[Okular-devel] [Bug 161324] recognise columns in the text of a page

2011-08-28 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324


Albert Astals Cid tsdg...@terra.es changed:

   What|Removed |Added

 Status|NEW |RESOLVED
   Version Fixed In||4.8.0
 Resolution||FIXED




--- Comment #43 from Albert Astals Cid tsdgeos terra es  2011-08-28 20:33:57 
---
This has been implemented in this year GSoC and will be available in Okular as
of KDE 4.8

You can find more info at
http://tsdgeos.blogspot.com/2011/08/okular-selection-gsoc-in-depth-analysis.html

You are all encouraged to give a try to the current git master code (if you
know how to compile) and give back constructive feedback.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2011-06-27 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324


Albert Astals Cid tsdg...@terra.es changed:

   What|Removed |Added

 CC||guilfordst...@gmail.com




--- Comment #42 from Albert Astals Cid tsdgeos terra es  2011-06-27 07:36:50 
---
*** Bug 276580 has been marked as a duplicate of this bug. ***

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-11-01 Thread yves
https://bugs.kde.org/show_bug.cgi?id=161324


yves yves.henneq...@gmail.com changed:

   What|Removed |Added

 CC||yves.henneq...@gmail.com




--- Comment #39 from yves yves hennequin gmail com  2010-11-01 17:16:46 ---
hi
sorry not sure this is the right place for me to comment..
As a user of Okular I would also benefit from the double column recognition for
annotations, etc...
My work around is to cover text with an inline comment without text and lower
the opacity or put an ellipse and change it into a rectangle.
With this in mind I would then also be happy if I could set the parameters of
the annotations (opacity, collors etc...) once for all so that when I place a
new one, it has already the look I want.
I have no idea how difficult that is to do...
cheers
y.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-17 Thread Alvaro Aguilera
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #36 from Alvaro Aguilera alvaro aguilera gmail com  2010-09-17 
10:46:54 ---
I like the idea of supporting the multiple file formats but I guess that 99% of
the people (myself included) use Okular exclusively as a PDF reader. It's a
pity that the formant independence gets in the way of implementing features
that would be actually useful for the majority of its users. I'd bet that if
someone revamps KPDF people would make the switch from one day to the other.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-17 Thread Robert Knight
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #37 from Robert Knight robertknight gmail com  2010-09-17 
11:21:53 ---
 Does poppler guess the text layout using some generic heuristic algorithm, or
 use some explicit information on text ordering embedded in the PDF format?

PDFs do not contain layout information about how text is structured into
paragraphs and columns.  As I understand it, what PDF provides is essentially a
list of commands that say draw string S at position P with font F.

I haven't looked into recent versions of Poppler but older versions had some
fairly complex heuristic algorithms to try to piece together the layout given
the input.  These algorithms had some interesting flaws.  If I remember
correctly, due to numerical instability the order of paragraphs in the output
text could differ significantly depending on the processor on which you ran the
code.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-17 Thread uetsah
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #38 from uetsah uetsah googlemail com  2010-09-17 13:03:37 ---
(In reply to comment #31)
 Indeed, evince does not support text selection in the horde of document 
 formats
 that Okular does, our selection might be better or worse but it is [mostly]
 consisten among document formats.

Supporting multiple document formats consistently is great, but won't it be
possible to still allow certain features to only be supported by some document
formats and not others? Or to be implemented differently for each backend,
where it makes sense?

The text selection user interface could still stay the same for every format,
but in the background it could use whatever algorithms each respective backend
provides for reading or guessing text layout structure.

So in case of PDF documents, the backend would use Poppler's heuristic
algorithms. In case of OpenDocument documents, the backend would use the
structural information already available in the document file. And so on...

Of course there could also be a generic algorithm that guesses the text
structure independently of the document format, but as I understand it, that
would be much more work...

Btw, I personally think that even with this feature missing, Okular is still
best PDF viewer out there, so thanks for the great work and for giving it away
for free... :-)
If this feature is not on your priority list, that's of course totally fine,
but please maybe still consider it for the future, just in case one day you're
bored and don't know anything else to implement... ;-)

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-16 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #33 from Albert Astals Cid tsdgeos terra es  2010-09-17 00:38:35 
---
Let me tell you a secret: i don't need advanced text selection in okular, so
obviously it's not my priority.

Now let me tell you another secret: Okular is free software! So all you that
need advanced text selection are very welcome to improve okular text selection
algorithm send a patch and then not only pdf text selection would be better but
all the other formats too! For free!

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-16 Thread Peter Hedlund
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #34 from Peter Hedlund peter peterandlinda com  2010-09-17 
00:49:11 ---
(In reply to comment #33)
 Let me tell you a secret: i don't need advanced text selection in okular, so
 obviously it's not my priority.
 
 Now let me tell you another secret: Okular is free software! So all you that
 need advanced text selection are very welcome to improve okular text selection
 algorithm send a patch and then not only pdf text selection would be better 
 but
 all the other formats too! For free!

Here is my secret: I have never needed anything in the program I maintain
(KWordQuiz), but I think it is fun when people show interest and tell we about
features they would like. If they are reasonable I see it as a challenge to my
limited self-taught programming skills to try to implement them. That why I use
free software.

I have actually looked in to pdf developement as I had some interest in page
manipulation features like adding and removing (pages) so I know it is no walk
in the park. Still it seems someone has already done a significant part of the
work in this (selection) case. Now is the time to step up to the final
challenge or is programming not fun anymore?

Well, back to Adobe Reader...

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-09-16 Thread kde2eran
https://bugs.kde.org/show_bug.cgi?id=161324


kde2e...@tromer.org changed:

   What|Removed |Added

 CC||kde2e...@tromer.org




--- Comment #35 from  kde2eran tromer org  2010-09-17 07:10:19 ---
Does poppler guess the text layout using some generic heuristic algorithm, or
use some explicit information on text ordering embedded in the PDF format? If
it's the latter, then Okular ought to use that embedded information, via
poppler, instead of discarding it and taking a wild guess instead.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-08-20 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #31 from Albert Astals Cid tsdgeos terra es  2010-08-20 20:06:14 
---
Indeed, evince does not support text selection in the horde of document formats
that Okular does, our selection might be better or worse but it is [mostly]
consisten among document formats.

But you don't really care, you like bashing developers because you think that
will make them realize that you are right.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-08-19 Thread chosunsk
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #30 from  chosunsk hotmail com  2010-08-20 03:22:39 ---
(In reply to comment #29)
 (In reply to comment #26)
  #24 This is not going to help okular at all since we do not use poppler text
  algorithms since we support text selection for more formats than just PDF
 
 I guess that 90% of Okular users that also use annotation, use it for reading
 PDF files.
 
 Maybe solving this issue with Poppler solution is not such a bad way to go.

Indeed, evince, which uses poppler algorithms, supports column selection.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-08-05 Thread Yuval Aviel
https://bugs.kde.org/show_bug.cgi?id=161324


Yuval Aviel yuval.av...@gmail.com changed:

   What|Removed |Added

 CC||yuval.av...@gmail.com




--- Comment #29 from Yuval Aviel yuval aviel gmail com  2010-08-05 11:29:20 
---
(In reply to comment #26)
 #24 This is not going to help okular at all since we do not use poppler text
 algorithms since we support text selection for more formats than just PDF

I guess that 90% of Okular users that also use annotation, use it for reading
PDF files.

Maybe solving this issue with Poppler solution is not such a bad way to go.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-04-27 Thread Luigi Toscano
https://bugs.kde.org/show_bug.cgi?id=161324


Luigi Toscano luigi.tosc...@tiscali.it changed:

   What|Removed |Added

 CC||isma...@terra.es




--- Comment #28 from Luigi Toscano luigi toscano tiscali it  2010-04-27 
20:39:55 ---
*** Bug 235531 has been marked as a duplicate of this bug. ***

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-02-04 Thread Ekin Akoglu
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #27 from Ekin Akoglu ekin ims metu edu tr  2010-02-04 14:08:22 ---
I did not mean to be rude when making above statement. I really appreciate KDE
and its applications in terms of the approach they have taken, i.e. abundant
configurability and capability of the application. If only Okular had this
feature.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-02-02 Thread Pino Toscano
https://bugs.kde.org/show_bug.cgi?id=161324


Pino Toscano p...@kde.org changed:

   What|Removed |Added

 CC||e...@ims.metu.edu.tr




--- Comment #22 from Pino Toscano pino kde org  2010-02-02 14:34:37 ---
*** Bug 225267 has been marked as a duplicate of this bug. ***

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-02-02 Thread Ekin Akoglu
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #23 from Ekin Akoglu ekin ims metu edu tr  2010-02-02 15:24:24 ---
I agree that three years do not make it easier to solve but it definitely makes
it a must feature that needs to be implemented. By the way, what do developers
do between the releases apart from fixing bugs?

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2010-02-02 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #26 from Albert Astals Cid tsdgeos terra es  2010-02-02 23:51:38 
---
#24 This is not going to help okular at all since we do not use poppler text
algorithms since we support text selection for more formats than just PDF

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-09-13 Thread Albert Astals Cid
https://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #21 from Albert Astals Cid tsdgeos terra es  2009-09-13 21:58:52 
---
Three years don't make it easier to solve, we still welcome people with
knowledge on how to fix it.

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-09-10 Thread dani.valverde
https://bugs.kde.org/show_bug.cgi?id=161324


dani.valve...@gmail.com changed:

   What|Removed |Added

 CC||dani.valve...@gmail.com




--- Comment #18 from  dani valverde gmail com  2009-09-10 12:01:23 ---
What about adding a text highlight tool (just as the selection tool, but to
highlight instead of selecting)? It may be an easier solution while looking for
a fancier way ...

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-05-02 Thread Pino Toscano
https://bugs.kde.org/show_bug.cgi?id=161324


Pino Toscano p...@kde.org changed:

   What|Removed |Added

 Blocks||190433




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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-02-27 Thread Isaac Puch Rojo
https://bugs.kde.org/show_bug.cgi?id=161324


Isaac Puch Rojo puchr...@tzi.de changed:

   What|Removed |Added

 CC||puchr...@tzi.de




--- Comment #16 from Isaac Puch Rojo puchrojo tzi de  2009-02-27 10:17:11 ---
(In reply to comment #15)

OK, The discussion could be more diplomatic and the comment are not very
constructive. But if you want to work with scientific paper, this bug is very
important. 

I only want to ask, if the Okular Team want to work in this problem or no. I
would respect that they don't want. 

Thanks for the great Program!

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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-02-15 Thread Lars Marowsky-Brée
http://bugs.kde.org/show_bug.cgi?id=161324


Lars Marowsky-Brée l...@suse.de changed:

   What|Removed |Added

 CC||l...@suse.de




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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-01-10 Thread Albert Astals Cid
http://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #10 from Albert Astals Cid tsdgeos terra es  2009-01-10 15:27:04 
---
Pattern recognizion of what is a column and what is not based on coordinates of
each character is something your brain can do very easily but programming an
algorithm that does that is not trivial by far, so i guess the answer is no


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-01-10 Thread Robert Knight
http://bugs.kde.org/show_bug.cgi?id=161324


Robert Knight robertknight gmail com changed:

   What|Removed |Added

 CC||robertkni...@gmail.com




--- Comment #13 from Robert Knight robertknight gmail com  2009-01-10 
16:11:51 ---
 Pattern recognizion of what is a column and what is not based on
 coordinates of each character is something your brain can do very easily
 but programming an algorithm that does that is not trivial by far,
 so i guess the answer is no 

It is certainly possible but not trivial - Ocropus provides a free software C++
implementation of algorithms to do this if you're interested.  The basic
approach is to try to the largest columns of whitespace in the page and divide
the text into columns based on that.


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-01-10 Thread Michal Witkowski
http://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #12 from Michal Witkowski neuro o2 pl  2009-01-10 15:51:21 ---
Just as I thought, it's a poppler bug. A similar problem is seen in evince
(gnome pdf viewer)

https://bugs.launchpad.net/poppler/+bug/33288


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-01-10 Thread Robert Knight
http://bugs.kde.org/show_bug.cgi?id=161324





--- Comment #14 from Robert Knight robertknight gmail com  2009-01-10 
16:12:59 ---
 The basic approach is to try to the largest columns of whitespace
 in the page and divide the text into columns based on that. 

Sorry, that should read:

The basic approach seems to be finding the largest columns of whitespace in the
page and dividing the text into columns based on that.


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2009-01-09 Thread Michal Witkowski
http://bugs.kde.org/show_bug.cgi?id=161324


Michal Witkowski neuro o2 pl changed:

   What|Removed |Added

 CC||ne...@o2.pl




--- Comment #9 from Michal Witkowski neuro o2 pl  2009-01-09 20:18:07 ---
The same can be said about the text select tool. It highlights text from both
columns.

Is there any hope that this might get resolved any time soon?


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-11-17 Thread Pino Toscano
http://bugs.kde.org/show_bug.cgi?id=161324


Pino Toscano pino kde org changed:

   What|Removed |Added

 CC||[EMAIL PROTECTED]
   ||.ca




--- Comment #7 from Pino Toscano pino kde org  2008-11-17 09:38:06 ---
*** Bug 175377 has been marked as a duplicate of this bug. ***


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-11-17 Thread James Rivett-Carnac
http://bugs.kde.org/show_bug.cgi?id=161324


James Rivett-Carnac james rivett carnac utoronto ca changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever Confirmed|0   |1




--- Comment #8 from James Rivett-Carnac james rivett carnac utoronto ca  
2008-11-17 09:52:44 ---
*** This bug has been confirmed by popular vote. ***


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-08-30 Thread Pino Toscano
http://bugs.kde.org/show_bug.cgi?id=161324


Pino Toscano pino kde org changed:

   What|Removed |Added

 CC||[EMAIL PROTECTED]




--- Comment #6 from Pino Toscano pino kde org  2008-08-30 21:35:01 ---
*** Bug 170102 has been marked as a duplicate of this bug. ***


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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-07-16 Thread jos poortvliet
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http://bugs.kde.org/show_bug.cgi?id=161324 




--- Additional Comments From jospoortvliet gmail com  2008-07-16 21:34 
---
I just bumped into this when trying to do a screencast about Okular (for a 
upcoming KDE promo site). I must say it is rather unfortunate, and I don't 
think I will demo this feature as it is - it will only make ppl feel betrayed 
if they find out it doesn't work as it should. This is no stab at you guys 
developing this app - Okular is way cool. It's just that this issue somehow has 
to be solved. I have no idea if this even works properly in for example Adobe 
acrobat reader, or any other app - I suspect this is pretty hard to do, given 
the little I know about layout stuff in PDF's. Pitty...

Anyway. I hope this can be solved someday - somehow. Meanwhile, keep up the 
good work. Okular is really nice, but still has many small issues...

I do wanna say the selection mechanism you guys made (right mouseclick - select 
an area - copy text/picture) works SOO GOOD :D
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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-04-28 Thread kde2eran
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http://bugs.kde.org/show_bug.cgi?id=161324 




--- Additional Comments From kde2eran tromer org  2008-04-28 18:16 ---
In the general case this seems to require a layout analysis, such as OCRopus.
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[Okular-devel] [Bug 161324] recognise columns in the text of a page

2008-04-27 Thread Pino Toscano
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http://bugs.kde.org/show_bug.cgi?id=161324 
pino kde org changed:

   What|Removed |Added

Summary|Okular: Highlighting a PDF  |recognise columns in the
   |with columns|text of a page



--- Additional Comments From pino kde org  2008-04-27 13:55 ---
Give a better title, as it's a general problem.
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