# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2001-2006  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
#

# $Id$

"""
Source View
"""

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

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

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

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

column_names = [
    _('Title'),
    _('ID'),
    _('Author'),
    _('Abbreviation'),
    _('Publication Information'),
    _('Last Changed'),
    ]

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

    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.build_tree,
            }

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

        PageView.ListView.__init__(
            self, _('Sources'), dbstate, uistate, column_names,
            len(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(),
            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 on_double_click(self, obj, event):
        handle = self.first_selected()
        source = self.dbstate.db.get_source_from_handle(handle)
        try:
            EditSource(self.dbstate, self.uistate, [], source)
        except Errors.WindowActiveError:
            pass

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

    def remove(self, obj):
        for source_handle in self.selected_handles():
            db = self.dbstate.db
            the_lists = Utils.get_source_referents(source_handle, db)

            source = db.get_source_from_handle(source_handle)

            ans = DelSrcQuery(self.dbstate,self.uistate,source,the_lists)

            if filter(None, the_lists): # quick test for non-emptiness
                msg = _('This source is currently being used. Deleting it '
                        'will remove it from the database and from all '
                        'people and families that reference it.')
            else:
                msg = _('Deleting source will remove it from the database.')
            
            msg = "%s %s" % (msg, Utils.data_recover_msg)
            descr = source.get_title()
            if descr == "":
                descr = source.get_gramps_id()
                
            self.uistate.set_busy_cursor(1)
            QuestionDialog(_('Delete %s?') % descr, msg,
                           _('_Delete Source'), 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:
            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