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 "SkCanvas.h" |
| 10 | #include "SkView.h" |
| 11 | #include "Sk1DPathEffect.h" |
| 12 | #include "Sk2DPathEffect.h" |
| 13 | #include "SkAvoidXfermode.h" |
| 14 | #include "SkBlurMaskFilter.h" |
| 15 | #include "SkColorFilter.h" |
| 16 | #include "SkColorPriv.h" |
| 17 | #include "SkCornerPathEffect.h" |
| 18 | #include "SkDashPathEffect.h" |
| 19 | #include "SkDiscretePathEffect.h" |
| 20 | #include "SkEmbossMaskFilter.h" |
| 21 | #include "SkGradientShader.h" |
| 22 | #include "SkImageDecoder.h" |
| 23 | #include "SkLayerRasterizer.h" |
| 24 | #include "SkMath.h" |
| 25 | #include "SkPath.h" |
| 26 | #include "SkRegion.h" |
| 27 | #include "SkShader.h" |
reed@android.com | aa5a7db | 2009-05-27 01:20:10 +0000 | [diff] [blame] | 28 | #include "SkComposeShader.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | #include "SkCornerPathEffect.h" |
| 30 | #include "SkPathMeasure.h" |
| 31 | #include "SkPicture.h" |
| 32 | #include "SkRandom.h" |
| 33 | #include "SkTransparentShader.h" |
| 34 | #include "SkTypeface.h" |
| 35 | #include "SkUnitMappers.h" |
| 36 | #include "SkUtils.h" |
| 37 | #include "SkXfermode.h" |
| 38 | |
| 39 | #include <math.h> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 41 | static inline SkPMColor rgb2gray(SkPMColor c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 42 | unsigned r = SkGetPackedR32(c); |
| 43 | unsigned g = SkGetPackedG32(c); |
| 44 | unsigned b = SkGetPackedB32(c); |
| 45 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 46 | unsigned x = (r * 5 + g * 7 + b * 4) >> 4; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 47 | |
| 48 | return SkPackARGB32(0, x, x, x) | (c & (SK_A32_MASK << SK_A32_SHIFT)); |
| 49 | } |
| 50 | |
| 51 | class SkGrayScaleColorFilter : public SkColorFilter { |
| 52 | public: |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 53 | virtual void filterSpan(const SkPMColor src[], int count, SkPMColor result[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | for (int i = 0; i < count; i++) |
| 55 | result[i] = rgb2gray(src[i]); |
| 56 | } |
| 57 | }; |
| 58 | |
| 59 | class SkChannelMaskColorFilter : public SkColorFilter { |
| 60 | public: |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 61 | SkChannelMaskColorFilter(U8CPU redMask, U8CPU greenMask, U8CPU blueMask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 62 | fMask = SkPackARGB32(0xFF, redMask, greenMask, blueMask); |
| 63 | } |
| 64 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 65 | virtual void filterSpan(const SkPMColor src[], int count, SkPMColor result[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 66 | SkPMColor mask = fMask; |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 67 | for (int i = 0; i < count; i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 68 | result[i] = src[i] & mask; |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 69 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | private: |
| 73 | SkPMColor fMask; |
| 74 | }; |
| 75 | |
| 76 | /////////////////////////////////////////////////////////// |
| 77 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 78 | static void r0(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 79 | p.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3), |
| 80 | SkBlurMaskFilter::kNormal_BlurStyle))->unref(); |
| 81 | rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| 82 | |
| 83 | p.setMaskFilter(NULL); |
| 84 | p.setStyle(SkPaint::kStroke_Style); |
| 85 | p.setStrokeWidth(SK_Scalar1); |
| 86 | rast->addLayer(p); |
| 87 | |
| 88 | p.setAlpha(0x11); |
| 89 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 90 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 91 | rast->addLayer(p); |
| 92 | } |
| 93 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 94 | static void r1(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | rast->addLayer(p); |
| 96 | |
| 97 | p.setAlpha(0x40); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 98 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | p.setStyle(SkPaint::kStroke_Style); |
| 100 | p.setStrokeWidth(SK_Scalar1*2); |
| 101 | rast->addLayer(p); |
| 102 | } |
| 103 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 104 | static void r2(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 105 | p.setStyle(SkPaint::kStrokeAndFill_Style); |
| 106 | p.setStrokeWidth(SK_Scalar1*4); |
| 107 | rast->addLayer(p); |
| 108 | |
| 109 | p.setStyle(SkPaint::kStroke_Style); |
| 110 | p.setStrokeWidth(SK_Scalar1*3/2); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 111 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 112 | rast->addLayer(p); |
| 113 | } |
| 114 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 115 | static void r3(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 116 | p.setStyle(SkPaint::kStroke_Style); |
| 117 | p.setStrokeWidth(SK_Scalar1*3); |
| 118 | rast->addLayer(p); |
| 119 | |
| 120 | p.setAlpha(0x20); |
| 121 | p.setStyle(SkPaint::kFill_Style); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 122 | p.setXfermodeMode(SkXfermode::kSrc_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 123 | rast->addLayer(p); |
| 124 | } |
| 125 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 126 | static void r4(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 127 | p.setAlpha(0x60); |
| 128 | rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3)); |
| 129 | |
| 130 | p.setAlpha(0xFF); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 131 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | rast->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2); |
| 133 | |
| 134 | p.setXfermode(NULL); |
| 135 | rast->addLayer(p); |
| 136 | } |
| 137 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 138 | static void r5(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 139 | rast->addLayer(p); |
| 140 | |
| 141 | p.setPathEffect(new SkDiscretePathEffect(SK_Scalar1*4, SK_Scalar1*3))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 142 | p.setXfermodeMode(SkXfermode::kSrcOut_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | rast->addLayer(p); |
| 144 | } |
| 145 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 146 | static void r6(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 147 | rast->addLayer(p); |
| 148 | |
| 149 | p.setAntiAlias(false); |
| 150 | SkLayerRasterizer* rast2 = new SkLayerRasterizer; |
| 151 | r5(rast2, p); |
| 152 | p.setRasterizer(rast2)->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 153 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 154 | rast->addLayer(p); |
| 155 | } |
| 156 | |
| 157 | class Dot2DPathEffect : public Sk2DPathEffect { |
| 158 | public: |
| 159 | Dot2DPathEffect(SkScalar radius, const SkMatrix& matrix) |
| 160 | : Sk2DPathEffect(matrix), fRadius(radius) {} |
| 161 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 162 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 163 | this->INHERITED::flatten(buffer); |
| 164 | |
| 165 | buffer.writeScalar(fRadius); |
| 166 | } |
| 167 | virtual Factory getFactory() { return CreateProc; } |
| 168 | |
| 169 | protected: |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 170 | virtual void next(const SkPoint& loc, int u, int v, SkPath* dst) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 171 | dst->addCircle(loc.fX, loc.fY, fRadius); |
| 172 | } |
| 173 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 174 | Dot2DPathEffect(SkFlattenableReadBuffer& buffer) : Sk2DPathEffect(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | fRadius = buffer.readScalar(); |
| 176 | } |
| 177 | private: |
| 178 | SkScalar fRadius; |
| 179 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 180 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 181 | return new Dot2DPathEffect(buffer); |
| 182 | } |
| 183 | |
| 184 | typedef Sk2DPathEffect INHERITED; |
| 185 | }; |
| 186 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 187 | static void r7(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | SkMatrix lattice; |
| 189 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 190 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
| 191 | p.setPathEffect(new Dot2DPathEffect(SK_Scalar1*4, lattice))->unref(); |
| 192 | rast->addLayer(p); |
| 193 | } |
| 194 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 195 | static void r8(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | rast->addLayer(p); |
| 197 | |
| 198 | SkMatrix lattice; |
| 199 | lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0); |
| 200 | lattice.postSkew(SK_Scalar1/3, 0, 0, 0); |
| 201 | p.setPathEffect(new Dot2DPathEffect(SK_Scalar1*2, lattice))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 202 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 203 | rast->addLayer(p); |
| 204 | |
| 205 | p.setPathEffect(NULL); |
| 206 | p.setXfermode(NULL); |
| 207 | p.setStyle(SkPaint::kStroke_Style); |
| 208 | p.setStrokeWidth(SK_Scalar1); |
| 209 | rast->addLayer(p); |
| 210 | } |
| 211 | |
| 212 | class Line2DPathEffect : public Sk2DPathEffect { |
| 213 | public: |
| 214 | Line2DPathEffect(SkScalar width, const SkMatrix& matrix) |
| 215 | : Sk2DPathEffect(matrix), fWidth(width) {} |
| 216 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 217 | virtual bool filterPath(SkPath* dst, const SkPath& src, SkScalar* width) { |
| 218 | if (this->INHERITED::filterPath(dst, src, width)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 219 | *width = fWidth; |
| 220 | return true; |
| 221 | } |
| 222 | return false; |
| 223 | } |
| 224 | |
| 225 | virtual Factory getFactory() { return CreateProc; } |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 226 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 227 | this->INHERITED::flatten(buffer); |
| 228 | buffer.writeScalar(fWidth); |
| 229 | } |
| 230 | protected: |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 231 | virtual void nextSpan(int u, int v, int ucount, SkPath* dst) { |
| 232 | if (ucount > 1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | SkPoint src[2], dstP[2]; |
| 234 | |
| 235 | src[0].set(SkIntToScalar(u) + SK_ScalarHalf, |
| 236 | SkIntToScalar(v) + SK_ScalarHalf); |
| 237 | src[1].set(SkIntToScalar(u+ucount) + SK_ScalarHalf, |
| 238 | SkIntToScalar(v) + SK_ScalarHalf); |
| 239 | this->getMatrix().mapPoints(dstP, src, 2); |
| 240 | |
| 241 | dst->moveTo(dstP[0]); |
| 242 | dst->lineTo(dstP[1]); |
| 243 | } |
| 244 | } |
| 245 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 246 | Line2DPathEffect(SkFlattenableReadBuffer& buffer) : Sk2DPathEffect(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | fWidth = buffer.readScalar(); |
| 248 | } |
| 249 | |
| 250 | private: |
| 251 | SkScalar fWidth; |
| 252 | |
| 253 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { return new Line2DPathEffect(buffer); } |
| 254 | |
| 255 | typedef Sk2DPathEffect INHERITED; |
| 256 | }; |
| 257 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 258 | static void r9(SkLayerRasterizer* rast, SkPaint& p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 259 | rast->addLayer(p); |
| 260 | |
| 261 | SkMatrix lattice; |
| 262 | lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0); |
| 263 | lattice.postRotate(SkIntToScalar(30), 0, 0); |
| 264 | p.setPathEffect(new Line2DPathEffect(SK_Scalar1*2, lattice))->unref(); |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 265 | p.setXfermodeMode(SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 266 | rast->addLayer(p); |
| 267 | |
| 268 | p.setPathEffect(NULL); |
| 269 | p.setXfermode(NULL); |
| 270 | p.setStyle(SkPaint::kStroke_Style); |
| 271 | p.setStrokeWidth(SK_Scalar1); |
| 272 | rast->addLayer(p); |
| 273 | } |
| 274 | |
| 275 | typedef void (*raster_proc)(SkLayerRasterizer*, SkPaint&); |
| 276 | |
| 277 | static const raster_proc gRastProcs[] = { |
| 278 | r0, r1, r2, r3, r4, r5, r6, r7, r8, r9 |
| 279 | }; |
| 280 | |
| 281 | static const struct { |
| 282 | SkColor fMul, fAdd; |
| 283 | } gLightingColors[] = { |
| 284 | { 0x808080, 0x800000 }, // general case |
| 285 | { 0x707070, 0x707070 }, // no-pin case |
| 286 | { 0xFFFFFF, 0x800000 }, // just-add case |
| 287 | { 0x808080, 0x000000 }, // just-mul case |
| 288 | { 0xFFFFFF, 0x000000 } // identity case |
| 289 | }; |
| 290 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 291 | static unsigned color_dist16(uint16_t a, uint16_t b) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 292 | unsigned dr = SkAbs32(SkPacked16ToR32(a) - SkPacked16ToR32(b)); |
| 293 | unsigned dg = SkAbs32(SkPacked16ToG32(a) - SkPacked16ToG32(b)); |
| 294 | unsigned db = SkAbs32(SkPacked16ToB32(a) - SkPacked16ToB32(b)); |
| 295 | |
| 296 | return SkMax32(dr, SkMax32(dg, db)); |
| 297 | } |
| 298 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 299 | static unsigned scale_dist(unsigned dist, unsigned scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 300 | dist >>= 6; |
| 301 | dist = (dist << 2) | dist; |
| 302 | dist = (dist << 4) | dist; |
| 303 | return dist; |
| 304 | |
| 305 | // return SkAlphaMul(dist, scale); |
| 306 | } |
| 307 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 308 | static void apply_shader(SkPaint* paint, int index) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 309 | raster_proc proc = gRastProcs[index]; |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 310 | if (proc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 311 | SkPaint p; |
| 312 | SkLayerRasterizer* rast = new SkLayerRasterizer; |
| 313 | |
| 314 | p.setAntiAlias(true); |
| 315 | proc(rast, p); |
| 316 | paint->setRasterizer(rast)->unref(); |
| 317 | } |
| 318 | |
| 319 | #if 1 |
| 320 | SkScalar dir[] = { SK_Scalar1, SK_Scalar1, SK_Scalar1 }; |
| 321 | paint->setMaskFilter(SkBlurMaskFilter::CreateEmboss(dir, SK_Scalar1/4, SkIntToScalar(4), SkIntToScalar(3)))->unref(); |
| 322 | paint->setColor(SK_ColorBLUE); |
| 323 | #endif |
| 324 | } |
| 325 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 326 | class DemoView : public SampleView { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 327 | public: |
reed@google.com | 2f3dc9d | 2011-05-02 17:33:45 +0000 | [diff] [blame] | 328 | DemoView() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 329 | |
| 330 | protected: |
| 331 | // overrides from SkEventSink |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 332 | virtual bool onQuery(SkEvent* evt) { |
| 333 | if (SampleCode::TitleQ(*evt)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 334 | SampleCode::TitleR(evt, "Demo"); |
| 335 | return true; |
| 336 | } |
| 337 | return this->INHERITED::onQuery(evt); |
| 338 | } |
| 339 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 340 | virtual bool onClick(Click* click) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 341 | return this->INHERITED::onClick(click); |
| 342 | } |
| 343 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 344 | void makePath(SkPath& path) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 345 | path.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(20), |
| 346 | SkPath::kCCW_Direction); |
| 347 | for (int index = 0; index < 10; index++) { |
| 348 | SkScalar x = SkFloatToScalar(cos(index / 10.0f * 2 * 3.1415925358f)); |
| 349 | SkScalar y = SkFloatToScalar(sin(index / 10.0f * 2 * 3.1415925358f)); |
| 350 | x *= index & 1 ? 7 : 14; |
| 351 | y *= index & 1 ? 7 : 14; |
| 352 | x += SkIntToScalar(20); |
| 353 | y += SkIntToScalar(20); |
| 354 | if (index == 0) |
| 355 | path.moveTo(x, y); |
| 356 | else |
| 357 | path.lineTo(x, y); |
| 358 | } |
| 359 | path.close(); |
| 360 | } |
| 361 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 362 | virtual void onDrawContent(SkCanvas* canvas) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 363 | canvas->save(); |
| 364 | drawPicture(canvas, 0); |
| 365 | canvas->restore(); |
| 366 | |
| 367 | { |
| 368 | SkPicture picture; |
| 369 | SkCanvas* record = picture.beginRecording(320, 480); |
| 370 | drawPicture(record, 120); |
| 371 | canvas->translate(0, SkIntToScalar(120)); |
| 372 | |
| 373 | SkRect clip; |
| 374 | clip.set(0, 0, SkIntToScalar(160), SkIntToScalar(160)); |
| 375 | do { |
| 376 | canvas->save(); |
| 377 | canvas->clipRect(clip); |
| 378 | picture.draw(canvas); |
| 379 | canvas->restore(); |
| 380 | if (clip.fRight < SkIntToScalar(320)) |
| 381 | clip.offset(SkIntToScalar(160), 0); |
| 382 | else if (clip.fBottom < SkIntToScalar(480)) |
| 383 | clip.offset(-SkIntToScalar(320), SkIntToScalar(160)); |
| 384 | else |
| 385 | break; |
| 386 | } while (true); |
| 387 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 388 | } |
| 389 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 390 | void drawPicture(SkCanvas* canvas, int spriteOffset) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 391 | SkMatrix matrix; matrix.reset(); |
| 392 | SkPaint paint; |
| 393 | SkPath path; |
| 394 | SkPoint start = {0, 0}; |
| 395 | SkPoint stop = { SkIntToScalar(40), SkIntToScalar(40) }; |
| 396 | SkRect rect = {0, 0, SkIntToScalar(40), SkIntToScalar(40) }; |
| 397 | SkRect rect2 = {0, 0, SkIntToScalar(65), SkIntToScalar(20) }; |
| 398 | SkScalar left = 0, top = 0, x = 0, y = 0; |
reed@google.com | 261b8e2 | 2011-04-14 17:53:24 +0000 | [diff] [blame] | 399 | size_t index; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 400 | |
| 401 | char ascii[] = "ascii..."; |
| 402 | size_t asciiLength = sizeof(ascii) - 1; |
| 403 | char utf8[] = "utf8" "\xe2\x80\xa6"; |
| 404 | short utf16[] = {'u', 't', 'f', '1', '6', 0x2026 }; |
| 405 | short utf16simple[] = {'u', 't', 'f', '1', '6', '!' }; |
| 406 | |
| 407 | makePath(path); |
| 408 | SkTDArray<SkPoint>(pos); |
| 409 | pos.setCount(asciiLength); |
| 410 | for (index = 0; index < asciiLength; index++) |
| 411 | pos[index].set(SkIntToScalar(index * 10), SkIntToScalar(index * 2)); |
| 412 | SkTDArray<SkPoint>(pos2); |
| 413 | pos2.setCount(asciiLength); |
| 414 | for (index = 0; index < asciiLength; index++) |
| 415 | pos2[index].set(SkIntToScalar(index * 10), SkIntToScalar(20)); |
| 416 | |
| 417 | // shaders |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 418 | SkPoint linearPoints[] = { { 0, 0, }, { SkIntToScalar(40), SkIntToScalar(40) } }; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 419 | SkColor linearColors[] = { SK_ColorRED, SK_ColorBLUE }; |
| 420 | SkScalar* linearPos = NULL; |
| 421 | int linearCount = 2; |
| 422 | SkShader::TileMode linearMode = SkShader::kMirror_TileMode; |
| 423 | SkUnitMapper* linearMapper = new SkDiscreteMapper(3); |
| 424 | SkAutoUnref unmapLinearMapper(linearMapper); |
| 425 | SkShader* linear = SkGradientShader::CreateLinear(linearPoints, |
| 426 | linearColors, linearPos, linearCount, linearMode, linearMapper); |
| 427 | |
| 428 | SkPoint radialCenter = { SkIntToScalar(25), SkIntToScalar(25) }; |
| 429 | SkScalar radialRadius = SkIntToScalar(25); |
| 430 | SkColor radialColors[] = { SK_ColorGREEN, SK_ColorGRAY, SK_ColorRED }; |
| 431 | SkScalar radialPos[] = { 0, SkIntToScalar(3) / 5, SkIntToScalar(1)}; |
| 432 | int radialCount = 3; |
| 433 | SkShader::TileMode radialMode = SkShader::kRepeat_TileMode; |
| 434 | SkUnitMapper* radialMapper = new SkCosineMapper(); |
| 435 | SkAutoUnref unmapRadialMapper(radialMapper); |
| 436 | SkShader* radial = SkGradientShader::CreateRadial(radialCenter, |
| 437 | radialRadius, radialColors, radialPos, radialCount, |
| 438 | radialMode, radialMapper); |
| 439 | |
| 440 | SkTransparentShader* transparentShader = new SkTransparentShader(); |
| 441 | SkEmbossMaskFilter::Light light; |
| 442 | light.fDirection[0] = SK_Scalar1/2; |
| 443 | light.fDirection[1] = SK_Scalar1/2; |
| 444 | light.fDirection[2] = SK_Scalar1/3; |
| 445 | light.fAmbient = 0x48; |
| 446 | light.fSpecular = 0x80; |
| 447 | SkScalar radius = SkIntToScalar(12)/5; |
| 448 | SkEmbossMaskFilter* embossFilter = new SkEmbossMaskFilter(light, |
| 449 | radius); |
| 450 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 451 | SkXfermode* xfermode = SkXfermode::Create(SkXfermode::kXor_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 452 | SkColorFilter* lightingFilter = SkColorFilter::CreateLightingFilter( |
| 453 | 0xff89bc45, 0xff112233); |
| 454 | |
| 455 | canvas->save(); |
| 456 | canvas->translate(SkIntToScalar(0), SkIntToScalar(5)); |
| 457 | paint.setFlags(SkPaint::kAntiAlias_Flag | SkPaint::kFilterBitmap_Flag); |
| 458 | // !!! draw through a clip |
| 459 | paint.setColor(SK_ColorLTGRAY); |
| 460 | paint.setStyle(SkPaint::kFill_Style); |
| 461 | SkRect clip = {0, 0, SkIntToScalar(320), SkIntToScalar(120)}; |
| 462 | canvas->clipRect(clip); |
| 463 | paint.setShader(SkShader::CreateBitmapShader(fTx, |
| 464 | SkShader::kMirror_TileMode, SkShader::kRepeat_TileMode))->unref(); |
| 465 | canvas->drawPaint(paint); |
| 466 | canvas->save(); |
| 467 | |
| 468 | // line (exercises xfermode, colorShader, colorFilter, filterShader) |
| 469 | paint.setColor(SK_ColorGREEN); |
| 470 | paint.setStrokeWidth(SkIntToScalar(10)); |
| 471 | paint.setStyle(SkPaint::kStroke_Style); |
| 472 | paint.setXfermode(xfermode)->unref(); |
| 473 | paint.setColorFilter(lightingFilter)->unref(); |
| 474 | canvas->drawLine(start.fX, start.fY, stop.fX, stop.fY, paint); // should not be green |
| 475 | paint.setXfermode(NULL); |
| 476 | paint.setColorFilter(NULL); |
| 477 | |
| 478 | // rectangle |
| 479 | paint.setStyle(SkPaint::kFill_Style); |
| 480 | canvas->translate(SkIntToScalar(50), 0); |
| 481 | paint.setColor(SK_ColorYELLOW); |
| 482 | paint.setShader(linear)->unref(); |
| 483 | paint.setPathEffect(pathEffectTest())->unref(); |
| 484 | canvas->drawRect(rect, paint); |
| 485 | paint.setPathEffect(NULL); |
| 486 | |
| 487 | // circle w/ emboss & transparent (exercises 3dshader) |
| 488 | canvas->translate(SkIntToScalar(50), 0); |
| 489 | paint.setMaskFilter(embossFilter)->unref(); |
| 490 | canvas->drawOval(rect, paint); |
| 491 | canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); |
| 492 | paint.setShader(transparentShader)->unref(); |
| 493 | canvas->drawOval(rect, paint); |
| 494 | canvas->translate(0, SkIntToScalar(-10)); |
| 495 | |
| 496 | // path |
| 497 | canvas->translate(SkIntToScalar(50), 0); |
| 498 | paint.setColor(SK_ColorRED); |
| 499 | paint.setStyle(SkPaint::kStroke_Style); |
| 500 | paint.setStrokeWidth(SkIntToScalar(5)); |
| 501 | paint.setShader(radial)->unref(); |
| 502 | paint.setMaskFilter(NULL); |
| 503 | canvas->drawPath(path, paint); |
| 504 | |
| 505 | paint.setShader(NULL); |
| 506 | // bitmap, sprite |
| 507 | canvas->translate(SkIntToScalar(50), 0); |
| 508 | paint.setStyle(SkPaint::kFill_Style); |
| 509 | canvas->drawBitmap(fBug, left, top, &paint); |
| 510 | canvas->translate(SkIntToScalar(30), 0); |
| 511 | canvas->drawSprite(fTb, |
| 512 | SkScalarRound(canvas->getTotalMatrix().getTranslateX()), |
| 513 | spriteOffset + 10, &paint); |
| 514 | |
| 515 | canvas->translate(-SkIntToScalar(30), SkIntToScalar(30)); |
| 516 | paint.setShader(shaderTest())->unref(); // test compose shader |
| 517 | canvas->drawRect(rect2, paint); |
| 518 | paint.setShader(NULL); |
| 519 | |
| 520 | canvas->restore(); |
| 521 | // text |
| 522 | canvas->translate(0, SkIntToScalar(60)); |
| 523 | canvas->save(); |
| 524 | paint.setColor(SK_ColorGRAY); |
| 525 | canvas->drawPosText(ascii, asciiLength, pos.begin(), paint); |
| 526 | canvas->drawPosText(ascii, asciiLength, pos2.begin(), paint); |
| 527 | |
| 528 | canvas->translate(SkIntToScalar(50), 0); |
| 529 | paint.setColor(SK_ColorCYAN); |
| 530 | canvas->drawText(utf8, sizeof(utf8) - 1, x, y, paint); |
| 531 | |
| 532 | canvas->translate(SkIntToScalar(30), 0); |
| 533 | paint.setColor(SK_ColorMAGENTA); |
| 534 | paint.setTextEncoding(SkPaint::kUTF16_TextEncoding); |
| 535 | matrix.setTranslate(SkIntToScalar(10), SkIntToScalar(10)); |
| 536 | canvas->drawTextOnPath((void*) utf16, sizeof(utf16), path, &matrix, paint); |
| 537 | canvas->translate(0, SkIntToScalar(20)); |
| 538 | canvas->drawTextOnPath((void*) utf16simple, sizeof(utf16simple), path, &matrix, paint); |
| 539 | canvas->restore(); |
| 540 | |
| 541 | canvas->translate(0, SkIntToScalar(60)); |
| 542 | paint.setTextEncoding(SkPaint::kUTF8_TextEncoding); |
| 543 | canvas->restore(); |
| 544 | } |
| 545 | |
| 546 | /* |
| 547 | ./SkColorFilter.h:25:class SkColorFilter : public SkFlattenable { -- abstract |
| 548 | static SkColorFilter* CreatXfermodeFilter() *** untested *** |
| 549 | static SkColorFilter* CreatePorterDuffFilter() *** untested *** |
| 550 | static SkColorFilter* CreateLightingFilter() -- tested |
| 551 | ./SkDrawLooper.h:9:class SkDrawLooper : public SkFlattenable { -- virtually abstract |
| 552 | ./SkBlurDrawLooper.h:9:class SkBlurDrawLooper : public SkDrawLooper { *** untested *** |
| 553 | ./SkMaskFilter.h:41:class SkMaskFilter : public SkFlattenable { -- abstract chmod +w .h |
| 554 | ./SkEmbossMaskFilter.h:27:class SkEmbossMaskFilter : public SkMaskFilter { -- tested |
| 555 | ./SkPathEffect.h:33:class SkPathEffect : public SkFlattenable { -- abstract |
| 556 | ./Sk1DPathEffect.h:27:class Sk1DPathEffect : public SkPathEffect { -- abstract |
| 557 | ./Sk1DPathEffect.h:48:class SkPath1DPathEffect : public Sk1DPathEffect { -- tested |
| 558 | ./Sk2DPathEffect.h:25:class Sk2DPathEffect : public SkPathEffect { *** untested *** |
| 559 | ./SkCornerPathEffect.h:28:class SkCornerPathEffect : public SkPathEffect { *** untested *** |
| 560 | ./SkDashPathEffect.h:27:class SkDashPathEffect : public SkPathEffect { |
| 561 | ./SkDiscretePathEffect.h:27:class SkDiscretePathEffect : public SkPathEffect { |
| 562 | ./SkPaint.h:760:class SkStrokePathEffect : public SkPathEffect { |
| 563 | ./SkPathEffect.h:58:class SkPairPathEffect : public SkPathEffect { |
| 564 | ./SkPathEffect.h:78:class SkComposePathEffect : public SkPairPathEffect { |
| 565 | ./SkPathEffect.h:114:class SkSumPathEffect : public SkPairPathEffect { |
| 566 | ./SkRasterizer.h:29:class SkRasterizer : public SkFlattenable { |
| 567 | ./SkLayerRasterizer.h:27:class SkLayerRasterizer : public SkRasterizer { |
| 568 | ./SkShader.h:36:class SkShader : public SkFlattenable { |
| 569 | ./SkColorFilter.h:59:class SkFilterShader : public SkShader { |
| 570 | ./SkColorShader.h:26:class SkColorShader : public SkShader { |
| 571 | ./SkShaderExtras.h:31:class SkComposeShader : public SkShader { |
| 572 | ./SkTransparentShader.h:23:class SkTransparentShader : public SkShader { |
| 573 | ./SkUnitMapper.h:24:class SkUnitMapper : public SkFlattenable { |
| 574 | ./SkUnitMapper.h:33:class SkDiscreteMapper : public SkUnitMapper { |
| 575 | ./SkUnitMapper.h:51:class SkFlipCosineMapper : public SkUnitMapper { |
| 576 | ./SkXfermode.h:32:class SkXfermode : public SkFlattenable { |
| 577 | ./SkAvoidXfermode.h:28:class SkAvoidXfermode : public SkXfermode { *** not done *** chmod +w .h .cpp |
| 578 | ./SkXfermode.h:54:class SkProcXfermode : public SkXfermode { |
| 579 | */ |
| 580 | |
| 581 | /* |
| 582 | ./SkBlurMaskFilter.h:25:class SkBlurMaskFilter { |
| 583 | chmod +w SkBlurMaskFilter.cpp |
| 584 | ./SkGradientShader.h:30:class SkGradientShader { |
| 585 | */ |
| 586 | // save layer, bounder, looper |
| 587 | // matrix |
| 588 | // clip /path/region |
| 589 | // bitmap proc shader ? |
| 590 | |
| 591 | /* untested: |
| 592 | SkCornerPathEffect.h:28:class SkCornerPathEffect : public SkPathEffect { |
| 593 | */ |
| 594 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 595 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 596 | fClickPt.set(x, y); |
| 597 | this->inval(NULL); |
| 598 | return this->INHERITED::onFindClickHandler(x, y); |
| 599 | } |
| 600 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 601 | SkPathEffect* pathEffectTest() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 602 | static const int gXY[] = { 1, 0, 0, -1, 2, -1, 3, 0, 2, 1, 0, 1 }; |
| 603 | SkScalar gPhase = 0; |
| 604 | SkPath path; |
| 605 | path.moveTo(SkIntToScalar(gXY[0]), SkIntToScalar(gXY[1])); |
| 606 | for (unsigned i = 2; i < SK_ARRAY_COUNT(gXY); i += 2) |
| 607 | path.lineTo(SkIntToScalar(gXY[i]), SkIntToScalar(gXY[i+1])); |
| 608 | path.close(); |
| 609 | path.offset(SkIntToScalar(-6), 0); |
| 610 | SkPathEffect* outer = new SkPath1DPathEffect(path, SkIntToScalar(12), |
| 611 | gPhase, SkPath1DPathEffect::kRotate_Style); |
| 612 | SkPathEffect* inner = new SkDiscretePathEffect(SkIntToScalar(2), |
| 613 | SkIntToScalar(1)/10); // SkCornerPathEffect(SkIntToScalar(2)); |
| 614 | SkPathEffect* result = new SkComposePathEffect(outer, inner); |
| 615 | outer->unref(); |
| 616 | inner->unref(); |
| 617 | return result; |
| 618 | } |
| 619 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 620 | SkPathEffect* pathEffectTest2() { // unsure this works (has no visible effect) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 621 | SkPathEffect* outer = new SkStrokePathEffect(SkIntToScalar(4), |
| 622 | SkPaint::kStroke_Style, SkPaint::kMiter_Join, SkPaint::kButt_Cap); |
| 623 | static const SkScalar intervals[] = {SkIntToScalar(1), SkIntToScalar(2), |
| 624 | SkIntToScalar(2), SkIntToScalar(1)}; |
| 625 | SkPathEffect* inner = new SkDashPathEffect(intervals, |
| 626 | sizeof(intervals) / sizeof(intervals[0]), 0); |
| 627 | SkPathEffect* result = new SkSumPathEffect(outer, inner); |
| 628 | outer->unref(); |
| 629 | inner->unref(); |
| 630 | return result; |
| 631 | } |
| 632 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 633 | SkShader* shaderTest() { |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 634 | SkPoint pts[] = { { 0, 0, }, { SkIntToScalar(100), 0 } }; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 635 | SkColor colors[] = { SK_ColorRED, SK_ColorBLUE }; |
| 636 | SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, NULL, |
| 637 | 2, SkShader::kClamp_TileMode); |
| 638 | pts[1].set(0, SkIntToScalar(100)); |
| 639 | SkColor colors2[] = {SK_ColorBLACK, SkColorSetARGB(0x80, 0, 0, 0)}; |
| 640 | SkShader* shaderB = SkGradientShader::CreateLinear(pts, colors2, NULL, |
| 641 | 2, SkShader::kClamp_TileMode); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 642 | SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 643 | SkShader* result = new SkComposeShader(shaderA, shaderB, mode); |
| 644 | shaderA->unref(); |
| 645 | shaderB->unref(); |
| 646 | mode->unref(); |
| 647 | return result; |
| 648 | } |
| 649 | |
| 650 | virtual void startTest() { |
| 651 | SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/bugcirc.gif", &fBug); |
| 652 | SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/tbcirc.gif", &fTb); |
| 653 | SkImageDecoder::DecodeFile("/Users/caryclark/Desktop/05psp04.gif", &fTx); |
| 654 | } |
| 655 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 656 | void drawRaster(SkCanvas* canvas) { |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 657 | for (size_t index = 0; index < SK_ARRAY_COUNT(gRastProcs); index++) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 658 | drawOneRaster(canvas); |
| 659 | } |
| 660 | |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 661 | void drawOneRaster(SkCanvas* canvas) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 662 | canvas->save(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 663 | |
| 664 | SkScalar x = SkIntToScalar(20); |
| 665 | SkScalar y = SkIntToScalar(40); |
| 666 | SkPaint paint; |
| 667 | |
| 668 | paint.setAntiAlias(true); |
| 669 | paint.setTextSize(SkIntToScalar(48)); |
reed@android.com | aa5a7db | 2009-05-27 01:20:10 +0000 | [diff] [blame] | 670 | paint.setTypeface(SkTypeface::CreateFromName("sans-serif", |
| 671 | SkTypeface::kBold)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 672 | |
| 673 | SkString str("GOOGLE"); |
| 674 | |
senorblanco@chromium.org | 64cc579 | 2011-05-19 19:58:58 +0000 | [diff] [blame] | 675 | for (size_t i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 676 | apply_shader(&paint, i); |
| 677 | |
| 678 | // paint.setMaskFilter(NULL); |
| 679 | // paint.setColor(SK_ColorBLACK); |
| 680 | |
| 681 | #if 01 |
| 682 | int index = i % SK_ARRAY_COUNT(gLightingColors); |
| 683 | paint.setColorFilter(SkColorFilter::CreateLightingFilter( |
| 684 | gLightingColors[index].fMul, |
| 685 | gLightingColors[index].fAdd))->unref(); |
| 686 | #endif |
| 687 | |
| 688 | canvas->drawText(str.c_str(), str.size(), x, y, paint); |
| 689 | SkRect oval = { x, y - SkIntToScalar(40), x + SkIntToScalar(40), y }; |
| 690 | paint.setStyle(SkPaint::kStroke_Style); |
| 691 | canvas->drawOval(oval, paint); |
| 692 | paint.setStyle(SkPaint::kFill_Style); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 693 | |
| 694 | y += paint.getFontSpacing(); |
| 695 | } |
| 696 | |
| 697 | canvas->restore(); |
| 698 | |
reed@android.com | 6b82d1a | 2009-06-03 02:35:01 +0000 | [diff] [blame] | 699 | if (1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 700 | SkAvoidXfermode mode(SK_ColorWHITE, 0xFF, |
| 701 | SkAvoidXfermode::kTargetColor_Mode); |
| 702 | SkPaint paint; |
| 703 | x += SkIntToScalar(20); |
| 704 | SkRect r = { x, 0, x + SkIntToScalar(360), SkIntToScalar(700) }; |
| 705 | paint.setXfermode(&mode); |
| 706 | paint.setColor(SK_ColorGREEN); |
| 707 | paint.setAntiAlias(true); |
| 708 | canvas->drawOval(r, paint); |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | private: |
| 713 | SkPoint fClickPt; |
| 714 | SkBitmap fBug, fTb, fTx; |
mike@reedtribe.org | 5fd9243 | 2011-05-05 01:59:48 +0000 | [diff] [blame] | 715 | typedef SampleView INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 716 | }; |
| 717 | |
| 718 | ////////////////////////////////////////////////////////////////////////////// |
| 719 | |
| 720 | static SkView* MyFactory() { return new DemoView; } |
| 721 | static SkViewRegister reg(MyFactory); |
| 722 | |