Class BasicTreeUI.TreePageAction

java.lang.Object

javax.swing.AbstractAction

javax.swing.plaf.basic.BasicTreeUI.TreePageAction

All Implemented Interfaces:: ActionListener, Serializable, Cloneable, EventListener, Action

Enclosing class:: BasicTreeUI

public class BasicTreeUI.TreePageAction extends AbstractAction

TreePageAction handles page up and page down events.

Field Summary

Modifier and Type	Field	Description
`protected int`	`direction`	Specifies the direction to adjust the selection by.

Fields declared in class AbstractAction

changeSupport, enabled

Modifier and Type	Field	Description
`protected SwingPropertyChangeSupport`	`changeSupport`	If any `PropertyChangeListeners` have been registered, the `changeSupport` field describes them.
`protected boolean`	`enabled`	Specifies whether action is enabled; the default is true.

Fields declared in interface Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Modifier and Type	Field	Description
`static final String`	`ACCELERATOR_KEY`	The key used for storing a `KeyStroke` to be used as the accelerator for the action.
`static final String`	`ACTION_COMMAND_KEY`	The key used to determine the command `String` for the `ActionEvent` that will be created when an `Action` is going to be notified as the result of residing in a `Keymap` associated with a `JComponent`.
`static final String`	`DEFAULT`	Not currently used.
`static final String`	`DISPLAYED_MNEMONIC_INDEX_KEY`	The key used for storing an `Integer` that corresponds to the index in the text (identified by the `NAME` property) that the decoration for a mnemonic should be rendered at.
`static final String`	`LARGE_ICON_KEY`	The key used for storing an `Icon`.
`static final String`	`LONG_DESCRIPTION`	The key used for storing a longer `String` description for the action, could be used for context-sensitive help.
`static final String`	`MNEMONIC_KEY`	The key used for storing an `Integer` that corresponds to one of the `KeyEvent` key codes.
`static final String`	`NAME`	The key used for storing the `String` name for the action, used for a menu or button.
`static final String`	`SELECTED_KEY`	The key used for storing a `Boolean` that corresponds to the selected state.
`static final String`	`SHORT_DESCRIPTION`	The key used for storing a short `String` description for the action, used for tooltip text.
`static final String`	`SMALL_ICON`	The key used for storing a small `Icon`, such as `ImageIcon`.

Constructor Summary

Constructor	Description
`TreePageAction(int direction, String name)`	Constructs a new instance of `TreePageAction`.

Method Summary

Modifier and Type	Method	Description
`void`	`actionPerformed(ActionEvent e)`	Invoked when an action occurs.

Methods declared in class AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Modifier and Type	Method	Description
`void`	`addPropertyChangeListener(PropertyChangeListener listener)`	Adds a `PropertyChangeListener` to the listener list.
`protected Object`	`clone()`	Clones the abstract action.
`protected void`	`firePropertyChange(String propertyName, Object oldValue, Object newValue)`	Supports reporting bound property changes.
`Object[]`	`getKeys()`	Returns an array of `Object`s which are keys for which values have been set for this `AbstractAction`, or `null` if no keys have values set.
`PropertyChangeListener[]`	`getPropertyChangeListeners()`	Returns an array of all the `PropertyChangeListener`s added to this AbstractAction with addPropertyChangeListener().
`Object`	`getValue(String key)`	Gets the `Object` associated with the specified key.
`boolean`	`isEnabled()`	Returns true if the action is enabled.
`void`	`putValue(String key, Object newValue)`	Sets the `Value` associated with the specified key.
`void`	`removePropertyChangeListener(PropertyChangeListener listener)`	Removes a `PropertyChangeListener` from the listener list.
`void`	`setEnabled(boolean newValue)`	Sets whether the `Action` is enabled.

Methods declared in class Object

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

Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Methods declared in interface Action

accept

Modifier and Type	Method	Description
`default boolean`	`accept(Object sender)`	Determines whether the action should be performed with the specified sender object.

Field Details

direction

protected int direction

Specifies the direction to adjust the selection by.

Constructor Details

TreePageAction

public TreePageAction(int direction, String name)

Constructs a new instance of TreePageAction.

Parameters:: direction - the direction; name - the name of action

Method Details

actionPerformed

public void actionPerformed(ActionEvent e)

Description copied from interface: ActionListener

Invoked when an action occurs.

Parameters:: e - the event to be processed

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