How to use the common.gajim.config.get function in common

self.tree.enable_model_drag_source(gtk.gdk.BUTTON1_MASK, TARGETS,
			gtk.gdk.ACTION_DEFAULT | gtk.gdk.ACTION_MOVE | gtk.gdk.ACTION_COPY)
		self.tree.enable_model_drag_dest(TARGETS2, gtk.gdk.ACTION_DEFAULT)
		self.tree.connect('drag_data_get', self.drag_data_get_data)
		self.tree.connect('drag_data_received', self.drag_data_received_data)
		self.xml.signal_autoconnect(self)
		self.combobox_callback_active = True

		self.collapsed_rows = gajim.config.get('collapsed_rows').split('\t')
		self.tooltip = tooltips.RosterTooltip()
		self.draw_roster()

		if gajim.config.get('show_roster_on_startup'):
			self.window.show_all()
		else:
			if not gajim.config.get('trayicon'):
				# cannot happen via GUI, but I put this incase user touches
				# config. without trayicon, he or she should see the roster!
				self.window.show_all()
				gajim.config.set('show_roster_on_startup', True)

		if len(gajim.connections) == 0: # if we have no account
			gajim.interface.instances['account_creation_wizard'] = \
				config.AccountCreationWizardWindow()

def show_title(self, urgent=True, control=None):
		'''redraw the window's title'''
		if not control:
			control = self.get_active_control()
		if not control:
			# No more control in this window
			return
		unread = 0
		for ctrl in self.controls():
			if ctrl.type_id == message_control.TYPE_GC and not \
			gajim.config.get('notify_on_all_muc_messages') and not \
			ctrl.attention_flag:
				# count only pm messages
				unread += ctrl.get_nb_unread_pm()
				continue
			unread += ctrl.get_nb_unread()

		unread_str = ''
		if unread > 1:
			unread_str = '[' + unicode(unread) + '] '
		elif unread == 1:
			unread_str = '* '
		else:
			urgent = False

		if control.type_id == message_control.TYPE_GC:
			name = control.room_jid.split('@')[0]

elif ((sys.platform == 'darwin') and\
			(gajim.config.get('openwith') == 'open')):
				self.applications_combobox.set_active(1)
			elif gajim.config.get('openwith') == 'custom':
				if sys.platform == 'darwin':
					self.applications_combobox.set_active(2)
				else:
					self.applications_combobox.set_active(4)
				self.xml.get_widget('custom_apps_frame').show()

			self.xml.get_widget('custom_browser_entry').set_text(
				gajim.config.get('custombrowser'))
			self.xml.get_widget('custom_mail_client_entry').set_text(
				gajim.config.get('custommailapp'))
			self.xml.get_widget('custom_file_manager_entry').set_text(
				gajim.config.get('custom_file_manager'))

		# log status changes of contacts
		st = gajim.config.get('log_contact_status_changes')
		self.xml.get_widget('log_show_changes_checkbutton').set_active(st)

		# log encrypted chat sessions
		st = gajim.config.get('log_encrypted_sessions')
		self.xml.get_widget('log_encrypted_chats_checkbutton').set_active(st)

		# send os info
		st = gajim.config.get('send_os_info')
		self.xml.get_widget('send_os_info_checkbutton').set_active(st)

		# check if gajm is default
		st = gajim.config.get('check_if_gajim_is_default')
		self.xml.get_widget('check_default_client_checkbutton').set_active(st)

elif ((sys.platform == 'darwin') and\
			(gajim.config.get('openwith') == 'open')):
				self.applications_combobox.set_active(1)
			elif gajim.config.get('openwith') == 'custom':
				if sys.platform == 'darwin':
					self.applications_combobox.set_active(2)
				else:
					self.applications_combobox.set_active(4)
				self.xml.get_widget('custom_apps_frame').show()

			self.xml.get_widget('custom_browser_entry').set_text(
				gajim.config.get('custombrowser'))
			self.xml.get_widget('custom_mail_client_entry').set_text(
				gajim.config.get('custommailapp'))
			self.xml.get_widget('custom_file_manager_entry').set_text(
				gajim.config.get('custom_file_manager'))

		# log status changes of contacts
		st = gajim.config.get('log_contact_status_changes')
		self.xml.get_widget('log_show_changes_checkbutton').set_active(st)

		# log encrypted chat sessions
		st = gajim.config.get('log_encrypted_sessions')
		self.xml.get_widget('log_encrypted_chats_checkbutton').set_active(st)

		# send os info
		st = gajim.config.get('send_os_info')
		self.xml.get_widget('send_os_info_checkbutton').set_active(st)

		# check if gajm is default
		st = gajim.config.get('check_if_gajim_is_default')
		self.xml.get_widget('check_default_client_checkbutton').set_active(st)

def restore_conversation(self, jid):
		# don't restore lines if it's a transport
		if gajim.jid_is_transport(jid):
			return
		
		# How many lines to restore and when to time them out
		restore_how_many = gajim.config.get('restore_lines')
		timeout = gajim.config.get('restore_timeout') # in minutes
		# number of messages that are in queue and are already logged
		pending_how_many = 0 # we want to avoid duplication
		
		if gajim.awaiting_events[self.account].has_key(jid):
			events = gajim.awaiting_events[self.account][jid]
			for event in events:
				if event[0] == 'chat':
					pending_how_many += 1

		rows = gajim.logger.get_last_conversation_lines(jid, restore_how_many,
			pending_how_many, timeout)
		
		for row in rows: # row[0] time, row[1] has kind, row[2] the message
			if not row[2]: # message is empty, we don't print it
				continue

gajim.automatic_rooms[self.account] = {}
		gajim.newly_added[self.account] = []
		gajim.to_be_removed[self.account] = []
		gajim.nicks[self.account] = config['name']
		gajim.block_signed_in_notifications[self.account] = True
		gajim.sleeper_state[self.account] = 'off'
		gajim.encrypted_chats[self.account] = []
		gajim.last_message_time[self.account] = {}
		gajim.status_before_autoaway[self.account] = ''
		gajim.transport_avatar[self.account] = {}
		# refresh accounts window
		if gajim.interface.instances.has_key('accounts'):
			gajim.interface.instances['accounts'].init_accounts()
		# refresh roster
		if len(gajim.connections) >= 2: # Do not merge accounts if only one exists
			gajim.interface.roster.regroup = gajim.config.get('mergeaccounts') 
		else: 
			gajim.interface.roster.regroup = False
		gajim.interface.roster.draw_roster()
		gajim.interface.roster.actions_menu_needs_rebuild = True
		gajim.interface.save_config()

if file_props['error'] == 0:
			ft.set_progress(file_props['type'], file_props['sid'], 
				file_props['received-len'])
		else:
			ft.set_status(file_props['type'], file_props['sid'], 'stop')
		if file_props.has_key('stalled') and file_props['stalled'] or \
			file_props.has_key('paused') and file_props['paused']:
			return
		if file_props['type'] == 'r': # we receive a file
			jid = unicode(file_props['sender'])
		else: # we send a file
			jid = unicode(file_props['receiver'])

		if helpers.allow_popup_window(account):
			if file_props['error'] == 0:
				if gajim.config.get('notify_on_file_complete'):
					ft.show_completed(jid, file_props)
			elif file_props['error'] == -1:
				ft.show_stopped(jid, file_props)
			return

		msg_type = ''
		event_type = ''
		if file_props['error'] == 0 and gajim.config.get('notify_on_file_complete'):
			msg_type = 'file-completed'
			event_type = _('File Transfer Completed')
		elif file_props['error'] == -1:
			msg_type = 'file-stopped'
			event_type = _('File Transfer Stopped')
		
		if event_type == '': 
			# FIXME: ugly workaround (this can happen Gajim sent, Gaim recvs)

def on_reset_colors_button_clicked(self, widget):
		for i in ('inmsgcolor', 'outmsgcolor', 'statusmsgcolor', 'urlmsgcolor'):
			gajim.config.set(i, gajim.interface.default_colors[i])

		self.xml.get_widget('incoming_msg_colorbutton').set_color(\
			gtk.gdk.color_parse(gajim.config.get('inmsgcolor')))
		self.xml.get_widget('outgoing_msg_colorbutton').set_color(\
			gtk.gdk.color_parse(gajim.config.get('outmsgcolor')))
		self.xml.get_widget('status_msg_colorbutton').set_color(\
			gtk.gdk.color_parse(gajim.config.get('statusmsgcolor')))
		self.xml.get_widget('url_msg_colorbutton').set_color(\
			gtk.gdk.color_parse(gajim.config.get('urlmsgcolor')))
		self.update_text_tags()
		gajim.interface.save_config()

event.keyval = event_keyval
		event.state = event_keymod
		event.time = 0 # assign current time

		if event.keyval == gtk.keysyms.Up:
			if event.state & gtk.gdk.CONTROL_MASK: # Ctrl+UP
				self.sent_messages_scroll('up', widget.get_buffer())
		elif event.keyval == gtk.keysyms.Down:
			if event.state & gtk.gdk.CONTROL_MASK: # Ctrl+Down
				self.sent_messages_scroll('down', widget.get_buffer())
		elif event.keyval == gtk.keysyms.Return or \
			event.keyval == gtk.keysyms.KP_Enter: # ENTER
			# NOTE: SHIFT + ENTER is not needed to be emulated as it is not
			# binding at all (textview's default action is newline)

			if gajim.config.get('send_on_ctrl_enter'):
				# here, we emulate GTK default action on ENTER (add new line)
				# normally I would add in keypress but it gets way to complex
				# to get instant result on changing this advanced setting
				if event.state == 0: # no ctrl, no shift just ENTER add newline
					end_iter = message_buffer.get_end_iter()
					message_buffer.insert_at_cursor('\n')
					send_message = False
				elif event.state & gtk.gdk.CONTROL_MASK: # CTRL + ENTER
					send_message = True
			else: # send on Enter, do newline on Ctrl Enter
				if event.state & gtk.gdk.CONTROL_MASK: # Ctrl + ENTER
					end_iter = message_buffer.get_end_iter()
					message_buffer.insert_at_cursor('\n')
					send_message = False
				else: # ENTER
					send_message = True