mirror of git://gcc.gnu.org/git/gcc.git
312 lines
9.8 KiB
Java
312 lines
9.8 KiB
Java
/* WindowEvent.java -- window change event
|
|
Copyright (C) 1999, 2002 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath 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
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package java.awt.event;
|
|
|
|
import java.awt.Window;
|
|
|
|
/**
|
|
* This event is generated when there is a change in a window. This includes
|
|
* creation, closing, iconification, activation, and focus changes. There
|
|
* are three listeners, for three types of events: WindowListeners deal with
|
|
* the lifecycle of a window, WindowStateListeners deal with window state
|
|
* like maximization, and WindowFocusListeners deal with focus switching to
|
|
* or from a window.
|
|
*
|
|
* @author Aaron M. Renn <arenn@urbanophile.com>
|
|
* @see WindowAdapter
|
|
* @see WindowListener
|
|
* @see WindowFocusListener
|
|
* @see WindowStateListener
|
|
* @since 1.1
|
|
* @status updated to 1.4
|
|
*/
|
|
public class WindowEvent extends ComponentEvent
|
|
{
|
|
/**
|
|
* Compatible with JDK 1.1+.
|
|
*/
|
|
private static final long serialVersionUID = -1567959133147912127L;
|
|
|
|
/** This is the first id in the range of event ids used by this class. */
|
|
public static final int WINDOW_FIRST = 200;
|
|
|
|
/** This is the id for a window that is opened. */
|
|
public static final int WINDOW_OPENED = 200;
|
|
|
|
/** This is the id for a window that is about to close. */
|
|
public static final int WINDOW_CLOSING = 201;
|
|
|
|
/** This is the id for a window that finished closing. */
|
|
public static final int WINDOW_CLOSED = 202;
|
|
|
|
/** This is the id for a window that is iconified. */
|
|
public static final int WINDOW_ICONIFIED = 203;
|
|
|
|
/** This is the id for a window that is de-iconified. */
|
|
public static final int WINDOW_DEICONIFIED = 204;
|
|
|
|
/** This is the id for a window that is activated. */
|
|
public static final int WINDOW_ACTIVATED = 205;
|
|
|
|
/** This is the id for a window that is de-activated. */
|
|
public static final int WINDOW_DEACTIVATED = 206;
|
|
|
|
/**
|
|
* This is the id for a window becoming the focused window.
|
|
*
|
|
* @since 1.4
|
|
*/
|
|
public static final int WINDOW_GAINED_FOCUS = 207;
|
|
|
|
/**
|
|
* This is the id for a window losing all focus.
|
|
*
|
|
* @since 1.4
|
|
*/
|
|
public static final int WINDOW_LOST_FOCUS = 208;
|
|
|
|
/**
|
|
* This is the id for a window state change, such as maximization.
|
|
*
|
|
* @since 1.4
|
|
*/
|
|
public static final int WINDOW_STATE_CHANGED = 209;
|
|
|
|
/** This is the last id in the range of event ids used by this class. */
|
|
public static final int WINDOW_LAST = 209;
|
|
|
|
/**
|
|
* The other Window involved in a focus or activation change. For
|
|
* WINDOW_ACTIVATED and WINDOW_GAINED_FOCUS events, this is the window that
|
|
* lost focus; for WINDOW_DEACTIVATED and WINDOW_LOST_FOCUS, this is the
|
|
* window that stole focus; and for other events (or when native
|
|
* implementation does not have the data available), this is null.
|
|
*
|
|
* @see #getOppositeWindow()
|
|
* @serial the opposite window, or null
|
|
* @since 1.4
|
|
*/
|
|
private final Window opposite;
|
|
|
|
/**
|
|
* The former state of the window.
|
|
*
|
|
* @serial bitmask of the old window state
|
|
* @since 1.4
|
|
*/
|
|
private final int oldState;
|
|
|
|
/**
|
|
* The present state of the window.
|
|
*
|
|
* @serial bitmask of the new window state
|
|
* @since 1.4
|
|
*/
|
|
private final int newState;
|
|
|
|
/**
|
|
* Initializes a new instance of <code>WindowEvent</code> with the specified
|
|
* parameters. Note that an invalid id leads to unspecified results.
|
|
*
|
|
* @param source the window that generated this event
|
|
* @param id the event id
|
|
* @param opposite the window that received the opposite event, or null
|
|
* @param oldState the previous state of this window
|
|
* @param newState the new state of this window
|
|
* @throws IllegalArgumentException if source is null
|
|
* @since 1.4
|
|
*/
|
|
public WindowEvent(Window source, int id, Window opposite,
|
|
int oldState, int newState)
|
|
{
|
|
super(source, id);
|
|
this.opposite = opposite;
|
|
this.oldState = oldState;
|
|
this.newState = newState;
|
|
}
|
|
|
|
/**
|
|
* Initializes a new instance of <code>WindowEvent</code> with the specified
|
|
* parameters. Note that an invalid id leads to unspecified results.
|
|
*
|
|
* @param source the window that generated this event
|
|
* @param id the event id
|
|
* @param opposite the window that received the opposite event, or null
|
|
* @throws IllegalArgumentException if source is null
|
|
* @since 1.4
|
|
*/
|
|
public WindowEvent(Window source, int id, Window opposite)
|
|
{
|
|
this(source, id, opposite, 0, 0);
|
|
}
|
|
|
|
/**
|
|
* Initializes a new instance of <code>WindowEvent</code> with the specified
|
|
* parameters. Note that an invalid id leads to unspecified results.
|
|
*
|
|
* @param source the window that generated this event
|
|
* @param id the event id
|
|
* @param oldState the previous state of this window
|
|
* @param newState the new state of this window
|
|
* @throws IllegalArgumentException if source is null
|
|
* @since 1.4
|
|
*/
|
|
public WindowEvent(Window source, int id, int oldState, int newState)
|
|
{
|
|
this(source, id, null, oldState, newState);
|
|
}
|
|
|
|
/**
|
|
* Initializes a new instance of <code>WindowEvent</code> with the specified
|
|
* parameters. Note that an invalid id leads to unspecified results.
|
|
*
|
|
* @param source the window that generated this event
|
|
* @param id the event id
|
|
* @throws IllegalArgumentException if source is null
|
|
*/
|
|
public WindowEvent(Window source, int id)
|
|
{
|
|
this(source, id, null, 0, 0);
|
|
}
|
|
|
|
/**
|
|
* Returns the event source as a <code>Window</code>. If the source has
|
|
* subsequently been modified to a non-Window, this returns null.
|
|
*
|
|
* @return the event source as a <code>Window</code>
|
|
*/
|
|
public Window getWindow()
|
|
{
|
|
return source instanceof Window ? (Window) source : null;
|
|
}
|
|
|
|
/**
|
|
* Returns the opposite window if this window was involved in an activation
|
|
* or focus change. For WINDOW_ACTIVATED and WINDOW_GAINED_FOCUS events,
|
|
* this is the window that lost focus; for WINDOW_DEACTIVATED and
|
|
* WINDOW_LOST_FOCUS, this is the window that stole focus; and for other
|
|
* events (or when native implementation does not have the data available),
|
|
* this is null.
|
|
*
|
|
* @return the opposite window, or null
|
|
* @since 1.4
|
|
*/
|
|
public Window getOppositeWindow()
|
|
{
|
|
return opposite;
|
|
}
|
|
|
|
/**
|
|
* Returns the state of this window before the event. This is the bitwise
|
|
* or of fields in Frame: NORMAL, ICONIFIED, MAXIMIZED_HORIZ, MAXIMIZED_VERT,
|
|
* and MAXIMIZED_BOTH.
|
|
*
|
|
* @return the former state
|
|
* @see Frame#getExtendedState()
|
|
* @since 1.4
|
|
*/
|
|
public int getOldState()
|
|
{
|
|
return oldState;
|
|
}
|
|
|
|
/**
|
|
* Returns the state of this window after the event. This is the bitwise
|
|
* or of fields in Frame: NORMAL, ICONIFIED, MAXIMIZED_HORIZ, MAXIMIZED_VERT,
|
|
* and MAXIMIZED_BOTH.
|
|
*
|
|
* @return the updated state
|
|
* @see Frame#getExtendedState()
|
|
* @since 1.4
|
|
*/
|
|
public int getNewState()
|
|
{
|
|
return newState;
|
|
}
|
|
|
|
/**
|
|
* Returns a string that identifies this event. This is formatted as the
|
|
* field name of the id, followed by the opposite window, old state, and
|
|
* new state.
|
|
*
|
|
* @return a string that identifies this event
|
|
*/
|
|
public String paramString()
|
|
{
|
|
StringBuffer s = new StringBuffer();
|
|
switch (id)
|
|
{
|
|
case WINDOW_OPENED:
|
|
s.append("WINDOW_OPENED,opposite=");
|
|
break;
|
|
case WINDOW_CLOSING:
|
|
s.append("WINDOW_CLOSING,opposite=");
|
|
break;
|
|
case WINDOW_CLOSED:
|
|
s.append("WINDOW_CLOSED,opposite=");
|
|
break;
|
|
case WINDOW_ICONIFIED:
|
|
s.append("WINDOW_ICONIFIED,opposite=");
|
|
break;
|
|
case WINDOW_DEICONIFIED:
|
|
s.append("WINDOW_DEICONIFIED,opposite=");
|
|
break;
|
|
case WINDOW_ACTIVATED:
|
|
s.append("WINDOW_ACTIVATED,opposite=");
|
|
break;
|
|
case WINDOW_DEACTIVATED:
|
|
s.append("WINDOW_DEACTIVATED,opposite=");
|
|
break;
|
|
case WINDOW_GAINED_FOCUS:
|
|
s.append("WINDOW_GAINED_FOCUS,opposite=");
|
|
break;
|
|
case WINDOW_LOST_FOCUS:
|
|
s.append("WINDOW_LOST_FOCUS,opposite=");
|
|
break;
|
|
case WINDOW_STATE_CHANGED:
|
|
s.append("WINDOW_STATE_CHANGED,opposite=");
|
|
break;
|
|
default:
|
|
s.append("unknown type,opposite=");
|
|
}
|
|
return s.append(opposite).append(",oldState=").append(oldState)
|
|
.append(",newState=").append(newState).toString();
|
|
}
|
|
} // class WindowEvent
|