wp/nwyj/.svn/pristine/94/94f949d03cc7f10c824ea1fa08115fc738861157.svn-base

/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

/**
 * @class Ext.grid.RowNumberer This is a utility class that can be passed into a
 *        {@link Ext.grid.ColumnModel} as a column config that provides an
 *        automatic row numbering column. <br>
 *        Usage:<br>
 * 
 * <pre><code>
 * // This is a typical column config with the first column providing row numbers
 * var colModel = new Ext.grid.ColumnModel([new Ext.grid.RowNumberer(), {
 * 			header : &quot;Name&quot;,
 * 			width : 80,
 * 			sortable : true
 * 		}, {
 * 			header : &quot;Code&quot;,
 * 			width : 50,
 * 			sortable : true
 * 		}, {
 * 			header : &quot;Description&quot;,
 * 			width : 200,
 * 			sortable : true
 * 		}]);
 * </code></pre>
 * 
 * @constructor
 * @param {Object}
 *            config The configuration options
 */
Ext.grid.RowNumberer = function(config) {
	Ext.apply(this, config);
	if (this.rowspan) {
		this.renderer = this.renderer.createDelegate(this);
	}
};

Ext.grid.RowNumberer.prototype = {
	/**
	 * @cfg {String} header Any valid text or HTML fragment to display in the
	 *      header cell for the row number column (defaults to '').
	 */
	header : "",
	/**
	 * @cfg {Number} width The default width in pixels of the row number column
	 *      (defaults to 23).
	 */
	width : 23,
	/**
	 * @cfg {Boolean} sortable True if the row number column is sortable
	 *      (defaults to false).
	 */
	sortable : false,

	// private
	fixed : true,
	dataIndex : '',
	id : 'numberer',
	rowspan : undefined,

	// private
	renderer : function(v, p, record, rowIndex) {
		if (this.rowspan) {
			p.cellAttr = 'rowspan="' + this.rowspan + '"';
		}
		return rowIndex + 1;
	}
};