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public class

BasicDesktopPaneUI

extends DesktopPaneUI
java.lang.Object
   ↳ javax.swing.plaf.ComponentUI
     ↳ javax.swing.plaf.DesktopPaneUI
       ↳ javax.swing.plaf.basic.BasicDesktopPaneUI
Known Direct Subclasses

Class Overview

Basic L&F for a desktop.

Summary

Nested Classes
class BasicDesktopPaneUI.CloseAction Handles closing an internal frame. 
class BasicDesktopPaneUI.MaximizeAction Handles maximizing an internal frame. 
class BasicDesktopPaneUI.MinimizeAction Handles minimizing an internal frame. 
class BasicDesktopPaneUI.NavigateAction Handles navigating to the next internal frame. 
class BasicDesktopPaneUI.OpenAction Handles restoring a minimized or maximized internal frame. 
Fields
protected KeyStroke closeKey This field is deprecated. As of 1.3.
protected JDesktopPane desktop
protected DesktopManager desktopManager
protected KeyStroke maximizeKey This field is deprecated. As of 1.3.
protected KeyStroke minimizeKey This field is deprecated. As of 1.3.
protected KeyStroke navigateKey This field is deprecated. As of 1.3.
protected KeyStroke navigateKey2 This field is deprecated. As of 1.3.
Public Constructors
BasicDesktopPaneUI()
Public Methods
static ComponentUI createUI(JComponent c)
Dimension getMaximumSize(JComponent c)
Returns the specified component's maximum size appropriate for the look and feel.
Dimension getMinimumSize(JComponent c)
Returns the specified component's minimum size appropriate for the look and feel.
Dimension getPreferredSize(JComponent c)
Returns the specified component's preferred size appropriate for the look and feel.
void installUI(JComponent c)
Configures the specified component appropriate for the look and feel.
void paint(Graphics g, JComponent c)
Paints the specified component appropriate for the look and feel.
void uninstallUI(JComponent c)
Reverses configuration which was done on the specified component during installUI.
Protected Methods
PropertyChangeListener createPropertyChangeListener()
Returns the PropertyChangeListener to install on the JDesktopPane.
void installDefaults()
void installDesktopManager()
void installKeyboardActions()
void installListeners()
Installs the PropertyChangeListener returned from createPropertyChangeListener on the JDesktopPane.
void registerKeyboardActions()
void uninstallDefaults()
void uninstallDesktopManager()
void uninstallKeyboardActions()
void uninstallListeners()
Uninstalls the PropertyChangeListener returned from createPropertyChangeListener from the JDesktopPane.
void unregisterKeyboardActions()
[Expand]
Inherited Methods
From class javax.swing.plaf.ComponentUI
From class java.lang.Object

Fields

protected KeyStroke closeKey

This field is deprecated.
As of 1.3.

As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by the LookAndFeel, please refer to the key bindings specification for further details.

protected JDesktopPane desktop

protected DesktopManager desktopManager

protected KeyStroke maximizeKey

This field is deprecated.
As of 1.3.

As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by the LookAndFeel, please refer to the key bindings specification for further details.

protected KeyStroke minimizeKey

This field is deprecated.
As of 1.3.

As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by the LookAndFeel, please refer to the key bindings specification for further details.

protected KeyStroke navigateKey

This field is deprecated.
As of 1.3.

As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by the LookAndFeel, please refer to the key bindings specification for further details.

protected KeyStroke navigateKey2

This field is deprecated.
As of 1.3.

As of Java 2 platform v1.3 this previously undocumented field is no longer used. Key bindings are now defined by the LookAndFeel, please refer to the key bindings specification for further details.

Public Constructors

public BasicDesktopPaneUI ()

Public Methods

public static ComponentUI createUI (JComponent c)

public Dimension getMaximumSize (JComponent c)

Returns the specified component's maximum size appropriate for the look and feel. If null is returned, the maximum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

Parameters
c the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
Returns
  • a Dimension object or null

public Dimension getMinimumSize (JComponent c)

Returns the specified component's minimum size appropriate for the look and feel. If null is returned, the minimum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

Parameters
c the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
Returns
  • a Dimension object or null

public Dimension getPreferredSize (JComponent c)

Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.

Parameters
c the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

public void installUI (JComponent c)

Configures the specified component appropriate for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:

  1. Install any default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should not be overridden.
  2. Install a LayoutManager on the component if necessary.
  3. Create/add any required sub-components to the component.
  4. Create/install event listeners on the component.
  5. Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
  6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
  7. Initialize any appropriate instance data.

Parameters
c the component where this UI delegate is being installed

public void paint (Graphics g, JComponent c)

Paints the specified component appropriate for the look and feel. This method is invoked from the ComponentUI.update method when the specified component is being painted. Subclasses should override this method and use the specified Graphics object to render the content of the component.

Parameters
g the Graphics context in which to paint
c the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

public void uninstallUI (JComponent c)

Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:

  1. Remove any UI-set borders from the component.
  2. Remove any UI-set layout managers on the component.
  3. Remove any UI-added sub-components from the component.
  4. Remove any UI-added event/property listeners from the component.
  5. Remove any UI-installed keyboard UI from the component.
  6. Nullify any allocated instance data objects to allow for GC.

Parameters
c the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

Protected Methods

protected PropertyChangeListener createPropertyChangeListener ()

Returns the PropertyChangeListener to install on the JDesktopPane.

Returns
  • The PropertyChangeListener that will be added to track changes in the desktop pane.

protected void installDefaults ()

protected void installDesktopManager ()

protected void installKeyboardActions ()

protected void installListeners ()

Installs the PropertyChangeListener returned from createPropertyChangeListener on the JDesktopPane.

See Also

protected void registerKeyboardActions ()

protected void uninstallDefaults ()

protected void uninstallDesktopManager ()

protected void uninstallKeyboardActions ()

protected void uninstallListeners ()

Uninstalls the PropertyChangeListener returned from createPropertyChangeListener from the JDesktopPane.

See Also

protected void unregisterKeyboardActions ()