What Fonts are Available in myJVM?

A while back I was looking for a quick way to determine what fonts were available in my JVM. I came across the java GraphicsEnvironment class, which returns an array of font families available in the current graphics environment. So I threw together a quick loop, and presto .. I had sample images of the available fonts in my JVM.

<cfset environ = createObject("java", "java.awt.GraphicsEnvironment").getLocalGraphicsEnvironment()>
<cfset allFamilies = environ.getAvailableFontFamilyNames()>

<h3>Display Available Font Families</h3>

<table>
<cfoutput>
   <cfset failedFonts    = [] >
   <cfloop array="#allFamilies#" index="family">
       <cftry>
               <cfset img  = ImageNew("", 200, 35, "argb", "##dcdcdc")>
              <cfset prop = { font=family, size="14", style="plain" }>
              <cfset ImageSetAntiAliasing( img, "on" )>
              <cfset ImageSetDrawingColor( img, "##000000" )>
              <cfset ImageDrawText( img, family, 15, 15, prop)>
               <cfset wasRendered = true>

              <cfcatch>
                <cfset arrayAppend( failedFonts, family )>
                  <cfset wasRendered = false>
              </cfcatch>
        </cftry>

        <cfif wasRendered>
            <tr><td><cfimage action="writeToBrowser" source="#img#"></td></tr>
           </cfif>
   </cfloop>
</cfoutput>
</table>
<br>

<h3>Unable to display fonts:</h3>
<cfdump var="#failedFonts#">

One thing that surprised me was that a few of the fonts could not be displayed. Namely the five (5) logical fonts and a few of the Lucida fonts. If you are not familiar with the term logical fonts, one of the old sun api's describes them as:

" .. not actual font libraries that are installed anywhere on your system. They are merely font-type names recognized by the Java runtime which must be mapped to some physical font that is installed on your system."

While I understand the difference between logical and physical fonts, I was still surprised logical font names were not accepted by the ImageDrawText function. When I created a java Font object directly, it worked fine. So I guess I was expecting ImageDrawText to behave the same way.

Using Java Font Object

<cfscript>
    img = ImageNew("", 100, 50, "argb");
    Color = createObject("java", "java.awt.Color");
    Font = createObject("java", "java.awt.Font");
    textFont = Font.init( "Dialog", Font.PLAIN, javacast("int", 12));
    graphics = ImageGetBufferedImage( img ).getGraphics();
    graphics.setColor( Color.BLACK );
    graphics.setFont( textFont );
    graphics.drawString( textFont.getFamily(), javacast("int", 10), javacast("int", 10) );
</cfscript>

<cfimage action="writeToBrowser" source="#img#">

As the documentation on ImageDrawText does not say much about the "font" attribute, that may be a misunderstanding on my part. If anyone can shed some light on this, I am eager to be enlightened ;-)