Bug 179439

Summary: Rotation or flip do not update internal thumbnail
Product: [Applications] digikam Reporter: Philippe <pmiossec>
Component: Plugin-Bqm-FlipAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 0.2.0
Sentry Crash Report:
Attachments: digiKam and Dolphin thumbnail view

Description Philippe 2009-01-03 01:27:11 UTC 
Version:            (using KDE 4.1.3)
OS:                Linux
Installed from:    Fedora RPMs

When you do a lossless transformation like a rotation or a flip on a jpg file, the internal thumbnail is not processed to. So the thumbnail doesn't represent the image anymore.

That's not very important into digikam because this internal thumbnail is not used at all by digikam but other software using this thumbnail (gwenview, dolphin and surely others) display a wrong one.

Bug detected on a fedora 10 with digikam 0.10 beta 7
Comment 1 caulier.gilles 2009-01-09 15:06:43 UTC 
I cannot confirm that for Rotate and flip. code is here :

http://lxr.kde.org/source/extragear/graphics/kipi-plugins/jpeglossless/jpegtransform.cpp#348

The only action where Exif thumbnail is not updated is to convert to grayscale

Sound like a cache problem in konqueror, dolphin and gwenview. Please clean your ~./thumbnails after a rotation/flip and try again...

Gilles Caulier
Comment 2 caulier.gilles 2009-01-09 15:16:50 UTC 
Created attachment 30052 [details]
digiKam and Dolphin thumbnail view
Comment 3 caulier.gilles 2009-01-09 15:22:07 UTC 
SVN commit 908250 by cgilles:

JPEGLossLess kipi-plugin from trunk:
use metadata settings from kipi host
fix Exif thumbnail update with Convert to grayscale
CCBUG: 155593
BUG: 179439


 M  +10 -44    actionthread.cpp  
 M  +4 -4      actionthread.h  
 M  +29 -6     convert2grayscale.cpp  
 M  +5 -4      convert2grayscale.h  
 M  +8 -7      imageflip.cpp  
 M  +5 -4      imageflip.h  
 M  +8 -6      imagerotate.cpp  
 M  +5 -4      imagerotate.h  
 M  +12 -3     jpegtransform.cpp  
 M  +23 -25    jpegtransform.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=908250