#!/usr/bin/env python # -*- Mode: Python; py-indent-offset: 4 -*- # vim: tabstop=4 shiftwidth=4 expandtab # # Copyright (C) 2010 Red Hat, Inc., John (J5) Palmieri # # This library 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 library 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 library; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 # USA title = "Combo boxes" description = """ The ComboBox widget allows to select one option out of a list. The ComboBoxEntry additionally allows the user to enter a value that is not in the list of options. How the options are displayed is controlled by cell renderers. """ from gi.repository import Gtk, Gdk, GdkPixbuf, GLib, GObject (PIXBUF_COL, TEXT_COL) = range(2) class MaskEntry(Gtk.Entry): __gtype_name__ = 'MaskEntry' def __init__(self, mask=None): self.mask = mask super(MaskEntry, self).__init__() self.connect('changed', self.changed_cb) self.error_color = Gdk.RGBA() self.error_color.red = 1.0 self.error_color.green = 0.9 self.error_color_blue = 0.9 self.error_color.alpha = 1.0 # workaround since override_color doesn't accept None yet style_ctx = self.get_style_context() self.normal_color = style_ctx.get_color(0) def set_background(self): if self.mask: if not GLib.regex_match_simple(self.mask, self.get_text(), 0, 0): self.override_color(0, self.error_color) return self.override_color(0, self.normal_color) def changed_cb(self, entry): self.set_background() class ComboboxApp: def __init__(self, demoapp): self.demoapp = demoapp self.window = Gtk.Window() self.window.set_title('Combo boxes') self.window.set_border_width(10) self.window.connect('destroy', lambda w: Gtk.main_quit()) vbox = Gtk.VBox(homogeneous=False, spacing=2) self.window.add(vbox) frame = Gtk.Frame(label='Some stock icons') vbox.pack_start(frame, False, False, 0) box = Gtk.VBox(homogeneous=False, spacing=0) box.set_border_width(5) frame.add(box) model = self.create_stock_icon_store() combo = Gtk.ComboBox(model=model) box.add(combo) renderer = Gtk.CellRendererPixbuf() combo.pack_start(renderer, False) # FIXME: override set_attributes combo.add_attribute(renderer, 'pixbuf', PIXBUF_COL) combo.set_cell_data_func(renderer, self.set_sensitive, None) renderer = Gtk.CellRendererText() combo.pack_start(renderer, True) combo.add_attribute(renderer, 'text', TEXT_COL) combo.set_cell_data_func(renderer, self.set_sensitive, None) combo.set_row_separator_func(self.is_separator, None) combo.set_active(0) # a combobox demonstrating trees frame = Gtk.Frame(label='Where are we ?') vbox.pack_start(frame, False, False, 0) box = Gtk.VBox(homogeneous=False, spacing=0) box.set_border_width(5) frame.add(box) model = self.create_capital_store() combo = Gtk.ComboBox(model=model) box.add(combo) renderer = Gtk.CellRendererText() combo.pack_start(renderer, True) combo.add_attribute(renderer, 'text', 0) combo.set_cell_data_func(renderer, self.is_capital_sensistive, None) # FIXME: make new_from_indices work # make constructor take list or string of indices path = Gtk.TreePath.new_from_string('0:8') treeiter = model.get_iter(path) combo.set_active_iter(treeiter) # A GtkComboBoxEntry with validation. frame = Gtk.Frame(label='Editable') vbox.pack_start(frame, False, False, 0) box = Gtk.VBox(homogeneous=False, spacing=0) box.set_border_width(5) frame.add(box) combo = Gtk.ComboBoxText.new_with_entry() self.fill_combo_entry(combo) box.add(combo) entry = MaskEntry(mask='^([0-9]*|One|Two|2\302\275|Three)$') Gtk.Container.remove(combo, combo.get_child()) combo.add(entry) # A combobox with string IDs frame = Gtk.Frame(label='String IDs') vbox.pack_start(frame, False, False, 0) box = Gtk.VBox(homogeneous=False, spacing=0) box.set_border_width(5) frame.add(box) # FIXME: model is not setup when constructing Gtk.ComboBoxText() # so we call new() - Gtk should fix this to setup the model # in __init__, not in the constructor combo = Gtk.ComboBoxText.new() combo.append('never', 'Not visible') combo.append('when-active', 'Visible when active') combo.append('always', 'Always visible') box.add(combo) entry = Gtk.Entry() combo.bind_property('active-id', entry, 'text', GObject.BindingFlags.BIDIRECTIONAL) box.add(entry) self.window.show_all() def strip_underscore(self, s): return s.replace('_', '') def create_stock_icon_store(self): stock_id = (Gtk.STOCK_DIALOG_WARNING, Gtk.STOCK_STOP, Gtk.STOCK_NEW, Gtk.STOCK_CLEAR, None, Gtk.STOCK_OPEN) cellview = Gtk.CellView() store = Gtk.ListStore(GdkPixbuf.Pixbuf, str) for id in stock_id: if id is not None: pixbuf = cellview.render_icon(id, Gtk.IconSize.BUTTON, None) item = Gtk.stock_lookup(id) label = self.strip_underscore(item.label) store.append((pixbuf, label)) else: store.append((None, 'separator')) return store def set_sensitive(self, cell_layout, cell, tree_model, treeiter, data): """ A GtkCellLayoutDataFunc that demonstrates how one can control sensitivity of rows. This particular function does nothing useful and just makes the second row insensitive. """ path = tree_model.get_path(treeiter) indices = path.get_indices() sensitive = not(indices[0] == 1) cell.set_property('sensitive', sensitive) def is_separator(self, model, treeiter, data): """ A GtkTreeViewRowSeparatorFunc that demonstrates how rows can be rendered as separators. This particular function does nothing useful and just turns the fourth row into a separator. """ path = model.get_path(treeiter) indices = path.get_indices() result = (indices[0] == 4) return result def create_capital_store(self): capitals = ( {'group': 'A - B', 'capital': None}, {'group': None, 'capital': 'Albany'}, {'group': None, 'capital': 'Annapolis'}, {'group': None, 'capital': 'Atlanta'}, {'group': None, 'capital': 'Augusta'}, {'group': None, 'capital': 'Austin'}, {'group': None, 'capital': 'Baton Rouge'}, {'group': None, 'capital': 'Bismarck'}, {'group': None, 'capital': 'Boise'}, {'group': None, 'capital': 'Boston'}, {'group': 'C - D', 'capital': None}, {'group': None, 'capital': 'Carson City'}, {'group': None, 'capital': 'Charleston'}, {'group': None, 'capital': 'Cheyeene'}, {'group': None, 'capital': 'Columbia'}, {'group': None, 'capital': 'Columbus'}, {'group': None, 'capital': 'Concord'}, {'group': None, 'capital': 'Denver'}, {'group': None, 'capital': 'Des Moines'}, {'group': None, 'capital': 'Dover'}, {'group': 'E - J', 'capital': None}, {'group': None, 'capital': 'Frankfort'}, {'group': None, 'capital': 'Harrisburg'}, {'group': None, 'capital': 'Hartford'}, {'group': None, 'capital': 'Helena'}, {'group': None, 'capital': 'Honolulu'}, {'group': None, 'capital': 'Indianapolis'}, {'group': None, 'capital': 'Jackson'}, {'group': None, 'capital': 'Jefferson City'}, {'group': None, 'capital': 'Juneau'}, {'group': 'K - O', 'capital': None}, {'group': None, 'capital': 'Lansing'}, {'group': None, 'capital': 'Lincon'}, {'group': None, 'capital': 'Little Rock'}, {'group': None, 'capital': 'Madison'}, {'group': None, 'capital': 'Montgomery'}, {'group': None, 'capital': 'Montpelier'}, {'group': None, 'capital': 'Nashville'}, {'group': None, 'capital': 'Oklahoma City'}, {'group': None, 'capital': 'Olympia'}, {'group': 'P - S', 'capital': None}, {'group': None, 'capital': 'Phoenix'}, {'group': None, 'capital': 'Pierre'}, {'group': None, 'capital': 'Providence'}, {'group': None, 'capital': 'Raleigh'}, {'group': None, 'capital': 'Richmond'}, {'group': None, 'capital': 'Sacramento'}, {'group': None, 'capital': 'Salem'}, {'group': None, 'capital': 'Salt Lake City'}, {'group': None, 'capital': 'Santa Fe'}, {'group': None, 'capital': 'Springfield'}, {'group': None, 'capital': 'St. Paul'}, {'group': 'T - Z', 'capital': None}, {'group': None, 'capital': 'Tallahassee'}, {'group': None, 'capital': 'Topeka'}, {'group': None, 'capital': 'Trenton'} ) parent = None store = Gtk.TreeStore(str) for item in capitals: if item['group']: parent = store.append(None, (item['group'],)) elif item['capital']: store.append(parent, (item['capital'],)) return store def is_capital_sensistive(self, cell_layout, cell, tree_model, treeiter, data): sensitive = not tree_model.iter_has_child(treeiter) cell.set_property('sensitive', sensitive) def fill_combo_entry(self, entry): entry.append_text('One') entry.append_text('Two') entry.append_text('2\302\275') entry.append_text('Three') def main(demoapp=None): ComboboxApp(demoapp) Gtk.main() if __name__ == '__main__': main()