FAQ: KDE preview thumbnail

[Rog132]

Plugin

The KDE applications can show a thumbnail for a file if there is a thumb creator plugin installed for the file type.



After installation the plugin need to be enabled.




Searching thumbcreator plugins

From the repositories - with the Muon package manager

The category is KDE and the search term is thumbnail.




From the repositories - with the apt-cache

Apt-get Howto: https://help.ubuntu.com/community/AptGet/Howto
The apt-cache Command: http://debian-handbook.info/browse/s...apt-cache.html
Why not: http://stackoverflow.com/questions/2...en-regular-exp


Example:

:~$ apt-cache search '(.*kde)(.*thumbnail)'
digikam - digital photo management application for KDE
geogebra-kde - KDE integration layer for GeoGebra
kde-thumbnailer-deb - KDE plugin to show thumbnails of Debian package files
kde-thumbnailer-openoffice - KDE plugin to show thumbnails of OpenOffice.org files
kdegraphics-strigi-plugins - transitional package for kdegraphics-related plugins
kdegraphics-thumbnailers - graphics file format thumbnailers for KDE SC
kdesdk-thumbnailers - file format thumbnailers for KDE
kdesdk-thumbnailers-dbg - debugging symbols for kdesdk-thumbnailers
kffmpegthumbnailer - video thumbnailer for KDE
libreoffice - office productivity suite (metapackage)
makexvpics - updates .xvpics thumbnails from the command line
pentobi-kde-thumbnailer - clone of the strategy board game Blokus - KDE thumbnailer
kde-thumbnailer-audiothumbs - a thumbnailer for the audio file art
kde-thumbnailer-epub - a KDE thumbnail generator for the ePub file format.
kde-thumbnailer-chm - a thumbnailer for the chm files
kde-thumbnailer-apk - KDE thumbnailer plugin for Android Application Package files
kde-thumbnailer-moviethumbs - video thumbnail generator for the movies and series
kde-thumbnailer-cb7thumbnails - thumbnail generator for the cb7 comicbook files
kde-thumbnailer-ffmpegthumbs-mattepaint - video thumbnail generator using ffmpeg
kde-thumbnailer-fb2 - thumbnail generator for the FictionBook (fb2) files
kde-thumbnailer-ffmpeg-real-thumbs-mattepaint - video thumbnail generator using real ffmpeg
kde-service-menu-face-to-thumbnail - a kde servicemenu to fix video thumbnails
kde-thumbnailer-wmf - a thumbnailer for the wmf files

From the repositories - with the aptitude

Ubuntu Aptitude survival guide: https://help.ubuntu.com/community/AptitudeSurvivalGuide

Aptitude user's manual: http://aptitude.alioth.debian.org/doc/en/
Few picks
Command-line reference: https://aptitude.alioth.debian.org/doc/en/rn01re01.html
Search term reference: https://aptitude.alioth.debian.org/d...h02s04s05.html

Example:

:~$ aptitude search '?architecture(amd64) ?section(kde) ?description(thumbnail)'

i   ffmpegthumbs                                     - video thumbnail generator using ffmpeg                     
p   geogebra-kde                                     - KDE integration layer for GeoGebra                         
i   kde-thumbnailer-apk                              - KDE thumbnailer plugin for Android Application Package file
i   kde-thumbnailer-audiothumbs                      - a thumbnailer for the audio file art                       
i   kde-thumbnailer-cb7thumbnails                    - thumbnail generator for the cb7 comicbook files            
i   kde-thumbnailer-chm                              - a thumbnailer for the chm files                            
i   kde-thumbnailer-deb                              - KDE plugin to show thumbnails of Debian package files      
i   kde-thumbnailer-epub                             - a KDE thumbnail generator for the ePub file format.        
i   kde-thumbnailer-fb2                              - thumbnail generator for the FictionBook (fb2) files        
i   kde-thumbnailer-ffmpeg-real-thumbs-mattepaint    - video thumbnail generator using real ffmpeg                
i   kde-thumbnailer-ffmpegthumbs-mattepaint          - video thumbnail generator using ffmpeg                     
i   kde-thumbnailer-moviethumbs                      - video thumbnail generator for the movies and series        
i   kde-thumbnailer-openoffice                       - KDE plugin to show thumbnails of OpenOffice.org files      
i   kde-thumbnailer-wmf                              - a thumbnailer for the wmf files                            
p   kdegraphics-mobipocket                           - mobipocket plugins for Strigi indexing and thumbnails      
i   kdegraphics-thumbnailers                         - graphics file format thumbnailers for KDE SC               
p   kffmpegthumbnailer                               - video thumbnailer for KDE                                  
i   mplayerthumbs                                    - video thumbnail generator using mplayer                    
p   pentobi-kde-thumbnailer                          - clone of the strategy board game Blokus - KDE thumbnailer

Additional plugins from the KDE.Apps.org

Searching with the 'thumbnail': http://kde-apps.org/content/search.p...ense=99&page=0




Making plugins

The KDE is using freedesktop specifications: http://freedesktop.org/wiki/Specifications/ and there the specification for storing file thumbnails: http://specifications.freedesktop.or...ec-latest.html .

KDE4: http://api.kde.org/4.x-api/kdelibs-a...mbCreator.html

KF5: http://api.kde.org/frameworks-api/fr...mbCreator.html


More

KubuntuGuide: http://ubuntuguide.org/wiki/K_All_Versions

Enabling PDF preview in Dolphin: http://askubuntu.com/questions/86338...iew-in-dolphin
Preview KDE: http://askubuntu.com/questions/12505...k-look-for-kde

Video Previews: https://www.kubuntuforums.net/showth...Video-Previews
how to: video file preview in Dolphin: https://www.kubuntuforums.net/showth...iew-in-Dolphin