Checked in Macro Jez's additions to osgText to support .osg IO make it

a fully functioning NodeKit.

Also reimplement notify() to try an prevent a crash which has been caused by
to objects in notify.cpp being initiliazed twice, the second time the auto_ptr
holding the dev/null ofstream was being initilized to 0.

src/osgText/IO_Text.cpp

@@ -0,0 +1,128 @@
+#include <osgText/Text>
+#include <osgText/Font>
+
+#include <iostream>
+#include <string>
+
+#include <osg/Vec3>
+#include <osg/Vec4>
+
+#include <osgDB/Registry>
+#include <osgDB/Input>
+#include <osgDB/Output>
+
+bool Text_readLocalData(osg::Object &obj, osgDB::Input &fr);
+bool Text_writeLocalData(const osg::Object &obj, osgDB::Output &fw);
+
+osgDB::RegisterDotOsgWrapperProxy Text_Proxy
+(
+    osgNew osgText::Text,
+    "Text",
+    "Object Drawable Text",
+    Text_readLocalData,
+    Text_writeLocalData
+);
+
+bool Text_readLocalData(osg::Object &obj, osgDB::Input &fr)
+{
+    osgText::Text &myobj = static_cast<osgText::Text &>(obj);
+    bool itAdvanced = false;
+
+    // position
+    if (fr[0].matchWord("position")) {
+        osg::Vec3 p;
+        if (fr[1].getFloat(p.x()) && fr[2].getFloat(p.y()) && fr[3].getFloat(p.z())) {
+            myobj.setPosition(p);
+            fr += 4;
+            itAdvanced = true;
+        }
+    }
+
+    // color
+    if (fr[0].matchWord("color")) {
+        osg::Vec4 c;
+        if (fr[1].getFloat(c.x()) && fr[2].getFloat(c.y()) && fr[3].getFloat(c.z()) && fr[4].getFloat(c.w())) {
+            myobj.setColor(c);
+            fr += 4;
+            itAdvanced = true;
+        }
+    }
+
+    // draw mode
+    if (fr[0].matchWord("drawMode")) {
+        int i;
+        if (fr[1].getInt(i)) {
+            myobj.setDrawMode(i);
+            fr += 2;
+            itAdvanced = true;
+        }
+    }
+
+    // bounding box
+    if (fr[0].matchWord("boundingBox")) {
+        int i;
+        if (fr[1].getInt(i)) {
+            myobj.setBoundingBox(i);
+            fr += 2;
+            itAdvanced = true;
+        }
+    }
+
+    // alignment
+    if (fr[0].matchWord("alignment")) {
+        int i;
+        if (fr[1].getInt(i)) {
+            myobj.setAlignment(i);
+            fr += 2;
+            itAdvanced = true;
+        }
+    }
+
+    // font
+    osgText::Font *font = dynamic_cast<osgText::Font *>(fr.readObject());
+    if (font) {
+        myobj.setFont(font);
+        itAdvanced = true;
+    }
+
+    // text
+    if (fr.matchSequence("text %s")) {
+        myobj.setText(std::string(fr[1].getStr()));
+        fr += 2;
+        itAdvanced = true;
+    }
+
+    return itAdvanced;
+}
+
+bool Text_writeLocalData(const osg::Object &obj, osgDB::Output &fw)
+{
+    const osgText::Text &myobj = static_cast<const osgText::Text &>(obj);
+
+    // position
+    osg::Vec3 p = myobj.getPosition();
+    fw.indent() << "position " << p.x() << " " << p.y() << " " << p.z() << std::endl;
+
+    // color
+    osg::Vec4 c = myobj.getColor();
+    fw.indent() << "color " << c.x() << " " << c.y() << " " << c.z() << " " << c.w() << std::endl;
+
+    // draw mode
+    fw.indent() << "drawMode " << myobj.getDrawMode() << std::endl;
+
+    // bounding box
+    fw.indent() << "boundingBox " << myobj.getBoundingBox() << std::endl;
+
+    // alignment
+    fw.indent() << "alignment " << myobj.getAlignment() << std::endl;
+
+    // font
+    fw.writeObject(*myobj.getFont());
+
+    // text
+    fw.indent() << "text \"" << myobj.getText() << "\"" << std::endl;
+
+    return true;
+}
+
+