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 | */ |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 7 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 8 | #include "Sample.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | #include "SkCanvas.h" |
| 10 | #include "SkBlurMaskFilter.h" |
| 11 | #include "SkCamera.h" |
| 12 | #include "SkColorFilter.h" |
| 13 | #include "SkColorPriv.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | #include "SkGradientShader.h" |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 15 | #include "SkImage.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkInterpolator.h" |
| 17 | #include "SkMaskFilter.h" |
| 18 | #include "SkPath.h" |
| 19 | #include "SkRegion.h" |
| 20 | #include "SkShader.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | #include "SkTime.h" |
| 22 | #include "SkTypeface.h" |
Hal Canary | ea60b95 | 2018-08-21 11:45:46 -0400 | [diff] [blame] | 23 | #include "SkUTF.h" |
Mike Reed | ebfce6d | 2016-12-12 10:02:12 -0500 | [diff] [blame] | 24 | #include "SkClipOpPriv.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 25 | |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 26 | static void make_paint(SkPaint* paint, const SkMatrix& localMatrix) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 27 | SkColor colors[] = { 0, SK_ColorWHITE }; |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 28 | SkPoint pts[] = { { 0, 0 }, { 0, SK_Scalar1*20 } }; |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 29 | paint->setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2, |
| 30 | SkShader::kClamp_TileMode, 0, &localMatrix)); |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 31 | paint->setBlendMode(SkBlendMode::kDstIn); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | } |
| 33 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | // test drawing with strips of fading gradient above and below |
| 35 | static void test_fade(SkCanvas* canvas) { |
| 36 | SkAutoCanvasRestore ar(canvas, true); |
| 37 | |
| 38 | SkRect r; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 39 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | SkPaint p; |
| 41 | p.setAlpha(0x88); |
| 42 | |
commit-bot@chromium.org | e61a86c | 2013-11-18 16:03:59 +0000 | [diff] [blame] | 43 | SkAutoCanvasRestore ar2(canvas, false); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | |
| 45 | // create the layers |
| 46 | |
| 47 | r.set(0, 0, SkIntToScalar(100), SkIntToScalar(100)); |
| 48 | canvas->clipRect(r); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 49 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | r.fBottom = SkIntToScalar(20); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 51 | canvas->saveLayer(&r, nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | |
| 53 | r.fTop = SkIntToScalar(80); |
| 54 | r.fBottom = SkIntToScalar(100); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 55 | canvas->saveLayer(&r, nullptr); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 56 | |
| 57 | // now draw the "content" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 58 | |
| 59 | if (true) { |
| 60 | r.set(0, 0, SkIntToScalar(100), SkIntToScalar(100)); |
| 61 | |
| 62 | canvas->saveLayerAlpha(&r, 0x80); |
| 63 | |
| 64 | SkPaint p; |
| 65 | p.setColor(SK_ColorRED); |
| 66 | p.setAntiAlias(true); |
| 67 | canvas->drawOval(r, p); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 68 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | canvas->restore(); |
| 70 | } else { |
| 71 | r.set(0, 0, SkIntToScalar(100), SkIntToScalar(100)); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 72 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | SkPaint p; |
| 74 | p.setColor(SK_ColorRED); |
| 75 | p.setAntiAlias(true); |
| 76 | canvas->drawOval(r, p); |
| 77 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 78 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 79 | // return; |
| 80 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | // now apply an effect |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 82 | SkMatrix m; |
| 83 | m.setScale(SK_Scalar1, -SK_Scalar1); |
| 84 | m.postTranslate(0, SkIntToScalar(100)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 85 | |
| 86 | SkPaint paint; |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 87 | make_paint(&paint, m); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 88 | r.set(0, 0, SkIntToScalar(100), SkIntToScalar(20)); |
| 89 | // SkDebugf("--------- draw top grad\n"); |
| 90 | canvas->drawRect(r, paint); |
| 91 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | r.fTop = SkIntToScalar(80); |
| 93 | r.fBottom = SkIntToScalar(100); |
| 94 | // SkDebugf("--------- draw bot grad\n"); |
| 95 | canvas->drawRect(r, paint); |
| 96 | } |
| 97 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 98 | class LayersView : public Sample { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | public: |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 100 | LayersView() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 101 | |
| 102 | protected: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 103 | bool onQuery(Sample::Event* evt) override { |
| 104 | if (Sample::TitleQ(*evt)) { |
| 105 | Sample::TitleR(evt, "Layers"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 106 | return true; |
| 107 | } |
| 108 | return this->INHERITED::onQuery(evt); |
| 109 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 110 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 111 | void drawBG(SkCanvas* canvas) { |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 112 | canvas->drawColor(SK_ColorGRAY); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 113 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 114 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 115 | void onDrawContent(SkCanvas* canvas) override { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 116 | this->drawBG(canvas); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 117 | |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 118 | if (true) { |
| 119 | SkRect r; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 120 | r.set(SkIntToScalar(0), SkIntToScalar(0), |
| 121 | SkIntToScalar(220), SkIntToScalar(120)); |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 122 | SkPaint p; |
| 123 | canvas->saveLayer(&r, &p); |
| 124 | canvas->drawColor(0xFFFF0000); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 125 | p.setAlpha(0); // or 0 |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 126 | p.setBlendMode(SkBlendMode::kSrc); |
reed@android.com | 149e2f6 | 2009-05-22 14:39:03 +0000 | [diff] [blame] | 127 | canvas->drawOval(r, p); |
| 128 | canvas->restore(); |
| 129 | return; |
| 130 | } |
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 | if (false) { |
| 133 | SkRect r; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 134 | r.set(SkIntToScalar(0), SkIntToScalar(0), |
| 135 | SkIntToScalar(220), SkIntToScalar(120)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | SkPaint p; |
| 137 | p.setAlpha(0x88); |
| 138 | p.setAntiAlias(true); |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 139 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 140 | if (true) { |
| 141 | canvas->saveLayer(&r, &p); |
| 142 | p.setColor(0xFFFF0000); |
| 143 | canvas->drawOval(r, p); |
| 144 | canvas->restore(); |
| 145 | } |
| 146 | |
| 147 | p.setColor(0xFF0000FF); |
| 148 | r.offset(SkIntToScalar(20), SkIntToScalar(50)); |
| 149 | canvas->drawOval(r, p); |
| 150 | } |
| 151 | |
| 152 | if (false) { |
| 153 | SkPaint p; |
| 154 | p.setAlpha(0x88); |
| 155 | p.setAntiAlias(true); |
| 156 | |
| 157 | canvas->translate(SkIntToScalar(300), 0); |
| 158 | |
| 159 | SkRect r; |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 160 | r.set(SkIntToScalar(0), SkIntToScalar(0), |
| 161 | SkIntToScalar(220), SkIntToScalar(60)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 162 | |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 163 | canvas->saveLayer(&r, &p); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 164 | |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 165 | r.set(SkIntToScalar(0), SkIntToScalar(0), |
| 166 | SkIntToScalar(220), SkIntToScalar(120)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 167 | p.setColor(SK_ColorBLUE); |
| 168 | canvas->drawOval(r, p); |
| 169 | canvas->restore(); |
| 170 | return; |
| 171 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 172 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 173 | test_fade(canvas); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 174 | } |
rmistry@google.com | ae933ce | 2012-08-23 18:19:56 +0000 | [diff] [blame] | 175 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 176 | private: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 177 | typedef Sample INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 178 | }; |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 179 | DEF_SAMPLE( return new LayersView; ) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 180 | |
| 181 | ////////////////////////////////////////////////////////////////////////////// |
| 182 | |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 183 | #include "SkBlurImageFilter.h" |
| 184 | #include "SkMatrixConvolutionImageFilter.h" |
| 185 | #include "SkMorphologyImageFilter.h" |
| 186 | |
| 187 | #include "Resources.h" |
| 188 | #include "SkAnimTimer.h" |
| 189 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 190 | class BackdropView : public Sample { |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 191 | SkPoint fCenter; |
| 192 | SkScalar fAngle; |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 193 | sk_sp<SkImage> fImage; |
robertphillips | fc11b0a | 2016-04-05 09:09:36 -0700 | [diff] [blame] | 194 | sk_sp<SkImageFilter> fFilter; |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 195 | public: |
| 196 | BackdropView() { |
| 197 | fCenter.set(200, 150); |
| 198 | fAngle = 0; |
Hal Canary | c465d13 | 2017-12-08 10:21:31 -0500 | [diff] [blame] | 199 | fImage = GetResourceAsImage("images/mandrill_512.png"); |
robertphillips | fc11b0a | 2016-04-05 09:09:36 -0700 | [diff] [blame] | 200 | fFilter = SkDilateImageFilter::Make(8, 8, nullptr); |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | protected: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 204 | bool onQuery(Sample::Event* evt) override { |
| 205 | if (Sample::TitleQ(*evt)) { |
| 206 | Sample::TitleR(evt, "Backdrop"); |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 207 | return true; |
| 208 | } |
| 209 | return this->INHERITED::onQuery(evt); |
| 210 | } |
| 211 | |
| 212 | void onDrawContent(SkCanvas* canvas) override { |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 213 | canvas->drawImage(fImage.get(), 0, 0, nullptr); |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 214 | |
| 215 | const SkScalar w = 250; |
| 216 | const SkScalar h = 150; |
| 217 | SkPath path; |
| 218 | path.addOval(SkRect::MakeXYWH(-w/2, -h/2, w, h)); |
| 219 | SkMatrix m; |
| 220 | m.setRotate(fAngle); |
| 221 | m.postTranslate(fCenter.x(), fCenter.y()); |
| 222 | path.transform(m); |
| 223 | |
Mike Reed | c1f7774 | 2016-12-09 09:00:50 -0500 | [diff] [blame] | 224 | canvas->clipPath(path, kIntersect_SkClipOp, true); |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 225 | const SkRect bounds = path.getBounds(); |
| 226 | |
| 227 | SkPaint paint; |
| 228 | paint.setAlpha(0xCC); |
Florin Malita | 53f77bd | 2017-04-28 13:48:37 -0400 | [diff] [blame] | 229 | canvas->saveLayer({ &bounds, &paint, fFilter.get(), nullptr, nullptr, 0 }); |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 230 | |
| 231 | canvas->restore(); |
| 232 | } |
| 233 | |
| 234 | bool onAnimate(const SkAnimTimer& timer) override { |
| 235 | fAngle = SkDoubleToScalar(fmod(timer.secs() * 360 / 5, 360)); |
| 236 | return true; |
| 237 | } |
| 238 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 239 | Sample::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) override { |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 240 | return new Click(this); |
| 241 | } |
| 242 | |
| 243 | bool onClick(Click* click) override { |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 244 | fCenter = click->fCurr; |
| 245 | return this->INHERITED::onClick(click); |
| 246 | } |
| 247 | |
| 248 | private: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 249 | typedef Sample INHERITED; |
reed | bfd5f17 | 2016-01-07 11:28:08 -0800 | [diff] [blame] | 250 | }; |
| 251 | DEF_SAMPLE( return new BackdropView; ) |