1 files changed, 7 insertions, 7 deletions
diff --git a/src/rtfgen.cpp b/src/rtfgen.cpp
index 37e2ddd..753d133 100644
--- a/src/rtfgen.cpp
+++ b/src/rtfgen.cpp
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * 
+ * $Id$
  *
  * Copyright (C) 1997-2007 by Parker Waechter & Dimitri van Heesch.
  *
@@ -1724,7 +1724,7 @@ void RTFGenerator::startClassDiagram()
   DBG_RTF(t <<"{\\comment startClassDiagram }" << endl)
 }
 
-void RTFGenerator::endClassDiagram(ClassDiagram &d,
+void RTFGenerator::endClassDiagram(const ClassDiagram &d,
     const char *fileName,const char *)
 {
   newParagraph();
@@ -2228,7 +2228,7 @@ void RTFGenerator::startDotGraph()
   DBG_RTF(t << "{\\comment (startDotGraph)}"    << endl)
 }
 
-void RTFGenerator::endDotGraph(DotClassGraph &g)
+void RTFGenerator::endDotGraph(const DotClassGraph &g)
 {
   newParagraph();
 
@@ -2251,7 +2251,7 @@ void RTFGenerator::startInclDepGraph()
   DBG_RTF(t << "{\\comment (startInclDepGraph)}"    << endl)
 }
 
-void RTFGenerator::endInclDepGraph(DotInclDepGraph &g)
+void RTFGenerator::endInclDepGraph(const DotInclDepGraph &g)
 {
   newParagraph();
 
@@ -2272,7 +2272,7 @@ void RTFGenerator::startGroupCollaboration()
 {
 }
 
-void RTFGenerator::endGroupCollaboration(DotGroupCollaboration &)
+void RTFGenerator::endGroupCollaboration(const DotGroupCollaboration &)
 {
 }
 
@@ -2281,7 +2281,7 @@ void RTFGenerator::startCallGraph()
   DBG_RTF(t << "{\\comment (startCallGraph)}"    << endl)
 }
 
-void RTFGenerator::endCallGraph(DotCallGraph &g)
+void RTFGenerator::endCallGraph(const DotCallGraph &g)
 {
   newParagraph();
 
@@ -2303,7 +2303,7 @@ void RTFGenerator::startDirDepGraph()
   DBG_RTF(t << "{\\comment (startDirDepGraph)}"    << endl)
 }
 
-void RTFGenerator::endDirDepGraph(DotDirDeps &g)
+void RTFGenerator::endDirDepGraph(const DotDirDeps &g)
 {
   newParagraph();