/*
* Copyright (c) 2004-2011 Marco Maccaferri and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.internal.ats;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.databinding.observable.IDisposeListener;
import org.eclipse.core.databinding.observable.IStaleListener;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.IMapChangeListener;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.map.WritableMap;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.ISetChangeListener;
import org.eclipse.core.databinding.observable.set.SetChangeEvent;
@SuppressWarnings("rawtypes")
public class ViewerObservableMap implements IObservableMap {
private final Realm realm;
private final String key;
private final WritableMap delegate;
private final ISetChangeListener changeListener = new ISetChangeListener() {
@Override
public void handleSetChange(SetChangeEvent event) {
Map additions = new HashMap();
for (Object o : event.diff.getAdditions()) {
ViewItem viewItem = (ViewItem) o;
delegate.put(o, viewItem.getValue(key));
viewItem.addPropertyChangeListener(key, propertyChangeListener);
}
for (Object o : event.diff.getRemovals()) {
ViewItem viewItem = (ViewItem) o;
delegate.remove(viewItem);
viewItem.removePropertyChangeListener(key, propertyChangeListener);
}
delegate.putAll(additions);
}
};
private final PropertyChangeListener propertyChangeListener = new PropertyChangeListener() {
@Override
public void propertyChange(final PropertyChangeEvent evt) {
if (!key.equals(evt.getPropertyName())) {
return;
}
realm.exec(new Runnable() {
@Override
public void run() {
delegate.put(evt.getSource(), evt.getNewValue());
}
});
}
};
public ViewerObservableMap(IObservableSet knownElements, String key) {
this(Realm.getDefault(), knownElements, key);
}
public ViewerObservableMap(Realm realm, IObservableSet knownElements, String key) {
this.realm = realm;
this.key = key;
this.delegate = new WritableMap(realm);
for (Object o : knownElements) {
ViewItem viewItem = (ViewItem) o;
delegate.put(o, viewItem.getValue(key));
viewItem.addPropertyChangeListener(key, propertyChangeListener);
}
knownElements.addSetChangeListener(changeListener);
}
public String getKey() {
return key;
}
/* (non-Javadoc)
* @see java.util.Map#putAll(java.util.Map)
*/
@Override
public void putAll(Map m) {
}
/* (non-Javadoc)
* @see java.util.Map#clear()
*/
@Override
public void clear() {
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#getRealm()
*/
@Override
public Realm getRealm() {
return realm;
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#addChangeListener(org.eclipse.core.databinding.observable.IChangeListener)
*/
@Override
public void addChangeListener(IChangeListener listener) {
delegate.addChangeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#removeChangeListener(org.eclipse.core.databinding.observable.IChangeListener)
*/
@Override
public void removeChangeListener(IChangeListener listener) {
delegate.removeChangeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#addStaleListener(org.eclipse.core.databinding.observable.IStaleListener)
*/
@Override
public void addStaleListener(IStaleListener listener) {
delegate.addStaleListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#removeStaleListener(org.eclipse.core.databinding.observable.IStaleListener)
*/
@Override
public void removeStaleListener(IStaleListener listener) {
delegate.removeStaleListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#isStale()
*/
@Override
public boolean isStale() {
return delegate.isStale();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#addDisposeListener(org.eclipse.core.databinding.observable.IDisposeListener)
*/
@Override
public void addDisposeListener(IDisposeListener listener) {
delegate.addDisposeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#removeDisposeListener(org.eclipse.core.databinding.observable.IDisposeListener)
*/
@Override
public void removeDisposeListener(IDisposeListener listener) {
delegate.removeDisposeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#isDisposed()
*/
@Override
public boolean isDisposed() {
return delegate.isDisposed();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.IObservable#dispose()
*/
@Override
public void dispose() {
delegate.dispose();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#getKeyType()
*/
@Override
public Object getKeyType() {
return null;
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#getValueType()
*/
@Override
public Object getValueType() {
return null;
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#addMapChangeListener(org.eclipse.core.databinding.observable.map.IMapChangeListener)
*/
@Override
public void addMapChangeListener(IMapChangeListener listener) {
delegate.addMapChangeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#removeMapChangeListener(org.eclipse.core.databinding.observable.map.IMapChangeListener)
*/
@Override
public void removeMapChangeListener(IMapChangeListener listener) {
delegate.removeMapChangeListener(listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#size()
*/
@Override
public int size() {
return delegate.size();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#isEmpty()
*/
@Override
public boolean isEmpty() {
return delegate.isEmpty();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#containsKey(java.lang.Object)
*/
@Override
public boolean containsKey(Object key) {
return delegate.containsKey(key);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#containsValue(java.lang.Object)
*/
@Override
public boolean containsValue(Object value) {
return delegate.containsValue(value);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#get(java.lang.Object)
*/
@Override
public Object get(Object key) {
return delegate.get(key);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#put(java.lang.Object, java.lang.Object)
*/
@Override
public Object put(Object key, Object value) {
return delegate.put(key, value);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#remove(java.lang.Object)
*/
@Override
public Object remove(Object key) {
return delegate.remove(key);
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#keySet()
*/
@Override
public Set keySet() {
return delegate.keySet();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#values()
*/
@Override
public Collection values() {
return delegate.values();
}
/* (non-Javadoc)
* @see org.eclipse.core.databinding.observable.map.IObservableMap#entrySet()
*/
@Override
public Set entrySet() {
return delegate.entrySet();
}
}