FlagsPanel.java

/*
 *	FlagsPanel.java
 *  Eisenkraut
 *
 *  Copyright (c) 2004-2016 Hanns Holger Rutz. All rights reserved.
 *
 *  This software is published under the GNU General Public License v3+
 *
 *
 *	For further information, please contact Hanns Holger Rutz at
 *	contact@sciss.de
 */
 
package de.sciss.eisenkraut.session;

import de.sciss.app.DynamicAncestorAdapter;
import de.sciss.app.DynamicListening;
import de.sciss.eisenkraut.util.MapManager;

@SuppressWarnings("serial")
public class FlagsPanel
		extends AbstractFlagsPanel
		implements DynamicListening, SessionCollection.Listener {

	private final SessionCollection sc;
	protected SessionObject so;

	public FlagsPanel(SessionObject so, SessionCollection sc) {
		this(sc);

		this.so = so;
		setOpaque(false);
		new DynamicAncestorAdapter(this).addTo(this);
	}

	protected FlagsPanel(SessionCollection sc) {
		super();

		this.sc = sc;
	}

	// sync : attempt exclusive on doors
	protected void setFlags(int mask, boolean set) {
		int				flags, flagsNew;
		Object			o;
		MapManager		map;
		boolean			soloChange;
	
		map		= so.getMap();
		o		= map.getValue( SessionObject.MAP_KEY_FLAGS );
		flags	= o == null ? 0 : (Integer) o;
		
		if( set ) {
			flagsNew	= flags | mask;
		} else {
			flagsNew	= flags & ~mask;
		}
		soloChange = (mask & SessionObject.FLAGS_SOLO) != 0;
		if( soloChange || (mask & SessionObject.FLAGS_SOLOSAFE) != 0  ) {
			if( set ) {
				flagsNew &= ~SessionObject.FLAGS_VIRTUALMUTE;
			} else if( (flagsNew & SessionObject.FLAGS_SOLO) == 0 &&
					   isAny( SessionObject.FLAGS_SOLO, true )) {
					   
				flagsNew |= SessionObject.FLAGS_VIRTUALMUTE;
			}
		}
		if( flags != flagsNew ) {
			map.putValue( this, SessionObject.MAP_KEY_FLAGS, flagsNew);
		}
		if( soloChange ) broadcastFlags( 0, true );
	}

	// sync : attempt exclusive on doors
	protected void broadcastFlags(int mask, boolean set) {
		int				i, flags, flagsNew;
		SessionObject	so2;
		Object			o;
		MapManager		map;
		boolean			virtualMute	= false;

		if ((mask & SessionObject.FLAGS_SOLO) == 0 &&
				!((mask & SessionObject.FLAGS_SOLOSAFE) != 0 && set)) {

			virtualMute = isAny(SessionObject.FLAGS_SOLO, true);
		}
		for (i = 0; i < sc.size(); i++) {
			so2		= sc.get( i );
			map		= so2.getMap();
			o		= map.getValue( SessionObject.MAP_KEY_FLAGS );
			flags	= o == null ? 0 : (Integer) o;
			
			if( set ) {
				flagsNew	= flags | mask;
			} else {
				flagsNew	= flags & ~mask;
			}
			if( virtualMute && (flagsNew & (SessionObject.FLAGS_SOLO | SessionObject.FLAGS_SOLOSAFE)) == 0 ) {
				flagsNew |= SessionObject.FLAGS_VIRTUALMUTE;
			} else {
				flagsNew &= ~SessionObject.FLAGS_VIRTUALMUTE;
			}
			
			if( flags != flagsNew ) {
				map.putValue( this, SessionObject.MAP_KEY_FLAGS, flagsNew);
			}
		}
	}

	protected boolean isAny(int mask, boolean set) {
		int i, flags;
		SessionObject so2;
		Object o;
		MapManager map;

		for (i = 0; i < sc.size(); i++) {
			so2 = sc.get(i);
			map = so2.getMap();
			o = map.getValue(SessionObject.MAP_KEY_FLAGS);
			flags = o == null ? 0 : (Integer) o;

			if (set) {
				if ((flags & mask) != 0) return true;
			} else {
				if ((flags & mask) == 0) return true;
			}
		}

		return false;
	}

	private void updateButtons() {
		final Object o;
		final int flags;

		o = so.getMap().getValue(SessionObject.MAP_KEY_FLAGS);
		flags = o == null ? 0 : (Integer) o;
		updateButtons(flags);
	}

// ---------------- DynamicListening interface ---------------- 

	public void startListening() {
		updateButtons();
		sc.addListener(this);
	}

	public void stopListening() {
		sc.removeListener(this);
	}

// ---------------- SessionCollection.Listener interface ---------------- 

	public void sessionCollectionChanged( SessionCollection.Event e )
	{
		updateButtons();
	}
	
	public void sessionObjectChanged( SessionCollection.Event e ) { /* ignore */ }
	
	public void sessionObjectMapChanged( SessionCollection.Event e )
	{
		if( e.setContains( SessionObject.MAP_KEY_FLAGS )) {
			updateButtons();
		}
	}
}