org.gudy.azureus2.ui.swt.components.shell
Class ShellManager

java.lang.Object
  org.gudy.azureus2.ui.swt.components.shell.ShellManager

public class ShellManager
extends java.lang.Object

ShellManager provides a logical grouping for a set of shells

Note: This class must be used from the SWT display thread

Version:

1.0

Author:

James Yeh

See Also:

org.eclipse.jface.window.WindowManager

Constructor Summary

ShellManager()

Method Summary

void	addWindow(org.eclipse.swt.widgets.Shell shell) Adds a shell to the shell manager.
void	addWindowAddedListener(org.eclipse.swt.widgets.Listener listener) Adds a listener that will be invoked when a shell has been added to the ShellManager
void	addWindowRemovedListener(org.eclipse.swt.widgets.Listener listener) Adds a listener that will be invoked when a shell has been removed from the ShellManager
protected java.util.Collection	getManagedShellSet() Gets the set of managed shells
int	getSize() Gets the number of shells the ShellManager manages
protected org.eclipse.swt.widgets.Event	getSWTEvent(org.eclipse.swt.widgets.Shell shell) Gets a generated SWT Event based on the shell
java.util.Iterator<org.eclipse.swt.widgets.Shell>	getWindows() Gets the shells managed by the manager as an Iterator
boolean	isEmpty() Gets whether the ShellManager manages no shells
protected void	notifyAddListeners(org.eclipse.swt.widgets.Shell sender) Notifies the WindowAddedListener handlers
protected void	notifyRemoveListeners(org.eclipse.swt.widgets.Shell sender) Notifies the WindowRemovedListener handlers
void	performForShells(org.eclipse.swt.widgets.Listener command) Invokes the handleEvent method specified by the SWT listener for each managed shell
void	removeWindow(org.eclipse.swt.widgets.Shell shell) Removes a shell from the shell manager
void	removeWindowAddedListener(org.eclipse.swt.widgets.Listener listener) Removes a listener that will be invoked when a shell has been added to the ShellManager
void	removeWindowRemovedListener(org.eclipse.swt.widgets.Listener listener) Removes a listener that will be invoked when a shell has been removed from the ShellManager
static ShellManager	sharedManager() Gets the application's shared shell manager

Methods inherited from class java.lang.Object

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

Constructor Detail

ShellManager

public ShellManager()

Method Detail

sharedManager

public static final ShellManager sharedManager()

Gets the application's shared shell manager

This ShellManager has no bearing on other ShellManager instances

Note: This method must be invoked by the SWT display thread

Returns:

addWindow

public final void addWindow(org.eclipse.swt.widgets.Shell shell)

Adds a shell to the shell manager. If the shell is already managed, it is not added again.

Note: This method must be invoked by the SWT display thread

Parameters:

shell - A SWT Shell

removeWindow

public final void removeWindow(org.eclipse.swt.widgets.Shell shell)

Removes a shell from the shell manager

Note: This method must be invoked by the SWT display thread

Parameters:

shell - A SWT Shell

getWindows

public final java.util.Iterator<org.eclipse.swt.widgets.Shell> getWindows()

Gets the shells managed by the manager as an Iterator

The order in which the shells were added are retained.

Note: This method must be invoked by the SWT display thread

Returns:

The iterator

isEmpty

public final boolean isEmpty()

Gets whether the ShellManager manages no shells

Returns:

True if ShellManager is empty

getSize

public final int getSize()

Gets the number of shells the ShellManager manages

Returns:

The number

performForShells

public final void performForShells(org.eclipse.swt.widgets.Listener command)

Invokes the handleEvent method specified by the SWT listener for each managed shell

The event's widget is set to the reference of the shell invoking it

Parameters:

command - A command implemented as a SWT Listener

getManagedShellSet

protected final java.util.Collection getManagedShellSet()

Gets the set of managed shells

Returns:

The set

addWindowAddedListener

public final void addWindowAddedListener(org.eclipse.swt.widgets.Listener listener)

Adds a listener that will be invoked when a shell has been added to the ShellManager

The listener and the shell will automatically be removed when the shell is disposed

Parameters:

listener - A SWT Listener

removeWindowAddedListener

public final void removeWindowAddedListener(org.eclipse.swt.widgets.Listener listener)

Removes a listener that will be invoked when a shell has been added to the ShellManager

Parameters:

listener - A SWT Listener

addWindowRemovedListener

public final void addWindowRemovedListener(org.eclipse.swt.widgets.Listener listener)

Adds a listener that will be invoked when a shell has been removed from the ShellManager

Parameters:

listener - A SWT Listener

removeWindowRemovedListener

public final void removeWindowRemovedListener(org.eclipse.swt.widgets.Listener listener)

Removes a listener that will be invoked when a shell has been removed from the ShellManager

Parameters:

listener - A SWT Listener

notifyAddListeners

protected final void notifyAddListeners(org.eclipse.swt.widgets.Shell sender)

Notifies the WindowAddedListener handlers

Parameters:

sender - A SWT shell that "sends" the events

notifyRemoveListeners

protected final void notifyRemoveListeners(org.eclipse.swt.widgets.Shell sender)

Notifies the WindowRemovedListener handlers

Parameters:

sender - A SWT shell that "sends" the events

getSWTEvent

protected org.eclipse.swt.widgets.Event getSWTEvent(org.eclipse.swt.widgets.Shell shell)

Gets a generated SWT Event based on the shell

The widget field of the event should be set to the shell

Parameters:

shell - A SWT Shell

Returns:

The event