// nCode Image Resizer for SMF 1.1

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

// Version: 1.0.1

// Converted to SMF use by m3talc0re (webtechnica.net)

//

// (c) 2007 nCode



NcodeImageResizer.IMAGE_ID_BASE = 'ncode_imageresizer_container_';

NcodeImageResizer.WARNING_ID_BASE = 'ncode_imageresizer_warning_';

NcodeImageResizer.scheduledResizes = [];



function NcodeImageResizer(id, img) {

        this.id = id;

        this.img = img;

        this.originalWidth = 0;

        this.originalHeight = 0;

        this.warning = null;

        this.warningTextNode = null;

        this.originalWidth = img.originalWidth;

        this.originalHeight = img.originalHeight;

        

        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) {

        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;

        }

        

        if(!img.originalWidth) img.originalWidth = img.width;

        if(!img.originalHeight) img.originalHeight = img.height;

        

        if((NcodeImageResizer.MAXWIDTH > 0 && img.originalWidth > NcodeImageResizer.MAXWIDTH) || (NcodeImageResizer.MAXHEIGHT > 0 && img.originalHeight > NcodeImageResizer.MAXHEIGHT)) {

                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) {

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

                        if(document.getElementById(NcodeImageResizer.WARNING_ID_BASE+newid) != null) {

                                resizer = new NcodeImageResizer(newid, img);

                                isRecovery = true;

                                resizer.restoreImage();

                        }

                } else {

                        newid = NcodeImageResizer.getNextId();

                        resizer = new NcodeImageResizer(newid, img);

                }

                

                if(isRecovery) {

                        resizer.reclaimWarning(newid);

                } else {

                        resizer.createWarning();

                }

                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() {

        var mtable = document.createElement('TABLE');

        var mtbody = document.createElement('TBODY');

        var mtr = document.createElement('TR');

        var mtd1 = document.createElement('TD');

        var mtd2 = document.createElement('TD');

        var mimg = document.createElement('IMG');

        var mtext = document.createTextNode('');

        

        mimg.src = NcodeImageResizer.BBURL+'/icons/assist.gif';

        mimg.width = 16;

        mimg.height = 16;

        mimg.alt = '';

        mimg.border = 0;

        

        mtd1.width = 20;

        mtd1.className = 'td1';

        

        mtd2.unselectable = 'on';

        mtd2.className = 'td2';

        

        mtable.className = 'ncode_imageresizer_warning';

        mtable.textNode = mtext;

        mtable.resize = this;

        mtable.id = NcodeImageResizer.WARNING_ID_BASE+this.id;

        

        mtd1.appendChild(mimg);

        mtd2.appendChild(mtext);

        

        mtr.appendChild(mtd1);

        mtr.appendChild(mtd2);

        

        mtbody.appendChild(mtr);

        

        mtable.appendChild(mtbody);

        

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

        

        this.warning = mtable;

        this.warningTextNode = mtext;

}



NcodeImageResizer.prototype.setText = function(text) {

        var newnode = document.createTextNode(text);

        this.warningTextNode.parentNode.replaceChild(newnode, this.warningTextNode);

        this.warningTextNode = newnode;

}



NcodeImageResizer.prototype.scale = function() {

        this.img.height = this.originalHeight;

        this.img.width = this.originalWidth;

        

        if(NcodeImageResizer.MAXWIDTH > 0 && this.img.width > NcodeImageResizer.MAXWIDTH) {

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

                this.img.width = NcodeImageResizer.MAXWIDTH;

        }

        

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

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

                this.img.height = NcodeImageResizer.MAXHEIGHT;

        }

        

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

        this.warning.onclick = function() { return this.resize.unScale(); }

        

        if(this.img.width < 450) {

                this.setText(vbphrase['ncode_imageresizer_warning_small']);

        } else if(this.img.fileSize && this.img.fileSize > 0) {

                this.setText(vbphrase['ncode_imageresizer_warning_filesize'].replace('%1$s', this.originalWidth).replace('%2$s', this.originalHeight).replace('%3$s', Math.round(this.img.fileSize/1024)));

        } else {

                this.setText(vbphrase['ncode_imageresizer_warning_no_filesize'].replace('%1$s', this.originalWidth).replace('%2$s', this.originalHeight));

        }

        

        return false;

}



NcodeImageResizer.prototype.unScale = function() {

        switch(NcodeImageResizer.MODE) {

                case 'samewindow':

                        window.open(this.img.src, '_self');

                        break;

                case 'newwindow':

                        window.open(this.img.src, '_blank');

                        break;

                case 'enlarge':

                default:

                        this.img.width = this.originalWidth;

                        this.img.height = this.originalHeight;

                        this.img.className = 'ncode_imageresizer_original';

                        if(this.warning != null) {

                                this.setText(vbphrase['ncode_imageresizer_warning_fullsize']);

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

                                this.warning.onclick = function() { return this.resize.scale() };

                        }

                        break;

        }

        

        return false;

}