| Dynamicly sizing scrolled content [message #990920] |
Fri, 14 December 2012 21:53 |
 Zac Aj
Messages: 1
Registered: December 2012 |
Junior Member |
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I'm working on a simple twitter client, and I've put a composite(listComposite) with a RowLayout in a ScrollableComposite with a FillLayout. I'm then placing Composites(tweetComposite) with FormLayouts in the RowLayout, each of them containing a tweet.
Right now I've got a weird problem where the list scrolls very slowly when I use the mouse wheel. It still works just fine if I drag the scroll bar. I don't know what could be causing it, but my only guess would be that something is getting messed up because the size of the content in the ScrollableComposite is changing, and maybe I'm not calling some update function I should be? (I manually call setSize for the tweet composite and the listComposite, as well as calling layout() on tweetComposite and the ScrollableComposite)
On top of that, trying to keep the tweets ordered properly in the list and dealing with the list getting bigger and bigger if the client was left open for a long time seems like it would require a lot of manual and complicated optimization. I was coding for Android a while ago, and they have a special ListWidget that handles deleting the Views of whatever parts of the list go off screen, as well as ordering all the Views correctly, etc. Is there any better way to handle this in SWT than what I'm currently doing?
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