[ocrfeeder] Fix image preview

[Joaquim Rocha <jrocha src gnome org>]

commit 668fbc1a3092b7fa87bfabfbf3fb9437f90f4e47
Author: scx <scx mail gmail com>
Date:   Sun Jan 27 16:23:29 2019 +0100

    Fix image preview

 src/ocrfeeder/studio/widgetModeler.py | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/ocrfeeder/studio/widgetModeler.py b/src/ocrfeeder/studio/widgetModeler.py
index d2b0f1b..22d1cbd 100644
--- a/src/ocrfeeder/studio/widgetModeler.py
+++ b/src/ocrfeeder/studio/widgetModeler.py
@@ -250,6 +250,9 @@ class ImageReviewer(Gtk.Paned):
             debug(exception.message)
             return
         self.selectable_boxes_area.setBackgroundImage(self.path_to_image)
+        self.editor.updateImage(self.image_pixbuf)
+        if self.editor.box:
+            self.editor.update(self.editor.box)
 
     def updateBoxesColors(self):
         self.editor.updateBoxColor()
@@ -1045,6 +1048,9 @@ class Editor:
         self.__connectDataBoxSignals()
         self.__updateBoxColor(None, self.data_box.type)
 
+    def updateImage(self, pixbuf):
+        self.pixbuf = pixbuf
+
     def __connectDataBoxSignals(self):
         handler_id = self.data_box.connect('changed_x', self.__updateEditorX)
         self.__connected_signal_handles_list.append(handler_id)