From f5a9f9ed89bf205b7b2bccea9e6af25156721860 Mon Sep 17 00:00:00 2001
From: Tim Bentley <tim.bentley@gmail.com>
Date: Mon, 5 Apr 2010 09:13:45 +0100
Subject: [PATCH] Update Image thumbnail if original has changed

---
 openlp/core/lib/mediamanageritem.py    | 19 +++++++++++++++++++
 openlp/plugins/images/lib/mediaitem.py |  7 +++----
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/openlp/core/lib/mediamanageritem.py b/openlp/core/lib/mediamanageritem.py
index f678bed7a..6ed2775f1 100644
--- a/openlp/core/lib/mediamanageritem.py
+++ b/openlp/core/lib/mediamanageritem.py
@@ -352,6 +352,25 @@ class MediaManagerItem(QtGui.QWidget):
             count += 1
         return filelist
 
+    def validate(self, file, thumb):
+        """
+        Validates to see if the file still exists or
+        thumbnail is up to date
+        """
+        filedate = os.stat(file).st_mtime
+        thumbdate = os.stat(thumb).st_mtime
+        #if file updated rebuild icon
+        if filedate > thumbdate:
+            print "rebuild"
+            self.icon_from_file(file, thumb)
+
+    def icon_from_file(self, file, thumb):
+        icon = build_icon(unicode(file))
+        pixmap = icon.pixmap(QtCore.QSize(88,50))
+        ext = os.path.splitext(thumb)[1].lower()
+        pixmap.save(thumb, ext[1:])
+        return icon
+
     def loadList(self, list):
         raise NotImplementedError(u'MediaManagerItem.loadList needs to be '
             u'defined by the plugin')
diff --git a/openlp/plugins/images/lib/mediaitem.py b/openlp/plugins/images/lib/mediaitem.py
index becf2be9f..072b4924e 100644
--- a/openlp/plugins/images/lib/mediaitem.py
+++ b/openlp/plugins/images/lib/mediaitem.py
@@ -121,15 +121,14 @@ class ImageMediaItem(MediaManagerItem):
 
     def loadList(self, list):
         for file in list:
+            print file
             (path, filename) = os.path.split(unicode(file))
             thumb = os.path.join(self.servicePath, filename)
             if os.path.exists(thumb):
+                self.validate(file, thumb)
                 icon = build_icon(thumb)
             else:
-                icon = build_icon(unicode(file))
-                pixmap = icon.pixmap(QtCore.QSize(88,50))
-                ext = os.path.splitext(thumb)[1].lower()
-                pixmap.save(thumb, ext[1:])
+                icon = self.icon_from_file(file, thumb)
             item_name = QtGui.QListWidgetItem(filename)
             item_name.setIcon(icon)
             item_name.setData(QtCore.Qt.UserRole, QtCore.QVariant(file))