/*
    * Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
    * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
    *
    * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
    * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
    * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
    * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
    * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
   * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
   * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
   * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
   * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
   * OR MODIFICATIONS.
   * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
   * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
   * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
   * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
   */
  
  package de.desy.acop.displayers;
  
  import java.beans.PropertyVetoException;
  import java.util.Map;
  
  import javax.swing.Action;
  
  import com.cosylab.gui.DialKnobDisplayer;
  import com.cosylab.gui.InfoDialog;
  import com.cosylab.gui.displayers.DataConsumer;
  import com.cosylab.gui.displayers.DataState;
  import com.cosylab.gui.displayers.DisplayerUtilities;
  import com.cosylab.gui.displayers.DoubleConsumer;
  import com.cosylab.gui.displayers.DoubleConsumerMulticaster;
  import com.cosylab.gui.displayers.DoubleSeqConsumer;
  import com.cosylab.gui.util.UserSettingsProtection;
  import com.cosylab.util.CommonException;
  
  import de.desy.acop.displayers.tools.AcopDisplayer;
  import de.desy.acop.displayers.tools.AcopDisplayerTransferHandler;
  import de.desy.acop.displayers.tools.AcopInfoDialog;
  import de.desy.acop.transport.ConnectionParameters;
  import de.desy.acop.transport.adapters.AcopTransportDataSource;
  import de.desy.acop.transport.adapters.AdapterFactory;
  import de.desy.acop.transport.adapters.AdapterFactoryService;
  import de.desy.tine.definitions.TArrayType;
   
  /**
   * <code>AcopDialKnob</code> is a single double value displayer.
   * The component consists of a round knob which is sensitive to mouse
   * movement. The needle on the knob shows the value of the dial knob. This value
   * is settable by dragging the knob. In addition to this needle there is a black
   * trailer which shows the value read from the remote property. The position of
   * the trailer is not settable through the user interface.
   * <p>
   * The connection point for this displayer should be set using the 
   * <i>connectionParameters</i> property, where the remote name of the 
   * {@link ConnectionParameters} points to the desired property.
   * </p>
   * 
   * @author <a href="mailto:jaka.bobnar@cosylab.com">Jaka Bobnar</a>
   * @version $Id: Templates.xml,v 1.10 2004/01/13 16:17:13 jbobnar Exp $
   *
   */
  public class AcopDialKnob extends DialKnobDisplayer implements DoubleSeqConsumer,  
  	AcopDisplayer {
  
  	private static final long serialVersionUID = -2686822634461337516L;
  	private ConnectionParameters connectionParameters;
  	private int arrayIndex=0;
  	private AcopInfoDialog dialog;
  
  	/**
  	 * Constructs new AcopDialKnob.
  	 *
  	 */
  	public AcopDialKnob() {
  		super();
  		new AcopDisplayerTransferHandler(this);
  		UserSettingsProtection.setProtection(this,DisplayerUtilities.COMMON_NUMERIC_DISPLAYER_PROPERTIES,false);
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * @see com.cosylab.gui.displayers.DoubleSeqConsumer#updateValue(long, double[])
  	 */
  	public void updateValue(long timestamp, double[] value) throws CommonException {
  	    updateValue(timestamp, DisplayerUtilities.extract(arrayIndex,value));	
      }
  
  	/* (non-Javadoc)
  	 * @see com.cosylab.gui.displayers.DataConsumer#getDataConsumer(java.lang.Class)
  	 */
  	@Override
  	public DataConsumer getDataConsumer(Class type)
  	{
  		if (type == DoubleConsumer.class || type == DoubleSeqConsumer.class) {
 			return this;
 		}
 		
 		return DoubleConsumerMulticaster.createDataConsumer(type, this);
 	}
 	
 	/*
 	 * (non-Javadoc)
 	 * @see de.desy.acop.displayers.AcopDisplayerConnector#getConnectionParameters()
 	 */
 	public ConnectionParameters getConnectionParameters() {
 		return connectionParameters;
 	}
 	
 	/*
 	 * (non-Javadoc)
 	 * @see com.cosylab.gui.DialKnobDisplayer#setCharacteristics(java.util.Map)
 	 */
 	@Override
 	public void setCharacteristics(Map characteristics) {
 		super.setCharacteristics(characteristics);
 		
 		Object o  = characteristics.get("arrayType");
 		if (o != null) {
 			if (((TArrayType)o).isChannel()) {
 				try {
 					UserSettingsProtection.setUnprotected(this,"arrayIndex",0);
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 		}
 	}
 	
 	/*
 	 * (non-Javadoc)
 	 * @see de.desy.acop.displayers.AcopDisplayerConnector#setConnectionParameters(de.desy.acop.transport.ConnectionParameters)
 	 */
 	public void setConnectionParameters(ConnectionParameters param) throws CommonException, PropertyVetoException {
 		if (param!=null && connectionParameters != null) {
 			if(param.equals(connectionParameters)) return;
 		}
 		updateDataState(new DataState(DataState.UNDEFINED));
 		
 		ConnectionParameters old = connectionParameters;
 		this.connectionParameters = param;
 		AdapterFactory factory = AdapterFactoryService.getInstance().getAdapterFactory();
 		
 		if (getDataSource() != null)
 			factory.releaseDataSource((AcopTransportDataSource) getDataSource());
 		if (param == null) {
 			setDataSource(null);
 			setTitle("No Connection");
 		} else {
 			if (param.getPropertySize() == ConnectionParameters.AUTO_PROPERTY_SIZE) {
 				param = param.deriveWithPropertySize(1);
 			}
 			AcopTransportDataSource ds = factory.createDataSource(param);
 			setDataSource(ds);
 		}
 		
 		firePropertyChange(CONNECTION_PARAMETERS_PROPERTY,old, connectionParameters);
 	}
 
 	
 	/*
 	 * (non-Javadoc)
 	 * @see de.desy.acop.displayers.tools.AcopDisplayer#getArrayIndex()
 	 */
 	public int getArrayIndex() {
 		return arrayIndex;
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see de.desy.acop.displayers.tools.AcopDisplayer#setArrayIndex(int)
 	 */
 	public void setArrayIndex(int arrayIndex) {
 		if (this.arrayIndex == arrayIndex) return;
 		int oldValue = this.arrayIndex;
 		this.arrayIndex = arrayIndex;
 		firePropertyChange("arrayIndex", oldValue, this.arrayIndex);
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * @see com.cosylab.gui.DialKnobDisplayer#getInfoDialog()
 	 */
 	@Override
 	public InfoDialog getInfoDialog() {
 		if (dialog == null) {
 			dialog = new AcopInfoDialog(this);
 		}
 		return dialog;
 	}
 	
 	/**
 	 * Enables/disables Properties item in the popup menu.
 	 * @param enable
 	 */
 	public void setPropertiesPopupEnabled(boolean enable) {
 		Action[] actions = getPopupManager().getActions();
 		for (Action a : actions) {
 			if (a != null && "Preferences...".equals(a.getValue(Action.NAME))) {
 				a.setEnabled(enable);
 				return;
 			}
 		}
 	}
 	
 	/**
 	 * Returns true if Properties item is enabled in the popup menu.
 	 * @return
 	 */
 	public boolean isPropertiesPopupEnabled() {
 		Action[] actions = getPopupManager().getActions();
 		for (Action a : actions) {
 			if (a != null && "Preferences...".equals(a.getValue(Action.NAME))) {
 				return a.isEnabled();
 			}
 		}
 		return false;
 	}
 }
 /* __oOo__ */