//**************************************************************** 

// You are free to copy the "Folder-Tree" script as long as you  

// keep this copyright notice: 

// Script found in: http://www.geocities.com/Paris/LeftBank/2178/ 

// Author: Marcelino Alves Martins ([email protected]) December '97. 

//**************************************************************** 

//Log of changes: 

//       17 Feb 98 - Fix initialization flashing problem with Netscape

//       

//       27 Jan 98 - Root folder starts open; support for USETEXTLINKS; 

//                   make the ftien4 a js file 

//       

// DvH:  Dec 2000 -  Made some minor changes to support external 

//                   references

// Definition of class Folder 

// ***************************************************************** 

function Folder(folderDescription, tagName, hreference) //constructor 

{ 

  //constant data 

  this.desc = folderDescription 

  this.tagName = tagName

  this.hreference = hreference 

  this.id = -1   

  this.navObj = 0  

  this.iconImg = 0  

  this.nodeImg = 0  

  this.isLastNode = 0 

  //dynamic data 

  this.isOpen = true 

  this.iconSrc = "ftv2folderopen.png"   

  this.children = new Array 

  this.nChildren = 0 

  //methods 

  this.initialize = initializeFolder 

  this.setState = setStateFolder 

  this.addChild = addChild 

  this.createIndex = createEntryIndex 

  this.hide = hideFolder 

  this.display = display 

  this.renderOb = drawFolder 

  this.totalHeight = totalHeight 

  this.subEntries = folderSubEntries 

  this.outputLink = outputFolderLink 

} 

function setStateFolder(isOpen) 

{ 

  var subEntries 

  var totalHeight 

  var fIt = 0 

  var i=0 

  if (isOpen == this.isOpen) 

    return 

  if (browserVersion == 2)  

  { 

    totalHeight = 0 

    for (i=0; i < this.nChildren; i++) 

      totalHeight = totalHeight + this.children[i].navObj.clip.height 

      subEntries = this.subEntries() 

    if (this.isOpen) 

      totalHeight = 0 - totalHeight 

    for (fIt = this.id + subEntries + 1; fIt < nEntries; fIt++) 

      indexOfEntries[fIt].navObj.moveBy(0, totalHeight) 

  }  

  this.isOpen = isOpen 

  propagateChangesInState(this) 

} 

function propagateChangesInState(folder) 

{   

  var i=0 

  if (folder.isOpen) 

  { 

    if (folder.nodeImg) 

      if (folder.isLastNode) 

        folder.nodeImg.src = "ftv2mlastnode.png" 

      else 

	  folder.nodeImg.src = "ftv2mnode.png" 

    folder.iconImg.src = "ftv2folderopen.png" 

    for (i=0; i<folder.nChildren; i++) 

      folder.children[i].display() 

  } 

  else 

  { 

    if (folder.nodeImg) 

      if (folder.isLastNode) 

        folder.nodeImg.src = "ftv2plastnode.png" 

      else 

	  folder.nodeImg.src = "ftv2pnode.png" 

    folder.iconImg.src = "ftv2folderclosed.png" 

    for (i=0; i<folder.nChildren; i++) 

      folder.children[i].hide() 

  }  

} 

function hideFolder() 

{ 

  if (browserVersion == 1 || browserVersion == 3) { 

    if (this.navObj.style.display == "none") 

      return 

    this.navObj.style.display = "none" 

  } else { 

    if (this.navObj.visibility == "hidden") 

      return 

    this.navObj.visibility = "hidden" 

  } 

  this.setState(0) 

} 

function initializeFolder(level, lastNode, leftSide) 

{ 

var j=0 

var i=0 

var numberOfFolders 

var numberOfDocs 

var nc 

  nc = this.nChildren 

  this.createIndex() 

  var auxEv = "" 

  if (browserVersion > 0) 

    auxEv = "<a href='javascript:clickOnNode("+this.id+")'>" 

  else 

    auxEv = "<a>" 

  if (level>0) 

    if (lastNode) //the last 'brother' in the children array 

    { 

      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='ftv2mlastnode.png' width=16 height=22 border=0></a>") 

      leftSide = leftSide + "<img src='ftv2blank.png' width=16 height=22>"  

      this.isLastNode = 1 

    } 

    else 

    { 

      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='ftv2mnode.png' width=16 height=22 border=0></a>") 

      leftSide = leftSide + "<img src='ftv2vertline.png' width=16 height=22>" 

      this.isLastNode = 0 

    } 

  else 

    this.renderOb("") 

  if (nc > 0) 

  { 

    level = level + 1 

    for (i=0 ; i < this.nChildren; i++)  

    { 

      if (i == this.nChildren-1) 

        this.children[i].initialize(level, 1, leftSide) 

      else 

        this.children[i].initialize(level, 0, leftSide) 

      } 

  } 

} 

function drawFolder(leftSide) 

{ 

  if (browserVersion == 2) { 

    if (!doc.yPos) 

      doc.yPos=8 

    doc.write("<layer id='folder" + this.id + "' top=" + doc.yPos + " visibility=hidden>") 

  } 

  if (browserVersion == 3) 

  {

    doc.write("<div id='folder" + this.id + "' style='visibility:hide;'>") 

  }

  doc.write("\n<table ") 

  if (browserVersion == 1) 

    doc.write(" id='folder" + this.id + "' style='position:block;' ") 

  doc.write(" border=0 cellspacing=0 cellpadding=0>") 

  doc.write("\n<tr><td>") 

  doc.write(leftSide) 

  this.outputLink() 

  doc.write("<img name='folderIcon" + this.id + "' ") 

  doc.write("src='" + this.iconSrc+"' border=0></a>") 

  doc.write("</td>\n<td valign=middle nowrap>") 

  if (USETEXTLINKS) 

  { 

    this.outputLink() 

    doc.write(this.desc + "</a>") 

  } 

  else 

    doc.write(this.desc) 

  if (this.tagName!="")

  {

    doc.write(" [external]")

  }

  doc.write("</td>")  

  doc.write("\n</table>\n") 

  if (browserVersion == 2) { 

    doc.write("</layer>") 

  } 

  if (browserVersion == 3) { 

    doc.write("</div>") 

  } 

  if (browserVersion == 1) { 

    this.navObj = doc.all["folder"+this.id] 

    this.iconImg = doc.all["folderIcon"+this.id] 

    this.nodeImg = doc.all["nodeIcon"+this.id] 

  } else if (browserVersion == 2) { 

    this.navObj = doc.layers["folder"+this.id] 

    this.iconImg = this.navObj.document.images["folderIcon"+this.id] 

    this.nodeImg = this.navObj.document.images["nodeIcon"+this.id] 

    doc.yPos=doc.yPos+this.navObj.clip.height 

  } else if (browserVersion == 3) {

    this.navObj = doc.getElementById("folder"+this.id)

    this.iconImg = doc.images.namedItem("folderIcon"+this.id)

    this.nodeImg = doc.images.namedItem("nodeIcon"+this.id)

  }

} 

function outputFolderLink() 

{ 

  if (this.hreference) 

  { 

    doc.write("<a ")

    if (this.tagName)

    {

      doc.write("doxygen='" + this.tagName + "' ");

    }

    doc.write("href='" + this.hreference + "' TARGET=\"basefrm\" ") 

    if (browserVersion > 0) 

      doc.write("onClick='javascript:clickOnFolder("+this.id+")'") 

    doc.write(">") 

  } 

  else 

    doc.write("<a>") 

} 

function addChild(childNode) 

{ 

  this.children[this.nChildren] = childNode 

  this.nChildren++ 

  return childNode 

} 

function folderSubEntries() 

{ 

  var i = 0 

  var se = this.nChildren 

  for (i=0; i < this.nChildren; i++){ 

    if (this.children[i].children) //is a folder 

      se = se + this.children[i].subEntries() 

  } 

  return se 

} 

// Definition of class Item (a document or link inside a Folder) 

// ************************************************************* 

function Item(itemDescription, tagName, itemLink) // Constructor 

{ 

  // constant data 

  this.desc = itemDescription 

  this.tagName = tagName

  this.link = itemLink 

  this.id = -1 //initialized in initalize() 

  this.navObj = 0 //initialized in render() 

  this.iconImg = 0 //initialized in render() 

  this.iconSrc = "ftv2doc.png" 

  // methods 

  this.initialize = initializeItem 

  this.createIndex = createEntryIndex 

  this.hide = hideItem 

  this.display = display 

  this.renderOb = drawItem 

  this.totalHeight = totalHeight 

} 

function hideItem() 

{ 

  if (browserVersion == 1 || browserVersion == 3) { 

    if (this.navObj.style.display == "none") 

      return 

    this.navObj.style.display = "none" 

  } else { 

    if (this.navObj.visibility == "hidden") 

      return 

    this.navObj.visibility = "hidden" 

  }     

} 

function initializeItem(level, lastNode, leftSide) 

{  

  this.createIndex() 

  if (level>0) 

    if (lastNode) //the last 'brother' in the children array 

    { 

      this.renderOb(leftSide + "<img src='ftv2lastnode.png' width=16 height=22>") 

      leftSide = leftSide + "<img src='ftv2blank.png' width=16 height=22>"  

    } 

    else 

    { 

      this.renderOb(leftSide + "<img src='ftv2node.png' width=16 height=22>") 

      leftSide = leftSide + "<img src='ftv2vertline.png' width=16 height=22>" 

    } 

  else 

    this.renderOb("")   

} 

function drawItem(leftSide) 

{ 

  if (browserVersion == 2) 

    doc.write("<layer id='item" + this.id + "' top=" + doc.yPos + " visibility=hidden>") 

  if (browserVersion == 3) 

    doc.write("<div id='item" + this.id + "' style='display:block;'>") 

  doc.write("\n<table ") 

  if (browserVersion == 1) 

    doc.write(" id='item" + this.id + "' style='position:block;' ") 

  doc.write(" border=0 cellspacing=0 cellpadding=0>\n") 

  doc.write("<tr><td>") 

  doc.write(leftSide) 

  if (this.link!="")

  {

    doc.write("<a href=" + this.link + ">") 

  }

  doc.write("<img id='itemIcon"+this.id+"' ") 

  doc.write("src='"+this.iconSrc+"' border=0>") 

  if (this.link!="")

  {

    doc.write("</a>")

  } 

  doc.write("</td>\n<td valign=middle nowrap>") 

  if (USETEXTLINKS && this.link!="") 

    doc.write("<a href=" + this.link + ">" + this.desc + "</a>") 

  else 

    doc.write(this.desc) 

  if (this.tagName!="")

  {

    doc.write(" [external]");

  }

  doc.write("\n</table>\n") 

  if (browserVersion == 2) 

    doc.write("</layer>") 

  if (browserVersion == 3) 

    doc.write("</div>")

  if (browserVersion == 1) { 

    this.navObj = doc.all["item"+this.id] 

    this.iconImg = doc.all["itemIcon"+this.id] 

  } else if (browserVersion == 2) { 

    this.navObj = doc.layers["item"+this.id] 

    this.iconImg = this.navObj.document.images["itemIcon"+this.id] 

    doc.yPos=doc.yPos+this.navObj.clip.height 

  } else if (browserVersion == 3) {

    this.navObj = doc.getElementById("item"+this.id)

    this.iconImg = doc.images.namedItem("itemIcon"+this.id)

  }

} 

// Methods common to both objects (pseudo-inheritance) 

// ******************************************************** 

function display() 

{ 

  if (browserVersion == 1 || browserVersion == 3) 

    this.navObj.style.display = "block" 

  else 

    this.navObj.visibility = "show" 

} 

function createEntryIndex() 

{ 

  this.id = nEntries 

  indexOfEntries[nEntries] = this 

  nEntries++ 

} 

// total height of subEntries open 

function totalHeight() //used with browserVersion == 2 

{ 

  var h = this.navObj.clip.height 

  var i = 0 

  if (this.isOpen) //is a folder and _is_ open 

    for (i=0 ; i < this.nChildren; i++)  

      h = h + this.children[i].totalHeight() 

  return h 

} 

// Events 

// ********************************************************* 

function clickOnFolder(folderId) 

{ 

  var clicked = indexOfEntries[folderId] 

  if (!clicked.isOpen) 

    clickOnNode(folderId) 

  return  

  if (clicked.isSelected) 

    return 

} 

function clickOnNode(folderId) 

{ 

  var clickedFolder = 0 

  var state = 0 

  clickedFolder = indexOfEntries[folderId] 

  state = clickedFolder.isOpen 

  clickedFolder.setState(!state) //open<->close  

} 

function initializeDocument() 

{ 

  doc = document;

  if (doc.all) 

    browserVersion = 1 //IE4   

  else 

    if (doc.layers) 

      browserVersion = 2 //NS4 

    else if(navigator.userAgent.toLowerCase().indexOf('gecko') != -1)

        browserVersion = 3 //mozilla

      else 

        browserVersion = 0 //other 

  foldersTree.initialize(0, 1, "") 

  foldersTree.display()

  if (browserVersion > 0) 

  { 

    if(browserVersion != 3)

      doc.write("<layer top="+indexOfEntries[nEntries-1].navObj.top+">&nbsp;</layer>") 

    // close the whole tree 

    clickOnNode(0) 

    // open the root folder 

    clickOnNode(0) 

  } 

} 

// Auxiliary Functions for Folder-Treee backward compatibility 

// ********************************************************* 

function gFld(description, tagName, hreference) 

{ 

  folder = new Folder(description, tagName, hreference) 

  return folder 

} 

function gLnk(description, tagName, linkData) 

{ 

  fullLink = "" 

  if (linkData!="")

  {

    fullLink = "'"+linkData+"' target=\"basefrm\"" 

  } 

  linkItem = new Item(description, tagName, fullLink)   

  return linkItem 

} 

function insFld(parentFolder, childFolder) 

{ 

  return parentFolder.addChild(childFolder) 

} 

function insDoc(parentFolder, document) 

{ 

  parentFolder.addChild(document) 

} 

// Global variables 

// **************** 

USETEXTLINKS = 1

indexOfEntries = new Array 

nEntries = 0 

doc = document 

browserVersion = 0 

selectedFolder=0