1 files changed, 5 insertions, 5 deletions
diff --git a/src/dotgroupcollaboration.h b/src/dotgroupcollaboration.h
index 3d83673..7353be9 100644
--- a/src/dotgroupcollaboration.h
+++ b/src/dotgroupcollaboration.h
@@ -16,19 +16,19 @@
 #ifndef DOTGROUPCOLLABORATION_H
 #define DOTGROUPCOLLABORATION_H
 
-#include <iostream>
-
 #include "dotnode.h"
 #include "dotgraph.h"
 #include "groupdef.h"
 
+class TextStream;
+
 /** Representation of a group collaboration graph */
 class DotGroupCollaboration : public DotGraph
 {
   public :
     DotGroupCollaboration(const GroupDef* gd);
    ~DotGroupCollaboration();
-    QCString writeGraph(std::ostream &t, GraphOutputFormat gf,EmbeddedOutputFormat ef,
+    QCString writeGraph(TextStream &t, GraphOutputFormat gf,EmbeddedOutputFormat ef,
                         const char *path,const char *fileName,const char *relPath,
                         bool writeImageMap=TRUE,int graphId=-1);
     bool isTrivial() const;
@@ -67,13 +67,13 @@ class DotGroupCollaboration : public DotGraph
       EdgeType eType;
 
       std::vector<Link> links;
-      void write( std::ostream &t ) const;
+      void write( TextStream &t ) const;
     };
 
     void buildGraph(const GroupDef* gd);
     void addCollaborationMember(const Definition* def, QCString& url, EdgeType eType );
     void addMemberList( class MemberList* ml );
-    void writeGraphHeader(std::ostream &t,const QCString &title) const;
+    void writeGraphHeader(TextStream &t,const QCString &title) const;
     Edge* addEdge( DotNode* _pNStart, DotNode* _pNEnd, EdgeType _eType,
         const QCString& _label, const QCString& _url );