Xournalpp is written in C++ while Xournal is written in C :) They are very
different code-wise. In terms of feature sets, I'm not sure what the
current state of Xournal is feature-wise and how far it's gone since
Xournalpp was started. The last Xournal release I used was the one packaged
with Debian Squeeze, which didn't have support for inserting images and I
found that some documents used up a lot of RAM, so that's why I switched to
Xournalpp which was much less stable but had both of those problems fixed.
Since Xournalpp represented such a large rewrite there are things like the
sidebar, multi-page document views, different eraser types, latex input,
etc. that probably also don't exist in Xournal.
I suspect at this point, moving the features of Xournalpp into Xournal
would be a hefty task, so I'm not sure that's an option. Updating Xournalpp
to be GTK3 compatible should be possible, but there may be a number of
features Xournal now has that would also be difficult to port, I'm not sure.
Hope that helps,
Wilson
On Sun, Nov 17, 2013 at 8:44 PM, Shuhao <shu...@shuhaowu.com> wrote:
> Can't we merge the two projects into one? This seems confusing with
> xournalpp.
>
> Shuhao
>
> On 11/17/2013 08:38 PM, Wilson Brenna wrote:
> > Hello - I can't speak for much of the development so the others can
> > hopefully fill in more details here, but I've been working on the C++
> > branch, Xournalpp, on Github at github.com/xournalpp/xournalpp. The GTK3
> > branch of the original Xournal is to my knowledge just a few months old,
> > but from what I hear it's looking like most things from original Xournal
> > are working there: https://github.com/dmgerman/xournal/commits/gtk3.
> >
> > I can't say much more though, because I don't have GTK3 on any of my
> > machines and I'm also a newbie at GTK+ development. I would love to see
> > Xournalpp GTK3 compatible though it's not my immediate priority mostly
> > because I currently lack test systems. I do plan to be involved with the
> > project for some time, if that gives you any idea about its future. From
> > what I can tell the two most currently updated Xournal branches are the
> > Xournalpp project on Github and the GTK3 branch on Github as well.
> >
> > Regarding feasibility on Xournalpp of what you suggested, I think for
> sure
> > some of it is possible. Certainly I would encourage anyone who wants to
> put
> > a presentation mode in Xournalpp and do my best to help out. I'll address
> > the ideas you had below:
> >
> >
> > On Sun, Nov 17, 2013 at 6:09 PM, Torsten Wagner <
> torsten.wag...@gmail.com>wrote:
> >
> >> Hi,
> >> I am looking into the development of xournal for some time and got a
> >> bit confused.
> >> There is a C++ branch which seems to get some but not much work at the
> >> moment.
> >> There is a SVN and a GIT. In the GIT there seems to be a GTK3 branch.
> >> Some Github forks exists as well.
> >>
> >> I couldn't figure out what is the actual up-to-date repro resp. from
> >> where to start.
> >> Should one wait for the GTK3 port?
> >> Is there any future for the C++ branch?
> >> Furthermore, I have a bit trouble to start reading the code. Is there
> >> any developer manual? Filestructure, coding style, etc.?
> >>
> >> I'm not an experienced developer so I've just added to the code keeping
> as
> > close to the original style as I can. No specific style guide for
> Xournalpp
> > that I know of. Andreas might have a better answer for the Xournalpp
> > filestructure, I didn't ever ask him, I just sort of fell into it. I can
> > tell you that collab/ is deprecated and I have no particular need for it,
> > /control contains most of the Xournalpp core with exporting, saving,
> > zooming, clipboard stuff, selecting objects, etc., /gui is fairly self
> > explanatory, /model has the general classes of Xournalpp objects, /pdf
> > contains the handlers for export to PDF as well as the complete
> standalone
> > poppler library for compatibility with recent versions of libpoppler,
> /undo
> > deals with all of the different types of action undo commands, and /util
> > has an assortment of things - especially useful in there are the
> stacktrace
> > and error/memory handling bits, and the serialization routines.
> Definitely
> > feel free to ask me any questions and I'll do the best I can to bring you
> > up to speed.
> >
> >
> >> Actually, I want to add a presentation mode to xournal. That is
> >> (ordered by piority):
> >>
> >> a) An extra window which mirrors the content of the actual drawing
> >> area (to be placed on the video projector screen)
> >>
> >
> > This should be possible in Xournalpp, not without some difficulty, but
> > possible nonetheless. I think the biggest hurdle might be the threading
> > that glib is using to redraw the canvas. A mode where both the original
> > canvas and the mirror are forced to be static might be the easiest way.
> >
> > My current mode of operation here is to either export to PDF and then
> > mirror my computer's display to give a presentation while seeing the
> > content, or else to present from Xournalpp with the right zoom so that
> it's
> > full screen (that way I can edit on the fly) and again mirror the laptop
> > screen. I'm pretty sure there was a bug in Xournalpp where page-up and
> > page-down didn't do the right thing in a full-zoom presentation mode, and
> > as I recall that is fixed on Github now, so page down will go to the next
> > slide.
> >
> >
> >> b) Make xournal aware of LaTeX beamer, which creates frames and
> >> slides... a frame can consists of several slides to mimic the effect
> >> of animations (add text and images part by part to the same frame).
> >> Thus, a PDF which contains only a single frame might consist of
> >> several pages. It would make sense, that Xournal keeps all kind of
> >> annotation until the next frame.
> >>
> >
> > I'm not 100% sure what you're asking for here, but my take was you want
> > something like a single Xournal slide with some separator of content
> (e.g.
> > layers) such that when exported to a PDF or put in presentation mode,
> > consecutive layers are added one after the other, to produce additional
> > content like the \pause in Beamer? I don't see any problem with having an
> > option in the export to PDF that you could check off in preferences that
> > would create a new slide for each consecutive layer. Certainly the latter
> > solution should be quite easy to add.
> >
> >
> >> d) Create a pane on the main window to see the next slide (and/or frame)
> >>
> >
> > Xournalpp has a sidebar pane that shows a list of slides. If you had a
> > static presentation window as in a), this part is basically taken care
> of.
> >
> >
> >> e) Display presentation time (either way, just a clock, time in
> >> minutes or time left)
> >>
> >
> > I'm not entirely sure how I'd go about doing this...
> >
> >
> >> c) Switch state of the presentation window into black, white or freeze
> >> (keep the slide to allow the presenter to search through the
> >> presentation and after the right frame/slide is found unfreeze and the
> >> presentation window will be updated)
> >>
> >
> > This should be possible but not without some serious initiative.
> Something
> > to add on to the additional presentation window from a).
> >
> >
> >> d) set and jump to bookmarks easily
> >>
> >
> > I'm not totally sure how this would be done at the moment but it should
> be
> > possible. Probably something like a toolbar option that lets you set
> custom
> > hotkeys that would jump to a given page.
> >
> >
> >>
> >> I would be very glad if you could give me some feedback on how
> >> difficulte it would be to reach the above aims. Would that be
> >> something of general interest for xournal or should it be a fork like
> >> xournal-presenter? Was there already some activity in this direction?
> >>
> >>
> > Definitely I've been using Xournalpp as a presentation tool so I've made
> > some moves in terms of improving usability this way, such as the
> > page-up/down fix mentioned above as well as some better zooming behaviour
> > and the addition of things like built in Latex support for equations on
> > slides. I was looking at getting some backgrounds included that are
> better
> > suited for presentations, see
> > https://github.com/xournalpp/xournalpp/issues/30.
> >
> > Cheers,
> > Wilson
> >
> >
> >
> >> Thanks for your support
> >>
> >> Torwag
> >>
> >>
> >>
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> >
> >
> >
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