+ Make transient directory of the form ExeName_Doc_{UUID}_{HASH}_{PID}

+ Set some properties in Document read-only

+ Implement Document::saveAs

+ Fix PropertyUUID::setValue()

+ Add a field for UUID in document information panel

src/App/Application.cpp

@@ -421,6 +421,23 @@ Document* Application::openDocument(const char * FileName)
     // read the document
     newDoc->restore();
 
+    // make sure that the uuid is unique
+    //FIXME: See Document::saveAs()
+#if 0
+    std::string uuid = newDoc->Uid.getValueStr();
+    for (std::map<std::string,Document*>::iterator it = DocMap.begin(); it != DocMap.end(); ++it) {
+        if (newDoc != it->second) {
+            if (uuid == it->second->Uid.getValueStr()) {
+                Base::Uuid id;
+                newDoc->Uid.setValue(id);
+                Base::Console().Warning("Document with the UUID '%s' already exists, change to '%s'\n",
+                                        uuid.c_str(), id.getValue().c_str());
+                break;
+            }
+        }
+    }
+#endif
+
     return newDoc;
 }