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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class DefaultDesktopManager - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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javax.swing
Class DefaultDesktopManager

java.lang.Object
  |
  +--javax.swing.DefaultDesktopManager

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public class DefaultDesktopManager

extends Object

implements DesktopManager, Serializable

This is an implementaion of the DesktopManager. It currently implements a the basic behaviors for managing JInternalFrames in an arbitrary parent. JInternalFrames that are not children of a JDesktop will use this component to handle their desktop-like actions.

See Also:

JDesktopPane, JInternalFrame, Serialized Form

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Constructor Summary

DefaultDesktopManager()

 

Method Summary
void	activateFrame(JInternalFrame f)           This will activate f moving it to the front.
void	beginDraggingFrame(JComponent f)           This method is normally called when the user has indicated that they will begin dragging a component around.
void	beginResizingFrame(JComponent f, int direction)           This methods is normally called when the user has indicated that they will begin resizing the frame.
void	closeFrame(JInternalFrame f)           Removes the frame, and if necessary the desktopIcon, from it's parent.
void	deactivateFrame(JInternalFrame f)           Generally, indicate that this frame has lost focus.
void	deiconifyFrame(JInternalFrame f)           Removes the desktopIcon from it's parent and adds it's frame to the parent.
void	dragFrame(JComponent f, int newX, int newY)           Moves the visible location of the frame being dragged to the location specified.
void	endDraggingFrame(JComponent f)           This method signals the end of the dragging session.
void	endResizingFrame(JComponent f)           This method signals the end of the resize session.
protected  Rectangle	getBoundsForIconOf(JInternalFrame f)           The iconifyFrame() code calls this to determine the proper bounds for the desktopIcon.
protected  Rectangle	getPreviousBounds(JInternalFrame f)
void	iconifyFrame(JInternalFrame f)           Removes the frame from it's parent and adds it's desktopIcon to the parent.
void	maximizeFrame(JInternalFrame f)           Resizes the frame to fill it's parents bounds.
void	minimizeFrame(JInternalFrame f)           Restores the frame back to it's size and position prior to a maximizeFrame() call.
void	openFrame(JInternalFrame f)           Normally this method will not be called.
protected  void	removeIconFor(JInternalFrame f)           Convience method to remove the desktopIcon of f is necessary.
void	resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight)           Calls setBoundsForFrame() with the new values.
void	setBoundsForFrame(JComponent f, int newX, int newY, int newWidth, int newHeight)           This moves the JComponent and repaints the damaged areas.
protected  void	setPreviousBounds(JInternalFrame f, Rectangle r)           Stores the bounds of the component just before a maximize call.
protected  void	setWasIcon(JInternalFrame f, Boolean value)           Sets that the component has been iconized and the bounds of the desktopIcon are valid.
protected  boolean	wasIcon(JInternalFrame f)

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

DefaultDesktopManager

public DefaultDesktopManager()

Method Detail

openFrame

public void openFrame(JInternalFrame f)

Normally this method will not be called. If it is, it try to determine the appropriate parent from the desktopIcon of the frame. Will remove the desktopIcon from it's parent if it successfully adds the frame.

Specified by:

openFrame in interface DesktopManager

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closeFrame

public void closeFrame(JInternalFrame f)

Removes the frame, and if necessary the desktopIcon, from it's parent.

Specified by:

closeFrame in interface DesktopManager

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maximizeFrame

public void maximizeFrame(JInternalFrame f)

Resizes the frame to fill it's parents bounds.

Specified by:

maximizeFrame in interface DesktopManager

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minimizeFrame

public void minimizeFrame(JInternalFrame f)

Restores the frame back to it's size and position prior to a maximizeFrame() call.

Specified by:

minimizeFrame in interface DesktopManager

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iconifyFrame

public void iconifyFrame(JInternalFrame f)

Removes the frame from it's parent and adds it's desktopIcon to the parent.

Specified by:

iconifyFrame in interface DesktopManager

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deiconifyFrame

public void deiconifyFrame(JInternalFrame f)

Removes the desktopIcon from it's parent and adds it's frame to the parent.

Specified by:

deiconifyFrame in interface DesktopManager

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activateFrame

public void activateFrame(JInternalFrame f)

This will activate f moving it to the front. It will set the current active frame (if any) IS_SELECTED_PROPERTY to false. There can be only one active frame across all Layers.

Specified by:

activateFrame in interface DesktopManager

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deactivateFrame

public void deactivateFrame(JInternalFrame f)

Description copied from interface: DesktopManager

Generally, indicate that this frame has lost focus. This is usually called after the JInternalFrame's IS_SELECTED_PROPERTY has been set to false.

Specified by:

deactivateFrame in interface DesktopManager

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beginDraggingFrame

public void beginDraggingFrame(JComponent f)

Description copied from interface: DesktopManager

This method is normally called when the user has indicated that they will begin dragging a component around. This method should be called prior to any dragFrame() calls to allow the DesktopManager to prepare any necessary state. Normally f will be a JInternalFrame.

Specified by:

beginDraggingFrame in interface DesktopManager

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dragFrame

public void dragFrame(JComponent f,
                      int newX,
                      int newY)

Moves the visible location of the frame being dragged to the location specified. The means by which this occurs can vary depending on the dragging algorithm being used. The actual logical location of the frame might not change until endDraggingFrame is called.

Specified by:

dragFrame in interface DesktopManager

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endDraggingFrame

public void endDraggingFrame(JComponent f)

Description copied from interface: DesktopManager

This method signals the end of the dragging session. Any state maintained by the DesktopManager can be removed here. Normally f will be a JInternalFrame.

Specified by:

endDraggingFrame in interface DesktopManager

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beginResizingFrame

public void beginResizingFrame(JComponent f,
                               int direction)

Description copied from interface: DesktopManager

This methods is normally called when the user has indicated that they will begin resizing the frame. This method should be called prior to any resizeFrame() calls to allow the DesktopManager to prepare any necessary state. Normally f will be a JInternalFrame.

Specified by:

beginResizingFrame in interface DesktopManager

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resizeFrame

public void resizeFrame(JComponent f,
                        int newX,
                        int newY,
                        int newWidth,
                        int newHeight)

Calls setBoundsForFrame() with the new values.

Specified by:

resizeFrame in interface DesktopManager

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endResizingFrame

public void endResizingFrame(JComponent f)

Description copied from interface: DesktopManager

This method signals the end of the resize session. Any state maintained by the DesktopManager can be removed here. Normally f will be a JInternalFrame.

Specified by:

endResizingFrame in interface DesktopManager

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setBoundsForFrame

public void setBoundsForFrame(JComponent f,
                              int newX,
                              int newY,
                              int newWidth,
                              int newHeight)

This moves the JComponent and repaints the damaged areas.

Specified by:

setBoundsForFrame in interface DesktopManager

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removeIconFor

protected void removeIconFor(JInternalFrame f)

Convience method to remove the desktopIcon of f is necessary.

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getBoundsForIconOf

protected Rectangle getBoundsForIconOf(JInternalFrame f)

The iconifyFrame() code calls this to determine the proper bounds for the desktopIcon.

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setPreviousBounds

protected void setPreviousBounds(JInternalFrame f,
                                 Rectangle r)

Stores the bounds of the component just before a maximize call.

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getPreviousBounds

protected Rectangle getPreviousBounds(JInternalFrame f)

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setWasIcon

protected void setWasIcon(JInternalFrame f,
                          Boolean value)

Sets that the component has been iconized and the bounds of the desktopIcon are valid.

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wasIcon

protected boolean wasIcon(JInternalFrame f)

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