#!/usr/bin/env python # vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab # # Copyright (c) 2009, Emmanuel Bretelle # # 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, version 2 only. # # 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, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor # , Boston, MA 02110-1301 USA # pylint: disable-msg=W0212 """ Editable Label class""" import gtk import gobject class EditableLabel(gtk.EventBox): """ An eventbox that partialy emulate a gtk.Label On double-click, the label is editable, entering an empty will revert back to automatic text """ _label = None _ebox = None _autotext = None _custom = None _entry = None _entry_handler_id = [] __gsignals__ = { 'edit-done': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), } def __init__(self, text = ""): """ Class initialiser""" gtk.EventBox.__init__(self) self.__gobject_init__() self._label = gtk.Label(text) self._custom = False self.set_visible_window (False) self.add (self._label) self.connect ("button-press-event", self._on_click_text) def set_angle(self, angle ): """set angle of the label""" self._label.set_angle( angle ) def set_text( self, text, force=False): """set the text of the label""" self._autotext = text if not self._custom or force: self._label.set_text(text) def get_text( self ): """get the text from the label""" return self._label.get_text() def _on_click_text(self, widget, event): """event handling text edition""" if event.type == gtk.gdk._2BUTTON_PRESS: self.remove (self._label) self._entry = gtk.Entry () self._entry.set_text (self._label.get_text ()) self._entry.show () self.add (self._entry) sig = self._entry.connect ("focus-out-event", self._entry_to_label) self._entry_handler_id.append(sig) sig = self._entry.connect ("activate", self._on_entry_activated) self._entry_handler_id.append(sig) sig = self._entry.connect ("key-press-event", self._on_entry_keypress) self._entry_handler_id.append(sig) self._entry.grab_focus () return True # make pylint happy if 1 or widget or event: return False def _entry_to_label (self, widget, event): """replace gtk.Entry by the gtk.Label""" if self._entry and self._entry in self.get_children(): #disconnect signals to avoid segfault :s for sig in self._entry_handler_id: if self._entry.handler_is_connected(sig): self._entry.disconnect(sig) self._entry_handler_id = [] self.remove (self._entry) self.add (self._label) self._entry = None self.show_all () self.emit('edit-done') return True #make pylint happy if 1 or widget or event: return False def _on_entry_activated (self, widget): """get the text entered in gtk.Entry""" entry = self._entry.get_text () label = self._label.get_text () if entry == '': self._custom = False self.set_text (self._autotext) elif entry != label: self._custom = True self._label.set_text (entry) self._entry_to_label (None, None) # make pylint happy if 1 or widget: return def _on_entry_keypress (self, widget, event): """handle keypressed in gtk.Entry""" key = gtk.gdk.keyval_name (event.keyval) if key == 'Escape': self._entry_to_label (None, None) # make pylint happy if 1 or widget or event: return gobject.type_register(EditableLabel)