Refactoring the report system. Decouple MenuOptions from the code that displays them. (Book Report is broken and needs to be fixed.)

svn: r9875

src/plugins/CalculateEstimatedDates.py

@@ -2,6 +2,7 @@
 # Gramps - a GTK+/GNOME based genealogy program
 #
 # Copyright (C) 2007  Donald N. Allingham
+# Copyright (C) 2008  Brian Matherly
 #
 # 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
@@ -37,11 +38,12 @@ import time
 #------------------------------------------------------------------------
 from PluginUtils import Tool, register_tool, PluginWindows, \
     MenuToolOptions, BooleanOption, PersonFilterOption, StringOption, \
-    NumberOption
+    NumberOption, PersonOption
 import gen.lib
 import Config
 from BasicUtils import name_displayer
 import Errors
+from ReportBase import ReportUtils
 
 #------------------------------------------------------------------------
 #
@@ -52,12 +54,21 @@ class CalcEstDateOptions(MenuToolOptions):
     """ Calculate Estimated Date options  """
     
     def add_menu_options(self, menu, dbstate):
+        self.__db = dbstate.get_database()
+        
         """ Adds the options """
         category_name = _("Options")
-
-        filter = PersonFilterOption(_("Filter"), dbstate, 0, False)
-        filter.set_help(_("Select filter to restrict people"))
-        menu.add_option(category_name,"filter", filter)
+        
+        self.__pid = PersonOption(_("Filter Person"))
+        self.__pid.set_help(_("The center person for the filter"))
+        menu.add_option(category_name, "pid", self.__pid)
+        self.__pid.connect('value-changed', self.__update_filters)
+        
+        self.__filter = PersonFilterOption(_("Filter"), 0)
+        self.__filter.set_help(_("Select filter to restrict people"))
+        self.__update_filters()
+        menu.add_option(category_name, "filter", self.__filter)
+        self.__filter.connect('value-changed', self.__filter_changed)
 
         source_text = StringOption(_("Source text"), 
                                    _("Calculated Date Estimates"))
@@ -105,6 +116,28 @@ class CalcEstDateOptions(MenuToolOptions):
                            0, 200)
         num.set_help(_("Average years between two generations"))
         menu.add_option(category_name, "AVG_GENERATION_GAP", num)
+        
+    def __update_filters(self):
+        """
+        Update the filter list based on the selected person
+        """
+        gid = self.__pid.get_value()
+        person = self.__db.get_person_from_gramps_id(gid)
+        filter_list = ReportUtils.get_person_filters(person, False)
+        self.__filter.set_filters(filter_list)
+        
+    def __filter_changed(self):
+        """
+        Handle filter change. If the filter is not specific to a person,
+        disable the person option
+        """
+        filter_value = self.__filter.get_value()
+        if filter_value in [1, 2, 3, 4]:
+            # Filters 0, 2, 3, 4 and 5 rely on the center person
+            self.__pid.set_available(True)
+        else:
+            # The rest don't
+            self.__pid.set_available(False)
 
 
 class CalcToolManagedWindow(PluginWindows.ToolManagedWindowBatch):