From aecd3ee17f5fd22a6d9180644a7341ae26b9d2cf Mon Sep 17 00:00:00 2001
From: Mika Fischer <fischer@videmo.de>
Date: Wed, 15 Jun 2011 11:48:37 +0200
Subject: [PATCH] Always have a valid model in LabelTool

---
 sloth/core/labeltool.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sloth/core/labeltool.py b/sloth/core/labeltool.py
index 47fdb11..e880c88 100755
--- a/sloth/core/labeltool.py
+++ b/sloth/core/labeltool.py
@@ -65,7 +65,7 @@ class LabelTool(QObject):
         self.container_factory_ = None
         self.container_ = AnnotationContainer()
         self._current_image = None
-        self._model = None
+        self._model = AnnotationModel([])
 
     def main_help_text(self):
         """
@@ -234,8 +234,7 @@ class LabelTool(QObject):
         return success
 
     def clearAnnotations(self):
-        self.container_.clear()
-        self._model = AnnotationModel(self.container_.annotations())
+        self._model = AnnotationModel([])
         #self._model.setBasedir("")
         self.statusMessage.emit('')
         self.annotationsLoaded.emit()