// ===========================================================================
// Copyright 2018 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk license
// agreement provided at the time of installation or download, or which
// otherwise accompanies this software in either electronic or hard copy form.
// ===========================================================================
global proc updateAEshowAllButton()
//
//	Description:
//		Enable the AEshowAllButton if at least one filter is toggled off, else
//	disable it.
//
{
	string $filterTypes[];
	if( `optionVar -exists activeAEShowFilterTypes` ){
		$filterTypes = `optionVar -query activeAEShowFilterTypes`;
	}
	int $numFilterTypes = size($filterTypes);

	int $filterStates[];
	if( `optionVar -exists activeAEShowFilterStates` ){
		$filterStates = `optionVar -query activeAEShowFilterStates`;
	}
	int $numFilterStates = size($filterStates);
	if( $numFilterStates > $numFilterTypes ){
		// Somehow, we have more states than types. Ignore the extra states.
		//
		$numFilterStates = $numFilterTypes;
	}
	int $someOff = false;
	int $filterIndex = 0;
	while( $filterIndex < $numFilterStates ){
		if( !($filterStates[$filterIndex]) ){
			$someOff = true;
		}
		$filterIndex++;
	}
	if( `button -exists "AEshowAllButton"` ){
		button -e -enable $someOff "AEshowAllButton";
	}
}