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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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