// ClassAttributeEditor.java
// $Id: ClassAttributeEditor.java,v 1.5 2000/08/16 21:37:26 ylafon Exp $
// (c) COPYRIGHT MIT and INRIA, 1997.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.jigadm.editors ;
import java.awt.Component;
import java.awt.TextComponent;
import java.awt.TextField;
import java.util.Properties;
import org.w3c.tools.resources.Attribute;
import org.w3c.jigsaw.admin.RemoteAccessException;
import org.w3c.jigsaw.admin.RemoteResource;
import org.w3c.jigadm.RemoteResourceWrapper;
import org.w3c.tools.widgets.MessagePopup;
/**
* ClassAttributeEditor :
* @author Benoit Mahe <bmahe@sophia.inria.fr>
*/
public class ClassAttributeEditor extends AttributeEditor {
private Class origs;
TextField widget;
/**
* Tells if the edited value has changed
* @return true if the value changed.
*/
public boolean hasChanged() {
return ! ((origs.getName()).equals(widget.getText()));
}
/**
* set the current value to be the original value, ie: changed
* must return <strong>false</strong> after a reset.
*/
public void clearChanged() {
origs = getClassAttribute();
}
/**
* reset the changes (if any)
*/
public void resetChanges() {
setClassAttribute(origs);
}
protected void setClassAttribute(Class c) {
if (c != null)
widget.setText(c.getName());
else
widget.setText("");
}
protected Class getClassAttribute() {
String classname = widget.getText();
if (classname != null)
if (classname.length() > 0) {
try {
Class c = Class.forName(classname);
return c;
} catch (ClassNotFoundException ex) {
(new MessagePopup("Error","Class not found : "+
classname)).show();
return null;
}
}
return null;
}
/**
* Get the current value of the edited value
* @return an object or <strong>null</strong> if the object was not
* initialized
*/
public Object getValue() {
return getClassAttribute();
}
/**
* Set the value of the edited value
* @param o the new value.
*/
public void setValue(Object o) {
setClassAttribute((Class)o);
}
/**
* get the Component created by the editor.
* @return a Component
*/
public Component getComponent() {
return widget;
}
/**
* Initialize the editor
* @param w the ResourceWrapper father of the attribute
* @param a the Attribute we are editing
* @param o the value of the above attribute
* @param p some Properties, used to fine-tune the editor
* @exception RemoteAccessException if a remote access error occurs.
*/
public void initialize(RemoteResourceWrapper w,
Attribute a,
Object o,
Properties p)
throws RemoteAccessException
{
RemoteResource r = w.getResource();
if(o == null) {
Class v = null;
// FIXME
v = (Class) r.getValue(a.getName());
if(v == null)
if(a.getDefault() != null)
v = (Class)a.getDefault();
if ( v != null ) {
origs = v;
setClassAttribute(origs);
}
} else {
origs = (Class)o;
}
setClassAttribute(origs);
}
public ClassAttributeEditor() {
widget = new TextField();
}
}