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

# $Id$

"""
Source View
"""

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

#-------------------------------------------------------------------------
#
# gramps modules
#
#-------------------------------------------------------------------------
import gen.lib
import Config
import PageView
import DisplayModels
import Utils
import Bookmarks
import Errors
from DdTargets import DdTargets
from Editors import EditSource, DelSrcQuery
from Filters.SideBar import SourceSidebarFilter

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


#-------------------------------------------------------------------------
#
# SourceView
#
#-------------------------------------------------------------------------
class SourceView(PageView.ListView):

    COLUMN_NAMES = [
        _('Title'),
        _('ID'),
        _('Author'),
        _('Abbreviation'),
        _('Publication Information'),
        _('Last Changed'),
        ]
    
    ADD_MSG = _("Add a new source")
    EDIT_MSG = _("Edit the selected source")
    DEL_MSG = _("Delete the selected source")
    FILTER_TYPE = "Source"

    def __init__(self, dbstate, uistate):

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

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

        PageView.ListView.__init__(
            self, _('Sources'), dbstate, uistate, 
            SourceView.COLUMN_NAMES, len(SourceView.COLUMN_NAMES), 
            DisplayModels.SourceModel, signal_map,
            dbstate.db.get_source_bookmarks(),
            Bookmarks.SourceBookmarks, multiple=True,
            filter_class=SourceSidebarFilter)

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

    def get_bookmarks(self):
        return self.dbstate.db.get_source_bookmarks()

    def drag_info(self):
        return DdTargets.SOURCE_LINK
    
    def define_actions(self):
        PageView.ListView.define_actions(self)
        self._add_action('ColumnEdit', gtk.STOCK_PROPERTIES,
                         _('_Column Editor'), callback=self._column_editor)
        self._add_action('FastMerge', None, _('_Merge'),
                         callback=self.fast_merge)
        self._add_action('FilterEdit', None, _('Source Filter Editor'),
                         callback=self.filter_editor,)

    def _column_editor(self, obj):
        import ColumnOrder

        ColumnOrder.ColumnOrder(
            _('Select Source Columns'),
            self.uistate,
            self.dbstate.db.get_source_column_order(),
            SourceView.COLUMN_NAMES,
            self.set_column_order)

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

    def column_order(self):
        return self.dbstate.db.get_source_column_order()

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

    def ui_definition(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="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"/>
            </placeholder>
          </toolbar>
          <popup name="Popup">
            <menuitem action="Add"/>
            <menuitem action="Edit"/>
            <menuitem action="Remove"/>
          </popup>
        </ui>'''

    def add(self, obj):
        EditSource(self.dbstate, self.uistate, [], gen.lib.Source())

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

    def remove_object_from_handle(self, handle):
        the_lists = Utils.get_source_referents(handle, self.dbstate.db)
        object = self.dbstate.db.get_source_from_handle(handle)
        query = DelSrcQuery(self.dbstate, self.uistate, object, the_lists)
        is_used = any(the_lists)
        return (query, is_used, object)

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

        for handle in mlist:
            source = self.dbstate.db.get_source_from_handle(handle)
            try:
                EditSource(self.dbstate, self.uistate, [], source)
            except Errors.WindowActiveError:
                pass

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

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