Refactor make_filter to make more reusable

svn: r15782

src/gui/makefilter.py

@@ -0,0 +1,41 @@
+import time
+import Filters 
+from gui.filtereditor import EditFilter
+import const
+from Filters import reload_custom_filters
+from gen.ggettext import sgettext as _
+
+def make_filter(dbstate, uistate, objclass, gramps_ids, title=None):
+    """
+    Makes a Gramps Filter through dialog from a enumeration (list,
+    set, etc.) of gramps_ids of type objclass.
+
+    >>> make_filter(dbstate, uistate, 'Person', ['I0003', ...])
+    """
+    FilterClass = Filters.GenericFilterFactory(objclass)
+    rule = getattr(getattr(Filters.Rules, objclass),'RegExpIdOf')
+    filter = FilterClass()
+    if title is None:
+        title = _("Filter %s from Clipboard") % objclass
+    if callable(title):
+        title = title()
+    filter.set_name(title)
+    struct_time = time.localtime()
+    filter.set_comment( _("Created on %4d/%02d/%02d") % 
+        (struct_time.tm_year, struct_time.tm_mon, struct_time.tm_mday))
+    re = "|".join(["^%s$" % gid for gid in sorted(gramps_ids)])
+    filter.add_rule(rule([re]))
+    filterdb = Filters.FilterList(const.CUSTOM_FILTERS)
+    filterdb.load()
+    EditFilter(objclass, dbstate, uistate, [],
+               filter, filterdb,
+               lambda : edit_filter_save(uistate, filterdb, objclass))
+
+def edit_filter_save(uistate, filterdb, objclass):
+    """
+    If a filter changed, save them all. Reloads, and also calls callback.
+    """
+    filterdb.save()
+    reload_custom_filters()
+    uistate.emit('filters-changed', (objclass,))
+