Mer/Documentation/Vala control panel
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Mer needs new control panels. But not everyone knows C, but they may be proficient in C#. Vala is a language with C#-like syntax, that compiles to C, which makes it perfect for writing CPAs which are (to my knowledge) C only. But, documentation on Vala is rather lacking.
An example can be found here:
/*
* cpa.vala
*
* Copyright 2009 Faheem Pervez <qwerty12>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
using Osso;
using Hildon;
using Gtk;
public Hildon.Program program;
public Gtk.Widget dialog;
Status execute(Context *osso, void* data, bool user_activated)
{
osso = new Osso.Context("vala-test-applet", "0.1", false, null);
program = Hildon.Program.get_instance();
data = new Hildon.Window();
program.add_window((Hildon.Window)data);
dialog = new Hildon.Note.information ((Hildon.Window)data, "Hey, I'ma CPA written in Vala.\n"+"The \"programmer\" who wrote me sucks; but he hopes \nthat this can be used for something.");
((Gtk.Window)dialog).set_modal(true);
((Gtk.Window)dialog).set_position(WindowPosition.CENTER_ALWAYS);
((Gtk.Dialog)dialog).run();
dialog.destroy();
delete osso;
return Status.OK;
}
//valac -C --pkg libosso --pkg hildon-1 cpa.vala ; gcc `pkg-config --cflags libosso hildon-1` -fPIC -c cpa.c ; gcc -module -avoid-version -shared -Wl,-soname,cpa.so -o cpa.so cpa.o -lc
Save the above as "cpa.vala". Because valac seems to be more accustomed for making programs, you have to use valac's -C option which'll output the generated C code and gcc can then be used to make it into a library.
Improvements very much welcomed.