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many images in jface tableviewer [message #639223]

Mon, 15 November 2010 16:46

fran81 Missing name

Messages: 27
Registered: November 2010

Junior Member

I'm trying to show a jface scrollable tableviewer with a large number of images (>10000).
I have followed the example in this tutorial to build the table
http://www.vogella.de/articles/EclipseJFaceTable/article.htm l

Looks like if I try to do so I get a "no more handles" error, which does not occur if the number of images does not go beyond a certain threshold.

What is the way to load only images that are actually displayed? I.e. one only sees what is on the screen, and not images that have not been scrolled yet?

Thank you

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Re: many images in jface tableviewer [message #639265 is a reply to message #639223]

Mon, 15 November 2010 19:01

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

You need to clean them up when they go out of scope. The problem is that
ther's not really a reliable way to do it [1].

The only clean solution I know currently is to use Nebula-Grid which
allows you to track the currently visible cells and so you can dispose
invisible images.

Tom

[1] http://tomsondev.bestsolution.at/2007/01/05/what-items-are-v isible-in-tabletree/

Am 15.11.10 17:46, schrieb fran81:
> I'm trying to show a jface scrollable tableviewer with a large number of
> images (>10000). I have followed the example in this tutorial to build
> the table http://www.vogella.de/articles/EclipseJFaceTable/article.htm l
>
> Looks like if I try to do so I get a "no more handles" error, which does
> not occur if the number of images does not go beyond a certain threshold.
>
> What is the way to load only images that are actually displayed? I.e.
> one only sees what is on the screen, and not images that have not been
> scrolled yet?
>
> Thank you

Report message to a moderator