Simplified the handling of the accessibility option and made it consistent with other options

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_Accessibility@828039 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/trunk/accessibility.xml

           <code>fop -a -fo mydocument.fo -pdf mydocument.pdf</code>            
         </li>
         <li>
-          <strong>Embedding:</strong> <code>userAgent.getRendererOptions().put("accessibility", Boolean.TRUE);</code>
+          <strong>Embedding:</strong> <code>userAgent.setAccessibility(true);</code>
         </li>
         <li>
           <strong>Optional setting in fop.xconf file:</strong>

src/java/org/apache/fop/apps/FOUserAgent.java

         this.factory = factory;
         setBaseURL(factory.getBaseURL());
         setTargetResolution(factory.getTargetResolution());
-        if (this.getRendererOptions().get(AccessibilityUtil.ACCESSIBILITY) == null) {
-            this.rendererOptions.put(AccessibilityUtil.ACCESSIBILITY, Boolean.FALSE);
-        }
+        setAccessibility(factory.isAccessibilityEnabled());
     }
 
     /** @return the associated FopFactory instance */
             getFactory().getFontManager().setFontBaseURL(fontBaseUrl);
         } catch (MalformedURLException e) {
             throw new IllegalArgumentException(e.getMessage());
-    }
+        }
     }
 
     /**
         this.conserveMemoryPolicy = conserveMemoryPolicy;
     }
 
+    /**
+     * Activates accessibility (for output formats that support it).
+     *
+     * @param accessibility <code>true</code> to enable accessibility support
+     */
+    public void setAccessibility(boolean accessibility) {
+        if (accessibility) {
+            getRendererOptions().put(AccessibilityUtil.ACCESSIBILITY, Boolean.TRUE);
+        }
+    }
+
     /**
      * Check if accessibility is enabled.
      * @return true if accessibility is enabled

src/java/org/apache/fop/apps/FopFactory.java

 import org.apache.xmlgraphics.image.loader.ImageContext;
 import org.apache.xmlgraphics.image.loader.ImageManager;
 
-import org.apache.fop.accessibility.AccessibilityUtil;
 import org.apache.fop.fo.ElementMapping;
 import org.apache.fop.fo.ElementMappingRegistry;
 import org.apache.fop.fonts.FontCache;
      */
     public FOUserAgent newFOUserAgent() {
         FOUserAgent userAgent = new FOUserAgent(this);
-        userAgent.getRendererOptions().put(AccessibilityUtil.ACCESSIBILITY,
-                Boolean.valueOf(this.accessibility));
         return userAgent;
     }
 
     /**
-     * Used for accessibility to pass value to newFOUserAgent
-     * @param value set through xconf file
+     * Sets accessibility support.
+     *
+     * @param value <code>true</code> to enable accessibility, <code>false</code> otherwise
      */
     void setAccessibility(boolean value) {
         this.accessibility = value;
     }
 
+    boolean isAccessibilityEnabled() {
+        return accessibility;
+    }
+
     /**
      * Returns a new {@link Fop} instance. FOP will be configured with a default user agent
      * instance.