jahuwaldt.swing

Class JButtonGroup

java.lang.Object

javax.swing.ButtonGroup

jahuwaldt.swing.JButtonGroup

All Implemented Interfaces:

java.io.Serializable

public class JButtonGroup
extends javax.swing.ButtonGroup

Extends javax.swing.ButtonGroup to provide methods that allow working with button references instead of button models. Modified by Joseph A. Huwaldt, Date: September 16, 2012

Version:

1.0 April 2003

Author:

Daniel Tofan

See Also:

ButtonGroup, Serialized Form

Constructor Summary

Constructors

Constructor and Description
JButtonGroup() Creates an empty JButtonGroup
JButtonGroup(javax.swing.AbstractButton[] buttons) Creates a JButtonGroup object from an array of buttons and adds the buttons to the group No button will be selected initially.

Method Summary

Modifier and Type	Method and Description
void	add(javax.swing.AbstractButton button) Adds a button to the group
void	add(javax.swing.AbstractButton[] buttons) Adds an array of buttons to the group
boolean	contains(javax.swing.AbstractButton button) Checks whether the group contains the given button
javax.swing.AbstractButton	getButton(javax.swing.ButtonModel model) Returns the AbstractButton whose ButtonModel is given.
java.util.List<javax.swing.AbstractButton>	getButtons() Returns the buttons in the group as a List
javax.swing.AbstractButton	getPreviousSelected() Returns the button that was selected prior to the currently selected button in the group.
javax.swing.AbstractButton	getSelected() Returns the selected button in the group.
boolean	isEnabled() Returns true if any button in this button group is enabled.
boolean	isSelected(javax.swing.AbstractButton button) Returns whether the button is selected
void	remove(javax.swing.AbstractButton button) Removes a button from the group
void	remove(javax.swing.AbstractButton[] buttons) Removes all the buttons in the array from the group
void	setEnabled(boolean flag) Enables or disables all the buttons in this button group.
void	setSelected(javax.swing.AbstractButton button, boolean selected) Sets the selected button in the group Only one button in the group can be selected
void	setSelected(javax.swing.ButtonModel model, boolean selected) Sets the selected button model in the group

Methods inherited from class javax.swing.ButtonGroup

clearSelection, getButtonCount, getElements, getSelection, isSelected

Methods inherited from class java.lang.Object

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

Constructor Detail

JButtonGroup

public JButtonGroup()

Creates an empty JButtonGroup

JButtonGroup

public JButtonGroup(javax.swing.AbstractButton[] buttons)

Creates a JButtonGroup object from an array of buttons and adds the buttons to the group No button will be selected initially.

Parameters:

buttons - an array of AbstractButtons

Method Detail

add

public void add(javax.swing.AbstractButton button)

Adds a button to the group

Overrides:

add in class javax.swing.ButtonGroup

Parameters:

button - an AbstractButton reference

add

public final void add(javax.swing.AbstractButton[] buttons)

Adds an array of buttons to the group

Parameters:

buttons - an array of AbstractButtons

remove

public void remove(javax.swing.AbstractButton button)

Removes a button from the group

Overrides:

remove in class javax.swing.ButtonGroup

Parameters:

button - the button to be removed

remove

public void remove(javax.swing.AbstractButton[] buttons)

Removes all the buttons in the array from the group

Parameters:

buttons - an array of AbstractButtons

setSelected

public void setSelected(javax.swing.AbstractButton button,
                        boolean selected)

Sets the selected button in the group Only one button in the group can be selected

Parameters:

button - an AbstractButton reference

selected - an boolean representing the selection state of the button

setSelected

public void setSelected(javax.swing.ButtonModel model,
                        boolean selected)

Sets the selected button model in the group

Overrides:

setSelected in class javax.swing.ButtonGroup

Parameters:

model - a ButtonModel reference

selected - an boolean representing the selection state of the button

getButton

public javax.swing.AbstractButton getButton(javax.swing.ButtonModel model)

Returns the AbstractButton whose ButtonModel is given. If the model does not belong to a button in the group, returns null.

Parameters:

model - a ButtonModel that should belong to a button in the group

Returns:

an AbstractButton reference whose model is model if the button belongs to the group, nullotherwise

getSelected

public javax.swing.AbstractButton getSelected()

Returns the selected button in the group.

Returns:

a reference to the currently selected button in the group or null if no button is selected

getPreviousSelected

public javax.swing.AbstractButton getPreviousSelected()

Returns the button that was selected prior to the currently selected button in the group.

Returns:

a reference to the button selected prior to the currently selected button in the group or null if no button was selected prior to the currently selected button.

isSelected

public boolean isSelected(javax.swing.AbstractButton button)

Returns whether the button is selected

Parameters:

button - an AbstractButton reference

Returns:

true if the button is selected, false otherwise

getButtons

public java.util.List<javax.swing.AbstractButton> getButtons()

Returns the buttons in the group as a List

Returns:

a List containing the buttons in the group, in the order they were added to the group

contains

public boolean contains(javax.swing.AbstractButton button)

Checks whether the group contains the given button

Returns:

true if the button is contained in the group, false otherwise

setEnabled

public void setEnabled(boolean flag)

Enables or disables all the buttons in this button group.

isEnabled

public boolean isEnabled()

Returns true if any button in this button group is enabled.