Bug 196272 Text position is incorrect in postscript and ppt.
Text position need to be ajusted according to baseline position.
engine/org.eclipse.birt.report.engine.emitter.postscript/src/org/eclipse/birt/report/engine/emitter/postscript/PostscriptWriter.java
File file = new File( fontPath );
		ITrueTypeWriter trueTypeWriter = (ITrueTypeWriter) trueTypeFontWriters
				.get( file );
		if ( trueTypeWriter != null )
		{
			return trueTypeWriter;
		}
		else
		{
			TrueTypeFont ttFont = TrueTypeFont.getInstance( fontPath );
			trueTypeWriter = ttFont.getTrueTypeWriter( out );
			trueTypeWriter.initialize( );
			trueTypeFontWriters.put( file, trueTypeWriter );
			return trueTypeWriter;
		}
	}
	private String getFontPath( String fontName )
	{
		try
		{
			FontFactoryImp fontImpl = FontFactory.getFontImp( );
			Properties trueTypeFonts = (Properties) getField(
					FontFactoryImp.class, "trueTypeFonts", fontImpl );
			String fontPath = trueTypeFonts.getProperty( fontName.toLowerCase( ) );
			return fontPath;
		}
		catch ( Exception e )
		{
			e.printStackTrace( );
		}