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applications/htmlroot/overlib_shadow.js  view on Meta::CPAN

// changed on your html page or through an overLIB call.
////////
if (typeof ol_shadowadjust=='undefined') var ol_shadowadjust=2;  // for Ns4.x only
if (typeof ol_shadow=='undefined') var ol_shadow=0;
if (typeof ol_shadowcolor=='undefined') var ol_shadowcolor='#CCCCCC';
if (typeof ol_shadowimage=='undefined') var  ol_shadowimage='';
if (typeof ol_shadowopacity=='undefined') var  ol_shadowopacity=0;
if (typeof ol_shadowx=='undefined') var ol_shadowx=5;
if (typeof ol_shadowy=='undefined') var ol_shadowy=5;

////////
// 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_shadow=0;
var o3_shadowcolor="#cccccc";
var o3_shadowimage='';
var o3_shadowopacity=0;
var o3_shadowx=5;
var o3_shadowy=5;
var bkSet=0;  // Needed for this effect in NS4



// Function which sets runtime variables to their default values
function setShadowVariables() {
	o3_shadow=ol_shadow;
	o3_shadowcolor=ol_shadowcolor;
	o3_shadowimage=ol_shadowimage;
	o3_shadowopacity=ol_shadowopacity;
	o3_shadowx=ol_shadowx;
	o3_shadowy=ol_shadowy;
}


// Parses shadow commands
function parseShadowExtras(pf,i,ar) {
	var k = i, v;
	
	if (k < ar.length) {
		if (ar[k]==SHADOW) { eval(pf +'shadow=('+pf+'shadow==0) ? 1 : 0'); return k; }
		if (ar[k]==SHADOWCOLOR) { eval(pf+'shadowcolor="'+ar[++k]+'"'); return k; }
		if (ar[k]==SHADOWOPACITY) {v=ar[++k]; eval(pf+'shadowopacity='+(olOp ? 0 : v)); return k; }
		if (ar[k]==SHADOWIMAGE) { eval(pf+'shadowimage="'+ar[++k]+'"'); return k; }
		if (ar[k]==SHADOWX) { eval(pf+'shadowx='+ar[++k]); return k; }
		if (ar[k]==SHADOWY) { eval(pf+'shadowy='+ar[++k]); return k; }
	}
	
	return -1;
}


// Function for MOUSEOUT/MOUSEOFF feature with shadow
function shadow_cursorOff() {
	var left= parseInt(over.style.left);
	var top=parseInt(over.style.top);
	var right=left+(o3_shadow ? o3_width : over.offsetWidth);
	var bottom=top+(o3_shadow ? o3_aboveheight : over.offsetHeight);
	
	if (o3_x < left || o3_x > right || o3_y < top || o3_y > bottom) return true;
	return false;
}

// Pre-hide processing to clean-up.
function checkShadowPreHide() {
	if (o3_shadow && o3_shadowopacity) cleanUpShadowEffects();
	if (o3_shadow && (olIe4 && isMac) ) over.style.pixelWidth=over.style.pixelHeight = 0;
}


// Funciton that creates the actual shadow
function generateShadow(content) {
	var wd, ht, X = 0, Y = 0, zIdx = 0, txt, dpObj, puObj, bS= '', aPos, posStr=new Array();

	if (!o3_shadow || (o3_shadowx == 0 && o3_shadowy == 0)) return;

	X = Math.abs(o3_shadowx);
	Y = Math.abs(o3_shadowy);
	wd = parseInt(o3_width);
	ht = (olNs4) ? over.clip.height : over.offsetHeight;

	if (o3_shadowx == 0) {
		if (o3_shadowy < 0) {
		  posStr[0]=' left:0; top: 0';
		  posStr[1]=' left:0; top: '+Y+'px';
		} else if (o3_shadowy > 0) {
		  posStr[0]=' left:0; top: '+Y+'px';
		  posStr[1]=' left:0; top:0';
		}
	} else if (o3_shadowy == 0) {
		if (o3_shadowx < 0) {
		  posStr[0]=' left:0; top: 0';
		  posStr[1]=' left: '+X+'px';
		} else if (o3_shadowx > 0) {
		  posStr[0]=' left: '+ X+'px; top: 0';
		  posStr[1]=' left:0; top:0';
		}
	} else if (o3_shadowx > 0) {
		if (o3_shadowy > 0) {
		  posStr[0]=' left:'+ X+'px; top:'+Y+'px';
		  posStr[1]=' left:0; top:0';
		} else if (o3_shadowy < 0) {
		  posStr[0]=' left:'+X+'px; top:0';
		  posStr[1]=' left:0; top: '+Y+'px';
		}
	} else if (o3_shadowx < 0) {
		if (o3_shadowy > 0) {
		  posStr[0]=' left:0; top:'+Y+'px';
		  posStr[1]=' left:'+X+'px; top:0';
		} else if (o3_shadowy < 0) {
		  posStr[0]=' left:0; top:0';
		  posStr[1]=' left:'+X+'px; top:'+Y+'px';
		}