Bug 194875

Summary:	Port from (deprecated) ImLib to Qt QImage
Product:	[Applications] kuickshow	Reporter:	Christoph Feck <cfeck>
Component:	general	Assignee:	Carsten Pfeiffer <pfeiffer>
Status:	RESOLVED UNMAINTAINED
Severity:	wishlist	CC:	cfeck
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Unspecified
Latest Commit:		Version Fixed In:

Description Christoph Feck 2009-06-01 16:01:09 UTC

Version:            (using Devel)
Installed from:    Compiled sources

Kuickshow depends on very old ImLib package (requiring old gtk 1 libs). It also has X11 dependencies, which prevent it from using under other platforms.

If you want, I can write the missing color adjustment code for QImage. When there are more features that required ImLib, please discuss them here.

Comment 1 Carsten Pfeiffer 2009-06-01 20:23:19 UTC

Imlib actually doesn't require gtk at all, just plain Xlib. See for yourself with 
ldd `which kuickshow` | grep gtk
There is also a variant of Imlib that does use (and therefor depend on) gtk 1.2, though, but that's not the one kuickshow uses. I agree about the X11 dependencies, though.

In addition to just color adjustment, Imlib also implements the rotation, flipping, zooming, but QImage should be able to do that as well.

The sole reason for using Imlib was/is its performance. Last I measured (that's probably about 10 years ago), Imlib beat everyone and everything at image loading and rendering. I've wanted to create a new benchmark for a while now, comparing Imlib1, Imlib2, Qt, and maybe gdkpixbuf for completeness, but I haven't found the time yet. If Qt is still that much slower than it was back then, I'd rather stay with Imlib, because the speed of image displaying really is what kuickshow is about.

So: if you want to help right now, then you could help with the benchmark, because that should be done first. Otherwise, please wait until I've found the time to do so.

In fact, I'd be even happy to port away from Imlib, because that would even allow for some major cleanup of kuickshow.

Comment 2 Christoph Feck 2015-02-06 12:32:30 UTC

Thanks for your bug report or feature request.

The Kuickshow application is no longer maintained, and all open tickets are now closed.
See also http://websvn.kde.org/?view=revision&revision=1383834