Added screenkey as an alternative to key-mon, etc

screenkey/.gitignore

+.bzr/

screenkey/LICENSE

+Copyright (c) 2010 Pablo Seminario <pabluk@gmail.com>
+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/>.
+

screenkey/MANIFEST.in

+include screenkey README LICENSE
+recursive-include data *

screenkey/README

+Screenkey v0.2
+http://launchpad.net/screenkey
+
+About
+=====
+Screencast your keys.
+A screencast tool to display your keys inspired by Screenflick
+and initially based on the key-mon project code.
+
+Usage
+=====
+Download the latest version from https://launchpad.net/screenkey/+download
+and you need install python-xlib.
+
+To run without installing (change x.x by current version number)
+
+  tar xvfz screenkey-x.x.tar.gz
+  cd screenkey-x.x/
+  sudo ./screenkey
+
+To install
+
+  tar xvfz screenkey-x.x.tar.gz
+  cd screenkey-x.x/
+  sudo ./setup.py install
+
+Or you can use dpkg (Debian and Ubuntu)
+
+  sudo dpkg -i screenkey_x.x-y_all.deb
+
+
+Author
+======
+Pablo Seminario <pabluk@gmail.com>
+
+Thanks to
+=========
+Jacob Gardner
+farrer
+Ivan Makfinsky
+Muneeb Shaikh
+
+License
+=======
+Copyright (c) 2010 Pablo Seminario <pabluk@gmail.com>
+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/>.
+
+

screenkey/Screenkey/__init__.py

+
+APP_NAME = "Screenkey"
+APP_DESC = _("Screencast your keys")
+APP_URL = 'http://launchpad.net/screenkey'
+VERSION = '0.2'
+AUTHOR = 'Pablo Seminario'
+

screenkey/Screenkey/listenkbd.py

+# Copyright (c) 2010 Pablo Seminario <pabluk@gmail.com>
+# 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/>.
+
+import threading
+import time
+import sys
+import subprocess
+import modmap
+import gtk
+
+from Xlib import X, XK, display
+from Xlib.ext import record
+from Xlib.protocol import rq
+
+MODE_RAW = 0
+MODE_NORMAL = 1
+
+REPLACE_KEYS = {
+    'XK_Escape':_('Esc '),
+    'XK_Tab':u'\u21B9 ',
+    'XK_Return':u'\u23CE ',
+    'XK_Space':u' ',
+    'XK_Caps_Lock':_('Caps '),
+    'XK_F1':u'F1 ',
+    'XK_F2':u'F2 ',
+    'XK_F3':u'F3 ',
+    'XK_F4':u'F4 ',
+    'XK_F5':u'F5 ',
+    'XK_F6':u'F6 ',
+    'XK_F7':u'F7 ',
+    'XK_F8':u'F8 ',
+    'XK_F9':u'F9 ',
+    'XK_F10':u'F10 ',
+    'XK_F11':u'F11 ',
+    'XK_F12':u'F12 ',
+    'XK_Home':_('Home '),
+    'XK_Up':u'\u2191',
+    'XK_Page_Up':_('PgUp '),
+    'XK_Left':u'\u2190',
+    'XK_Right':u'\u2192',
+    'XK_End':_('End '),
+    'XK_Down':u'\u2193',
+    'XK_Next':_('PgDn '),
+    'XK_Insert':_('Ins '),
+    'XK_Delete':_('Del '),
+    'XK_KP_Home':u'(7)',
+    'XK_KP_Up':u'(8)',
+    'XK_KP_Prior':u'(9)',
+    'XK_KP_Left':u'(4)',
+    'XK_KP_Right':u'(6)',
+    'XK_KP_End':u'(1)',
+    'XK_KP_Down':u'(2)',
+    'XK_KP_Page_Down':u'(3)',
+    'XK_KP_Begin':u'(5)',
+    'XK_KP_Insert':u'(0)',
+    'XK_KP_Delete':u'(.)',
+    'XK_KP_Add':u'(+)',
+    'XK_KP_Subtract':u'(-)',
+    'XK_KP_Multiply':u'(*)',
+    'XK_KP_Divide':u'(/)',
+    'XK_Num_Lock':u'NumLock ',
+    'XK_KP_Enter':u'\u23CE ',
+}
+
+class ListenKbd(threading.Thread):
+
+    def __init__(self, label, logger, mode):
+        threading.Thread.__init__(self)
+        self.mode = mode
+        self.logger = logger
+        self.label = label
+        self.text = ""
+        self.command = None
+        self.shift = None
+        self.cmd_keys = {
+            'shift': False,
+            'ctrl': False,
+            'alt': False,
+            'capslock': False,
+            'meta': False,
+            'super':False
+            }
+
+        self.logger.debug("Thread created")
+        self.keymap = modmap.get_keymap_table()
+        self.modifiers = modmap.get_modifier_map()
+
+        self.local_dpy = display.Display()
+        self.record_dpy = display.Display()
+
+        if not self.record_dpy.has_extension("RECORD"):
+            self.logger.error("RECORD extension not found.")
+            print "RECORD extension not found"
+            sys.exit(1)
+
+        self.ctx = self.record_dpy.record_create_context(
+                0,
+                [record.AllClients],
+                [{
+                        'core_requests': (0, 0),
+                        'core_replies': (0, 0),
+                        'ext_requests': (0, 0, 0, 0),
+                        'ext_replies': (0, 0, 0, 0),
+                        'delivered_events': (0, 0),
+                        'device_events': (X.KeyPress, X.KeyRelease),
+                        'errors': (0, 0),
+                        'client_started': False,
+                        'client_died': False,
+                }])
+
+    def run(self):
+        self.logger.debug("Thread started.")
+        self.record_dpy.record_enable_context(self.ctx, self.key_press)
+
+    def lookup_keysym(self, keysym):
+        for name in dir(XK):
+            if name[:3] == "XK_" and getattr(XK, name) == keysym:
+                return name[3:]
+        return ""
+
+    def replace_key(self, key, keysym):
+        for name in dir(XK):
+            if name[:3] == "XK_" and getattr(XK, name) == keysym:
+                if name in REPLACE_KEYS:
+                    return REPLACE_KEYS[name]
+
+    def update_text(self, string=None):
+        gtk.gdk.threads_enter()
+        if not string is None:
+            self.text = "%s%s" % (self.label.get_text(), string)
+            self.label.set_text(self.text)
+        else:
+            self.label.set_text("")
+        gtk.gdk.threads_leave()
+        self.label.emit("text-changed")
+
+    def key_press(self, reply):
+
+        # FIXME:
+        # This is not the most efficient way to detect the
+        # use of sudo/gksudo but it works.
+        sudo_is_running = subprocess.call(['ps', '-C', 'sudo'],
+                    stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+        if not sudo_is_running:
+            return
+
+        if reply.category != record.FromServer:
+            return
+        if reply.client_swapped:
+            self.logger.warning(
+                "* received swapped protocol data, cowardly ignored"
+            )
+            return
+        if not len(reply.data) or ord(reply.data[0]) < 2:
+            # not an event
+            return
+        data = reply.data
+        key = None
+        while len(data):
+            event, data = rq.EventField(None).parse_binary_value(data,
+                                    self.record_dpy.display, None, None)
+            if event.type in [X.KeyPress, X.KeyRelease]:
+                if self.mode == MODE_NORMAL:
+                    key = self.key_normal_mode(event)
+                if self.mode == MODE_RAW:
+                    key = self.key_raw_mode(event)
+                if not key:
+                    return
+        self.update_text(key)
+
+    def key_normal_mode(self, event):
+        key = ''
+        mod = ''
+        keysym = self.local_dpy.keycode_to_keysym(event.detail, 0)
+
+        if event.detail in self.keymap:
+            key_normal, key_shift, key_dead, key_deadshift = \
+                                            self.keymap[event.detail]
+            self.logger.debug("Key %s(keycode) %s. Symbols %s" %
+                (event.detail,
+                 event.type == X.KeyPress and "pressed" or "released",
+                 self.keymap[event.detail])
+                )
+        else:
+            self.logger.debug('No mapping for scan_code %d' % event.detail)
+            return
+
+
+        # Alt key
+        if event.detail in self.modifiers['mod1']:
+            if event.type == X.KeyPress:
+                self.cmd_keys['alt'] = True
+            else:
+                self.cmd_keys['alt'] = False
+            return
+        # Meta key
+        # Fixme: it must use self.modifiers['mod5']
+        #        but doesn't work
+        if event.detail == 108:
+            if event.type == X.KeyPress:
+                self.cmd_keys['meta'] = True
+            else:
+                self.cmd_keys['meta'] = False
+            return
+        # Super key
+        if event.detail in self.modifiers['mod4']:
+            if event.type == X.KeyPress:
+                self.cmd_keys['super'] = True
+            else:
+                self.cmd_keys['super'] = False
+            return
+        # Ctrl keys
+        elif event.detail in self.modifiers['control']:
+            if event.type == X.KeyPress:
+                self.cmd_keys['ctrl'] = True
+            else:
+                self.cmd_keys['ctrl'] = False
+            return
+        # Shift keys
+        elif event.detail in self.modifiers['shift']:
+            if event.type == X.KeyPress:
+                self.cmd_keys['shift'] = True
+            else:
+                self.cmd_keys['shift'] = False
+            return
+        # Capslock key
+        elif event.detail in self.modifiers['lock']:
+            if event.type == X.KeyPress:
+                if self.cmd_keys['capslock']:
+                    self.cmd_keys['capslock'] = False
+                else:
+                    self.cmd_keys['capslock'] = True
+            return
+        # Backspace key
+        elif event.detail == 22 and event.type == X.KeyPress:
+            gtk.gdk.threads_enter()
+            if len(self.label.get_text()) > 0:
+                self.label.set_text(
+                    unicode(self.label.get_text(), 'utf-8')[:-1]
+                )
+                key = ""
+                gtk.gdk.threads_leave()
+            else:
+                gtk.gdk.threads_leave()
+                return
+        else:
+            if event.type == X.KeyPress:
+                key = key_normal
+                if self.cmd_keys['ctrl']:
+                    mod = mod + _("Ctrl+")
+                if self.cmd_keys['alt']:
+                    mod = mod + _("Alt+")
+                if self.cmd_keys['super']:
+                    mod = mod + _("Super+")
+
+                if self.cmd_keys['shift']:
+                    key = key_shift
+                if self.cmd_keys['capslock'] \
+                    and ord(key_normal) in range(97,123):
+                    key = key_shift
+                if self.cmd_keys['meta']:
+                    key = key_dead
+                if self.cmd_keys['shift'] and self.cmd_keys['meta']:
+                    key = key_deadshift
+
+                string = self.replace_key(key, keysym)
+                if string:
+                    key = string
+
+                if mod != '':
+                    key = "%s%s " % (mod, key)
+                else:
+                    key = "%s%s" % (mod, key)
+            else:
+                return
+
+        return key
+
+    def key_raw_mode(self, event):
+        key = ''
+        if event.type == X.KeyPress:
+            keysym = self.local_dpy.keycode_to_keysym(event.detail, 0)
+            key = self.lookup_keysym(keysym)
+        else:
+            return
+        return key
+
+    def stop(self):
+        self.local_dpy.record_disable_context(self.ctx)
+        self.local_dpy.flush()
+        self.record_dpy.record_free_context(self.ctx)
+        self.logger.debug("Thread stopped.")
+

screenkey/Screenkey/modmap.py

+#!/usr/bin/env python
+# Copyright (c) 2010 Pablo Seminario <pabluk@gmail.com>
+# 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/>.
+
+
+import re
+import subprocess
+
+def cmd_keymap_table():
+    return subprocess.Popen(
+           ['xmodmap','-pk'], stdout=subprocess.PIPE).communicate()[0]
+
+def cmd_modifier_map():
+    return subprocess.Popen(
+            ['xmodmap','-pm'], stdout=subprocess.PIPE).communicate()[0]
+
+def get_keymap_table():
+    keymap = {}
+
+    keymap_table = cmd_keymap_table()
+
+    re_line = re.compile(r'0x\w+')
+    for line in keymap_table.split('\n')[1:]:
+        if len(line) > 0:
+            keycode = re.search(r'\s+(\d+).*', line)
+            if keycode:
+                new_keysyms = []
+                keycode = int(keycode.group(1))
+                keysyms = re_line.findall(line)
+                # When you press only one key
+                unicode_char = ''
+                try:
+                    unicode_char = unichr(int(keysyms[0], 16))
+                except:
+                    unicode_char = ''
+                if unicode_char == u'\x00':
+                    unicode_char = ''
+                new_keysyms.append(unicode_char)
+
+                # When you press a key plus Shift key
+                unicode_char = ''
+                try:
+                    unicode_char = unichr(int(keysyms[1], 16))
+                except:
+                    unicode_char = ''
+                if unicode_char == u'\x00':
+                    unicode_char = ''
+                new_keysyms.append(unicode_char)
+
+                # When you press a key plus meta (dead keys)
+                unicode_char = ''
+                try:
+                    unicode_char = unichr(int(keysyms[4], 16))
+                except:
+                    unicode_char = ''
+                if unicode_char == u'\x00':
+                    unicode_char = ''
+                new_keysyms.append(unicode_char)
+
+                # When you press a key plus meta plus Shift key
+                unicode_char = ''
+                try:
+                    unicode_char = unichr(int(keysyms[5], 16))
+                except:
+                    unicode_char = ''
+                if unicode_char == u'\x00':
+                    unicode_char = ''
+                new_keysyms.append(unicode_char)
+
+    		#keymap[keycode-8] = new_keysyms
+    		keymap[keycode] = new_keysyms
+
+    return keymap
+
+def get_modifier_map():
+    modifiers = {}
+
+    modifier_map = cmd_modifier_map()
+
+    re_line = re.compile(r'(0x\w+)')
+    for line in modifier_map.split('\n')[1:]:
+        if len(line) > 0:
+            mod_name = re.match(r'(\w+).*', line)
+            if mod_name:
+                mod_name = mod_name.group(1)
+                keycodes = re_line.findall(line)
+                # Convert key codes from hex to dec for use them
+                # with the keymap table
+                keycodes =[ int(kc, 16) for kc in keycodes]
+                
+                modifiers[mod_name] = keycodes
+
+    return modifiers
+

screenkey/Screenkey/screenkey.py

+# Copyright (c) 2010 Pablo Seminario <pabluk@gmail.com>
+# 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/>.
+
+import os
+import pygtk
+pygtk.require('2.0')
+import gtk
+import gobject
+import glib
+import cairo
+import pango
+import pickle
+from threading import Timer
+
+from Screenkey import APP_NAME, APP_DESC, APP_URL, VERSION, AUTHOR
+from listenkbd import ListenKbd
+
+POS_TOP = 0
+POS_CENTER = 1
+POS_BOTTOM = 2
+
+SIZE_LARGE = 0
+SIZE_MEDIUM = 1
+SIZE_SMALL = 2
+
+MODE_RAW = 0
+MODE_NORMAL = 1
+
+class Screenkey(gtk.Window):
+
+    POSITIONS = {
+        POS_TOP:_('Top'),
+        POS_CENTER:_('Center'),
+        POS_BOTTOM:_('Bottom'),
+    }
+    SIZES = {
+        SIZE_LARGE:_('Large'),
+        SIZE_MEDIUM:_('Medium'),
+        SIZE_SMALL:_('Small'),
+    }
+    MODES = {
+        MODE_RAW:_('Raw'),
+        MODE_NORMAL:_('Normal'),
+    }
+
+    STATE_FILE = os.path.join(glib.get_user_cache_dir(), 
+                              'screenkey.dat')
+
+    def __init__(self, logger, nodetach):
+        gtk.Window.__init__(self)
+
+        self.timer = None
+        self.logger = logger
+
+        default_options = {
+            'timeout': 2.5,
+            'position': POS_BOTTOM,
+            'size': SIZE_MEDIUM,
+            'opacity': 0.7,
+            'mode': MODE_NORMAL,
+            }
+
+        self.options = self.load_state()
+        for key, value in default_options.items():
+            if key not in self.options:
+                self.options[key] = value
+
+        if not nodetach:
+            self.logger.debug("Detach from the parent.")
+            self.drop_tty()
+
+        self.set_skip_taskbar_hint(True)
+        self.set_skip_pager_hint(True)
+        self.set_keep_above(True)
+        self.set_decorated(False)
+        self.stick()
+        self.set_property('accept-focus', False)
+        self.set_property('focus-on-map', False)
+        self.set_position(gtk.WIN_POS_CENTER)
+
+        self.bgcolor = gtk.gdk.color_parse("black")
+        self.modify_bg(gtk.STATE_NORMAL, self.bgcolor)
+
+        gobject.signal_new("text-changed", gtk.Label, 
+                        gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ())
+        self.label = gtk.Label()
+        self.label.set_justify(gtk.JUSTIFY_RIGHT)
+        self.label.set_ellipsize(pango.ELLIPSIZE_START)
+        self.label.connect("text-changed", self.on_label_change)
+        self.label.show()
+        self.add(self.label)
+