added components method which returns components-array

lib/rswing/components/container.rb

@@ -55,7 +55,7 @@ def add_with_name(component, name_symbol)
       # Removes a component from this container. 
       # Also removes it from the component_hash
       def remove(component)
-        super.remove(component)
+        super(component)
         # delete all entries with component as value in component_hash
         self.component_hash.delete_if { |key,value| value == component }
       end
@@ -70,6 +70,16 @@ def [](name_symbol)
         end
       end
 
+      # Returns the components of a container.
+      # If the container uses a content_pane, its components are returned.
+      def components
+        if self.respond_to?(:getContentPane)
+          self.content_pane.components
+        else
+          super
+        end
+      end
+
       # Adds a component to a container, if specified via :belongs_to in options.
       def self.add_if_requested(component, options)
         if(container = Options.value_for(options => :belongs_to))