The highlight() method

[Benoit Bezaire <benoit@itedo.com>]

Hi,

  Itedo noticed that the highlight() method on the Picture interface
  may be problematic.

  The prototype is:
  void highlight(in WebCGMNodeList nodes, in boolean state);

  The method works for the following script:
  var list = pic.getAppStructuresByName("listToHighlight");
  pic.highlight( list, true );

  however, the following code is invalid:
  var aps = pic.getAppStructureById("apsToHighlight");
  pic.highlight( aps, true );

  getAppStructureById returns a WebCGMNode, not a WebCGMNodeList, doh!

  Here are some options that we have:
  i) leave it like this, fix in a later version (2.1) but that means
  WebCGM 2.0 users will not be able to highlight a single Application
  Structures.

  ii) change getAppStructureById to return a WebCGMNodeList. This
  however will force script writers to write:
  var id = pic.getAppStructureById("myID");
  if( id.count > 0 )
  {
     id.item(0). etc...
  }
  every time they want to access and APS by Id.

  iii) have two highlight methods. One that is called highlight(
  takes a WebCGMNode ) and one called highlightMany( takes a
  WebCGMNodeList). It wouldn't look very good in the spec, but hey, it
  would work.

  iv) introduce some sort of WebCGMNode.makeList() method that
  would return a WebCGMNodeList from a WebCGMNode. This approach would
  need more thoughts, as it could complicate the 'live' node
  implementation of our DOM.

  Thoughts,

-- 
 Benoit   mailto:benoit@itedo.com