HOWTO: Thumbnails for OpenOffice.org 2 files

**minio** · October 15th, 2005

This also works for OOo1 files created or altered with OOo2. Beacuse OOo2 saves thumbnail of document into created file all what is needed is to extract the image a save it with right name

So first create file named ooo2-thumbnailer in /usr/bin

Code:

sudo gedit /usr/bin/ooo2-thumbnailer

and put in it following code

Code:

#!/usr/bin/python
# released into the public domain http://creativecommons.org/licenses/publicdomain
import zipfile
import sys
import gnomevfs

inURL=gnomevfs.get_local_path_from_uri(sys.argv[1])
outURL=sys.argv[2]

zip=zipfile.ZipFile(inURL,mode="r")
picture=zip.read("Thumbnails/thumbnail.png")
thumbnail=open(outURL,"w")
thumbnail.write(picture)
thumbnail.write("/n")
zip.close()
thumbnail.close()

and save the file.
Now we need to make it executable

Code:

sudo chmod +x /usr/bin/ooo2-thumbnailer

The next step is to tell Gnome how to use this thumbnailer. So create file ooo2.schemas in /usr/share/gconf/schemas

Code:

sudo gedit /usr/share/gconf/schemas/ooo2.schemas

and paste in it following code

Code:

<gconfschemafile>
    <schemalist>

        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
     

        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
	<schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
	<schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.formula/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.formula/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.formula/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.formula/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


<schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.writer/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.writer/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.writer/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.writer/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
     

        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.calc/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.calc/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.calc/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.calc/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.draw/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.draw/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.draw/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.draw/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
	
	<schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.math/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.math/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.math/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.math/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
	<schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.impress/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.impress/enable</applyto>
            <owner>ooo2-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>


        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@vnd.sun.xml.impress/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@vnd.sun.xml.impress/command</applyto>
            <owner>ooo2-thumb</owner>
            <type>string</type>
            <default>/usr/bin/ooo2-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>

    </schemalist>
</gconfschemafile>

and save it.
Now there are two ways to start gnome to use this thumbnailer
1) reboot
2) tell gnome to read this file:

Code:

gconftool-2 --install-schema-file /usr/share/gconf/schemas/ooo2.schemas

and restart nautilus

Code:

killall -9 nautilus

**sethmahoney** · October 15th, 2005

Awesome howto, works perfectly! Anyone know if there's a quick/easy way to add a small icon or watermark over the thumbnail?

**OttoDestruct** · October 15th, 2005

Could someone provide a screenshot to show the finished product?

**NeTo** · October 16th, 2005

Originally Posted by OttoDestruct

Could someone provide a screenshot to show the finished product?

Here's a shot of my homework, two Writer files: one with images, and the other one with formulas.

If you decide to try out the thumbnails and don't like the results afterwards, you can roll back by deleting the two files:

Code:

sudo rm /usr/bin/ooo2-thumbnailer
sudo rm /usr/share/gconf/schemas/ooo2.schemas

And then restart Gnome (or nautilus, following minio's instructions).

Btw, thank you minio for the how-to

. The only downside I notice is that Ooo2 generates thumbnails with transparent backgrounds, so they don't look that good if you have set a background in nautilus.

**jd_** · October 30th, 2005

Excellent

Thanks.

**Muffe** · October 31st, 2005

I have followed the instructions perfectly, and I still can't get this to work. Every file is in the right place with the right owner and permissions. Does anyone have a hint?

**Mellon** · February 28th, 2006

yay

is working

**mmcmonster** · June 18th, 2006

Can anyone give me a pointer on how to create a schema for something other than an oasis-document file?

I want to create thumbnails in nautilus for .cbr / .cbz files based on the first image in the files. (.cbr files are just in RAR format, while .cbz files are in ZIP format) The archives will just be a collection of .jpg image files.

**mmcmonster** · June 21st, 2006

Thanks a lot, guys. Also, thanks go out to the folks at comp.lang.python, who helped me write the python code that follows.

Here is the code to create thumbnails for .cbz sequential image archives (usually associated with comical or comix in linux or cdisplay on MSWindows).

Code:

sudo gedit /usr/bin/comical-thumbnailer

Code:

#!/usr/bin/python

import zipfile
import sys
import gnomevfs
import Image
import StringIO

inURL=gnomevfs.get_local_path_from_uri(sys.argv[1])
outURL=sys.argv[2]

zip=zipfile.ZipFile(inURL,mode="r")
jpeglist=[x for x in zip.namelist() if '.jp' in x]
try:
  picture=zip.read(jpeglist[0])
except IndexError:
  print 'No jpeg found'

zip.close() #close the file, since we no longer have need of it
image = Image.open(StringIO.StringIO(picture)) # create image object from file-like object
image.thumbnail((128,128),Image.ANTIALIAS) #create the thumbnail
image.save (outURL, "PNG") #output the file in the proper format

Code:

sudo chmod a+rx /usr/bin/comical-thumbnailer

Code:

sudo gedit /usr/share/gconf/schemas/comical.schemas

Code:

<gconfschemafile>
    <schemalist>
        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@x-cbz/enable</key>
            <applyto>/desktop/gnome/thumbnailers/application@x-cbz/enable</applyto>
            <owner>comical-thumb</owner>
            <type>bool</type>
            <default>true</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
        <schema>
            <key>/schemas/desktop/gnome/thumbnailers/application@x-cbz/command</key>
            <applyto>/desktop/gnome/thumbnailers/application@x-cbz/command</applyto>
            <owner>comical-thumb</owner>
            <type>string</type>
            <default>/usr/bin/comical-thumbnailer %u %o</default>
            <locale name="C">
                <short></short>
                <long></long>
            </locale>
        </schema>
    </schemalist>
</gconfschemafile>

Code:

gconftool-2 --install-schema-file /usr/share/gconf/schemas/comical.schemas

**HerrEkberg** · June 21st, 2006

Originally Posted by mmcmonster

Thanks a lot, guys. Also, thanks go out to the folks at comp.lang.python, who helped me write the python code that follows.

Here is the code to create thumbnails for .cbz sequential image archives (usually associated with comical or comix in linux or cdisplay on MSWindows).

I suspected it was to be used for comic book archives when I saw it on comp.lang.python.

Comix also includes a comic book thumbnailer (in later versions) called comicthumb, written by Christoph Wolk who is a regular on these forums I believe. It is in essence very much like the one you have written, but it supports RAR and tar archives as well and has some other nice features. You can check it out if you want.

Lazy link: http://comix.sourceforge.net/

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