Renamed osgText::Font::SizePair to osgText::FontSizePair in prep for use this more

widely within osgText/freetype plugin.

Added support for inserting loading models into --mt multithreaded implementation.

include/osgText/Font

@@ -24,6 +24,7 @@
 #include <osg/buffered_value>
 #include <osg/TexEnv>
 #include <osgDB/ReaderWriter>
+
 #include <osgText/Export>
 #include <osgText/KerningType>
 
@@ -34,7 +35,6 @@ namespace osgText {
 class Font;
 class Text;
 
-
 /** Read a font from specified file. The filename may contain a path.
   * It will search for the font file in the following places in this order: 
   * - In the current directory
@@ -176,12 +176,11 @@ protected:
     typedef std::vector< osg::ref_ptr<osg::StateSet> >      StateSetList;
     typedef std::map< unsigned int, osg::ref_ptr<Glyph> >   GlyphMap;
     
-    typedef std::pair< unsigned int, unsigned int >         SizePair;
-    typedef std::map< SizePair, GlyphMap >                  SizeGlyphMap;
+    typedef std::map< FontSizePair, GlyphMap >              FontSizeGlyphMap;
     
     osg::ref_ptr<osg::TexEnv>       _texenv;
     osg::ref_ptr<osg::StateSet>     _stateset;
-    SizeGlyphMap                    _sizeGlyphMap;
+    FontSizeGlyphMap                _sizeGlyphMap;
     GlyphTextureList                _glyphTextureList;
     
     // current active size of font

include/osgText/KerningType

@@ -16,11 +16,15 @@
 
 namespace osgText
 {
+
+typedef std::pair< unsigned int, unsigned int > FontSizePair;
+
 enum KerningType
 {
     KERNING_DEFAULT,    //default locked to integer kerning values
     KERNING_UNFITTED,   //use floating point value for kerning
     KERNING_NONE        //no kerning
 };
+
 }
 #endif /*OSGTEXT_KERNINGTYPE*/