reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | #include "SampleCode.h" |
| 2 | #include "SkView.h" |
| 3 | #include "SkCanvas.h" |
| 4 | #include "SkGradientShader.h" |
| 5 | #include "SkPath.h" |
| 6 | #include "SkRegion.h" |
| 7 | #include "SkShader.h" |
| 8 | #include "SkUtils.h" |
| 9 | #include "SkImageDecoder.h" |
| 10 | |
| 11 | #ifdef SK_DEBUG |
| 12 | static void make_rgn(SkRegion* rgn, int left, int top, int right, int bottom, |
| 13 | size_t count, int32_t runs[]) { |
| 14 | SkIRect r; |
| 15 | r.set(left, top, right, bottom); |
| 16 | |
| 17 | rgn->debugSetRuns(runs, count); |
| 18 | SkASSERT(rgn->getBounds() == r); |
| 19 | } |
| 20 | |
| 21 | static void test_union_bug_1505668(SkRegion* ra, SkRegion* rb, SkRegion* rc) { |
| 22 | static int32_t dataA[] = { |
| 23 | 0x00000001, 0x000001dd, |
| 24 | 0x00000001, 0x0000000c, 0x0000000d, 0x00000025, |
| 25 | 0x7fffffff, 0x000001de, 0x00000001, 0x00000025, |
| 26 | 0x7fffffff, 0x000004b3, 0x00000001, 0x00000026, |
| 27 | 0x7fffffff, 0x000004b4, 0x0000000c, 0x00000026, |
| 28 | 0x7fffffff, 0x00000579, 0x00000000, 0x0000013a, |
| 29 | 0x7fffffff, 0x000005d8, 0x00000000, 0x0000013b, |
| 30 | 0x7fffffff, 0x7fffffff |
| 31 | }; |
| 32 | make_rgn(ra, 0, 1, 315, 1496, SK_ARRAY_COUNT(dataA), dataA); |
| 33 | |
| 34 | static int32_t dataB[] = { |
| 35 | 0x000000b6, 0x000000c4, |
| 36 | 0x000000a1, 0x000000f0, 0x7fffffff, 0x000000d6, |
| 37 | 0x7fffffff, 0x000000e4, 0x00000070, 0x00000079, |
| 38 | 0x000000a1, 0x000000b0, 0x7fffffff, 0x000000e6, |
| 39 | 0x7fffffff, 0x000000f4, 0x00000070, 0x00000079, |
| 40 | 0x000000a1, 0x000000b0, 0x7fffffff, 0x000000f6, |
| 41 | 0x7fffffff, 0x00000104, 0x000000a1, 0x000000b0, |
| 42 | 0x7fffffff, 0x7fffffff |
| 43 | }; |
| 44 | make_rgn(rb, 112, 182, 240, 260, SK_ARRAY_COUNT(dataB), dataB); |
| 45 | |
| 46 | rc->op(*ra, *rb, SkRegion::kUnion_Op); |
| 47 | } |
| 48 | #endif |
| 49 | |
| 50 | static void paint_rgn(SkCanvas* canvas, const SkRegion& rgn, const SkPaint& paint) |
| 51 | { |
| 52 | SkRegion::Iterator iter(rgn); |
| 53 | |
| 54 | for (; !iter.done(); iter.next()) |
| 55 | { |
| 56 | SkRect r; |
| 57 | r.set(iter.rect()); |
| 58 | canvas->drawRect(r, paint); |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | class RegionView : public SkView { |
| 63 | public: |
| 64 | RegionView() |
| 65 | { |
| 66 | fBase.set(100, 100, 150, 150); |
| 67 | fRect = fBase; |
| 68 | fRect.inset(5, 5); |
| 69 | fRect.offset(25, 25); |
| 70 | } |
| 71 | |
| 72 | void build_rgn(SkRegion* rgn, SkRegion::Op op) |
| 73 | { |
| 74 | rgn->setRect(fBase); |
| 75 | SkIRect r = fBase; |
| 76 | r.offset(75, 20); |
| 77 | rgn->op(r, SkRegion::kUnion_Op); |
| 78 | rgn->op(fRect, op); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | protected: |
| 83 | // overrides from SkEventSink |
| 84 | virtual bool onQuery(SkEvent* evt) |
| 85 | { |
| 86 | if (SampleCode::TitleQ(*evt)) |
| 87 | { |
| 88 | SampleCode::TitleR(evt, "Regions"); |
| 89 | return true; |
| 90 | } |
| 91 | return this->INHERITED::onQuery(evt); |
| 92 | } |
| 93 | |
| 94 | void drawOrig(SkCanvas* canvas, bool bg) |
| 95 | { |
| 96 | SkRect r; |
| 97 | SkPaint paint; |
| 98 | |
| 99 | paint.setStyle(SkPaint::kStroke_Style); |
| 100 | if (bg) |
| 101 | paint.setColor(0xFFBBBBBB); |
| 102 | |
| 103 | r.set(fBase); |
| 104 | canvas->drawRect(r, paint); |
| 105 | r.set(fRect); |
| 106 | canvas->drawRect(r, paint); |
| 107 | } |
| 108 | |
| 109 | void drawRgnOped(SkCanvas* canvas, SkRegion::Op op, SkColor color) |
| 110 | { |
| 111 | SkRegion rgn; |
| 112 | |
| 113 | this->build_rgn(&rgn, op); |
| 114 | |
| 115 | { |
| 116 | SkRegion tmp, tmp2(rgn); |
| 117 | |
| 118 | tmp = tmp2; |
| 119 | tmp.translate(5, -3); |
| 120 | |
| 121 | { |
| 122 | char buffer[1000]; |
| 123 | size_t size = tmp.flatten(NULL); |
| 124 | SkASSERT(size <= sizeof(buffer)); |
| 125 | size_t size2 = tmp.flatten(buffer); |
| 126 | SkASSERT(size == size2); |
| 127 | |
| 128 | SkRegion tmp3; |
| 129 | size2 = tmp3.unflatten(buffer); |
| 130 | SkASSERT(size == size2); |
| 131 | |
| 132 | SkASSERT(tmp3 == tmp); |
| 133 | } |
| 134 | |
| 135 | rgn.translate(20, 30, &tmp); |
| 136 | SkASSERT(rgn.isEmpty() || tmp != rgn); |
| 137 | tmp.translate(-20, -30); |
| 138 | SkASSERT(tmp == rgn); |
| 139 | } |
| 140 | |
| 141 | this->drawOrig(canvas, true); |
| 142 | |
| 143 | SkPaint paint; |
| 144 | paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24)); |
| 145 | paint_rgn(canvas, rgn, paint); |
| 146 | |
| 147 | paint.setStyle(SkPaint::kStroke_Style); |
| 148 | paint.setColor(color); |
| 149 | paint_rgn(canvas, rgn, paint); |
| 150 | } |
| 151 | |
| 152 | void drawPathOped(SkCanvas* canvas, SkRegion::Op op, SkColor color) |
| 153 | { |
| 154 | SkRegion rgn; |
| 155 | SkPath path; |
| 156 | |
| 157 | this->build_rgn(&rgn, op); |
| 158 | rgn.getBoundaryPath(&path); |
| 159 | |
| 160 | this->drawOrig(canvas, true); |
| 161 | |
| 162 | SkPaint paint; |
| 163 | |
| 164 | paint.setStyle(SkPaint::kFill_Style); |
| 165 | paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24)); |
| 166 | canvas->drawPath(path, paint); |
| 167 | paint.setColor(color); |
| 168 | paint.setStyle(SkPaint::kStroke_Style); |
| 169 | canvas->drawPath(path, paint); |
| 170 | } |
| 171 | |
| 172 | void drawBG(SkCanvas* canvas) |
| 173 | { |
| 174 | canvas->drawColor(0xFFDDDDDD); |
| 175 | return; |
| 176 | |
| 177 | #if 0 |
| 178 | SkColorTable ct; |
| 179 | SkPMColor colors[] = { SK_ColorRED, SK_ColorBLUE }; |
| 180 | ct.setColors(colors, 2); |
| 181 | ct.setFlags(ct.getFlags() | SkColorTable::kColorsAreOpaque_Flag); |
| 182 | |
| 183 | SkBitmap bm; |
| 184 | bm.setConfig(SkBitmap::kIndex8_Config, 20, 20, 21); |
| 185 | bm.setColorTable(&ct); |
| 186 | bm.allocPixels(); |
| 187 | sk_memset16((uint16_t*)bm.getAddr8(0, 0), 0x0001, bm.rowBytes() * bm.height() / 2); |
| 188 | #endif |
| 189 | #if 0 |
| 190 | SkBitmap bm; |
| 191 | bm.setConfig(SkBitmap::kRGB_565_Config, 20, 20, 42); |
| 192 | bm.allocPixels(); |
| 193 | sk_memset32((uint32_t*)bm.getAddr16(0, 0), 0x0000FFFF, bm.rowBytes() * bm.height() / 4); |
| 194 | #endif |
| 195 | #if 1 |
| 196 | SkBitmap bm; |
| 197 | bm.setConfig(SkBitmap::kARGB_8888_Config, 20, 20); |
| 198 | bm.allocPixels(); |
| 199 | sk_memset32((uint32_t*)bm.getAddr32(0, 0), 0xFFDDDDDD, bm.rowBytes() * bm.height() / 4); |
| 200 | #endif |
| 201 | |
| 202 | SkPaint paint; |
| 203 | |
| 204 | // SkShader* shader = SkShader::CreateBitmapShader(bm, false, SkPaint::kBilinear_FilterType, SkShader::kRepeat_TileMode); |
| 205 | SkPoint pts[] = { 0, 0, SkIntToScalar(100), SkIntToScalar(0) }; |
| 206 | SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE }; |
| 207 | SkShader* shader = SkGradientShader::CreateLinear(pts, colors, nil, 2, SkShader::kMirror_TileMode); |
| 208 | paint.setShader(shader)->unref(); |
| 209 | |
| 210 | canvas->drawPaint(paint); |
| 211 | } |
| 212 | |
| 213 | virtual void onDraw(SkCanvas* canvas) |
| 214 | { |
| 215 | if (true) { |
| 216 | SkRect r = { 0, 0, 1 << 30, 1 << 30 }; |
| 217 | bool open = canvas->clipRect(r); |
| 218 | SkDebugf("---- giant clip is %d\n", open); |
| 219 | } |
| 220 | this->drawBG(canvas); |
| 221 | |
| 222 | #ifdef SK_DEBUG |
| 223 | if (true) { |
| 224 | SkRegion a, b, c; |
| 225 | test_union_bug_1505668(&a, &b, &c); |
| 226 | |
| 227 | if (false) { // draw the result of the test |
| 228 | SkPaint paint; |
| 229 | |
| 230 | canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); |
| 231 | paint.setColor(SK_ColorRED); |
| 232 | paint_rgn(canvas, a, paint); |
| 233 | paint.setColor(0x800000FF); |
| 234 | paint_rgn(canvas, b, paint); |
| 235 | paint.setColor(SK_ColorBLACK); |
| 236 | paint.setStyle(SkPaint::kStroke_Style); |
| 237 | // paint_rgn(canvas, c, paint); |
| 238 | return; |
| 239 | } |
| 240 | } |
| 241 | #endif |
| 242 | |
| 243 | static const struct { |
| 244 | SkColor fColor; |
| 245 | const char* fName; |
| 246 | SkRegion::Op fOp; |
| 247 | } gOps[] = { |
| 248 | { SK_ColorBLACK, "Difference", SkRegion::kDifference_Op }, |
| 249 | { SK_ColorRED, "Intersect", SkRegion::kIntersect_Op }, |
| 250 | { 0xFF008800, "Union", SkRegion::kUnion_Op }, |
| 251 | { SK_ColorBLUE, "XOR", SkRegion::kXOR_Op } |
| 252 | }; |
| 253 | |
| 254 | SkPaint textPaint; |
| 255 | textPaint.setAntiAlias(true); |
| 256 | textPaint.setTextSize(SK_Scalar1*24); |
| 257 | |
| 258 | this->drawOrig(canvas, false); |
| 259 | canvas->save(); |
| 260 | canvas->translate(SkIntToScalar(200), 0); |
| 261 | this->drawRgnOped(canvas, SkRegion::kUnion_Op, SK_ColorBLACK); |
| 262 | canvas->restore(); |
| 263 | |
| 264 | canvas->translate(0, SkIntToScalar(200)); |
| 265 | |
| 266 | for (int op = 0; op < SK_ARRAY_COUNT(gOps); op++) |
| 267 | { |
| 268 | canvas->drawText(gOps[op].fName, strlen(gOps[op].fName), SkIntToScalar(75), SkIntToScalar(50), textPaint); |
| 269 | |
| 270 | this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| 271 | |
| 272 | if (true) |
| 273 | { |
| 274 | canvas->save(); |
| 275 | canvas->translate(0, SkIntToScalar(200)); |
| 276 | this->drawPathOped(canvas, gOps[op].fOp, gOps[op].fColor); |
| 277 | canvas->restore(); |
| 278 | } |
| 279 | |
| 280 | canvas->translate(SkIntToScalar(200), 0); |
| 281 | } |
| 282 | |
| 283 | if (false) |
| 284 | { |
| 285 | SkBitmap bitmap; |
| 286 | |
| 287 | bitmap.setConfig(SkBitmap::kARGB_8888_Config, 100, 100); |
| 288 | bitmap.allocPixels(); |
| 289 | bitmap.eraseColor(0); |
| 290 | |
| 291 | SkCanvas canvas(bitmap); |
| 292 | SkPaint paint; |
| 293 | SkRect r; |
| 294 | |
| 295 | paint.setAntiAlias(true); |
| 296 | paint.setARGB(0xFF, 0xFF, 0, 0xFF); |
| 297 | r.set(0, 0, SkIntToScalar(100), SkIntToScalar(100)); |
| 298 | canvas.drawOval(r, paint); |
| 299 | |
| 300 | SkImageEncoder* en = SkImageEncoder::Create(SkImageEncoder::kPNG_Type); |
| 301 | en->encodeFile("testfile.png", bitmap); |
| 302 | delete en; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) |
| 307 | { |
| 308 | return fRect.contains(SkScalarRound(x), SkScalarRound(y)) ? new Click(this) : nil; |
| 309 | } |
| 310 | |
| 311 | virtual bool onClick(Click* click) |
| 312 | { |
| 313 | fRect.offset(click->fICurr.fX - click->fIPrev.fX, |
| 314 | click->fICurr.fY - click->fIPrev.fY); |
| 315 | this->inval(nil); |
| 316 | return true; |
| 317 | } |
| 318 | |
| 319 | private: |
| 320 | SkIRect fBase, fRect; |
| 321 | |
| 322 | typedef SkView INHERITED; |
| 323 | }; |
| 324 | |
| 325 | ////////////////////////////////////////////////////////////////////////////// |
| 326 | |
| 327 | static SkView* MyFactory() { return new RegionView; } |
| 328 | static SkViewRegister reg(MyFactory); |
| 329 | |