryclark | 0449bcf | 2016-02-09 13:25:45 -0800 | [diff] [blame] | 272 | for (SkScalar textSize = 100; textSize > 10; textSize -= 20) { |
| 273 | paint.setTextSize(textSize); |
| 274 | const SkScalar uWidth = textSize / 15; |
| 275 | paint.setStrokeWidth(uWidth); |
| 276 | paint.setStyle(SkPaint::kFill_Style); |
| 277 | canvas->drawText(test, sizeof(test) - 1, textPt.fX, textPt.fY, paint); |
| 278 | |
| 279 | SkTDArray<SkScalar> intersections; |
| 280 | find_intercepts(test, sizeof(test) - 1, textPt.fX, textPt.fY, paint, uWidth, |
| 281 | &intersections); |
| 282 | |
| 283 | SkScalar start = textPt.fX; |
| 284 | SkScalar end = paint.measureText(test, sizeof(test) - 1) + textPt.fX; |
| 285 | SkScalar uPos = textPt.fY + uWidth; |
| 286 | SkPath underline = create_underline(intersections, start, end, uPos, uWidth, textSize); |
| 287 | paint.setStyle(SkPaint::kStroke_Style); |
| 288 | canvas->drawPath(underline, paint); |
| 289 | |
| 290 | canvas->translate(0, textSize * 1.3f); |
| 291 | } |
| 292 | canvas->translate(0, 60); |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | static void find_intercepts(const char* test, size_t len, const SkPoint* pos, const SkPaint& paint, |
| 297 | SkScalar uWidth, SkTDArray<SkScalar>* intersections) { |
| 298 | SkScalar uPos = pos[0].fY + uWidth; |
| 299 | SkScalar bounds[2] = { uPos - uWidth / 2, uPos + uWidth / 2 }; |
| 300 | int count = paint.getPosTextIntercepts(test, len, pos, bounds, nullptr); |
| 301 | SkASSERT(!(count % 2)); |
| 302 | if (count) { |
| 303 | intersections->setCount(count); |
| 304 | paint.getPosTextIntercepts(test, len, pos, bounds, intersections->begin()); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | DEF_SIMPLE_GM(fancyposunderline, canvas, 900, 1350) { |
| 309 | SkPaint paint; |
| 310 | paint.setAntiAlias(true); |
| 311 | const char* fam[] = { "sans-serif", "serif", "monospace" }; |
| 312 | const char test[] = "aAjJgGyY_|{-(~[,]qQ}pP}zZ"; |
| 313 | SkPoint textPt = { 10, 80 }; |
| 314 | for (int font = 0; font < 3; ++font) { |
mboc | ee6a991 | 2016-05-31 11:42:36 -0700 | [diff] [blame] | 315 | sk_tool_utils::set_portable_typeface(&paint, fam[font]); |
caryclark | 0449bcf | 2016-02-09 13:25:45 -0800 | [diff] [blame] | 316 | for (SkScalar textSize = 100; textSize > 10; textSize -= 20) { |
| 317 | paint.setTextSize(textSize); |
| 318 | const SkScalar uWidth = textSize / 15; |
| 319 | paint.setStrokeWidth(uWidth); |
| 320 | paint.setStyle(SkPaint::kFill_Style); |
| 321 | int widthCount = paint.getTextWidths(test, sizeof(test) - 1, nullptr); |
| 322 | SkTDArray<SkScalar> widths; |
| 323 | widths.setCount(widthCount); |
| 324 | (void) paint.getTextWidths(test, sizeof(test) - 1, widths.begin()); |
| 325 | SkTDArray<SkPoint> pos; |
| 326 | pos.setCount(widthCount); |
| 327 | SkScalar posX = textPt.fX; |
| 328 | for (int index = 0; index < widthCount; ++index) { |
| 329 | pos[index].fX = posX; |
| 330 | posX += widths[index]; |
| 331 | pos[index].fY = textPt.fY + (textSize / 25) * (index % 4); |
| 332 | } |
| 333 | canvas->drawPosText(test, sizeof(test) - 1, pos.begin(), paint); |
| 334 | |
| 335 | SkTDArray<SkScalar> intersections; |
| 336 | find_intercepts(test, sizeof(test) - 1, pos.begin(), paint, uWidth, &intersections); |
| 337 | |
| 338 | SkScalar start = textPt.fX; |
| 339 | SkScalar end = posX; |
| 340 | SkScalar uPos = textPt.fY + uWidth; |
| 341 | SkPath underline = create_underline(intersections, start, end, uPos, uWidth, textSize); |
| 342 | paint.setStyle(SkPaint::kStroke_Style); |
| 343 | canvas->drawPath(underline, paint); |
| 344 | |
| 345 | canvas->translate(0, textSize * 1.3f); |
| 346 | } |
| 347 | canvas->translate(0, 60); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | DEF_SIMPLE_GM(fancyunderlinebars, canvas, 1500, 460) { |
| 352 | SkPaint paint; |
| 353 | paint.setAntiAlias(true); |
| 354 | const char test[] = " .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_ .}]_"; |
| 355 | SkPoint textPt = { 10, 80 }; |
| 356 | sk_tool_utils::set_portable_typeface(&paint, "serif"); |
| 357 | for (SkScalar textSize = 100; textSize > 10; textSize -= 20) { |
| 358 | paint.setTextSize(textSize); |
| 359 | SkScalar uWidth = textSize / 15; |
| 360 | paint.setStrokeWidth(uWidth); |
| 361 | paint.setStyle(SkPaint::kFill_Style); |
| 362 | int widthCount = paint.getTextWidths(test, sizeof(test) - 1, nullptr); |
| 363 | SkTDArray<SkScalar> widths; |
| 364 | widths.setCount(widthCount); |
| 365 | (void) paint.getTextWidths(test, sizeof(test) - 1, widths.begin()); |
| 366 | SkTDArray<SkPoint> pos; |
| 367 | pos.setCount(widthCount); |
| 368 | SkScalar posX = textPt.fX; |
| 369 | pos[0] = textPt; |
| 370 | posX += widths[0]; |
| 371 | for (int index = 1; index < widthCount; ++index) { |
| 372 | pos[index].fX = posX; |
| 373 | posX += widths[index]; |
| 374 | pos[index].fY = textPt.fY - (textSize / 50) * (index / 5) + textSize / 50 * 4; |
| 375 | } |
| 376 | canvas->drawPosText(test, sizeof(test) - 1, pos.begin(), paint); |
| 377 | |
| 378 | SkTDArray<SkScalar> intersections; |
| 379 | find_intercepts(test, sizeof(test) - 1, pos.begin(), paint, uWidth, &intersections); |
| 380 | |
| 381 | SkScalar start = textPt.fX; |
| 382 | SkScalar end = posX; |
| 383 | SkScalar uPos = pos[0].fY + uWidth; |
| 384 | SkPath underline = create_underline(intersections, start, end, uPos, uWidth, textSize); |
| 385 | paint.setStyle(SkPaint::kStroke_Style); |
| 386 | canvas->drawPath(underline, paint); |
| 387 | canvas->translate(0, textSize * 1.3f); |
| 388 | } |
| 389 | } |