I just tried the examples included in the tar file that I downloaded from the website, (I never used QT before), so it's built-in image handler.
>From what you said, I guess it is possible that I can wrap my xlib implementation in a QWidget subclass, and loading time would be the same as before. Is that right? ----- Original Message ----- From: "Aaron J. Seigo" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, July 07, 2003 2:13 PM Subject: Re: (clug-talk) Need your guys advice > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Monday 07 July 2003 02:33, Jane Young wrote: > > We used Xlib to create a window showing the image pretty fast. But now, we > > need to add some widgets like menu, scroll bar, printing support etc to the > > image window which Xlib doesn't have. > > > > Which toolkit should I use? I tried some qt/x11 examples, like showimg. > > It's slow even for a 100k image. > > were you using Qt's built-in image handlers, or were you using your own image > handler? the reason i ask is that Qt's built-in image handlers are known to > be slow and inefficient. there is work to improve that, but it isn't > optimized for large image handling right now ... i'm guessing you just used > the default showimg app as-is... > > in any case, there is probably no reason why you can't take your Xlib > implementation and wrap it in a QWidget subclass and get the best of all > worlds. after all, that's what all QWidgets do at the lowest level: use raw X > calls via QPainter to draw things. > > btw, i do Qt consulting if anyone's interested ;-) > > wow. now THERE'S a shameless plug if i ever saw one. > > - -- > Aaron J. Seigo > GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA EE75 D6B7 2EB1 A7F1 DB43 > > KDE: The 'K' is for 'kick ass' > http://www.kde.org http://promo.kde.org/3.1/feature_guide.php > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.2-rc1-SuSE (GNU/Linux) > > iD8DBQE/CdRU1rcusafx20MRAiE3AJ9okmpGXxBgT5ZvF5PMjejqbkkj/ACfUMz1 > HBTN4S/9BIe56ZHk3a1HKXU= > =izb2 > -----END PGP SIGNATURE-----
