[nebula-dev] draw2d/gc cells? (Andr? Dietisheim)

["David J. Orme" <djo@xxxxxxxxxxxxxxxxxxxxxxxxx>]

Ahhh, I understand.  :-)  I think. :-D

The main benefits are:

1) To not have any distinction between view/edit mode by default.  If you want that distinction, you can program it.  But you don't have to have it if you don't want it.  I've seen situations where if you click wrong, the focus goes to the table control behind the cell editor.  If you do away with cell editors, this no longer is an issue.

2) The event model allows you to implement a semantic where you validate and save data on row focus lost rather than on focus lost of each control.  This can be important in client-server situations to limit the amount of network traffic induced by interactive editing.


Regards,

Dave

----------------------------------------------------------------------

Message: 1
Date: Mon, 19 Mar 2007 21:05:15 +0100
From: Andr? Dietisheim <dietisheim@xxxxxxxxx>
Subject: Re: [nebula-dev] [CompositeTable] draw2d/gc cells?
To: Nebula Dev <nebula-dev@xxxxxxxxxxx>
Message-ID: <1174334715.6267.21.camel@pmobilead>
Content-Type: text/plain; charset=utf-8

Hi Dave

sorry for not being precise enugh in my last posting:
I can't see any benefits in using composite table for the classic
database-browser use cases (large table, takes approx half the screen).
The only benefit I can spot is being able to mix real controls with
'draw2d/gc-cells' (controls in all cells does not scale sufficiently a
table without switch label/celleditor does not scale enough in big
tables). I wonder if you see any other benefits. I'd continue my efforts
towards this direction if I see real gains.

Regards
Andr�� 

On Mon, 2007-03-19 at 10:36 -0500, David J. Orme wrote:
> Sure, you can do Draw2d or canvas-drawn cells.  Anything you can do in
> a custom SWT control you can do in a CompositeTable cell.
> 
> 
> Regards,
> 
> Dave Orme
> ------------------------------
> 
> Message: 7
> Date: Sat, 17 Mar 2007 12:59:39 +0100
> From: Andr? Dietisheim <dietisheim@xxxxxxxxx>
> Subject: Re: [nebula-dev] [CompositeTable] draw2d/gc cells?
> To: Nebula Dev <nebula-dev@xxxxxxxxxxx>
> Message-ID: <1174132779.4988.8.camel@pmobilead>
> Content-Type: text/plain; charset=UTF-8
> 
> Hi Dave
> 
> I unfortunately had to drop my plan to use compositetable in my client
> and try to find a solution to the bugs in the current virtual
> tableviewer implementation. My customer change is 2 weeks ahead and I
> am
> thinking to the further improvements of the compositetable to push
> performance limits further.
> I started analyzing your dayeditor and I am thinking of drawing cells
> not as controls but using gc/draw2d. Thinking of this stuff and
> comparing to the latest jface-wrapper to the native table I think that
> there's not much benefit to use compositetable as table replacement
> for
> the 'classic' cases. The only one I can detect is that it would be
> possible to mix controls with 'gc-cells' (ex. classic label/image
> cells
> draw by gc/draw2d and checkbox-controls. What's you opinion? 
> 
> Regards
> Andr������
> 
> 
> !DSPAM:45fea116176512139619397! 
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