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- Content .- Fans (2) . 

KDE ePub Thumbnailer

   1.0  

KDE Improvement

Score 71%
KDE ePub Thumbnailer
zoom


Version Control:  Link
Minimum required   KDE 4.x
Downloads:  1237
Submitted:  May 29 2012
Updated:  Jan 12 2014

Description:

A KDE thumbnail generator for the ePub file format.

Once installed go to Configure Dolphin -> General -> Previews and select ePub documents.

If you have some epub files containing a cover, but not supported by the thumbnailer, please tell me, I'll be glad to test them.

Since 0.9 it doesn't require libepub (ebook-tools).

* fb2? http://kde-apps.org/content/show.php/KDE+fb2+Thumbnailer?content=160180
* chm? http://kde-apps.org/content/show.php/KDE+CHM+Thumbnailer?content=153410

Comments are welcome.




Changelog:

1.0
-----
Stable release (just 0.9 renamed)

0.9 beta (nolibepub branch)
-----
Complete rewrite:
* It requires no more libepub.
* Increased supported ePub files.

0.3.1
-----
* Added another strategy to find the cover, currently shaped on Sigil (by dliw) [0.3]
* German translation added (by dliw) [0.3]
* Better memory management
* Minor code improvements

0.2
-----
* Increased supported ePub files:
- a new strategy to retrieve the cover from standard compliant ePub files;
- the "old" strategy now is the second option;
- a little improvement to increase the possibility of a successful result.
* Some minor improvements.
* Simplified Chinese (zh_CN) translation added. Thanks to nihui.

0.1
-----
first release




LicenseGPL
(source)
SUSE(KDE:Extra - all the supported versions)
Ubuntu(Thanks to srog)
Gentoo(Thanks to mrbitt)
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-

 awsome!!

 
 by sosonok on: May 31 2012
 
Score 63%

Nice work, caig!!

I've realized preserveAspectRatio="none" makes most covers "thumbnailable", in case it helps to figure out why so many covers doesn' show up and how to fix it.


Reply to this

-

 Re: awsome!!

 
 by caig on: May 31 2012
 
Score 50%

Hi, thanks for the suggestion, I'll study it :)


Reply to this

-

 Discarded Dolphin feature

 
 by sosonok on: May 31 2012
 
Score 63%

Do you know this?

https://svn.reviewboard.kde.org/r/3271/diff/

In case it may be helpful.


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-

 Re: Discarded Dolphin feature

 
 by caig on: May 31 2012
 
Score 50%

Yes, the 0.1 release follows the strategy explained in that page, even if, thanks to libepub, in a much more simple way.
The next release will contain one more strategy to retrieve the covers and a little check.
Thanks for your interest! :)


Reply to this

-

 About 0.2

 
 by sosonok on: Jun 2 2012
 
Score 50%

I can see the same covers I saw in the previous version. Nothing more. They have in common they are from epubs generated by Calibre, they use svg to scale covers and they use preserveAspectRatio="none" attribute.

This makes less than 1% of my epubs (none of them produced by me).


Reply to this

-

 About 0.2

 
 by sosonok on: Jun 2 2012
 
Score 63%

I can see the same covers I saw in the previous version. Nothing more. They have in common they are from epubs generated by Calibre, they use svg to scale covers and they use preserveAspectRatio="none" attribute.

This makes less than 1% of my epubs (none of them produced by me).


Reply to this

-

 Re: About 0.2

 
 by caig on: Jun 3 2012
 
Score 50%

Do you mean less of 1% of your epubs show a cover? Very bad result :(
In my case I have a 89% of success, 5% more than 0.1 release.
The plugin in first instance searches for a guide element like this:

<guide>
<reference type="cover" title="Cover" href="Text/Section0001.xhtml"/>
</guide>

(type="cover")

If not, as the 0.1 did, searches for the first html/xml file (usually it contains the cover) and parses the file searching for <img> or <image>.

Your suggestion in the other message make me thinking about another way to retrieve covers I can add. I'll study and try it. One of your not working epubs is available for free somewhere? It can be useful to understand. Thank you :)


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-

 Re: Re: About 0.2

 
 by sosonok on: Jun 3 2012
 
Score 63%

I forgot to mention most of my epubs have a peculiarity: cover image is inside a header (the first one). Anyway a couple of extra examples: the second one was ok, now I remove preserveAspectRatio="none" and I can't see cover anymore in Dolphin.

http://uploadmirrors.com/download/0PGVCQKU/FederidoGarciaLorca.LaCasaDeBernardaA1.1_0.epub

http://uploadmirrors.com/download/0I2PA6U4/Novelas_ejemplares_-_Cervantes.epub

http://uploadmirrors.com/download/PANVOXNG/Curzio_Malaparte_-_La_piel.epub


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-

 Re: Re: Re: About 0.2

 
 by caig on: Jun 3 2012
 
Score 50%

Very interesting...I see them:
http://i.imgur.com/SYirZ.png
They are supported with the first strategy (searching for something like):

<guide>
<reference href="Text/titlepage.xhtml" title="Cover" type="cover"/>
</guide>


Reply to this

-

 Re: Re: Re: Re: About 0.2

 
 by sosonok on: Jun 3 2012
 
Score 50%

So, what could it be the problem here?


Reply to this

-

 Re: Re: Re: Re: About 0.2

 
 by sosonok on: Jun 3 2012
 
Score 63%

I'm sorry, caig.

There was some kind of coflict between my first manual installation and the lately Chakra pkgbuilds. Now it works like a charm! I can see most of the covers :)


Reply to this

-

 Re: Re: Re: Re: Re: About 0.2

 
 by caig on: Jun 4 2012
 
Score 50%

Perfect! I'm happy it works for you too. Thanks for feedbacks and tips :)


Reply to this

-

 Something more concrete

 
 by sosonok on: Jun 2 2012
 
Score 63%

Well, I hope I've found something relevant.

When id for the cover item in content.opf is exactly "cover", thumbnail is produced. But in many epubs the id is the whole file name, extension included:

<item href="Images/cover.jpeg" id="cover.jpeg" media-type="image/jpeg" />

These ones aren't thumbnailed.


Reply to this

-

 no thumb to view

 
 by swissball on: Jan 18 2013
 
Score 50%

Hello caig,

thanks for your work.
What can I change, to get a thumb displayed.
I did the one-click install and started dolphin again, but no thumb is displayed (also not for pdf).
>Configure Dolphin -> General -> Previews and select ePub documents.<
I cannot find a field "epub" in any of dolphins menues.

I use:
german
openSuse 12.2; Linux 3.4.11-2.16-desktop x86_64
KDE: 4.8.5 (4.8.5)
dolphin Version 2
in YaST2:
libepub is not there but
libepub0
libepub-devel is not installed
okular works fine with mobi, pdf, djvu and epub

thank you
greetings
micca


Reply to this

-

 Re: no thumb to view

 
 by caig on: Jan 19 2013
 
Score 50%

Hello,
thank you for reporting the issue :)

If the package is successfully installed, the option should be displayed.
The configuration option is a bit hidden in the Dolphin default interface.
Try to use the button on the right side of the toolbar http://paste.opensuse.org/e097a2b4
It should list the "Configure Dolphin" item to open the configuration
dialog and to find the option (General -> Previews and select ePub documents).

Please tell me again if you have some troubles.

Bye!

----
About the PDF thumbnails issue:
check if you have the "kdegraphics-thumbnailers" package installed and the
configuration option selected in Dolphin.


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