wz_jsgraphics.js

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            }
            else this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, oy-h+hod, w, h);
            ox = x;
            oy = y;
        }
        else
        {
            tt -= aa*((y<<1)-0x3);
            st -= (aa<<1)*(--y);
        }
    }
    this.mkDiv(cx-a, cy-oy, a-ox+1, (oy<<1)+hod);
    this.mkDiv(cx+ox+wod, cy-oy, a-ox+1, (oy<<1)+hod);
}





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)+1,
    cx = left+a, cy = top+b,
    x = 0, y = b,
    aa = (a*a)<<1, bb = (b*b)<<1,
    st = (aa>>1)*(1-(b<<1)) + bb,
    tt = (bb>>1) - aa*((b<<1)-1);


    if (s-0x4 < 0 && (!(s-0x2) || width-0x33 > 0 && height-0x33 > 0))
    {
        var ox = 0, oy = b,
        w, h,
        pxl, pxr, pxt, pxb, pxw;
        while (y > 0)
        {
            if (st < 0)
            {
                st += bb*((x<<1)+0x3);
                tt += (bb<<1)*(++x);
            }
            else if (tt < 0)
            {
                st += bb*((x<<1)+0x3) - (aa<<1)*(y-1);
                tt += (bb<<1)*(++x) - aa*(((y--)<<1)-0x3);
                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, ox-pxw+w+wod, -oy, -h+oy+hod, pxw, h);
                ox = x;
                oy = y;
            }
            else
            {
                tt -= aa*((y<<1)-0x3);
                st -= (aa<<1)*(--y);
            }
        }
        this.mkDiv(cx-a, cy-oy, s, (oy<<1)+hod);
        this.mkDiv(cx+a+wod-s+1, cy-oy, s, (oy<<1)+hod);
    }


    else
    {
        var _a = (width-((s-1)<<1))>>1,
        _b = (height-((s-1)<<1))>>1,
        _x = 0, _y = _b,
        _aa = (_a*_a)<<1, _bb = (_b*_b)<<1,
        _st = (_aa>>1)*(1-(_b<<1)) + _bb,
        _tt = (_bb>>1) - _aa*((_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)
            {
                st += bb*((x<<1)+0x3);
                tt += (bb<<1)*(++x);
                pxl[pxl.length] = x;
                pxt[pxt.length] = y;
            }
            else if (tt < 0)
            {
                st += bb*((x<<1)+0x3) - (aa<<1)*(y-1);
                tt += (bb<<1)*(++x) - aa*(((y--)<<1)-0x3);
                pxl[pxl.length] = x;
                pxt[pxt.length] = y;
            }
            else
            {
                tt -= aa*((y<<1)-0x3);
                st -= (aa<<1)*(--y);
            }

            if (_y > 0)
            {
                if (_st < 0)
                {
                    _st += _bb*((_x<<1)+0x3);
                    _tt += (_bb<<1)*(++_x);
                    _pxb[_pxb.length] = _y-1;
                }
                else if (_tt < 0)
                {
                    _st += _bb*((_x<<1)+0x3) - (_aa<<1)*(_y-1);
                    _tt += (_bb<<1)*(++_x) - _aa*(((_y--)<<1)-0x3);
                    _pxb[_pxb.length] = _y-1;
                }
                else
                {
                    _tt -= _aa*((_y<<1)-0x3);
                    _st -= (_aa<<1)*(--_y);
                    _pxb[_pxb.length-1]--;
                }
            }
        }

        var ox = 0, 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+1, ox+wod, -oy, _oy+hod, x-ox, oy-_oy);
                    ox = x;
                    oy = pxt[i];
                    _oy = _pxb[i];
                }
            }
            else
            {
                x = pxl[i];
                this.mkDiv(cx-x+1, 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,
    cx = left+a, cy = top+b,
    x = 0, y = b,
    aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1,
    st = (aa2>>1)*(1-(b<<1)) + bb,
    tt = (bb>>1) - aa2*((b<<1)-1),
    drw = true;
    while (y > 0)
    {
        if (st < 0)
        {
            st += bb*((x<<1)+0x3);
            tt += (bb<<1)*(++x);
        }
        else if (tt < 0)
        {
            st += bb*((x<<1)+0x3) - aa4*(y-1);
            tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-0x3);
        }
        else
        {
            tt -= aa2*((y<<1)-0x3);
            st -= aa4*(--y);
        }
        if (drw) this.mkOvQds(cx, cy, -x, x+wod, -y, y+hod, 1, 1);
        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(id, wnd)
{
    this.setColor = new Function('arg', 'this.color = arg;');


    this.getColor = new Function('return this.color');

    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;
        this.mkDiv = jg_n4? mkLyr : arg? mkDivPrint : 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, s)
    {
        var i = x.length-1; while (i >= 0)
            this.drawLine(x[i], y[i], x[--i], y[i]);
    };



    this.fillRect = function(x, y, w, h)
    {
        this.mkDiv(x, y, w, h);
    };


    this.fillRectPattern = function(x, y, w, h, url)
    {
        this.htm += '<div style="position:absolute;'+
            'left:' + x + 'px;'+
            'top:' + y + 'px;'+
            'width:' + w + 'px;'+
            'height:' + h + 'px;'+
            'clip:rect(0,'+w+'px,'+h+'px,0);'+
            'overflow:hidden;'+
            //'background-color:' + this.color + ';'+
            "background-image: url('" + url + "');"+
            "layer-background-image: url('" + url + "');"+
            'z-index:100;"><\/div>';
        //alert(this.htm);
    }

    this.drawHandle = function(x, y, w, h, cursor)
    {
        
        this.htm += '<div style="position:absolute;'+
        'left:' + x + 'px;'+
        'top:' + y + 'px;'+
        'width:' + w + 'px;'+
        'height:' + h + 'px;'+
        'clip:rect(0,'+w+'px,'+h+'px,0);'+
        'padding: 2px;overflow:hidden;'+
        "cursor: '" + cursor + "';"+
        '" class="handleBox" id="' + cursor + '" ><\/div>';
    }

    this.drawHandleBox = function(x, y, w, h, cursor)
    {
        
        this.htm += '<div style="position:absolute;'+
        'left:' + x + 'px;'+
        'top:' + y + 'px;'+
        'width:' + w + 'px;'+
        'height:' + h + 'px;'+
        'clip:rect(0,'+(w+2)+'px,'+(h+2)+'px,0);'+
        'overflow:hidden; border: solid 1px '+ this.color+';'+
        "cursor: '" + cursor + "';"+
        '" class="handleBox" id="' + cursor + '" ><\/div>';

        
    }

    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)>>1, b = (h -= 1)>>1,
        wod = (w&1)+1, hod = (h&1)+1,
        cx = left+a, cy = top+b,
        x = 0, y = b,
        ox = 0, oy = b,
        aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1,
        st = (aa2>>1)*(1-(b<<1)) + bb,
        tt = (bb>>1) - aa2*((b<<1)-1),
        pxl, dw, dh;
        if (w+1) while (y > 0)
        {
            if (st < 0)
            {
                st += bb*((x<<1)+0x3);
                tt += (bb<<1)*(++x);
            }
            else if (tt < 0)
            {
                st += bb*((x<<1)+0x3) - aa4*(y-1);
                pxl = cx-x;
                dw = (x<<1)+wod;
                tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-0x3);
                dh = oy-y;
                this.mkDiv(pxl, cy-oy, dw, dh);
                this.mkDiv(pxl, cy+oy-dh+hod, dw, dh);
                ox = x;
                oy = y;
            }
            else
            {
                tt -= aa2*((y<<1)-0x3);
                st -= aa4*(--y);
            }
        }
        this.mkDiv(cx-a, cy-oy, w+1, (oy<<1)+hod);
    };



    this.drawString = mkLbl;



    this.clear = function()
    {
        this.htm = "";
        if (this.cnv) this.cnv.innerHTML = this.defhtm;
        
    };



    this.mkOvQds = function(cx, cy, xl, xr, yt, yb, w, h)
    {
        this.mkDiv(xr+cx, yt+cy, w, h);
        this.mkDiv(xr+cx, yb+cy, w, h);
        this.mkDiv(xl+cx, yb+cy, w, h);
        this.mkDiv(xl+cx, yt+cy, w, h);
    };


    this.setStroke(1);
    this.setPrintable(false);
    this.setFont('verdana,geneva,helvetica,sans-serif', String.fromCharCode(0x31, 0x32, 0x70, 0x78), Font.PLAIN);
    this.color = '#000000';
    this.htm = '';
    this.wnd = wnd || window;


    if (!(jg_ie || jg_dom || jg_ihtm)) chkDHTM();
    if (typeof id != 'string' || !id) this.paint = pntDoc;
    else
    {
        this.cnv = document.all? (this.wnd.document.all[id] || null)
            : document.getElementById? (this.wnd.document.getElementById(id) || null)
            : null;
        this.defhtm = (this.cnv && this.cnv.innerHTML)? this.cnv.innerHTML : '';
        this.paint = jg_dom? pntCnvDom : jg_ie? pntCnvIe : jg_ihtm? pntCnvIhtm : pntCnv;
    }
}