From Lilin Xiong, "I change ive plugin a little for osgText inout, so the ive plugin supports backdrop setting,

and Text3D, FadeText inout :

1. in DataInputStream.cpp, add 1286--1293 lines;
2. in Text.cpp, add some code for text's Backdrop setting;
3. in IveVersion.h, add line 39,  increase the VERSION to VERSION_028(line 41)
4. in ReadWrite.h,  add line 146,147
5. add file FadeText.h, FadeText.cpp, Text3D.h, Text3D.cpp."

src/osgPlugins/ive/Text3D.cpp

@@ -0,0 +1,217 @@
+/**********************************************************************
+ *
+ *    FILE:            Text3D.cpp
+ *
+ *    DESCRIPTION:    Read/Write osgText::Text3D in binary format to disk.
+ *
+ *    CREATED BY:        Auto generated by iveGenerator
+ *                    and later modified by Rune Schmidt Jensen.
+ *
+ *    HISTORY:        Created 27.3.2003
+ *
+ *    Copyright 2003 VR-C
+ **********************************************************************/
+
+#include "Exception.h"
+#include "Text3D.h"
+#include "Text.h"
+#include "Drawable.h"
+#include "Object.h"
+
+#include <osgDB/FileUtils>
+#include <osgDB/FileNameUtils>
+#include <osg/Notify>
+
+using namespace ive;
+
+void Text3D::write(DataOutputStream* out){
+    // Write Text's identification.
+    out->writeInt(IVETEXT3D);
+    // If the osg class is inherited by any other class we should also write this to file.
+    osg::Object*  obj = dynamic_cast<osg::Object*>(this);
+    if(obj){
+        ((ive::Drawable*)(obj))->write(out);
+    }
+    else
+        throw Exception("Text::write(): Could not cast this osgText::Text to an osg::Drawable.");
+    // Write Text's properties.
+    if( getFont() )
+    {
+        std::string fname = getFont()->getFileName();
+
+        if(!fname.empty())
+        {
+            if(out->getUseOriginalExternalReferences())
+            {
+                out->writeString(fname); //Saving file name with local directory
+            }
+            else
+            {
+                out->writeString(osgDB::getSimpleFileName(fname)); //Saving original file name
+            }
+        }
+        else
+            out->writeString(""); //Blank string
+    }
+    else
+        out->writeString(""); //Blank string
+
+    out->writeUInt(getFontWidth());
+    out->writeUInt(getFontHeight());
+    out->writeFloat(getCharacterHeight());
+    out->writeFloat(getCharacterAspectRatio());
+    out->writeUInt(getCharacterSizeMode());
+    out->writeFloat(getMaximumWidth());
+    out->writeFloat(getMaximumHeight());
+    
+    out->writeFloat(getLineSpacing());
+    
+    out->writeUInt(getAlignment());
+
+    out->writeQuat(getRotation()); //FIXME: controllare che ci sia
+
+    out->writeBool(getAutoRotateToScreen());
+    out->writeUInt(getLayout());
+    out->writeVec3(getPosition());
+//    out->writeVec4(getColor());
+    out->writeUInt(getDrawMode());
+
+    //for text3d's property
+    out->writeFloat(getCharacterDepth());
+    out->writeUInt(getRenderMode());
+
+    // text :: Modified from osgPlugins::osg
+    const osgText::String& textstring = getText();
+    bool isACString = true;
+    osgText::String::const_iterator itr;
+    for(itr=textstring.begin();
+        itr!=textstring.end() && isACString;
+        ++itr)
+    {
+        if (*itr==0 || *itr>256) isACString=false;
+    }
+
+    if (isACString)
+    {
+        std::string str;
+
+        for(itr=textstring.begin();
+            itr!=textstring.end();
+            ++itr)
+        {
+            str += (char)(*itr);
+        }
+
+        //std::copy(textstring.begin(),textstring.end(),std::back_inserter(str));
+        
+        out->writeBool(true);
+        out->writeString(str);
+    }
+    else
+    {
+        // do it the hardway...output each character as an int
+        osg::ref_ptr<osg::UIntArray> strarr = new osg::UIntArray(textstring.size());
+        
+        for(itr=textstring.begin();
+            itr!=textstring.end();
+            ++itr)
+        {
+            strarr->push_back((*itr));
+        }
+
+        out->writeBool(false);
+        out->writeUIntArray(strarr.get());
+    }
+}
+
+void Text3D::read(DataInputStream* in){
+    // Peek on Text3D's identification.
+    int id = in->peekInt();
+    if(id == IVETEXT3D){
+        // Read Text3D's identification.
+        id = in->readInt();
+        // If the osg class is inherited by any other class we should also read this from file.
+        osg::Object*  obj = dynamic_cast<osg::Object*>(this);
+        if(obj){
+            ((ive::Drawable*)(obj))->read(in);
+        }
+        else
+            throw Exception("Text::read(): Could not cast this osgText::Text to an osg::Drawable.");
+        // Read Text's properties
+
+    unsigned int width, height;
+    float c_height, aspectRatio;
+
+    setFont(in->readString());
+
+    width = in->readUInt();
+    height = in->readUInt();
+
+    setFontResolution(width,height);
+
+    c_height = in->readFloat();
+    aspectRatio = in->readFloat();
+
+    setCharacterSize(c_height,aspectRatio);
+
+    setCharacterSizeMode((osgText::TextBase::CharacterSizeMode) in->readUInt());
+
+    setMaximumWidth(in->readFloat());
+    setMaximumHeight(in->readFloat());
+
+    if ( in->getVersion() >= VERSION_0020 )
+    {
+        setLineSpacing(in->readFloat());
+    }
+
+    setAlignment((osgText::TextBase::AlignmentType) in->readUInt());
+
+    //Nothing to do...
+    //setAxisAlignment((osgText::Text::AxisAlignment) in->readUint());
+
+    setRotation(in->readQuat());
+    setAutoRotateToScreen(in->readBool());
+    setLayout((osgText::Text::Layout) in->readUInt());
+
+    setPosition(in->readVec3());
+//    setColor(in->readVec4());
+    setDrawMode(in->readUInt());
+
+    //for text3d's property
+    setCharacterDepth(in->readFloat());
+    setRenderMode((osgText::Text3D::RenderMode) in->readUInt());
+
+    if(in->readBool())
+        setText(in->readString());
+    else
+    {
+        if ( in->getVersion() >= VERSION_0018 )
+        {
+            osgText::String textstr;
+            osg::ref_ptr<osg::UIntArray> arr = in->readUIntArray();
+            for(unsigned int i = 0; i < arr->getNumElements(); i++)
+            {
+                textstr.push_back( arr->at(i) );
+            }
+
+            setText(textstr);
+        }
+        else
+        {
+            // buggy original path, should have used a UIntArray originally, now fixed above.
+            std::string textstr;
+            osg::ref_ptr<osg::UByteArray> arr = in->readUByteArray();
+            for(unsigned int i = 0; i < arr->getNumElements(); i++)
+            {
+                textstr += (char) arr->at(i);
+            }
+
+            setText(textstr);
+        }
+    }
+
+    }
+    else{
+        throw Exception("Text3D::read(): Expected ShadeModel identification.");
+    }
+}