epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2011 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #include "SampleCode.h" |
| 9 | #include "SkView.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkGradientShader.h" |
| 12 | #include "SkPath.h" |
| 13 | #include "SkRegion.h" |
| 14 | #include "SkShader.h" |
| 15 | #include "SkUtils.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkColorPriv.h" |
| 17 | #include "SkColorFilter.h" |
| 18 | #include "SkTypeface.h" |
| 19 | #include "SkAvoidXfermode.h" |
| 20 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 21 | static inline SkPMColor rgb2gray(SkPMColor c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 22 | unsigned r = SkGetPackedR32(c); |
| 23 | unsigned g = SkGetPackedG32(c); |
| 24 | unsigned b = SkGetPackedB32(c); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 25 | |
reed@google.com | 261b8e2 | 2011-04-14 17:53:24 +0000 | [diff] [blame] | 26 | unsigned x = (r * 5 + g * 7 + b * 4) >> 4; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 27 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 28 | return SkPackARGB32(0, x, x, x) | (c & (SK_A32_MASK << SK_A32_SHIFT)); |
| 29 | } |
| 30 | |
| 31 | class SkGrayScaleColorFilter : public SkColorFilter { |
| 32 | public: |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 33 | virtual void filterSpan(const SkPMColor src[], int count, |
| 34 | SkPMColor result[]) { |
| 35 | for (int i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | result[i] = rgb2gray(src[i]); |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 37 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 38 | } |
| 39 | }; |
| 40 | |
| 41 | class SkChannelMaskColorFilter : public SkColorFilter { |
| 42 | public: |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 43 | SkChannelMaskColorFilter(U8CPU redMask, U8CPU greenMask, U8CPU blueMask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | fMask = SkPackARGB32(0xFF, redMask, greenMask, blueMask); |
| 45 | } |
| 46 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 47 | virtual void filterSpan(const SkPMColor src[], int count, |
| 48 | SkPMColor result[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 49 | SkPMColor mask = fMask; |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 50 | for (int i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | result[i] = src[i] & mask; |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 52 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 54 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 55 | private: |
| 56 | SkPMColor fMask; |
| 57 | }; |
| 58 | |
| 59 | /////////////////////////////////////////////////////////// |
| 60 | |
| 61 | #include "SkGradientShader.h" |
| 62 | #include "SkLayerRasterizer.h" |
| 63 | #include "SkBlurMaskFilter.h" |
| 64 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 65 | static void r0(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 66 | p.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3), |
| 67 | SkBlurMaskFilter::kNormal_BlurStyle))->unref(); |
| 68 | rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| 69 | |
| 70 | p.setMaskFilter(NULL); |
| 71 | p.setStyle(SkPaint::kStroke_Style); |
| 72 | p.setStrokeWidth(SK_Scalar1); |
| 73 | rast->addLayer(p); |
| 74 | |
| 75 | p.setAlpha(0x11); |
| 76 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 77 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | rast->addLayer(p); |
| 79 | } |
| 80 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 81 | static void r1(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 82 | rast->addLayer(p); |
| 83 | |
| 84 | p.setAlpha(0x40); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 85 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 86 | p.setStyle(SkPaint::kStroke_Style); |
| 87 | p.setStrokeWidth(SK_Scalar1*2); |
| 88 | rast->addLayer(p); |
| 89 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 90 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 91 | static void r2(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | p.setStyle(SkPaint::kStrokeAndFill_Style); |
| 93 | p.setStrokeWidth(SK_Scalar1*4); |
| 94 | rast->addLayer(p); |
| 95 | |
| 96 | p.setStyle(SkPaint::kStroke_Style); |
| 97 | p.setStrokeWidth(SK_Scalar1*3/2); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 98 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | rast->addLayer(p); |
| 100 | } |
| 101 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 102 | static void r3(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 103 | p.setStyle(SkPaint::kStroke_Style); |
| 104 | p.setStrokeWidth(SK_Scalar1*3); |
| 105 | rast->addLayer(p); |
| 106 | |
| 107 | p.setAlpha(0x20); |
| 108 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 109 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 110 | rast->addLayer(p); |
| 111 | } |
| 112 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 113 | static void r4(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 114 | p.setAlpha(0x60); |
| 115 | rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| 116 | |
| 117 | p.setAlpha(0xFF); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 118 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 119 | rast->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2); |
| 120 | |
| 121 | p.setXfermode(NULL); |
| 122 | rast->addLayer(p); |
| 123 | } |
| 124 | |
| 125 | #include "SkDiscretePathEffect.h" |
| 126 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 127 | static void r5(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 128 | rast->addLayer(p); |
| 129 | |
| 130 | p.setPathEffect(new SkDiscretePathEffect(SK_Scalar1*4, SK_Scalar1*3))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 131 | p.setXfermodeMode(SkXfermode::kSrcOut_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | rast->addLayer(p); |
| 133 | } |
| 134 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 135 | static void r6(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | rast->addLayer(p); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 137 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | p.setAntiAlias(false); |
| 139 | SkLayerRasterizer* rast2 = new SkLayerRasterizer; |
| 140 | r5(rast2, p); |
| 141 | p.setRasterizer(rast2)->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 142 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | rast->addLayer(p); |
| 144 | } |
| 145 | |
| 146 | #include "Sk2DPathEffect.h" |
| 147 | |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 148 | static SkPathEffect* MakeDotEffect(SkScalar radius, const SkMatrix& matrix) { |
| 149 | SkPath path; |
| 150 | path.addCircle(0, 0, radius); |
| 151 | return new SkPath2DPathEffect(matrix, path); |
| 152 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 153 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 154 | static void r7(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | SkMatrix lattice; |
| 156 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 157 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 158 | p.setPathEffect(MakeDotEffect(SK_Scalar1*4, lattice))->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | rast->addLayer(p); |
| 160 | } |
| 161 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 162 | static void r8(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | rast->addLayer(p); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 164 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | SkMatrix lattice; |
| 166 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 167 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 168 | p.setPathEffect(MakeDotEffect(SK_Scalar1*2, lattice))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 169 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 170 | rast->addLayer(p); |
| 171 | |
| 172 | p.setPathEffect(NULL); |
| 173 | p.setXfermode(NULL); |
| 174 | p.setStyle(SkPaint::kStroke_Style); |
| 175 | p.setStrokeWidth(SK_Scalar1); |
| 176 | rast->addLayer(p); |
| 177 | } |
| 178 | |
| 179 | class Line2DPathEffect : public Sk2DPathEffect { |
| 180 | public: |
| 181 | Line2DPathEffect(SkScalar width, const SkMatrix& matrix) |
| 182 | : Sk2DPathEffect(matrix), fWidth(width) {} |
| 183 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 184 | virtual bool filterPath(SkPath* dst, const SkPath& src, SkScalar* width) { |
| 185 | if (this->INHERITED::filterPath(dst, src, width)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | *width = fWidth; |
| 187 | return true; |
| 188 | } |
| 189 | return false; |
| 190 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 191 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 192 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 193 | this->INHERITED::flatten(buffer); |
| 194 | buffer.writeScalar(fWidth); |
| 195 | } |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 196 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Line2DPathEffect) |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 197 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | protected: |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 199 | virtual void nextSpan(int u, int v, int ucount, SkPath* dst) { |
| 200 | if (ucount > 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 201 | SkPoint src[2], dstP[2]; |
| 202 | |
| 203 | src[0].set(SkIntToScalar(u) + SK_ScalarHalf, |
| 204 | SkIntToScalar(v) + SK_ScalarHalf); |
| 205 | src[1].set(SkIntToScalar(u+ucount) + SK_ScalarHalf, |
| 206 | SkIntToScalar(v) + SK_ScalarHalf); |
| 207 | this->getMatrix().mapPoints(dstP, src, 2); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 208 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 209 | dst->moveTo(dstP[0]); |
| 210 | dst->lineTo(dstP[1]); |
| 211 | } |
| 212 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 213 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 214 | Line2DPathEffect(SkFlattenableReadBuffer& buffer) : Sk2DPathEffect(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 215 | fWidth = buffer.readScalar(); |
| 216 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 217 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 218 | private: |
| 219 | SkScalar fWidth; |
| 220 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 221 | typedef Sk2DPathEffect INHERITED; |
| 222 | }; |
| 223 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 224 | static void r9(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | rast->addLayer(p); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 226 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 227 | SkMatrix lattice; |
| 228 | lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0); |
| 229 | lattice.postRotate(SkIntToScalar(30), 0, 0); |
| 230 | p.setPathEffect(new Line2DPathEffect(SK_Scalar1*2, lattice))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 231 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 232 | rast->addLayer(p); |
| 233 | |
| 234 | p.setPathEffect(NULL); |
| 235 | p.setXfermode(NULL); |
| 236 | p.setStyle(SkPaint::kStroke_Style); |
| 237 | p.setStrokeWidth(SK_Scalar1); |
| 238 | rast->addLayer(p); |
| 239 | } |
| 240 | |
| 241 | typedef void (*raster_proc)(SkLayerRasterizer*, SkPaint&); |
| 242 | |
| 243 | static const raster_proc gRastProcs[] = { |
| 244 | r0, r1, r2, r3, r4, r5, r6, r7, r8, r9 |
| 245 | }; |
| 246 | |
| 247 | static const struct { |
| 248 | SkColor fMul, fAdd; |
| 249 | } gLightingColors[] = { |
| 250 | { 0x808080, 0x800000 }, // general case |
| 251 | { 0x707070, 0x707070 }, // no-pin case |
| 252 | { 0xFFFFFF, 0x800000 }, // just-add case |
| 253 | { 0x808080, 0x000000 }, // just-mul case |
| 254 | { 0xFFFFFF, 0x000000 } // identity case |
| 255 | }; |
| 256 | |
| 257 | #include "SkXfermode.h" |
| 258 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 259 | static unsigned color_dist16(uint16_t a, uint16_t b) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | unsigned dr = SkAbs32(SkPacked16ToR32(a) - SkPacked16ToR32(b)); |
| 261 | unsigned dg = SkAbs32(SkPacked16ToG32(a) - SkPacked16ToG32(b)); |
| 262 | unsigned db = SkAbs32(SkPacked16ToB32(a) - SkPacked16ToB32(b)); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 263 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | return SkMax32(dr, SkMax32(dg, db)); |
| 265 | } |
| 266 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 267 | static unsigned scale_dist(unsigned dist, unsigned scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 268 | dist >>= 6; |
| 269 | dist = (dist << 2) | dist; |
| 270 | dist = (dist << 4) | dist; |
| 271 | return dist; |
| 272 | |
| 273 | // return SkAlphaMul(dist, scale); |
| 274 | } |
| 275 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 276 | static void apply_shader(SkPaint* paint, int index) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 277 | raster_proc proc = gRastProcs[index]; |
| 278 | if (proc) |
| 279 | { |
| 280 | SkPaint p; |
| 281 | SkLayerRasterizer* rast = new SkLayerRasterizer; |
| 282 | |
| 283 | p.setAntiAlias(true); |
| 284 | proc(rast, p); |
| 285 | paint->setRasterizer(rast)->unref(); |
| 286 | } |
| 287 | |
| 288 | #if 0 |
| 289 | SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 }; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 290 | 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] | 291 | #endif |
| 292 | paint->setColor(SK_ColorBLUE); |
| 293 | } |
| 294 | |
| 295 | static int gRastIndex; |
| 296 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 297 | class TextEffectView : public SampleView { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 298 | SkTypeface* fFace; |
| 299 | public: |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 300 | TextEffectView() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 301 | fFace = SkTypeface::CreateFromFile("/Users/reed/Downloads/p052024l.pfb"); |
| 302 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 303 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 304 | virtual ~TextEffectView() { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 305 | SkSafeUnref(fFace); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | protected: |
| 309 | // overrides from SkEventSink |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 310 | virtual bool onQuery(SkEvent* evt) { |
| 311 | if (SampleCode::TitleQ(*evt)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 312 | SampleCode::TitleR(evt, "Text Effects"); |
| 313 | return true; |
| 314 | } |
| 315 | return this->INHERITED::onQuery(evt); |
| 316 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 317 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 318 | virtual void onDrawContent(SkCanvas* canvas) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 319 | canvas->save(); |
| 320 | // canvas->scale(SK_Scalar1*2, SK_Scalar1*2, 0, 0); |
| 321 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 322 | SkPaint paint; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 323 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 324 | paint.setAntiAlias(true); |
reed@android.com | 0bb6d06 | 2010-05-17 14:50:04 +0000 | [diff] [blame] | 325 | paint.setTextSize(SkIntToScalar(56)); |
reed@android.com | 069b827 | 2009-03-04 15:31:48 +0000 | [diff] [blame] | 326 | paint.setTypeface(SkTypeface::CreateFromName("sans-serif", |
| 327 | SkTypeface::kBold)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 328 | |
reed@android.com | 0bb6d06 | 2010-05-17 14:50:04 +0000 | [diff] [blame] | 329 | SkScalar x = SkIntToScalar(20); |
| 330 | SkScalar y = paint.getTextSize(); |
| 331 | |
| 332 | SkString str("TextEffects"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 333 | |
| 334 | paint.setTypeface(fFace); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 335 | |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 336 | for (size_t i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 337 | apply_shader(&paint, i); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 338 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 339 | // paint.setMaskFilter(NULL); |
| 340 | // paint.setColor(SK_ColorBLACK); |
| 341 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 342 | #if 1 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 343 | int index = i % SK_ARRAY_COUNT(gLightingColors); |
| 344 | paint.setColorFilter(SkColorFilter::CreateLightingFilter( |
| 345 | gLightingColors[index].fMul, |
| 346 | gLightingColors[index].fAdd))->unref(); |
| 347 | #endif |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 348 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 349 | canvas->drawText(str.c_str(), str.size(), x, y, paint); |
| 350 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 351 | y += paint.getFontSpacing(); |
| 352 | } |
| 353 | |
| 354 | canvas->restore(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 355 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 356 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 357 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 358 | gRastIndex = (gRastIndex + 1) % SK_ARRAY_COUNT(gRastProcs); |
| 359 | this->inval(NULL); |
| 360 | |
| 361 | return this->INHERITED::onFindClickHandler(x, y); |
| 362 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 363 | |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 364 | virtual bool onClick(Click* click) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 365 | return this->INHERITED::onClick(click); |
| 366 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 367 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 368 | private: |
reed@google.com | f218339 | 2011-04-22 14:10:48 +0000 | [diff] [blame] | 369 | typedef SampleView INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 370 | }; |
| 371 | |
| 372 | ////////////////////////////////////////////////////////////////////////////// |
| 373 | |
| 374 | static SkView* MyFactory() { return new TextEffectView; } |
| 375 | static SkViewRegister reg(MyFactory); |
| 376 | |