/*
toggleShadedOnSelected.mel
created by Alex Hogan - www.alexhogan.com - in July, 2003

This script should toggle the shading override on any model surface.
Problems - if the object is in a layer, that attribute is already controlled.

*/




proc string getShape( string $xform )
{
  string $shapes[];
  
  $shapes[0] = $xform;
  
  // If given node is not a transform, assume it is a shape 
  // and pass it through.
  if ( "transform" == `nodeType $xform` )
  {
    $shapes = `listRelatives -fullPath -shapes $xform`;
  }
  
  return $shapes[0];
}


proc string[] getSelectedMeshes()
{
  string $selectedMeshes[];
  int $numSelectedMeshes = 0;

  string $select[] = `ls -sl`;
  string $shape;

  for ( $node in $select )
  {
    // Get the shape node
    $shape = getShape( $node );
    
    // Assert that this shape node is indeed a mesh or surface
    if ( ( "mesh"  == nodeType ( $shape ) ) || ( "subdiv"  == nodeType ( $shape ) ) )
      $selectedMeshes[ $numSelectedMeshes++ ] = $shape;    
  }

  // Result is an array of all meshes included in 
  // current selection list.
  return $selectedMeshes;
}



global proc toggleShadedOnSelected (  ) {

print "\n";

//get list of selected surfaces
string $selectedMeshes[];
$selectedMeshes = getSelectedMeshes();


//run through the list of selected meshes and toggle their shading on or off
for ($mesh in $selectedMeshes) {

	// set override shading to on
	eval ( "setAttr " + $mesh + ".overrideEnabled 1" );
	
	
	// store the current state, and toggle it
	string $isSet = eval ( "getAttr " + $mesh + ".overrideShading" );
	
	if ( $isSet ) eval ( "setAttr " + $mesh + ".overrideShading 0 ");
	
	else  eval ( "setAttr " + $mesh + ".overrideShading 1");
	
	}
      
}