//\/////

//\  overLIB Speech Bubble Plugin

//\

//\  You may not remove or change this notice.

//\  Copyright Erik Bosrup 1998-2003. All rights reserved.

//\  Contributors are listed on the homepage.

//\  See http://www.bosrup.com/web/overlib/ for details.

//\/////

////////

// PRE-INIT

// Ignore these lines, configuration is below.

////////

if (typeof olInfo == 'undefined' || typeof olInfo.meets == 'undefined' || !olInfo.meets(4.14)) alert('overLIB 4.14 or later is required for the Speech Bubble Plugin.');

else {

registerCommands('bubble,bubbletype,adjbubble');

var imgWidth=[250,330,144,202,200];						    // image width in pixels

var imgHeight=[150,160,190,221,66];							  // image height in pixels

var contentWidth=[200,250,130,184,190];						// image content width in pixels

var contentHeight=[80,85,150,176,46];						  // image content height in pixels

var padLeft=[30,40,7,9,5];										  // X displacement of content from image upper left corner

var padTop=[0,0,0,0,0];										  // Y displacement of content from image upper left corner

var arwTipX=[180,50,51,9,19];                    // x location of tip from image upper left corner

var arwTipY=[148,5,180,221,64];                  // y location of tip from image upper left corner

////////

// DEFAULT CONFIGURATION

// Settings you want everywhere are set here. All of this can also be

// changed on your html page or through an overLIB call.

////////

if (typeof ol_bubble=='undefined') var ol_bubble=0;

if (typeof ol_bubbletype=='undefined') var ol_bubbletype='';

if (typeof ol_adjbubble=='undefined') var ol_adjbubble=0;

var olBId, olBContentWd=contentWidth;

////////

// END OF CONFIGURATION

// Don't change anything below this line, all configuration is above.

////////

////////

// INIT

////////

// Runtime variables init. Don't change for config!

var o3_bubble=0;

var o3_bubbletype='';

var o3_adjbubble=0;

////////

// PLUGIN FUNCTIONS

////////

function setBubbleVariables() {

	o3_bubble=ol_bubble;

	o3_bubbletype=ol_bubbletype;

	o3_adjbubble=ol_adjbubble;

}

// Parses Speech Bubble commands

function parseBubbleExtras(pf,i,ar) {

	var k=i;

	if (k < ar.length) {

		if (ar[k]==BUBBLE) { eval(pf +'bubble=('+pf+'bubble==0) ? 1 : 0'); return k; }

		if (ar[k]==BUBBLETYPE) { eval(pf+'bubbletype="'+ar[++k]+'"'); return k; }

		if (ar[k]==ADJBUBBLE) { eval(pf +'adjbubble=('+pf+'adjbubble==0) ? 1 : 0'); return k; }

	}

	return -1;

}

////////

// CHECKS FOR BUBBLE EFFECT

////////

function chkForBubbleEffect() {

	if(o3_bubble) {

		o3_bubbletype=(o3_bubbletype) ? o3_bubbletype : 'flower';

		for (var i=0; i<olBTypes.length; i++) {

			if(olBTypes[i]==o3_bubbletype) {

				olBId=i;

				break;

			}

		}

		// disable inappropriate parameters

		o3_bgcolor=o3_fgcolor='';

		o3_border=0;

		if(o3_fgbackground||o3_bgbackground) o3_fgbackground=o3_bgbackground='';

		if(o3_cap) o3_cap='';

		if(o3_sticky) opt_NOCLOSE();

		if(o3_fullhtml) o3_fullhtml=0;

		if(o3_fixx>0||o3_fixy>0) o3_fixx=o3_fixy=-1;

		if(o3_relx||o3_rely) o3_relx=o3_rely=null;

		if(typeof o3_shadow!='undefined'&&o3_shadow) o3_shadow=0;

		if(o3_bubbletype!='roundcorners') {

			o3_width=olBContentWd[olBId];

			if(o3_hpos==CENTER||o3_hpos==LEFT) o3_hpos=RIGHT;

			if(o3_vpos==ABOVE) o3_vpos=BELOW;

			if(o3_vauto) o3_vauto=0;

			if(o3_hauto) o3_hauto=0;

			if(o3_wrap) o3_wrap=0;

		}

	}

	return true;

}

////////

// BUBBLE EFFECT SUPPORTING ROUTINES

////////

function registerImages(imgStr,path) {

	if(typeof imgStr!='string') return;

	path=(path&&typeof path=='string') ? path : 'images';

	if (path.charAt(path.length-1)=='/') path=path.substring(0,path.length-1);

	if(typeof olBTypes=='undefined') olBTypes=imgStr.split(',');

	if(typeof olBubbleImg=='undefined') {

		olBubbleImg=new Array();

		for (var i=0; i<olBTypes.length; i++) {

			if(olBTypes[i]=='roundcorners') {

				olBubbleImg[i]=new Array();

				var o=olBubbleImg[i];

				o[0]=new Image();

				o[0].src=path+'/cornerTL.gif';

				o[1]=new Image();

				o[1].src=path+'/edgeT.gif';

				o[2]=new Image();

				o[2].src=path+'/cornerTR.gif';

				o[3]=new Image();

				o[3].src=path+'/edgeL.gif';

				o[4]=new Image();

				o[4].src=path+'/edgeR.gif';

				o[5]=new Image();

				o[5].src=path+'/cornerBL.gif';

				o[6]=new Image();

				o[6].src=path+'/edgeB.gif';

				o[7]=new Image();

				o[7].src=path+'/cornerBR.gif';

			} else {

				olBubbleImg[i]=new Image();

				olBubbleImg[i].src=path+'/'+olBTypes[i]+'.gif';

			}

		}

	}

}

function generateBubble(content) {

	if(!o3_bubble) return;

	if(o3_bubbletype=='roundcorners') return doRoundCorners(content);

	var ar,X,Y,fc=1.0,txt,sY,bHtDiff, bPadDiff=0,zIdx=0;

	var bTopPad=padTop,bLeftPad=padLeft;

	var bContentHt=contentHeight, bHt=imgHeight;

	var bWd=imgWidth, bArwTipX=arwTipX, bArwTipY=arwTipY;

//

	bHtDiff=fc*bContentHt[olBId]-(olNs4 ? over.clip.height : over.offsetHeight);

	if (o3_adjbubble) {

		fc=resizeBubble(bHtDiff, 0.5, fc);

		ar=getHeightDiff(fc);

		bHtDiff=ar[0];

		content=ar[1];

	}

	if(bHtDiff>0) bPadDiff=parseInt(0.5*bHtDiff);

	Y=(bHtDiff<0) ? fc*bTopPad[olBId] : fc*bTopPad[olBId]+bPadDiff;

	X=fc*bLeftPad[olBId];

	Y=Math.round(Y);

	X=Math.round(X);

//

	txt=(olNs4) ? '<div id="bLayer">' : ((olIe55&&olHideForm) ? backDropSource(Math.round(fc*bWd[olBId]),Math.round((bHtDiff<0 ? fc*bHt[olBId]-bHtDiff : fc*bHt[olBId])),zIdx++) : '') + '<div id="bLayer" style="position: absolute; top:0; left:0; width: '+ Math.round(fc*bWd[olBId]) +'px; z-index: '+(zIdx++)+';">';

	txt += '<img src="'+olBubbleImg[olBId].src+'" width="'+Math.round(fc*bWd[olBId])+'" height="'+Math.round((bHtDiff<0 ? fc*bHt[olBId]-bHtDiff : fc*bHt[olBId]))+'" /></div>';

	txt += (olNs4 ? '<div id="bContent">' : '<div id="bContent" style="position: absolute; top:'+Y+'px; left:'+X+'px; width: '+ Math.round(fc*olBContentWd[olBId])+'px; z-index: '+(zIdx++)+';">')+content+'</div>'

//

	layerWrite(txt);

	if(olNs4) {

		var imgLyr=over.document.layers['bLayer'];

		var cLyr=over.document.layers['bContent'];

		imgLyr.zIndex=0;

		cLyr.zIndex=1;

		cLyr.top=Y;

		cLyr.left=X;

	}

	// Set popup's new width and height values here so they are available in placeLayer()

	o3_width=Math.round(fc*bWd[olBId]);

	o3_aboveheight=Math.round(fc*bHt[olBId]);

	if(fc*bArwTipY[olBId] < 0.5*fc*bHt[olBId]) 

		sY = fc*bArwTipY[olBId]; 

	else

		sY = -(fc*bHt[olBId]+20)

	o3_offsetx-=Math.round(fc*bArwTipX[olBId]);

	o3_offsety+=Math.round(sY);

}

function doRoundCorners(content) {

	var txt='', wd,ht, zIdx=0, o=olBubbleImg[olBId];

	wd=(olNs4) ? over.clip.width : over.offsetWidth;

	ht=(olNs4) ? over.clip.height : over.offsetHeight;

	txt = (olIe55&&olHideForm) ? backDropSource(wd+28,ht+28,zIdx++) + '<div style="position:absolute; top: 0; left: 0; z-index: '+(zIdx++)+';">' : '';

	txt+= '<table cellpadding="0" cellspacing="0" border="0">'+

				'<tr><td align="right" valign="bottom"><img src="'+o[0].src+'" width="14" height="14"'+(olNs6 ? ' style="display: block;"' : '')+' /></td><td valign="bottom"><img src="'+o[1].src+'" height="14" width="'+wd+'"'+(olNs6 ? ' style="display: block;"' : '')+' /></td><td align="left" valign="bottom"><img src="'+o[2].src+'" width="14" height="14"'+(olNs6 ? ' style="display: block;"' : '')+' /></td></tr>'+

				'<tr><td align="right"><img src="'+o[3].src+'" width="14" height="'+ht+'"'+(olNs6 ? ' style="display: block;"' : '')+' /></td><td bgcolor="#ffffcc">'+content+'</td><td align="left"><img src="'+o[4].src+'" width="14" height="'+ht+'"'+(olNs6 ? ' style="display: block;"' : '')+' /></td></tr>'+

				'<tr><td align="right" valign="top"><img src="'+o[5].src+'" width="14" height="14" /></td><td valign="top"><img src="'+o[6].src+'" height="14" width="'+wd+'" /></td><td align="left" valign="top"><img src="'+o[7].src+'" width="14" height="14" /></td></tr></table>';

	txt += (olIe55&&olHideForm) ? '</div>' : '';

	layerWrite(txt);

	o3_width=wd+28;

	o3_aboveheight=ht+28;

}

function resizeBubble(h1, dF, fold) {

	var df,h2,fnew,alpha,cnt=0;

	while(cnt<2) {

		df=-signOf(h1)*dF;

		fnew=fold+df;

		h2=getHeightDiff(fnew)[0];

		if(Math.abs(h2)<o3_textsize) break;

		if (signOf(h1)!=signOf(h2)) {

			alpha=Math.abs(h1)/(Math.abs(h1)+Math.abs(h2));

			if(h1<0) fnew=alpha*fnew+(1.0-alpha)*fold;

			else fnew=(1.0-alpha)*fnew+alpha*fold;

		} else {

			alpha=Math.abs(h1)/(Math.abs(h2)-Math.abs(h1));

			if(h1<0) fnew=(1.0+alpha)*fold-alpha*fnew;

			else fnew=(1.0+alpha)*fnew-alpha*fold;

		}

		fold=fnew;

		h1=h2;

		dF*=0.5;

		cnt++;

	}

	return fnew;

}

function getHeightDiff(f) {

	var lyrhtml;

	o3_width=Math.round(f*contentWidth[olBId]);

	lyrhtml=runHook('ol_content_simple',FALTERNATE,o3_css,o3_text);

	layerWrite(lyrhtml)

	return [Math.round(f*contentHeight[olBId])-((olNs4) ? over.clip.height : over.offsetHeight),lyrhtml];

}

function signOf(x) {

	return (x<0) ? -1 : 1;

}

////////

// PLUGIN REGISTRATIONS

////////

registerRunTimeFunction(setBubbleVariables);

registerCmdLineFunction(parseBubbleExtras);

registerPostParseFunction(chkForBubbleEffect);

registerHook("createPopup",generateBubble,FAFTER);

registerImages('flower,oval,square,pushpin,quotation,roundcorners'); // root names given to images (should be gif file)

if(olInfo.meets(4.14)) registerNoParameterCommands('bubble,adjbubble');

if(olNs4) document.write('<style type="text/css">\n<!--\n#bLayer, #bContent {position: absolute;}\n-->\n<'+'\/style>');

}

//end