# HG changeset patch
# User Chris Cannam
# Date 1242316087 0
# Node ID 7065e921f122d96d3ba91f98c1f5c26a6797ce5b
# Parent  063da8955f65d476399187c5b02e29bc28e0596e
* add reviewFileForAppend callback

diff -r 063da8955f65 -r 7065e921f122 transform/FileFeatureWriter.cpp
--- a/transform/FileFeatureWriter.cpp	Thu May 14 15:47:16 2009 +0000
+++ b/transform/FileFeatureWriter.cpp	Thu May 14 15:48:07 2009 +0000
@@ -231,6 +231,11 @@
         cerr << "FileFeatureWriter: NOTE: Using output filename \""
              << filename.toStdString() << "\"" << endl;
 
+        if (m_append) {
+            cerr << "FileFeatureWriter: NOTE: Calling reviewFileForAppending" << endl;
+            reviewFileForAppending(filename);
+        }
+        
         QFile *file = new QFile(filename);
         QIODevice::OpenMode mode = (QIODevice::WriteOnly);
         if (m_append) mode |= QIODevice::Append;
diff -r 063da8955f65 -r 7065e921f122 transform/FileFeatureWriter.h
--- a/transform/FileFeatureWriter.h	Thu May 14 15:47:16 2009 +0000
+++ b/transform/FileFeatureWriter.h	Thu May 14 15:48:07 2009 +0000
@@ -64,6 +64,9 @@
 
     QString getOutputFilename(QString, TransformId);
     QFile *getOutputFile(QString, TransformId);
+    
+    // subclass can implement this to be called before file is opened for append
+    virtual void reviewFileForAppending(QString filename) { }
 
     int m_support;
     QString m_extension;