Fix the error 'Corrupt JPEG data: premature end of data segment'

bzr-revno: 1307

openlp/core/lib/__init__.py

@@ -239,7 +239,8 @@ def resize_image(image, width, height, background=QtCore.Qt.black):
     Resize an image to fit on the current screen.
 
     ``image``
-        The image to resize.
+        The image to resize. It has to be either a ``QImage`` instance or the
+        path to the image.
 
     ``width``
         The new image width.

openlp/core/lib/imagemanager.py

@@ -85,8 +85,7 @@ class ImageManager(QtCore.QObject):
         for key in self._cache.keys():
             image = self._cache[key]
             image.dirty = True
-            image.image = resize_image(image.path,
-                self.width, self.height)
+            image.image = resize_image(image.path, self.width, self.height)
         self._cache_dirty = True
         # only one thread please
         if not self._thread_running:
@@ -128,8 +127,7 @@ class ImageManager(QtCore.QObject):
             image = Image()
             image.name = name
             image.path = path
-            image.image = resize_image(path,
-                self.width, self.height)
+            image.image = resize_image(path, self.width, self.height)
             self._cache[name] = image
         else:
             log.debug(u'Image in cache %s:%s' % (name, path))

openlp/core/ui/thememanager.py

@@ -529,6 +529,18 @@ class ThemeManager(QtGui.QWidget):
                         else:
                             outfile = open(fullpath, u'wb')
                             outfile.write(zip.read(file))
+        except (IOError, NameError):
+            critical_error_message_box(
+                translate('OpenLP.ThemeManager', 'Validation Error'),
+                translate('OpenLP.ThemeManager', 'File is not a valid theme.'))
+            log.exception(u'Importing theme from zip failed %s' % filename)
+        finally:
+            # Close the files, to be able to continue creating the theme.
+            if zip:
+                zip.close()
+            if outfile:
+                outfile.close()
+            # As all files are closed, we can create the Theme.
             if filexml:
                 theme = self._createThemeFromXml(filexml, self.path)
                 self.generateAndSaveImage(dir, themename, theme)
@@ -539,17 +551,6 @@ class ThemeManager(QtGui.QWidget):
                     'File is not a valid theme.'))
                 log.exception(u'Theme file does not contain XML data %s' %
                     filename)
-        except (IOError, NameError):
-            critical_error_message_box(
-                translate('OpenLP.ThemeManager', 'Validation Error'),
-                translate('OpenLP.ThemeManager',
-                'File is not a valid theme.'))
-            log.exception(u'Importing theme from zip failed %s' % filename)
-        finally:
-            if zip:
-                zip.close()
-            if outfile:
-                outfile.close()
 
     def checkIfThemeExists(self, themeName):
         """