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# -*- coding: UTF-8 -*-
#
# Carbou - On-screen Keyboard and UI navigation application
#
# Copyright (C) 2009 Adaptive Technology Resource Centre
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation; either version 2.1 of the License, or (at your
# option) any later version.
#
# This 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 Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import gtk
import gobject
import gtk.gdk as gdk
import pango
import virtkey
import qwerty
class CaribouPredicitionArea(gtk.HBox):
pass
# TODO validate keyboard by creating this object and catching exception
class CaribouKeyboard(gtk.Frame):
def __init__(self, keyboard):
gtk.Frame.__init__(self)
self.set_shadow_type(gtk.SHADOW_NONE)
# FIXME use references instead of this??
self._layouts = []
self._vk = virtkey.virtkey()
switch_buttons = []
for layout in keyboard.layouts:
layoutvbox = gtk.VBox(homogeneous=True)
layoutvbox.set_name(layout)
layout = getattr(keyboard, layout)
for row in layout:
rowhbox = gtk.HBox(homogeneous=True)
for key in row:
# check if the key is a simple str or a key defined by a tuple
if isinstance(key, str):
button = gtk.Button(key)
char = ord(key.decode('utf-8'))
button.connect("clicked", self.__send_unicode, char)
elif isinstance(key, tuple):
button = gtk.Button(key[0])
# check if this key is a layout switch key or not
if isinstance(key[1], str):
# switch layout key
# set layer name on button and save to process later
button.set_name(key[1])
switch_buttons.append(button)
else:
# regular key
button.connect("clicked", self.__send_keysym, key[1])
else:
pass #TODO throw error here
rowhbox.pack_start(button, expand=False, fill=True)
layoutvbox.pack_start(rowhbox, expand=False, fill=False)
self._layouts.append(layoutvbox)
for button in switch_buttons:
for layout in self._layouts:
if button.get_name() == layout.get_name():
button.connect("clicked", self.__change_layout, layout)
button.set_name("")
break
else:
print "ERROR" # TODO throw exception
# add the first layer and make it visible
self.add(self._layouts[0])
self.show_all()
def __send_unicode(self, widget, data):
self._vk.press_unicode(data)
self._vk.release_unicode(data)
def __send_keysym(self, widget, data):
self._vk.press_keysym(data)
self._vk.release_keysym(data)
def __change_layout(self, widget, data):
self.remove(self.get_child())
self.add(data)
self.show_all()
gobject.type_register(CaribouKeyboard)
class CaribouWindow(gtk.VBox):
__gtype_name__ = "CaribouWindow"
def __init__(self):
super(CaribouWindow, self).__init__()
self.set_name("CaribouWindow")
self.__toplevel = gtk.Window(gtk.WINDOW_POPUP)
self.__toplevel.add(self)
self.__toplevel.connect("size-allocate", lambda w, a: self.__check_position())
self.__cursor_location = (0, 0)
self.pack_start(CaribouKeyboard(qwerty))
def set_cursor_location(self, x, y):
#print "----> SET CURSOR LOCATION"
self.__cursor_location = (x, y)
self.__check_position()
def do_size_request(self, requisition):
#print "---->> DO SIZE REQUEST"
gtk.VBox.do_size_request(self, requisition)
self.__toplevel.resize(1, 1)
def __check_position(self):
#print "---->>> CHECK POSITION"
bx = self.__cursor_location[0] + self.__toplevel.allocation.width
by = self.__cursor_location[1] + self.__toplevel.allocation.height
root_window = gdk.get_default_root_window()
sx, sy = root_window.get_size()
if bx > sx:
x = sx - self.__toplevel.allocation.width
else:
x = self.__cursor_location[0]
if by > sy:
y = sy - self.__toplevel.allocation.height
else:
y = self.__cursor_location[1]
self.move(x, y)
def show_all(self):
gtk.VBox.show_all(self)
self.__toplevel.show_all()
def hide_all(self):
gtk.VBox.hide_all(self)
self.__toplevel.hide_all()
def move(self, x, y):
self.__toplevel.move(x, y)
if __name__ == "__main__":
ckbd = CaribouWindow()
ckbd.show_all()
gtk.main()
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