UI拼图导出脚本，兼容cegui的ImageSet格式

该脚本用于photoshop，美术可以先用photoshop拼接图片，在加载该脚本导出xml格式的文件，该文件记录了每个小的图片坐标信息

// Copyright 2002-2003.  Adobe Systems, Incorporated.  All rights reserved.
// Set the active layer to the last art layer of the active document, or the
// first if the last is already active.

function getLayerSetsIndex()
{
       function getNumberLayers()
       {
           var ref = new ActionReference();
           ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID("NmbL") )
           ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
           return executeActionGet(ref).getInteger(charIDToTypeID("NmbL"));
       }
       function hasBackground()
       {
           var ref = new ActionReference();
           ref.putProperty( charIDToTypeID("Prpr"), charIDToTypeID( "Bckg" ));
           ref.putEnumerated(charIDToTypeID( "Lyr " ),charIDToTypeID( "Ordn" ),charIDToTypeID( "Back" ))//bottom Layer/background
           var desc =  executeActionGet(ref);
           var res = desc.getBoolean(charIDToTypeID( "Bckg" ));
           return res
        };
       function getLayerType(idx,prop)
       {
           var ref = new ActionReference();
           ref.putIndex(charIDToTypeID( "Lyr " ), idx);
           var desc =  executeActionGet(ref);
           var type = desc.getEnumerationValue(prop);
           var res = typeIDToStringID(type);
           return res
        };

       var cnt = getNumberLayers()+1;
       var res = new Array();
        if(hasBackground())
        {
             var i = 0;
        }
        else
        {
             var i = 1;
        };

       var prop =  stringIDToTypeID("layerSection")
       for(i;i<cnt;i++)
       {
          var temp = getLayerType(i,prop);
          if(temp == "layerSectionStart" || temp == "layerSectionContent")
            res.push(i);
       };
       return res;
    };

    function makeActiveByIndex( idx, visible )
    {
       var desc = new ActionDescriptor();
       var ref = new ActionReference();
       ref.putIndex(charIDToTypeID( "Lyr " ), idx)
       desc.putReference( charIDToTypeID( "null" ), ref );
       desc.putBoolean( charIDToTypeID( "MkVs" ), visible );
       executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO );
    };

    function getLayerBoundsByIndex( idx )
    {
        var ref = new ActionReference();
        ref.putProperty( charIDToTypeID("Prpr") , stringIDToTypeID( "bounds" ));
        ref.putIndex( charIDToTypeID( "Lyr " ), idx );
        var desc = executeActionGet(ref).getObjectValue(stringIDToTypeID( "bounds" ));
        var bounds = [];// array of Numbers as pixels regardless of ruler
        bounds.push(desc.getUnitDoubleValue(stringIDToTypeID('left')));
        bounds.push(desc.getUnitDoubleValue(stringIDToTypeID('top')));
        bounds.push(desc.getUnitDoubleValue(stringIDToTypeID('right')));
        bounds.push(desc.getUnitDoubleValue(stringIDToTypeID('bottom')));
        return bounds;
    }

    function getLayerNameByIndex(idx)
    {
        var ref = new ActionReference();
        ref.putProperty( charIDToTypeID("Prpr") , stringIDToTypeID( "name" ));
        ref.putIndex( charIDToTypeID( "Lyr " ), idx );
        var name = executeActionGet(ref).getString(stringIDToTypeID( "name" ));
        return name;
    }

function StringBuffer()
{
    this._strings = [];
    if(arguments.length==1)
    {
         this._strings.push(arguments[0]);
    }
}   

StringBuffer.prototype.Append = function(str)
{
     this._strings.push(str);
     return this;
 }   

 StringBuffer.prototype.ToString = function()
 {
     return this._strings.join("");
 }   

var docRef = app.activeDocument;

var saveRef = File.saveDialog( "Save as","Text Files:*.xml");
var savename = saveRef.name;
savename = savename.replace(/.xml/, "")
if (saveRef)
{
  saveRef.open("w");

   var groups = getLayerSetsIndex();

    var strCotent = new StringBuffer()
    strCotent.Append("<?xml version= "+'/"'+'1.0' +'/"' +"?>");
    strCotent.Append("\n");
    strCotent.Append("<Imageset Name=");
    strCotent.Append(savename);
    strCotent.Append(" Imagefile=");
    strCotent.Append(savename);
    strCotent.Append(">\n")

    //for(var i = 0; i < groups.length; ++i)
    for(var i = groups.length -1; i >= 0; --i)
    {
       makeActiveByIndex( groups[i], true );

       var activelayer = app.activeDocument.activeLayer

        var  _layername = "" + activelayer
        var layertype = _layername.substr(1, 8)

        layername = getLayerNameByIndex(groups[i])   

        if (layertype == "ArtLayer")
        {
             var bound = getLayerBoundsByIndex(groups[i])

            var boundrect1 = parseInt(bound[0])
            var boundrect2 = parseInt(bound[1])
            var boundrect3 = parseInt(bound[2])
            var boundrect4 = parseInt(bound[3])

            strCotent.Append("<Image Name="+ '/"'+ layername + '/"');
            strCotent.Append(" XPos=" + boundrect1);
            strCotent.Append(" YPos=" + boundrect2);

            strCotent.Append(" Width=" + boundrect3);
            strCotent.Append(" Height=" + boundrect4);
            strCotent.Append('/>');
            //var StringTemp = "Image" + '\t' + layername
            //strCotent.Append(StringTemp)
        }
    }
    strCotent.append('/n</ImageSet>');
    saveRef.write(strCotent.ToString())
}

saveRef.close();
alert("导出完成！");
docRef = null;