}

        if (renderable.hasComment()) {

            renderable.removeComment();

        }

    }

        }

        if (renderable.hasComment()) {

            renderable.removeComment();

        }

    }

                    + "representation, we recieve a null instance.\n\tIf the Block instance of an ID is non-null"

                    + "then its graphical RenderableBlock should be non-null as well");

        }

        parentRenderable.blockDisconnected(parentSocket);

    }

                    // drop and link the new block

                    link.connect();

                    dropBlock(childBlock);

                            workspace,

                            workspace.getEnv().getRenderableBlock(link.getPlugBlockID()).getParentWidget(),

                            link, WorkspaceEvent.BLOCKS_CONNECTED));

                    workspace.getEnv().getRenderableBlock(link.getSocketBlockID()).moveConnectedBlocks();

                    workspace.getEnv().getRenderableBlock(link.getSocketBlockID()).repaintBlock();

        }

        block.setParentWidget(null);

        Workspace workspace = block.getWorkspace();

    }

            } else {

                link = null;

            }//assume link is not null

            link.connect();

        }

        if (node.getAfterNode() != null) {

            BlockConnector socket = block.getAfterConnector(); //assume has after connector

            BlockNode child = node.getAfterNode();

            RenderableBlock childRenderable = makeRenderable(workspace, child, widget);

            Block childBlock = workspace.getEnv().getBlock(childRenderable.getBlockID());

            //link blocks

            BlockLink link;

            if (childBlock.hasPlug()) {

                link = BlockLinkChecker.canLink(workspace, block, childBlock, socket, childBlock.getPlug());

            } else if (childBlock.hasBeforeConnector()) {

                link = BlockLinkChecker.canLink(workspace, block, childBlock, socket, childBlock.getBeforeConnector());

            } else {

                link = null;

            }//assume link is not null

            link.connect();

        }

        return renderable;

    }

    public void mouseClicked(MouseEvent e) {

        toggle();

        RenderableBlock rb = workspace.getEnv().getRenderableBlock(getBlockID());

        rb.getComment().setVisible(isActive());

        update();

        rb.revalidate();

        rb.repaint();

        workspace.getMiniMap().repaint();

    }

        RenderableBlock rb = workspace.getEnv().getRenderableBlock(link.getSocketBlockID());

        link.disconnect();

        rb.blockDisconnected(link.getSocket());

        workspace.notifyListeners(

    }

                // we don't actually want it to have a chance to remove any expandable sockets

                // since the inserted block will be filling whatever socket was vacated by this

                // broken link.

                //NOTIFY WORKSPACE LISTENERS OF DISCONNECTION (not sure if this is great because the connection is immediately replaced)

            }

        }

        if (plug.hasBlock()) {

            // in the case of insertion, breaking the link above will mean that

            // the plug shouldn't be connected by the time we reach here.  This