// SpryDataExtensions.js - version 0.3 - Spry Pre-Release 1.6
//
// Copyright (c) 2007. Adobe Systems Incorporated.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
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//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
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Spry.Data.DataSet.multiFilterFuncs={};Spry.Data.DataSet.multiFilterFuncs.and=function(ds,row,rowNumber)
{var filters=ds.activeFilters;if(filters)
{var numFilters=filters.length;for(var i=0;i<numFilters;i++)
{row=filters[i](ds,row,rowNumber);if(!row)
break;}}
return row;};Spry.Data.DataSet.multiFilterFuncs.or=function(ds,row,rowNumber)
{var filters=ds.activeFilters;if(filters&&filters.length>0)
{var numFilters=filters.length;for(var i=0;i<numFilters;i++)
{var savedRow=row;row=filters[i](ds,row,rowNumber);if(row)
return row;row=savedRow;}
return null;}
return row;};Spry.Data.DataSet.prototype.getMultiFilterFunc=function()
{var func=Spry.Data.DataSet.multiFilterFuncs[this.getFilterMode()];return func?func:Spry.Data.DataSet.multiFilterFuncs["and"];};Spry.Data.DataSet.prototype.addFilter=function(filterFunc,doApplyFilters)
{if(!this.hasFilter(filterFunc))
{if(!this.activeFilters)
this.activeFilters=[];this.activeFilters.push(filterFunc);}
if(doApplyFilters)
this.applyFilters();};Spry.Data.DataSet.prototype.removeFilter=function(filterFunc,doApplyFilters)
{var filters=this.activeFilters;if(filters)
{var numFilters=filters.length;for(var i=0;i<numFilters;i++)
{if(filters[i]==filterFunc)
{this.activeFilters.splice(i,1);if(doApplyFilters)
this.applyFilters();return;}}}};Spry.Data.DataSet.prototype.removeAllFilters=function(doApplyFilters)
{var filters=this.activeFilters;if(filters&&filters.length>0)
{this.activeFilters=[];if(doApplyFilters)
this.applyFilters();}};Spry.Data.DataSet.prototype.getFilters=function(filterFunc)
{if(!this.activeFilters)
this.activeFilters=[];return this.activeFilters;};Spry.Data.DataSet.prototype.applyFilters=function()
{if(this.activeFilters&&this.activeFilters.length>0)
this.filter(this.getMultiFilterFunc());else
this.filter(null);};Spry.Data.DataSet.prototype.hasFilter=function(filterFunc)
{if(!this.activeFilters&&this.activeFilters>0)
{var filters=this.activeFilters;var numFilters=filters.length;for(var i=0;i<numFilters;i++)
{if(filters[i]==filterFunc)
return true;}}
return false;};Spry.Data.DataSet.prototype.getFilterMode=function()
{return this.filterMode?this.filterMode:"and";};Spry.Data.DataSet.prototype.setFilterMode=function(mode,doApplyFilters)
{var oldMode=this.getFilterMode();this.filterMode=mode;if(doApplyFilters)
this.applyFilters();return oldMode;};