Kobo Patcher

[byblo]

Originally Posted by dmapr

Not that I know of. Metazoa just mentioned that he hasn't done it yet, but didn't say if he had a chance to even start looking into it.

I hope he wont give up. His patch would be perfect with these additions

[dmapr]

Originally Posted by byblo

I hope he wont give up. His patch would be perfect with these additions

He didn't And there's some other goodies in there, too

http://rghost.ru/50295847

[DNSB]

Here's a translation of Metazoa's post about patcher 10


mz_koboreaderpatch_10, anniversary release

In the new version:

- Kobo Patch Generator updated to version 1.5: The correction of minor bugs;
- For 2.10.0 and 3.0.0 new patch 'Search in Library by default': does the default search in the device library, not in the store BookStore;
- For 2.10.0 and 3.0.0 new patch 'Ignore book internal CSS stylesheet': reader ignores the built-in styles of the book, which makes it impossible to have unregulated leading, non-removable fonts, etc.;
- For 2.10.0 and 3.0.0 new patch 'Ignore book TOC navpoints' (disabled by default!) NavPoint reader ignores directives in the file with the contents of the book, as a result - the book is always opened on the first page of the first HTML-section. This patch is disabled by default because there is no guarantee that such behavior is always correct: the authors epub-file is usually knows best which page of the book should be opened first.

How to install a personal patch:

1. Download archive: http://rghost.ru/50295847
2. Unpack the archive to a convenient folder.
3. Copy the kpg.conf and libnickel.so.1.0.0 files for your version of firmware to a convenient folder along with kpg.exe.
4. With any text editor edit the file kpg.conf to your liking and understanding.
5. Run kpg.exe (preferably in the console) and wait for it to finish.
5a. Connect your Kobo ereader to your computer
6. Transfer the KoboRoot.tgz file generated by the patcher to the .kobo directory on the Kobo's internal storage.
7. Safely eject the Kobo ereader from your OS.
8. Disconnect the USB cable from the Kobo ereader.
9. Wait for the installation to complete. The patch will install and the device will reboot.
10. Rejoice.

How to remove personal patch (return-reader in the "factory" condition):

Replace a previous statement on paragraph 4: "4. Any file with a text editor do kpg.conf empty (or comment out all lines in it)." and execute it.


Regards,
David

[DNSB]

Patcher v10 has an item to have the search from the home screen to go to the library first. While it works, when you open the search, neither option is shown as selected which is a touch odd the first couple of times you see it.

Also the disable stylesheet only works for CSS in stylesheet files. If you have one of those %^&*(\- epubs that does all the CSS in the chapter files using the <style></style> tags or inline, this has no effect.

Regards,
David

[Mora]

Okay i installed the patch and its working fine. But is there anyway to go real fullscreen. Because even after removing the footer there is still space around the edges and the top. I want to use the entire screen. So is there anyway i can remove the header too?

Im on kobo glo 2.10.0

[byblo]

Originally Posted by dmapr

He didn't And there's some other goodies in there, too

Great ^^ Many thanks to Metazoa.

Unfortunately, the patch: "Ignore book internal CSS stylesheet" is too aggressive, since it disables everything, even the justification, making text presentation very bad looking. (this said, I made some patches that should help, see below)

Originally Posted by DNSB

Also the disable stylesheet only works for CSS in stylesheet files. If you have one of those %^&*(\- epubs that does all the CSS in the chapter files using the <style></style> tags or inline, this has no effect.

Here are some patches which seems to work pretty well (ONLY tested with .epub)

There are 3 additions:
- Force user selected font (Ignore external font-family in CSS and style tag)
- Force user selected line spacing (Ignore external line-height in CSS and style tag)
And the little bonus, a fix for something that have been annoying me for a long time, the stretched cover ^^;
- Force aspect ratio on pictures (Ignore preserveAspectRatio)

This is for 3.0.0 firmware only (but it should be easy to apply them to older firmwares)

<Patch>
patch_name = `Force user selected font (Ignore external font-family in CSS and style tag)`
patch_enable = `yes`
# Warning: This is an EXPERIMENTAL patch will replace all "font-family" to "_ont-family"
#          ALL patches - except the last one - are necessary since they all rely to the change of the last one.
#          This is barbarian, dirty workaround and maybe unsafe, but in waiting for better... (tested ONLY on .epub)
#          Patch by byblo
replace_string = 010FB4B1, `f`, `_`
replace_string = 010FB529, `f`, `_`
replace_string = 010FB5A1, `f`, `_`
replace_string = 010FB619, `f`, `_`
replace_string = 010FB68A, `f`, `_`
replace_string = 0112B63D, `f`, `_`
replace_string = 0112BFAC, `f`, `_`
replace_string = 0112C1FD, `f`, `_`
replace_string = 0112EDE9, `f`, `_`
replace_string = 0112F4B2, `f`, `_`
replace_string = 01130690, `f`, `_`
replace_string = 01130FC4, `f`, `_`
replace_string = 0113114C, `f`, `_`
replace_string = 01159268, `f`, `_`
replace_string = 0115D385, `f`, `_`
replace_string = 01161C24, `f`, `_`
replace_string = 01161C50, `f`, `_`
replace_string = 01161C6C, `f`, `_`
replace_string = 01400C27, `f`, `_`
replace_string = 01400E4E, `f`, `_`
#Note: this is the main entry that has to be replaced to avoid reading font-family on CSS and <style> tags
replace_string = 0143C65C, `f`, `_`
</Patch>

<Patch>
patch_name = `Force user selected line spacing (Ignore external line-height in CSS and style tag)`
patch_enable = `yes`
# Warning: This is an EXPERIMENTAL patch will replace all "line-height" to "_ine-height"
#          ALL patches - except the last one - are necessary since they all rely to the change of the last one.
#          This is barbarian, dirty workaround and maybe unsafe, but in waiting for better... (tested ONLY on .epub)
#          Patch by byblo
replace_string = 010FB6DD, `l`, `_`
replace_string = 0112BE32, `l`, `_`
replace_string = 0112EE25, `l`, `_`
replace_string = 011306A4, `l`, `_`
replace_string = 0113A3C4, `l`, `_`
replace_string = 0113A3ED, `l`, `_`
replace_string = 0113A428, `l`, `_`
replace_string = 0115806A, `l`, `_`
replace_string = 0115D3B9, `l`, `_`
replace_string = 0115FB1F, `l`, `_`
#Note: this is the main entry that has to be replaced to avoid reading line-height on CSS and <style> tags
replace_string = 0143B328, `l`, `_`
</Patch>

<Patch>
patch_name = `Force aspect ratio on pictures (Ignore preserveAspectRatio)`
patch_enable = `yes`
#force to keep aspect ratio of the picture by ignoring the preserveAspectRatio entry (half confirmed. works well when preserveAspectRatio=none)
#can be useful to keep aspect ratio on covers ect...
#          Patch by byblo (tested ONLY on .epub)
replace_string = 1439358, `p`, `_`
</Patch>

Note: Do not forget to disable the "Ignore book internal CSS stylesheet", or the 2 first patches wont have any effect...

As you can see, the patches will force the ereader to totally ignore the font-famliy & line-height (someone wants to try the net browser?). So I'm not sure it wont mess something else. But as far as I tested, everything on the ereader seems working well.

Here is a test epub, in case needed (attached)

[DNSB]

Originally Posted by Mora

Okay i installed the patch and its working fine. But is there anyway to go real fullscreen. Because even after removing the footer there is still space around the edges and the top. I want to use the entire screen. So is there anyway i can remove the header too?

Im on kobo glo 2.10.0

The space around the edges are the right and left margins. You can set the CSS to reduce those margins to 0 and with the margin slider set to 0, you get pretty much edge to edge text. The top margin is pretty minimal on epubs in 2.10.0 and 3.0.0, on kepubs, it is set quite a bit larger making it rather similar to most dead tree books. At this point in time, there is no method of controlling the header size in kepubs.

Regards,
David

[skip_sands]

version 10 is fantastic as far as I used it. but is there a way to get rid of the empty lines between paragraphs? it seems the use of the "ignore css" patch adds those empty lines again.

[PeterT]

Originally Posted by skip_sands

version 10 is fantastic as far as I used it. but is there a way to get rid of the empty lines between paragraphs? it seems the use of the "ignore css" patch adds those empty lines again.

Gee... possibly inter-paragraph spacing was specified in CSS which is now disabled?

[Bonex]

Originally Posted by skip_sands

version 10 is fantastic as far as I used it. but is there a way to get rid of the empty lines between paragraphs? it seems the use of the "ignore css" patch adds those empty lines again.

I think that happens because if the CSS is completely ignored then defaults apply, and if I'm not mistaken <p> paragraph tags usually have a non-zero margin around them.

IMHO this patch can cause more problems than benefits, because you completely lose all styling and formatting, and it's not some option you can tap when you need it, so I'll pass on this.

[byblo]

@dmapr: I've been trying the 'Ignore book TOC navpoints' patch.

Unfortunately, it does not work everytime, and when it does, the TOC is obviously missing from the book, making the patch barely useful, since it breaks the TOC navigation.

I know I'm annoying, but could Metazoa take in consideration again the david's advice :

Originally Posted by davidfor

But, he also needs to consider the reading status of the book. This is stored in the database for the book.

- Unread - ReadStatus=0 - Open to first TOC entry
- Reading - ReadStatus=1 - Open using reading position stored in database
- Finished - ReadStatus=2 - Open to first page of the book.

That is why I suggested looking at the path for opening a finished book. As there is already an execution path that will do what is desired, finding a way to use that would solve the problem.

This is the last feature that I need to be fully happy with my Glo

[skip_sands]

Originally Posted by Bonex

I think that happens because if the CSS is completely ignored then defaults apply, and if I'm not mistaken <p> paragraph tags usually have a non-zero margin around them.

IMHO this patch can cause more problems than benefits, because you completely lose all styling and formatting, and it's not some option you can tap when you need it, so I'll pass on this.

Thanks a lot for the fast reply!

Is it possible to change the default margins in the kobo reader itself or anything I can apply in conversion in calibre?

[Nick_1964]

In calibre there is an option at the conversion side that removes empty lines between paragraps, even an option to insert an ident at the place it originally was.
The same with margins.

[jackie_w]

Originally Posted by Nick_1964

In calibre there is an option at the conversion side that removes empty lines between paragraps, even an option to insert an ident at the place it originally was.
The same with margins.

No there's nothing you can do in calibre. The css patch says 'ignore all epub stylesheets'. At least this is true for standard epubs, I don't know if it would be the same for kepubs.

For those who don't care if their epubs are turned into glorified TXT files, this particular patch may be seen as a good thing. For everyone else, it's far too much of a sledgehammer to crack a nut.

[Nick_1964]

Originally Posted by jackie_w

No there's nothing you can do in calibre. The css patch says 'ignore all epub stylesheets'. At least this is true for standard epubs, I don't know if it would be the same for kepubs.

For those who don't care if their epubs are turned into glorified TXT files, this particular patch may be seen as a good thing. For everyone else, it's far too much of a sledgehammer to crack a nut.

With Calibre you can insert a @page rule in every HTML with margins and stuff like that, as it is not in the .css it can't be ignored.
And you can use an xpgt file in the misc directory of the book with the styles in it, that will also be ignored by the patch.
Only.. what takes more time, to adjust an ebook taking out the wrong lines in the .css file and don't use the patch, or use the patch but build an alternative way in the book so margins are not ignored.
For myself, I won't use that part of the patch, because I have more readers, so I convert all books with calibre, insert Amasis font in it, with my margins, so it works in every reader.