Calibre and page-template.xpgt

[icecreamassassin]

Hello -

I have a Kobo and use Calibre for managing/tweaking my ePub collection. One issue that I have is that on some ePubs the margins are ludicrously large. ePub->ePub conversions eliminate this on some books, but not others. From searching the forums it appears that the presence of 'page-template.xpgt' appears to be the culprit.

My understanding is that this is an ADE extension for styling ePubs; from other posts it seems that deleting this file from the bundle and then doing the ePub->ePub conversion fixes the margins.

I guess I'm looking for clarification for Calibre interaction with this style sheet -
a) does Calibre recognize 'page-template.xpgt' at all?
b) if so, do the margin settings apply to this file?
c) if not, as it is a non-standard ePub extension, is it appropriate to request Calibre to support it?
d) does this make any sense?

It currently looks like I'm stuck writing a Plugin to automagically 86 the 'page-template.xpgt' file prior to ePub conversion, but I have the Python skills of a 2-year old (making me hesitant to do such a thing).

Thanks

[kovidgoyal]

http://bazaar.launchpad.net/~kovid/c.../revision/8634

[icecreamassassin]

Originally Posted by kovidgoyal

http://bazaar.launchpad.net/~kovid/c.../revision/8634

Ah! Thanks. Looks like it should be taking care of ADE magic.

I had toyed with the 'Remove fake margins' setting (checked and unchecked), but alas, still had margin issues. I suspect I'm doing something wrong with my settings. I'll try playing with it more this evening.

[kovidgoyal]

Removing fake margins tries hard to only remove margins that are actually intended as page margins, by collecting statistics on what margins are used where, which means that it can sometimes fail to detect the margins.

[DoctorOhh]

Originally Posted by icecreamassassin

Ah! Thanks. Looks like it should be taking care of ADE magic.

I had toyed with the 'Remove fake margins' setting (checked and unchecked), but alas, still had margin issues. I suspect I'm doing something wrong with my settings. I'll try playing with it more this evening.

The change Kovid pointed to for handling the margins in a Adobe page template will be in the next version of calibre.

[icecreamassassin]

Kovid -

Just tried converting the book in 0.7.53 and still no luck with the margins. The thing I did notice, though, was that in the job log of the conversion I did not at any point in time see a line like:

'Removing page margins specified in the Adobe page template'

which, if I'm understanding how you've structured the code, should show up somewhere (as per self.log). Of course I could be reading far too much into that, as I haven't really studied the source much at all.

I've tested removing references to page-template.xpgt via the 'Search & Replace' function of the conversion, and that does do the trick for the most part, but something feels kinda 'hackish' about that - I'm not sure what other formatting exists in the .xpgt file and I'm paranoid about annihilating the whole shebang.

Thanks again.

[kovidgoyal]

The Adobe file has to be identified with the correct mime type for calibre to process it. What is the mimetype for it in your epub.

[icecreamassassin]

Originally Posted by kovidgoyal

The Adobe file has to be identified with the correct mime type for calibre to process it. What is the mimetype for it in your epub.

Well, within the associated .html files in the ePub, it is identified thusly:

<link href="../Styles/page-template.xpgt" rel="stylesheet" type="application/vnd.adobe-page-template+xml" />

The actual page-template.xpgt file doesn't appear to contain any mime info.

On top of being Python-dumb, I also a bit html/xml/CSS/ePub dumb, so perhaps that's not quite the info you're looking for?

[kovidgoyal]

That is correct, I have no idea why it isn't being processed for you. Are you runnign from source and if you are did you update the source checkout as well as installing 0.7.53?

[icecreamassassin]

Originally Posted by kovidgoyal

That is correct, I have no idea why it isn't being processed for you. Are you runnign from source and if you are did you update the source checkout as well as installing 0.7.53?

I am not running from source; I am rocking an Ubuntu box and installed via the shell as per the download instruction on the Calibre site...

...but, as I was about to send you more diagnostic info, I just noticed that I am still apparently on Python 2.6.6. I see that for a source install Python 2.7.1 or greater is required. Think that may have something to do with it?

[kovidgoyal]

If you are running a source install then you cannot even start newer calibre versions with python 2.6

[icecreamassassin]

Originally Posted by kovidgoyal

If you are running a source install then you cannot even start newer calibre versions with python 2.6

To clarify: I'm running a binary install, not a source install. It was just something I noticed. I've attached the job log from the conversion; perhaps that may help?

[kovidgoyal]

No, that doesn't help. You should open a aticket and atatch your epub file.

[icecreamassassin]

Originally Posted by kovidgoyal

No, that doesn't help. You should open a aticket and atatch your epub file.

Yeah figured that wouldn't be all that helpful. I'll open a ticket, but unfortunately due to the nature of this epub, licensing precludes me from attaching it.

[kovidgoyal]

You can mark the ticket as private.