Porting panel plugins to Gtk3

André Miranda andreldm1989 at gmail.com
Tue May 31 22:19:57 CEST 2016


Hi Landry,
Yes, I'd like to be the maintainer of this plugin, but I don't have a @
xfce.org mail, it could be andre at xfce.org or andre.miranda at xfce.org.
Do you guys also need my SSH public key?

Thnx!
André Miranda

On Tue, May 31, 2016 at 4:15 PM, Landry Breuil <landry.breuil at gmail.com>
wrote:

> harald judt (who was maintaining it so far) is fine with merging this
> - if you want to be the new maintainer of that plugin, mail accounts
> at xfce.org so that we can set you up your git account so that you can
> merge/push things to git.xfce.org yourself :)
>
> Thanks!
>
> Landry
>
> On Fri, May 27, 2016 at 1:28 AM, André Miranda <andreldm1989 at gmail.com>
> wrote:
> > Hello there guys,
> > Thanks to Landry's very descriptive commits, I was able to port Xfce
> Panel's
> > single most important plugin: Xfce4-Eyes-Plugin!
> > Jokes apart, I just wanted to try it out with a simple plugin before
> porting
> > others.
> > Here is code: https://github.com/andreldm/xfce4-eyes-plugin
> > (how convenient a push request would be...)
> >
> > Cheers,
> > André Miranda
> >
> > On Sun, May 1, 2016 at 9:02 AM, Landry Breuil <landry at xfce.org> wrote:
> >>
> >> Hi,
> >>
> >> so, if we want to have Xfce 4.14 with Gtk+3 in a foreseeable future, at
> >> some point porting has to resume/restart.. in the past days, i've spent
> >> some time porting *some* of the panel plugins i *somewhat* maintain, and
> >> here are some tips and tricks:
> >>
> >> * i'm targetting Gtk+3 only, bye-bye Gtk+2. Technically it would be
> >>   doable to support both with some #ifdefs, but is there a point..
> >> * i'm going for a feature-parity target first. No UI revamp, no
> >>   revolution. Ideally, i'd like to move dialog construction to .ui files
> >> / GtkBuilder, that might come next. Same thing, using cairo drawing
> >> instead of abusing progressbars for monitors/meters might be nice,
> >> maybe next.
> >> * devhelp is your friend to browse the Gtk+3 doc, as is
> >> https://developer.gnome.org/gtk3/stable/
> >> * there's an ongoing discussion to know if we finally target 3.14 or
> >>   3.20, as there are some 'breaking' changes wrt styling in >= 3.16 with
> >> css providers (see
> >> https://blogs.gnome.org/mclasen/2016/04/29/yet-another-gtk-update/)
> >> * styling that worked in 3.14 is considered deprecated in 3.16/3.20, so
> >>   has to be #ifdef'ed, see for example
> >>
> http://git.xfce.org/panel-plugins/xfce4-systemload-plugin/tree/panel-plugin/systemload.c#n448
> >> * most of the changes are mechanical, Replacing XfceHVBox /
> >>   GtkHBox/GtkVBox by GtkBox, using GtkOrientable, replacing GtkTable by
> >> GtkGrid, replacing GTK_STOCK* macros by their gtk equivalent names,
> >> replacing GtkToggleButton/GtkCheckBox by GtkSwitch, replacing GdkColor
> >> by GdkRGBA, usinc GtkCssProvider instead of setting bg/base colors.. all
> >> this is documented in Gtk+3 doc when a widget is deprecated, and the
> >> general migration doc is here :
> >> https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
> >>
> >> So far, i've ported over the following plugins (have a look at the
> >> commits to see what changes are needed):
> >>
> >> http://git.xfce.org/panel-plugins/xfce4-systemload-plugin/log/
> >> http://git.xfce.org/panel-plugins/xfce4-mpc-plugin/log/
> >> http://git.xfce.org/panel-plugins/xfce4-diskperf-plugin/log/
> >> http://git.xfce.org/panel-plugins/xfce4-fsguard-plugin/log/
> >> http://git.xfce.org/panel-plugins/xfce4-datetime-plugin/log/
> >> http://git.xfce.org/panel-plugins/xfce4-smartbookmark-plugin/log/
> >>
> >> Not everything is perfect, but things are moving nicely.
> >>
> >> To 'compare' gtk2 and gtk3 version and have both in the same panel, i
> >> use the following trick (for a 'foo' panel plugin):
> >>   * in /usr/share/xfce4/panel/plugins/, copy foo.desktop to
> >> foo-git.desktop
> >>   * in foo-git.desktop, only keep untranslated Name/Comment and append
> >> 'git' to Name to differentiate plugins
> >>   * append X-XFCE-API=2.0 to foo-git.desktop
> >>   * append '-git' to X-XFCE-Module line
> >>   * symlink path/to/my/workdir/panel-plugin/.libs/libfoo.so to
> >> /usr/lib/xfce4/panel/plugins/libfoo-git.so
> >>
> >> xfce4-panel -a should allow you to load the git version of the plugin,
> >> without overwriting the 'released' gtk2 version.
> >>
> >> Mandatory screenshots using clearklooks theme, one with gtk3 versions
> >> http://i.imgur.com/UwZEaGN.png (not all the checkbox are migrated to
> >> gtkswitch, and i know systemload dialog is a bit huge...)
> >> and the same thing with the last release of the same plugins
> >> http://i.imgur.com/aS44yQV.png and the two panels with the same plugins
> >> loaded using default config. Okay, progressbars dont look the same,
> >> buttons might be a git bigger...
> >>
> >> All that to say that it's an easy task for someone who wants to start
> >> playing with gtk code and porting to gtk3 - all help on this is welcome!
> >> If there's a plugin you use and care about, and that looks
> >> abandoned/unmaintained, grab the git master, try to apply the same
> >> changes, and post patches to bugzilla/the list.
> >>
> >> Of course, feedback, criticism and testing are welcome! I've only tested
> >> those changes on my OpenBSD desktop with Gtk 3.20.3..
> >>
> >> Landry
> >> _______________________________________________
> >> Xfce4-dev mailing list
> >> Xfce4-dev at xfce.org
> >> https://mail.xfce.org/mailman/listinfo/xfce4-dev
> >
> >
> >
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> > Xfce4-dev at xfce.org
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