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lib/python/multifilebuilder.py

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+# -*- python -*-
+#    Copyright (C) 2014 Jeff Epler <jepler@unpythonic.net>
+#
+#    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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+from gi.repository import Gtk
+
+__all__ = ['MultiFileBuilder']
+
+class MultiFileBuilder:
+    def __init__(self):
+        self.builders = []
+        self.domain = None
+
+    def set_translation_domain(self, domain):
+        self.domain = domain
+
+    def connect_signals(self, obj):
+        for b in self.builders: b.connect_signals(obj)
+
+    def add_from_file(self, fn):
+        builder = Gtk.Builder()
+        if self.domain is not None: builder.set_translation_domain(self.domain)
+
+        self.builders.append(builder)
+        builder.add_from_file(fn)
+
+    def add_from_string(self, strg):
+        builder = Gtk.Builder()
+        if self.domain is not None: builder.set_translation_domain(self.domain)
+
+        self.builders.append(builder)
+        builder.add_from_string(strg)
+
+    def get_object(self, obj):
+        objects = [builder.get_object(obj) for builder in self.builders]
+        objects = [o for o in objects if o]
+        if not objects: return None
+        if len(objects) > 1: raise ValueError("""Use of object with duplicate ID -> '%s'"""% obj)
+        return objects[0]
+
+