Results 1 to 2 of 2

Thread: Very slow Thai font rendering

  1. #1
    Join Date
    Jun 2012
    Posts
    1
    Qt products
    Qt4
    Platforms
    Windows

    Default Very slow Thai font rendering

    Hello Everybody,

    I have used Qt 4.8.1 with MS7 and built many applications. I am a Thai and so some application needs Thai language support. But,when I build application that have to support Thai language, Qt rendering is very slow and sometime end up with not responding. You could try http://qt-project.org/doc/qt-4.8/xml-rsslisting.html with this RSS http://rssfeeds.sanook.com/rss/feeds...news.index.xml click 'fetch' button and then try to resize the window. You will see rendering is quite slow. Could I work around this problem?

    Thank you in advanced

  2. #2
    Join Date
    Mar 2009
    Location
    Brisbane, Australia
    Posts
    7,546
    Thanks
    13
    Thanked 1,578 Times in 1,507 Posts
    Qt products
    Qt4 Qt5
    Platforms
    Unix/X11 Windows
    Wiki edits
    17

    Default Re: Very slow Thai font rendering

    I don't see any problems with the Thai rendering or window resizing in that example against on that site on Qt 4.8.1 on Linux.

    On Windows XP with Qt 4.8.0 and MingW I see massive window resizing issues that are not present when viewing the English language default feed. So, it seems Windows specific but not necessarily Qt's fault. The fonts characters look Thai to me. There are plenty of Thai font related issues in the Qt bug tracker but I did not see one that looked quite like this during a quick scan; you might want to cast a Thai-reading eye over some of them. The problem may not be limited to Thai or it may be a "feature" of the actual font Windows uses by default.

Similar Threads

  1. Font rendering issue
    By yogeshgokul in forum Qt for Embedded and Mobile
    Replies: 5
    Last Post: 3rd May 2016, 14:31
  2. Replies: 8
    Last Post: 7th November 2012, 19:20
  3. Replies: 1
    Last Post: 28th March 2012, 02:43
  4. Fast Font Rendering
    By photo_tom in forum Qt Programming
    Replies: 2
    Last Post: 18th March 2010, 04:15
  5. Font rendering on Mac
    By menab0t in forum Qt Programming
    Replies: 0
    Last Post: 19th May 2009, 12:21

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide.