/**
  * Enable/disable the toolbar.
  *
  * @param enabled true to enable, false to disable.
  */
 public void setEnabled(boolean enabled) {
   tbrToolBar.setEnabled(enabled);
 }
 /** Updates the menu when the current database project is closed. */
 public void onDatabaseClose() {
   if (tbrToolBar != null) tbrToolBar.setEnabled(false);
 }
  /**
   * Does Nothing
   *
   * @param selected, true to enable, false to disable.
   */
  public void setNodeOrLinkSelected(boolean selected) {
    if (tbrToolBar != null) {

      UIViewFrame frame = ProjectCompendium.APP.getCurrentFrame();
      if (selected && frame instanceof UIMapViewFrame) {
        UIMapViewFrame oMapFrame = (UIMapViewFrame) frame;
        UIViewPane pane = oMapFrame.getViewPane();

        int nLinkCount = pane.getNumberOfSelectedLinks();
        if (nLinkCount == 0) return;

        bJustSetting = true;

        int i = 0;
        UILink link = null;
        LinkProperties linkProps = null;
        boolean bDefaultLinkStyle = false;
        boolean bDefaultLinkDashed = false;
        boolean bDefaultLinkWeight = false;
        boolean bDefaultLinkColour = false;
        boolean bDefaultArrowType = false;

        LinkProperties defaultprops = UIUtilities.getLinkProperties("");
        int linkstyle = defaultprops.getLinkStyle();
        int linkdashed = defaultprops.getLinkDashed();
        int linkweight = defaultprops.getLinkWeight();
        int linkcolour = defaultprops.getLinkColour();
        int arrowtype = defaultprops.getArrowType();

        for (Enumeration e = pane.getSelectedLinks(); e.hasMoreElements(); ) {
          link = (UILink) e.nextElement();
          linkProps = link.getLinkProperties();
          if (i == 0) {
            linkstyle = linkProps.getLinkStyle();
            linkdashed = linkProps.getLinkDashed();
            linkweight = linkProps.getLinkWeight();
            linkcolour = linkProps.getLinkColour();
            arrowtype = linkProps.getArrowType();
            i++;
          } else {
            if (arrowtype != linkProps.getArrowType()) {
              bDefaultArrowType = true;
            }
            if (linkstyle != linkProps.getLinkStyle()) {
              bDefaultLinkStyle = true;
            }
            if (linkdashed != linkProps.getLinkDashed()) {
              bDefaultLinkDashed = true;
            }
            if (linkweight != linkProps.getLinkWeight()) {
              bDefaultLinkWeight = true;
            }
            if (linkcolour != linkProps.getLinkColour()) {
              bDefaultLinkColour = true;
            }
          }
        }

        tbrToolBar.setEnabled(true);

        if (bDefaultLinkColour) {
          selectedLinkColour = new Color(defaultprops.getLinkColour());
        } else {
          selectedLinkColour = new Color(linkcolour);
        }

        linkColourPanel.setEnabled(true);
        txtLinkColour.setEnabled(true);

        cbLineWeight.setEnabled(true);
        if (bDefaultLinkWeight) {
          cbLineWeight.setSelectedIndex(defaultprops.getLinkWeight() - 1);
        } else {
          cbLineWeight.setSelectedIndex(linkweight - 1);
        }

        cbArrows.setEnabled(true);
        if (bDefaultArrowType) {
          cbArrows.setSelectedIndex(defaultprops.getArrowType());
        } else {
          cbArrows.setSelectedIndex(arrowtype);
        }

        cbLinkStyle.setEnabled(true);
        if (bDefaultLinkStyle) {
          cbLinkStyle.setSelectedIndex(defaultprops.getLinkStyle());
        } else {
          cbLinkStyle.setSelectedIndex(linkstyle);
        }

        cbLinkDashed.setEnabled(true);
        if (bDefaultLinkDashed) {
          cbLinkDashed.setSelectedIndex(defaultprops.getLinkDashed());
        } else {
          cbLinkDashed.setSelectedIndex(linkdashed);
        }

        bJustSetting = false;

      } else if (!selected) {

        bJustSetting = true;

        linkColourPanel.setEnabled(false);
        txtLinkColour.setEnabled(false);
        tbrToolBar.setEnabled(false);
        cbArrows.setEnabled(false);
        cbLineWeight.setEnabled(false);
        cbLinkStyle.setEnabled(false);
        cbLinkDashed.setEnabled(false);

        bJustSetting = false;
      }
    }
  }
  /**
   * Create and return the toolbar with the node formatting options.
   *
   * @return UIToolBar, the toolbar with all the node formatting options.
   */
  private UIToolBar createToolBar(int orientation) {

    tbrToolBar =
        new UIToolBar(
            LanguageProperties.getString(
                LanguageProperties.TOOLBARS_BUNDLE, "UIToolBarFormatLink.name"),
            UIToolBar.NORTHSOUTH); // $NON-NLS-1$
    tbrToolBar.setOrientation(orientation);
    tbrToolBar.setEnabled(false);
    CSH.setHelpIDString(tbrToolBar, "toolbars.formatlink"); // $NON-NLS-1$

    GridBagLayout grid = new GridBagLayout();
    linkPanel = new JPanel(grid);
    linkColourPanel = new JPanel(new BorderLayout());
    linkColourPanel.setBackground(Color.black);

    JLabel label = new JLabel(" "); // $NON-NLS-1$
    GridBagConstraints con5 = new GridBagConstraints();
    con5.fill = GridBagConstraints.NONE;
    con5.anchor = GridBagConstraints.CENTER;
    grid.addLayoutComponent(label, con5);
    linkPanel.add(label);

    txtLinkColour = new JLabel(UIImages.get(BACKGROUND_COLOUR));
    txtLinkColour.setBorder(null);
    txtLinkColour.setToolTipText(
        LanguageProperties.getString(
            LanguageProperties.TOOLBARS_BUNDLE,
            "UIToolBarFormatLink.selectLinkColour")); //$NON-NLS-1$
    txtLinkColour.setEnabled(false);
    txtLinkColour.addMouseListener(
        new MouseAdapter() {
          public void mouseClicked(MouseEvent e) {
            int clickCount = e.getClickCount();
            if (clickCount == 1 && txtLinkColour.isEnabled()) {
              onUpdateLinkColour(linkColourPanel.getBackground().getRGB());
            }
          }
        });
    linkColourPanel.add(txtLinkColour, BorderLayout.CENTER);

    GridBagConstraints con = new GridBagConstraints();
    con.fill = GridBagConstraints.NONE;
    con.anchor = GridBagConstraints.CENTER;
    grid.addLayoutComponent(linkColourPanel, con);
    linkPanel.add(linkColourPanel);

    btLinkColour = new UIImageButton(UIImages.get(RIGHT_ARROW_ICON));
    btLinkColour.addMouseListener(
        new MouseAdapter() {
          public void mouseClicked(MouseEvent e) {
            int clickCount = e.getClickCount();
            if (clickCount == 1 && txtLinkColour.isEnabled()) {
              if (oColorChooserDialog != null) {
                oColorChooserDialog.setColour(selectedLinkColour);
              } else {
                oColorChooserDialog =
                    new UIColorChooserDialog(ProjectCompendium.APP, selectedLinkColour);
              }
              oColorChooserDialog.setVisible(true);
              Color oColour = oColorChooserDialog.getColour();
              oColorChooserDialog.setVisible(false);
              if (oColour != null) {
                linkColourPanel.setBackground(oColour);
                onUpdateLinkColour(oColour.getRGB());
              }
            }
          }
        });
    linkPanel.add(btLinkColour);

    label = new JLabel(" "); // $NON-NLS-1$
    GridBagConstraints con4 = new GridBagConstraints();
    con4.fill = GridBagConstraints.NONE;
    con4.anchor = GridBagConstraints.CENTER;
    grid.addLayoutComponent(label, con4);
    linkPanel.add(label);

    tbrToolBar.add(linkPanel);
    CSH.setHelpIDString(txtLinkColour, "toolbars.formatlink"); // $NON-NLS-1$

    tbrToolBar.add(createWeightChoiceBox());
    tbrToolBar.add(createArrowChoiceBox());
    tbrToolBar.add(createLinkStyleChoiceBox());
    tbrToolBar.add(createLinkDashedChoiceBox());

    return tbrToolBar;
  }