Switch to Gtk.Application

[jeromerobert]

Working on #52 and #44 I have the feeling that pdfarranger should first use the UI action concept. It should be straightforward to introduce Gtk.Action but it's deprecated so I would prefer to invest time on Gtk.Application. This looks like a somehow intrusive and long work so this issue, #52 and #44 will probably remain open for a while.

[dreua]

Sounds good to me, let me know if I can be of any assistance!

As a side note, I think it might be a good idea to break the 1300 line beast that pdfarranger.py currently is down into smaller pieces. What do you think?

[jeromerobert]

As a side note, I think it might be a good idea to break the 1300 line beast that pdfarranger.py
currently is down into smaller pieces. What do you think?

I agree it's a bit hard to read but I think the main issue is the size of the PdfArranger class, not the size of the pdfarranger.py file. Unless I'm wrong introducing a Gtk.Application class should help because we'll have actions in a class and GUI layout in an other one. Anyway once implemented move the application file to a new file should be easy.

[jeromerobert]

@dreua finally that did not help to make the code clearer. I think we should create an IconView class, this would make the PdfArranger thiner.

[dreua]

@jeromerobert I disagree, I think the code became clearer in many places, thank you for your ongoing maintenance!