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Calculate the number of visible items in a Table [message #443760]

Thu, 30 September 2004 09:54

Ruben HesselbÃ¦k

Messages: 14
Registered: July 2009

Junior Member

I have a Shell with a table inside and i need to calculate the number of
items it can hold that won't produce a vertical scrollbar, whenever it is
resized, but I just can't get it to work.
The problem is getting the height of the table.

If have tried a couple of methods
table.getBounds().height, but that number is way off when the shell is
resized.
table.getClientArea().height, still not right.

The only way if have got it top work is this very ugle hack, which is not
very crossplatform compliant.
((shell.getClientArea().height - 28) - table.getHeaderHeight()) /
table.getItemHeight()

I was hoping someone in here had a better way of doing it.

/Ruben Hesselbaek

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Re: Calculate the number of visible items in a Table [message #443767 is a reply to message #443760]

Thu, 30 September 2004 14:29

Randy Hudson

Messages: 123
Registered: July 2009

Senior Member

Have you tried calling computeBounds on a table with nothing but the
headers?

"Ruben Hesselb

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Re: Calculate the number of visible items in a Table [message #443817 is a reply to message #443767]

Fri, 01 October 2004 12:45

Ruben HesselbÃ¦k

Messages: 14
Registered: July 2009

Junior Member

I have tried calling computeSize(SWT.DEFAULT, SWT.DEFAULT), since i can't
find computeBounds, and it is still not correct.
The problem is that computeSize() just returns the size needed to show the
table with all the current elements, and since the table is allready full,
then the size will be wrong.
If i make the shell larger, the returned size will be too small, because i
need to add TableItems to fill the table.
If i make the shell smaller, the returned size will be too large, because i
need to remove TableItems from the table.
I need a method that tells me the size of the Table after the resize.

/Ruben

"Randy Hudson" <none@us.ibm.com> wrote in message
news:cjh501$1v7$1@eclipse.org...
> Have you tried calling computeBounds on a table with nothing but the
> headers?
>
> "Ruben Hesselb

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