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/* ActionEvent.java -- An action has been triggered
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the non-peer AWT libraries of GNU Classpath.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published
by the Free Software Foundation, either version 2 of the License, or
(at your option) any later verion.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA. */
package java.awt.event;
/**
* This event is generated when an action on a component (such as a
* button press) occurs.
*
* @author Aaron M. Renn (arenn@urbanophile.com)
*/
public class ActionEvent extends java.awt.AWTEvent
implements java.io.Serializable
{
/*
* Static Variables
*/
/**
* The first id number in the range of action id's.
*/
public static final int ACTION_FIRST = 1001;
/**
* The last id number in the range of action id's.
*/
public static final int ACTION_LAST = 1001;
/**
* An event id indicating that an action has occurred.
*/
public static final int ACTION_PERFORMED = 1001;
/**
* Bit mask indicating the shift key was pressed.
*/
public static final int SHIFT_MASK = 1;
/**
* Bit mask indicating the control key was pressed.
*/
public static final int CTRL_MASK = 1;
/**
* Bit mask indicating the that meta key was pressed.
*/
public static final int META_MASK = 1;
/**
* Bit mask indicating that the alt key was pressed.
*/
public static final int ALT_MASK = 1;
/*************************************************************************/
/*
* Instance Variables
*/
/**
* @serial Modifiers for this event
*/
private int modifiers;
/**
* @serial The command for this event
*/
private String actionCommand;
/*************************************************************************/
/*
* Constructors
*/
/**
* Initializes a new instance of <code>ActionEvent</code> with the
* specified source, id, and command.
*
* @param source The event source.
* @param id The event id.
* @param command The command string for this action.
*/
public
ActionEvent(Object source, int id, String command)
{
super(source, id);
this.actionCommand = command;
}
/*************************************************************************/
/**
* Initializes a new instance of <code>ActionEvent</code> with the
* specified source, id, command, and modifiers.
*
* @param source The event source.
* @param id The event id.
* @param command The command string for this action.
* @param modifiers The keys held down during the action, which is
* combination of the bit mask constants defined in this class.
*/
public
ActionEvent(Object source, int id, String command, int modifiers)
{
this(source, id, command);
this.modifiers = modifiers;
}
/*************************************************************************/
/*
* Instance Methods
*/
/**
* Returns the command string associated with this action.
*
* @return The command string associated with this action.
*/
public String
getActionCommand()
{
return(actionCommand);
}
/*************************************************************************/
/**
* Returns the keys held down during the action. This value will be a
* combination of the bit mask constants defined in this class.
*
* @return The modifier bits.
*/
public int
getModifiers()
{
return(modifiers);
}
/*************************************************************************/
/**
* Returns a string that identifies the action event.
*
* @return A string identifying the event.
*/
public String
paramString()
{
return("ActionEvent: source=" + getSource().toString() + " id=" + getID() +
" command=" + getActionCommand() + " modifiers=" + getModifiers());
}
} // class ActionEvent
|
