From 8aafa82a1455a62698eadf13f181f38021569689 Mon Sep 17 00:00:00 2001 From: olivier <> Date: Fri, 12 Dec 2008 18:16:24 +0000 Subject: [PATCH] add wz_jsgraphics 3.03 --- telemeta/htdocs/js/wz_jsgraphics.js | 1107 +++++++++++++++++++++++++++ 1 file changed, 1107 insertions(+) create mode 100755 telemeta/htdocs/js/wz_jsgraphics.js diff --git a/telemeta/htdocs/js/wz_jsgraphics.js b/telemeta/htdocs/js/wz_jsgraphics.js new file mode 100755 index 00000000..b3d10546 --- /dev/null +++ b/telemeta/htdocs/js/wz_jsgraphics.js @@ -0,0 +1,1107 @@ +/* This notice must be untouched at all times. + +wz_jsgraphics.js v. 3.03 +The latest version is available at +http://www.walterzorn.com +or http://www.devira.com +or http://www.walterzorn.de + +Copyright (c) 2002-2004 Walter Zorn. All rights reserved. +Created 3. 11. 2002 by Walter Zorn (Web: http://www.walterzorn.com ) +Last modified: 28. 1. 2008 + +Performance optimizations for Internet Explorer +by Thomas Frank and John Holdsworth. +fillPolygon method implemented by Matthieu Haller. + +High Performance JavaScript Graphics Library. +Provides methods +- to draw lines, rectangles, ellipses, polygons + with specifiable line thickness, +- to fill rectangles, polygons, ellipses and arcs +- to draw text. +NOTE: Operations, functions and branching have rather been optimized +to efficiency and speed than to shortness of source code. + +LICENSE: LGPL + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License (LGPL) as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA, +or see http://www.gnu.org/copyleft/lesser.html +*/ + + +var jg_ok, jg_ie, jg_fast, jg_dom, jg_moz; + + +function _chkDHTM(x, i) +{ + x = document.body || null; + jg_ie = x && typeof x.insertAdjacentHTML != "undefined" && document.createElement; + jg_dom = (x && !jg_ie && + typeof x.appendChild != "undefined" && + typeof document.createRange != "undefined" && + typeof (i = document.createRange()).setStartBefore != "undefined" && + typeof i.createContextualFragment != "undefined"); + jg_fast = jg_ie && document.all && !window.opera; + jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined"; + jg_ok = !!(jg_ie || jg_dom); +} + +function _pntCnvDom() +{ + var x = this.wnd.document.createRange(); + x.setStartBefore(this.cnv); + x = x.createContextualFragment(jg_fast? this._htmRpc() : this.htm); + if(this.cnv) this.cnv.appendChild(x); + this.htm = ""; +} + +function _pntCnvIe() +{ + if(this.cnv) this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this._htmRpc() : this.htm); + this.htm = ""; +} + +function _pntDoc() +{ + this.wnd.document.write(jg_fast? this._htmRpc() : this.htm); + this.htm = ''; +} + +function _pntN() +{ + ; +} + +function _mkDiv(x, y, w, h) +{ + this.htm += '
<\/div>'; +} + +function _mkDivIe(x, y, w, h) +{ + this.htm += '%%'+this.color+';'+x+';'+y+';'+w+';'+h+';'; +} + +function _mkDivPrt(x, y, w, h) +{ + this.htm += '
<\/div>'; +} + +var _regex = /%%([^;]+);([^;]+);([^;]+);([^;]+);([^;]+);/g; +function _htmRpc() +{ + return this.htm.replace( + _regex, + '
\n'); +} + +function _htmPrtRpc() +{ + return this.htm.replace( + _regex, + '
\n'); +} + +function _mkLin(x1, y1, x2, y2) +{ + if(x1 > x2) + { + var _x2 = x2; + var _y2 = y2; + x2 = x1; + y2 = y1; + x1 = _x2; + y1 = _y2; + } + var dx = x2-x1, dy = Math.abs(y2-y1), + x = x1, y = y1, + yIncr = (y1 > y2)? -1 : 1; + + if(dx >= dy) + { + var pr = dy<<1, + pru = pr - (dx<<1), + p = pr-dx, + ox = x; + while(dx > 0) + {--dx; + ++x; + if(p > 0) + { + this._mkDiv(ox, y, x-ox, 1); + y += yIncr; + p += pru; + ox = x; + } + else p += pr; + } + this._mkDiv(ox, y, x2-ox+1, 1); + } + + else + { + var pr = dx<<1, + pru = pr - (dy<<1), + p = pr-dy, + oy = y; + if(y2 <= y1) + { + while(dy > 0) + {--dy; + if(p > 0) + { + this._mkDiv(x++, y, 1, oy-y+1); + y += yIncr; + p += pru; + oy = y; + } + else + { + y += yIncr; + p += pr; + } + } + this._mkDiv(x2, y2, 1, oy-y2+1); + } + else + { + while(dy > 0) + {--dy; + y += yIncr; + if(p > 0) + { + this._mkDiv(x++, oy, 1, y-oy); + p += pru; + oy = y; + } + else p += pr; + } + this._mkDiv(x2, oy, 1, y2-oy+1); + } + } +} + +function _mkLin2D(x1, y1, x2, y2) +{ + if(x1 > x2) + { + var _x2 = x2; + var _y2 = y2; + x2 = x1; + y2 = y1; + x1 = _x2; + y1 = _y2; + } + var dx = x2-x1, dy = Math.abs(y2-y1), + x = x1, y = y1, + yIncr = (y1 > y2)? -1 : 1; + + var s = this.stroke; + if(dx >= dy) + { + if(dx > 0 && s-3 > 0) + { + var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx; + _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1; + } + else var _s = s; + var ad = Math.ceil(s/2); + + var pr = dy<<1, + pru = pr - (dx<<1), + p = pr-dx, + ox = x; + while(dx > 0) + {--dx; + ++x; + if(p > 0) + { + this._mkDiv(ox, y, x-ox+ad, _s); + y += yIncr; + p += pru; + ox = x; + } + else p += pr; + } + this._mkDiv(ox, y, x2-ox+ad+1, _s); + } + + else + { + if(s-3 > 0) + { + var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy; + _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1; + } + else var _s = s; + var ad = Math.round(s/2); + + var pr = dx<<1, + pru = pr - (dy<<1), + p = pr-dy, + oy = y; + if(y2 <= y1) + { + ++ad; + while(dy > 0) + {--dy; + if(p > 0) + { + this._mkDiv(x++, y, _s, oy-y+ad); + y += yIncr; + p += pru; + oy = y; + } + else + { + y += yIncr; + p += pr; + } + } + this._mkDiv(x2, y2, _s, oy-y2+ad); + } + else + { + while(dy > 0) + {--dy; + y += yIncr; + if(p > 0) + { + this._mkDiv(x++, oy, _s, y-oy+ad); + p += pru; + oy = y; + } + else p += pr; + } + this._mkDiv(x2, oy, _s, y2-oy+ad+1); + } + } +} + +function _mkLinDott(x1, y1, x2, y2) +{ + if(x1 > x2) + { + var _x2 = x2; + var _y2 = y2; + x2 = x1; + y2 = y1; + x1 = _x2; + y1 = _y2; + } + var dx = x2-x1, dy = Math.abs(y2-y1), + x = x1, y = y1, + yIncr = (y1 > y2)? -1 : 1, + drw = true; + if(dx >= dy) + { + var pr = dy<<1, + pru = pr - (dx<<1), + p = pr-dx; + while(dx > 0) + {--dx; + if(drw) this._mkDiv(x, y, 1, 1); + drw = !drw; + if(p > 0) + { + y += yIncr; + p += pru; + } + else p += pr; + ++x; + } + } + else + { + var pr = dx<<1, + pru = pr - (dy<<1), + p = pr-dy; + while(dy > 0) + {--dy; + if(drw) this._mkDiv(x, y, 1, 1); + drw = !drw; + y += yIncr; + if(p > 0) + { + ++x; + p += pru; + } + else p += pr; + } + } + if(drw) this._mkDiv(x, y, 1, 1); +} + +function _mkOv(left, top, width, height) +{ + var a = (++width)>>1, b = (++height)>>1, + wod = width&1, hod = height&1, + cx = left+a, cy = top+b, + x = 0, y = b, + ox = 0, oy = b, + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1, + st = (aa2>>1)*(1-(b<<1)) + bb2, + tt = (bb2>>1) - aa2*((b<<1)-1), + w, h; + while(y > 0) + { + if(st < 0) + { + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) + { + st += bb2*((x<<1)+3) - aa4*(y-1); + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + w = x-ox; + h = oy-y; + if((w&2) && (h&2)) + { + this._mkOvQds(cx, cy, x-2, y+2, 1, 1, wod, hod); + this._mkOvQds(cx, cy, x-1, y+1, 1, 1, wod, hod); + } + else this._mkOvQds(cx, cy, x-1, oy, w, h, wod, hod); + ox = x; + oy = y; + } + else + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + } + } + w = a-ox+1; + h = (oy<<1)+hod; + y = cy-oy; + this._mkDiv(cx-a, y, w, h); + this._mkDiv(cx+ox+wod-1, y, w, h); +} + +function _mkOv2D(left, top, width, height) +{ + var s = this.stroke; + width += s+1; + height += s+1; + var a = width>>1, b = height>>1, + wod = width&1, hod = height&1, + cx = left+a, cy = top+b, + x = 0, y = b, + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1, + st = (aa2>>1)*(1-(b<<1)) + bb2, + tt = (bb2>>1) - aa2*((b<<1)-1); + + if(s-4 < 0 && (!(s-2) || width-51 > 0 && height-51 > 0)) + { + var ox = 0, oy = b, + w, h, + pxw; + while(y > 0) + { + if(st < 0) + { + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) + { + st += bb2*((x<<1)+3) - aa4*(y-1); + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + w = x-ox; + h = oy-y; + + if(w-1) + { + pxw = w+1+(s&1); + h = s; + } + else if(h-1) + { + pxw = s; + h += 1+(s&1); + } + else pxw = h = s; + this._mkOvQds(cx, cy, x-1, oy, pxw, h, wod, hod); + ox = x; + oy = y; + } + else + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + } + } + this._mkDiv(cx-a, cy-oy, s, (oy<<1)+hod); + this._mkDiv(cx+a+wod-s, cy-oy, s, (oy<<1)+hod); + } + + else + { + var _a = (width-(s<<1))>>1, + _b = (height-(s<<1))>>1, + _x = 0, _y = _b, + _aa2 = (_a*_a)<<1, _aa4 = _aa2<<1, _bb2 = (_b*_b)<<1, _bb4 = _bb2<<1, + _st = (_aa2>>1)*(1-(_b<<1)) + _bb2, + _tt = (_bb2>>1) - _aa2*((_b<<1)-1), + + pxl = new Array(), + pxt = new Array(), + _pxb = new Array(); + pxl[0] = 0; + pxt[0] = b; + _pxb[0] = _b-1; + while(y > 0) + { + if(st < 0) + { + pxl[pxl.length] = x; + pxt[pxt.length] = y; + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) + { + pxl[pxl.length] = x; + st += bb2*((x<<1)+3) - aa4*(y-1); + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + pxt[pxt.length] = y; + } + else + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + } + + if(_y > 0) + { + if(_st < 0) + { + _st += _bb2*((_x<<1)+3); + _tt += _bb4*(++_x); + _pxb[_pxb.length] = _y-1; + } + else if(_tt < 0) + { + _st += _bb2*((_x<<1)+3) - _aa4*(_y-1); + _tt += _bb4*(++_x) - _aa2*(((_y--)<<1)-3); + _pxb[_pxb.length] = _y-1; + } + else + { + _tt -= _aa2*((_y<<1)-3); + _st -= _aa4*(--_y); + _pxb[_pxb.length-1]--; + } + } + } + + var ox = -wod, oy = b, + _oy = _pxb[0], + l = pxl.length, + w, h; + for(var i = 0; i < l; i++) + { + if(typeof _pxb[i] != "undefined") + { + if(_pxb[i] < _oy || pxt[i] < oy) + { + x = pxl[i]; + this._mkOvQds(cx, cy, x, oy, x-ox, oy-_oy, wod, hod); + ox = x; + oy = pxt[i]; + _oy = _pxb[i]; + } + } + else + { + x = pxl[i]; + this._mkDiv(cx-x, cy-oy, 1, (oy<<1)+hod); + this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); + ox = x; + oy = pxt[i]; + } + } + this._mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod); + this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); + } +} + +function _mkOvDott(left, top, width, height) +{ + var a = (++width)>>1, b = (++height)>>1, + wod = width&1, hod = height&1, hodu = hod^1, + cx = left+a, cy = top+b, + x = 0, y = b, + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1, + st = (aa2>>1)*(1-(b<<1)) + bb2, + tt = (bb2>>1) - aa2*((b<<1)-1), + drw = true; + while(y > 0) + { + if(st < 0) + { + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) + { + st += bb2*((x<<1)+3) - aa4*(y-1); + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + } + else + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + } + if(drw && y >= hodu) this._mkOvQds(cx, cy, x, y, 1, 1, wod, hod); + drw = !drw; + } +} + +function _mkRect(x, y, w, h) +{ + var s = this.stroke; + this._mkDiv(x, y, w, s); + this._mkDiv(x+w, y, s, h); + this._mkDiv(x, y+h, w+s, s); + this._mkDiv(x, y+s, s, h-s); +} + +function _mkRectDott(x, y, w, h) +{ + this.drawLine(x, y, x+w, y); + this.drawLine(x+w, y, x+w, y+h); + this.drawLine(x, y+h, x+w, y+h); + this.drawLine(x, y, x, y+h); +} + +function jsgFont() +{ + this.PLAIN = 'font-weight:normal;'; + this.BOLD = 'font-weight:bold;'; + this.ITALIC = 'font-style:italic;'; + this.ITALIC_BOLD = this.ITALIC + this.BOLD; + this.BOLD_ITALIC = this.ITALIC_BOLD; +} +var Font = new jsgFont(); + +function jsgStroke() +{ + this.DOTTED = -1; +} +var Stroke = new jsgStroke(); + +function jsGraphics(cnv, wnd) +{ + this.setColor = function(x) + { + this.color = x.toLowerCase(); + }; + + this.setStroke = function(x) + { + this.stroke = x; + if(!(x+1)) + { + this.drawLine = _mkLinDott; + this._mkOv = _mkOvDott; + this.drawRect = _mkRectDott; + } + else if(x-1 > 0) + { + this.drawLine = _mkLin2D; + this._mkOv = _mkOv2D; + this.drawRect = _mkRect; + } + else + { + this.drawLine = _mkLin; + this._mkOv = _mkOv; + this.drawRect = _mkRect; + } + }; + + this.setPrintable = function(arg) + { + this.printable = arg; + if(jg_fast) + { + this._mkDiv = _mkDivIe; + this._htmRpc = arg? _htmPrtRpc : _htmRpc; + } + else this._mkDiv = arg? _mkDivPrt : _mkDiv; + }; + + this.setFont = function(fam, sz, sty) + { + this.ftFam = fam; + this.ftSz = sz; + this.ftSty = sty || Font.PLAIN; + }; + + this.drawPolyline = this.drawPolyLine = function(x, y) + { + for (var i=x.length - 1; i;) + {--i; + this.drawLine(x[i], y[i], x[i+1], y[i+1]); + } + }; + + this.fillRect = function(x, y, w, h) + { + this._mkDiv(x, y, w, h); + }; + + this.drawPolygon = function(x, y) + { + this.drawPolyline(x, y); + this.drawLine(x[x.length-1], y[x.length-1], x[0], y[0]); + }; + + this.drawEllipse = this.drawOval = function(x, y, w, h) + { + this._mkOv(x, y, w, h); + }; + + this.fillEllipse = this.fillOval = function(left, top, w, h) + { + var a = w>>1, b = h>>1, + wod = w&1, hod = h&1, + cx = left+a, cy = top+b, + x = 0, y = b, oy = b, + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1, + st = (aa2>>1)*(1-(b<<1)) + bb2, + tt = (bb2>>1) - aa2*((b<<1)-1), + xl, dw, dh; + if(w) while(y > 0) + { + if(st < 0) + { + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) + { + st += bb2*((x<<1)+3) - aa4*(y-1); + xl = cx-x; + dw = (x<<1)+wod; + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + dh = oy-y; + this._mkDiv(xl, cy-oy, dw, dh); + this._mkDiv(xl, cy+y+hod, dw, dh); + oy = y; + } + else + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + } + } + this._mkDiv(cx-a, cy-oy, w, (oy<<1)+hod); + }; + + this.fillArc = function(iL, iT, iW, iH, fAngA, fAngZ) + { + var a = iW>>1, b = iH>>1, + iOdds = (iW&1) | ((iH&1) << 16), + cx = iL+a, cy = iT+b, + x = 0, y = b, ox = x, oy = y, + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1, + st = (aa2>>1)*(1-(b<<1)) + bb2, + tt = (bb2>>1) - aa2*((b<<1)-1), + // Vars for radial boundary lines + xEndA, yEndA, xEndZ, yEndZ, + iSects = (1 << (Math.floor((fAngA %= 360.0)/180.0) << 3)) + | (2 << (Math.floor((fAngZ %= 360.0)/180.0) << 3)) + | ((fAngA >= fAngZ) << 16), + aBndA = new Array(b+1), aBndZ = new Array(b+1); + + // Set up radial boundary lines + fAngA *= Math.PI/180.0; + fAngZ *= Math.PI/180.0; + xEndA = cx+Math.round(a*Math.cos(fAngA)); + yEndA = cy+Math.round(-b*Math.sin(fAngA)); + _mkLinVirt(aBndA, cx, cy, xEndA, yEndA); + xEndZ = cx+Math.round(a*Math.cos(fAngZ)); + yEndZ = cy+Math.round(-b*Math.sin(fAngZ)); + _mkLinVirt(aBndZ, cx, cy, xEndZ, yEndZ); + + while(y > 0) + { + if(st < 0) // Advance x + { + st += bb2*((x<<1)+3); + tt += bb4*(++x); + } + else if(tt < 0) // Advance x and y + { + st += bb2*((x<<1)+3) - aa4*(y-1); + ox = x; + tt += bb4*(++x) - aa2*(((y--)<<1)-3); + this._mkArcDiv(ox, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects); + oy = y; + } + else // Advance y + { + tt -= aa2*((y<<1)-3); + st -= aa4*(--y); + if(y && (aBndA[y] != aBndA[y-1] || aBndZ[y] != aBndZ[y-1])) + { + this._mkArcDiv(x, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects); + ox = x; + oy = y; + } + } + } + this._mkArcDiv(x, 0, oy, cx, cy, iOdds, aBndA, aBndZ, iSects); + if(iOdds >> 16) // Odd height + { + if(iSects >> 16) // Start-angle > end-angle + { + var xl = (yEndA <= cy || yEndZ > cy)? (cx - x) : cx; + this._mkDiv(xl, cy, x + cx - xl + (iOdds & 0xffff), 1); + } + else if((iSects & 0x01) && yEndZ > cy) + this._mkDiv(cx - x, cy, x, 1); + } + }; + +/* fillPolygon method, implemented by Matthieu Haller. +This javascript function is an adaptation of the gdImageFilledPolygon for Walter Zorn lib. +C source of GD 1.8.4 found at http://www.boutell.com/gd/ + +THANKS to Kirsten Schulz for the polygon fixes! + +The intersection finding technique of this code could be improved +by remembering the previous intertersection, and by using the slope. +That could help to adjust intersections to produce a nice +interior_extrema. */ + this.fillPolygon = function(array_x, array_y) + { + var i; + var y; + var miny, maxy; + var x1, y1; + var x2, y2; + var ind1, ind2; + var ints; + + var n = array_x.length; + if(!n) return; + + miny = array_y[0]; + maxy = array_y[0]; + for(i = 1; i < n; i++) + { + if(array_y[i] < miny) + miny = array_y[i]; + + if(array_y[i] > maxy) + maxy = array_y[i]; + } + for(y = miny; y <= maxy; y++) + { + var polyInts = new Array(); + ints = 0; + for(i = 0; i < n; i++) + { + if(!i) + { + ind1 = n-1; + ind2 = 0; + } + else + { + ind1 = i-1; + ind2 = i; + } + y1 = array_y[ind1]; + y2 = array_y[ind2]; + if(y1 < y2) + { + x1 = array_x[ind1]; + x2 = array_x[ind2]; + } + else if(y1 > y2) + { + y2 = array_y[ind1]; + y1 = array_y[ind2]; + x2 = array_x[ind1]; + x1 = array_x[ind2]; + } + else continue; + + // Modified 11. 2. 2004 Walter Zorn + if((y >= y1) && (y < y2)) + polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1); + + else if((y == maxy) && (y > y1) && (y <= y2)) + polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1); + } + polyInts.sort(_CompInt); + for(i = 0; i < ints; i+=2) + this._mkDiv(polyInts[i], y, polyInts[i+1]-polyInts[i]+1, 1); + } + }; + + this.drawString = function(txt, x, y) + { + this.htm += '
'+ + txt + + '<\/div>'; + }; + +/* drawStringRect() added by Rick Blommers. +Allows to specify the size of the text rectangle and to align the +text both horizontally (e.g. right) and vertically within that rectangle */ + this.drawStringRect = function(txt, x, y, width, halign) + { + this.htm += '
'+ + txt + + '<\/div>'; + }; + + this.drawImage = function(imgSrc, x, y, w, h, a) + { + this.htm += '
'+ + ''+ + '<\/div>'; + }; + + this.clear = function() + { + this.htm = ""; + if(this.cnv) this.cnv.innerHTML = ""; + }; + + this._mkOvQds = function(cx, cy, x, y, w, h, wod, hod) + { + var xl = cx - x, xr = cx + x + wod - w, yt = cy - y, yb = cy + y + hod - h; + if(xr > xl+w) + { + this._mkDiv(xr, yt, w, h); + this._mkDiv(xr, yb, w, h); + } + else + w = xr - xl + w; + this._mkDiv(xl, yt, w, h); + this._mkDiv(xl, yb, w, h); + }; + + this._mkArcDiv = function(x, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects) + { + var xrDef = cx + x + (iOdds & 0xffff), y2, h = oy - y, xl, xr, w; + + if(!h) h = 1; + x = cx - x; + + if(iSects & 0xff0000) // Start-angle > end-angle + { + y2 = cy - y - h; + if(iSects & 0x00ff) + { + if(iSects & 0x02) + { + xl = Math.max(x, aBndZ[y]); + w = xrDef - xl; + if(w > 0) this._mkDiv(xl, y2, w, h); + } + if(iSects & 0x01) + { + xr = Math.min(xrDef, aBndA[y]); + w = xr - x; + if(w > 0) this._mkDiv(x, y2, w, h); + } + } + else + this._mkDiv(x, y2, xrDef - x, h); + y2 = cy + y + (iOdds >> 16); + if(iSects & 0xff00) + { + if(iSects & 0x0100) + { + xl = Math.max(x, aBndA[y]); + w = xrDef - xl; + if(w > 0) this._mkDiv(xl, y2, w, h); + } + if(iSects & 0x0200) + { + xr = Math.min(xrDef, aBndZ[y]); + w = xr - x; + if(w > 0) this._mkDiv(x, y2, w, h); + } + } + else + this._mkDiv(x, y2, xrDef - x, h); + } + else + { + if(iSects & 0x00ff) + { + if(iSects & 0x02) + xl = Math.max(x, aBndZ[y]); + else + xl = x; + if(iSects & 0x01) + xr = Math.min(xrDef, aBndA[y]); + else + xr = xrDef; + y2 = cy - y - h; + w = xr - xl; + if(w > 0) this._mkDiv(xl, y2, w, h); + } + if(iSects & 0xff00) + { + if(iSects & 0x0100) + xl = Math.max(x, aBndA[y]); + else + xl = x; + if(iSects & 0x0200) + xr = Math.min(xrDef, aBndZ[y]); + else + xr = xrDef; + y2 = cy + y + (iOdds >> 16); + w = xr - xl; + if(w > 0) this._mkDiv(xl, y2, w, h); + } + } + }; + + this.setStroke(1); + this.setFont("verdana,geneva,helvetica,sans-serif", "12px", Font.PLAIN); + this.color = "#000000"; + this.htm = ""; + this.wnd = wnd || window; + + if(!jg_ok) _chkDHTM(); + if(jg_ok) + { + if(cnv) + { + if(typeof(cnv) == "string") + this.cont = document.all? (this.wnd.document.all[cnv] || null) + : document.getElementById? (this.wnd.document.getElementById(cnv) || null) + : null; + else if(cnv == window.document) + this.cont = document.getElementsByTagName("body")[0]; + // If cnv is a direct reference to a canvas DOM node + // (option suggested by Andreas Luleich) + else this.cont = cnv; + // Create new canvas inside container DIV. Thus the drawing and clearing + // methods won't interfere with the container's inner html. + // Solution suggested by Vladimir. + this.cnv = this.wnd.document.createElement("div"); + this.cnv.style.fontSize=0; + this.cont.appendChild(this.cnv); + this.paint = jg_dom? _pntCnvDom : _pntCnvIe; + } + else + this.paint = _pntDoc; + } + else + this.paint = _pntN; + + this.setPrintable(false); +} + +function _mkLinVirt(aLin, x1, y1, x2, y2) +{ + var dx = Math.abs(x2-x1), dy = Math.abs(y2-y1), + x = x1, y = y1, + xIncr = (x1 > x2)? -1 : 1, + yIncr = (y1 > y2)? -1 : 1, + p, + i = 0; + if(dx >= dy) + { + var pr = dy<<1, + pru = pr - (dx<<1); + p = pr-dx; + while(dx > 0) + {--dx; + if(p > 0) // Increment y + { + aLin[i++] = x; + y += yIncr; + p += pru; + } + else p += pr; + x += xIncr; + } + } + else + { + var pr = dx<<1, + pru = pr - (dy<<1); + p = pr-dy; + while(dy > 0) + {--dy; + y += yIncr; + aLin[i++] = x; + if(p > 0) // Increment x + { + x += xIncr; + p += pru; + } + else p += pr; + } + } + for(var len = aLin.length, i = len-i; i;) + aLin[len-(i--)] = x; +}; + +function _CompInt(x, y) +{ + return(x - y); +} + -- 2.39.5