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src/java.desktop/share/classes/javax/swing/Action.java
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*** 27,43 ****
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
/**
! * The <code>Action</code> interface provides a useful extension to the
! * <code>ActionListener</code>
* interface in cases where the same functionality may be accessed by
* several controls.
* <p>
! * In addition to the <code>actionPerformed</code> method defined by the
! * <code>ActionListener</code> interface, this interface allows the
* application to define, in a single place:
* <ul>
* <li>One or more text strings that describe the function. These strings
* can be used, for example, to display the flyover text for a button
* or to set the text in a menu item.
--- 27,43 ----
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
/**
! * The {@code Action} interface provides a useful extension to the
! * {@code ActionListener}
* interface in cases where the same functionality may be accessed by
* several controls.
* <p>
! * In addition to the {@code actionPerformed} method defined by the
! * {@code ActionListener} interface, this interface allows the
* application to define, in a single place:
* <ul>
* <li>One or more text strings that describe the function. These strings
* can be used, for example, to display the flyover text for a button
* or to set the text in a menu item.
*** 51,179 ****
* then know to disable event generation for that item and to modify the
* display accordingly.
* </ul>
* <p>
* This interface can be added to an existing class or used to create an
! * adapter (typically, by subclassing <code>AbstractAction</code>).
! * The <code>Action</code> object
! * can then be added to multiple <code>Action</code>-aware containers
! * and connected to <code>Action</code>-capable
* components. The GUI controls can then be activated or
! * deactivated all at once by invoking the <code>Action</code> object's
! * <code>setEnabled</code> method.
* <p>
! * Note that <code>Action</code> implementations tend to be more expensive
! * in terms of storage than a typical <code>ActionListener</code>,
* which does not offer the benefits of centralized control of
* functionality and broadcast of property changes. For this reason,
! * you should take care to only use <code>Action</code>s where their benefits
! * are desired, and use simple <code>ActionListener</code>s elsewhere.
* <br>
*
! * <h3><a name="buttonActions"></a>Swing Components Supporting <code>Action</code></h3>
* <p>
! * Many of Swing's components have an <code>Action</code> property. When
! * an <code>Action</code> is set on a component, the following things
* happen:
* <ul>
! * <li>The <code>Action</code> is added as an <code>ActionListener</code> to
* the component.
* <li>The component configures some of its properties to match the
! * <code>Action</code>.
! * <li>The component installs a <code>PropertyChangeListener</code> on the
! * <code>Action</code> so that the component can change its properties
! * to reflect changes in the <code>Action</code>'s properties.
* </ul>
* <p>
* The following table describes the properties used by
! * <code>Swing</code> components that support <code>Actions</code>.
* In the table, <em>button</em> refers to any
! * <code>AbstractButton</code> subclass, which includes not only
! * <code>JButton</code> but also classes such as
! * <code>JMenuItem</code>. Unless otherwise stated, a
! * <code>null</code> property value in an <code>Action</code> (or a
! * <code>Action</code> that is <code>null</code>) results in the
! * button's corresponding property being set to <code>null</code>.
*
* <table border="1" cellpadding="1" cellspacing="0"
* summary="Supported Action properties">
* <tr valign="top" align="left">
* <th style="background-color:#CCCCFF" align="left">Component Property
* <th style="background-color:#CCCCFF" align="left">Components
* <th style="background-color:#CCCCFF" align="left">Action Key
* <th style="background-color:#CCCCFF" align="left">Notes
* <tr valign="top" align="left">
! * <td><b><code>enabled</code></b>
* <td>All
! * <td>The <code>isEnabled</code> method
* <td>
* <tr valign="top" align="left">
! * <td><b><code>toolTipText</code></b>
* <td>All
! * <td><code>SHORT_DESCRIPTION</code>
* <td>
* <tr valign="top" align="left">
! * <td><b><code>actionCommand</code></b>
* <td>All
! * <td><code>ACTION_COMMAND_KEY</code>
* <td>
* <tr valign="top" align="left">
! * <td><b><code>mnemonic</code></b>
* <td>All buttons
! * <td><code>MNEMONIC_KEY</code>
! * <td>A <code>null</code> value or <code>Action</code> results in the
! * button's <code>mnemonic</code> property being set to
! * <code>'\0'</code>.
* <tr valign="top" align="left">
! * <td><b><code>text</code></b>
* <td>All buttons
! * <td><code>NAME</code>
* <td>If you do not want the text of the button to mirror that
! * of the <code>Action</code>, set the property
! * <code>hideActionText</code> to <code>true</code>. If
! * <code>hideActionText</code> is <code>true</code>, setting the
! * <code>Action</code> changes the text of the button to
! * <code>null</code> and any changes to <code>NAME</code>
! * are ignored. <code>hideActionText</code> is useful for
! * tool bar buttons that typically only show an <code>Icon</code>.
! * <code>JToolBar.add(Action)</code> sets the property to
! * <code>true</code> if the <code>Action</code> has a
! * non-<code>null</code> value for <code>LARGE_ICON_KEY</code> or
! * <code>SMALL_ICON</code>.
* <tr valign="top" align="left">
! * <td><b><code>displayedMnemonicIndex</code></b>
* <td>All buttons
! * <td><code>DISPLAYED_MNEMONIC_INDEX_KEY</code>
! * <td>If the value of <code>DISPLAYED_MNEMONIC_INDEX_KEY</code> is
* beyond the bounds of the text, it is ignored. When
! * <code>setAction</code> is called, if the value from the
! * <code>Action</code> is <code>null</code>, the displayed
* mnemonic index is not updated. In any subsequent changes to
! * <code>DISPLAYED_MNEMONIC_INDEX_KEY</code>, <code>null</code>
* is treated as -1.
* <tr valign="top" align="left">
! * <td><b><code>icon</code></b>
! * <td>All buttons except of <code>JCheckBox</code>,
! * <code>JToggleButton</code> and <code>JRadioButton</code>.
! * <td>either <code>LARGE_ICON_KEY</code> or
! * <code>SMALL_ICON</code>
! * <td>The <code>JMenuItem</code> subclasses only use
! * <code>SMALL_ICON</code>. All other buttons will use
! * <code>LARGE_ICON_KEY</code>; if the value is <code>null</code> they
! * use <code>SMALL_ICON</code>.
* <tr valign="top" align="left">
! * <td><b><code>accelerator</code></b>
! * <td>All <code>JMenuItem</code> subclasses, with the exception of
! * <code>JMenu</code>.
! * <td><code>ACCELERATOR_KEY</code>
* <td>
* <tr valign="top" align="left">
! * <td><b><code>selected</code></b>
! * <td><code>JToggleButton</code>, <code>JCheckBox</code>,
! * <code>JRadioButton</code>, <code>JCheckBoxMenuItem</code> and
! * <code>JRadioButtonMenuItem</code>
! * <td><code>SELECTED_KEY</code>
* <td>Components that honor this property only use
* the value if it is {@code non-null}. For example, if
* you set an {@code Action} that has a {@code null}
* value for {@code SELECTED_KEY} on a {@code JToggleButton}, the
* {@code JToggleButton} will not update it's selected state in
--- 51,179 ----
* then know to disable event generation for that item and to modify the
* display accordingly.
* </ul>
* <p>
* This interface can be added to an existing class or used to create an
! * adapter (typically, by subclassing {@code AbstractAction}).
! * The {@code Action} object
! * can then be added to multiple {@code Action}-aware containers
! * and connected to {@code Action}-capable
* components. The GUI controls can then be activated or
! * deactivated all at once by invoking the {@code Action} object's
! * {@code setEnabled} method.
* <p>
! * Note that {@code Action} implementations tend to be more expensive
! * in terms of storage than a typical {@code ActionListener},
* which does not offer the benefits of centralized control of
* functionality and broadcast of property changes. For this reason,
! * you should take care to only use {@code Action}s where their benefits
! * are desired, and use simple {@code ActionListener}s elsewhere.
* <br>
*
! * <h3><a name="buttonActions"></a>Swing Components Supporting {@code Action}</h3>
* <p>
! * Many of Swing's components have an {@code Action} property. When
! * an {@code Action} is set on a component, the following things
* happen:
* <ul>
! * <li>The {@code Action} is added as an {@code ActionListener} to
* the component.
* <li>The component configures some of its properties to match the
! * {@code Action}.
! * <li>The component installs a {@code PropertyChangeListener} on the
! * {@code Action} so that the component can change its properties
! * to reflect changes in the {@code Action}'s properties.
* </ul>
* <p>
* The following table describes the properties used by
! * {@code Swing} components that support {@code Actions}.
* In the table, <em>button</em> refers to any
! * {@code AbstractButton} subclass, which includes not only
! * {@code JButton} but also classes such as
! * {@code JMenuItem}. Unless otherwise stated, a
! * {@code null} property value in an {@code Action} (or a
! * {@code Action} that is {@code null}) results in the
! * button's corresponding property being set to {@code null}.
*
* <table border="1" cellpadding="1" cellspacing="0"
* summary="Supported Action properties">
* <tr valign="top" align="left">
* <th style="background-color:#CCCCFF" align="left">Component Property
* <th style="background-color:#CCCCFF" align="left">Components
* <th style="background-color:#CCCCFF" align="left">Action Key
* <th style="background-color:#CCCCFF" align="left">Notes
* <tr valign="top" align="left">
! * <td><b>{@code enabled}</b>
* <td>All
! * <td>The {@code isEnabled} method
* <td>
* <tr valign="top" align="left">
! * <td><b>{@code toolTipText}</b>
* <td>All
! * <td>{@code SHORT_DESCRIPTION}
* <td>
* <tr valign="top" align="left">
! * <td><b>{@code actionCommand}</b>
* <td>All
! * <td>{@code ACTION_COMMAND_KEY}
* <td>
* <tr valign="top" align="left">
! * <td><b>{@code mnemonic}</b>
* <td>All buttons
! * <td>{@code MNEMONIC_KEY}
! * <td>A {@code null} value or {@code Action} results in the
! * button's {@code mnemonic} property being set to
! * {@code '\0'}.
* <tr valign="top" align="left">
! * <td><b>{@code text}</b>
* <td>All buttons
! * <td>{@code NAME}
* <td>If you do not want the text of the button to mirror that
! * of the {@code Action}, set the property
! * {@code hideActionText} to {@code true}. If
! * {@code hideActionText} is {@code true}, setting the
! * {@code Action} changes the text of the button to
! * {@code null} and any changes to {@code NAME}
! * are ignored. {@code hideActionText} is useful for
! * tool bar buttons that typically only show an {@code Icon}.
! * {@code JToolBar.add(Action)} sets the property to
! * {@code true} if the {@code Action} has a
! * non-{@code null} value for {@code LARGE_ICON_KEY} or
! * {@code SMALL_ICON}.
* <tr valign="top" align="left">
! * <td><b>{@code displayedMnemonicIndex}</b>
* <td>All buttons
! * <td>{@code DISPLAYED_MNEMONIC_INDEX_KEY}
! * <td>If the value of {@code DISPLAYED_MNEMONIC_INDEX_KEY} is
* beyond the bounds of the text, it is ignored. When
! * {@code setAction} is called, if the value from the
! * {@code Action} is {@code null}, the displayed
* mnemonic index is not updated. In any subsequent changes to
! * {@code DISPLAYED_MNEMONIC_INDEX_KEY}, {@code null}
* is treated as -1.
* <tr valign="top" align="left">
! * <td><b>{@code icon}</b>
! * <td>All buttons except of {@code JCheckBox},
! * {@code JToggleButton} and {@code JRadioButton}.
! * <td>either {@code LARGE_ICON_KEY} or
! * {@code SMALL_ICON}
! * <td>The {@code JMenuItem} subclasses only use
! * {@code SMALL_ICON}. All other buttons will use
! * {@code LARGE_ICON_KEY}; if the value is {@code null} they
! * use {@code SMALL_ICON}.
* <tr valign="top" align="left">
! * <td><b>{@code accelerator}</b>
! * <td>All {@code JMenuItem} subclasses, with the exception of
! * {@code JMenu}.
! * <td>{@code ACCELERATOR_KEY}
* <td>
* <tr valign="top" align="left">
! * <td><b>{@code selected}</b>
! * <td>{@code JToggleButton}, {@code JCheckBox},
! * {@code JRadioButton}, {@code JCheckBoxMenuItem} and
! * {@code JRadioButtonMenuItem}
! * <td>{@code SELECTED_KEY}
* <td>Components that honor this property only use
* the value if it is {@code non-null}. For example, if
* you set an {@code Action} that has a {@code null}
* value for {@code SELECTED_KEY} on a {@code JToggleButton}, the
* {@code JToggleButton} will not update it's selected state in
*** 191,214 ****
* use the same {@code Action} that defines a value for the
* {@code SELECTED_KEY} property with multiple mutually
* exclusive buttons.
* </table>
* <p>
! * <code>JPopupMenu</code>, <code>JToolBar</code> and <code>JMenu</code>
* all provide convenience methods for creating a component and setting the
! * <code>Action</code> on the corresponding component. Refer to each of
* these classes for more information.
* <p>
! * <code>Action</code> uses <code>PropertyChangeListener</code> to
! * inform listeners the <code>Action</code> has changed. The beans
! * specification indicates that a <code>null</code> property name can
* be used to indicate multiple values have changed. By default Swing
! * components that take an <code>Action</code> do not handle such a
! * change. To indicate that Swing should treat <code>null</code>
* according to the beans specification set the system property
! * <code>swing.actions.reconfigureOnNull</code> to the <code>String</code>
! * value <code>true</code>.
*
* @author Georges Saab
* @see AbstractAction
* @since 1.2
*/
--- 191,214 ----
* use the same {@code Action} that defines a value for the
* {@code SELECTED_KEY} property with multiple mutually
* exclusive buttons.
* </table>
* <p>
! * {@code JPopupMenu}, {@code JToolBar} and {@code JMenu}
* all provide convenience methods for creating a component and setting the
! * {@code Action} on the corresponding component. Refer to each of
* these classes for more information.
* <p>
! * {@code Action} uses {@code PropertyChangeListener} to
! * inform listeners the {@code Action} has changed. The beans
! * specification indicates that a {@code null} property name can
* be used to indicate multiple values have changed. By default Swing
! * components that take an {@code Action} do not handle such a
! * change. To indicate that Swing should treat {@code null}
* according to the beans specification set the system property
! * {@code swing.actions.reconfigureOnNull} to the {@code String}
! * value {@code true}.
*
* @author Georges Saab
* @see AbstractAction
* @since 1.2
*/
*** 221,337 ****
/**
* Not currently used.
*/
public static final String DEFAULT = "Default";
/**
! * The key used for storing the <code>String</code> name
* for the action, used for a menu or button.
*/
public static final String NAME = "Name";
/**
! * The key used for storing a short <code>String</code>
* description for the action, used for tooltip text.
*/
public static final String SHORT_DESCRIPTION = "ShortDescription";
/**
! * The key used for storing a longer <code>String</code>
* description for the action, could be used for context-sensitive help.
*/
public static final String LONG_DESCRIPTION = "LongDescription";
/**
! * The key used for storing a small <code>Icon</code>, such
! * as <code>ImageIcon</code>. This is typically used with
! * menus such as <code>JMenuItem</code>.
! * <p>
! * If the same <code>Action</code> is used with menus and buttons you'll
! * typically specify both a <code>SMALL_ICON</code> and a
! * <code>LARGE_ICON_KEY</code>. The menu will use the
! * <code>SMALL_ICON</code> and the button will use the
! * <code>LARGE_ICON_KEY</code>.
*/
public static final String SMALL_ICON = "SmallIcon";
/**
! * The key used to determine the command <code>String</code> for the
! * <code>ActionEvent</code> that will be created when an
! * <code>Action</code> is going to be notified as the result of
! * residing in a <code>Keymap</code> associated with a
! * <code>JComponent</code>.
*/
public static final String ACTION_COMMAND_KEY = "ActionCommandKey";
/**
! * The key used for storing a <code>KeyStroke</code> to be used as the
* accelerator for the action.
*
* @since 1.3
*/
public static final String ACCELERATOR_KEY="AcceleratorKey";
/**
! * The key used for storing an <code>Integer</code> that corresponds to
! * one of the <code>KeyEvent</code> key codes. The value is
* commonly used to specify a mnemonic. For example:
! * <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.VK_A)</code>
! * sets the mnemonic of <code>myAction</code> to 'a', while
* <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.getExtendedKeyCodeForChar('\u0444'))</code>
! * sets the mnemonic of <code>myAction</code> to Cyrillic letter "Ef".
*
* @since 1.3
*/
public static final String MNEMONIC_KEY="MnemonicKey";
/**
! * The key used for storing a <code>Boolean</code> that corresponds
* to the selected state. This is typically used only for components
* that have a meaningful selection state. For example,
! * <code>JRadioButton</code> and <code>JCheckBox</code> make use of
! * this but instances of <code>JMenu</code> don't.
* <p>
* This property differs from the others in that it is both read
* by the component and set by the component. For example,
! * if an <code>Action</code> is attached to a <code>JCheckBox</code>
! * the selected state of the <code>JCheckBox</code> will be set from
! * that of the <code>Action</code>. If the user clicks on the
! * <code>JCheckBox</code> the selected state of the <code>JCheckBox</code>
! * <b>and</b> the <code>Action</code> will <b>both</b> be updated.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing <code>Actions</code>.
*
* @since 1.6
*/
public static final String SELECTED_KEY = "SwingSelectedKey";
/**
! * The key used for storing an <code>Integer</code> that corresponds
! * to the index in the text (identified by the <code>NAME</code>
* property) that the decoration for a mnemonic should be rendered at. If
* the value of this property is greater than or equal to the length of
* the text, it will treated as -1.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing <code>Actions</code>.
*
* @see AbstractButton#setDisplayedMnemonicIndex
* @since 1.6
*/
public static final String DISPLAYED_MNEMONIC_INDEX_KEY =
"SwingDisplayedMnemonicIndexKey";
/**
! * The key used for storing an <code>Icon</code>. This is typically
! * used by buttons, such as <code>JButton</code> and
! * <code>JToggleButton</code>.
! * <p>
! * If the same <code>Action</code> is used with menus and buttons you'll
! * typically specify both a <code>SMALL_ICON</code> and a
! * <code>LARGE_ICON_KEY</code>. The menu will use the
! * <code>SMALL_ICON</code> and the button the <code>LARGE_ICON_KEY</code>.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing <code>Actions</code>.
*
* @since 1.6
*/
public static final String LARGE_ICON_KEY = "SwingLargeIconKey";
--- 221,337 ----
/**
* Not currently used.
*/
public static final String DEFAULT = "Default";
/**
! * The key used for storing the {@code String} name
* for the action, used for a menu or button.
*/
public static final String NAME = "Name";
/**
! * The key used for storing a short {@code String}
* description for the action, used for tooltip text.
*/
public static final String SHORT_DESCRIPTION = "ShortDescription";
/**
! * The key used for storing a longer {@code String}
* description for the action, could be used for context-sensitive help.
*/
public static final String LONG_DESCRIPTION = "LongDescription";
/**
! * The key used for storing a small {@code Icon}, such
! * as {@code ImageIcon}. This is typically used with
! * menus such as {@code JMenuItem}.
! * <p>
! * If the same {@code Action} is used with menus and buttons you'll
! * typically specify both a {@code SMALL_ICON} and a
! * {@code LARGE_ICON_KEY}. The menu will use the
! * {@code SMALL_ICON} and the button will use the
! * {@code LARGE_ICON_KEY}.
*/
public static final String SMALL_ICON = "SmallIcon";
/**
! * The key used to determine the command {@code String} for the
! * {@code ActionEvent} that will be created when an
! * {@code Action} is going to be notified as the result of
! * residing in a {@code Keymap} associated with a
! * {@code JComponent}.
*/
public static final String ACTION_COMMAND_KEY = "ActionCommandKey";
/**
! * The key used for storing a {@code KeyStroke} to be used as the
* accelerator for the action.
*
* @since 1.3
*/
public static final String ACCELERATOR_KEY="AcceleratorKey";
/**
! * The key used for storing an {@code Integer} that corresponds to
! * one of the {@code KeyEvent} key codes. The value is
* commonly used to specify a mnemonic. For example:
! * {@code myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.VK_A)}
! * sets the mnemonic of {@code myAction} to 'a', while
* <code>myAction.putValue(Action.MNEMONIC_KEY, KeyEvent.getExtendedKeyCodeForChar('\u0444'))</code>
! * sets the mnemonic of {@code myAction} to Cyrillic letter "Ef".
*
* @since 1.3
*/
public static final String MNEMONIC_KEY="MnemonicKey";
/**
! * The key used for storing a {@code Boolean} that corresponds
* to the selected state. This is typically used only for components
* that have a meaningful selection state. For example,
! * {@code JRadioButton} and {@code JCheckBox} make use of
! * this but instances of {@code JMenu} don't.
* <p>
* This property differs from the others in that it is both read
* by the component and set by the component. For example,
! * if an {@code Action} is attached to a {@code JCheckBox}
! * the selected state of the {@code JCheckBox} will be set from
! * that of the {@code Action}. If the user clicks on the
! * {@code JCheckBox} the selected state of the {@code JCheckBox}
! * <b>and</b> the {@code Action} will <b>both</b> be updated.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing {@code Actions}.
*
* @since 1.6
*/
public static final String SELECTED_KEY = "SwingSelectedKey";
/**
! * The key used for storing an {@code Integer} that corresponds
! * to the index in the text (identified by the {@code NAME}
* property) that the decoration for a mnemonic should be rendered at. If
* the value of this property is greater than or equal to the length of
* the text, it will treated as -1.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing {@code Actions}.
*
* @see AbstractButton#setDisplayedMnemonicIndex
* @since 1.6
*/
public static final String DISPLAYED_MNEMONIC_INDEX_KEY =
"SwingDisplayedMnemonicIndexKey";
/**
! * The key used for storing an {@code Icon}. This is typically
! * used by buttons, such as {@code JButton} and
! * {@code JToggleButton}.
! * <p>
! * If the same {@code Action} is used with menus and buttons you'll
! * typically specify both a {@code SMALL_ICON} and a
! * {@code LARGE_ICON_KEY}. The menu will use the
! * {@code SMALL_ICON} and the button the {@code LARGE_ICON_KEY}.
* <p>
* Note: the value of this field is prefixed with 'Swing' to
! * avoid possible collisions with existing {@code Actions}.
*
* @since 1.6
*/
public static final String LARGE_ICON_KEY = "SwingLargeIconKey";
*** 345,394 ****
*/
public Object getValue(String key);
/**
* Sets one of this object's properties
* using the associated key. If the value has
! * changed, a <code>PropertyChangeEvent</code> is sent
* to listeners.
*
! * @param key a <code>String</code> containing the key
! * @param value an <code>Object</code> value
*/
public void putValue(String key, Object value);
/**
! * Sets the enabled state of the <code>Action</code>. When enabled,
* any component associated with this object is active and
! * able to fire this object's <code>actionPerformed</code> method.
! * If the value has changed, a <code>PropertyChangeEvent</code> is sent
* to listeners.
*
! * @param b true to enable this <code>Action</code>, false to disable it
*/
public void setEnabled(boolean b);
/**
! * Returns the enabled state of the <code>Action</code>. When enabled,
* any component associated with this object is active and
! * able to fire this object's <code>actionPerformed</code> method.
*
! * @return true if this <code>Action</code> is enabled
*/
public boolean isEnabled();
/**
! * Adds a <code>PropertyChange</code> listener. Containers and attached
* components use these methods to register interest in this
! * <code>Action</code> object. When its enabled state or other property
* changes, the registered listeners are informed of the change.
*
! * @param listener a <code>PropertyChangeListener</code> object
*/
public void addPropertyChangeListener(PropertyChangeListener listener);
/**
! * Removes a <code>PropertyChange</code> listener.
*
! * @param listener a <code>PropertyChangeListener</code> object
* @see #addPropertyChangeListener
*/
public void removePropertyChangeListener(PropertyChangeListener listener);
}
--- 345,394 ----
*/
public Object getValue(String key);
/**
* Sets one of this object's properties
* using the associated key. If the value has
! * changed, a {@code PropertyChangeEvent} is sent
* to listeners.
*
! * @param key a {@code String} containing the key
! * @param value an {@code Object} value
*/
public void putValue(String key, Object value);
/**
! * Sets the enabled state of the {@code Action}. When enabled,
* any component associated with this object is active and
! * able to fire this object's {@code actionPerformed} method.
! * If the value has changed, a {@code PropertyChangeEvent} is sent
* to listeners.
*
! * @param b true to enable this {@code Action}, false to disable it
*/
public void setEnabled(boolean b);
/**
! * Returns the enabled state of the {@code Action}. When enabled,
* any component associated with this object is active and
! * able to fire this object's {@code actionPerformed} method.
*
! * @return true if this {@code Action} is enabled
*/
public boolean isEnabled();
/**
! * Adds a {@code PropertyChange} listener. Containers and attached
* components use these methods to register interest in this
! * {@code Action} object. When its enabled state or other property
* changes, the registered listeners are informed of the change.
*
! * @param listener a {@code PropertyChangeListener} object
*/
public void addPropertyChangeListener(PropertyChangeListener listener);
/**
! * Removes a {@code PropertyChange} listener.
*
! * @param listener a {@code PropertyChangeListener} object
* @see #addPropertyChangeListener
*/
public void removePropertyChangeListener(PropertyChangeListener listener);
}
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