Re: Dia goes Gtk2, anyone else with it ?

[Cyrille Chepelov <cyrille chepelov org>]

Le Sat, Jun 08, 2002, à 12:52:42PM +0200, Hans Breuer a écrit:
> Hi all,
> below you'll find some kind of 'plan' what more or less
> needs to be done to make Dia a first class Gtk2 citizen.
> 
> The first step just landed in cvs. [Beware: it will _not_
> build as is on Linux and other *nix cause the auto/configure 
> stuff needs some love first.]

I'll take care of that this week-end, using James' work as a basis.
 
I'll be out of state next week (taking off from BSL tomorrow morning), so if
it breaks, someone else's gotta fix it :-)


> My GTK2 fixmes are FIXME? or GTKBUG?
> 
> app/interface.c:123 /*static*/
> app/interface.c:839 static void fill_sheet_menu
> app/render_libart.c probably broken on X11

Actually, obsolete. We'll get rid of it.

> app/sheet.c:207 move message_notice out of loop
> app/ps_utf8.c : not yet build on win32

What's wrong with it ?

> app/render_eps.c : some further utf8 cleaning needed
> 
> The current plan is:
> - merge all Gtk2 specific changes done on TARGET_GTK2_0 into HEAD.
>   (it would be much simpler if I haven't tried to keep both trunks
>    in sync, see the other ChangeLog.)
> - merge in utf8-ness (my branch apperas to be almost clean)
> - do one large commit, which allows to build with GTK2
>   (some of Akira's changes probably will vanish by this, at least
>    the reformatting which IMHO should never had happen [Dia's tab
>    size is 8 not 2!] and some of the XIM stuff which I neither can 
>    test nor does it seem to be not applicable with GTK2)

tabs are evil. XIM still seems applicable, where GTK2 doesn't already take
care of it !

> - add a file 'todo.gtk2' which is an extract from the todo.hb
>   with some additional steps to be taken. Post it to the 
>   mailing list.

> [the following tasks could easy be shared]
> - let someone else do the auto-break stuff

I'm on it.

>   - no more: libunicode, separte gdk-pixbuf, charconv.[hc], HAVE_DIRENT

charconv is still needed, at least to recover the pre 0.90 dia files (damn
libxml1). Has libunicode's functionality been swallowed by gtk or glib ? We
still need stuff to extract a single unichar out of an utf8 string,
iterators, etc...

>   - require: gtk2, libxml2

at long last.
 
> - convert Renderer interface to GObject
>   - change init_*_*ops() to *_class_init, virtual function support 
>     (should be done by/with the help of GObject)
>   - lib/render.c includes most of the base DiaRenderer
>     plug-ins/renderer.inc has code to approximate ellipse by arcs
>     app/renderer_gdk.c : has a bezier by line approximation

>   - try to involve original plug-in authors (to at least 
>     take a look if something got broken during the transition)
 
> - make PlugInInfo opaque again in the good tradition of information 
>   hiding and clean-up some other global vars which where intoduced 
>   by the shape editor patch
>   - try to move object_types_detect_nosheet() etc out of object.h ...
>   - (see fixmes above)
 
> - split out HAVE_FREETYPE stuff in own files *_ft2.c to keep 
>   the know-how for later possible reintegration

Yep.
 
> - remove the font name trough gettext hack
> - do basic GdkFont -> Pango conversion

These are to be done in the same step. Pango will do the font matching. I
plan to do that during the end of week 25, perhaps in coordination with
Lars (beer, pizza, irc).

> - remove the scrolling menu hack (Gtk2 does handle such)

 
> - make it compile without GTK_ENABLE_BROKEN

what's it ?
 
> - make it compile with GTK_DISABLE_DEPRECATED
>   - maybe split in parts by un-defining it in single files,
>     which need more work (diagram_tree.c, ...)
> 
> - simplify render_pixmap.c : by inheritance from DiaGdkRenderer 

 
> - fix Arrow widget to properly scale and make thicker lines
>   again (they IMHO looked much prettier)
> 
> - remove LIBXML1 #hell

Can be done now.
 
> - remove as much as obvious not needed anymore GNOME #hell
 
> - do some gui tweaking to try to conform to new HIG (at 
>   least button ordering)
>   - try to involve the Gnome Useability Group
>   - maybe add hooks for online help, cause any widget
>     probably needs to be touched anyway

 
> - try again to get a 'complete' hotkey/accelerator
>   specification
 
> - common default object properties load/save implementation 
>   to be merged 
>   - remove all object implementation specifc 
> 
> - make a plan about further GObject-ification
>   Some thoughts on this at http://hans.breuer.org/dia/dia-todo.htm
> 
> Future:
> 
> - Make printing backends runtime configurable plug-in


What's the status of the UTF8 #hell (UNICODE_WORK_IN_PROGRESS and
GTK_TALKS_UTF8) ?

	-- Cyrille

-- 
Grumpf.