1/* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "gm.h" 9#include "sk_tool_utils.h" 10#include "SkCanvas.h" 11#include "SkPaint.h" 12#include "SkPath.h" 13#include "SkRandom.h" 14 15namespace skiagm { 16 17class QuadPathGM : public GM { 18public: 19 QuadPathGM() {} 20 21protected: 22 23 SkString onShortName() override { 24 return SkString("quadpath"); 25 } 26 27 SkISize onISize() override { return SkISize::Make(1240, 390); } 28 29 void drawPath(SkPath& path,SkCanvas* canvas,SkColor color, 30 const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join, 31 SkPaint::Style style, SkPath::FillType fill, 32 SkScalar strokeWidth) { 33 path.setFillType(fill); 34 SkPaint paint; 35 paint.setStrokeCap(cap); 36 paint.setStrokeWidth(strokeWidth); 37 paint.setStrokeJoin(join); 38 paint.setColor(color); 39 paint.setStyle(style); 40 canvas->save(); 41 canvas->clipRect(clip); 42 canvas->drawPath(path, paint); 43 canvas->restore(); 44 } 45 46 void onDraw(SkCanvas* canvas) override { 47 struct FillAndName { 48 SkPath::FillType fFill; 49 const char* fName; 50 }; 51 constexpr FillAndName gFills[] = { 52 {SkPath::kWinding_FillType, "Winding"}, 53 {SkPath::kEvenOdd_FillType, "Even / Odd"}, 54 {SkPath::kInverseWinding_FillType, "Inverse Winding"}, 55 {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"}, 56 }; 57 struct StyleAndName { 58 SkPaint::Style fStyle; 59 const char* fName; 60 }; 61 constexpr StyleAndName gStyles[] = { 62 {SkPaint::kFill_Style, "Fill"}, 63 {SkPaint::kStroke_Style, "Stroke"}, 64 {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"}, 65 }; 66 struct CapAndName { 67 SkPaint::Cap fCap; 68 SkPaint::Join fJoin; 69 const char* fName; 70 }; 71 constexpr CapAndName gCaps[] = { 72 {SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"}, 73 {SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"}, 74 {SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"} 75 }; 76 struct PathAndName { 77 SkPath fPath; 78 const char* fName; 79 }; 80 PathAndName path; 81 path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1); 82 path.fPath.quadTo(50*SK_Scalar1, 20*SK_Scalar1, 83 75*SK_Scalar1, 10*SK_Scalar1); 84 path.fName = "moveTo-quad"; 85 86 SkPaint titlePaint; 87 titlePaint.setColor(SK_ColorBLACK); 88 titlePaint.setAntiAlias(true); 89 sk_tool_utils::set_portable_typeface(&titlePaint); 90 titlePaint.setTextSize(15 * SK_Scalar1); 91 const char title[] = "Quad Drawn Into Rectangle Clips With " 92 "Indicated Style, Fill and Linecaps, with stroke width 10"; 93 canvas->drawText(title, strlen(title), 94 20 * SK_Scalar1, 95 20 * SK_Scalar1, 96 titlePaint); 97 98 SkRandom rand; 99 SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1); 100 canvas->save(); 101 canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1); 102 canvas->save(); 103 for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) { 104 if (0 < cap) { 105 canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0); 106 } 107 canvas->save(); 108 for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) { 109 if (0 < fill) { 110 canvas->translate(0, rect.height() + 40 * SK_Scalar1); 111 } 112 canvas->save(); 113 for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) { 114 if (0 < style) { 115 canvas->translate(rect.width() + 40 * SK_Scalar1, 0); 116 } 117 118 SkColor color = sk_tool_utils::color_to_565(0xff007000); 119 this->drawPath(path.fPath, canvas, color, rect, 120 gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle, 121 gFills[fill].fFill, SK_Scalar1*10); 122 123 SkPaint rectPaint; 124 rectPaint.setColor(SK_ColorBLACK); 125 rectPaint.setStyle(SkPaint::kStroke_Style); 126 rectPaint.setStrokeWidth(-1); 127 rectPaint.setAntiAlias(true); 128 canvas->drawRect(rect, rectPaint); 129 130 SkPaint labelPaint; 131 labelPaint.setColor(color); 132 labelPaint.setAntiAlias(true); 133 sk_tool_utils::set_portable_typeface(&labelPaint); 134 labelPaint.setTextSize(10 * SK_Scalar1); 135 canvas->drawText(gStyles[style].fName, 136 strlen(gStyles[style].fName), 137 0, rect.height() + 12 * SK_Scalar1, 138 labelPaint); 139 canvas->drawText(gFills[fill].fName, 140 strlen(gFills[fill].fName), 141 0, rect.height() + 24 * SK_Scalar1, 142 labelPaint); 143 canvas->drawText(gCaps[cap].fName, 144 strlen(gCaps[cap].fName), 145 0, rect.height() + 36 * SK_Scalar1, 146 labelPaint); 147 } 148 canvas->restore(); 149 } 150 canvas->restore(); 151 } 152 canvas->restore(); 153 canvas->restore(); 154 } 155 156private: 157 typedef GM INHERITED; 158}; 159 160class QuadClosePathGM : public GM { 161public: 162 QuadClosePathGM() {} 163 164protected: 165 166 SkString onShortName() override { 167 return SkString("quadclosepath"); 168 } 169 170 SkISize onISize() override { return SkISize::Make(1240, 390); } 171 172 void drawPath(SkPath& path,SkCanvas* canvas,SkColor color, 173 const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join, 174 SkPaint::Style style, SkPath::FillType fill, 175 SkScalar strokeWidth) { 176 path.setFillType(fill); 177 SkPaint paint; 178 paint.setStrokeCap(cap); 179 paint.setStrokeWidth(strokeWidth); 180 paint.setStrokeJoin(join); 181 paint.setColor(color); 182 paint.setStyle(style); 183 canvas->save(); 184 canvas->clipRect(clip); 185 canvas->drawPath(path, paint); 186 canvas->restore(); 187 } 188 189 void onDraw(SkCanvas* canvas) override { 190 struct FillAndName { 191 SkPath::FillType fFill; 192 const char* fName; 193 }; 194 constexpr FillAndName gFills[] = { 195 {SkPath::kWinding_FillType, "Winding"}, 196 {SkPath::kEvenOdd_FillType, "Even / Odd"}, 197 {SkPath::kInverseWinding_FillType, "Inverse Winding"}, 198 {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"}, 199 }; 200 struct StyleAndName { 201 SkPaint::Style fStyle; 202 const char* fName; 203 }; 204 constexpr StyleAndName gStyles[] = { 205 {SkPaint::kFill_Style, "Fill"}, 206 {SkPaint::kStroke_Style, "Stroke"}, 207 {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"}, 208 }; 209 struct CapAndName { 210 SkPaint::Cap fCap; 211 SkPaint::Join fJoin; 212 const char* fName; 213 }; 214 constexpr CapAndName gCaps[] = { 215 {SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"}, 216 {SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"}, 217 {SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"} 218 }; 219 struct PathAndName { 220 SkPath fPath; 221 const char* fName; 222 }; 223 PathAndName path; 224 path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1); 225 path.fPath.quadTo(50*SK_Scalar1, 20*SK_Scalar1, 226 75*SK_Scalar1, 10*SK_Scalar1); 227 path.fPath.close(); 228 path.fName = "moveTo-quad-close"; 229 230 SkPaint titlePaint; 231 titlePaint.setColor(SK_ColorBLACK); 232 titlePaint.setAntiAlias(true); 233 sk_tool_utils::set_portable_typeface(&titlePaint); 234 titlePaint.setTextSize(15 * SK_Scalar1); 235 const char title[] = "Quad Closed Drawn Into Rectangle Clips With " 236 "Indicated Style, Fill and Linecaps, with stroke width 10"; 237 canvas->drawText(title, strlen(title), 238 20 * SK_Scalar1, 239 20 * SK_Scalar1, 240 titlePaint); 241 242 SkRandom rand; 243 SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1); 244 canvas->save(); 245 canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1); 246 canvas->save(); 247 for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) { 248 if (0 < cap) { 249 canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0); 250 } 251 canvas->save(); 252 for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) { 253 if (0 < fill) { 254 canvas->translate(0, rect.height() + 40 * SK_Scalar1); 255 } 256 canvas->save(); 257 for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) { 258 if (0 < style) { 259 canvas->translate(rect.width() + 40 * SK_Scalar1, 0); 260 } 261 262 SkColor color = sk_tool_utils::color_to_565(0xff007000); 263 this->drawPath(path.fPath, canvas, color, rect, 264 gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle, 265 gFills[fill].fFill, SK_Scalar1*10); 266 267 SkPaint rectPaint; 268 rectPaint.setColor(SK_ColorBLACK); 269 rectPaint.setStyle(SkPaint::kStroke_Style); 270 rectPaint.setStrokeWidth(-1); 271 rectPaint.setAntiAlias(true); 272 canvas->drawRect(rect, rectPaint); 273 274 SkPaint labelPaint; 275 labelPaint.setColor(color); 276 labelPaint.setAntiAlias(true); 277 sk_tool_utils::set_portable_typeface(&labelPaint); 278 labelPaint.setTextSize(10 * SK_Scalar1); 279 canvas->drawText(gStyles[style].fName, 280 strlen(gStyles[style].fName), 281 0, rect.height() + 12 * SK_Scalar1, 282 labelPaint); 283 canvas->drawText(gFills[fill].fName, 284 strlen(gFills[fill].fName), 285 0, rect.height() + 24 * SK_Scalar1, 286 labelPaint); 287 canvas->drawText(gCaps[cap].fName, 288 strlen(gCaps[cap].fName), 289 0, rect.height() + 36 * SK_Scalar1, 290 labelPaint); 291 } 292 canvas->restore(); 293 } 294 canvas->restore(); 295 } 296 canvas->restore(); 297 canvas->restore(); 298 } 299 300private: 301 typedef GM INHERITED; 302}; 303 304////////////////////////////////////////////////////////////////////////////// 305 306static GM* QuadPathFactory(void*) { return new QuadPathGM; } 307static GMRegistry regQuadPath(QuadPathFactory); 308 309static GM* QuadClosePathFactory(void*) { return new QuadClosePathGM; } 310static GMRegistry regQuadClosePath(QuadClosePathFactory); 311 312} 313