Rev 20 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 20 | reyssat | 1 | /* This notice must be untouched at all times. |
| 2 | |||
| 3 | wz_jsgraphics.js v. 2.36 |
||
| 4 | The latest version is available at |
||
| 5 | http://www.walterzorn.com |
||
| 6 | or http://www.devira.com |
||
| 7 | or http://www.walterzorn.de |
||
| 8 | |||
| 9 | Copyright (c) 2002-2004 Walter Zorn. All rights reserved. |
||
| 10 | Created 3. 11. 2002 by Walter Zorn (Web: http://www.walterzorn.com ) |
||
| 11 | Last modified: 21. 6. 2006 |
||
| 12 | |||
| 13 | Performance optimizations for Internet Explorer |
||
| 14 | by Thomas Frank and John Holdsworth. |
||
| 15 | fillPolygon method implemented by Matthieu Haller. |
||
| 16 | |||
| 17 | High Performance JavaScript Graphics Library. |
||
| 18 | Provides methods |
||
| 19 | - to draw lines, rectangles, ellipses, polygons |
||
| 20 | with specifiable line thickness, |
||
| 21 | - to fill rectangles and ellipses |
||
| 22 | - to draw text. |
||
| 23 | NOTE: Operations, functions and branching have rather been optimized |
||
| 24 | to efficiency and speed than to shortness of source code. |
||
| 25 | |||
| 26 | LICENSE: LGPL |
||
| 27 | |||
| 28 | This library is free software; you can redistribute it and/or |
||
| 29 | modify it under the terms of the GNU Lesser General Public |
||
| 30 | License (LGPL) as published by the Free Software Foundation; either |
||
| 31 | version 2.1 of the License, or (at your option) any later version. |
||
| 32 | |||
| 33 | This library is distributed in the hope that it will be useful, |
||
| 34 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 35 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
| 36 | Lesser General Public License for more details. |
||
| 37 | |||
| 38 | You should have received a copy of the GNU Lesser General Public |
||
| 39 | License along with this library; if not, write to the Free Software |
||
| 40 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA, |
||
| 41 | or see http://www.gnu.org/copyleft/lesser.html |
||
| 42 | */ |
||
| 43 | |||
| 44 | |||
| 45 | var jg_ihtm, jg_ie, jg_fast, jg_dom, jg_moz, |
||
| 46 | jg_n4 = (document.layers && typeof document.classes != "undefined"); |
||
| 47 | |||
| 48 | |||
| 49 | function chkDHTM(x, i) |
||
| 50 | { |
||
| 51 | x = document.body || null; |
||
| 52 | jg_ie = x && typeof x.insertAdjacentHTML != "undefined"; |
||
| 53 | jg_dom = (x && !jg_ie && |
||
| 54 | typeof x.appendChild != "undefined" && |
||
| 55 | typeof document.createRange != "undefined" && |
||
| 56 | typeof (i = document.createRange()).setStartBefore != "undefined" && |
||
| 57 | typeof i.createContextualFragment != "undefined"); |
||
| 58 | jg_ihtm = !jg_ie && !jg_dom && x && typeof x.innerHTML != "undefined"; |
||
| 59 | jg_fast = jg_ie && document.all && !window.opera; |
||
| 60 | jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined"; |
||
| 61 | } |
||
| 62 | |||
| 63 | |||
| 64 | function pntDoc() |
||
| 65 | { |
||
| 66 | this.wnd.document.write(jg_fast? this.htmRpc() : this.htm); |
||
| 67 | this.htm = ''; |
||
| 68 | } |
||
| 69 | |||
| 70 | |||
| 71 | function pntCnvDom() |
||
| 72 | { |
||
| 73 | var x = this.wnd.document.createRange(); |
||
| 74 | x.setStartBefore(this.cnv); |
||
| 75 | x = x.createContextualFragment(jg_fast? this.htmRpc() : this.htm); |
||
| 76 | if(this.cnv) this.cnv.appendChild(x); |
||
| 77 | this.htm = ''; |
||
| 78 | } |
||
| 79 | |||
| 80 | |||
| 81 | function pntCnvIe() |
||
| 82 | { |
||
| 83 | if(this.cnv) this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this.htmRpc() : this.htm); |
||
| 84 | this.htm = ''; |
||
| 85 | } |
||
| 86 | |||
| 87 | |||
| 88 | function pntCnvIhtm() |
||
| 89 | { |
||
| 90 | if(this.cnv) this.cnv.innerHTML += this.htm; |
||
| 91 | this.htm = ''; |
||
| 92 | } |
||
| 93 | |||
| 94 | |||
| 95 | function pntCnv() |
||
| 96 | { |
||
| 97 | this.htm = ''; |
||
| 98 | } |
||
| 99 | |||
| 100 | |||
| 101 | function mkDiv(x, y, w, h) |
||
| 102 | { |
||
| 103 | this.htm += '<div style="position:absolute;'+ |
||
| 104 | 'left:' + x + 'px;'+ |
||
| 105 | 'top:' + y + 'px;'+ |
||
| 106 | 'width:' + w + 'px;'+ |
||
| 107 | 'height:' + h + 'px;'+ |
||
| 108 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
||
| 109 | 'background-color:' + this.color + |
||
| 110 | (!jg_moz? ';overflow:hidden' : '')+ |
||
| 111 | ';"><\/div>'; |
||
| 112 | } |
||
| 113 | |||
| 114 | |||
| 115 | function mkDivIe(x, y, w, h) |
||
| 116 | { |
||
| 117 | this.htm += '%%'+this.color+';'+x+';'+y+';'+w+';'+h+';'; |
||
| 118 | } |
||
| 119 | |||
| 120 | |||
| 121 | function mkDivPrt(x, y, w, h) |
||
| 122 | { |
||
| 123 | this.htm += '<div style="position:absolute;'+ |
||
| 124 | 'border-left:' + w + 'px solid ' + this.color + ';'+ |
||
| 125 | 'left:' + x + 'px;'+ |
||
| 126 | 'top:' + y + 'px;'+ |
||
| 127 | 'width:0px;'+ |
||
| 128 | 'height:' + h + 'px;'+ |
||
| 129 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
||
| 130 | 'background-color:' + this.color + |
||
| 131 | (!jg_moz? ';overflow:hidden' : '')+ |
||
| 132 | ';"><\/div>'; |
||
| 133 | } |
||
| 134 | |||
| 135 | |||
| 136 | function mkLyr(x, y, w, h) |
||
| 137 | { |
||
| 138 | this.htm += '<layer '+ |
||
| 139 | 'left="' + x + '" '+ |
||
| 140 | 'top="' + y + '" '+ |
||
| 141 | 'width="' + w + '" '+ |
||
| 142 | 'height="' + h + '" '+ |
||
| 143 | 'bgcolor="' + this.color + '"><\/layer>\n'; |
||
| 144 | } |
||
| 145 | |||
| 146 | |||
| 147 | var regex = /%%([^;]+);([^;]+);([^;]+);([^;]+);([^;]+);/g; |
||
| 148 | function htmRpc() |
||
| 149 | { |
||
| 150 | return this.htm.replace( |
||
| 151 | regex, |
||
| 152 | '<div style="overflow:hidden;position:absolute;background-color:'+ |
||
| 153 | '$1;left:$2;top:$3;width:$4;height:$5"></div>\n'); |
||
| 154 | } |
||
| 155 | |||
| 156 | |||
| 157 | function htmPrtRpc() |
||
| 158 | { |
||
| 159 | return this.htm.replace( |
||
| 160 | regex, |
||
| 161 | '<div style="overflow:hidden;position:absolute;background-color:'+ |
||
| 162 | '$1;left:$2;top:$3;width:$4;height:$5;border-left:$4px solid $1"></div>\n'); |
||
| 163 | } |
||
| 164 | |||
| 165 | |||
| 166 | function mkLin(x1, y1, x2, y2) |
||
| 167 | { |
||
| 168 | if (x1 > x2) |
||
| 169 | { |
||
| 170 | var _x2 = x2; |
||
| 171 | var _y2 = y2; |
||
| 172 | x2 = x1; |
||
| 173 | y2 = y1; |
||
| 174 | x1 = _x2; |
||
| 175 | y1 = _y2; |
||
| 176 | } |
||
| 177 | var dx = x2-x1, dy = Math.abs(y2-y1), |
||
| 178 | x = x1, y = y1, |
||
| 179 | yIncr = (y1 > y2)? -1 : 1; |
||
| 180 | |||
| 181 | if (dx >= dy) |
||
| 182 | { |
||
| 183 | var pr = dy<<1, |
||
| 184 | pru = pr - (dx<<1), |
||
| 185 | p = pr-dx, |
||
| 186 | ox = x; |
||
| 187 | while ((dx--) > 0) |
||
| 188 | { |
||
| 189 | ++x; |
||
| 190 | if (p > 0) |
||
| 191 | { |
||
| 192 | this.mkDiv(ox, y, x-ox, 1); |
||
| 193 | y += yIncr; |
||
| 194 | p += pru; |
||
| 195 | ox = x; |
||
| 196 | } |
||
| 197 | else p += pr; |
||
| 198 | } |
||
| 199 | this.mkDiv(ox, y, x2-ox+1, 1); |
||
| 200 | } |
||
| 201 | |||
| 202 | else |
||
| 203 | { |
||
| 204 | var pr = dx<<1, |
||
| 205 | pru = pr - (dy<<1), |
||
| 206 | p = pr-dy, |
||
| 207 | oy = y; |
||
| 208 | if (y2 <= y1) |
||
| 209 | { |
||
| 210 | while ((dy--) > 0) |
||
| 211 | { |
||
| 212 | if (p > 0) |
||
| 213 | { |
||
| 214 | this.mkDiv(x++, y, 1, oy-y+1); |
||
| 215 | y += yIncr; |
||
| 216 | p += pru; |
||
| 217 | oy = y; |
||
| 218 | } |
||
| 219 | else |
||
| 220 | { |
||
| 221 | y += yIncr; |
||
| 222 | p += pr; |
||
| 223 | } |
||
| 224 | } |
||
| 225 | this.mkDiv(x2, y2, 1, oy-y2+1); |
||
| 226 | } |
||
| 227 | else |
||
| 228 | { |
||
| 229 | while ((dy--) > 0) |
||
| 230 | { |
||
| 231 | y += yIncr; |
||
| 232 | if (p > 0) |
||
| 233 | { |
||
| 234 | this.mkDiv(x++, oy, 1, y-oy); |
||
| 235 | p += pru; |
||
| 236 | oy = y; |
||
| 237 | } |
||
| 238 | else p += pr; |
||
| 239 | } |
||
| 240 | this.mkDiv(x2, oy, 1, y2-oy+1); |
||
| 241 | } |
||
| 242 | } |
||
| 243 | } |
||
| 244 | |||
| 245 | |||
| 246 | function mkLin2D(x1, y1, x2, y2) |
||
| 247 | { |
||
| 248 | if (x1 > x2) |
||
| 249 | { |
||
| 250 | var _x2 = x2; |
||
| 251 | var _y2 = y2; |
||
| 252 | x2 = x1; |
||
| 253 | y2 = y1; |
||
| 254 | x1 = _x2; |
||
| 255 | y1 = _y2; |
||
| 256 | } |
||
| 257 | var dx = x2-x1, dy = Math.abs(y2-y1), |
||
| 258 | x = x1, y = y1, |
||
| 259 | yIncr = (y1 > y2)? -1 : 1; |
||
| 260 | |||
| 261 | var s = this.stroke; |
||
| 262 | if (dx >= dy) |
||
| 263 | { |
||
| 264 | if (dx > 0 && s-3 > 0) |
||
| 265 | { |
||
| 266 | var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx; |
||
| 267 | _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1; |
||
| 268 | } |
||
| 269 | else var _s = s; |
||
| 270 | var ad = Math.ceil(s/2); |
||
| 271 | |||
| 272 | var pr = dy<<1, |
||
| 273 | pru = pr - (dx<<1), |
||
| 274 | p = pr-dx, |
||
| 275 | ox = x; |
||
| 276 | while ((dx--) > 0) |
||
| 277 | { |
||
| 278 | ++x; |
||
| 279 | if (p > 0) |
||
| 280 | { |
||
| 281 | this.mkDiv(ox, y, x-ox+ad, _s); |
||
| 282 | y += yIncr; |
||
| 283 | p += pru; |
||
| 284 | ox = x; |
||
| 285 | } |
||
| 286 | else p += pr; |
||
| 287 | } |
||
| 288 | this.mkDiv(ox, y, x2-ox+ad+1, _s); |
||
| 289 | } |
||
| 290 | |||
| 291 | else |
||
| 292 | { |
||
| 293 | if (s-3 > 0) |
||
| 294 | { |
||
| 295 | var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy; |
||
| 296 | _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1; |
||
| 297 | } |
||
| 298 | else var _s = s; |
||
| 299 | var ad = Math.round(s/2); |
||
| 300 | |||
| 301 | var pr = dx<<1, |
||
| 302 | pru = pr - (dy<<1), |
||
| 303 | p = pr-dy, |
||
| 304 | oy = y; |
||
| 305 | if (y2 <= y1) |
||
| 306 | { |
||
| 307 | ++ad; |
||
| 308 | while ((dy--) > 0) |
||
| 309 | { |
||
| 310 | if (p > 0) |
||
| 311 | { |
||
| 312 | this.mkDiv(x++, y, _s, oy-y+ad); |
||
| 313 | y += yIncr; |
||
| 314 | p += pru; |
||
| 315 | oy = y; |
||
| 316 | } |
||
| 317 | else |
||
| 318 | { |
||
| 319 | y += yIncr; |
||
| 320 | p += pr; |
||
| 321 | } |
||
| 322 | } |
||
| 323 | this.mkDiv(x2, y2, _s, oy-y2+ad); |
||
| 324 | } |
||
| 325 | else |
||
| 326 | { |
||
| 327 | while ((dy--) > 0) |
||
| 328 | { |
||
| 329 | y += yIncr; |
||
| 330 | if (p > 0) |
||
| 331 | { |
||
| 332 | this.mkDiv(x++, oy, _s, y-oy+ad); |
||
| 333 | p += pru; |
||
| 334 | oy = y; |
||
| 335 | } |
||
| 336 | else p += pr; |
||
| 337 | } |
||
| 338 | this.mkDiv(x2, oy, _s, y2-oy+ad+1); |
||
| 339 | } |
||
| 340 | } |
||
| 341 | } |
||
| 342 | |||
| 343 | |||
| 344 | function mkLinDott(x1, y1, x2, y2) |
||
| 345 | { |
||
| 346 | if (x1 > x2) |
||
| 347 | { |
||
| 348 | var _x2 = x2; |
||
| 349 | var _y2 = y2; |
||
| 350 | x2 = x1; |
||
| 351 | y2 = y1; |
||
| 352 | x1 = _x2; |
||
| 353 | y1 = _y2; |
||
| 354 | } |
||
| 355 | var dx = x2-x1, dy = Math.abs(y2-y1), |
||
| 356 | x = x1, y = y1, |
||
| 357 | yIncr = (y1 > y2)? -1 : 1, |
||
| 358 | drw = true; |
||
| 359 | if (dx >= dy) |
||
| 360 | { |
||
| 361 | var pr = dy<<1, |
||
| 362 | pru = pr - (dx<<1), |
||
| 363 | p = pr-dx; |
||
| 364 | while ((dx--) > 0) |
||
| 365 | { |
||
| 366 | if (drw) this.mkDiv(x, y, 1, 1); |
||
| 367 | drw = !drw; |
||
| 368 | if (p > 0) |
||
| 369 | { |
||
| 370 | y += yIncr; |
||
| 371 | p += pru; |
||
| 372 | } |
||
| 373 | else p += pr; |
||
| 374 | ++x; |
||
| 375 | } |
||
| 376 | if (drw) this.mkDiv(x, y, 1, 1); |
||
| 377 | } |
||
| 378 | |||
| 379 | else |
||
| 380 | { |
||
| 381 | var pr = dx<<1, |
||
| 382 | pru = pr - (dy<<1), |
||
| 383 | p = pr-dy; |
||
| 384 | while ((dy--) > 0) |
||
| 385 | { |
||
| 386 | if (drw) this.mkDiv(x, y, 1, 1); |
||
| 387 | drw = !drw; |
||
| 388 | y += yIncr; |
||
| 389 | if (p > 0) |
||
| 390 | { |
||
| 391 | ++x; |
||
| 392 | p += pru; |
||
| 393 | } |
||
| 394 | else p += pr; |
||
| 395 | } |
||
| 396 | if (drw) this.mkDiv(x, y, 1, 1); |
||
| 397 | } |
||
| 398 | } |
||
| 399 | |||
| 400 | |||
| 401 | function mkOv(left, top, width, height) |
||
| 402 | { |
||
| 403 | var a = width>>1, b = height>>1, |
||
| 404 | wod = width&1, hod = (height&1)+1, |
||
| 405 | cx = left+a, cy = top+b, |
||
| 406 | x = 0, y = b, |
||
| 407 | ox = 0, oy = b, |
||
| 408 | aa = (a*a)<<1, bb = (b*b)<<1, |
||
| 409 | st = (aa>>1)*(1-(b<<1)) + bb, |
||
| 410 | tt = (bb>>1) - aa*((b<<1)-1), |
||
| 411 | w, h; |
||
| 412 | while (y > 0) |
||
| 413 | { |
||
| 414 | if (st < 0) |
||
| 415 | { |
||
| 416 | st += bb*((x<<1)+3); |
||
| 417 | tt += (bb<<1)*(++x); |
||
| 418 | } |
||
| 419 | else if (tt < 0) |
||
| 420 | { |
||
| 421 | st += bb*((x<<1)+3) - (aa<<1)*(y-1); |
||
| 422 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3); |
||
| 423 | w = x-ox; |
||
| 424 | h = oy-y; |
||
| 425 | if (w&2 && h&2) |
||
| 426 | { |
||
| 427 | this.mkOvQds(cx, cy, -x+2, ox+wod, -oy, oy-1+hod, 1, 1); |
||
| 428 | this.mkOvQds(cx, cy, -x+1, x-1+wod, -y-1, y+hod, 1, 1); |
||
| 429 | } |
||
| 430 | else this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, oy-h+hod, w, h); |
||
| 431 | ox = x; |
||
| 432 | oy = y; |
||
| 433 | } |
||
| 434 | else |
||
| 435 | { |
||
| 436 | tt -= aa*((y<<1)-3); |
||
| 437 | st -= (aa<<1)*(--y); |
||
| 438 | } |
||
| 439 | } |
||
| 440 | this.mkDiv(cx-a, cy-oy, a-ox+1, (oy<<1)+hod); |
||
| 441 | this.mkDiv(cx+ox+wod, cy-oy, a-ox+1, (oy<<1)+hod); |
||
| 442 | } |
||
| 443 | |||
| 444 | |||
| 445 | function mkOv2D(left, top, width, height) |
||
| 446 | { |
||
| 447 | var s = this.stroke; |
||
| 448 | width += s-1; |
||
| 449 | height += s-1; |
||
| 450 | var a = width>>1, b = height>>1, |
||
| 451 | wod = width&1, hod = (height&1)+1, |
||
| 452 | cx = left+a, cy = top+b, |
||
| 453 | x = 0, y = b, |
||
| 454 | aa = (a*a)<<1, bb = (b*b)<<1, |
||
| 455 | st = (aa>>1)*(1-(b<<1)) + bb, |
||
| 456 | tt = (bb>>1) - aa*((b<<1)-1); |
||
| 457 | |||
| 458 | if (s-4 < 0 && (!(s-2) || width-51 > 0 && height-51 > 0)) |
||
| 459 | { |
||
| 460 | var ox = 0, oy = b, |
||
| 461 | w, h, |
||
| 462 | pxl, pxr, pxt, pxb, pxw; |
||
| 463 | while (y > 0) |
||
| 464 | { |
||
| 465 | if (st < 0) |
||
| 466 | { |
||
| 467 | st += bb*((x<<1)+3); |
||
| 468 | tt += (bb<<1)*(++x); |
||
| 469 | } |
||
| 470 | else if (tt < 0) |
||
| 471 | { |
||
| 472 | st += bb*((x<<1)+3) - (aa<<1)*(y-1); |
||
| 473 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3); |
||
| 474 | w = x-ox; |
||
| 475 | h = oy-y; |
||
| 476 | |||
| 477 | if (w-1) |
||
| 478 | { |
||
| 479 | pxw = w+1+(s&1); |
||
| 480 | h = s; |
||
| 481 | } |
||
| 482 | else if (h-1) |
||
| 483 | { |
||
| 484 | pxw = s; |
||
| 485 | h += 1+(s&1); |
||
| 486 | } |
||
| 487 | else pxw = h = s; |
||
| 488 | this.mkOvQds(cx, cy, -x+1, ox-pxw+w+wod, -oy, -h+oy+hod, pxw, h); |
||
| 489 | ox = x; |
||
| 490 | oy = y; |
||
| 491 | } |
||
| 492 | else |
||
| 493 | { |
||
| 494 | tt -= aa*((y<<1)-3); |
||
| 495 | st -= (aa<<1)*(--y); |
||
| 496 | } |
||
| 497 | } |
||
| 498 | this.mkDiv(cx-a, cy-oy, s, (oy<<1)+hod); |
||
| 499 | this.mkDiv(cx+a+wod-s+1, cy-oy, s, (oy<<1)+hod); |
||
| 500 | } |
||
| 501 | |||
| 502 | else |
||
| 503 | { |
||
| 504 | var _a = (width-((s-1)<<1))>>1, |
||
| 505 | _b = (height-((s-1)<<1))>>1, |
||
| 506 | _x = 0, _y = _b, |
||
| 507 | _aa = (_a*_a)<<1, _bb = (_b*_b)<<1, |
||
| 508 | _st = (_aa>>1)*(1-(_b<<1)) + _bb, |
||
| 509 | _tt = (_bb>>1) - _aa*((_b<<1)-1), |
||
| 510 | |||
| 511 | pxl = new Array(), |
||
| 512 | pxt = new Array(), |
||
| 513 | _pxb = new Array(); |
||
| 514 | pxl[0] = 0; |
||
| 515 | pxt[0] = b; |
||
| 516 | _pxb[0] = _b-1; |
||
| 517 | while (y > 0) |
||
| 518 | { |
||
| 519 | if (st < 0) |
||
| 520 | { |
||
| 521 | st += bb*((x<<1)+3); |
||
| 522 | tt += (bb<<1)*(++x); |
||
| 523 | pxl[pxl.length] = x; |
||
| 524 | pxt[pxt.length] = y; |
||
| 525 | } |
||
| 526 | else if (tt < 0) |
||
| 527 | { |
||
| 528 | st += bb*((x<<1)+3) - (aa<<1)*(y-1); |
||
| 529 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3); |
||
| 530 | pxl[pxl.length] = x; |
||
| 531 | pxt[pxt.length] = y; |
||
| 532 | } |
||
| 533 | else |
||
| 534 | { |
||
| 535 | tt -= aa*((y<<1)-3); |
||
| 536 | st -= (aa<<1)*(--y); |
||
| 537 | } |
||
| 538 | |||
| 539 | if (_y > 0) |
||
| 540 | { |
||
| 541 | if (_st < 0) |
||
| 542 | { |
||
| 543 | _st += _bb*((_x<<1)+3); |
||
| 544 | _tt += (_bb<<1)*(++_x); |
||
| 545 | _pxb[_pxb.length] = _y-1; |
||
| 546 | } |
||
| 547 | else if (_tt < 0) |
||
| 548 | { |
||
| 549 | _st += _bb*((_x<<1)+3) - (_aa<<1)*(_y-1); |
||
| 550 | _tt += (_bb<<1)*(++_x) - _aa*(((_y--)<<1)-3); |
||
| 551 | _pxb[_pxb.length] = _y-1; |
||
| 552 | } |
||
| 553 | else |
||
| 554 | { |
||
| 555 | _tt -= _aa*((_y<<1)-3); |
||
| 556 | _st -= (_aa<<1)*(--_y); |
||
| 557 | _pxb[_pxb.length-1]--; |
||
| 558 | } |
||
| 559 | } |
||
| 560 | } |
||
| 561 | |||
| 562 | var ox = 0, oy = b, |
||
| 563 | _oy = _pxb[0], |
||
| 564 | l = pxl.length, |
||
| 565 | w, h; |
||
| 566 | for (var i = 0; i < l; i++) |
||
| 567 | { |
||
| 568 | if (typeof _pxb[i] != "undefined") |
||
| 569 | { |
||
| 570 | if (_pxb[i] < _oy || pxt[i] < oy) |
||
| 571 | { |
||
| 572 | x = pxl[i]; |
||
| 573 | this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, _oy+hod, x-ox, oy-_oy); |
||
| 574 | ox = x; |
||
| 575 | oy = pxt[i]; |
||
| 576 | _oy = _pxb[i]; |
||
| 577 | } |
||
| 578 | } |
||
| 579 | else |
||
| 580 | { |
||
| 581 | x = pxl[i]; |
||
| 582 | this.mkDiv(cx-x+1, cy-oy, 1, (oy<<1)+hod); |
||
| 583 | this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); |
||
| 584 | ox = x; |
||
| 585 | oy = pxt[i]; |
||
| 586 | } |
||
| 587 | } |
||
| 588 | this.mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod); |
||
| 589 | this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); |
||
| 590 | } |
||
| 591 | } |
||
| 592 | |||
| 593 | |||
| 594 | function mkOvDott(left, top, width, height) |
||
| 595 | { |
||
| 596 | var a = width>>1, b = height>>1, |
||
| 597 | wod = width&1, hod = height&1, |
||
| 598 | cx = left+a, cy = top+b, |
||
| 599 | x = 0, y = b, |
||
| 600 | aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1, |
||
| 601 | st = (aa2>>1)*(1-(b<<1)) + bb, |
||
| 602 | tt = (bb>>1) - aa2*((b<<1)-1), |
||
| 603 | drw = true; |
||
| 604 | while (y > 0) |
||
| 605 | { |
||
| 606 | if (st < 0) |
||
| 607 | { |
||
| 608 | st += bb*((x<<1)+3); |
||
| 609 | tt += (bb<<1)*(++x); |
||
| 610 | } |
||
| 611 | else if (tt < 0) |
||
| 612 | { |
||
| 613 | st += bb*((x<<1)+3) - aa4*(y-1); |
||
| 614 | tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-3); |
||
| 615 | } |
||
| 616 | else |
||
| 617 | { |
||
| 618 | tt -= aa2*((y<<1)-3); |
||
| 619 | st -= aa4*(--y); |
||
| 620 | } |
||
| 621 | if (drw) this.mkOvQds(cx, cy, -x, x+wod, -y, y+hod, 1, 1); |
||
| 622 | drw = !drw; |
||
| 623 | } |
||
| 624 | } |
||
| 625 | |||
| 626 | |||
| 627 | function mkRect(x, y, w, h) |
||
| 628 | { |
||
| 629 | var s = this.stroke; |
||
| 630 | this.mkDiv(x, y, w, s); |
||
| 631 | this.mkDiv(x+w, y, s, h); |
||
| 632 | this.mkDiv(x, y+h, w+s, s); |
||
| 633 | this.mkDiv(x, y+s, s, h-s); |
||
| 634 | } |
||
| 635 | |||
| 636 | |||
| 637 | function mkRectDott(x, y, w, h) |
||
| 638 | { |
||
| 639 | this.drawLine(x, y, x+w, y); |
||
| 640 | this.drawLine(x+w, y, x+w, y+h); |
||
| 641 | this.drawLine(x, y+h, x+w, y+h); |
||
| 642 | this.drawLine(x, y, x, y+h); |
||
| 643 | } |
||
| 644 | |||
| 645 | |||
| 646 | function jsgFont() |
||
| 647 | { |
||
| 648 | this.PLAIN = 'font-weight:normal;'; |
||
| 649 | this.BOLD = 'font-weight:bold;'; |
||
| 650 | this.ITALIC = 'font-style:italic;'; |
||
| 651 | this.ITALIC_BOLD = this.ITALIC + this.BOLD; |
||
| 652 | this.BOLD_ITALIC = this.ITALIC_BOLD; |
||
| 653 | } |
||
| 654 | var Font = new jsgFont(); |
||
| 655 | |||
| 656 | |||
| 657 | function jsgStroke() |
||
| 658 | { |
||
| 659 | this.DOTTED = -1; |
||
| 660 | } |
||
| 661 | var Stroke = new jsgStroke(); |
||
| 662 | |||
| 663 | |||
| 664 | function jsGraphics(id, wnd) |
||
| 665 | { |
||
| 666 | this.setColor = new Function('arg', 'this.color = arg.toLowerCase();'); |
||
| 667 | |||
| 668 | this.setStroke = function(x) |
||
| 669 | { |
||
| 670 | this.stroke = x; |
||
| 671 | if (!(x+1)) |
||
| 672 | { |
||
| 673 | this.drawLine = mkLinDott; |
||
| 674 | this.mkOv = mkOvDott; |
||
| 675 | this.drawRect = mkRectDott; |
||
| 676 | } |
||
| 677 | else if (x-1 > 0) |
||
| 678 | { |
||
| 679 | this.drawLine = mkLin2D; |
||
| 680 | this.mkOv = mkOv2D; |
||
| 681 | this.drawRect = mkRect; |
||
| 682 | } |
||
| 683 | else |
||
| 684 | { |
||
| 685 | this.drawLine = mkLin; |
||
| 686 | this.mkOv = mkOv; |
||
| 687 | this.drawRect = mkRect; |
||
| 688 | } |
||
| 689 | }; |
||
| 690 | |||
| 691 | |||
| 692 | this.setPrintable = function(arg) |
||
| 693 | { |
||
| 694 | this.printable = arg; |
||
| 695 | if (jg_fast) |
||
| 696 | { |
||
| 697 | this.mkDiv = mkDivIe; |
||
| 698 | this.htmRpc = arg? htmPrtRpc : htmRpc; |
||
| 699 | } |
||
| 700 | else this.mkDiv = jg_n4? mkLyr : arg? mkDivPrt : mkDiv; |
||
| 701 | }; |
||
| 702 | |||
| 703 | |||
| 704 | this.setFont = function(fam, sz, sty) |
||
| 705 | { |
||
| 706 | this.ftFam = fam; |
||
| 707 | this.ftSz = sz; |
||
| 708 | this.ftSty = sty || Font.PLAIN; |
||
| 709 | }; |
||
| 710 | |||
| 711 | |||
| 712 | this.drawPolyline = this.drawPolyLine = function(x, y, s) |
||
| 713 | { |
||
| 714 | for (var i=0 ; i<x.length-1 ; i++ ) |
||
| 715 | this.drawLine(x[i], y[i], x[i+1], y[i+1]); |
||
| 716 | }; |
||
| 717 | |||
| 718 | |||
| 719 | this.fillRect = function(x, y, w, h) |
||
| 720 | { |
||
| 721 | this.mkDiv(x, y, w, h); |
||
| 722 | }; |
||
| 723 | |||
| 724 | |||
| 725 | this.drawPolygon = function(x, y) |
||
| 726 | { |
||
| 727 | this.drawPolyline(x, y); |
||
| 728 | this.drawLine(x[x.length-1], y[x.length-1], x[0], y[0]); |
||
| 729 | }; |
||
| 730 | |||
| 731 | |||
| 732 | this.drawEllipse = this.drawOval = function(x, y, w, h) |
||
| 733 | { |
||
| 734 | this.mkOv(x, y, w, h); |
||
| 735 | }; |
||
| 736 | |||
| 737 | |||
| 738 | this.fillEllipse = this.fillOval = function(left, top, w, h) |
||
| 739 | { |
||
| 740 | var a = (w -= 1)>>1, b = (h -= 1)>>1, |
||
| 741 | wod = (w&1)+1, hod = (h&1)+1, |
||
| 742 | cx = left+a, cy = top+b, |
||
| 743 | x = 0, y = b, |
||
| 744 | ox = 0, oy = b, |
||
| 745 | aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1, |
||
| 746 | st = (aa2>>1)*(1-(b<<1)) + bb, |
||
| 747 | tt = (bb>>1) - aa2*((b<<1)-1), |
||
| 748 | pxl, dw, dh; |
||
| 749 | if (w+1) while (y > 0) |
||
| 750 | { |
||
| 751 | if (st < 0) |
||
| 752 | { |
||
| 753 | st += bb*((x<<1)+3); |
||
| 754 | tt += (bb<<1)*(++x); |
||
| 755 | } |
||
| 756 | else if (tt < 0) |
||
| 757 | { |
||
| 758 | st += bb*((x<<1)+3) - aa4*(y-1); |
||
| 759 | pxl = cx-x; |
||
| 760 | dw = (x<<1)+wod; |
||
| 761 | tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-3); |
||
| 762 | dh = oy-y; |
||
| 763 | this.mkDiv(pxl, cy-oy, dw, dh); |
||
| 764 | this.mkDiv(pxl, cy+y+hod, dw, dh); |
||
| 765 | ox = x; |
||
| 766 | oy = y; |
||
| 767 | } |
||
| 768 | else |
||
| 769 | { |
||
| 770 | tt -= aa2*((y<<1)-3); |
||
| 771 | st -= aa4*(--y); |
||
| 772 | } |
||
| 773 | } |
||
| 774 | this.mkDiv(cx-a, cy-oy, w+1, (oy<<1)+hod); |
||
| 775 | }; |
||
| 776 | |||
| 777 | |||
| 778 | /* fillPolygon method, implemented by Matthieu Haller. |
||
| 779 | This javascript function is an adaptation of the gdImageFilledPolygon for Walter Zorn lib. |
||
| 780 | C source of GD 1.8.4 found at http://www.boutell.com/gd/ |
||
| 781 | |||
| 782 | THANKS to Kirsten Schulz for the polygon fixes! |
||
| 783 | |||
| 784 | The intersection finding technique of this code could be improved |
||
| 785 | by remembering the previous intertersection, and by using the slope. |
||
| 786 | That could help to adjust intersections to produce a nice |
||
| 787 | interior_extrema. */ |
||
| 788 | this.fillPolygon = function(array_x, array_y) |
||
| 789 | { |
||
| 790 | var i; |
||
| 791 | var y; |
||
| 792 | var miny, maxy; |
||
| 793 | var x1, y1; |
||
| 794 | var x2, y2; |
||
| 795 | var ind1, ind2; |
||
| 796 | var ints; |
||
| 797 | |||
| 798 | var n = array_x.length; |
||
| 799 | |||
| 800 | if (!n) return; |
||
| 801 | |||
| 802 | |||
| 803 | miny = array_y[0]; |
||
| 804 | maxy = array_y[0]; |
||
| 805 | for (i = 1; i < n; i++) |
||
| 806 | { |
||
| 807 | if (array_y[i] < miny) |
||
| 808 | miny = array_y[i]; |
||
| 809 | |||
| 810 | if (array_y[i] > maxy) |
||
| 811 | maxy = array_y[i]; |
||
| 812 | } |
||
| 813 | for (y = miny; y <= maxy; y++) |
||
| 814 | { |
||
| 815 | var polyInts = new Array(); |
||
| 816 | ints = 0; |
||
| 817 | for (i = 0; i < n; i++) |
||
| 818 | { |
||
| 819 | if (!i) |
||
| 820 | { |
||
| 821 | ind1 = n-1; |
||
| 822 | ind2 = 0; |
||
| 823 | } |
||
| 824 | else |
||
| 825 | { |
||
| 826 | ind1 = i-1; |
||
| 827 | ind2 = i; |
||
| 828 | } |
||
| 829 | y1 = array_y[ind1]; |
||
| 830 | y2 = array_y[ind2]; |
||
| 831 | if (y1 < y2) |
||
| 832 | { |
||
| 833 | x1 = array_x[ind1]; |
||
| 834 | x2 = array_x[ind2]; |
||
| 835 | } |
||
| 836 | else if (y1 > y2) |
||
| 837 | { |
||
| 838 | y2 = array_y[ind1]; |
||
| 839 | y1 = array_y[ind2]; |
||
| 840 | x2 = array_x[ind1]; |
||
| 841 | x1 = array_x[ind2]; |
||
| 842 | } |
||
| 843 | else continue; |
||
| 844 | |||
| 845 | // modified 11. 2. 2004 Walter Zorn |
||
| 846 | if ((y >= y1) && (y < y2)) |
||
| 847 | polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1); |
||
| 848 | |||
| 849 | else if ((y == maxy) && (y > y1) && (y <= y2)) |
||
| 850 | polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1); |
||
| 851 | } |
||
| 852 | polyInts.sort(integer_compare); |
||
| 853 | for (i = 0; i < ints; i+=2) |
||
| 854 | this.mkDiv(polyInts[i], y, polyInts[i+1]-polyInts[i]+1, 1); |
||
| 855 | } |
||
| 856 | }; |
||
| 857 | |||
| 858 | |||
| 859 | this.drawString = function(txt, x, y) |
||
| 860 | { |
||
| 861 | this.htm += '<div style="position:absolute;white-space:nowrap;'+ |
||
| 862 | 'left:' + x + 'px;'+ |
||
| 863 | 'top:' + y + 'px;'+ |
||
| 864 | 'font-family:' + this.ftFam + ';'+ |
||
| 865 | 'font-size:' + this.ftSz + ';'+ |
||
| 866 | 'color:' + this.color + ';' + this.ftSty + '">'+ |
||
| 867 | txt + |
||
| 868 | '<\/div>'; |
||
| 869 | }; |
||
| 870 | |||
| 871 | |||
| 872 | /* drawStringRect() added by Rick Blommers. |
||
| 873 | Allows to specify the size of the text rectangle and to align the |
||
| 874 | text both horizontally (e.g. right) and vertically within that rectangle */ |
||
| 875 | this.drawStringRect = function(txt, x, y, width, halign) |
||
| 876 | { |
||
| 877 | this.htm += '<div style="position:absolute;overflow:hidden;'+ |
||
| 878 | 'left:' + x + 'px;'+ |
||
| 879 | 'top:' + y + 'px;'+ |
||
| 880 | 'width:'+width +'px;'+ |
||
| 881 | 'text-align:'+halign+';'+ |
||
| 882 | 'font-family:' + this.ftFam + ';'+ |
||
| 883 | 'font-size:' + this.ftSz + ';'+ |
||
| 884 | 'color:' + this.color + ';' + this.ftSty + '">'+ |
||
| 885 | txt + |
||
| 886 | '<\/div>'; |
||
| 887 | }; |
||
| 888 | |||
| 889 | |||
| 890 | this.drawImage = function(imgSrc, x, y, w, h, a) |
||
| 891 | { |
||
| 892 | this.htm += '<div style="position:absolute;'+ |
||
| 893 | 'left:' + x + 'px;'+ |
||
| 894 | 'top:' + y + 'px;'+ |
||
| 895 | 'width:' + w + 'px;'+ |
||
| 896 | 'height:' + h + 'px;">'+ |
||
| 5818 | bpr | 897 | '<img src="' + imgSrc + '" width="' + w + '" height="' + h + '"' + (a? (' '+a) : '') + '/>'+ |
| 20 | reyssat | 898 | '<\/div>'; |
| 899 | }; |
||
| 900 | |||
| 901 | |||
| 902 | this.clear = function() |
||
| 903 | { |
||
| 904 | this.htm = ""; |
||
| 905 | if (this.cnv) this.cnv.innerHTML = this.defhtm; |
||
| 906 | }; |
||
| 907 | |||
| 908 | |||
| 909 | this.mkOvQds = function(cx, cy, xl, xr, yt, yb, w, h) |
||
| 910 | { |
||
| 911 | this.mkDiv(xr+cx, yt+cy, w, h); |
||
| 912 | this.mkDiv(xr+cx, yb+cy, w, h); |
||
| 913 | this.mkDiv(xl+cx, yb+cy, w, h); |
||
| 914 | this.mkDiv(xl+cx, yt+cy, w, h); |
||
| 915 | }; |
||
| 916 | |||
| 917 | this.setStroke(1); |
||
| 918 | this.setFont('verdana,geneva,helvetica,sans-serif', String.fromCharCode(0x31, 0x32, 0x70, 0x78), Font.PLAIN); |
||
| 919 | this.color = '#000000'; |
||
| 920 | this.htm = ''; |
||
| 921 | this.wnd = wnd || window; |
||
| 922 | |||
| 923 | if (!(jg_ie || jg_dom || jg_ihtm)) chkDHTM(); |
||
| 924 | if (typeof id != 'string' || !id) this.paint = pntDoc; |
||
| 925 | else |
||
| 926 | { |
||
| 927 | this.cnv = document.all? (this.wnd.document.all[id] || null) |
||
| 928 | : document.getElementById? (this.wnd.document.getElementById(id) || null) |
||
| 929 | : null; |
||
| 930 | this.defhtm = (this.cnv && this.cnv.innerHTML)? this.cnv.innerHTML : ''; |
||
| 931 | this.paint = jg_dom? pntCnvDom : jg_ie? pntCnvIe : jg_ihtm? pntCnvIhtm : pntCnv; |
||
| 932 | } |
||
| 933 | |||
| 934 | this.setPrintable(false); |
||
| 935 | } |
||
| 936 | |||
| 937 | |||
| 938 | |||
| 939 | function integer_compare(x,y) |
||
| 940 | { |
||
| 941 | return (x < y) ? -1 : ((x > y)*1); |
||
| 942 | } |
||
| 943 |