2002-01-18 02:01:58 +01:00
|
|
|
/* Button.java -- AWT button widget
|
|
|
|
Copyright (C) 1999, 2002 Free Software Foundation, Inc.
|
2000-07-31 01:19:57 +02:00
|
|
|
|
2002-01-18 02:01:58 +01:00
|
|
|
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.
|
|
|
|
|
2002-01-22 23:40:42 +01:00
|
|
|
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. */
|
2000-07-31 01:19:57 +02:00
|
|
|
|
|
|
|
|
|
|
|
package java.awt;
|
2002-01-18 02:01:58 +01:00
|
|
|
|
|
|
|
import java.awt.event.ActionEvent;
|
|
|
|
import java.awt.event.ActionListener;
|
2000-07-31 01:19:57 +02:00
|
|
|
import java.awt.peer.ButtonPeer;
|
|
|
|
import java.awt.peer.ComponentPeer;
|
2002-08-09 06:26:17 +02:00
|
|
|
import java.lang.reflect.Array;
|
ComponentDataBlitOp.java: New file.
* gnu/gcj/awt/ComponentDataBlitOp.java: New file.
* gnu/gcj/awt/GLightweightPeer.java: New file.
* java/awt/BorderLayout.java: Implemented all methods.
* java/awt/Button.java (actionListener, actionCommand): Renamed
and modifier change.
(addNotify): Call super.
(dispatchEventImpl): New method.
(getListeners): New method.
(label): Made package-private, not private.
* java/awt/Canvas.java: Implemented class body.
* java/awt/Color.java (brighter): New method.
(darker): New method.
(hashCode): New method.
* java/awt/Component.java (visible, enabled, eventMask): Set defaults.
(getGraphicsConfiguration): Delegate to
getGraphicsConfigurationImpl().
(getGraphicsConfigurationImpl): New method.
(getToolkit): Only return value from peer if not null.
(isDisplayable): Check with parent.
(isShowing): No parent implies not showing.
(getForeground): Check parent property if local is null.
(getBackground): Likewise.
(getFont): Likewise.
(setForeground): Inform peer.
(setBackground): Likewise
(setLocale): Invalidate component.
(getColorModel): Implemented.
(setLocation): Invalidate, or ignore if no change.
(setSize): Invalidate, or ignore if no change.
(setBounds): Invalidate, or ignore if no change.
(isOpaque): By default, heavyweight implies opaque.
(isLightweight): Implemented.
(getMaximumSize): Implemented.
(doLayout): Implemented, NOP.
(validate): Implemented, NOP.
(invalidate): Only propagate to parent if parent was valid.
(getGraphics): Implemented.
(getFontMetrics): Implemented.
(update): Implemented.
(paintAll): Implemented.
(repaint): Implemented all repaint methods.
(print): Implemented.
(printAll): Implemented.
(createImage): Implemented.
(dispatchEvent): Give the peer a chance to handle the event.
(dispatchEventImpl): Dispatch paint events.
(enableEvents): Lightweights enable events on parent component.
(coalesceEvents): Coalesce paint events, and select event type
using a switch.
(coalescePaintEvents): New method.
(processEvent): Fix unfortunate ordering of statements, and call
correct method for MOUSE_CLICKED.
(processPaintEvent): New method.
(addNotify): Allow container to notify children before event
mask is set in peer.
(addNotifyContainerChildren): New method.
(removeNotify): Visibility should not change on removeNotify.
(paramString): Implemented.
(list): Implemented two of the list methods.
* Container (myInsets): Removed, insets are managed by peer.
(getInsets): Query peer.
(addImpl): Fix reparenting, enable events for lightweights,
initialize component array.
(validate): Call doLayout in validateTree() instead.
(validateTree): Do nothing if already valid. Call beginValidate(),
endValidate() on peer. Call validateTree() instead of validate()
for children that are containers. Mark valid after validation of
children.
(setFont): Partial implementation.
(paint): Implemented.
(visitChildren): New method.
(visitChild): New method.
(update): Implemented.
(print): Implemented.
(paintComponents): Implemented.
(printComponents): Consider translation and clipping.
(getComponentAt): Ignore invisible children. Return this if no
child match.
(addNotify): Call super.
(addNotifyContainerChildren): New method.
(paramString): Implemented.
(list): Implemented.
* java/awt/EventQueue (invokeAndWait): Get system event queue the
right way.
(invokeLater): Likewise.
(isDispatchThread): Likewise.
* java/awt/FontMetrics (getLeading): Formula change.
(getDescent): Consider leading also.
(getMaxAscent): Default to getAscent().
(getMaxDescent): Default to getDescent.
(getMaxAdvance): Return value signifying unknown.
(charWidth): Both methods implemented.
(charsWidth): Implemented.
(bytesWidth): Implemented.
(getWidths): Implemented.
* java/awt/Frame.java (NORMAL, ICONIFIED, iconImage, isResizable,
state): New fields.
(Frame): Rearragend constuctor chaining to disallow null being
passed as a graphics configuration.
(getTitle): Return empty string if null.
(dispose): Removed.
(getIconImage): New method.
(setIconImage): New method.
(finalize): New method.
(setMenuBar): Notify peer.
(isResizable): New method.
(setResizable): New method.
(getState): New method.
(getFont): Removed.
(remove): Implemented.
(removeNotify): New method.
(getFrames): New method.
* java/awt/Graphics.java: Implemented body of class.
* java/awt/Graphics2D.java: New file.
* java/awt/GraphicsConfiguration.java: Enabled part of the API.
* java/awt/Image.java: Implemented body of class.
* java/awt/Panel.java (Panel): Call correct super constructor.
(addNotify): Implemented.
* java/awt/Rectangle.java (isEmpty): Fixed reversed logic.
* java/awt/RenderingHints.java: New file.
* java/awt/Toolkit.java (createComponent): Implemented.
(getSystemEventQueue): Delegate to getSystemEventQueueImpl().
* java/awt/Window.java (Window): Two new constructors. Reordered
constructor chaining.
(getGraphicsConfigurationImpl): New method.
(finalize): Call super.
(addNotify): Call super.
(pack): Do layout stuff.
(show): Ensure that peer exists and that component is valid.
(dispose): Dispose owned children.
(getOwner): Simplify code, casting null pointers is valid.
(getGraphicsConfiguration): Ask peer if local value is null.
* java/awt/event/ActionEvent.java (getActionCommand): Renamed from
getcmd().
* java/awt/image/BufferedImage.java: New file.
* java/awt/image/RasterOp.java: New file.
* java/awt/peer/ComponentPeer.java (getGraphicsConfiguration):
More powerfull replacement for getColorModel().
(getColorModel) Removed.
(setEventMask) New method.
* Makefile.am: Added new files.
* Makefile.in: Rebuilt.
From-SVN: r35748
2000-08-16 20:03:48 +02:00
|
|
|
import java.util.EventListener;
|
2000-07-31 01:19:57 +02:00
|
|
|
|
|
|
|
/**
|
2002-01-18 02:01:58 +01:00
|
|
|
* This class provides a button widget for the AWT.
|
|
|
|
*
|
|
|
|
* @author Aaron M. Renn (arenn@urbanophile.com)
|
|
|
|
* @author Tom Tromey <tromey@cygnus.com>
|
|
|
|
*/
|
|
|
|
public class Button extends Component implements java.io.Serializable
|
|
|
|
{
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Static Variables
|
|
|
|
*/
|
|
|
|
|
|
|
|
// FIXME: Need readObject/writeObject for serialization
|
|
|
|
|
|
|
|
// Serialization version constant
|
|
|
|
private static final long serialVersionUID = -8774683716313001058L;
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Instance Variables
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @serial The action command name for this button.
|
|
|
|
*/
|
|
|
|
private String actionCommand;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @serial The label for this button.
|
|
|
|
*/
|
|
|
|
private String label;
|
|
|
|
|
|
|
|
// List of ActionListeners for this class.
|
|
|
|
private transient ActionListener action_listeners;
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Constructors
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Initializes a new instance of <code>Button</code> with no label.
|
|
|
|
*/
|
|
|
|
public
|
|
|
|
Button()
|
|
|
|
{
|
|
|
|
this(null);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Initializes a new instance of <code>Button</code> with the specified
|
|
|
|
* label. The action command name is also initialized to this value.
|
|
|
|
*
|
|
|
|
* @param label The label to display on the button.
|
|
|
|
*/
|
|
|
|
public
|
|
|
|
Button(String label)
|
|
|
|
{
|
|
|
|
this.label = label;
|
|
|
|
actionCommand = label;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Instance Variables
|
2000-07-31 01:19:57 +02:00
|
|
|
*/
|
|
|
|
|
2002-01-18 02:01:58 +01:00
|
|
|
/**
|
|
|
|
* Returns the label for this button.
|
|
|
|
*
|
|
|
|
* @return The label for this button.
|
|
|
|
*/
|
|
|
|
public String
|
|
|
|
getLabel()
|
2000-07-31 01:19:57 +02:00
|
|
|
{
|
2002-01-18 02:01:58 +01:00
|
|
|
return(label);
|
2000-07-31 01:19:57 +02:00
|
|
|
}
|
2002-01-18 02:01:58 +01:00
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets the label for this button to the specified value.
|
|
|
|
*
|
|
|
|
* @param label The new label for this button.
|
|
|
|
*/
|
|
|
|
public synchronized void
|
|
|
|
setLabel(String label)
|
|
|
|
{
|
|
|
|
this.label = label;
|
|
|
|
if (peer != null)
|
|
|
|
{
|
|
|
|
ButtonPeer bp = (ButtonPeer) peer;
|
|
|
|
bp.setLabel (label);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the action command name for this button.
|
|
|
|
*
|
|
|
|
* @return The action command name for this button.
|
|
|
|
*/
|
|
|
|
public String
|
|
|
|
getActionCommand()
|
|
|
|
{
|
|
|
|
return(actionCommand);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets the action command name for this button to the specified value.
|
|
|
|
*
|
|
|
|
* @param actionCommand The new action command name.
|
|
|
|
*/
|
|
|
|
public void
|
|
|
|
setActionCommand(String actionCommand)
|
|
|
|
{
|
|
|
|
this.actionCommand = actionCommand == null ? label : actionCommand;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Adds a new entry to the list of listeners that will receive
|
|
|
|
* action events from this button.
|
|
|
|
*
|
|
|
|
* @param listener The listener to add.
|
|
|
|
*/
|
|
|
|
public synchronized void
|
|
|
|
addActionListener(ActionListener listener)
|
|
|
|
{
|
|
|
|
action_listeners = AWTEventMulticaster.add(action_listeners, listener);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Removes the specified listener from the list of listeners that will
|
|
|
|
* receive action events from this button.
|
|
|
|
*
|
|
|
|
* @param listener The listener to remove.
|
|
|
|
*/
|
|
|
|
public synchronized void
|
|
|
|
removeActionListener(ActionListener listener)
|
|
|
|
{
|
|
|
|
action_listeners = AWTEventMulticaster.remove(action_listeners, listener);
|
|
|
|
}
|
|
|
|
|
2002-08-09 06:26:17 +02:00
|
|
|
public synchronized ActionListener[] getActionListeners()
|
|
|
|
{
|
|
|
|
return (ActionListener[])
|
|
|
|
AWTEventMulticaster.getListeners(action_listeners,
|
|
|
|
ActionListener.class);
|
|
|
|
}
|
|
|
|
|
|
|
|
/** Returns all registered EventListers of the given listenerType.
|
|
|
|
* listenerType must be a subclass of EventListener, or a
|
|
|
|
* ClassClassException is thrown.
|
|
|
|
* @since 1.3
|
|
|
|
*/
|
|
|
|
public EventListener[] getListeners(Class listenerType)
|
|
|
|
{
|
|
|
|
if (listenerType == ActionListener.class)
|
|
|
|
return getActionListeners();
|
|
|
|
return (EventListener[]) Array.newInstance(listenerType, 0);
|
|
|
|
}
|
2002-01-18 02:01:58 +01:00
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Notifies this button that it should create its native peer object.
|
|
|
|
*/
|
|
|
|
public void
|
|
|
|
addNotify()
|
|
|
|
{
|
|
|
|
if (peer == null)
|
|
|
|
peer = getToolkit ().createButton (this);
|
|
|
|
super.addNotify();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Processes an event for this button. If the specified event is an
|
|
|
|
* instance of <code>ActionEvent</code>, then the
|
|
|
|
* <code>processActionEvent()</code> method is called to dispatch it
|
|
|
|
* to any registered listeners. Otherwise, the superclass method
|
|
|
|
* will be invoked. Note that this method will not be called at all
|
|
|
|
* unless <code>ActionEvent</code>'s are enabled. This will be done
|
|
|
|
* implicitly if any listeners are added.
|
|
|
|
*
|
|
|
|
* @param event The event to process.
|
|
|
|
*/
|
|
|
|
protected void
|
|
|
|
processEvent(AWTEvent event)
|
|
|
|
{
|
|
|
|
if (event instanceof ActionEvent)
|
|
|
|
processActionEvent((ActionEvent)event);
|
|
|
|
else
|
|
|
|
super.processEvent(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This method dispatches an action event for this button to any
|
|
|
|
* registered listeners.
|
|
|
|
*
|
|
|
|
* @param event The event to process.
|
|
|
|
*/
|
|
|
|
protected void
|
|
|
|
processActionEvent(ActionEvent event)
|
|
|
|
{
|
|
|
|
if (action_listeners != null)
|
|
|
|
action_listeners.actionPerformed(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
dispatchEventImpl(AWTEvent e)
|
|
|
|
{
|
|
|
|
if (e.id <= ActionEvent.ACTION_LAST
|
|
|
|
&& e.id >= ActionEvent.ACTION_FIRST
|
|
|
|
&& (action_listeners != null
|
|
|
|
|| (eventMask & AWTEvent.ACTION_EVENT_MASK) != 0))
|
|
|
|
processEvent(e);
|
2002-03-24 23:37:51 +01:00
|
|
|
else
|
|
|
|
super.dispatchEventImpl(e);
|
2002-01-18 02:01:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*************************************************************************/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns a debugging string for this button.
|
|
|
|
*
|
|
|
|
* @return A debugging string for this button.
|
|
|
|
*/
|
|
|
|
protected String
|
|
|
|
paramString()
|
|
|
|
{
|
2002-01-22 23:03:04 +01:00
|
|
|
return ("label=" + getLabel() + ",actionCommand=" + getActionCommand()
|
|
|
|
+ "," + super.paramString());
|
2002-01-18 02:01:58 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
} // class Button
|
|
|
|
|