com.klg.jclass.table
Class FocusManagerNew

java.lang.Object
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  +--com.klg.jclass.table.FocusManager
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        +--com.klg.jclass.table.FocusManagerNew

All Implemented Interfaces:

FocusModel, Serializable

public class FocusManagerNew

extends FocusManager

A FocusManager object for JDK 1.4 and later

See Also:

Serialized Form

Field Summary

Fields inherited from class com.klg.jclass.table.FocusManager

componentHandler, editTraverseHandler, table

Method Summary

com.klg.jclass.table.ComponentModel	createDefaultComponentModel() Creates the default component handler.
com.klg.jclass.table.EditTraverseHandler	createDefaultEditTraverseHandler() Creates the default edit handler for JDKs 1.4 or later
Component	findFocusOwner(Component c) Return the child Component of the specified Component that is the focus owner, if any.
void	handleControlTab(boolean isShift, boolean doCommit) The user has hit CTRL-TAB or CTRL-SHIFT-TAB.
boolean	isFocusTraversable(Component c) Can this component receive the focus
boolean	requestFocus() Gets table to request focus.
boolean	requestFocus(Component c) Gets the passed in component to request focus.
void	setTable(com.klg.jclass.table.JCTable table) Set the table that uses this focus manager
void	transferFocusCycle() In JDK 1.4 or later, we need to make sure that when table has the focus that we are within table's current focus cycle rather than any focus cycle of a container that table happens to be in.

Methods inherited from class com.klg.jclass.table.FocusManager

createDefaultComponentModel, getComponentModel, getEditTraverseHandler, getTable, setComponentModel, setEditTraverseHandler

Methods inherited from class java.lang.Object

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

Method Detail

setTable

public void setTable(com.klg.jclass.table.JCTable table)

Set the table that uses this focus manager

Specified by:

setTable in interface FocusModel

Overrides:

setTable in class FocusManager

Parameters:

table - The new table that uses this focus manager

requestFocus

public boolean requestFocus(Component c)

Gets the passed in component to request focus.

Specified by:

requestFocus in interface FocusModel

Overrides:

requestFocus in class FocusManager

Parameters:

c - The component who will request the focus.

Returns:

Whether the request will fail or most likely succeed (it only fails under an extraordinary event such as a disposal of the Component's peer).

requestFocus

public boolean requestFocus()

Gets table to request focus.

Specified by:

requestFocus in interface FocusModel

Overrides:

requestFocus in class FocusManager

Returns:

Whether the request will fail or most likely succeed (it only fails under an extraordinary event such as a disposal of the Component's peer).

createDefaultEditTraverseHandler

public com.klg.jclass.table.EditTraverseHandler createDefaultEditTraverseHandler()

Creates the default edit handler for JDKs 1.4 or later

Specified by:

createDefaultEditTraverseHandler in class FocusManager

Returns:

The newly created edit handler for a given model

createDefaultComponentModel

public com.klg.jclass.table.ComponentModel createDefaultComponentModel()

Creates the default component handler.

Specified by:

createDefaultComponentModel in interface FocusModel

Specified by:

createDefaultComponentModel in class FocusManager

Returns:

The newly created component handler for pre JDK1.4

isFocusTraversable

public boolean isFocusTraversable(Component c)

Can this component receive the focus

Specified by:

isFocusTraversable in interface FocusModel

Specified by:

isFocusTraversable in class FocusManager

Parameters:

c - The component whose focusability is in question

Returns:

Whether the component can receive focus

findFocusOwner

public Component findFocusOwner(Component c)

Return the child Component of the specified Component that is the focus owner, if any.

Specified by:

findFocusOwner in interface FocusModel

Specified by:

findFocusOwner in class FocusManager

Parameters:

c - the root of the Component hierarchy to search for the focus owner

Returns:

the focus owner, or null if there is no focus owner, or if the focus owner is not c, or a descendant of c

handleControlTab

public void handleControlTab(boolean isShift,
                             boolean doCommit)

The user has hit CTRL-TAB or CTRL-SHIFT-TAB. We need to go up one cycle and tab out of table to the next or previous component.

Specified by:

handleControlTab in interface FocusModel

Specified by:

handleControlTab in class FocusManager

Parameters:

isShift - True if the shift key has been hit.

doCommit - Do a commit edit before traversing. This is needed the user is editing a cell when he/she hits CTRL-TAB or CTRL-SHIFT-TAB.

transferFocusCycle

public void transferFocusCycle()

In JDK 1.4 or later, we need to make sure that when table has the focus that we are within table's current focus cycle rather than any focus cycle of a container that table happens to be in.

Specified by:

transferFocusCycle in interface FocusModel

Specified by:

transferFocusCycle in class FocusManager