[yo123]

Hi,

I am trying to write an output plugin to extend the PDB output formats.

PDB itself is only a container. Currently Calibre supports the following three output formats inside PDB. They can be selected from the PDB output dialog page before converting a ebook.

FORMAT_WRITERS = {
'doc': palmdoc_writer,
'ztxt': ztxt_writer,
'ereader': ereader_writer,
}

I have had the Writer and PDBOuput classes figured out for the plugin.

class HaodooWriter(FormatWriter):
class HaoDooPdbOutput(calibre.ebooks.pdb.output.PDBOutpu t):

However, I am stuck at how to add this extra writer to the dialog page.
I assumed that I need to make the above dictionary to become:

FORMAT_WRITERS = {
'doc': palmdoc_writer,
'ztxt': ztxt_writer,
'ereader': ereader_writer,
'haodoo': haodoo_writer,
}

and also make it to be loaded by Calibre UI. How can I realize this using the plugin mechanism without changing Calibre codes?

Any pointer/suggestion would be deeply appreciated.

Thanks in advance.

Jack