// ===========================================================================
// 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.
// ===========================================================================
// ===========================================================================
//
//  Procedure Name:
//      texLayoutAlong
//
//  Description:
//      UV workflow function used for snap UV shells to the default UV range
//      boundaries (9 $directions - top, bottom left, center, right, etc...)
//
//  Input Arguments
//      direction            - String   - What cardinal direction to snap to.
//
//  Return Value:
//      None.
//
//  Notes:
//  This script is part of the implementation of Nightshade UV Editor into
//  Autodesk Maya. For testing purposes, keep the source commands at the top
//  and then just source this entire script.
//
// ===========================================================================


global proc texLayoutAlong(int $type)
{
	// Get original selection and retrieve the selected UV shells
	string $selection[] = `ls -selection`;
	string $compSelType = `getComponentMask`;

	string $selectObj[] = `ls -objectsOnly -selection`;
	for ($o in $selectObj)
	{
		string $selectComponent[] = `ls -sl $o`;
		polyLayoutUV
			-constructionHistory true
			-flipReversed true
			-gridU 1
			-gridV 1
			-layout 1
			-layoutMethod 1
			-percentageSpace 0.2
			-rotateForBestFit 1
			-scale 1
			-separate 0
			$selectComponent
		;
	}

	// Along V
	if ($type == 1)
	{
		polySelectBorderShell(0);
		polyEditUV 
			-angle 90
			-pivotU 0.0
			-pivotV 0.0
		;
		texAlignShells("uMin", {}, "");
		float $uvBox[] = `polyEvaluate -boundingBoxComponent2d`;
		float $offset = $uvBox[1] - $uvBox[0];
		polyEditUV
			-uValue $offset
		;
	}

	//restore the original component mask	
	setComponentMask($compSelType); 

	//select the original selection
	select -replace $selection;
}