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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [classpath/] [javax/] [swing/] [Action.java] - Blame information for rev 772

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1 772 jeremybenn 
/* Action.java --
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   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing;
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import java.awt.event.ActionListener;
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import java.beans.PropertyChangeListener;
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/**
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 * Provides a convenient central point of control for some task
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 * that can be triggered by more than one control in a Swing user interface
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 * (for example, a menu item and a toolbar button).
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 *
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 * @see AbstractButton#setAction(Action)
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 *
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 * @author Ronald Veldema (rveldema@cs.vu.nl)
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 * @author Andrew Selkirk
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 */
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public interface Action extends ActionListener {
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  /**
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   * A key to access the default property for the action (this is not used).
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   */
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  String DEFAULT = "Default";
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  /**
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   * A key to access the long description for the action.
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   */
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  String LONG_DESCRIPTION = "LongDescription";
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  /**
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   * A key to access the name for the action.
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   */
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  String NAME = "Name";
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  /**
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   * A key to access the short description for the action (the short
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   * description is typically used as the tool tip text).
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   */
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  String SHORT_DESCRIPTION = "ShortDescription";
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  /**
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   * A key to access the icon for the action.
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   */
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  String SMALL_ICON = "SmallIcon";
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  /**
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   * A key to access the {@link KeyStroke} used as the accelerator for the
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   * action.
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   */
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  String ACCELERATOR_KEY = "AcceleratorKey";
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  /**
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   * A key to access the action command string for the action.
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   */
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  String ACTION_COMMAND_KEY = "ActionCommandKey";
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  /**
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   * A key to access the mnemonic for the action.
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   */
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  String MNEMONIC_KEY = "MnemonicKey";
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  /**
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   * Returns the value associated with the specified key.
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   *
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   * @param key  the key (not <code>null</code>).
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   *
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   * @return The value associated with the specified key, or
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   *         <code>null</code> if the key is not found.
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   */
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  Object getValue(String key);
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  /**
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   * Sets the value associated with the specified key and sends a
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   * {@link java.beans.PropertyChangeEvent} to all registered listeners.
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   * The standard keys are defined in this interface: {@link #NAME},
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   * {@link #SHORT_DESCRIPTION}, {@link #LONG_DESCRIPTION},
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   * {@link #SMALL_ICON}, {@link #ACTION_COMMAND_KEY},
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   * {@link #ACCELERATOR_KEY} and {@link #MNEMONIC_KEY}. Any existing value
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   * associated with the key will be overwritten.
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   *
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   * @param key  the key (not <code>null</code>).
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   * @param value  the value (<code>null</code> permitted).
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   */
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  void putValue(String key, Object value);
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  /**
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   * Returns the flag that indicates whether or not this action is enabled.
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   *
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   * @return The flag.
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   */
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  boolean isEnabled();
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  /**
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   * Sets the flag that indicates whether or not this action is enabled.  If
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   * the value changes, a {@link java.beans.PropertyChangeEvent} is sent to
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   * all registered listeners.
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   *
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   * @param b  the new value of the flag.
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   */
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  void setEnabled(boolean b);
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  /**
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   * Registers a listener to receive notification whenever one of the
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   * action's properties is modified.
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   *
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   * @param listener  the listener.
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   */
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  void addPropertyChangeListener(PropertyChangeListener listener);
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  /**
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   * Deregisters a listener so that it no longer receives notification of
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   * changes to the action's properties.
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   *
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   * @param listener  the listener.
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   */
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  void removePropertyChangeListener(PropertyChangeListener listener);
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} // Action

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