# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2001-2007  Donald N. Allingham
#
# 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; either version 2 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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

# $Id$

"""
Provides the event view
"""

__author__ = "Don Allingham"
__revision__ = "$Revision$"

#-------------------------------------------------------------------------
#
# gramps modules
#
#-------------------------------------------------------------------------
import RelLib
import PageView
import DisplayModels
import Utils
import Errors
import Bookmarks
import Config
from DdTargets import DdTargets
from QuestionDialog import QuestionDialog
from Editors import EditEvent, DelEventQuery
from Filters.SideBar import EventSidebarFilter

#-------------------------------------------------------------------------
#
# internationalization
#
#-------------------------------------------------------------------------
from gettext import gettext as _

column_names = [
    _('Description'),
    _('ID'),
    _('Type'),
    _('Date'),
    _('Place'),
    _('Last Changed'),
    ]

#-------------------------------------------------------------------------
#
# EventView
#
#-------------------------------------------------------------------------
class EventView(PageView.ListView):
    """
    EventView class, derived from the ListView
    """

    ADD_MSG     = _("Add a new event")
    EDIT_MSG    = _("Edit the selected event")
    DEL_MSG     = _("Delete the selected event")
    FILTER_TYPE = "Event"

    def __init__(self, dbstate, uistate):
        """
        Create the Event View
        """

        signal_map = {
            'event-add'     : self.row_add,
            'event-update'  : self.row_update,
            'event-delete'  : self.row_delete,
            'event-rebuild' : self.build_tree,
            }

        self.func_list = {
            '<CONTROL>J' : self.jump,
            '<CONTROL>BackSpace' : self.key_delete,
            }

        PageView.ListView.__init__(
            self, _('Events'), dbstate, uistate,
            column_names, len(column_names), DisplayModels.EventModel,
            signal_map, dbstate.db.get_event_bookmarks(),
            Bookmarks.EventBookmarks, filter_class=EventSidebarFilter)

        Config.client.notify_add("/apps/gramps/interface/filter",
                                 self.filter_toggle)

    def get_bookmarks(self):
        """
        Returns the bookmark object
        """
        return self.dbstate.db.get_event_bookmarks()

    def drag_info(self):
        """
        Indicates that the drag type is an EVENT
        """
        return DdTargets.EVENT

    def column_order(self):
        """
        returns a tuple indicating the column order
        """
        return self.dbstate.db.get_event_column_order()

    def get_stock(self):
        """
        Use the gramps-event stock icon
        """
        return 'gramps-event'

    def ui_definition(self):
        """
        Defines the UI string for UIManager
        """
        return '''<ui>
          <menubar name="MenuBar">
            <menu action="BookMenu">
              <placeholder name="AddEditBook">
                <menuitem action="AddBook"/>
                <menuitem action="EditBook"/>
              </placeholder>
            </menu>
            <menu action="FileMenu">
              <placeholder name="LocalExport">
                <menuitem action="ExportTab"/>
              </placeholder>
            </menu>
            <menu action="EditMenu">
              <placeholder name="CommonEdit">
                <menuitem action="Add"/>
                <menuitem action="Edit"/>
                <menuitem action="Remove"/>
              </placeholder>
              <menuitem action="ColumnEdit"/>
              <menuitem action="FilterEdit"/>
            </menu>
          </menubar>
          <toolbar name="ToolBar">
            <placeholder name="CommonEdit">
              <toolitem action="Add"/>
              <toolitem action="Edit"/>
              <toolitem action="Remove"/>
            </placeholder>
          </toolbar>
          <popup name="Popup">
            <menuitem action="Add"/>
            <menuitem action="Edit"/>
            <menuitem action="Remove"/>
          </popup>
        </ui>'''

    def define_actions(self):
        PageView.ListView.define_actions(self)
        self.add_action('FilterEdit', None, _('Event Filter Editor'),
                        callback=self.filter_editor,)

    def get_handle_from_gramps_id(self, gid):
        obj = self.dbstate.db.get_event_from_gramps_id(gid)
        if obj:
            return obj.get_handle()
        else:
            return None

    def column_editor(self, obj):
        """
        returns a tuple indicating the column order
        """
        import ColumnOrder

        ColumnOrder.ColumnOrder(
            _('Select Event Columns'),
            self.uistate,
            self.dbstate.db.get_event_column_order(),
            column_names,
            self.set_column_order)

    def set_column_order(self, clist):
        self.dbstate.db.set_event_column_order(clist)
        self.build_columns()

    def on_double_click(self, obj, event):
        handle = self.first_selected()
        the_event = self.dbstate.db.get_event_from_handle(handle)
        try:
            EditEvent(self.dbstate, self.uistate, [], the_event)
        except Errors.WindowActiveError:
            pass

    def add(self, obj):
        try:
            EditEvent(self.dbstate, self.uistate, [], RelLib.Event())
        except Errors.WindowActiveError:
            pass

    def remove(self, obj):
        for ehandle in self.selected_handles():
            db = self.dbstate.db
            person_list = [
                item[1] for item in
                self.dbstate.db.find_backlink_handles(ehandle,['Person']) ]

            family_list = [ 
                item[1] for item in
                self.dbstate.db.find_backlink_handles(ehandle,['Family']) ]
            
            event = db.get_event_from_handle(ehandle)

            ans = DelEventQuery(self.dbstate,self.uistate,
                                event,person_list,family_list)

            if len(person_list) + len(family_list) > 0:
                msg = _('This event is currently being used. Deleting it '
                        'will remove it from the database and from all '
                        'people and families that reference it.')
            else:
                msg = _('Deleting event will remove it from the database.')
            
            msg = "%s %s" % (msg, Utils.data_recover_msg)
            descr = event.get_description()
            if descr == "":
                descr = event.get_gramps_id()
                
            self.uistate.set_busy_cursor(1)
            QuestionDialog(_('Delete %s?') % descr, msg,
                           _('_Delete Event'), ans.query_response)
            self.uistate.set_busy_cursor(0)

    def edit(self, obj):
        mlist = []
        self.selection.selected_foreach(self.blist, mlist)

        for handle in mlist:
            event = self.dbstate.db.get_event_from_handle(handle)
            try:
                EditEvent(self.dbstate, self.uistate, [], event)
            except Errors.WindowActiveError:
                pass