// nCode Image Resizer for vBulletin 3.6.0

// http://www.ncode.nl/vbulletinplugins/

// Version: 1.0

//

// (c) 2007 nCode



NcodeImageResizer.IMAGE_ID_BASE = 'ncode_imageresizer_container_';

NcodeImageResizer.WARNING_ID_BASE = 'ncode_imageresizer_warning_';

NcodeImageResizer.scheduledResizes = [];

NcodeImageResizer.MAXHEIGHT = 0;



function NcodeImageResizer(id, img) {

	this.id = id;

	this.img = img;

	this.originalWidth = 0;

	this.originalHeight = 0;

	this.warning = null;

	this.warningTextNode = null;

	

	img.id = NcodeImageResizer.IMAGE_ID_BASE+id;

}



NcodeImageResizer.executeOnload = function() {

	var rss = NcodeImageResizer.scheduledResizes;

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

		NcodeImageResizer.createOn(rss[i], true);

	}

}



NcodeImageResizer.schedule = function(img) {

	if(NcodeImageResizer.scheduledResizes.length == 0) {

		if(window.addEventListener) {

			window.addEventListener('load', NcodeImageResizer.executeOnload, false);

		} else if(window.attachEvent) {

			window.attachEvent('onload', NcodeImageResizer.executeOnload);

		}

	}

	NcodeImageResizer.scheduledResizes.push(img);

}



NcodeImageResizer.getNextId = function() {

	var id = 1;

	while(document.getElementById(NcodeImageResizer.IMAGE_ID_BASE+id) != null) {

		id++;

	}

	return id;

}



NcodeImageResizer.createOnId = function(id) {

	return NcodeImageResizer.createOn(document.getElementById(id));

}



NcodeImageResizer.createOn = function(img, isSchedule, postID) {

	if(typeof isSchedule == 'undefined') isSchedule = false;

	

	if(!img || !img.tagName || img.tagName.toLowerCase() != 'img') {

		alert(img+' is not an image ('+img.tagName.toLowerCase()+')');

	}

	if(img.width == 0 || img.height == 0) {

		if(!isSchedule)

			NcodeImageResizer.schedule(img);

		return;

	}

	

	var isRecovery = false; // if this is a recovery from QuickEdit, which only restores the HTML, not the OO structure

	var newid, resizer;

	if(img.id && img.id.indexOf(NcodeImageResizer.IMAGE_ID_BASE) == 0 && document.getElementById(NcodeImageResizer.WARNING_ID_BASE+img.id.substr(NcodeImageResizer.IMAGE_ID_BASE.length)) != null) {

		newid = img.id.substr(NcodeImageResizer.IMAGE_ID_BASE.length);

		resizer = new NcodeImageResizer(newid, img);

		isRecovery = true;

		resizer.restoreImage();

	} else {

		newid = NcodeImageResizer.getNextId();

		resizer = new NcodeImageResizer(newid, img);

	}

	

	if (resizer.originalWidth == 0) resizer.originalWidth = img.width;

	if (resizer.originalHeight == 0) resizer.originalHeight = img.height;

	

	if((NcodeImageResizerMAXWIDTH > 0 && resizer.originalWidth > NcodeImageResizerMAXWIDTH) || (NcodeImageResizer.MAXHEIGHT > 0 && resizer.originalHeight > NcodeImageResizer.MAXHEIGHT)) {

		if(isRecovery) {

			resizer.reclaimWarning(newid);

		} else {

			resizer.createWarning(postID);

		}

		resizer.scale();

	}

}



NcodeImageResizer.prototype.restoreImage = function() {

	newimg = document.createElement('IMG');

	newimg.src = this.img.src;

	this.img.width = newimg.width;

	this.img.height = newimg.height;

}



NcodeImageResizer.prototype.reclaimWarning = function(id) {

	this.warning = document.getElementById(NcodeImageResizer.WARNING_ID_BASE+id);

	this.warningTextNode = this.warning.firstChild.firstChild.childNodes[1].firstChild;

	this.warning.resize = this;

	

	this.scale();

}



NcodeImageResizer.prototype.createWarning = function(postID) {

	var mtext = document.createElement('A');

	mtext.className = 'redimensionada';

	mtext.rel = "lightbox[" + postID + "]";

	mtext.title = "Imagem original";

	this.img.parentNode.insertBefore(mtext, this.img);

	this.warning = mtext;

	this.warningTextNode = mtext;

}



NcodeImageResizer.prototype.setText = function(text) 

{

	this.warningTextNode.innerHTML = text;

	this.warningTextNode.href = this.img.src;

	this.warningTextNode.onclick = function () {myLightbox.start(this); return false;}

}



NcodeImageResizer.prototype.scale = function() {

	this.img.height = this.originalHeight;

	this.img.width = this.originalWidth;

	var resized = false;

	if(NcodeImageResizerMAXWIDTH > 0 && this.img.width > NcodeImageResizerMAXWIDTH) {

		resized = true;

		this.img.height = (NcodeImageResizerMAXWIDTH / this.img.width) * this.img.height;

		this.img.width = NcodeImageResizerMAXWIDTH;

	}

	

	if(NcodeImageResizer.MAXHEIGHT > 0 && this.img.height > NcodeImageResizer.MAXHEIGHT) {

		resized = true;

		this.img.width = (NcodeImageResizer.MAXHEIGHT / this.img.height) * this.img.width;

		this.img.height = NcodeImageResizer.MAXHEIGHT;

	}

	

	this.warning.width = this.img.width;

	

	if(this.img.width >= NcodeImageResizerMAXWIDTH)

	{

		this.img.border = 1;

		this.img.style.border = "1px black solid";

		this.setText("&nbsp;Imagem redimensionada, clique para ver em tamanho real&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>");

	}

	

	return false;

}