• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Why is NSTableView scrolling in Cocoa apps so slow?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Why is NSTableView scrolling in Cocoa apps so slow?


  • Subject: Re: Why is NSTableView scrolling in Cocoa apps so slow?
  • From: Andreas Monitzer <email@hidden>
  • Date: Wed, 5 Sep 2001 14:24:12 +0200

On Wednesday, September 5, 2001, at 02:08 , Henk Kampman wrote:

To get started with Cocoa I decided to port an existing Powerplant
application.

Everthing works fine but thumb scrolling speed is incredibly slow compared
to the Carbon Powerplant version running on MacOSX.

Even a simple NSTableView with 1 column and static data scrolls slowly!

It looks as if the actual displayed content has little effect on the
performance so there must be something else going on.

On scroll, NSTableView permanently polls the data source for getting information (count, item at line x). Maybe that method is too slow.

andy
--
Discussion forthcoming.


  • Follow-Ups:
    • Re: Why is NSTableView scrolling in Cocoa apps so slow?
      • From: Henk Kampman <email@hidden>
References: 
 >Why is NSTableView scrolling in Cocoa apps so slow? (From: Henk Kampman <email@hidden>)

  • Prev by Date: Why is NSTableView scrolling in Cocoa apps so slow?
  • Next by Date: what's difference and relationship between CoreFoundation and Fou ndation framework
  • Previous by thread: Why is NSTableView scrolling in Cocoa apps so slow?
  • Next by thread: Re: Why is NSTableView scrolling in Cocoa apps so slow?
  • Index(es):
    • Date
    • Thread