Re: [e4-dev] Customizable toolbar ?

[Eric Moffatt <emoffatt@xxxxxxxxxx>]

I'll be a bit more definitive...yes,
it will...;-).

Paul's right that it's a function of
ensuring that the renderer has the appropriate listeners (bindings) to
correctly keep the 'on screen' UI in synch with -all- model changed. The
default (SWT) renderer will be able to do this, Folks who write their own
presentations (new part factories...) would have to ensure that their bindings
are equally capable if they want the resulting presentation to be properly
functional.

Once the model/UI synch'ing is correct
then it's a matter of determining the 'meta' UI (Ed should like that one...;-),
the UI we want to use to modify the 'live' UI model. Unfortunately it becomes
somewhat tricky here for technical reasons, many of the 'obvious' UI mechanisms
such as dragging ToolbarItems aren't available directly through SWT (even
more so for menus/menuitems) due to platform constraints. On the other
hand a simple tree view for the structure and a property view is easy and
intuitive (if not as elegant) and allows DnD, multiple selection etc, not
just for menus and tb's but for stacks, views, trim as well.

Creating a 'direct manipulation' UI
(akin to the current one we have for moving views/stacks in the current
eclipse) is possible but would appear to require that at least some of
the editing operations to be done in a model fashion; consider what multiply
'selecting' UI elements in the running environment implies (selection feedback,
[Ctrl-]click to select is out...).

The beauty of all this is that it -doesn't
matter- what the 'meta' UI is, all it's doing in reality is manipulating
the UI model. Whether the 'Remove toolitem 'x' from tb 'y' / add 'x' to
tb 'z' at index 2' change comes from a DnD operation in a tree or through
direct manipulation of some sort (or even through the execution of some
JScript snippet !!) is irrelevant.

Defining the 'meta' UI would be a great
idea for a separate thread...anyone interested?

Eric

Paul Webster <pwebster@xxxxxxxxxxxxxxxxxxx>
Sent by: e4-dev-bounces@xxxxxxxxxxx

03/19/2009 08:54 AM

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Subject	Re: [e4-dev] Customizable toolbar ?

2009/3/19 Oberhuber, Martin <Martin.Oberhuber@xxxxxxxxxxxxx>:
> Would that be simplified by modeled workbench?

It could be ... but it would depend more on the renderer than the
model.  The renderer would need to hook itself up correctly to respond
to add/remove/move events in the model.  The the renderer (or
something else at the widget level) would need to provide the ability
to respond to user events and update the model.

PW

-- 
Paul Webster
Hi floor.  Make me a sammich! - GIR
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