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BasicDesktopIconUI (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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javax.swing.plaf.basic
Class BasicDesktopIconUI

java.lang.Object
  extended by javax.swing.plaf.ComponentUI
      extended by javax.swing.plaf.DesktopIconUI
          extended by javax.swing.plaf.basic.BasicDesktopIconUI
Direct Known Subclasses:
MetalDesktopIconUI
public class BasicDesktopIconUI
extends DesktopIconUI

Basic L&F for a minimized window on a desktop.

Nested Class Summary
 class BasicDesktopIconUI.MouseInputHandler
          Listens for mouse movements and acts on them.
 
Field Summary
protected  JInternalFrame.JDesktopIcon desktopIcon
           
protected  JInternalFrame frame
           
protected  JComponent iconPane
          The title pane component used in the desktop icon.
 
Constructor Summary
BasicDesktopIconUI()
           
 
Method Summary
protected  MouseInputListener createMouseInputListener()
           
static ComponentUI createUI(JComponent c)
           
 void deiconize()
           
 Insets getInsets(JComponent c)
           
 Dimension getMaximumSize(JComponent c)
          Desktop icons can not be resized.
 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.
protected  void installComponents()
           
protected  void installDefaults()
           
protected  void installListeners()
           
 void installUI(JComponent c)
          Configures the specified component appropriate for the look and feel.
protected  void uninstallComponents()
           
protected  void uninstallDefaults()
           
protected  void uninstallListeners()
           
 void uninstallUI(JComponent c)
          Reverses configuration which was done on the specified component during installUI.
 
Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, paint, update
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

desktopIcon

protected JInternalFrame.JDesktopIcon desktopIcon

frame

protected JInternalFrame frame

iconPane

protected JComponent iconPane
The title pane component used in the desktop icon.

Since:
1.5
Constructor Detail

BasicDesktopIconUI

public BasicDesktopIconUI()
Method Detail

createUI

public static ComponentUI createUI(JComponent c)

installUI

public void installUI(JComponent c)
Description copied from class: ComponentUI
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.

Overrides:
installUI in class ComponentUI
Parameters:
c - the component where this UI delegate is being installed
See Also:
ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

uninstallUI

public void uninstallUI(JComponent c)
Description copied from class: ComponentUI
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.

Overrides:
uninstallUI in class ComponentUI
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
See Also:
ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

installComponents

protected void installComponents()

uninstallComponents

protected void uninstallComponents()

installListeners

protected void installListeners()

uninstallListeners

protected void uninstallListeners()

installDefaults

protected void installDefaults()

uninstallDefaults

protected void uninstallDefaults()

createMouseInputListener

protected MouseInputListener createMouseInputListener()

getPreferredSize

public Dimension getPreferredSize(JComponent c)
Description copied from class: ComponentUI
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.

Overrides:
getPreferredSize in class ComponentUI
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
See Also:
JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)

getMinimumSize

public Dimension getMinimumSize(JComponent c)
Description copied from class: ComponentUI
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.

Overrides:
getMinimumSize in class ComponentUI
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
See Also:
JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)

getMaximumSize

public Dimension getMaximumSize(JComponent c)
Desktop icons can not be resized. Therefore, we should always return the minimum size of the desktop icon.

Overrides:
getMaximumSize in class ComponentUI
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
See Also:
getMinimumSize(javax.swing.JComponent)

getInsets

public Insets getInsets(JComponent c)

deiconize

public void deiconize()
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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