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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2000 Intersect Software Corporation
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.ui.swing;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSSelector;
import net.wotonomy.foundation.internal.WotonomyException;
import net.wotonomy.ui.EODisplayGroup;
/**
* ActionAssociation binds any ActionEvent broadcaster
* (typically Buttons and the like) to a display group,
* but invokes actions directly on the bound display
* group rather than the selected objects.
* Bindings are:
* <ul>
* <li>action: a method to be invoked on the bound display group.
* If the argument aspect is bound, the method must take
* one argument. Otherwise, the method must take no arguments.</li>
* <li>argument: the attribute of the selected object(s) (possibly
* from a different display group) that will be used as an argument
* to the action method</li>
* <li>enabled: a boolean property that determines whether
* the controlled component is enabled</li>
* <li>visible: a boolean property that determines whether
* the controlled component is visible</li>
* </ul>
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 904 $
*/
public class DisplayGroupActionAssociation extends ActionAssociation
{
static final NSArray aspects =
new NSArray( new Object[] {
ActionAspect, ArgumentAspect, EnabledAspect, VisibleAspect
} );
static final NSArray aspectSignatures =
new NSArray( new Object[] {
AttributeToOneAspectSignature,
AttributeToOneAspectSignature,
AttributeToOneAspectSignature,
AttributeToOneAspectSignature
} );
static final NSArray objectKeysTaken =
new NSArray( new Object[] {
"target"
} );
static NSSelector addActionListener =
new NSSelector( "addActionListener",
new Class[] { ActionListener.class } );
static NSSelector removeActionListener =
new NSSelector( "removeActionListener",
new Class[] { ActionListener.class } );
/**
* Constructor specifying the object to be controlled by this
* association. Does not establish connection.
*/
public DisplayGroupActionAssociation ( Object anObject )
{
super( anObject );
}
// interface ActionListener
public void actionPerformed( ActionEvent evt )
{
EODisplayGroup actionDisplayGroup = null;
String actionKey = null;
// action aspect
actionDisplayGroup = displayGroupForAspect( ActionAspect );
if ( actionDisplayGroup != null )
{
actionKey = displayGroupKeyForAspect( ActionAspect );
//TODO: argument aspect not implemented
try
{
NSSelector.invoke( actionKey, actionDisplayGroup );
}
catch ( Exception exc )
{
throw new WotonomyException( "DisplayGroupActionAssociation: "
+ "error invoking action: " + actionKey, exc );
}
}
}
}
/*
* $Log$
* Revision 1.2 2006/02/18 23:19:05 cgruber
* Update imports and maven dependencies.
*
* Revision 1.1 2006/02/16 13:22:22 cgruber
* Check in all sources in eclipse-friendly maven-enabled packages.
*
* Revision 1.2 2003/08/06 23:07:52 chochos
* general code cleanup (mostly, removing unused imports)
*
* Revision 1.1.1.1 2000/12/21 15:48:46 mpowers
* Contributing wotonomy.
*
* Revision 1.3 2000/12/20 16:25:40 michael
* Added log to all files.
*
*
*/
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