[Zope3-dev] Re: [AdaptersForMenuItems] Disabling and menu item icons

[Garrett Smith]

Jim Fulton wrote:
> Caseman wrote:
>> I'm assuming that menus could also be used to define toolbars, which
>> would require icons. There is also a convention in modern GUIs for
>> many menus to include icons.
> 
> Good point.
> 
>> Perhaps both of these should be configured with the view rather than
>> with the menu itself. Either way I think both are pretty important to
>> support.
> 
> I think it makes the most sense to configure these are part of the menu
> item definition.  This can be an additional feature of the browser menu 
> item
> type.

It seems to me that icons are strongly tied to the view capabilities and 
configuration and should not be a part of a general menu item 
definition. E.g.

- What size are the icons -- menu toolbars support 16x16 (small) and 
32x32 (large) displays.

- As pointed out in another message, disabled icons are usually dimmed. 
These should be explicitly configurable in cases where the UI cannot 
apply an image trasnform (e.g. most browsers).

- Occassionally, additional icons are specified for rollover event -- 
e.g. to depict raised or pressed states.

I see menu icons as an application of adapters. E.g.

   IMenuItemIconDefault (or just IMenuItemIcon)
   IMenuItemIconDisabled
   IMenuItemIconRaised
   IMenuItemIcodLowered

I suppose the different sizes could be provided via multi-way 
adaptation, with the size passed as a second object.

  -- Garrett