node.js

数据库的程序驱动文件

// node start
function Node(activeToc, description, info,icon,showCheckBox)
{ 
	// Data member
	this.id = -1
	this.toc = activeToc
	this.desc = description
	this.info = info
	this.showCheckBox = showCheckBox;
	this.layer = 0
	this.iconImg = 0 
	this.iconSrc = this.toc.iconItem
	if (icon)
	this.iconSrc = icon

	// Methods
	this.initialize		= nodeInitialize
	this.draw			= nodeDraw
	this.hide			= nodeHide
	this.createIndex	= treeCreateIndex
	this.display		= nodeDisplay
	this.totalHeight	= ItemTotalHeight
}

// nodeInitialize
//
function nodeInitialize(level, lastNode, leftSide){
	this.createIndex()
	if (level>0){
		if (lastNode){
			if (this.toc.showIcons) {
				this.draw(leftSide + "<img src='" + this.toc.iconLine1 + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">")
				leftSide = leftSide + "<img src='" + this.toc.iconEmpty + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">"
			}else
				this.draw(leftSide +"<img src='" + this.toc.iconEmpty + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">")
		}// end fo lastNode
		else {
		   if (this.toc.showIcons) {
				this.draw(leftSide + "<img src='" + this.toc.iconLine2 + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">")
				leftSide = leftSide + "<img src='" + this.toc.iconLine3 + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">"
		   }   else
				this.draw(leftSide +"<img src='" + this.toc.iconEmpty + "' width=" + this.toc.iconWidth + " height=" + this.toc.iconHeight + ">")
		} // end of if else(lastNode)
	}	else  // end of if (level>0)
		this.draw('')
}

// nodeDraw
//
function nodeDraw(leftSide){
    var sHTML = "";	 
	sHTML +="<table " 
	sHTML +=" id='" + this.toc.name + "item" + this.id + "' style='position:block;' "
	sHTML +=" border=0 cellspacing=0 cellpadding=0>\n" 
	sHTML +='<tr><td>' 
	sHTML +=leftSide
	if (this.toc.showIcons) {
			sHTML +="<img id='" + this.toc.name + "itemIcon" + this.id +"' src='"+ this.iconSrc +"' border=0>"
	}
	sHTML +='</td><td valign=middle nowrap>'
	if(this.showCheckBox ==1){
	   sHTML +="<input name='checkboxName' type='checkbox' value='"+this.id+"' onClick='javascript:checkboxClick(\""+this.id+"\",\""+this.info+"\",\""+this.desc+"\")'>"
	}
    sHTML +="<a  style='CURSOR: hand' onclick='javascript:" + this.toc.name +".infoClicked(\""+this.info+"\",\"descriptionStyle"+this.id+"\")' onDblClick='javascript:" + this.toc.name +".infoDoubleClicked(\""+this.info+"\",\"descriptionStyle"+this.id+"\")'>"	
	sHTML +="<font id='descriptionStyle" + this.id+ "'size='2' COLOR='#000000'>" + this.desc + "</font>" 
	sHTML +="</a></td></tr>"
	sHTML +="</table>\n"
    
	//alert(sHTML)
	document.write(sHTML)
    
	this.layer = eval(this.toc.name + "item" + this.id)
    if (this.toc.showIcons)
	 	this.iconImg = eval(this.toc.name + "itemIcon"+ this.id)  
}

// nodeHide
//
function nodeHide()
{ 	 
			if (this.layer.style.display == 'none')
			  return
			this.layer.style.display = 'none' 
}

// nodeDisplay
//
function nodeDisplay()
{
	if (this.layer){
			this.layer.style.display = 'block'
	}
}

// treeCreateIndex
//
function treeCreateIndex()
{
	this.id = this.toc.nodesCounter
	this.toc.nodesIndex[this.toc.nodesCounter] = this
	this.toc.nodesCounter++
}

// ItemTotalHeight
//
function ItemTotalHeight()
{
	var h = this.layer.clip.height
	return h
} 
// node end