Viewing file:  ColorblindPreferencesUI.py (17.33 KB) -rw-r--r--
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from gettext import gettext as _
from os.path import join, isdir
import os
import struct
import gtk, gtk.gdk, gobject, gconf
import colorblind, colorblind.Utils, colorblind.ColorblindApplet
MAXINT = 2 ** ((8 * struct.calcsize('i')) - 1) - 1
class AccelEntry( gobject.GObject ):
__gsignals__ = {
'accel-edited': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE,
[gobject.TYPE_STRING, gobject.TYPE_UINT, gobject.TYPE_UINT, gobject.TYPE_UINT]),
'keyboard-shortcut' : (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, [gobject.TYPE_STRING, gobject.TYPE_UINT]),
}
__gproperties__ = {
'accel_key': ( gobject.TYPE_UINT, "Accelerator key", "Accelerator key", 0, MAXINT, 0, gobject.PARAM_READWRITE ),
'accel_mods': ( gobject.TYPE_FLAGS, "Accelerator modifiers", "Accelerator modifiers", 0, gobject.PARAM_READWRITE ),
'keycode': ( gobject.TYPE_UINT, "Accelerator keycode", "Accelerator keycode", 0, MAXINT, 0, gobject.PARAM_READWRITE ),
}
FORBIDDEN_KEYS = (gtk.keysyms.BackSpace, gtk.keysyms.Begin, gtk.keysyms.Delete, gtk.keysyms.End, gtk.keysyms.Down,
gtk.keysyms.Home, gtk.keysyms.Insert, gtk.keysyms.Left, gtk.keysyms.Page_Down, gtk.keysyms.Page_Up,
gtk.keysyms.Right, gtk.keysyms.Tab, gtk.keysyms.Up, gtk.keysyms.bar, gtk.keysyms.braceleft,
gtk.keysyms.braceright, gtk.keysyms.colon, gtk.keysyms.comma, gtk.keysyms.dollar, gtk.keysyms.equal,
gtk.keysyms.exclam, gtk.keysyms.hyphen, gtk.keysyms.period, gtk.keysyms.percent, gtk.keysyms.question,
gtk.keysyms.quotedbl, gtk.keysyms.semicolon, gtk.keysyms.slash, gtk.keysyms.space, gtk.keysyms.underscore)
def __init__(self, accel_name='', cb_pref_ui = None):
self.__old_value = None
self._attributes = {'accel_key': 0, 'accel_mods': 0, 'keycode': 0}
self._cb_pref_ui = cb_pref_ui
gobject.GObject.__init__(self)
self.entry = gtk.Entry()
self.entry.set_property('editable', False)
self.entry.connect('button-press-event', self.__on_button_press_event)
self.entry.connect('key-press-event', self.__on_key_press_event)
self.entry.connect('focus-out-event', self.__on_focus_out_event)
self.set_accelerator_name(accel_name)
def do_get_property(self, pspec):
if pspec.name in ('accel_key', 'accel_mods', 'keycode'):
return self._attributes[pspec.name]
def do_set_property(self, pspec, value):
if pspec.name == 'accel_key':
self.set_accelerator(int(value), self.get_property('keycode'), self.get_property('accel_mask'))
elif pspec.name == 'accel_mods':
self.set_accelerator(self.get_property('accel_key'), self.get_property('keycode'), int(value))
elif pspec.name == 'keycode':
self.set_accelerator(self.get_property('accel_key'), int(value), self.get_property('accel_mask'))
def get_accelerator_name(self):
return self.entry.get_text()
def set_accelerator_name(self, value):
if value == None:
value = ""
(keyval, mods) = gtk.accelerator_parse(value)
if gtk.accelerator_valid(keyval, mods):
self.entry.set_text(value)
return
def get_accelerator(self):
return ( self.get_property('accel_key'), self.get_property('keycode'), self.get_property('accel_mods') )
def set_accelerator(self, keyval, mods, keycode):
changed = False
self.freeze_notify()
if keyval != self._attributes['accel_key']:
self._attributes['accel_key'] = keyval
self.notify('accel_key')
changed = True
if mods != self._attributes['accel_mods']:
self._attributes['accel_mods'] = mods
self.notify('accel_mods')
changed = True
if keycode != self._attributes['keycode']:
self._attributes['keycode'] = keycode
self.notify('keycode')
changed = True
self.thaw_notify()
if changed:
text = self.__convert_keysym_state_to_string (keyval, keycode, mods)
self.entry.set_text(text)
def __convert_keysym_state_to_string(self, keysym, keycode, mask):
name = gtk.accelerator_name(keysym, mask)
if keysym == 0:
name = "%s0x%02x" % (name, keycode)
return name
def get_widget(self):
return self.entry
def __on_button_press_event(self, entry, event):
self.__old_value = self.entry.get_text()
entry.set_text( _('New accelerator...') )
entry.grab_focus()
return True
def __on_key_press_event(self, entry, event):
accel_mods = 0
edited = False
keymap = gtk.gdk.keymap_get_default()
translation = keymap.translate_keyboard_state(event.hardware_keycode, event.state, event.group)
if translation == None:
consumed_modifiers = 0
else:
(keyval, egroup, level, consumed_modifiers) = translation
accel_keyval = gtk.gdk.keyval_to_lower(event.keyval)
if (accel_keyval == gtk.keysyms.ISO_Left_Tab):
accel_keyval = gtk.keysyms.Tab
accel_mods = event.state & gtk.accelerator_get_default_mod_mask()
# Filter consumed modifiers
accel_mods &= ~consumed_modifiers
# Put shift back if it changed the case of the key, not otherwise.
if (accel_keyval != event.keyval):
accel_mods |= gtk.gdk.SHIFT_MASK
if accel_mods == 0:
if accel_keyval == gtk.keysyms.Escape:
self.__revert()
return
# Do not make keyboard unusable
if ( ((accel_mods == 0 or accel_mods == gtk.gdk.SHIFT_MASK) and accel_keyval >= gtk.keysyms.a and accel_keyval <= gtk.keysyms.z) # alphabet
or (accel_mods == 0 and (
(accel_keyval >= 48 and accel_keyval <= 57) # number keys
or (accel_keyval >= gtk.keysyms.kana_fullstop and accel_keyval <= gtk.keysyms.semivoicedsound)
or (accel_keyval >= gtk.keysyms.Arabic_comma and accel_keyval <= gtk.keysyms.Arabic_sukun)
or (accel_keyval >= gtk.keysyms.Serbian_dje and accel_keyval <= gtk.keysyms.Cyrillic_HARDSIGN)
or (accel_keyval >= gtk.keysyms.Greek_ALPHAaccent and accel_keyval <= gtk.keysyms.Greek_omega)
or (accel_keyval >= gtk.keysyms.hebrew_doublelowline and accel_keyval <= gtk.keysyms.hebrew_taf)
or (accel_keyval >= gtk.keysyms.Thai_kokai and accel_keyval <= gtk.keysyms.Thai_lekkao)
or (accel_keyval >= gtk.keysyms.Hangul and accel_keyval <= gtk.keysyms.Hangul_Special)
or (accel_keyval >= gtk.keysyms.Hangul_Kiyeog and accel_keyval <= gtk.keysyms.Hangul_J_YeorinHieuh)
))
or (accel_keyval in self.FORBIDDEN_KEYS)
or (accel_keyval == 0 and accel_mods != 0) ):
dialog = gtk.MessageDialog (self.entry.get_toplevel(),
gtk.DIALOG_DESTROY_WITH_PARENT | gtk.DIALOG_MODAL,
gtk.MESSAGE_WARNING,
gtk.BUTTONS_CANCEL,
_("The shortcut \"%s\" cannot be used because it will become impossible to type using this key.\nPlease try with a key such as Control, Alt or Shift at the same time.\n")
% gtk.accelerator_name(accel_keyval, accel_mods)
)
dialog.run()
dialog.destroy()
self.__revert()
return
if not gtk.accelerator_valid(accel_keyval, accel_mods):
self.__revert()
return
accel_name = self.__convert_keysym_state_to_string(accel_keyval, event.hardware_keycode, accel_mods)
# Yeah, I know, this is very ugly code, but I don't know how do
# it better for now... patches are welcome :-)
if entry == self._cb_pref_ui.get_on_off_entry().entry:
keybinding_switch_string = colorblind.GCONF_CLIENT.get_string(colorblind.GCONF_KEYBINDING_SWITCH)
if accel_name == keybinding_switch_string:
return
elif entry == self._cb_pref_ui.get_switch_entry().entry:
keybinding_on_off_string = colorblind.GCONF_CLIENT.get_string(colorblind.GCONF_KEYBINDING_ONOFF)
if accel_name == keybinding_on_off_string:
return
self.set_accelerator(accel_keyval, accel_mods, event.hardware_keycode)
self.__old_value = None
self.emit('accel-edited', accel_name, accel_keyval, accel_mods, event.hardware_keycode)
return True
def __on_focus_out_event(self, entry, event):
if self.__old_value != None:
self.__revert()
def __revert(self):
self.set_accelerator_name(self.__old_value)
class ColorblindPreferencesUI:
CB_FILTER_NO_FILTER, CB_FILTER_SELECTIVE_SATURATE_RED, CB_FILTER_SELECTIVE_SATURATE_GREEN, CB_FILTER_SELECTIVE_SATURATE_BLUE, CB_FILTER_SELECTIVE_DESATURATE_RED, CB_FILTER_SELECTIVE_DESATURATE_GREEN, CB_FILTER_SELECTIVE_DESATURATE_BLUE, CB_FILTER_POSITIVE_HUE_SHIFT, CB_FILTER_NEGATIVE_HUE_SHIFT = range (9)
def __init__(self, applet):
self.ui = gtk.Builder()
self.ui.add_from_file(join(colorblind.SHARED_DATA_DIR, "colorblind-prefs.ui"))
self.dialog = self.ui.get_object("window_preferences")
self.radio1 = self.ui.get_object("radio_filter_red_saturate")
self.radio2 = self.ui.get_object("radio_filter_green_saturate")
self.radio3 = self.ui.get_object("radio_filter_blue_saturate")
self.radio4 = self.ui.get_object("radio_filter_red_desaturate")
self.radio5 = self.ui.get_object("radio_filter_green_desaturate")
self.radio6 = self.ui.get_object("radio_filter_blue_desaturate")
self.radio7 = self.ui.get_object("radio_filter_positive_hue_shift")
self.radio8 = self.ui.get_object("radio_filter_negative_hue_shift")
self.hbox_default = self.ui.get_object("hbox_default")
self.combofilters = gtk.combo_box_new_text ()
self.hbox_default.add (self.combofilters)
self.combofilters.append_text (_("Selective Red Saturation"))
self.combofilters.append_text (_("Selective Green Saturation"))
self.combofilters.append_text (_("Selective Blue Saturation"))
self.combofilters.append_text (_("Selective Red Desaturation"))
self.combofilters.append_text (_("Selective Green Desaturation"))
self.combofilters.append_text (_("Selective Blue Desaturation"))
self.combofilters.append_text (_("Positive Hue Shift"))
self.combofilters.append_text (_("Negative Hue Shift"))
self.check_default_filter = self.ui.get_object("check_default_filter")
self.button_close = self.ui.get_object("button_close")
# Retreive current values
self.keybinding_on_off = colorblind.GCONF_CLIENT.get_string(applet.prefs.GCONF_KEYBINDING_ONOFF)
self.keyboard_shortcut_entry_on_off = AccelEntry("<Shift><Control>c", self)
self.keyboard_shortcut_entry_on_off.connect('accel-edited', self.on_keyboard_shortcut_entry_changed, colorblind.GCONF_KEYBINDING_ONOFF)
self.ui.get_object("table_shortcut").attach(self.keyboard_shortcut_entry_on_off.get_widget(), 1, 2, 0, 1)
self.keybinding_switch = colorblind.GCONF_CLIENT.get_string(applet.prefs.GCONF_KEYBINDING_SWITCH)
self.keyboard_shortcut_entry_switch = AccelEntry("<Shift><Control>n", self)
self.keyboard_shortcut_entry_switch.connect('accel-edited', self.on_keyboard_shortcut_entry_changed, colorblind.GCONF_KEYBINDING_SWITCH)
self.ui.get_object("table_shortcut").attach(self.keyboard_shortcut_entry_switch.get_widget(), 1, 2, 1, 2)
colorblind.GCONF_CLIENT.notify_add (colorblind.GCONF_COLORBLIND_FILTER, self.sync_ui)
self.colorblind_filter = colorblind.GCONF_CLIENT.get_int(colorblind.GCONF_COLORBLIND_FILTER)
if self.colorblind_filter == None:
self.colorblind_filter = self.CB_FILTER_POSITIVE_HUE_SHIFT
colorblind.GCONF_CLIENT.notify_add (colorblind.GCONF_DEFAULT_FILTER, self.sync_ui)
self.default_filter = colorblind.GCONF_CLIENT.get_int(colorblind.GCONF_DEFAULT_FILTER)
if self.colorblind_filter == None:
self.colorblind_filter = self.CB_FILTER_POSITIVE_HUE_SHIFT
self.check_default = colorblind.GCONF_CLIENT.get_bool(colorblind.GCONF_CHECK_DEFAULT)
if self.check_default == None:
self.check_default = False
self.sync_ui ()
self.set_ui_signals ()
def __on_radio_toggled_event (self, entry):
if entry == self.radio1:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_RED)
elif entry == self.radio2:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_GREEN)
elif entry == self.radio3:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_BLUE)
elif entry == self.radio4:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_RED)
elif entry == self.radio5:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_GREEN)
elif entry == self.radio6:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_BLUE)
elif entry == self.radio7:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_POSITIVE_HUE_SHIFT)
elif entry == self.radio8:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_COLORBLIND_FILTER, self.CB_FILTER_NEGATIVE_HUE_SHIFT)
colorblind.ColorblindApplet.active_actual_filter ()
def __on_changed_event (self, entry):
i = entry.get_active () + 1
if i == self.CB_FILTER_SELECTIVE_SATURATE_RED:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_RED)
elif i == self.CB_FILTER_SELECTIVE_SATURATE_GREEN:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_GREEN)
elif i == self.CB_FILTER_SELECTIVE_SATURATE_BLUE:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_SATURATE_BLUE)
elif i == self.CB_FILTER_SELECTIVE_DESATURATE_RED:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_RED)
elif i == self.CB_FILTER_SELECTIVE_DESATURATE_GREEN:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_GREEN)
elif i == self.CB_FILTER_SELECTIVE_DESATURATE_BLUE:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_SELECTIVE_DESATURATE_BLUE)
elif i == self.CB_FILTER_POSITIVE_HUE_SHIFT:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_POSITIVE_HUE_SHIFT)
elif i == self.CB_FILTER_NEGATIVE_HUE_SHIFT:
colorblind.GCONF_CLIENT.set_int(colorblind.GCONF_DEFAULT_FILTER, self.CB_FILTER_NEGATIVE_HUE_SHIFT)
def __on_check_toggled_event (self, entry):
state = entry.get_active ()
colorblind.GCONF_CLIENT.set_bool(colorblind.GCONF_CHECK_DEFAULT, state)
def __on_click_button_close_event (self, entry):
self.dialog.emit ('delete-event', gtk.gdk.Event (gtk.gdk.DELETE))
def __on_dialog_delete_event (self, entry, *extra):
self.dialog.destroy ()
colorblind.ColorblindApplet.pref_ui_unmapped ()
def set_ui_signals (self):
self.dialog.connect('delete-event', self.__on_dialog_delete_event)
self.radio1.connect('toggled', self.__on_radio_toggled_event)
self.radio2.connect('toggled', self.__on_radio_toggled_event)
self.radio3.connect('toggled', self.__on_radio_toggled_event)
self.radio4.connect('toggled', self.__on_radio_toggled_event)
self.radio5.connect('toggled', self.__on_radio_toggled_event)
self.radio6.connect('toggled', self.__on_radio_toggled_event)
self.radio7.connect('toggled', self.__on_radio_toggled_event)
self.radio8.connect('toggled', self.__on_radio_toggled_event)
self.combofilters.connect('changed', self.__on_changed_event)
self.check_default_filter.connect('toggled', self.__on_check_toggled_event)
self.button_close.connect ('clicked', self.__on_click_button_close_event)
def show_run_hide(self, parent):
self.sync_ui ()
self.dialog.set_screen(parent.get_screen())
self.dialog.show_all ()
self.mapped = True
def get_on_off_entry (self):
return self.keyboard_shortcut_entry_on_off
def get_switch_entry (self):
return self.keyboard_shortcut_entry_switch
def sync_ui(self, *extra):
if self.keybinding_on_off != None:
self.keyboard_shortcut_entry_on_off.set_accelerator_name(self.keybinding_on_off)
else:
self.keyboard_shortcut_entry_on_off.set_accelerator_name("<Shift><Control>c")
if self.keybinding_switch != None:
self.keyboard_shortcut_entry_switch.set_accelerator_name(self.keybinding_switch)
else:
self.keyboard_shortcut_entry_switch.set_accelerator_name("<Shift><Control>n")
self.colorblind_filter = colorblind.GCONF_CLIENT.get_int (colorblind.GCONF_COLORBLIND_FILTER)
self.default_filter = colorblind.GCONF_CLIENT.get_int (colorblind.GCONF_DEFAULT_FILTER)
self.check_default = colorblind.GCONF_CLIENT.get_bool (colorblind.GCONF_CHECK_DEFAULT)
if self.colorblind_filter == 1:
self.radio1.set_active (True)
elif self.colorblind_filter == 2:
self.radio2.set_active (True)
elif self.colorblind_filter == 3:
self.radio3.set_active (True)
elif self.colorblind_filter == 4:
self.radio4.set_active (True)
elif self.colorblind_filter == 5:
self.radio5.set_active (True)
elif self.colorblind_filter == 6:
self.radio6.set_active (True)
elif self.colorblind_filter == 7:
self.radio7.set_active (True)
elif self.colorblind_filter == 8:
self.radio8.set_active (True)
else:
self.radio7.set_active (True)
if self.default_filter == 1:
self.combofilters.set_active (0)
elif self.default_filter == 2:
self.combofilters.set_active (1)
elif self.default_filter == 3:
self.combofilters.set_active (2)
elif self.default_filter == 4:
self.combofilters.set_active (3)
elif self.default_filter == 5:
self.combofilters.set_active (4)
elif self.default_filter == 6:
self.combofilters.set_active (5)
elif self.default_filter == 7:
self.combofilters.set_active (6)
elif self.default_filter == 8:
self.combofilters.set_active (7)
else:
self.combofilters.set_active (6)
if self.check_default == True:
self.check_default_filter.set_active (True)
else:
self.check_default_filter.set_active (False)
def on_keyboard_shortcut_entry_changed(self, entry, accel_name, keyval, mods, keycode, keybinding):
if accel_name != "":
colorblind.GCONF_CLIENT.set_string(keybinding, accel_name)
return False
def show_preferences(applet):
ColorblindPreferencesUI (applet).show_run_hide(applet.applet)
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