Committed a great patch which adds a Save A Copy menu function. This is the first gloss of this patch...I will add more stuff to it shortly...

(bzr r1628)

2 files changed, 8 insertions, 3 deletions

diff --git a/src/extension/output.cpp b/src/extension/output.cpp
index eb3f85ed8..b0f254a9c 100644
--- a/src/extension/output.cpp
+++ b/src/extension/output.cpp
@@ -221,7 +221,7 @@ Output::save (SPDocument * doc, const gchar * uri)
 
         gboolean saved = sp_document_get_undo_sensitive(doc);
 	sp_document_set_undo_sensitive (doc, FALSE);
-	repr->setAttribute("inkscape:output_extension", NULL);
+	//repr->setAttribute("inkscape:output_extension", NULL);
 	repr->setAttribute("inkscape:dataloss", NULL);
 	if (repr->attribute("sodipodi:modified") != NULL)
 		modified = true;
@@ -239,7 +239,7 @@ Output::save (SPDocument * doc, const gchar * uri)
 
         saved = sp_document_get_undo_sensitive(doc);
 	sp_document_set_undo_sensitive (doc, FALSE);
-	repr->setAttribute("inkscape:output_extension", get_id());
+	//repr->setAttribute("inkscape:output_extension", get_id());
 	if (dataloss) {
 		repr->setAttribute("inkscape:dataloss", "true");
 	}
diff --git a/src/extension/system.cpp b/src/extension/system.cpp
index 81bf3075e..3a8a54214 100644
--- a/src/extension/system.cpp
+++ b/src/extension/system.cpp
@@ -244,10 +244,15 @@ save(Extension *key, SPDocument *doc, gchar const *filename, bool setextension,
         throw Output::no_overwrite();
     }
 
+    // if 'official' save the filename and extension for future saves.
     if (official) {
+        // save the filename for next use
         sp_document_set_uri(doc, fileName);
+        // also save the extension for next use
+        Inkscape::XML::Node *repr = sp_document_repr_root(doc);
+        repr->setAttribute("inkscape:output_extension", omod->get_id());
     }
-
+    
     omod->save(doc, fileName);
 
     g_free(fileName);