From 1f5b044c713e7e3fd6913ae36e8382808d59a722 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 26 Oct 2004 10:26:43 +0000
Subject: [PATCH] Made ReaderWriter::className const

---
 include/osgDB/ReaderWriter                       | 2 +-
 src/osgPlugins/3dc/ReaderWriter3DC.cpp           | 2 +-
 src/osgPlugins/Inventor/ReaderWriterIV.h         | 2 +-
 src/osgPlugins/ac3d/ac3d.cpp                     | 2 +-
 src/osgPlugins/bmp/ReaderWriterBMP.cpp           | 2 +-
 src/osgPlugins/dds/ReaderWriterDDS.cpp           | 2 +-
 src/osgPlugins/directx/ReaderWriterDirectX.cpp   | 2 +-
 src/osgPlugins/dw/ReaderWriterDW.cpp             | 2 +-
 src/osgPlugins/flt/ReaderWriterATTR.cpp          | 2 +-
 src/osgPlugins/flt/ReaderWriterFLT.h             | 2 +-
 src/osgPlugins/freetype/ReaderWriterFreeType.cpp | 2 +-
 src/osgPlugins/gdal/ReaderWriterGDAL.cpp         | 2 +-
 src/osgPlugins/geo/ReaderWriterGEO.cpp           | 2 +-
 src/osgPlugins/gif/ReaderWriterGIF.cpp           | 2 +-
 src/osgPlugins/ive/ReaderWriterIVE.cpp           | 2 +-
 src/osgPlugins/jp2/ReaderWriterJP2.cpp           | 2 +-
 src/osgPlugins/jpeg/ReaderWriterJPEG.cpp         | 2 +-
 src/osgPlugins/lib3ds/ReaderWriter3DS.cpp        | 2 +-
 src/osgPlugins/logo/ReaderWriterLOGO.cpp         | 2 +-
 src/osgPlugins/lwo/ReaderWriterLWO.cpp           | 2 +-
 src/osgPlugins/lws/ReaderWriterLWS.cpp           | 2 +-
 src/osgPlugins/md2/ReaderWriterMD2.cpp           | 2 +-
 src/osgPlugins/mpeg/ReaderWriterMPEG.cpp         | 2 +-
 src/osgPlugins/net/ReaderWriterNET.cpp           | 2 +-
 src/osgPlugins/obj/ReaderWriterOBJ.cpp           | 2 +-
 src/osgPlugins/osg/ReaderWriterOSG.cpp           | 2 +-
 src/osgPlugins/osgtgz/ReaderWriterOSGTGZ.cpp     | 2 +-
 src/osgPlugins/pfb/ReaderWriterPFB.cpp           | 2 +-
 src/osgPlugins/pic/ReaderWriterPIC.cpp           | 2 +-
 src/osgPlugins/png/ReaderWriterPNG.cpp           | 2 +-
 src/osgPlugins/pnm/ReaderWriterPNM.cpp           | 2 +-
 src/osgPlugins/quicktime/ReaderWriterQT.cpp      | 2 +-
 src/osgPlugins/rgb/ReaderWriterRGB.cpp           | 2 +-
 src/osgPlugins/rot/ReaderWriterROT.cpp           | 2 +-
 src/osgPlugins/scale/ReaderWriterSCALE.cpp       | 2 +-
 src/osgPlugins/tga/ReaderWriterTGA.cpp           | 2 +-
 src/osgPlugins/tgz/ReaderWriterTGZ.cpp           | 2 +-
 src/osgPlugins/tiff/ReaderWriterTIFF.cpp         | 2 +-
 src/osgPlugins/trans/ReaderWriterTRANS.cpp       | 2 +-
 src/osgPlugins/txp/ReaderWriterTXP.h             | 2 +-
 src/osgPlugins/zip/ReaderWriterZIP.cpp           | 2 +-
 41 files changed, 41 insertions(+), 41 deletions(-)

diff --git a/include/osgDB/ReaderWriter b/include/osgDB/ReaderWriter
index 80525f532..36102545b 100644
--- a/include/osgDB/ReaderWriter
+++ b/include/osgDB/ReaderWriter
@@ -32,7 +32,7 @@ class OSGDB_EXPORT ReaderWriter : public osg::Referenced
 {
     public:
         virtual ~ReaderWriter(); // {}
-        virtual const char* className() = 0;
+        virtual const char* className() const = 0;
         virtual bool acceptsExtension(const std::string& /*extension*/) { return false; }
 
         /** Options base class used for passing options into plugins to control their operation.*/
diff --git a/src/osgPlugins/3dc/ReaderWriter3DC.cpp b/src/osgPlugins/3dc/ReaderWriter3DC.cpp
index b19d005f6..14a6a87e8 100644
--- a/src/osgPlugins/3dc/ReaderWriter3DC.cpp
+++ b/src/osgPlugins/3dc/ReaderWriter3DC.cpp
@@ -15,7 +15,7 @@ using namespace osg;
 class ReaderWriter3DC : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "3DC point cloud reader"; }
+        virtual const char* className() const { return "3DC point cloud reader"; }
         
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/Inventor/ReaderWriterIV.h b/src/osgPlugins/Inventor/ReaderWriterIV.h
index 096d27fcb..bb708441a 100644
--- a/src/osgPlugins/Inventor/ReaderWriterIV.h
+++ b/src/osgPlugins/Inventor/ReaderWriterIV.h
@@ -9,7 +9,7 @@ class ReaderWriterIV : public osgDB::ReaderWriter
     public:
         ReaderWriterIV();
         
-        virtual const char* className()
+        virtual const char* className() const
         { 
             return "Inventor Reader"; 
         }
diff --git a/src/osgPlugins/ac3d/ac3d.cpp b/src/osgPlugins/ac3d/ac3d.cpp
index d74306b9a..caaf7bd17 100644
--- a/src/osgPlugins/ac3d/ac3d.cpp
+++ b/src/osgPlugins/ac3d/ac3d.cpp
@@ -70,7 +70,7 @@ class geodeVisitor : public osg::NodeVisitor { // collects geodes from scene sub
 class ReaderWriterAC : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "AC3D Database Reader"; }
+        virtual const char* className() const { return "AC3D Database Reader"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/bmp/ReaderWriterBMP.cpp b/src/osgPlugins/bmp/ReaderWriterBMP.cpp
index 7ef6247f2..b42e6b2f0 100644
--- a/src/osgPlugins/bmp/ReaderWriterBMP.cpp
+++ b/src/osgPlugins/bmp/ReaderWriterBMP.cpp
@@ -316,7 +316,7 @@ int *numComponents_ret)
 class ReaderWriterBMP : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "BMP Image Reader"; }
+        virtual const char* className() const { return "BMP Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension) { return osgDB::equalCaseInsensitive(extension,"bmp"); }
 
         virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options*)
diff --git a/src/osgPlugins/dds/ReaderWriterDDS.cpp b/src/osgPlugins/dds/ReaderWriterDDS.cpp
index 44c75f458..f14a1f910 100644
--- a/src/osgPlugins/dds/ReaderWriterDDS.cpp
+++ b/src/osgPlugins/dds/ReaderWriterDDS.cpp
@@ -702,7 +702,7 @@ bool WriteDDSFile(const osg::Image *img, const char *filename)
 class ReaderWriterDDS : public osgDB::ReaderWriter
 {
 public:
-    virtual const char* className()
+    virtual const char* className() const
     { 
         return "DDS Image Reader/Writer"; 
     }
diff --git a/src/osgPlugins/directx/ReaderWriterDirectX.cpp b/src/osgPlugins/directx/ReaderWriterDirectX.cpp
index ef30c5ef1..6a55e8c5a 100644
--- a/src/osgPlugins/directx/ReaderWriterDirectX.cpp
+++ b/src/osgPlugins/directx/ReaderWriterDirectX.cpp
@@ -50,7 +50,7 @@ class ReaderWriterDirectX : public osgDB::ReaderWriter
 public:
     ReaderWriterDirectX() { }
 
-    virtual const char* className() {
+    virtual const char* className() const {
         return "DirectX Reader/Writer";
     }
 
diff --git a/src/osgPlugins/dw/ReaderWriterDW.cpp b/src/osgPlugins/dw/ReaderWriterDW.cpp
index cb7e90086..cf01db77d 100644
--- a/src/osgPlugins/dw/ReaderWriterDW.cpp
+++ b/src/osgPlugins/dw/ReaderWriterDW.cpp
@@ -792,7 +792,7 @@ void _dwobj::buildDrawable(Group *grp)
 class ReaderWriterDW : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "Design Workshop Database Reader"; }
+        virtual const char* className() const { return "Design Workshop Database Reader"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/flt/ReaderWriterATTR.cpp b/src/osgPlugins/flt/ReaderWriterATTR.cpp
index c4dbf09de..688d7948e 100644
--- a/src/osgPlugins/flt/ReaderWriterATTR.cpp
+++ b/src/osgPlugins/flt/ReaderWriterATTR.cpp
@@ -742,7 +742,7 @@ flt::AttrData* Attr::createOsgStateSet()
 class ReaderWriterATTR : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "ATTR Image Attribute Reader/Writer"; }
+        virtual const char* className() const { return "ATTR Image Attribute Reader/Writer"; }
         
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/flt/ReaderWriterFLT.h b/src/osgPlugins/flt/ReaderWriterFLT.h
index 35c598167..908222526 100644
--- a/src/osgPlugins/flt/ReaderWriterFLT.h
+++ b/src/osgPlugins/flt/ReaderWriterFLT.h
@@ -48,7 +48,7 @@ class ReaderWriterFLT : public osgDB::ReaderWriter
 {
 public:
 
-    virtual const char* className() { return "FLT Reader/Writer"; }
+    virtual const char* className() const { return "FLT Reader/Writer"; }
     virtual bool acceptsExtension(const std::string& extension)
     {
         return osgDB::equalCaseInsensitive(extension,"flt");
diff --git a/src/osgPlugins/freetype/ReaderWriterFreeType.cpp b/src/osgPlugins/freetype/ReaderWriterFreeType.cpp
index 85993f561..d71ca6551 100644
--- a/src/osgPlugins/freetype/ReaderWriterFreeType.cpp
+++ b/src/osgPlugins/freetype/ReaderWriterFreeType.cpp
@@ -7,7 +7,7 @@
 class ReaderWriterFreeType : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "FreeType Font Reader/Writer"; }
+        virtual const char* className() const { return "FreeType Font Reader/Writer"; }
         
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/gdal/ReaderWriterGDAL.cpp b/src/osgPlugins/gdal/ReaderWriterGDAL.cpp
index b63febea8..b9ea4d524 100644
--- a/src/osgPlugins/gdal/ReaderWriterGDAL.cpp
+++ b/src/osgPlugins/gdal/ReaderWriterGDAL.cpp
@@ -13,7 +13,7 @@
 class ReaderWriterGDAL : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "GDAL Image Reader"; }
+        virtual const char* className() const { return "GDAL Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension)
         {
             return osgDB::equalCaseInsensitive(extension,"gdal") || osgDB::equalCaseInsensitive(extension,"gdal");
diff --git a/src/osgPlugins/geo/ReaderWriterGEO.cpp b/src/osgPlugins/geo/ReaderWriterGEO.cpp
index 3ef7734d3..232ee1a84 100644
--- a/src/osgPlugins/geo/ReaderWriterGEO.cpp
+++ b/src/osgPlugins/geo/ReaderWriterGEO.cpp
@@ -391,7 +391,7 @@ private:
 class ReaderWriterGEO : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "GEO Reader/Writer"; }
+        virtual const char* className() const { return "GEO Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/gif/ReaderWriterGIF.cpp b/src/osgPlugins/gif/ReaderWriterGIF.cpp
index b4db97ea4..933f3ab27 100644
--- a/src/osgPlugins/gif/ReaderWriterGIF.cpp
+++ b/src/osgPlugins/gif/ReaderWriterGIF.cpp
@@ -318,7 +318,7 @@ int *numComponents_ret)
 class ReaderWriterGIF : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "GIF Image Reader"; }
+        virtual const char* className() const { return "GIF Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension)
         {
             return osgDB::equalCaseInsensitive(extension,"gif");
diff --git a/src/osgPlugins/ive/ReaderWriterIVE.cpp b/src/osgPlugins/ive/ReaderWriterIVE.cpp
index 3a37e11c0..9fcef7de6 100644
--- a/src/osgPlugins/ive/ReaderWriterIVE.cpp
+++ b/src/osgPlugins/ive/ReaderWriterIVE.cpp
@@ -13,7 +13,7 @@ using namespace osgDB;
 class IVEReaderWriter : public ReaderWriter
 {
     public:
-        virtual const char* className() { return "IVE Reader/Writer"; }
+        virtual const char* className() const { return "IVE Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/jp2/ReaderWriterJP2.cpp b/src/osgPlugins/jp2/ReaderWriterJP2.cpp
index 7df3a7be5..31f2a0704 100644
--- a/src/osgPlugins/jp2/ReaderWriterJP2.cpp
+++ b/src/osgPlugins/jp2/ReaderWriterJP2.cpp
@@ -170,7 +170,7 @@ extern "C" {
 class ReaderWriterJP2 : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "RGB Image Reader/Writer"; }
+        virtual const char* className() const { return "RGB Image Reader/Writer"; }
         
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/jpeg/ReaderWriterJPEG.cpp b/src/osgPlugins/jpeg/ReaderWriterJPEG.cpp
index 205b22f1b..a42d2e02d 100644
--- a/src/osgPlugins/jpeg/ReaderWriterJPEG.cpp
+++ b/src/osgPlugins/jpeg/ReaderWriterJPEG.cpp
@@ -428,7 +428,7 @@ class ReaderWriterJPEG : public osgDB::ReaderWriter
             return 100;
         }
     public:
-        virtual const char* className() { return "JPEG Image Reader/Writer"; }
+        virtual const char* className() const { return "JPEG Image Reader/Writer"; }
         virtual bool acceptsExtension(const std::string& extension)
         {
             return osgDB::equalCaseInsensitive(extension,"jpeg") || osgDB::equalCaseInsensitive(extension,"jpg");
diff --git a/src/osgPlugins/lib3ds/ReaderWriter3DS.cpp b/src/osgPlugins/lib3ds/ReaderWriter3DS.cpp
index 03d64f8d1..90ff84da2 100644
--- a/src/osgPlugins/lib3ds/ReaderWriter3DS.cpp
+++ b/src/osgPlugins/lib3ds/ReaderWriter3DS.cpp
@@ -91,7 +91,7 @@ class ReaderWriter3DS : public osgDB::ReaderWriter
 
         ReaderWriter3DS();
 
-        virtual const char* className() { return "3DS Auto Studio Reader"; }
+        virtual const char* className() const { return "3DS Auto Studio Reader"; }
         virtual bool acceptsExtension(const std::string& extension) { return osgDB::equalCaseInsensitive(extension,"3ds"); }
 
         virtual ReadResult readNode(const std::string& file, const osgDB::ReaderWriter::Options*);
diff --git a/src/osgPlugins/logo/ReaderWriterLOGO.cpp b/src/osgPlugins/logo/ReaderWriterLOGO.cpp
index 7ea42cf56..a1ab58d9d 100644
--- a/src/osgPlugins/logo/ReaderWriterLOGO.cpp
+++ b/src/osgPlugins/logo/ReaderWriterLOGO.cpp
@@ -184,7 +184,7 @@ class Logos: public osg::Drawable
 class LOGOReaderWriter : public osgDB::ReaderWriter
 {
 public:
-        virtual const char* className() { return "Logo Database Reader/Writer"; }
+        virtual const char* className() const { return "Logo Database Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/lwo/ReaderWriterLWO.cpp b/src/osgPlugins/lwo/ReaderWriterLWO.cpp
index f9afea313..f06164977 100644
--- a/src/osgPlugins/lwo/ReaderWriterLWO.cpp
+++ b/src/osgPlugins/lwo/ReaderWriterLWO.cpp
@@ -46,7 +46,7 @@ class ReaderWriterLWO : public osgDB::ReaderWriter
 public:
     ReaderWriterLWO() { }
 
-    virtual const char* className() { return "Lightwave Object Reader"; }
+    virtual const char* className() const { return "Lightwave Object Reader"; }
     virtual bool acceptsExtension(const std::string& extension) {
         return osgDB::equalCaseInsensitive(extension,"lwo") || osgDB::equalCaseInsensitive(extension,"lw") || osgDB::equalCaseInsensitive(extension,"geo");
     }
diff --git a/src/osgPlugins/lws/ReaderWriterLWS.cpp b/src/osgPlugins/lws/ReaderWriterLWS.cpp
index 0acaae218..647253cb6 100644
--- a/src/osgPlugins/lws/ReaderWriterLWS.cpp
+++ b/src/osgPlugins/lws/ReaderWriterLWS.cpp
@@ -25,7 +25,7 @@ class ReaderWriterLWS : public osgDB::ReaderWriter
 public:
     ReaderWriterLWS() {}
 
-    virtual const char* className() { return "ReaderWriterLWS"; }
+    virtual const char* className() const { return "ReaderWriterLWS"; }
 
     virtual bool acceptsExtension(const std::string &extension) {
         return osgDB::equalCaseInsensitive(extension, "lws");
diff --git a/src/osgPlugins/md2/ReaderWriterMD2.cpp b/src/osgPlugins/md2/ReaderWriterMD2.cpp
index d6c2029c4..41b10eef4 100644
--- a/src/osgPlugins/md2/ReaderWriterMD2.cpp
+++ b/src/osgPlugins/md2/ReaderWriterMD2.cpp
@@ -45,7 +45,7 @@ class ReaderWriterMD2 : public osgDB::ReaderWriter
 public:
     ReaderWriterMD2 () { }
 
-    virtual const char* className () {
+    virtual const char* className () const {
 	return "Quake MD2 Reader";
     }
 
diff --git a/src/osgPlugins/mpeg/ReaderWriterMPEG.cpp b/src/osgPlugins/mpeg/ReaderWriterMPEG.cpp
index 8f1a5b427..37d671295 100644
--- a/src/osgPlugins/mpeg/ReaderWriterMPEG.cpp
+++ b/src/osgPlugins/mpeg/ReaderWriterMPEG.cpp
@@ -13,7 +13,7 @@ class ReaderWriterMPEG : public osgDB::ReaderWriter
 {
     public:
 
-        virtual const char* className() { return "MPEG ImageStream Reader"; }
+        virtual const char* className() const { return "MPEG ImageStream Reader"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/net/ReaderWriterNET.cpp b/src/osgPlugins/net/ReaderWriterNET.cpp
index f10a90975..396113583 100644
--- a/src/osgPlugins/net/ReaderWriterNET.cpp
+++ b/src/osgPlugins/net/ReaderWriterNET.cpp
@@ -75,7 +75,7 @@ class NetReader : public osgDB::ReaderWriter
     public:
         NetReader() {}
                                                                                             
-        virtual const char* className() { return "HTTP Protocol Model Reader"; }
+        virtual const char* className() const { return "HTTP Protocol Model Reader"; }
                                                                                             
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/obj/ReaderWriterOBJ.cpp b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
index 3600b341d..eaa1b2b3f 100644
--- a/src/osgPlugins/obj/ReaderWriterOBJ.cpp
+++ b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
@@ -50,7 +50,7 @@ class ReaderWriterOBJ : public osgDB::ReaderWriter
 public:
     ReaderWriterOBJ() { }
 
-    virtual const char* className() { return "Wavefront OBJ Reader"; }
+    virtual const char* className() const { return "Wavefront OBJ Reader"; }
     virtual bool acceptsExtension(const std::string& extension) {
         return osgDB::equalCaseInsensitive(extension,"obj");
     }
diff --git a/src/osgPlugins/osg/ReaderWriterOSG.cpp b/src/osgPlugins/osg/ReaderWriterOSG.cpp
index ae599ca8a..13baf0c02 100644
--- a/src/osgPlugins/osg/ReaderWriterOSG.cpp
+++ b/src/osgPlugins/osg/ReaderWriterOSG.cpp
@@ -16,7 +16,7 @@ using namespace osgDB;
 class OSGReaderWriter : public ReaderWriter
 {
     public:
-        virtual const char* className() { return "OSG Reader/Writer"; }
+        virtual const char* className() const { return "OSG Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/osgtgz/ReaderWriterOSGTGZ.cpp b/src/osgPlugins/osgtgz/ReaderWriterOSGTGZ.cpp
index 05b0b1461..61b3d6215 100644
--- a/src/osgPlugins/osgtgz/ReaderWriterOSGTGZ.cpp
+++ b/src/osgPlugins/osgtgz/ReaderWriterOSGTGZ.cpp
@@ -24,7 +24,7 @@ using namespace osg;
 class sgReaderWriterOSGTGZ : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "OSGTGZ Database Reader/Writer"; }
+        virtual const char* className() const { return "OSGTGZ Database Reader/Writer"; }
         virtual bool acceptsExtension(const std::string& extension)
         {
             return osgDB::equalCaseInsensitive(extension,"osgtgz");
diff --git a/src/osgPlugins/pfb/ReaderWriterPFB.cpp b/src/osgPlugins/pfb/ReaderWriterPFB.cpp
index 4a4254bb3..bcf67b354 100644
--- a/src/osgPlugins/pfb/ReaderWriterPFB.cpp
+++ b/src/osgPlugins/pfb/ReaderWriterPFB.cpp
@@ -29,7 +29,7 @@ class ReaderWriterPFB : public osgDB::ReaderWriter
 
         void initPerformer();
 
-        virtual const char* className() { return "Performer Reader/Writer"; }
+        virtual const char* className() const { return "Performer Reader/Writer"; }
         virtual bool acceptsExtension(const std::string& extension) 
 	{ 
 	    return 
diff --git a/src/osgPlugins/pic/ReaderWriterPIC.cpp b/src/osgPlugins/pic/ReaderWriterPIC.cpp
index 3e9e65c1d..618073cf3 100644
--- a/src/osgPlugins/pic/ReaderWriterPIC.cpp
+++ b/src/osgPlugins/pic/ReaderWriterPIC.cpp
@@ -191,7 +191,7 @@ int *numComponents_ret)
 class ReaderWriterPIC : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "PIC Image Reader"; }
+        virtual const char* className() const { return "PIC Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension) { return osgDB::equalCaseInsensitive(extension,"pic"); }
 
         virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options*)
diff --git a/src/osgPlugins/png/ReaderWriterPNG.cpp b/src/osgPlugins/png/ReaderWriterPNG.cpp
index eb9b08684..9b392ddcd 100644
--- a/src/osgPlugins/png/ReaderWriterPNG.cpp
+++ b/src/osgPlugins/png/ReaderWriterPNG.cpp
@@ -33,7 +33,7 @@ typedef struct
 class ReaderWriterPNG : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "PNG Image Reader/Writer"; }
+        virtual const char* className() const { return "PNG Image Reader/Writer"; }
         virtual bool acceptsExtension(const std::string& extension) { return osgDB::equalCaseInsensitive(extension,"png"); }
 
         virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options*)
diff --git a/src/osgPlugins/pnm/ReaderWriterPNM.cpp b/src/osgPlugins/pnm/ReaderWriterPNM.cpp
index 4e78fb323..fac9fd0fc 100644
--- a/src/osgPlugins/pnm/ReaderWriterPNM.cpp
+++ b/src/osgPlugins/pnm/ReaderWriterPNM.cpp
@@ -16,7 +16,7 @@ using namespace osg;
 class ReaderWriterPNM : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "PNM Image Reader/Writer"; }
+        virtual const char* className() const { return "PNM Image Reader/Writer"; }
         virtual bool acceptsExtension(const std::string& extension) 
 		{ 
 			return osgDB::equalCaseInsensitive(extension, "pnm") ||
diff --git a/src/osgPlugins/quicktime/ReaderWriterQT.cpp b/src/osgPlugins/quicktime/ReaderWriterQT.cpp
index 60aaa8c40..91a8d1f83 100644
--- a/src/osgPlugins/quicktime/ReaderWriterQT.cpp
+++ b/src/osgPlugins/quicktime/ReaderWriterQT.cpp
@@ -25,7 +25,7 @@ using namespace osg;
 class ReaderWriterQT : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "Default Quicktime Image Reader/Writer"; }
+        virtual const char* className() const { return "Default Quicktime Image Reader/Writer"; }
         
         virtual bool acceptsMovieExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/rgb/ReaderWriterRGB.cpp b/src/osgPlugins/rgb/ReaderWriterRGB.cpp
index b6dd455ff..84ce269d8 100644
--- a/src/osgPlugins/rgb/ReaderWriterRGB.cpp
+++ b/src/osgPlugins/rgb/ReaderWriterRGB.cpp
@@ -343,7 +343,7 @@ static void RawImageGetData(rawImageRec *raw, unsigned char **data )
 class ReaderWriterRGB : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "RGB Image Reader/Writer"; }
+        virtual const char* className() const { return "RGB Image Reader/Writer"; }
         
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/rot/ReaderWriterROT.cpp b/src/osgPlugins/rot/ReaderWriterROT.cpp
index 8cdafc48f..b977e22eb 100644
--- a/src/osgPlugins/rot/ReaderWriterROT.cpp
+++ b/src/osgPlugins/rot/ReaderWriterROT.cpp
@@ -52,7 +52,7 @@ class ReaderWriterROT : public osgDB::ReaderWriter
 public:
     ReaderWriterROT() { }
     
-    virtual const char* className() { return "rotation pseudo-loader"; }
+    virtual const char* className() const { return "rotation pseudo-loader"; }
 
     virtual bool acceptsExtension(const std::string& extension)
     { 
diff --git a/src/osgPlugins/scale/ReaderWriterSCALE.cpp b/src/osgPlugins/scale/ReaderWriterSCALE.cpp
index 0c37b4c04..03ec9a544 100644
--- a/src/osgPlugins/scale/ReaderWriterSCALE.cpp
+++ b/src/osgPlugins/scale/ReaderWriterSCALE.cpp
@@ -54,7 +54,7 @@ class ReaderWriterSCALE : public osgDB::ReaderWriter
 public:
     ReaderWriterSCALE() { }
     
-    virtual const char* className() { return "scaling pseudo-loader"; }
+    virtual const char* className() const { return "scaling pseudo-loader"; }
 
     virtual bool acceptsExtension(const std::string& extension)
     { 
diff --git a/src/osgPlugins/tga/ReaderWriterTGA.cpp b/src/osgPlugins/tga/ReaderWriterTGA.cpp
index 9820e1e4e..94e741672 100644
--- a/src/osgPlugins/tga/ReaderWriterTGA.cpp
+++ b/src/osgPlugins/tga/ReaderWriterTGA.cpp
@@ -475,7 +475,7 @@ int headerlen)
 class ReaderWriterTGA : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "TGA Image Reader"; }
+        virtual const char* className() const { return "TGA Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension) { return osgDB::equalCaseInsensitive(extension,"tga"); }
 
         virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options*)
diff --git a/src/osgPlugins/tgz/ReaderWriterTGZ.cpp b/src/osgPlugins/tgz/ReaderWriterTGZ.cpp
index 73cbc5496..e9a5d71ad 100644
--- a/src/osgPlugins/tgz/ReaderWriterTGZ.cpp
+++ b/src/osgPlugins/tgz/ReaderWriterTGZ.cpp
@@ -24,7 +24,7 @@ using namespace osg;
 class ReaderWriterTGZ : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "TGZ Database Reader/Writer"; }
+        virtual const char* className() const { return "TGZ Database Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {
diff --git a/src/osgPlugins/tiff/ReaderWriterTIFF.cpp b/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
index 435bdafb9..695893c5d 100644
--- a/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
+++ b/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
@@ -412,7 +412,7 @@ int *numComponents_ret)
 class ReaderWriterTIFF : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "TIFF Image Reader"; }
+        virtual const char* className() const { return "TIFF Image Reader"; }
         virtual bool acceptsExtension(const std::string& extension) 
         { 
             if( osgDB::equalCaseInsensitive(extension,"tiff")) return true;
diff --git a/src/osgPlugins/trans/ReaderWriterTRANS.cpp b/src/osgPlugins/trans/ReaderWriterTRANS.cpp
index 302b3eab1..516be5f10 100644
--- a/src/osgPlugins/trans/ReaderWriterTRANS.cpp
+++ b/src/osgPlugins/trans/ReaderWriterTRANS.cpp
@@ -52,7 +52,7 @@ class ReaderWriterTRANS : public osgDB::ReaderWriter
 public:
     ReaderWriterTRANS() { }
     
-    virtual const char* className() { return "translation pseudo-loader"; }
+    virtual const char* className() const { return "translation pseudo-loader"; }
 
     virtual bool acceptsExtension(const std::string& extension)
     { 
diff --git a/src/osgPlugins/txp/ReaderWriterTXP.h b/src/osgPlugins/txp/ReaderWriterTXP.h
index 3c217d572..1ad48807b 100644
--- a/src/osgPlugins/txp/ReaderWriterTXP.h
+++ b/src/osgPlugins/txp/ReaderWriterTXP.h
@@ -50,7 +50,7 @@ namespace txp
 class ReaderWriterTXP : public osgDB::ReaderWriter
 {
 public:
-    virtual const char* className()
+    virtual const char* className() const
     {
         return "TXP Reader/Writer";
     }
diff --git a/src/osgPlugins/zip/ReaderWriterZIP.cpp b/src/osgPlugins/zip/ReaderWriterZIP.cpp
index 3a74a9fe2..182a998aa 100644
--- a/src/osgPlugins/zip/ReaderWriterZIP.cpp
+++ b/src/osgPlugins/zip/ReaderWriterZIP.cpp
@@ -22,7 +22,7 @@
 class ReaderWriterZIP : public osgDB::ReaderWriter
 {
     public:
-        virtual const char* className() { return "ZIP Database Reader/Writer"; }
+        virtual const char* className() const { return "ZIP Database Reader/Writer"; }
 
         virtual bool acceptsExtension(const std::string& extension)
         {