diff -r 6482875b0d97 -r 171da01bd04d QTfrontend/util/FileEngine.h
--- a/QTfrontend/util/FileEngine.h	Fri Nov 30 18:19:52 2012 +0400
+++ b/QTfrontend/util/FileEngine.h	Tue Dec 04 09:15:55 2012 +0400
@@ -22,6 +22,7 @@
         virtual bool flush();
         virtual qint64 size() const;
         virtual qint64 pos() const;
+        virtual bool setSize(qint64 size);
         virtual bool seek(qint64 pos);
         virtual bool isSequential() const;
         virtual bool remove();
@@ -55,6 +56,7 @@
         QString m_fileName;
         QDateTime m_date;
         bool m_bufferSet;
+        bool m_readWrite;
 };
 
 class FileEngineHandler : public QAbstractFileEngineHandler