Python ProxyComboBox.select_item_by_position方法代码示例

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class NumberSearchFilter(SearchFilter):
    """
    A filter which helps you to search by a number interval.
    """
    __gtype_name__ = 'NumberSearchFilter'

    def __init__(self, label=''):
        """
        Create a new NumberSearchFilter object.
        @param label: name of the search filter
        """

        self._options = {}

        SearchFilter.__init__(self, label=label)
        self.title_label = gtk.Label(label)
        self.title_label.set_alignment(1.0, 0.5)
        self.pack_start(self.title_label, False, False)
        self.title_label.show()

        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)
        self.mode.show()

        self.start = gtk.SpinButton(climb_rate=1.0)
        self.start.get_adjustment().step_increment = 1.0
        self.start.set_range(-sys.maxint-1, sys.maxint)
        self.pack_start(self.start, False, False, 6)
        self.start.show()
        self.start.connect_after('activate', self._on_entry__activate)

        self.and_label = gtk.Label(_("And"))
        self.pack_start(self.and_label, False, False)
        self.and_label.show()

        self.end = gtk.SpinButton(climb_rate=1.0)
        self.end.get_adjustment().step_increment = 1.0
        self.end.set_range(-sys.maxint-1, sys.maxint)
        self.pack_start(self.end, False, False, 6)
        self.end.show()
        self.end.connect_after('activate', self._on_entry__activate)

        for option in (LowerThan, EqualsTo, GreaterThan, Between):
            self.add_option(option)

        self.mode.select_item_by_position(0)

    def set_digits(self, digits):
        """
        Number of decimal place to be displayed
        @param digits: number of decimal places
        """
        self.start.set_digits(digits)
        self.end.set_digits(digits)

    #
    #   Private
    #

    def _update_visibility(self):
        option = self.mode.get_selected_data()
        numbers = option.numbers
        if numbers == 0:
            self.start.hide()
            self.and_label.hide()
            self.end.hide()
        elif numbers == 1:
            self.start.show()
            self.and_label.hide()
            self.end.hide()
        elif numbers == 2:
            self.start.show()
            self.and_label.show()
            self.end.show()


    #
    #   Callbacks
    #

    def _on_entry__activate(self, entry):
        self.emit('changed')

    def _on_mode__content_changed(self, combo):
        self._update_visibility()
        self.emit('changed')

    #
    #   SearchFilter
    #

    def get_state(self):
        # Using Decimals for better precision.
        start_value = Decimal("%.2f" % self.start.get_value())
        end_value = Decimal("%.2f" % self.end.get_value())
        option = self.mode.get_selected_data()

        start, end = option().get_interval(start_value, end_value)
        return NumberIntervalQueryState(filter=self, start=start, end=end)
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class MassEditorWidget(Gtk.HBox):
    _editors = {
        currency: DecimalEditor,
        Decimal: DecimalEditor,
        str: UnicodeEditor,
        datetime.date: DateEditor,
        object: ObjectEditor,
    }

    def __init__(self, store, fields, results):
        self._store = store
        self._editor = None
        self._fields = fields
        self._results = results
        super(MassEditorWidget, self).__init__(spacing=6)
        self._setup_widgets()

    def _filter_fields(self, data_type):
        return [f for f in self._fields if f.data_type == data_type]

    def _setup_editor(self, field):
        # Reuse editor if its possible (not when data_type is an object, since
        # that requires changing the reference values)
        if (self._editor and field.data_type is not object and
                self._editor.data_type == field.data_type):
            self._editor.set_field(field)
            return

        if self._editor:
            self.editor_placeholder.remove(self._editor)

        other_fields = self._filter_fields(field.data_type)
        klass = self._editors[field.data_type]
        self._editor = klass(self._store, field, other_fields)
        self.editor_placeholder.add(self._editor)

    def _setup_widgets(self):
        label = Gtk.Label(label=_('Update'))
        self.pack_start(label, False, False, 0)
        self.field_combo = ProxyComboBox()
        self.field_combo.connect('changed', self._on_field_combo__changed)
        self.pack_start(self.field_combo, False, False, 0)
        self.editor_placeholder = Gtk.EventBox()
        self.pack_start(self.editor_placeholder, False, False, 0)
        self.apply_button = Gtk.Button(stock=Gtk.STOCK_APPLY)
        self.apply_button.connect('clicked', self._on_apply_button__clicked)
        self.pack_start(self.apply_button, False, False, 0)

        for field in self._fields:
            # Don't let the user edit unique fields for now
            if field.unique or field.read_only:
                continue
            self.field_combo.append_item(field.label, field)
        self.field_combo.select_item_by_position(0)

    def _apply(self):
        marker('Updating values')
        for i in self._results:
            self._editor.apply_operation(i)
            self._results.refresh(i)
        marker('Done updating values')

    #
    # Public API
    #

    def get_changed_objects(self):
        """Returns a set of all the changed objects"""
        objs = set()
        for field in self._fields:
            objs.update(field.new_values.keys())
        return objs

    #
    # BaseEditorSlave
    #

    def confirm(self, dialog):
        marker('Saving data')

        objs = self.get_changed_objects()
        total = len(objs)
        for i, obj in enumerate(objs):
            for field in self._fields:
                field.save_value(obj)
                yield i, total
            # Flush soon, so that any errors triggered by database constraints
            # pop up.
            self._store.flush()

        marker('Done saving data')

    #
    #   Callbacks
    #

    def _on_field_combo__changed(self, combo):
        self._setup_editor(combo.get_selected())

    def _on_apply_button__clicked(self, button):
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class DateSearchFilter(SearchFilter):
    """
    A filter which helps you to search by a date interval.
    Can be customized through add_option.
    """
    __gtype_name__ = 'DateSearchFilter'
    class Type(enum):
        (USER_DAY,
         USER_INTERVAL) = range(100, 102)

    def __init__(self, label=''):
        """
        Create a new DateSearchFilter object.
        @param label: name of the search filter
        """
        self._options = {}
        SearchFilter.__init__(self, label=label)
        self.title_label = gtk.Label(label)
        self.pack_start(self.title_label, False, False)
        self.title_label.show()

        self.mode = ProxyComboBox()
        self.mode.connect(
            'content-changed',
            self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)
        self.mode.show()

        self.from_label = gtk.Label(_("From:"))
        self.pack_start(self.from_label, False, False)
        self.from_label.show()

        self.start_date = ProxyDateEntry()
        self._start_changed_id = self.start_date.connect(
            'content-changed', self._on_start_date__changed)
        self.pack_start(self.start_date, False, False, 6)
        self.start_date.show()

        self.to_label = gtk.Label(_("To:"))
        self.pack_start(self.to_label, False, False)
        self.to_label.show()

        self.end_date = ProxyDateEntry()
        self._end_changed_id = self.end_date.connect(
            'content-changed', self._on_end_date__changed)
        self.pack_start(self.end_date, False, False, 6)
        self.end_date.show()

        self.add_custom_options()

        for option in (Any, Today, Yesterday, LastWeek, LastMonth):
            self.add_option(option)

        self.mode.select_item_by_position(0)

    #
    # SearchFilter
    #

    def get_state(self):
        start = self.start_date.get_date()
        end = self.end_date.get_date()
        if start == end:
            return DateQueryState(filter=self, date=start)
        return DateIntervalQueryState(filter=self, start=start, end=end)

    def get_title_label(self):
        return self.title_label

    def get_mode_combo(self):
        return self.mode

    def get_description(self):
        desc = ''
        start_date = self.start_date.get_date()
        end_date = self.end_date.get_date()
        if start_date:
            if end_date and start_date != end_date:
                desc += ' %s %s %s %s' % (_(u'from'), start_date.strftime('%x'),
                                          _(u'to'), end_date.strftime('%x'),)

            else:
                 desc += start_date.strftime('%x')
        if desc:
            return '%s %s' % (self.get_title_label().get_text(), desc,)

    #
    # Public API
    #

    def clear_options(self):
        """
        Removes all previously added options
        """
        self._options = {}
        self.mode.clear()

    def add_option(self, option_type, position=-2):
        """
        Adds a date option
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class StringSearchFilter(SearchFilter):
    """
    - a label
    - an entry
    @ivar entry: the entry
    @ivar label: the label
    """
    def __init__(self, label, chars=0):
        """
        Create a new StringSearchFilter object.
        @param label: label of the search filter
        @param chars: maximum number of chars used by the search entry
        """
        SearchFilter.__init__(self, label=label)
        self.title_label = gtk.Label(label)
        self.pack_start(self.title_label, False, False)
        self.title_label.show()

        self._options = {}
        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)

        self.entry = gtk.Entry()
        self.entry.connect('activate', self._on_entry__activate)
        if chars:
            self.entry.set_width_chars(chars)
        self.pack_start(self.entry, False, False, 6)
        self.entry.show()

        for option in (Contains, DoesNotContain):
            self._add_option(option)
        self.mode.select_item_by_position(0)

    def _add_option(self, option_type, position=-2):
        option = option_type()
        num = len(self.mode) + position
        self.mode.insert_item(num, option.name, option_type)
        self._options[option_type] = option

    #
    # Callbacks
    #

    def _on_mode__content_changed(self, combo):
        self.emit('changed')

    def _on_entry__activate(self, entry):
        self.emit('changed')

    #
    # SearchFilter
    #

    def get_state(self):
        option = self.mode.get_selected_data()
        return StringQueryState(filter=self,
                                text=self.entry.get_text(),
                                mode=option.mode)

    def get_title_label(self):
        return self.title_label

    def get_mode_combo(self):
        return self.mode

    def get_description(self):
        desc = self.entry.get_text()
        if desc:
            mode = self.mode.get_selected_label()
            return '%s %s "%s"' % (self.title_label.get_text(), mode, desc,)

    #
    # Public API
    #

    def enable_advaced(self):
        self.mode.show()

    def set_label(self, label):
        self.title_label.set_text(label)

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class TestComboBox(unittest.TestCase):
    def setUp(self):
        self.combo = ProxyComboBox()

    def _prefill(self):
        self.combo.prefill((('Johan', 1981),
                            ('Lorenzo', 1979),
                            ('Christian', 1976)))

    def testPrefill(self):
        self.combo.prefill(('foo', 'bar'))
        model = self.combo.get_model()
        self.assertEqual(tuple(model[0]), ('foo', None))
        self.assertEqual(tuple(model[1]), ('bar', None))

    def testPrefillWithData(self):
        self.combo.prefill((('foo', 42), ('bar', 138)))
        model = self.combo.get_model()
        self.assertEqual(tuple(model[0]), ('foo', 42))
        self.assertEqual(tuple(model[1]), ('bar', 138))
        self.combo.prefill([])
        self.assertEqual(len(self.combo.get_model()), 0)
        self.assertEqual(len(model), 0)
        self.assertEqual(len(self.combo), 0)

    def testSelectItemByPosition(self):
        self._prefill()
        self.combo.select_item_by_position(1)
        model = self.combo.get_model()
        iter = self.combo.get_active_iter()
        self.assertEqual(model.get_value(iter, 0), 'Lorenzo')
        self.assertEqual(model.get_value(iter, 1), 1979)
        self.assertRaises(KeyError, self.combo.select_item_by_label, 4)

    def testSelectItemByLabel(self):
        self._prefill()
        self.combo.select_item_by_label('Christian')
        model = self.combo.get_model()
        iter = self.combo.get_active_iter()
        rowNo = model.get_path(iter)[0]
        self.assertEqual(rowNo, 2)
        self.assertRaises(KeyError, self.combo.select_item_by_label, 'Salgado')

    def testSelectByData(self):
        self._prefill()
        self.combo.select_item_by_data(1976)
        model = self.combo.get_model()
        iter = self.combo.get_active_iter()
        rowNo = model.get_path(iter)[0]
        self.assertEqual(rowNo, 2)
        self.assertEqual(model.get_value(iter, 0), 'Christian')
        self.assertEqual(model.get_value(iter, 1), 1976)
        self.assertRaises(KeyError, self.combo.select_item_by_data, 1980)

    def testGetSelectedData(self):
        self._prefill()
        self.combo.select_item_by_position(0)
        self.assertEqual(self.combo.get_selected_data(), 1981)
        self.assertRaises(TypeError,
                          self.combo.select_item_by_position, 'foobar')

    def testGetSelectedLabel(self):
        self._prefill()

    def testClear(self):
        self._prefill()
        self.combo.clear()
        self.assertEqual(map(list, self.combo.get_model()), [])

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class StringSearchFilter(SearchFilter):
    """
    Contains:

      - a label
      - an entry

    :ivar entry: the entry
    :ivar label: the label
    """
    def __init__(self, label, chars=0, container=None):
        """
        Create a new StringSearchFilter object.
        :param label: label of the search filter
        :param chars: maximum number of chars used by the search entry
        """
        self._container = container
        SearchFilter.__init__(self, label=label)
        self.title_label = gtk.Label(label)
        self.pack_start(self.title_label, False, False)
        self.title_label.show()

        self._options = {}
        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)

        self.entry = HintedEntry()
        self.entry.set_hint(_("Search"))
        self.entry.show_hint()
        self.entry.props.secondary_icon_sensitive = False
        data = environ.get_resource_string('stoq', 'pixmaps',
                                           'stoq-funnel-16x16.png')
        image = pixbuf_from_string(data)
        self.entry.set_icon_from_pixbuf(gtk.ENTRY_ICON_PRIMARY,
                                        image)
        self.entry.set_icon_tooltip_text(gtk.ENTRY_ICON_PRIMARY,
                                         _("Add a filter"))
        self.entry.set_icon_from_stock(gtk.ENTRY_ICON_SECONDARY,
                                       gtk.STOCK_CLEAR)
        self.entry.set_icon_tooltip_text(gtk.ENTRY_ICON_SECONDARY,
                                         _("Clear the search"))
        self.entry.connect("icon-release", self._on_entry__icon_release)
        self.entry.connect('activate', self._on_entry__activate)
        self.entry.connect('changed', self._on_entry__changed)
        if chars:
            self.entry.set_width_chars(chars)
        self.pack_start(self.entry, False, False, 6)
        self.entry.show()

        for option in (ContainsAll, ContainsExactly, DoesNotContain):
            self._add_option(option)
        self.mode.select_item_by_position(0)

    def _add_option(self, option_type, position=-2):
        option = option_type()
        num = abs(position)
        self.mode.insert_item(num, option.name, option_type)
        self._options[option_type] = option

    #
    # Callbacks
    #

    def _on_mode__content_changed(self, combo):
        self.emit('changed')

    def _on_entry__activate(self, entry):
        self.emit('changed')

    def _on_entry__changed(self, entry):
        entry.props.secondary_icon_sensitive = bool(entry.get_text())

    def _position_filter_menu(self, data):
        window = self.entry.get_icon_window(gtk.ENTRY_ICON_PRIMARY)
        x, y = window.get_origin()
        y += window.get_size()[1]
        border = self.entry.style_get_property('progress-border')
        if border is not None:
            y += border.bottom
        return (x, y, True)

    def _on_entry__icon_release(self, entry, icon_pos, event):
        if icon_pos == gtk.ENTRY_ICON_SECONDARY:
            entry.set_text("")
            entry.grab_focus()
            self.emit('changed')
        elif icon_pos == gtk.ENTRY_ICON_PRIMARY:
            # We don't need create popup filters if haven't search columns.
            if (not self._container or not hasattr(self._container, 'menu') or
                not self._container.menu):
                return
            self._container.menu.popup(None, None,
                                       self._position_filter_menu, 0, event.time)

    #
    # SearchFilter
    #

    def get_state(self):
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class ComboSearchFilter(SearchFilter):
    """
    - a label
    - a combo with a set of predefined item to select from
    """
    __gtype_name__ = 'ComboSearchFilter'

    def __init__(self, label='', values=None):
        """
        Create a new ComboSearchFilter object.
        :param label: label of the search filter
        :param values: items to put in the combo, see
            :class:`kiwi.ui.widgets.combo.ProxyComboBox.prefill`
        """
        self._block_updates = False
        SearchFilter.__init__(self, label=label)
        label = gtk.Label(label)
        self.pack_start(label, False, False)
        label.show()
        self.title_label = label

        # We create the mode, but it will only be added to this box when
        # enable_advanced is called
        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        for option in (ComboEquals, ComboDifferent):
            self.add_option(option)
        self.mode.select_item_by_position(0)

        self.combo = ProxyComboBox()
        if values:
            self.update_values(values)
        self.combo.connect('content-changed', self._on_combo__content_changed)
        self.pack_start(self.combo, False, False, 6)
        self.combo.show()

    #
    # SearchFilter
    #

    def get_state(self):
        value = self.combo.get_selected_data()
        mode = self.mode.get_selected_data()
        state = NumberQueryState(filter=self, value=value, mode=mode.mode)
        if hasattr(value, 'id'):
            state.value_id = value.id
        return state

    def set_state(self, value, value_id=None, mode=None):
        if mode is None:
            mode = NumberQueryState.EQUALS
        if value_id is not None:
            for item in self.combo.get_model_items().values():
                if item is None:
                    continue
                if item.id == value_id:
                    value = item
                    break
        self.select(value)

    def update_values(self, values):
        self._block_updates = True
        self.combo.prefill(values)
        self._block_updates = False

    def get_title_label(self):
        return self.title_label

    def get_mode_combo(self):
        return self.combo

    def get_description(self):
        desc = ''
        data = self.combo.get_selected_data()
        if data is not None:
            desc += self.combo.get_selected_label()
            return '%s %s' % (self.title_label.get_text(), desc,)

    #
    # Public API
    #

    def add_option(self, option_type, position=0):
        """
        Adds an option
        :param option_type: option to add
        :type option_type: a :class:`ComboSearchOption` subclass
        """
        option = option_type()
        num = len(self.mode) + position
        self.mode.insert_item(num, option.name, option_type)

    def select(self, data):
        """
        selects an item in the combo
        :param data: what to select
        """
        self.combo.select(data)

    def enable_advanced(self):
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class StringSearchFilter(SearchFilter):
    """
    Contains:

      - a label
      - an entry

    :ivar entry: the entry
    :ivar label: the label
    """

    __gtype_name__ = 'StringSearchFilter'

    def __init__(self, label, chars=0, container=None):
        """
        Create a new StringSearchFilter object.
        :param label: label of the search filter
        :param chars: maximum number of chars used by the search entry
        """
        self._container = container
        SearchFilter.__init__(self, label=label)
        self.title_label = Gtk.Label(label=label)
        self.pack_start(self.title_label, False, False, 0)
        self.title_label.show()

        self._options = {}
        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)

        self.entry = Gtk.Entry()
        self.entry.set_placeholder_text(_("Search"))
        self.entry.props.secondary_icon_sensitive = False
        self.entry.set_icon_from_icon_name(Gtk.EntryIconPosition.PRIMARY,
                                           'fa-filter-symbolic')
        self.entry.set_icon_tooltip_text(Gtk.EntryIconPosition.PRIMARY,
                                         _("Add a filter"))
        self.entry.set_icon_from_icon_name(Gtk.EntryIconPosition.SECONDARY,
                                           'edit-clear-symbolic')
        self.entry.set_icon_tooltip_text(Gtk.EntryIconPosition.SECONDARY,
                                         _("Clear the search"))
        self.entry.connect("icon-release", self._on_entry__icon_release)
        self.entry.connect('activate', self._on_entry__activate)
        self.entry.connect('changed', self._on_entry__changed)
        if chars:
            self.entry.set_width_chars(chars)
        self.pack_start(self.entry, False, False, 6)
        self.entry.show()

        # Default filter will be only contains all. When advanced filter is enabled it will add
        # other options
        self._add_option(ContainsAll)
        self.mode.select_item_by_position(0)

    def _add_option(self, option_type):
        option = option_type()
        self.mode.append_item(option.name, option_type)
        self._options[option_type] = option

    #
    # Callbacks
    #

    def _on_mode__content_changed(self, combo):
        self.emit('changed')

    def _on_entry__activate(self, entry):
        self.emit('changed')

    def _on_entry__changed(self, entry):
        entry.props.secondary_icon_sensitive = bool(entry.get_text())

    def _position_filter_menu(self, data):
        window = self.entry.get_icon_window(Gtk.EntryIconPosition.PRIMARY)
        x, y = window.get_origin()
        y += window.get_size()[1]
        border = self.entry.style_get_property('progress-border')
        if border is not None:
            y += border.bottom
        return (x, y, True)

    def _on_entry__icon_release(self, entry, icon_pos, event):
        if icon_pos == Gtk.EntryIconPosition.SECONDARY:
            entry.set_text("")
            entry.grab_focus()
            self.emit('changed')
        elif icon_pos == Gtk.EntryIconPosition.PRIMARY:
            # We don't need create popup filters if haven't search columns.
            if (not self._container or not hasattr(self._container, 'menu') or
                    not self._container.menu):
                return
            self._container.menu.popup(None, None, None,
                                       self._position_filter_menu, 0, event.time)

    #
    # SearchFilter
    #

    def get_state(self):
        option = self.mode.get_selected_data()
#.........这里部分代码省略.........

# 需要导入模块: from kiwi.ui.widgets.combo import ProxyComboBox [as 别名]
# 或者: from kiwi.ui.widgets.combo.ProxyComboBox import select_item_by_position [as 别名]
class NumberSearchFilter(SearchFilter):
    """
    A filter which helps you to search by a number interval.
    """
    __gtype_name__ = 'NumberSearchFilter'

    def __init__(self, label=''):
        """
        @param label: name of the search filter
        """

        self._options = {}

        SearchFilter.__init__(self, label=label)
        self.title_label = gtk.Label(label)
        self.title_label.set_alignment(1.0, 0.5)
        self.pack_start(self.title_label, False, False)
        self.title_label.show()

        self.mode = ProxyComboBox()
        self.mode.connect('content-changed', self._on_mode__content_changed)
        self.pack_start(self.mode, False, False, 6)
        self.mode.show()

        self.start = gtk.SpinButton(climb_rate=1.0)
        self.start.get_adjustment().step_increment = 1.0
        self.start.set_range(-sys.maxint-1, sys.maxint)
        self.pack_start(self.start, False, False, 6)
        self.start.show()

        self.and_label = gtk.Label(_("And"))
        self.pack_start(self.and_label, False, False)
        self.and_label.show()

        self.end = gtk.SpinButton(climb_rate=1.0)
        self.end.get_adjustment().step_increment = 1.0
        self.end.set_range(-sys.maxint-1, sys.maxint)
        self.pack_start(self.end, False, False, 6)
        self.end.show()

        for option in (LowerThan, EqualsTo, GreaterThan, Between):
            self.add_option(option)

        self.mode.select_item_by_position(0)

    #
    #   Private
    #

    def _update_visibility(self):
        option = self.mode.get_selected_data()
        numbers = option.numbers
        if numbers == 0:
            self.start.hide()
            self.and_label.hide()
            self.end.hide()
        elif numbers == 1:
            self.start.show()
            self.and_label.hide()
            self.end.hide()
        elif numbers == 2:
            self.start.show()
            self.and_label.show()
            self.end.show()


    #
    #   Callbacks
    #

    def _on_mode__content_changed(self, combo):
        self._update_visibility()

    #
    #   SearchFilter
    #

    def get_state(self):
        start_value = self.start.get_value_as_int()
        end_value = self.end.get_value_as_int()
        option = self.mode.get_selected_data()

        start, end = option().get_interval(start_value, end_value)
        return NumberIntervalQueryState(filter=self, start=start, end=end)

    def get_title_label(self):
        return self.title_label

    def get_mode_combo(self):
        return self.mode


    #
    #   Public API
    #

    def add_option(self, option_type, position=-2):
        """
        Adds a date option
        @param option_type: option to add
#.........这里部分代码省略.........