// SpryDataExtensions.js - version 0.4 - Spry Pre-Release 1.6.1
//
// Copyright (c) 2007. Adobe Systems Incorporated.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// 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.
//   * Neither the name of Adobe Systems Incorporated nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

Spry.Data.DataSet.multiFilterFuncs={};Spry.Data.DataSet.multiFilterFuncs.and=function(ds,row,rowNumber,filters)
{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,filters)
{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()];if(!func)
func=Spry.Data.DataSet.multiFilterFuncs["and"];var filters=this.activeFilters;return function(ds,row,rowNumber){return func(ds,row,rowNumber,filters);};};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;};