[RESOLVED] Read xml from bottom to top

[badeeh]

Hi,

i'm trying to read an xml from the bottom so as the latest item is showed in the top in the flash.

the code below works if i'm readin the xml from top to bottom:

function loadArticle(obj)
{
    scrollBttn.lastY = scrollBttn._y;
    scroll_mc.lastY = scroll_mc._y;
    scrollBttn._y = scrollBttn.originY;
    scroll_mc._y = scroll_mc.originY;
    bttnClose_mc.gotoAndPlay("open");
    toScroll = "article_mc";
    scroll_mc.article_mc.copy_txt.htmlText = copy_full[obj.ID];
    scroll_mc.article_mc.copy_txt._height = scroll_mc.article_mc.copy_txt.textHeight + 20;
    scroll_mc.article_mc.copy_txt.html = true;
    scroll_mc.article_mc.copy_txt.styleSheet = styles;
    scroll_mc.article_mc.headline_txt.text = headline[obj.ID];
    scroll_mc.article_mc.date_txt.text = date[obj.ID];
    scroll_mc.holder_mc.txt.htmlText = copy_pic[obj.ID];
    scroll_mc.holder_mc.txt.html = true;
    scroll_mc.holder_mc.txt.styleSheet = styles;
    scroll_mc.holder_mc.gotoAndStop(1);
    scroll_mc.holder_mc.holder.loadMovie(image_large[obj.ID]);
    destX = -600;
} // End of the function
function loadXML(loaded)
{
    if (loaded)
    {
        xmlNode = this.firstChild;
        headline = [];
        date = [];
        copy_intro = [];
        image_thumb = [];
        copy_full = [];
        copy_pic = [];
        image_large = [];
        total = xmlNode.childNodes.length;
        headerName.text = xmlNode.attributes.Name;
        buildNews();
    }
    else
    {
        trace ("Error loading XML");
    } // end else if
} // End of the function
stageW = 1000;
stageH = 600;
scrollTween = 3;
scrollSpeed = 8;
var styles = new TextField.StyleSheet();
styles.setStyle("a:link", {color: "#C46D4D", textDecoration: "none"});
styles.setStyle("a:hover", {color: "#C46D4D", textDecoration: "none"});
scrollBttn.originY = scrollBttn._y;
scrollBttn.originX = scrollBttn._x;
scrollBttn.maxY = scrollBar._height - scrollBttn._height + scrollBttn.originY;
scroll_mc.originY = scroll_mc._y;
originY = scroll_mc._y;
originX = scroll_mc._x;
scroll_mc.holder_mc.originY = scroll_mc.holder_mc._y;
destX = originX;
toScroll = "item_mc";
scroll_mc.setMask(mask_mc);
scroll_mc.item_mc.item._visible = false;
scrollBttn._visible = false;
Stage.scaleMode = "noScale";
stageListener = new Object(this);
Stage.addListener(stageListener);
alignObjects = function ()
{
    _parent.bg._width = Stage.width;
    _parent.bg._height = Stage.height;
    _parent.bg._x = -(Stage.width - stageW) / 2;
    _parent.bg._y = -(Stage.height - stageH) / 2;
};
stageListener.onResize = function ()
{
    alignObjects();
};
alignObjects();
bttnClose_mc.bttnClose.bttn.onRelease = function ()
{
    scrollBttn._y = scrollBttn.lastY;
    scroll_mc._y = scroll_mc.lastY;
    scroll_mc.holder_mc._y = scroll_mc.holder_mc.originY;
    bttnClose_mc.gotoAndPlay("close");
    toScroll = "item_mc";
    destX = originX;
};
scrollBar.onPress = function ()
{
    jumpTo = _ymouse - scrollBttn._height / 2;
    if (jumpTo < 0)
    {
        scrollBttn._y = 0;
    }
    else if (jumpTo > scrollBar._height - scrollBttn._height)
    {
        scrollBttn._y = scrollBar._height - scrollBttn._height;
    }
    else
    {
        scrollBttn._y = jumpTo;
    } // end else if
};
buildNews = function ()
{
    for (i = 0; i < total; i++)
    {
        image_thumb[i] = xmlNode.childNodes[i].attributes.Thumb;
        image_large[i] = xmlNode.childNodes[i].attributes.Large;
        headline[i] = xmlNode.childNodes[i].childNodes[0].firstChild.nodeValue;
        date[i] = xmlNode.childNodes[i].childNodes[1].firstChild.nodeValue;
        copy_intro[i] = xmlNode.childNodes[i].childNodes[2].firstChild.nodeValue;
        copy_full[i] = xmlNode.childNodes[i].childNodes[3].firstChild.nodeValue;
        copy_pic[i] = xmlNode.childNodes[i].childNodes[4].firstChild.nodeValue;
        scroll_mc.item_mc.item.duplicateMovieClip("item" + i, i);
        scroll_mc.item_mc["item" + i].ID = i;
        scroll_mc.item_mc["item" + i]._y = scroll_mc.item_mc["item" + i]._height * i;
        scroll_mc.item_mc["item" + i].headline_txt.text = headline[i];
        scroll_mc.item_mc["item" + i].date_txt.text = date[i];
        scroll_mc.item_mc["item" + i].intro_txt.htmlText = copy_intro[i];
        scroll_mc.item_mc["item" + i].intro_txt.html = true;
        scroll_mc.item_mc["item" + i].intro_txt._height = scroll_mc.item_mc["item" + i].intro_txt.textHeight + 20;
        scroll_mc.item_mc["item" + i].intro_txt.styleSheet = styles;
        loadMovie(image_thumb[i], scroll_mc.item_mc["item" + i].holder_mc.holder);
        scroll_mc.item_mc["item" + i].holder._alpha = 0;
    } // end of for
};
var mouseListener = new Object(this);
mouseListener.onMouseWheel = function (wheelNum)
{
    if (scrollBttn._y >= scrollBttn.originY)
    {
        scrollBttn._y = scrollBttn._y - wheelNum * scrollRatio * scrollSpeed;
        if (scrollBttn._y < scrollBttn.originY)
        {
            scrollBttn._y = scrollBttn.originY;
        }
        else if (scrollBttn._y > scrollBttn.originY + scrollBar._height - scrollBttn._height)
        {
            scrollBttn._y = scrollBttn.originY + scrollBar._height - scrollBttn._height;
        } // end if
    } // end else if
};
Mouse.addListener(mouseListener);
onEnterFrame = function ()
{
    scroll_mc._x = scroll_mc._x + Math.ceil((destX - scroll_mc._x) / 3);
    scrollRatio = scroll_mc[toScroll]._height / scrollBar._height;
    ratio = (scroll_mc[toScroll]._height - scrollBar._height) / (scrollBar._height - scrollBttn._height);
    if (scroll_mc[toScroll]._height > scrollBar._height)
    {
        destScroll = (-scrollBttn._y + scroll_mc.originY) * ratio + scroll_mc.originY;
        scroll_mc._y = scroll_mc._y + Math.round((destScroll - scroll_mc._y) / scrollTween);
        scrollBttn._visible = true;
    }
    else
    {
        scrollBttn._visible = false;
    } // end else if
    if (toScroll == "article_mc")
    {
        scroll_mc.holder_mc._y = -scroll_mc._y + originY + scroll_mc.holder_mc.originY + scroll_mc.article_mc._y;
    } // end if
};
xmlData = new XML();
xmlData.ignoreWhite = true;
xmlData.onLoad = loadXML;
xmlData.load("press/content.xml");
stop ();

however i want it to do the opposite, so i've tried changing the for loop to this

for (i = (total-1); i > 0; i--)

but it is still showing the item from top to bottom.

any ideas

[whispers]

I dont understand why you want to do that? if you want to manipulate or read the data in special ways..you need to get it into your file first..

for example.. I would suggest you load all data into an ARRAY and then loop through the array backwards... or add to the array in reverse....etc


if the XML is simple enough.. you could get the total chilNodes and loop through in reverse perhaps..

[badeeh]

thx for the info whispers, but i'm already reading the childnodes

total = xmlNode.childNodes.length;

and then looping in reverse, but that is not working??
how would i load them in to an array?? i'm using this

image_thumb = [];

then looping

for (i = 0; i < total; i++)
    {
        image_thumb[i] = xmlNode.childNodes[i].attributes.Thumb;
}

[whispers]

?? this doesnt work for you?

(I made a quick demo)

var totalLinks:Number = 0;

var myXML:XML = new XML();
myXML.ignoreWhite = true;
myXML.onLoad = function(success){
    if(!success){
        trace("XML FAILED TO LOAD!");
    }else{
        trace("XML LOADED");
        totalLinks = myXML.firstChild.childNodes.length;
        trace(totalLinks);
        //going forward:
        for(i=0; i<totalLinks; i++){
            trace(i+" - "+myXML.firstChild.childNodes[i]);
        }
        trace(newline+"-------[new line]-------"+newline);
        //going in reverse
        for(s=totalLinks; s>=0; s--){
            trace(s+" - "+myXML.firstChild.childNodes[s]);
        }
        
    }
}
myXML.load("data.xml");

using this XML:

<?xml version="1.0"?>

<object>
    <link>document1-1.pdf</link>
    <link>document1-2.pdf</link>
    <link>document1-3.pdf</link>
    <link>document2-1.pdf</link>
    <link>document2-3.pdf</link>
</object>

if you wanted to dump the data form the XML into an array..

do like so:

var linkArray:Array = new Array();

[and this part goes in your in your onLoad() functn]

//dump to array:
for(e=0; e<totalLinks; e++){
linkArray.push(myXML.firstChild.childNodes[e]);
trace(linkArray[e]);
}



that puts the stuff in the array in the normal order it is in the XML..

you can loop through it in reverse.. (liek we did fo the XML nodes)

you can add to the ARRAY but looping through the XML nodes in reverse.. (hence the Array will be in reverse)..


or you can take any normal array and use the reverse method. which will take an array and reverse the contents..



example:
var numbers_array:Array = new Array(1, 2, 3, 4, 5, 6);
trace(numbers_array); // Displays 1,2,3,4,5,6.
numbers_array.reverse();
trace(numbers_array); // Displays 6,5,4,3,2,1.

[badeeh]

Thank you, it solved my problem

[whispers]

glad it all worked out.!