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Nesting SWT Tables [message #638804]

Fri, 12 November 2010 16:03

Arun Kumar Simhadri

Messages: 5
Registered: November 2010
Location: Cedar Rapids

Junior Member

Hi All,

A new discussion for SWT Tables nesting. I need to implement such a table as part of my current work and I am not sure how to start.

Thanks,
Arun

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Re: Nesting SWT Tables [message #638805 is a reply to message #638804]

Fri, 12 November 2010 16:05

Arun Kumar Simhadri

Messages: 5
Registered: November 2010
Location: Cedar Rapids

Junior Member

I am planning to implement a Tree Table in which if one of the node is expanded, the expanded node should display a inner table with it's own Column header.

Any inputs are welcome!!!

Thanks,
Arun

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Re: Nesting SWT Tables [message #639446 is a reply to message #638805]

Tue, 16 November 2010 14:48

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

You would simplify your task greatly if you could change your UI to have a
separate Table beside the Tree, and change the Table's content as needed
whenever a TreeItem was selected.

In the absence of this, trying to give an swt TreeItem the appearance of a
child Table is likely to be painful. The basic approach would be to give
the TreeItem enough empty child items to reserve the appropriate amount of
vertical space for the child table, and then when that TreeItem is expanded
by the user, you would put an ON_TOP Shell containing the Table at the
position where the TreeItem's first child would appear. This may work
reasonably well for a simple Tree, but once details come up like making the
Table's Shell adjust to Tree scrolling and clipping, you may be wishing you
hadn't gone down this route.

Nebula's Grid control may be a bit more helpful with some of this, I'm not
sure. If you want to investigate this see
http://eclipse.org/nebula/widgets/grid/grid.php .

Grant

"Arun Kumar Simhadri" <ArunSimha@hcl.in> wrote in message
news:ibjocj$oga$1@news.eclipse.org...
> I am planning to implement a Tree Table in which if one of the node
> is expanded, the expanded node should display a inner table with it's own
> Column header.
> Any inputs are welcome!!!
>
>
> Thanks,
> Arun
>

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Re: Nesting SWT Tables [message #639532 is a reply to message #639446]

Tue, 16 November 2010 19:43

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Am 16.11.10 15:48, schrieb Grant Gayed:
> You would simplify your task greatly if you could change your UI to have a
> separate Table beside the Tree, and change the Table's content as needed
> whenever a TreeItem was selected.
>
> In the absence of this, trying to give an swt TreeItem the appearance of a
> child Table is likely to be painful. The basic approach would be to give
> the TreeItem enough empty child items to reserve the appropriate amount of
> vertical space for the child table, and then when that TreeItem is expanded
> by the user, you would put an ON_TOP Shell containing the Table at the
> position where the TreeItem's first child would appear. This may work
> reasonably well for a simple Tree, but once details come up like making the
> Table's Shell adjust to Tree scrolling and clipping, you may be wishing you
> hadn't gone down this route.
>
> Nebula's Grid control may be a bit more helpful with some of this, I'm not
> sure. If you want to investigate this see
> http://eclipse.org/nebula/widgets/grid/grid.php .
>

I'm afraid that beside allowing cells to be off different height Grid is
also not a solution. There has been a widget part of nebula named CTree
IIRC but it only worked on Linux AFAIK.

I can only second Grant to say you should probably rethink your UI-Concept.

Tom

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