# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2009       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
#

# $Id$

"""
Place Tree View
"""

#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
from gui.views.placebaseview import PlaceBaseView
from gui.views.treemodels import PlaceTreeModel
import gen.lib
import Errors
from Editors import EditPlace

#-------------------------------------------------------------------------
#
# Internationalization
#
#-------------------------------------------------------------------------
from gettext import gettext as _

#-------------------------------------------------------------------------
#
# PlaceTreeView
#
#-------------------------------------------------------------------------
class PlaceTreeView(PlaceBaseView):
    """
    A hierarchical view of the top three levels of places.
    """

    def __init__(self, dbstate, uistate):
        PlaceBaseView.__init__(self, dbstate, uistate,
                                                _('Tree'), PlaceTreeModel)

    def get_viewtype_stock(self):
        """
        Override the default icon.  Set for hierarchical view.
        """
        return 'gramps-tree-group'
        
    def define_actions(self):
        """
        Define actions for the popup menu specific to the tree view.
        """
        PlaceBaseView.define_actions(self)
        
        self._add_action('OpenBranch', None, _("Expand Rows"),
                         callback=self.open_branch)
        self._add_action('CloseBranch', None, _("Collapse Rows"),
                         callback=self.close_branch)
        self._add_action('OpenAllNodes', None, _("Expand all Nodes"),
                         callback=self.open_all_nodes)
        self._add_action('CloseAllNodes', None, _("Collapse all Nodes"),
                         callback=self.close_all_nodes)

    def ui_definition(self):
        """
        A user interface definition including tree specific actions.
        """
        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="EditMenu">
              <placeholder name="CommonEdit">
                <menuitem action="Add"/>
                <menuitem action="Edit"/>
                <menuitem action="Remove"/>
              </placeholder>
              <menuitem action="ColumnEdit"/>
              <menuitem action="FilterEdit"/>
              <placeholder name="Merge">
                <menuitem action="FastMerge"/>
              </placeholder>
            </menu>
          </menubar>
          <toolbar name="ToolBar">
            <placeholder name="CommonEdit">
              <toolitem action="Add"/>
              <toolitem action="Edit"/>
              <toolitem action="Remove"/>
              <separator/>
              <toolitem action="MapsList"/>
            </placeholder>
          </toolbar>
          <popup name="Popup">
            <menuitem action="OpenBranch"/>
            <menuitem action="CloseBranch"/>
            <menuitem action="OpenAllNodes"/>
            <menuitem action="CloseAllNodes"/>
            <separator/>
            <menuitem action="Add"/>
            <menuitem action="Edit"/>
            <menuitem action="Remove"/>
            <separator/>
            <menuitem action="GotoMap"/>
          </popup>
        </ui>'''

    def add(self, obj):
        """
        Add a new place.  Attempt to get the top three levels of hierarchy from
        the currently selected row.
        """
        place = gen.lib.Place()
        
        model, pathlist = self.selection.get_selected_rows()
        level1 = level2 = level3 = u""
        if len(pathlist) == 1:
            path = pathlist[0]
            if len(path) == 1:
                level1 = model.on_get_iter(path)[0]
            elif len(path) == 2:
                level2 = model.on_get_iter(path)[0]
                level1 = model.on_get_iter(path)[1]
            elif len(path) == 3:
                node = model.on_get_iter(path)
                level3 = node[0]
                level2 = node[1]
                level1 = model.on_iter_parent(node)[1]
            else:
                node = model.on_iter_parent(model.on_get_iter(path))
                level3 = node[0]
                level2 = node[1]
                level1 = model.on_iter_parent(node)[1]

        try:
            place.get_main_location().set_country(level1)
            place.get_main_location().set_state(level2)
            place.get_main_location().set_county(level3)
            EditPlace(self.dbstate, self.uistate, [], place)
        except Errors.WindowActiveError:
            pass

    def open_branch(self, obj):
        """
        Expand the selected branches and all children.
        """
        self.uistate.status_text(_("Updating display..."))
        self.uistate.set_busy_cursor(True)
        
        selected = self.selection.get_selected_rows()
        for path in selected[1]:
            self.list.expand_row(path, True)

        self.uistate.set_busy_cursor(False)
        self.uistate.modify_statusbar(self.dbstate)
        
    def close_branch(self, obj):
        """
        Collapse the selected branches.
        """
        selected = self.selection.get_selected_rows()
        for path in selected[1]:
            self.list.collapse_row(path)
        
    def open_all_nodes(self, obj):
        """
        Expand the entire tree.
        """
        self.uistate.status_text(_("Updating display..."))
        self.uistate.set_busy_cursor(True)

        self.list.expand_all()

        self.uistate.set_busy_cursor(False)
        self.uistate.modify_statusbar(self.dbstate)

    def close_all_nodes(self, obj):
        """
        Collapse the entire tree.
        """
        self.list.collapse_all()