Article:		Creating Toolbars for Mac OS X
Subject:		A few questions
Date:		2002-03-18 16:49:28
From:		michele
1 - I've searched how to dim the icon when the toolbar item validate method returns no, as it is in Mail for example. Any idea how to do that? 2 - If I would to have the search item (hence the corresponding textfield) disabled when there is no record, would I subclass NSToolbarItem to override the validate method? Hence changing completely the actual implementation? Michele

Showing messages 1 through 4 of 4.

• A few questions
  2002-03-22 12:24:33  xyzzy-xyzzy [View]
  
  
  I don't understand how to disable the search item either. I've tried changing this function (from the article) to this:
  
  - (BOOL)validateToolbarItem:(NSToolbarItem *)theItem
  {
  return NO;
  }
  
  and it disables the add and remove, but not the search item (or the customize button, but that makes sense).
  
  Is there another function I just don't know about yet?

• A few questions
  2002-03-20 13:07:05  joaquimlopes [View]
  
  
  Michele,
  
  just override the validateToolbarItem in your NSWindowController and return NO when there is no record. Something like this:
  
  - (BOOL) validateToolbarItem: (NSToolbarItem *) toolbarItem
  {
  return [[self document] numberOfRecords] > 0;
  }
  
  Hope this helps.
  
  Joaquim Lopes
• A few questions
  2002-03-20 20:21:33  michele [View]
  
  
  Hey Joaquim,
  
  Problem is my application is not document based.
  
  Michele
• A few questions
  2002-03-23 07:54:14  joaquimlopes [View]
  
  
  There's no problem. Just replace [[self document] numberOfRecords] with the object that returns the number of records such as [myRecordArray count] or whatever.
  
  Joaquim Lopes