// ===========================================================================
// 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 art3dPaintSetPaintAttr()
// 
// Description:
//		Checks if the current paintable attr is a valid attr.
//		If not, it sets the current paint attr to "color"
//		which is a valid one for all the shaders.
//
{
	string  $paintAttr = eval("art3dPaintCtx -q -painttxtattrname `currentCtx`");
	string	$validPaintAttr = art3dPaintGetPaintableAttr();

	string  $validAttrArray[];
	int     $numbAttr = `tokenize $validPaintAttr $validAttrArray`;

	for ( $attr in $validAttrArray ) {
		if ( $attr == $paintAttr ) {
			return;			// everything is OK, we can return
		}	
	}

	// If we got here we did not find the curr paint attr on the 
	// valid paint attr list, so to be safe we set it to "color".
	// 
	art3dPaintCtx -e -painttxtattrname "color" `currentCtx`;
	
	// If the option box is already opened, make sure the 
	// menu is updated as well.
	if (`optionMenuGrp -ex artPaintAttrOptionMenu`) {
		optionMenuGrp -e -v "color" artPaintAttrOptionMenu;
	}
}