basictoolbarui.java

gcc的组建

	break;
      }

    int newOrientation = SwingConstants.HORIZONTAL;
    if ((aoc != -1)
        && ((aoc == SwingConstants.EAST) || (aoc == SwingConstants.WEST)))
      newOrientation = SwingConstants.VERTICAL;

    if (aoc != -1)
      {
	constraintBeforeFloating = constraint;
	lastGoodOrientation = newOrientation;
      }

    newParent.add(toolBar, constraint);

    setFloating(aoc == -1, null);
    toolBar.setOrientation(newOrientation);

    Insets insets = floatFrame.getInsets();
    Dimension dims = toolBar.getPreferredSize();
    p = dragWindow.getOffset();
    setFloatingLocation((position.x + origin.x) - p.x
                        - ((insets.left + insets.right) / 2),
                        (position.y + origin.y) - p.y
                        - ((insets.top + insets.bottom) / 2));

    if (aoc == -1)
      {
	floatFrame.pack();
	floatFrame.setSize(dims.width + insets.left + insets.right,
	                   dims.height + insets.top + insets.bottom);
	floatFrame.show();
      }

    newParent.invalidate();
    newParent.validate();
    newParent.repaint();
  }

  /**
   * This method returns the docking color.
   *
   * @return The docking color.
   */
  public Color getDockingColor()
  {
    return dockingColor;
  }

  /**
   * This method returns the Color which is displayed when over a floating
   * area.
   *
   * @return The color which is displayed when over a floating area.
   */
  public Color getFloatingColor()
  {
    return floatingColor;
  }

  /**
   * This method returns the maximum size of the given JComponent for this UI.
   *
   * @param c The JComponent to find the maximum size for.
   *
   * @return The maximum size for this UI.
   */
  public Dimension getMaximumSize(JComponent c)
  {
    return getPreferredSize(c);
  }

  /**
   * This method returns the minimum size of the given JComponent for this UI.
   *
   * @param c The JComponent to find a minimum size for.
   *
   * @return The minimum size for this UI.
   */
  public Dimension getMinimumSize(JComponent c)
  {
    return getPreferredSize(c);
  }

  /**
   * This method installs the needed components for the JToolBar.
   */
  protected void installComponents()
  {
    floatFrame = (Window) createFloatingWindow(toolBar);

    dragWindow = createDragWindow(toolBar);

    nonRolloverBorder = createNonRolloverBorder();
    rolloverBorder = createRolloverBorder();

    borders = new Hashtable();

    fillHashtable();
  }

  /**
   * This method installs the defaults as specified by the look and feel.
   */
  protected void installDefaults()
  {
    LookAndFeel.installBorder(toolBar, "ToolBar.border");
    LookAndFeel.installColorsAndFont(toolBar, "ToolBar.background",
                                     "ToolBar.foreground", "ToolBar.font");

    dockingBorderColor = UIManager.getColor("ToolBar.dockingForeground");
    dockingColor = UIManager.getColor("ToolBar.dockingBackground");

    floatingBorderColor = UIManager.getColor("ToolBar.floatingForeground");
    floatingColor = UIManager.getColor("ToolBar.floatingBackground");
    setRolloverBorders(toolBar.isRollover());
  }

  /**
   * This method installs the keyboard actions for the JToolBar as specified
   * by the look and feel.
   */
  protected void installKeyboardActions()
  {
    // FIXME: implement.
  }

  /**
   * This method installs listeners for the JToolBar.
   */
  protected void installListeners()
  {
    dockingListener = createDockingListener();
    toolBar.addMouseListener(dockingListener);
    toolBar.addMouseMotionListener(dockingListener);

    propertyListener = createPropertyListener();
    toolBar.addPropertyChangeListener(propertyListener);

    toolBarContListener = createToolBarContListener();
    toolBar.addContainerListener(toolBarContListener);

    windowListener = createFrameListener();
    floatFrame.addWindowListener(windowListener);

    toolBarFocusListener = createToolBarFocusListener();
    toolBar.addFocusListener(toolBarFocusListener);
  }

  /**
   * This method installs non rollover borders for each component inside the
   * given JComponent.
   *
   * @param c The JComponent whose children need to have non rollover borders
   *        installed.
   */
  protected void installNonRolloverBorders(JComponent c)
  {
    Component[] components = toolBar.getComponents();

    for (int i = 0; i < components.length; i++)
      setBorderToNonRollover(components[i]);
  }

  /**
   * This method installs normal (or their original) borders for each
   * component inside the given JComponent.
   *
   * @param c The JComponent whose children need to have their original
   *        borders installed.
   */
  protected void installNormalBorders(JComponent c)
  {
    Component[] components = toolBar.getComponents();

    for (int i = 0; i < components.length; i++)
      setBorderToNormal(components[i]);
  }

  /**
   * This method install rollover borders for each component inside the given
   * JComponent.
   *
   * @param c The JComponent whose children need to have rollover borders
   *        installed.
   */
  protected void installRolloverBorders(JComponent c)
  {
    Component[] components = toolBar.getComponents();

    for (int i = 0; i < components.length; i++)
      setBorderToRollover(components[i]);
  }

  /**
   * This method fills the borders hashtable with a list of components that
   * are JButtons and their borders.
   */
  private void fillHashtable()
  {
    Component[] c = toolBar.getComponents();

    for (int i = 0; i < c.length; i++)
      {
	if (c[i] instanceof JButton)
	  {
	    // Don't really care about anything other than JButtons
	    JButton b = (JButton) c[i];

	    if (b.getBorder() != null)
	      borders.put(b, b.getBorder());
	  }
      }
  }

  /**
   * This method installs the UI for the given JComponent.
   *
   * @param c The JComponent to install a UI for.
   */
  public void installUI(JComponent c)
  {
    super.installUI(c);

    if (c instanceof JToolBar)
      {
	toolBar = (JToolBar) c;
	toolBar.setOpaque(true);
	installDefaults();
	installComponents();
	installListeners();
	installKeyboardActions();
      }
  }

  /**
   * This method returns whether the JToolBar is floating.
   *
   * @return Whether the JToolBar is floating.
   */
  public boolean isFloating()
  {
    return floatFrame.isVisible();
  }

  /**
   * This method returns whether rollover borders have been set.
   *
   * @return Whether rollover borders have been set.
   */
  public boolean isRolloverBorders()
  {
    return toolBar.isRollover();
  }

  /**
   * This method navigates in the given direction giving focus to the next
   * component in the given direction.
   *
   * @param direction The direction to give focus to.
   */
  protected void navigateFocusedComp(int direction)
  {
    // FIXME: Implement.
  }

  /**
   * This method sets the border of the given component to a non rollover
   * border.
   *
   * @param c The Component whose border needs to be set.
   */
  protected void setBorderToNonRollover(Component c)
  {
    if (c instanceof JButton)
      {
	JButton b = (JButton) c;
	b.setRolloverEnabled(false);
	b.setBorder(nonRolloverBorder);
      }
  }

  /**
   * This method sets the border of the given component to its original value.
   *
   * @param c The Component whose border needs to be set.
   */
  protected void setBorderToNormal(Component c)
  {
    if (c instanceof JButton)
      {
	JButton b = (JButton) c;
	Border border = (Border) borders.get(b);
	b.setBorder(border);
      }
  }

  /**
   * This method sets the border of the given component to a rollover border.
   *
   * @param c The Component whose border needs to be set.
   */
  protected void setBorderToRollover(Component c)
  {
    if (c instanceof JButton)
      {
	JButton b = (JButton) c;
	b.setRolloverEnabled(true);
	b.setBorder(rolloverBorder);
      }
  }

  /**
   * This method sets the docking color.
   *
   * @param c The docking color.
   */
  public void setDockingColor(Color c)
  {
    dockingColor = c;
  }

  /**
   * This method sets the floating property for the JToolBar.
   *
   * @param b Whether the JToolBar is floating.
   * @param p FIXME
   */
  public void setFloating(boolean b, Point p)
  {
    // FIXME: use p for something. It's not location
    // since we already have setFloatingLocation.
    floatFrame.setVisible(b);
  }

  /**
   * This method sets the color displayed when the JToolBar is not in a
   * dockable area.
   *
   * @param c The floating color.
   */
  public void setFloatingColor(Color c)
  {
    floatingColor = c;
  }

  /**
   * This method sets the floating location of the JToolBar.
   *
   * @param x The x coordinate for the floating frame.
   * @param y The y coordinate for the floating frame.
   */
  public void setFloatingLocation(int x, int y)
  {
    // x,y are the coordinates of the new JFrame created to store the toolbar
    // XXX: The floating location is bogus is not floating.
    floatFrame.setLocation(x, y);
    floatFrame.invalidate();
    floatFrame.validate();
    floatFrame.repaint();
  }

  /**
   * This is a convenience method for changing the orientation of the
   * JToolBar.
   *
   * @param orientation The new orientation.
   */
  public void setOrientation(int orientation)
  {
    toolBar.setOrientation(orientation);
  }

  /**
   * This method changes the child components to have rollover borders if the
   * given parameter is true. Otherwise, the components are set to have non
   * rollover borders.
   *
   * @param rollover Whether the children will have rollover borders.
   */
  public void setRolloverBorders(boolean rollover)
  {
    if (rollover)
      installRolloverBorders(toolBar);
    else
      installNonRolloverBorders(toolBar);
  }

  /**
   * This method uninstall UI installed components from the JToolBar.
   */
  protected void uninstallComponents()
  {
    installNormalBorders(toolBar);
    borders = null;
    rolloverBorder = null;
    nonRolloverBorder = null;
    cachedBounds = null;

    floatFrame = null;
    dragWindow = null;
  }

  /**
   * This method removes the defaults installed by the Look and Feel.
   */
  protected void uninstallDefaults()
  {
    toolBar.setBackground(null);
    toolBar.setForeground(null);
    toolBar.setFont(null);

    dockingBorderColor = null;
    dockingColor = null;
    floatingBorderColor = null;
    floatingColor = null;
  }

  /**
   * This method uninstalls keyboard actions installed by the UI.
   */
  protected void uninstallKeyboardActions()
  {
    // FIXME: implement.
  }

  /**
   * This method uninstalls listeners installed by the UI.
   */
  protected void uninstallListeners()
  {
    toolBar.removeFocusListener(toolBarFocusListener);
    toolBarFocusListener = null;

    floatFrame.removeWindowListener(windowListener);
    windowListener = null;

    toolBar.removeContainerListener(toolBarContListener);
    toolBarContListener = null;

    toolBar.removeMouseMotionListener(dockingListener);
    toolBar.removeMouseListener(dockingListener);
    dockingListener = null;
  }

  /**
   * This method uninstalls the UI.
   *
   * @param c The JComponent that is having this UI removed.
   */
  public void uninstallUI(JComponent c)
  {
    uninstallKeyboardActions();
    uninstallListeners();
    uninstallComponents();
    uninstallDefaults();
    toolBar = null;
  }

  /**
   * This is the MouseHandler class that allows the user to drag the JToolBar
   * in and out of the parent and dock it if it can.
   */
  public class DockingListener implements MouseInputListener
  {
    /** Whether the JToolBar is being dragged. */
    protected boolean isDragging;

    /**
     * The origin point. This point is saved from the beginning press and is
     * used until the end of the drag session.
     */
    protected Point origin;

    /** The JToolBar being dragged. */
    protected JToolBar toolBar;

    /**
     * Creates a new DockingListener object.
     *