# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2001-2006  Donald N. Allingham
# Copyright (C) 2008       Gary Burton
# Copyright (C) 2010       Nick Hall
#
# 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
#

# $Id$

"""
Base view for Place Views
"""

#-------------------------------------------------------------------------
#
# Global modules
#
#-------------------------------------------------------------------------


#-------------------------------------------------------------------------
#
# GTK/Gnome modules
#
#-------------------------------------------------------------------------
import gtk

#-------------------------------------------------------------------------
#
# gramps modules
#
#-------------------------------------------------------------------------
import gen.lib
from gui.views.listview import ListView
from gui.utils import add_menuitem
import Errors
import Bookmarks
import config
from QuestionDialog import ErrorDialog
from gui.pluginmanager import GuiPluginManager
from DdTargets import DdTargets
from gui.editors import EditPlace, DeletePlaceQuery
from Filters.SideBar import PlaceSidebarFilter
from gen.plug import CATEGORY_QR_PLACE

#-------------------------------------------------------------------------
#
# internationalization
#
#-------------------------------------------------------------------------
from gen.ggettext import gettext as _


#-------------------------------------------------------------------------
#
# PlaceBaseView
#
#-------------------------------------------------------------------------
class PlaceBaseView(ListView):
    """ base view class for place views, be they flat list or tree
    """
    COL_NAME = 0
    COL_ID = 1
    COL_STREET = 2
    COL_LOCALITY = 3
    COL_CITY = 4
    COL_COUNTY = 5
    COL_STATE = 6
    COL_COUNTRY = 7
    COL_ZIP = 8
    COL_PARISH = 9
    COL_LAT = 10
    COL_LON = 11
    COL_CHAN = 12
    # name of the columns
    COLUMN_NAMES = [
        _('Place Name'),
        _('ID'),
        _('Street'),
        _('Locality'),
        _('City'),
        _('County'),
        _('State'),
        _('Country'),
        _('ZIP/Postal Code'),
        _('Church Parish'),
        _('Latitude'),
        _('Longitude'),
        _('Last Changed'),
        ]
    # columns that contain markup
    MARKUP_COLS = [COL_NAME]
    # default setting with visible columns, order of the col, and their size
    CONFIGSETTINGS = (
        ('columns.visible', [COL_NAME, COL_ID, COL_STREET, COL_LOCALITY,
                             COL_CITY, COL_COUNTY, COL_STATE]),
        ('columns.rank', [COL_NAME, COL_ID, COL_STREET, COL_LOCALITY, COL_CITY,
                           COL_COUNTY, COL_STATE, COL_COUNTRY, COL_ZIP,
                           COL_PARISH, COL_LAT, COL_LON, COL_CHAN]),
        ('columns.size', [250, 75, 150, 150, 150, 150, 100, 100, 100, 
                             100, 150, 150, 100])
        )    
    ADD_MSG     = _("Add a new place")
    EDIT_MSG    = _("Edit the selected place")
    DEL_MSG     = _("Delete the selected place")
    FILTER_TYPE = "Place"
    QR_CATEGORY = CATEGORY_QR_PLACE

    def __init__(self, pdata, dbstate, uistate, title, model, nav_group,
                 markup=None):

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

        self.mapservice = config.get('interface.mapservice')
        self.mapservicedata = {}

        ListView.__init__(
            self, title, pdata, dbstate, uistate,
            self.COLUMN_NAMES, 14, 
            model, signal_map,
            dbstate.db.get_place_bookmarks(),
            Bookmarks.PlaceBookmarks, nav_group,
            multiple=True,
            filter_class=PlaceSidebarFilter, markup=markup)

        self.func_list.update({
            '<CONTROL>J' : self.jump,
            '<CONTROL>BackSpace' : self.key_delete,
            })

        self.additional_uis.append(self.additional_ui())

    def navigation_type(self):
        return 'Place'
    
    def get_bookmarks(self):
        return self.dbstate.db.get_place_bookmarks()

    def define_actions(self):
        ListView.define_actions(self)
        self._add_toolmenu_action('MapsList', _('Loading...'),
                        _("Attempt to see selected locations with a Map "
                                "Service (OpenstreetMap, Google Maps, ...)"),
                        self.gotomap,
                        _('Select a Map Service'))
        self._add_action('GotoMap', gtk.STOCK_JUMP_TO, 
                        _('_Look up with Map Service'),
                        callback=self.gotomap,
                        tip=_("Attempt to see this location with a Map "
                                "Service (OpenstreetMap, Google Maps, ...)"))
        self._add_action('FilterEdit', None, _('Place Filter Editor'),
                         callback=self.filter_editor)
        self._add_action('QuickReport', None, _("Quick View"), None, None, None)
        self._add_action('Dummy', None, '  ', None, None, self.dummy_report)

    def change_page(self):
        """
        Called by viewmanager at end of realization when arriving on the page
        At this point the Toolbar is created. We need to:
          1. get the menutoolbutton
          2. add all possible map services in the drop down menu
          3. add the actions that correspond to clicking in this drop down menu
          4. set icon and label of the menutoolbutton now that it is realized
          5. store label so it can be changed when selection changes
        """
        ListView.change_page(self)
        #menutoolbutton actions are stored in PageView class, 
        # obtain the widgets where we need to add to menu
        actionservices = self.action_toolmenu['MapsList']
        widgets = actionservices.get_proxies()
        mmenu = self.__create_maps_menu_actions()

        if not self.mapservicedata:
            return

        self.mapslistlabel = []
        if not self.mapservice in self.mapservicedata: 
            #stored val no longer exists, use the first key instead
            self.set_mapservice(self.mapservicedata.keys()[0])

        #store all gtk labels to be able to update label on selection change
        for widget in widgets :
            if isinstance(widget, gtk.MenuToolButton):
                widget.set_menu(mmenu)
                if gtk.pygtk_version >= (2, 12, 0):
                    widget.set_arrow_tooltip_text(actionservices.arrowtooltip)
                lbl = gtk.Label(self.mapservice_label())
                lbl.show()
                self.mapslistlabel.append(lbl)
                widget.set_label_widget(self.mapslistlabel[-1])
                widget.set_stock_id(gtk.STOCK_JUMP_TO)
        if self.drag_info():
            self.list.enable_model_drag_source(gtk.gdk.BUTTON1_MASK,
              [('text/plain', 0, 0), self.drag_info().target()],
              gtk.gdk.ACTION_COPY)

    def __create_maps_menu_actions(self):
        """
        Function creating a menu and actions that are used as dropdown menu
        from the menutoolbutton
        """
        menu = gtk.Menu()
        
        #select the map services to show
        self.mapservicedata = {}
        servlist = GuiPluginManager.get_instance().get_reg_mapservices()
        for i, pdata in enumerate(servlist):
            key = pdata.id.replace(' ', '-')
            add_menuitem(menu, pdata.name, None, 
                               make_callback(self.set_mapservice, key))
            self.mapservicedata[key] = pdata

        return menu

    def set_mapservice(self, mapkey):
        """
        change the service that runs on click of the menutoolbutton
        used as callback menu on menu clicks
        """
        self.mapservice = mapkey
        for label in self.mapslistlabel:
            label.set_label(self.mapservice_label())
            label.show()
        config.set('interface.mapservice', mapkey)
        config.save()
    
    def mapservice_label(self):
        """
        return the current label for the menutoolbutton
        """
        return self.mapservicedata[self.mapservice].name

    def gotomap(self, obj):
        """
        Run the map service 
        """
        #First test if any map service is available
        if not len(self.mapservicedata):
            msg = _("No map service is available.")
            msg2 = _("Check your installation.")
            ErrorDialog(msg, msg2)
            return
        
        place_handles = self.selected_handles()
        try:
            place_handle = self.selected_handles()[0]
        except IndexError:
            msg = _("No place selected.")
            msg2 = _("You need to select a place to be able to view it"
                     " on a map. Some Map Services might support multiple"
                     " selections.")
            ErrorDialog(msg, msg2)
            return
        
        #TODO: support for descriptions in some cases. For now, pass None
        #TODO: Later this might be 'Birth of William' ....
        places = [(x, None) for x in place_handles]
        
        #run the mapservice:
        pmgr = GuiPluginManager.get_instance()
        serv = self.mapservicedata[self.mapservice]
        mod = pmgr.load_plugin(serv)
        if mod:
            servfunc = eval('mod.' +  serv.mapservice)
            servfunc()(self.dbstate.db, places)
        else:
            print 'Failed to load map plugin, see Plugin Manager'

    def drag_info(self):
        return DdTargets.PLACE_LINK

    def get_stock(self):
        return 'gramps-place'

    def additional_ui(self):
        return '''<ui>
          <menubar name="MenuBar">
            <menu action="FileMenu">
              <placeholder name="LocalExport">
                <menuitem action="ExportTab"/>
              </placeholder>
            </menu>
            <menu action="BookMenu">
              <placeholder name="AddEditBook">
                <menuitem action="AddBook"/>
                <menuitem action="EditBook"/>
              </placeholder>
            </menu>
            <menu action="GoMenu">
              <placeholder name="CommonGo">
                <menuitem action="Back"/>
                <menuitem action="Forward"/>
                <separator/>
              </placeholder>
            </menu>
            <menu action="EditMenu">
              <placeholder name="CommonEdit">
                <menuitem action="Add"/>
                <menuitem action="Edit"/>
                <menuitem action="Remove"/>
                <menuitem action="Merge"/>
              </placeholder>
              <menuitem action="FilterEdit"/>
            </menu>
          </menubar>
          <toolbar name="ToolBar">
            <placeholder name="CommonNavigation">
              <toolitem action="Back"/>  
              <toolitem action="Forward"/>  
            </placeholder>
            <placeholder name="CommonEdit">
              <toolitem action="Add"/>
              <toolitem action="Edit"/>
              <toolitem action="Remove"/>
              <toolitem action="Merge"/>
              <separator/>
              <toolitem action="MapsList"/>
            </placeholder>
          </toolbar>
          <popup name="Popup">
            <menuitem action="Back"/>
            <menuitem action="Forward"/>
            <separator/>
            <menuitem action="Add"/>
            <menuitem action="Edit"/>
            <menuitem action="Remove"/>
            <menuitem action="Merge"/>
            <separator/>
            <menu name="QuickReport" action="QuickReport">
              <menuitem action="Dummy"/>
            </menu>
            <separator/>
            <menuitem action="GotoMap"/>
          </popup>
        </ui>'''

    def dummy_report(self, obj):
        """ For the xml UI definition of popup to work, the submenu 
            Quick Report must have an entry in the xml
            As this submenu will be dynamically built, we offer a dummy action
        """
        pass

    def add(self, obj):
        try:
            EditPlace(self.dbstate, self.uistate, [], gen.lib.Place())
        except Errors.WindowActiveError:
            pass

    def remove(self, obj):
        self.remove_selected_objects()

    def remove_object_from_handle(self, handle):
        person_list = [
            item[1] for item in
            self.dbstate.db.find_backlink_handles(handle,['Person'])]

        family_list = [
            item[1] for item in
            self.dbstate.db.find_backlink_handles(handle,['Family'])]
        
        event_list = [
            item[1] for item in
            self.dbstate.db.find_backlink_handles(handle,['Event'])]
        
        object = self.dbstate.db.get_place_from_handle(handle)
        query = DeletePlaceQuery(self.dbstate, self.uistate, object,
                                 person_list, family_list, event_list)

        is_used = len(person_list) + len(family_list) + len(event_list) > 0
        return (query, is_used, object)

    def edit(self, obj):
        for handle in self.selected_handles():
            place = self.dbstate.db.get_place_from_handle(handle)
            try:
                EditPlace(self.dbstate, self.uistate, [], place)
            except Errors.WindowActiveError:
                pass

    def merge(self, obj):
        """
        Merge the selected places.
        """
        mlist = self.selected_handles()
        
        if len(mlist) != 2:
            msg = _("Cannot merge places.")
            msg2 = _("Exactly two places must be selected to perform a merge. "
                     "A second place can be selected by holding down the "
                     "control key while clicking on the desired place.")
            ErrorDialog(msg, msg2)
        else:
            import Merge
            Merge.MergePlaces(self.dbstate, self.uistate, mlist[0], mlist[1])

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

    def get_default_gramplets(self):
        """
        Define the default gramplets for the sidebar and bottombar.
        """
        return (("Place Filter Gramplet",),
                ("Place Gallery Gramplet",
                 "Place Sources Gramplet",
                 "Place Notes Gramplet"))

def make_callback(func, val):
    return lambda x: func(val)