Neues Programm "OSDneo2": das Python-Script "OSD Neo2" für Linux zeigt auf dem X-Server die gerade verwendete Ebene von Neo2 an. Version 0.12.

git-svn-id: https://svn.neo-layout.org@2078 b9310e46-f624-0410-8ea1-cfbb3a30dc96

31 files changed, 2663 insertions, 0 deletions

diff --git a/linux/osd/ChangeLog b/linux/osd/ChangeLog
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+2009-09-07  Martin Zuther  <code@mzuther.de>
+
+	* Version 0.12
+
+	* osd_neo2.py: renamed to "OSDneo2.py"
+
+	* settings.py: renamed to "Settings.py"
+
+	* settings.py: settings now stored in "~/.OSDneo2"
+
+2009-09-05  Martin Zuther  <code@mzuther.de>
+
+	* osd_neo2.py (OSDneo2): added new INI file option
+	'selected_keyboard_driver' and corresponding matrices for
+	switching between the two Neo2 keyboard drivers ("xkbdmap" and
+	"xmodmap")
+
+2009-09-04  Martin Zuther  <code@mzuther.de>
+
+	* osd_neo2.py (OSDneo2): layer switching is now controlled via
+	  matrices
+
+	* caught exceptions for files that cannot be accessed or are missing
+
+2009-09-01  Martin Zuther  <code@mzuther.de>
+
+	* osd_neo2.py (OSDneo2): changed X11 keyboard defines to official
+	  Neo2 values
+
+	* SimpleXkbWrapper.py (SimpleXkbWrapper.__init__): changed
+	  "c_bool" return value of function "XkbGetState" to
+	  "c_int" (compatibility to Python v2.5)
+
+2009-08-31  Martin Zuther  <code@mzuther.de>
+
+	* version: 0.11
+
+	* removed start scripts and "evdev" library
+
+	* SimpleXkbWrapper.py (SimpleXkbWrapper): new class that uses X
+	  Keyboard Extension v1.0 to poll keyboard modifier states
+
+2009-08-28  Martin Zuther  <code@mzuther.de>
+
+	* removed support for Win32 (there are better alternatives)
+
+2009-08-27  Martin Zuther  <code@mzuther.de>
+
+	* version: 0.10
+
+	* first public release
diff --git a/linux/osd/LICENSE b/linux/osd/LICENSE
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+++ b/linux/osd/LICENSE
@@ -0,0 +1,674 @@
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+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
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+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
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+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
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+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
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+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/linux/osd/OSDneo2.py b/linux/osd/OSDneo2.py
new file mode 100755
index 0000000..e2b69ff
--- /dev/null
+++ b/linux/osd/OSDneo2.py
@@ -0,0 +1,603 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""OSD Neo2
+   ========
+   On screen display for learning the keyboard layout Neo2
+
+   Copyright (c) 2009 Martin Zuther (http://www.mzuther.de/)
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   Thank you for using free software!
+
+"""
+
+# Here follows a plea in German to keep the comments in English so
+# that you may understand them, dear visitor ...
+#
+# Meine Kommentare in den Quellcodes sind absichtlich auf Englisch
+# gehalten, damit Leute, die im Internet nach Lösungen suchen, den
+# Code nachvollziehen können.  Daher bitte ich darum, zusätzliche
+# Kommentare ebenfalls auf Englisch zu schreiben.  Vielen Dank!
+
+import pygtk
+pygtk.require('2.0')
+import gtk
+import gobject
+
+import gettext
+import locale
+import os
+import time
+
+import SimpleXkbWrapper
+from optparse import OptionParser
+from Settings import *
+
+# set standard localisation for application
+locale.setlocale(locale.LC_ALL, '')
+
+# initialise localisation settings
+module_path = os.path.dirname(os.path.realpath(__file__))
+gettext.bindtextdomain('OSDneo2', os.path.join(module_path, 'po/'))
+gettext.textdomain('OSDneo2')
+_ = gettext.lgettext
+
+# specifies distance between main keyboard and numeric keyboard (in pixels)
+DISTANCE_LAYOUT_BLOCKS = 10
+
+class OSDneo2:
+    # layer matrix for "xkbdmap" with disabled Locks (plain)
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        1 |       4 |
+    # | Mod3 on   |        3 |       6 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        2 |       0 |
+    # | Mod3 on   |        5 |       0 |
+    # |-----------+----------+---------|
+    xkbdmap_layers_plain = {'   ': 1, \
+                            ' 3 ': 3, \
+                            '  4': 4, \
+                            ' 34': 6, \
+                            'S  ': 2, \
+                            'S3 ': 5, \
+                            'S 4': 0, \
+                            'S34': 0}
+
+    # layer matrix for "xkbdmap" with enabled Caps Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        7 |       4 |
+    # | Mod3 on   |        3 |       6 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        8 |       0 |
+    # | Mod3 on   |        5 |       0 |
+    # |-----------+----------+---------|
+    xkbdmap_layers_caps_lock = {'   ': 7, \
+                                ' 3 ': 3, \
+                                '  4': 4, \
+                                ' 34': 6, \
+                                'S  ': 8, \
+                                'S3 ': 5, \
+                                'S 4': 0, \
+                                'S34': 0}
+
+    # layer matrix for "xkbdmap" with enabled Mod4 Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        4 |       1 |
+    # | Mod3 on   |        6 |       3 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        0 |       2 |
+    # | Mod3 on   |        0 |       5 |
+    # |-----------+----------+---------|
+    xkbdmap_layers_mod4_lock = {'   ': 4, \
+                                ' 3 ': 6, \
+                                '  4': 1, \
+                                ' 34': 3, \
+                                'S  ': 0, \
+                                'S3 ': 0, \
+                                'S 4': 2, \
+                                'S34': 5}
+
+    # layer matrix for "xkbdmap" with enabled Caps+Mod4 Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        4 |       7 |
+    # | Mod3 on   |        6 |       3 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        0 |       8 |
+    # | Mod3 on   |        0 |       5 |
+    # |-----------+----------+---------|
+    xkbdmap_layers_caps_mod4_lock = {'   ': 4, \
+                                     ' 3 ': 6, \
+                                     '  4': 7, \
+                                     ' 34': 3, \
+                                     'S  ': 0, \
+                                     'S3 ': 0, \
+                                     'S 4': 8, \
+                                     'S34': 5}
+
+    # layer matrix for "xmodmap" with disabled Locks (plain)
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        1 |       4 |
+    # | Mod3 on   |        3 |       6 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        2 |       0 |
+    # | Mod3 on   |        5 |       6 |
+    # |-----------+----------+---------|
+    xmodmap_layers_plain = {'   ': 1, \
+                            ' 3 ': 3, \
+                            '  4': 4, \
+                            ' 34': 6, \
+                            'S  ': 2, \
+                            'S3 ': 5, \
+                            'S 4': 0, \
+                            'S34': 6}
+
+    # layer matrix for "xmodmap" with enabled Caps Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        2 |       0 |
+    # | Mod3 on   |        5 |       6 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        2 |       0 |
+    # | Mod3 on   |        5 |       6 |
+    # |-----------+----------+---------|
+    xmodmap_layers_caps_lock = {'   ': 2, \
+                                ' 3 ': 5, \
+                                '  4': 0, \
+                                ' 34': 6, \
+                                'S  ': 2, \
+                                'S3 ': 5, \
+                                'S 4': 0, \
+                                'S34': 6}
+
+    # layer matrix for "xmodmap" with enabled Mod4 Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        4 |       4 |
+    # | Mod3 on   |        3 |       6 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        0 |       0 |
+    # | Mod3 on   |        5 |       6 |
+    # |-----------+----------+---------|
+    xmodmap_layers_mod4_lock = {'   ': 4, \
+                                ' 3 ': 3, \
+                                '  4': 4, \
+                                ' 34': 6, \
+                                'S  ': 0, \
+                                'S3 ': 5, \
+                                'S 4': 0, \
+                                'S34': 6}
+
+    # layer matrix for "xmodmap" with enabled Caps+Mod4 Lock
+    #
+    # |-----------+----------+---------|
+    # | Shift off | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        0 |       0 |
+    # | Mod3 on   |        5 |       5 |
+    # |-----------+----------+---------|
+    # | Shift on  | Mod4 off | Mod4 on |
+    # |-----------+----------+---------|
+    # | Mod3 off  |        0 |       0 |
+    # | Mod3 on   |        5 |       5 |
+    # |-----------+----------+---------|
+    xmodmap_layers_caps_mod4_lock = {'   ': 0, \
+                                     ' 3 ': 5, \
+                                     '  4': 0, \
+                                     ' 34': 5, \
+                                     'S  ': 0, \
+                                     'S3 ': 5, \
+                                     'S 4': 0, \
+                                     'S34': 5}
+
+
+    def __init__(self):
+        # initialise version information, ...
+        version_long = _('%(description)s\n%(copyrights)s\n\n%(license)s') % \
+            {'description':settings.get_description(True), \
+                 'copyrights':settings.get_copyrights(), \
+                 'license':settings.get_license(True)}
+        # ... ,usage information and...
+        usage = 'Usage: %(cmd_line)s [options]' % \
+            {'cmd_line':settings.get_variable('cmd_line')}
+        # ... the command line parser itself
+        parser = OptionParser(usage=usage, version=version_long)
+
+        # parse command line
+        (options, args) = parser.parse_args()
+
+        # setting: display main keyboard (Boolean)
+        self.display_main_keyboard = (settings.get( \
+                'settings', 'display_main_keyboard', str(True)) == "True")
+
+        # setting: display numeric keyboard (Boolean)
+        self.display_numeric_keyboard = (settings.get( \
+                'settings', 'display_numeric_keyboard', str(True)) == "True")
+
+        # setting: magnification of keyboard (in percent)
+        self.magnification = int(settings.get( \
+                'settings', 'magnification_in_percent', str(100)))
+
+        # setting: interval of update timer (in milliseconds)
+        self.polling = int(settings.get( \
+                'settings', 'polling_in_milliseconds', str(100)))
+
+        # setting: selected driver ("xkbdmap" or "xmodmap")
+        self.keyboard_driver = settings.get( \
+            'settings', 'selected_keyboard_driver', 'xkbdmap')
+
+        # initialise core keyboard
+        self.initialise_keyboard()
+
+        # set currently selected keyboard layer to defaults (for your
+        # information, "leer" is German for "empty")
+        self.current_modifier = 'leer'
+        self.mod_states = None
+
+        # create main window and set its title
+        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+        self.window.set_title(settings.get_description(False))
+
+        # allow window to get killed and keep it on top
+        self.window.connect('delete-event', self.on_delete_event)
+        self.window.set_keep_above(True)
+
+        # restore old window position
+        x = int(settings.get('settings', 'window_position_x', str(0)))
+        y = int(settings.get('settings', 'window_position_y', str(0)))
+        if (x > 0) and (y > 0):
+            self.window.move(x, y)
+
+        # create an HBox, ...
+        self.hbox = gtk.HBox(False, DISTANCE_LAYOUT_BLOCKS)
+        self.window.add(self.hbox)
+
+        # ..., attach image for main keyboard (if requested) ...
+        if self.display_main_keyboard:
+            self.image_main = gtk.Image()
+            self.hbox.pack_start(self.image_main)
+
+        # ... and attach image for numeric keyboard (if requested)
+        if self.display_numeric_keyboard:
+            self.image_numeric = gtk.Image()
+            self.hbox.pack_start(self.image_numeric)
+
+        # the window size depends on the loaded images and
+        # "self.magnification", so we'll set it later
+        self.window_width = -1
+        self.window_height = -1
+
+        # later on, the keyboard layout will only be drawn when the
+        # selected keyboard layer changes, so we'll force the initial
+        # drawing
+        self.update_display()
+
+        # show everything in window
+        self.window.show_all()
+
+        # update status of modifier leys once ...
+        self.update_status()
+
+        # ... before starting the timer for polling modifier keys
+        gobject.timeout_add(self.polling, self.update_status)
+
+
+    def main(self):
+        # main event loop
+        gtk.main()
+
+
+    def on_delete_event(self, widget, event, data=None):
+        # store current window position, ...
+        (x,y) = self.window.get_position()
+        settings.set('settings', 'window_position_x', str(x))
+        settings.set('settings', 'window_position_y', str(y))
+
+        # ... and quit the application
+        gtk.main_quit()
+        return False
+
+
+    def initialise_keyboard(self):
+        # initialise wrapper for the X Keyboard Extension (v1.0) and
+        # open connection to X display
+        self.xkb = SimpleXkbWrapper.SimpleXkbWrapper()
+
+        # we'll use the default X display
+        display_name = None
+
+        # we need version 1.0 of the X Keyboard Extension
+        major_in_out = 1
+        minor_in_out = 0
+
+        # open X display and check for compatible X Keyboard Extension
+        try:
+            ret = self.xkb.XkbOpenDisplay(display_name, major_in_out, \
+                                              minor_in_out)
+        except OSError, error:
+            self.error_dialog(_('Error'), error)
+
+        # store handle to X display for later use
+        self.display_handle = ret['display_handle']
+
+
+    def update_status(self):
+        """
+        This function is called by the timer in order to check the
+        status of modifier keys.
+        """
+
+        # we only have to update the main window if the modifier
+        # states have changed, so store the current modifier states
+        old_mod_states = self.mod_states
+
+        # select the core keyboard ...
+        device_spec = self.xkb.XkbUseCoreKbd
+
+        # ... and poll modifier state
+        xkbstaterec = self.xkb.XkbGetState(self.display_handle, device_spec)
+        self.mod_states = self.xkb.ExtractLocks(xkbstaterec)
+
+        # as promised above, we'll only update the main window if the
+        # modifier states have changed
+        if self.mod_states != old_mod_states:
+            self.set_current_modifier()
+
+        # keep the timer running
+        return True
+
+
+    def set_current_modifier(self):
+        # we'll keep CPU usage low by updating the main window only
+        # when the selected keyboard layer has changed, so let's store
+        # the currently selected keyboard layer
+        old_modifier = self.current_modifier
+
+        # please don't confuse the modifiers defined by Neo2 ("MOD3"
+        # in the following section) with modifiers defined by X11
+        # ("mod3") -- let's set the modifiers for accessing the layer
+        # matrices
+
+        # user selected Neo2 keyboard driver "xkbdmap"
+        if self.keyboard_driver == 'xkbdmap':
+            if self.mod_states['shift']:
+                SHIFT = 'S'
+            else:
+                SHIFT = ' '
+
+            if self.mod_states['mod5']:
+                MOD3 = '3'
+            else:
+                MOD3 = ' '
+
+            if self.mod_states['mod3']:
+                MOD4 = '4'
+            else:
+                MOD4 = ' '
+
+            # get status of locks
+            CAPS_LOCK = self.mod_states['lock_lock']
+            MOD4_LOCK = self.mod_states['mod2_lock']
+        # user selected Neo2 keyboard driver "xmodmap"
+        elif self.keyboard_driver == 'xmodmap':
+            if self.mod_states['shift']:
+                SHIFT = 'S'
+            else:
+                SHIFT = ' '
+
+            if self.mod_states['mod3']:
+                MOD4 = '4'
+            else:
+                MOD4 = ' '
+
+            if self.mod_states['group'] == 0:
+                MOD3 = ' '
+            elif self.mod_states['group'] == 1:
+                MOD3 = '3'
+            elif self.mod_states['group'] == 2:
+                MOD3 = '3'
+                MOD4 = '4'
+
+            # get status of locks
+            CAPS_LOCK = self.mod_states['shift_lock']
+            MOD4_LOCK = self.mod_states['mod3_lock']
+        # user selected invalid Neo2 keyboard driver
+        else:
+            error = _('Invalid keyboard driver "%s" selected.') % \
+                self.keyboard_driver
+            self.error_dialog(_('Error'), error)
+
+        # assemble matrix key
+        MODIFIERS = '%s%s%s' % (SHIFT, MOD3, MOD4)
+
+        # select correct matrix and get current layer for Neo2
+        # keyboard driver "xkbdmap" ...
+        if self.keyboard_driver == 'xkbdmap':
+            if CAPS_LOCK:
+                if MOD4_LOCK:
+                    current_modifier_temp = \
+                        self.xkbdmap_layers_caps_mod4_lock[MODIFIERS]
+                else:
+                    current_modifier_temp = \
+                        self.xkbdmap_layers_caps_lock[MODIFIERS]
+            elif MOD4_LOCK:
+                current_modifier_temp = \
+                    self.xkbdmap_layers_mod4_lock[MODIFIERS]
+            else:
+                current_modifier_temp = \
+                    self.xkbdmap_layers_plain[MODIFIERS]
+        # ... or keyboard driver "xmodmap"
+        elif self.keyboard_driver == 'xmodmap':
+            if CAPS_LOCK:
+                if MOD4_LOCK:
+                    current_modifier_temp = \
+                        self.xmodmap_layers_caps_mod4_lock[MODIFIERS]
+                else:
+                    current_modifier_temp = \
+                        self.xmodmap_layers_caps_lock[MODIFIERS]
+            elif MOD4_LOCK:
+                current_modifier_temp = \
+                    self.xmodmap_layers_mod4_lock[MODIFIERS]
+            else:
+                current_modifier_temp = \
+                    self.xmodmap_layers_plain[MODIFIERS]
+        else:
+            error = _('Invalid keyboard driver "%s" selected.') % \
+                self.keyboard_driver
+            self.error_dialog(_('Error'), error)
+
+        # for your information, "Ebene" is German for "layer", while
+        # "leer" is German for "empty"
+        if current_modifier_temp < 1:
+            self.current_modifier = 'leer'
+        # add Caps Lock to layers 1 and 2
+        elif current_modifier_temp > 6:
+            self.current_modifier = 'ebene%d-caps' % \
+                (current_modifier_temp - 6)
+        # plain (i.e. no locks)
+        else:
+            self.current_modifier = 'ebene%d' % current_modifier_temp
+
+        # as promised above, we'll only update the main window if the
+        # selected keyboard layer has changed
+        if self.current_modifier != old_modifier:
+            self.update_display()
+
+
+    def update_display(self):
+        if self.display_main_keyboard:
+            # check whether image for main keyboard exists
+            path_main = os.path.join(module_path, 'images', \
+                                         'neo2-hauptfeld_' + \
+                                         self.current_modifier + '.png')
+            if not os.path.exists(path_main):
+                error = _('The following image file was not found:\n"%s"') % \
+                    path_main
+                self.error_dialog(_('Error'), error)
+
+            # load image for main keyboard in PixBuf, ...
+            pixbuf_main = gtk.gdk.pixbuf_new_from_file(path_main)
+
+            # ... re-size it according to "self.magnification" ...
+            if self.magnification != 100:
+                pixbuf_main = pixbuf_main.scale_simple( \
+                    int(pixbuf_main.get_width() * \
+                            self.magnification / 100), \
+                        int(pixbuf_main.get_height() * \
+                                self.magnification / 100), \
+                    gtk.gdk.INTERP_BILINEAR)
+            # ... and copy it to the main window
+            self.image_main.set_from_pixbuf(pixbuf_main)
+
+        if self.display_numeric_keyboard:
+            # check whether image for numeric keyboard exists
+            path_numeric = os.path.join(module_path, 'images', \
+                                            'neo2-ziffernfeld_' + \
+                                            self.current_modifier + '.png')
+            if not os.path.exists(path_numeric):
+                error = _('The following image file was not found:\n"%s"') % \
+                    path_numeric
+                self.error_dialog(_('Error'), error)
+
+            # load image for numeric keyboard in PixBuf, ...
+            pixbuf_numeric = gtk.gdk.pixbuf_new_from_file(path_numeric)
+            # ... re-size it according to "self.magnification" ...
+            if self.magnification != 100:
+                pixbuf_numeric = pixbuf_numeric.scale_simple( \
+                    int(pixbuf_numeric.get_width() * \
+                            self.magnification / 100), \
+                        int(pixbuf_numeric.get_height() * \
+                                self.magnification / 100), \
+                    gtk.gdk.INTERP_BILINEAR)
+            # ... and copy it to the main window
+            self.image_numeric.set_from_pixbuf(pixbuf_numeric)
+
+        # the window size depends on the loaded images and
+        # "self.magnification", so we'll set it here if not yet done
+        if (self.window_width == -1) or (self.window_height == -1):
+            # only main keyboard has been requested
+            if self.display_main_keyboard and not self.display_numeric_keyboard:
+                self.window_width = pixbuf_main.get_width()
+                self.window_height = pixbuf_main.get_height()
+            # only numeric keyboard has been requested
+            elif self.display_numeric_keyboard and not \
+                    self.display_main_keyboard:
+                self.window_width = pixbuf_numeric.get_width()
+                self.window_height = pixbuf_numeric.get_height()
+            # only main and numeric keyboard have been requested
+            else:
+                self.window_width = pixbuf_main.get_width() + \
+                    DISTANCE_LAYOUT_BLOCKS + pixbuf_numeric.get_width()
+                # set window height to highest image (in case they differ)
+                if pixbuf_main.get_height() >= pixbuf_numeric.get_height():
+                    self.window_height = pixbuf_main.get_height()
+                else:
+                    self.window_height = pixbuf_numeric.get_height()
+
+            # re-size main window accordingly
+            self.window.resize(self.window_width, self.window_height)
+
+
+    def error_dialog(self, title, error):
+        # display a dialog with the given error ...
+        dialog = gtk.Dialog(title, None, gtk.DIALOG_NO_SEPARATOR, \
+                                (gtk.STOCK_OK, gtk.RESPONSE_ACCEPT))
+        dialog.vbox.pack_start(gtk.Label(str(error)))
+        dialog.show_all()
+        dialog.run()
+        # ... and exit after user has pressed "Ok"
+        exit(1)
+
+
+if __name__ == '__main__':
+    # check whether the script runs with superuser rights
+    if (os.getuid() == 0) or (os.getgid() == 0):
+        print _('For security reasons you may not run this application with superuser rights.')
+
+    base = OSDneo2()
+    base.main()
diff --git a/linux/osd/README b/linux/osd/README
new file mode 100644
index 0000000..8aaa0a0
--- /dev/null
+++ b/linux/osd/README
@@ -0,0 +1,118 @@
+************************************************************************
+*                                                                      *
+*   OSD Neo2                      Copyright (c) 2009 Martin Zuther     *
+*                                                                      *
+*   On screen display for learning the keyboard layout Neo2            *
+*                                                                      *
+*   This program comes with ABSOLUTELY NO WARRANTY.  This is free      *
+*   software, and you are welcome to redistribute it under certain     *
+*   conditions.  Please read the file "LICENSE" for details.           *
+*                                                                      *
+************************************************************************
+
+
+                              Einführung
+                              ==========
+
+Das Programm "OSD Neo2" für Linux zeigt die Zeichen der gerade
+verwendeten Ebene des Neo2-Tastaturlayouts auf dem Bildschirm an.
+
+
+                            Abhängigkeiten
+                            ==============
+
+Die folgenden Programme und Bibliotheken werden für "OSD Neo2"
+benötigt (frühere oder spätere Versionen können allerdings genauso gut
+funktionieren):
+
+* Python 2.6
+  Debian-Paket: python2.6
+  Homepage: http://www.python.org/
+
+* PyGTK 2.14
+  Debian-Paket: python-gtk2
+  Homepage: http://www.pygtk.org/
+
+Die meisten Linux-Benutzer von Ubuntu können vermutlich gleich
+loslegen, ohne etwas installieren zu müssen.
+
+
+                             Installation
+                             ============
+
+Eigentlich muss nach der Installation der Abhängigkeiten (s. oben) nur
+der Inhalt des Archivs "OSDneo2_x.xx.tar.gz" in ein Verzeichnis
+entpackt werden, dann kann es losgehen: einfach die Konsole öffnen, in
+das Verzeichnis des Programms wechseln und ./OSDneo2.py eingeben
+(diese Datei muss natürlich ausführbar sein).
+
+
+                                Update
+                                ======
+
+Soll das Programm im gleichen Ordner wie vorher installiert werden,
+sollte dessen Inhalt vorher gelöscht werden.  Die Einstellungen des
+Programms werden im Homeverzeichnis jedes Benutzers gespeichert (siehe
+nächster Abschnitt) und bleiben daher erhalten.
+
+
+                             Einstellungen
+                             =============
+
+Die Einstellungen von "OSD Neo2" werden in der Datei "~/.OSDneo2"
+gespeichert.  Um die Einstellungen zu ändern, muss "OSD Neo2" zuerst
+beendet werden, danach kann die Datei ".OSDneo2" mit einem Texteditor
+bearbeitet werden.  Wenn alles schief geht, kann die Datei ".OSDneo2"
+einfach gelöscht werden, sie wird dann beim nächsten Start von "OSD
+Neo2" neu angelegt.
+
+* display_main_keyboard:
+
+  Legt fest, ob das Hauptfeld der Tastatur angezeigt werden soll
+  ("True") oder nicht ("False").
+
+* display_numeric_keyboard:
+
+  Legt fest, ob das Ziffernfeld der Tastatur angezeigt werden soll
+  ("True") oder nicht ("False").
+
+* magnification_in_percent:
+
+  Hier kann man angeben, wie die geladenen Tastatur-Bilder vergrößert
+  oder verkleinert werden sollen (Angabe in Prozent).  "Einfache"
+  Brüche wie 50% (1/2), 75% (3/4) oder 200% (2/1) sehen im Normalfall
+  besser aus als 82.5% (33/40).
+
+* polling_in_milliseconds:
+
+  Gibt das Zeitintervall an, mit dem die Tastatur eingelesen wird
+  (Angabe in Millisekunden).  Höhere Werte benötigen weniger
+  CPU-Zyklen und sind vor allem für ältere Rechner geeignet -- dafür
+  dauert es länger, bis das Programm auf gedrückte Tasten reagiert.
+  Umgekehrt wird der Rechner bei niedrigeren Werten stärker
+  beansprucht und das Programm reagiert schneller auf gedrückte
+  Tasten.  Vermutlich muss diese Einstellung nicht geändert werden.
+
+* selected_keyboard_driver:
+
+  Gibt an, welcher Neo2-Tastaturtreiber verwendet wird.  Gültige
+  Einstellungen sind "xkbdmap" (Voreinstellung) und "xmodmap".
+
+* window_position_x / window_position_y:
+
+  Die Bildschirm-Position von "OSD Neo2" wird beim Beenden hier
+  gespeichert.  Vermutlich muss diese Einstellung nur geändert werden,
+  wenn das Programm aus Versehen "vom Bildschirm geschoben" wurde.  In
+  diesem Fall können beide Werte einfach auf "0" gesetzt werden.
+
+
+                               Kontakt
+                               =======
+
+Ich höre gerne von Anwendern meiner Programme.  Wenn Du also Zeit und
+Lust hast, schreib mir eine Email (die Adresse gibt's unter
+http://www.mzuther.de/), gerne auch mit Vorschlägen, Verbesserungen
+oder Bugfixes!
+
+Und jetzt -- vielen Dank für die Verwendung freier Software.  Ich
+hoffe, sie gefällt Dir...!
diff --git a/linux/osd/Settings.py b/linux/osd/Settings.py
new file mode 100644
index 0000000..e20bccc
--- /dev/null
+++ b/linux/osd/Settings.py
@@ -0,0 +1,302 @@
+# -*- coding: utf-8 -*-
+
+"""OSD Neo2
+   ========
+   On screen display for learning the keyboard layout Neo2
+
+   Copyright (c) 2009 Martin Zuther (http://www.mzuther.de/)
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   Thank you for using free software!
+
+"""
+
+# Here follows a plea in German to keep the comments in English so
+# that you may understand them, dear visitor ...
+#
+# Meine Kommentare in den Quellcodes sind absichtlich auf Englisch
+# gehalten, damit Leute, die im Internet nach Lösungen suchen, den
+# Code nachvollziehen können.  Daher bitte ich darum, zusätzliche
+# Kommentare ebenfalls auf Englisch zu schreiben.  Vielen Dank!
+
+import ConfigParser
+import gettext
+import locale
+import os
+import types
+
+# initialise localisation settings
+module_path = os.path.dirname(os.path.realpath(__file__))
+gettext.bindtextdomain('OSDneo2', os.path.join(module_path, 'po/'))
+gettext.textdomain('OSDneo2')
+_ = gettext.lgettext
+
+class Settings:
+    """Store user and application settings in one place and make them available.
+    """
+    def __init__(self):
+        """Initialise user settings and application information.
+
+        Keyword arguments:
+        None
+
+        Return value:
+        None
+
+        """
+        # common application copyrights and information (only set here, private)
+        self.__application__ = 'OSD Neo2'
+        self.__cmd_line__ = 'OSDneo2'
+        self.__version__ = '0.12'
+        self.__years__ = '2009'
+        self.__authors__ = 'Martin Zuther'
+        self.__license_short__ = 'GPL version 3 (or later)'
+        self.__license_long__ = """This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program 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
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Thank you for using free software!"""
+        self.__description__ = _('On screen display for learning the keyboard layout Neo2')
+
+        # set INI file path
+        self.__config_file_path__ = os.path.expanduser('~/.OSDneo2')
+
+        # if not found otherwise, INI file can be accessed
+        self.__can_access_config_file__ = True
+
+        # if INI file doesn't exist or cannot be read, ...
+        if not os.access(self.__config_file_path__, os.F_OK | os.R_OK):
+            print _('File "%s" not found.\nUsing default settings') % \
+                self.__config_file_path__
+            # ... try to create it
+            try:
+                configfile = open(self.__config_file_path__, 'w')
+                configfile.close()
+            # failed to create INI file
+            except IOError, e:
+                self.__can_access_config_file__ = False
+                print _('No read access to file "%s".\nChanged settings cannot be stored.') % \
+                    self.__config_file_path__
+
+        # if INI file cannot be accessed, read or written to, ...
+        if self.__can_access_config_file__  and not os.access( \
+                self.__config_file_path__, os.F_OK | os.R_OK | os.W_OK):
+            # ... then notify the user
+            self.__can_access_config_file__ = False
+            print _('No write access to file "%s".\nChanged settings cannot be stored.') % \
+                self.__config_file_path__
+
+        # read application settings from INI file
+        self.__settings__ = ConfigParser.RawConfigParser()
+        self.__settings__.read(self.__config_file_path__)
+
+
+    def __repr__(self):
+        """Return all the contents of the INI file as string.
+
+        Keyword arguments:
+        None
+
+        Return value:
+        Formatted string containing all settings from the INI file
+
+        """
+        output = ''
+        # sort and output sections
+        for section in self.sections():
+            output += '\n[%s]\n' % section
+            # sort and output settings
+            for item in self.items(section):
+                output += '%s: %s\n' % (item[0], item[1])
+        # dump the whole thing
+        return output.lstrip('\n')
+
+
+    def get(self, section, setting, default):
+        """Get an application setting.
+
+        Keyword arguments:
+        section -- string that specifies the section to be queried
+        setting -- string that specifies the setting to be queried
+        value -- string that specifies a default value
+
+        Return value:
+        String containing the specified application setting
+
+        """
+        # return default value if INI file can't be accessed
+        if not self.__can_access_config_file__:
+            return default
+
+        try:
+            value = self.__settings__.get(section, setting)
+        except (ConfigParser.NoOptionError, ConfigParser.NoSectionError):
+            value = default
+            if type(default) != types.NoneType:
+                self.set(section, setting, default)
+        return value
+
+
+    def set(self, section, setting, value):
+        """Set an application setting.
+
+        Keyword arguments:
+        section -- string that specifies the section to be changed
+        setting -- string that specifies the setting to be changed
+        value -- string that specifies the new value
+
+        Return value:
+        None
+
+        """
+        # do nothing if INI file can't be accessed
+        if not self.__can_access_config_file__:
+            return
+
+        assert (type(value) == types.StringType) or \
+            (type(value) == types.UnicodeType)
+
+        if section not in self.sections():
+            self.__settings__.add_section(section)
+
+        old_value = self.get(section, setting, None)
+
+        if value != old_value:
+            self.__settings__.set(section, setting, value)
+
+            configfile = open(self.__config_file_path__, 'w')
+            configfile.write(self.__repr__())
+            configfile.close()
+
+
+    def items(self, section):
+        """Get all application setting names of a section
+
+        Keyword arguments:
+        section -- string that specifies the section to be queried
+
+        Return value:
+        List containing application setting names of the given section
+
+        """
+        items = self.__settings__.items(section)
+        items.sort()
+        return items
+
+
+    def sections(self):
+        """Get all sections.
+
+        Keyword arguments:
+        None
+
+        Return value:
+        List containing all section names
+
+        """
+        sections = self.__settings__.sections()
+        sections.sort()
+        return sections
+
+
+    def get_variable(self, variable):
+        """Return application describing variable as string.
+
+        Keyword arguments:
+        variable -- variable to query
+
+        Return value:
+        Formatted string containing variable's value (or None for
+        invalid queries)
+
+        """
+        # list of variable names that may be queried (as a security measure)
+        valid_variable_names = ('application', 'cmd_line', 'version', \
+                                    'years', 'authors', 'license_short', \
+                                    'license_long', 'description')
+
+        if variable in valid_variable_names:
+            return eval('self.__%s__' % variable)
+        else:
+            return None
+
+
+    def get_description(self, long):
+        """Return application description as string.
+
+        Keyword arguments:
+        long -- Boolean indication whether to output long version of description
+
+        Return value:
+        Formatted string containing application description
+
+        """
+        if long:
+            description = '%(application)s v%(version)s' % \
+                {'application':self.get_variable('application'), \
+                     'version':self.get_variable('version')}
+            description += '\n' + '=' * len(description) + '\n'
+            description += '%(description)s' % \
+                {'description':self.get_variable('description')}
+        else:
+            description = '%(application)s %(version)s' % \
+                {'application':self.get_variable('application'), \
+                     'version':self.get_variable('version')}
+
+        return description
+
+
+    def get_copyrights(self):
+        """Return application copyrights as string.
+
+        Keyword arguments:
+        None
+
+        Return value:
+        Formatted string containing application copyrights
+
+        """
+        return '(c) %(years)s %(authors)s' % \
+            {'years':self.get_variable('years'),\
+                 'authors':self.get_variable('authors')}
+
+
+    def get_license(self, long):
+        """Return application license as string.
+
+        Keyword arguments:
+        long -- Boolean indication whether to output long version of description
+
+        Return value:
+        Formatted string containing application license
+
+        """
+        if long:
+            return self.get_variable('license_long')
+        else:
+            return self.get_variable('license_short')
+
+
+# make everything available ("from Settings import *")
+settings = Settings()
diff --git a/linux/osd/SimpleXkbWrapper.py b/linux/osd/SimpleXkbWrapper.py
new file mode 100755
index 0000000..9ce9572
--- /dev/null
+++ b/linux/osd/SimpleXkbWrapper.py
@@ -0,0 +1,472 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""OSD Neo2
+   ========
+   On screen display for learning the keyboard layout Neo2
+
+   Copyright (c) 2009 Martin Zuther (http://www.mzuther.de/)
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   Thank you for using free software!
+
+"""
+
+# Here follows a plea in German to keep the comments in English so
+# that you may understand them, dear visitor ...
+#
+# Meine Kommentare in den Quellcodes sind absichtlich auf Englisch
+# gehalten, damit Leute, die im Internet nach Lösungen suchen, den
+# Code nachvollziehen können.  Daher bitte ich darum, zusätzliche
+# Kommentare ebenfalls auf Englisch zu schreiben.  Vielen Dank!
+
+import ctypes
+import ctypes.util
+import gettext
+import os
+import types
+
+# initialise localisation settings
+module_path = os.path.dirname(os.path.realpath(__file__))
+gettext.bindtextdomain('OSDneo2', os.path.join(module_path, 'po/'))
+gettext.textdomain('OSDneo2')
+_ = gettext.lgettext
+
+class SimpleXkbWrapper:
+    """
+    Far from complete wrapper for the "X Keyboard Extension" (well, to
+    be honest, it just wraps what I need using Python's "ctypes"
+    library <g>).
+    """
+
+    # set this to true to get lots of debugging information (and
+    # considerably slow things down)
+    DEBUG_XKB = False
+
+    # "C defines" from file /usr/include/X11/extensions/XKB.h (Ubuntu 9.04):
+    # $XFree86: xc/include/extensions/XKB.h,v 1.5tsi Exp $
+    #
+    # XkbUseCoreKbd is used to specify the core keyboard without having to
+    # look up its X input extension identifier.
+
+    XkbUseCoreKbd            = 0x0100
+
+
+
+    # "C defines" from file /usr/include/X11/XKBlib.h (Ubuntu 9.04):
+    # $XFree86: xc/lib/X11/XKBlib.h,v 3.5 2003/04/17 02:06:31 dawes Exp $ #
+    #
+    # XkbOpenDisplay error codes
+
+    XkbOD_Success            = 0
+    XkbOD_BadLibraryVersion  = 1
+    XkbOD_ConnectionRefused  = 2
+    XkbOD_NonXkbServer       = 3
+    XkbOD_BadServerVersion   = 4
+
+
+
+    # "C typedef" from file /usr/include/X11/extensions/XKBstr.h (Ubuntu 9.04):
+    # $Xorg: XKBstr.h,v 1.3 2000/08/18 04:05:45 coskrey Exp $
+    #
+    # Common data structures and access macros
+    #
+    # typedef struct _XkbStateRec {
+    #         unsigned char   group;
+    #         unsigned char   locked_group;
+    #         unsigned short  base_group;
+    #         unsigned short  latched_group;
+    #         unsigned char   mods;
+    #         unsigned char   base_mods;
+    #         unsigned char   latched_mods;
+    #         unsigned char   locked_mods;
+    #         unsigned char   compat_state;
+    #         unsigned char   grab_mods;
+    #         unsigned char   compat_grab_mods;
+    #         unsigned char   lookup_mods;
+    #         unsigned char   compat_lookup_mods;
+    #         unsigned short  ptr_buttons;
+    # } XkbStateRec,*XkbStatePtr;
+
+    class XkbStateRec(ctypes.Structure):
+        _fields_ = [
+                        ('group',              ctypes.c_ubyte), \
+                        ('locked_group',       ctypes.c_ubyte), \
+                        ('base_group',         ctypes.c_ushort), \
+                        ('latched_group',      ctypes.c_ushort), \
+                        ('mods',               ctypes.c_ubyte), \
+                        ('base_mods',          ctypes.c_ubyte), \
+                        ('latched_mods',       ctypes.c_ubyte), \
+                        ('locked_mods',        ctypes.c_ubyte), \
+                        ('compat_state',       ctypes.c_ubyte), \
+                        ('grab_mods',          ctypes.c_ubyte), \
+                        ('compat_grab_mods',   ctypes.c_ubyte), \
+                        ('lookup_mods',        ctypes.c_ubyte), \
+                        ('compat_lookup_mods', ctypes.c_ubyte), \
+                        ('ptr_buttons',        ctypes.c_ushort) \
+                   ]
+
+
+
+    # "C defines" from file /usr/include/X11/X.h (Ubuntu 9.04):
+    # $XFree86: xc/include/X.h,v 1.6 2003/07/09 15:27:28 tsi Exp $
+    #
+    # Key masks. Used as modifiers to GrabButton and GrabKey, results of
+    # QueryPointer, state in various key-, mouse-, and button-related
+    # events.
+
+    ShiftMask                = 1
+    LockMask                 = 2
+    ControlMask              = 4
+    Mod1Mask                 = 8
+    Mod2Mask                 = 16
+    Mod3Mask                 = 32
+    Mod4Mask                 = 64
+    Mod5Mask                 = 128
+
+
+
+    def __init__(self):
+        # dynamically link to "X Keyboard Extension" library
+        library_xf86misc = ctypes.CDLL(ctypes.util.find_library('Xxf86misc'))
+
+        # print debugging information if requested
+        if self.DEBUG_XKB:
+            print
+            print '  %s' % library_xf86misc
+
+
+
+        # define "ctypes" prototype for the function
+        #
+        # Display *XkbOpenDisplay(display_name, event_rtrn, error_rtrn,
+        #                             major_in_out, minor_in_out, reason_rtrn)
+        #
+        #    char * display_name;
+        #    int * event_rtrn;
+        #    int * error_rtrn;
+        #    int * major_in_out;
+        #    int * minor_in_out;
+        #    int * reason_rtrn;
+
+        paramflags_xkbopendisplay = \
+            (1, 'display_name'), \
+            (2, 'event_rtrn'), \
+            (2, 'error_rtrn'), \
+            (3, 'major_in_out'), \
+            (3, 'minor_in_out'), \
+            (2, 'reason_rtrn')
+
+        prototype_xkbopendisplay = ctypes.CFUNCTYPE( \
+            ctypes.c_uint, \
+                ctypes.c_char_p, \
+                ctypes.POINTER(ctypes.c_int), \
+                ctypes.POINTER(ctypes.c_int), \
+                ctypes.POINTER(ctypes.c_int), \
+                ctypes.POINTER(ctypes.c_int), \
+                ctypes.POINTER(ctypes.c_int) \
+                )
+
+        # set-up function (low-level)
+        self.__XkbOpenDisplay__ = prototype_xkbopendisplay( \
+            ('XkbOpenDisplay', library_xf86misc), \
+                paramflags_xkbopendisplay \
+                )
+
+        # define error handler
+        def errcheck_xkbopendisplay(result, func, args):
+            # print debugging information if requested
+            if self.DEBUG_XKB:
+                print
+                print '  [XkbOpenDisplay]'
+                print '  Display:       %#010x' % result
+                print '  display_name:  %s' % args[0].value
+                print '  event_rtrn:    %d' % args[1].value
+                print '  error_rtrn:    %d' % args[2].value
+                print '  major_in_out:  %d' % args[3].value
+                print '  minor_in_out:  %d' % args[4].value
+                print '  reason_rt:     %d' % args[5].value
+
+            # function didn't return display handle, so let's see why
+            # not
+            if result == 0:
+                # values were taken from file /usr/include/X11/XKBlib.h (Ubuntu 9.04):
+                # $XFree86: xc/lib/X11/XKBlib.h,v 3.5 2003/04/17 02:06:31 dawes Exp $ #
+                error_id = args[5].value
+                if error_id == self.XkbOD_Success:
+                    error_name = 'XkbOD_Success'
+                elif error_id == self.XkbOD_BadLibraryVersion:
+                    error_name = 'XkbOD_BadLibraryVersion'
+                elif error_id == self.XkbOD_ConnectionRefused:
+                    error_name = 'XkbOD_ConnectionRefused'
+                elif error_id == self.XkbOD_NonXkbServer:
+                    error_name = 'XkbOD_NonXkbServer'
+                elif error_id == self.XkbOD_BadServerVersion:
+                    error_name = 'XkbOD_BadServerVersion'
+                else:
+                    error_name = _('undefined')
+
+                error_message = \
+                    _('"XkbOpenDisplay" reported an error (%(error_name)s).') % \
+                    {'error_name': error_name}
+                raise OSError(error_message)
+
+            # return display handle and all function arguments
+            return (ctypes.c_uint(result), args)
+
+        # connect error handler to function
+        self.__XkbOpenDisplay__.errcheck = errcheck_xkbopendisplay
+
+
+
+        # define "ctypes" prototype for the function
+        #
+        # Bool XkbGetState(display, device_spec, state_return)
+        #
+        #     Display *             display;
+        #     unsigned int          device_spec;
+        #     XkbStatePtr           state_return;
+
+        paramflags_xkbgetstate = \
+            (1, 'display'), \
+            (1, 'device_spec'), \
+            (3, 'state_return')
+
+        prototype_xkbgetstate = ctypes.CFUNCTYPE( \
+            ctypes.c_int, # Python 2.5 doesn't yet know c_bool \
+                ctypes.c_uint, \
+                ctypes.c_uint, \
+                ctypes.POINTER(self.XkbStateRec) \
+                )
+
+        # set-up function (low-level)
+        self.__XkbGetState__ = prototype_xkbgetstate( \
+            ('XkbGetState', library_xf86misc), \
+                paramflags_xkbgetstate \
+                )
+
+        # define error handler
+        def errcheck_xkbgetstate(result, func, args):
+            # print debugging information if requested
+            if self.DEBUG_XKB:
+                print
+                print '  [XkbGetState]'
+                print '  Status:        %s' % result
+                print '  display:       %#010x' % args[0].value
+                print '  device_spec:   %d\n' % args[1].value
+
+                print '  state_return.group:               %d' % \
+                    args[2].group
+                print '  state_return.locked_group:        %d' % \
+                    args[2].locked_group
+                print '  state_return.base_group:          %d' % \
+                    args[2].base_group
+                print '  state_return.latched_group:       %d' % \
+                    args[2].latched_group
+                print '  state_return.mods:                %d' % \
+                    args[2].mods
+                print '  state_return.base_mods:           %d' % \
+                    args[2].base_mods
+                print '  state_return.latched_mods:        %d' % \
+                    args[2].latched_mods
+                print '  state_return.locked_mods:         %d' % \
+                    args[2].locked_mods
+                print '  state_return.compat_state:        %d' % \
+                    args[2].compat_state
+                print '  state_return.grab_mods:           %d' % \
+                    args[2].grab_mods
+                print '  state_return.compat_grab_mods:    %d' % \
+                    args[2].compat_grab_mods
+                print '  state_return.lookup_mods:         %d' % \
+                    args[2].lookup_mods
+                print '  state_return.compat_lookup_mods:  %d' % \
+                    args[2].compat_lookup_mods
+                print '  state_return.ptr_buttons:         %d\n' % \
+                    args[2].ptr_buttons
+
+                print '  Mask          mods   base_mods   latched_mods   locked_mods   compat_state'
+                print '  --------------------------------------------------------------------------'
+                print '  ShiftMask     %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.ShiftMask) != 0, \
+                     (args[2].base_mods    & self.ShiftMask) != 0, \
+                     (args[2].latched_mods & self.ShiftMask) != 0, \
+                     (args[2].locked_mods  & self.ShiftMask) != 0, \
+                     (args[2].compat_state & self.ShiftMask) != 0)
+
+                print '  LockMask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.LockMask) != 0, \
+                     (args[2].base_mods    & self.LockMask) != 0, \
+                     (args[2].latched_mods & self.LockMask) != 0, \
+                     (args[2].locked_mods  & self.LockMask) != 0, \
+                     (args[2].compat_state & self.LockMask) != 0)
+
+                print '  ControlMask   %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.ControlMask) != 0, \
+                     (args[2].base_mods    & self.ControlMask) != 0, \
+                     (args[2].latched_mods & self.ControlMask) != 0, \
+                     (args[2].locked_mods  & self.ControlMask) != 0, \
+                     (args[2].compat_state & self.ControlMask) != 0)
+
+                print '  Mod1Mask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.Mod1Mask) != 0, \
+                     (args[2].base_mods    & self.Mod1Mask) != 0, \
+                     (args[2].latched_mods & self.Mod1Mask) != 0, \
+                     (args[2].locked_mods  & self.Mod1Mask) != 0, \
+                     (args[2].compat_state & self.Mod1Mask) != 0)
+
+                print '  Mod2Mask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.Mod2Mask) != 0, \
+                     (args[2].base_mods    & self.Mod2Mask) != 0, \
+                     (args[2].latched_mods & self.Mod2Mask) != 0, \
+                     (args[2].locked_mods  & self.Mod2Mask) != 0, \
+                     (args[2].compat_state & self.Mod2Mask) != 0)
+
+                print '  Mod3Mask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.Mod3Mask) != 0, \
+                     (args[2].base_mods    & self.Mod3Mask) != 0, \
+                     (args[2].latched_mods & self.Mod3Mask) != 0, \
+                     (args[2].locked_mods  & self.Mod3Mask) != 0, \
+                     (args[2].compat_state & self.Mod3Mask) != 0)
+
+                print '  Mod4Mask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.Mod4Mask) != 0, \
+                     (args[2].base_mods    & self.Mod4Mask) != 0, \
+                     (args[2].latched_mods & self.Mod4Mask) != 0, \
+                     (args[2].locked_mods  & self.Mod4Mask) != 0, \
+                     (args[2].compat_state & self.Mod4Mask) != 0)
+
+                print '  Mod5Mask      %-5s  %-5s       %-5s          %-5s         %-5s' % \
+                    ((args[2].mods         & self.Mod5Mask) != 0, \
+                     (args[2].base_mods    & self.Mod5Mask) != 0, \
+                     (args[2].latched_mods & self.Mod5Mask) != 0, \
+                     (args[2].locked_mods  & self.Mod5Mask) != 0, \
+                     (args[2].compat_state & self.Mod5Mask) != 0)
+
+            # return function return value and all function arguments
+            return (result, args)
+
+        # connect error handler to function
+        self.__XkbGetState__.errcheck = errcheck_xkbgetstate
+
+
+    # define high-level version of "XkbOpenDisplay"
+    def XkbOpenDisplay(self, display_name, major_in_out, minor_in_out):
+        # if we don't do type checking, nobody ever will
+        assert (type(display_name) == types.NoneType) or \
+            (type(display_name) == types.StringType)
+        assert type(major_in_out) == types.IntType
+        assert type(minor_in_out) == types.IntType
+
+        # convert function arguments to "ctypes", ...
+        __display_name__ = ctypes.c_char_p(display_name)
+        __major_in_out__ = ctypes.c_int(major_in_out)
+        __minor_in_out__ = ctypes.c_int(minor_in_out)
+
+        # ... call low-level function ...
+        ret = self.__XkbOpenDisplay__(__display_name__, __major_in_out__, \
+                                         __minor_in_out__)
+
+        # ... and return converted return value and function arguments
+        return {'display_handle': ret[0].value, \
+                    'server_major_version': ret[1][3].value, \
+                    'server_minor_version': ret[1][4].value}
+
+
+    # define high-level version of "XkbGetState"
+    def XkbGetState(self, display_handle, device_spec):
+        # if we don't do type checking, nobody ever will
+        assert type(display_handle) == types.LongType
+        assert type(device_spec) == types.IntType
+
+        # convert function arguments to "ctypes", ...
+        __display_handle__ = ctypes.c_uint(display_handle)
+        __device_spec__ = ctypes.c_uint(device_spec)
+        __xkbstaterec__ = self.XkbStateRec()
+
+        # ... call low-level function ...
+        ret = self.__XkbGetState__(__display_handle__, __device_spec__, \
+                                  __xkbstaterec__)
+
+        # ... and return converted function argument
+        xkbstaterec = ret[1][2]
+        return xkbstaterec
+
+
+    # extract modifier status using bitmasks
+    def ExtractLocks(self, xkbstaterec):
+        return {'group': xkbstaterec.group, \
+                'shift': \
+                    (xkbstaterec.base_mods & self.ShiftMask) != 0, \
+                'shift_lock': \
+                    (xkbstaterec.locked_mods & self.ShiftMask) != 0, \
+                'lock': \
+                    (xkbstaterec.base_mods & self.LockMask) != 0, \
+                'lock_lock': \
+                    (xkbstaterec.locked_mods & self.LockMask) != 0, \
+                'control': \
+                    (xkbstaterec.base_mods & self.ControlMask) != 0, \
+                'control_lock': \
+                    (xkbstaterec.locked_mods & self.ControlMask) != 0, \
+                'mod1': \
+                    (xkbstaterec.base_mods & self.Mod1Mask) != 0, \
+                'mod1_lock': \
+                    (xkbstaterec.locked_mods & self.Mod1Mask) != 0, \
+                'mod2': \
+                    (xkbstaterec.base_mods & self.Mod2Mask) != 0, \
+                'mod2_lock': \
+                    (xkbstaterec.locked_mods & self.Mod2Mask) != 0, \
+                'mod3': \
+                    (xkbstaterec.base_mods & self.Mod3Mask) != 0, \
+                'mod3_lock': \
+                    (xkbstaterec.locked_mods & self.Mod3Mask) != 0, \
+                'mod4': \
+                    (xkbstaterec.base_mods & self.Mod4Mask) != 0, \
+                'mod4_lock': \
+                    (xkbstaterec.locked_mods & self.Mod4Mask) != 0, \
+                'mod5': \
+                    (xkbstaterec.base_mods & self.Mod5Mask) != 0, \
+                'mod5_lock': \
+                    (xkbstaterec.locked_mods & self.Mod5Mask) != 0}
+
+
+if __name__ == '__main__':
+    # simple demonstration of this wrapper
+    xkb = SimpleXkbWrapper()
+
+    # initialise wrapper for the X Keyboard Extension (v1.0) and
+    # open connection to default X display
+    display_name = None
+    major_in_out = 1
+    minor_in_out = 0
+
+    try:
+        ret = xkb.XkbOpenDisplay(display_name, major_in_out, minor_in_out)
+    except OSError, error:
+        print
+        print '  Error: %s' % error
+        print
+        exit(1)
+
+    # ... get modifier state of core keyboard ...
+    display_handle = ret['display_handle']
+    device_spec = xkb.XkbUseCoreKbd
+    xkbstaterec = xkb.XkbGetState(display_handle, device_spec)
+
+    # ... and extract and the information we need
+    mod_states = xkb.ExtractLocks(xkbstaterec)
+    print
+    for mod in mod_states:
+        print '  %-13s  %s' % (mod + ':', mod_states[mod])
+    print
diff --git a/linux/osd/develop/Layers.org b/linux/osd/develop/Layers.org
new file mode 100644
index 0000000..50361a1
--- /dev/null
+++ b/linux/osd/develop/Layers.org
@@ -0,0 +1,178 @@
+* "xkbmap": setxkbmap de neo -option
+* "xmodmap": setxkbmap lv && xmodmap neo_de.xmodmap
+
+* special layer numbers:
+** 0 --> undefined
+** 7 --> layer 1 with Caps Lock
+** 8 --> layer 2 with Caps Lock
+
+* find current layer
+
+|-----+-----+-------|
+| '1' | 'q' | Layer |
+|-----+-----+-------|
+| 1   | x   |     1 |
+| °   | X   |     2 |
+| ¹   | …   |     3 |
+| ª   | ⋮   |     4 |
+| ₁   | ξ   |     5 |
+| ¬   | Ξ   |     6 |
+| 1   | X   |     7 |
+| °   | x   |     8 |
+|-----+-----+-------|
+
+* layers in "xkbmap"
+
+|------------------+------+------+------+-----------|
+| Modifier / Locks | none | Caps | Mod4 | Caps+Mod4 |
+|------------------+------+------+------+-----------|
+| none             |    1 |    7 |    4 |         4 |
+| Mod3             |    3 |    3 |    6 |         6 |
+| Mod4             |    4 |    4 |    1 |         7 |
+| Mod3+Mod4        |    6 |    6 |    3 |         3 |
+|------------------+------+------+------+-----------|
+| Shift            |    2 |    8 |    0 |         0 |
+| Shift+Mod3       |    5 |    5 |    0 |         0 |
+| Shift+Mod4       |    0 |    0 |    2 |         8 |
+| all              |    0 |    0 |    0 |         0 |
+|------------------+------+------+------+-----------|
+
+
+* plain (xkbmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        1 |       4 |
+| Mod3 on   |        3 |       6 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        2 |       0 |
+| Mod3 on   |        5 |       0 |
+|-----------+----------+---------|
+
+
+* Caps Lock (xkbmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        7 |       4 |
+| Mod3 on   |        3 |       6 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        8 |       0 |
+| Mod3 on   |        5 |       0 |
+|-----------+----------+---------|
+
+
+* Mod4 Lock (xkbmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        4 |       1 |
+| Mod3 on   |        6 |       3 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        0 |       2 |
+| Mod3 on   |        0 |       5 |
+|-----------+----------+---------|
+
+
+* Caps+Mod4 Lock (xkbmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        4 |       7 |
+| Mod3 on   |        6 |       3 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        0 |       8 |
+| Mod3 on   |        0 |       5 |
+|-----------+----------+---------|
+
+
+* layers in "xmodmap"
+
+|------------------+------+------+------+-----------|
+| Modifier / Locks | none | Caps | Mod4 | Caps+Mod4 |
+|------------------+------+------+------+-----------|
+| none             |    1 |    2 |    4 |         0 |
+| Mod3             |    3 |    5 |    3 |         5 |
+| Mod4             |    4 |    0 |    4 |         0 |
+| Mod3+Mod4        |    6 |    6 |    6 |         5 |
+|------------------+------+------+------+-----------|
+| Shift            |    2 |    8 |    0 |         0 |
+| Shift+Mod3       |    5 |    5 |    5 |         5 |
+| Shift+Mod4       |    0 |    0 |    0 |         0 |
+| all              |    6 |    6 |    6 |         5 |
+|------------------+------+------+------+-----------|
+
+
+* plain (xmodmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        1 |       4 |
+| Mod3 on   |        3 |       6 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        2 |       0 |
+| Mod3 on   |        5 |       6 |
+|-----------+----------+---------|
+
+
+* Caps Lock (xmodmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        2 |       0 |
+| Mod3 on   |        5 |       6 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        2 |       0 |
+| Mod3 on   |        5 |       6 |
+|-----------+----------+---------|
+
+
+* Mod4 Lock (xmodmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        4 |       4 |
+| Mod3 on   |        3 |       6 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        0 |       0 |
+| Mod3 on   |        5 |       6 |
+|-----------+----------+---------|
+
+
+* Caps+Mod4 Lock (xmodmap):
+
+|-----------+----------+---------|
+| Shift off | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        0 |       0 |
+| Mod3 on   |        5 |       5 |
+|-----------+----------+---------|
+| Shift on  | Mod4 off | Mod4 on |
+|-----------+----------+---------|
+| Mod3 off  |        0 |       0 |
+| Mod3 on   |        5 |       5 |
+|-----------+----------+---------|
+
+
+#+STARTUP: showall
diff --git a/linux/osd/develop/docs/XKBlib.pdf b/linux/osd/develop/docs/XKBlib.pdf
new file mode 100644
index 0000000..f97397f
--- /dev/null
+++ b/linux/osd/develop/docs/XKBlib.pdf
diff --git a/linux/osd/develop/docs/XKBproto.pdf b/linux/osd/develop/docs/XKBproto.pdf
new file mode 100644
index 0000000..b9735de
--- /dev/null
+++ b/linux/osd/develop/docs/XKBproto.pdf
diff --git a/linux/osd/develop/xkbtest/Makefile b/linux/osd/develop/xkbtest/Makefile
new file mode 100644
index 0000000..710c1cd
--- /dev/null
+++ b/linux/osd/develop/xkbtest/Makefile
@@ -0,0 +1,34 @@
+# Makefile
+
+# The compiler to be used
+CC = gcc
+
+# Arguments passed to the compiler: -g causes the compiler to insert
+# debugging info into the executable and -Wall turns on all warnings
+CFLAGS = -g -O2
+
+# The dynamic libraries that the executable needs to be linked to
+LDFLAGS = -lxkbfile
+
+# The Dependency Rules
+# They take the form
+# target : dependency1 dependency2...
+#        Command(s) to generate target from dependencies
+
+# Dummy target that is processed by default. It specifies al list of
+# other targets that are processed if make is invoked with no arguments
+# However if you invoke make as "make output-data", it will only try to 
+# generate the file output-data and its dependencies, not plot.png 
+all : xkbtest
+
+xkbtest : xkbtest.c
+	$(CC) $(CFLAGS) $(LDFLAGS) xkbtest.c -o xkbtest
+
+# The clean target is used to remove all machine generated files 
+# and start over from a clean slate. This will prove extremely
+# useful. It is an example of a dummy target, as there will never be a
+# file named clean. Thus "make clean" will always cause the following
+# command to be executed.
+
+clean :
+	rm -f xkbtest
diff --git a/linux/osd/develop/xkbtest/xkbtest.c b/linux/osd/develop/xkbtest/xkbtest.c
new file mode 100644
index 0000000..a5c1412
--- /dev/null
+++ b/linux/osd/develop/xkbtest/xkbtest.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <X11/XKBlib.h>
+
+int main(int argc, char *argv[])
+{
+  int event_rtrn = 0;
+  int error_rtrn = 0;
+  int major_in_out = 1;
+  int minor_in_out = 0;
+  int reason_rtrn = 0;
+
+  Display * display = NULL;
+  display = XkbOpenDisplay(NULL, &event_rtrn, &error_rtrn, &major_in_out,
+					  &minor_in_out, &reason_rtrn);
+
+  printf("\n  Display handle:  %#010x\n", (unsigned int) display);
+
+  XkbStateRec state;
+  XkbGetState(display, XkbUseCoreKbd, &state);
+
+  printf("\n  mods:          %x", state.mods);
+  printf("\n  base_mods:     %x", state.base_mods);
+  printf("\n  latched_mods:  %x", state.latched_mods);
+  printf("\n  locked_mods:   %x", state.locked_mods);
+  printf("\n  compat_state:  %x", state.compat_state);
+
+  printf("\n\n");
+  return 0;
+}
diff --git a/linux/osd/images/neo2-hauptfeld_ebene1-caps.png b/linux/osd/images/neo2-hauptfeld_ebene1-caps.png
new file mode 100644
index 0000000..e125ba3
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene1-caps.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene1.png b/linux/osd/images/neo2-hauptfeld_ebene1.png
new file mode 100644
index 0000000..0beab8e
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene1.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene2-caps.png b/linux/osd/images/neo2-hauptfeld_ebene2-caps.png
new file mode 100644
index 0000000..9d5cf8e
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene2-caps.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene2.png b/linux/osd/images/neo2-hauptfeld_ebene2.png
new file mode 100644
index 0000000..f95b7f1
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene2.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene3.png b/linux/osd/images/neo2-hauptfeld_ebene3.png
new file mode 100644
index 0000000..e7ffaa2
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene3.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene4.png b/linux/osd/images/neo2-hauptfeld_ebene4.png
new file mode 100644
index 0000000..af8fb40
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene4.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene5.png b/linux/osd/images/neo2-hauptfeld_ebene5.png
new file mode 100644
index 0000000..32e6f3b
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene5.png
diff --git a/linux/osd/images/neo2-hauptfeld_ebene6.png b/linux/osd/images/neo2-hauptfeld_ebene6.png
new file mode 100644
index 0000000..73d915e
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_ebene6.png
diff --git a/linux/osd/images/neo2-hauptfeld_leer.png b/linux/osd/images/neo2-hauptfeld_leer.png
new file mode 100644
index 0000000..e56479c
--- /dev/null
+++ b/linux/osd/images/neo2-hauptfeld_leer.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene1-caps.png b/linux/osd/images/neo2-ziffernfeld_ebene1-caps.png
new file mode 100644
index 0000000..803ec6d
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene1-caps.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene1.png b/linux/osd/images/neo2-ziffernfeld_ebene1.png
new file mode 100644
index 0000000..71dadb6
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene1.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene2-caps.png b/linux/osd/images/neo2-ziffernfeld_ebene2-caps.png
new file mode 100644
index 0000000..cd858c3
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene2-caps.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene2.png b/linux/osd/images/neo2-ziffernfeld_ebene2.png
new file mode 100644
index 0000000..212d869
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene2.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene3.png b/linux/osd/images/neo2-ziffernfeld_ebene3.png
new file mode 100644
index 0000000..a859b40
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene3.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene4.png b/linux/osd/images/neo2-ziffernfeld_ebene4.png
new file mode 100644
index 0000000..f6a48e7
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene4.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene5.png b/linux/osd/images/neo2-ziffernfeld_ebene5.png
new file mode 100644
index 0000000..4fe7267
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene5.png
diff --git a/linux/osd/images/neo2-ziffernfeld_ebene6.png b/linux/osd/images/neo2-ziffernfeld_ebene6.png
new file mode 100644
index 0000000..62a8aa5
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_ebene6.png
diff --git a/linux/osd/images/neo2-ziffernfeld_leer.png b/linux/osd/images/neo2-ziffernfeld_leer.png
new file mode 100644
index 0000000..c22d0fc
--- /dev/null
+++ b/linux/osd/images/neo2-ziffernfeld_leer.png
diff --git a/linux/osd/po/de/LC_MESSAGES/OSDneo2.mo b/linux/osd/po/de/LC_MESSAGES/OSDneo2.mo
new file mode 100644
index 0000000..765f367
--- /dev/null
+++ b/linux/osd/po/de/LC_MESSAGES/OSDneo2.mo
diff --git a/linux/osd/po/de/LC_MESSAGES/OSDneo2.po b/linux/osd/po/de/LC_MESSAGES/OSDneo2.po
new file mode 100644
index 0000000..9a5e2cb
--- /dev/null
+++ b/linux/osd/po/de/LC_MESSAGES/OSDneo2.po
@@ -0,0 +1,202 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: OSD Neo2 0.12\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2009-09-08 09:50+0100\n"
+"PO-Revision-Date: \n"
+"Last-Translator: Martin Zuther <http://www.mzuther.de>\n"
+"Language-Team: Martin Zuther <http://www.mzuther.de/>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Poedit-Language: German\n"
+"X-Poedit-Country: GERMANY\n"
+"X-Poedit-SourceCharset: utf-8\n"
+"X-Poedit-KeywordsList: lngettext:1,2\n"
+"X-Poedit-Basepath: ../../../\n"
+"X-Poedit-SearchPath-0: .\n"
+
+#: OSDneo2.py:241
+#, python-format
+msgid ""
+"%(description)s\n"
+"%(copyrights)s\n"
+"\n"
+"%(license)s"
+msgstr ""
+"%(description)s\n"
+"%(copyrights)s\n"
+"\n"
+"%(license)s"
+
+#: OSDneo2.py:363
+#: OSDneo2.py:453
+#: OSDneo2.py:492
+#: OSDneo2.py:521
+#: OSDneo2.py:545
+msgid "Error"
+msgstr "Fehler"
+
+#: OSDneo2.py:451
+#: OSDneo2.py:490
+#, python-format
+msgid "Invalid keyboard driver \"%s\" selected."
+msgstr "Ungültiger Tastaturtreiber \"%s\" ausgewählt."
+
+#: OSDneo2.py:519
+#: OSDneo2.py:543
+#, python-format
+msgid ""
+"The following image file was not found:\n"
+"\"%s\""
+msgstr ""
+"Die folgende Bilddatei wurde nicht gefunden:\n"
+"\"%s\""
+
+#: OSDneo2.py:600
+msgid "For security reasons you may not run this application with superuser rights."
+msgstr ""
+"Aus Sicherheitsgründen kann dieses Programm nicht mit superuser-Rechten\n"
+"ausgeführt werden."
+
+#: Settings.py:80
+msgid "On screen display for learning the keyboard layout Neo2"
+msgstr "On-Screen Display als Lernhilfe für das Tastaturlayout Neo2"
+
+#: Settings.py:90
+#, python-format
+msgid ""
+"File \"%s\" not found.\n"
+"Using default settings"
+msgstr ""
+"Datei \"%s\" wurde nicht gefunden.\n"
+"Verwende Standardeinstellungen."
+
+#: Settings.py:99
+#, python-format
+msgid ""
+"No read access to file \"%s\".\n"
+"Changed settings cannot be stored."
+msgstr ""
+"Kein Lesezugriff auf Datei \"%s\".\n"
+"Geänderte Einstellungen können nicht gespeichert werden."
+
+#: Settings.py:107
+#, python-format
+msgid ""
+"No write access to file \"%s\".\n"
+"Changed settings cannot be stored."
+msgstr ""
+"Kein Schreibzugriff auf Datei \"%s\".\n"
+"Geänderte Einstellungen können nicht gespeichert werden."
+
+#: SimpleXkbWrapper.py:219
+msgid "undefined"
+msgstr "undefiniert"
+
+#: SimpleXkbWrapper.py:222
+#, python-format
+msgid "\"XkbOpenDisplay\" reported an error (%(error_name)s)."
+msgstr "\"XkbOpenDisplay\" hat einen Fehler gemeldet (%(error_name)s)."
+
+#~ msgid ""
+#~ "No access to file \"%s\".\n"
+#~ "Changed settings cannot be stored."
+#~ msgstr ""
+#~ "Kein Zugriff auf Datei \"%s\".\n"
+#~ "Geänderte Einstellungen können nicht gespeichert werden."
+#~ msgid "No write access to file \"%s\"."
+#~ msgstr "Kein Schreibzugriff auf Datei \"%s\"."
+#~ msgid "Changed settings cannot be stored."
+#~ msgstr "Geänderte Einstellungen können nicht gespeichert werden."
+#~ msgid "No access to file \"%s\"."
+#~ msgstr "Kein Zugriff auf Datei \"%s\"."
+#~ msgid "Changed settings will not be stored."
+#~ msgstr "Geänderte Einstellungen können nicht gespeichert werden."
+#~ msgid "File \"%s\" not found."
+#~ msgstr "Datei \"%s\" wurde nicht gefunden."
+#~ msgid "FILE location of the used keyboard device"
+#~ msgstr "DATEI-Ort der verwendeten Tastatur"
+#~ msgid "No keyboard found."
+#~ msgstr "Keine Tastatur gefunden."
+#~ msgid "More than one keyboard found, using the last one."
+#~ msgstr "Mehr als eine Tastatur gefunden, die letzte wird verwendet."
+#~ msgid "  Running on Linux. Good choice ... ;)\n"
+#~ msgstr "  Läuft unter Linux. Eine gute Wahl... ;)\n"
+#~ msgid "  Running on Windows.\n"
+#~ msgstr "  Läuft unter Windows.\n"
+#~ msgid "  This operating system is not yet supported.\n"
+#~ msgstr "  Dieses Betriebssystem wird noch nicht unterstützt.\n"
+#~ msgid ""
+#~ "This message should never appear. If it does, however,\n"
+#~ "please try to reproduce it and report a bug. Thanks!"
+#~ msgstr ""
+#~ "Diese Nachricht sollte niemals auftauchen. Falls sie es doch tut,\n"
+#~ "bitte versuchen, den Fehler zu reproduzieren, und das Problem\n"
+#~ "melden. Danke!"
+#~ msgid "English"
+#~ msgstr "Deutsch"
+#~ msgid "'%(account_type)s' is not a valid account type"
+#~ msgstr "'%(account_type)s' ist kein gültiger Konto-Typ"
+#~ msgid "Checking account '%(account)s'..."
+#~ msgstr "Rufe Konto '%(account)s' ab..."
+#~ msgid "Account '%(account)s': %(error)s"
+#~ msgstr "Konto '%(account)s': %(error)s"
+#~ msgid "Processing messages..."
+#~ msgstr "Bearbeite Nachrichten..."
+#~ msgid "This message could not be decoded to Unicode."
+#~ msgstr "Diese Nachricht konnte nicht in Unicode umgewandelt werden."
+#~ msgid "[image]"
+#~ msgstr "[Bild]"
+#~ msgid "\\g<2> [link: \\g<1>]"
+#~ msgstr "\\g<2> [Link: \\g<1>]"
+#~ msgid "(Empty message)"
+#~ msgstr "(Leere Nachricht)"
+#~ msgid "(No subject)"
+#~ msgstr "(Kein Betreff)"
+#~ msgid "PyGtk %(version)d.%(subversion)d is required for this application."
+#~ msgstr "Für dieses Programm wird PyGtk %(version)d.%(subversion)d benötigt."
+#~ msgid "Status"
+#~ msgstr "Status"
+#~ msgid "Sender"
+#~ msgstr "Absender"
+#~ msgid "Recipients"
+#~ msgstr "Empfänger"
+#~ msgid "Subject"
+#~ msgstr "Betreff"
+#~ msgid "Date"
+#~ msgstr "Datum"
+#~ msgid "Attachment"
+#~ msgstr "Anhang"
+#~ msgid "Account"
+#~ msgstr "Konto"
+#~ msgid "_Show headers"
+#~ msgstr "_Kopfzeilen anzeigen"
+#~ msgid "_File"
+#~ msgstr "_Datei"
+#~ msgid "_Quit"
+#~ msgstr "_Beenden"
+#~ msgid "_Messages"
+#~ msgstr "_Nachrichten"
+#~ msgid "_Check"
+#~ msgstr "_Abrufen"
+#~ msgid "_Process"
+#~ msgstr "_Verarbeiten"
+#~ msgid "Idle."
+#~ msgstr "Bereit."
+#~ msgid "Mail last checked %(minutes)d minute ago."
+#~ msgid_plural "Mail last checked %(minutes)d minutes ago."
+#~ msgstr[0] "Nachrichten zuletzt vor %(minutes)d Minute abgerufen."
+#~ msgstr[1] "Nachrichten zuletzt vor %(minutes)d Minuten abgerufen."
+#~ msgid "yes"
+#~ msgstr "ja"
+#~ msgid "no"
+#~ msgstr "nein"
+#~ msgid "Connection timed out"
+#~ msgstr "Verbindung unterbrochen"
+#~ msgid "IMAP4 server error"
+#~ msgstr "IMAP4-Serverfehler"
+#~ msgid "Email checker to get rid of SPAM quickly"
+#~ msgstr "Programm zum schnellen Abrufen von Emails und Bereinigen von SPAM"
+