Adding new diagram types

    /**
    * Descriptor of a specific diagram.
    */
    public class SpecificDiagramDescriptor extends DiagramDescriptor
    {
         public static final String SPECIFIC_DIAGRAM = "Specific Diagram";
 
        /**
        * Let this diagram type be a sub type of a class diagram type.
        */
        public String getSuperType()
        {
            return DiagramType.UML_CLASS_DIAGRAM;
        }
 
        /**
        * This is a creatable diagram.
        */
        public boolean isCreatable()
        {
            return true;
        }
 
        /**
        * Actions used in this diagram.
        */
        public MDActionsManager getDiagramActions()
        {
            return SpecificDiagramActions.ACTIONS;
        }
 
        /**
        * A configurator for a diagram toolbar.
        */
        public AMConfigurator getDiagramToolbarConfigurator()
        {
            return new SpecificDiagramToolbarConfigurator();
        }
 
        /**
        * A configurator for diagram shortcuts.
        */
        public AMConfigurator getDiagramShortcutsConfigurator()
        {
            return new ClassDiagramShortcutsConfigurator();
        }
 
        /**
        * A configurator for a diagram shortcut menu.
        */
        public DiagramContextAMConfigurator getDiagramContextConfigurator()
        {
            return new BaseDiagramContextAMConfigurator();
        }
 
        /**
        * Id of the diagram type.
        */
        public String getDiagramTypeId()
        {
            return SPECIFIC_DIAGRAM;
        }
 
        /**
        * A diagram type human name.
        */
        public String getSingularDiagramTypeHumanName()
        {
            return "Specific Diagram";
        }
 
        /**
        * A diagram type human name in a plural form.
        */
        public String getPluralDiagramTypeHumanName()
        {
            return "Specific Diagrams";
        }
 
        /**
        * Resizable svg icon for diagram.
        */
        public ResizableIcon getSVGIcon()
		{
   			ResizableIcon icon = null;
   			try
			{
      			icon = IconsFactory.getSvgIcon(new File("icons/specificdiagram.svg").toURI().toURL());
   			}
   			catch(Exception e){e.printStackTrace();}
   			return icon;
		}
 
        /**
        * URL to a small icon for a diagram.
        */
        public URL getSmallIconURL()
        {
             return getClass().getResource("icons/specificdiagram.svg");
        }
    }

	class SpecificDiagramPlugin extends Plugin{
        /**
        * Initializing the plugin.
        */
        public void init()
        {
            // Registering a new diagram type
            Application.getInstance().addNewDiagramType(new SpecificDiagramDescriptor());
        }
        /**
        * Always returns true, because this plugin does not have any close specific actions.
        */
        public boolean close()
        {
            return true;
        }
        /**
        * Always returns true, because this plugin does not have any specific suportability conditions.
        */
        public boolean isSupported()
        {
            return true;
        }
    }