jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/editpart/PageflowLinkEditPart.java - jsf/webtools.jsf - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2005 Sybase, Inc. 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:
  *     Sybase, Inc. - initial API and implementation
  *******************************************************************************/

 package org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpart;

 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.core.resources.IResource;
 import org.eclipse.draw2d.IFigure;
 import org.eclipse.draw2d.RelativeBendpoint;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.common.notify.Notifier;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.gef.EditPolicy;
 import org.eclipse.gef.editparts.AbstractConnectionEditPart;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.text.source.Annotation;
 import org.eclipse.jst.jsf.facesconfig.ui.EditorPlugin;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.PageflowMessages;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkBendpointEditPolicy;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkEditPolicy;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkEndpointEditPolicy;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.figure.PFLinkFigure;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLink;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLinkBendpoint;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowPackage;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.properties.PageflowLinkPropertySource;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.synchronization.PFBatchAdapter;
 import org.eclipse.jst.jsf.facesconfig.ui.pageflow.util.PageflowAnnotationUtil;
 import org.eclipse.jst.jsf.facesconfig.ui.preference.GEMPreferences;
 import org.eclipse.jst.jsf.facesconfig.ui.util.WebrootUtil;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.ui.views.properties.IPropertySource;

 /**
  * <code>PFLinkEditPart</code> is the EditPart for PFLink model elements. The
  * figure for this EditPart is simply a PolylineConnection. Because both
  * AbstractConnectionEditPart and the Adapter interface have a getTarget method,
  * we use an inner class to implement the Adapter interface in order to work
  * around the name collision.
  *
  *
  */
 public class PageflowLinkEditPart extends AbstractConnectionEditPart implements
 		IConnectionPreference, IAnnotationEditPart, PFValidator {
 	/** adapter for notification */
 	private PFLinkAdapter adapter = new PFLinkAdapter();

 	/** property source of the pflink */
 	private IPropertySource propertySource = null;

 	/** image description for different edit part */
 	public static final ImageDescriptor IMG_WARNING = EditorPlugin.getDefault()
 			.getImageDescriptor("facesconfig/Pageflow_Quickfix_Error.gif");

 	private int connectionStyle = -1;

 	private PFLinkBendpointEditPolicy bendpointEditPolicy;

 	/**
 	 * @param element
 	 */
 	public PageflowLinkEditPart(PageflowLink element) {
 		super();
 		// element.getPageflow()
 		setModel(element);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see AbstractGraphicalEditPart#createFigure()
 	 */
 	protected IFigure createFigure() {
 		IFigure figure_ = new PFLinkFigure();
 		return figure_;

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see AbstractEditPart#createEditPolicies()
 	 */
 	protected void createEditPolicies() {
 		installEditPolicy(EditPolicy.CONNECTION_ENDPOINTS_ROLE,
 				new PFLinkEndpointEditPolicy());

 		if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
 			installEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE,
 					getBendpointEditPolicy());
 		}
 		//PFLinkEditPolicy policy = new PFLinkEditPolicy();
 		// policy.setSseModel(model);
 		installEditPolicy(EditPolicy.CONNECTION_ROLE, new PFLinkEditPolicy());

 	}

 	private PFLinkBendpointEditPolicy getBendpointEditPolicy() {
 		if (bendpointEditPolicy == null) {
 			bendpointEditPolicy = new PFLinkBendpointEditPolicy();
 		}
 		return bendpointEditPolicy;
 	}

 	public PageflowLink getPFLink() {
 		return (PageflowLink) getModel();
 	}

 	private class PFLinkAdapter extends PFBatchAdapter {
 		private Notifier _newTarget = null;

 		// private IPropertySource _propertySource = null;

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.emf.common.notify.Adapter#getTarget()
 		 */
 		public Notifier getTarget() {
 			return _newTarget;
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.emf.common.notify.Adapter#isAdapterForType(java.lang.Object)
 		 */
 		public boolean isAdapterForType(Object type) {
 			return getModel().getClass() == type;
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.emf.common.notify.Adapter#notifyChanged(org.eclipse.emf.common.notify.Notification)
 		 */
 		public void doNotifyChanged(Notification notification) {
 			int type = notification.getEventType();
 			int featureId = notification.getFeatureID(PageflowPackage.class);
 			// FC2PFTransformer.getInstance().NotifyChanged(notification,
 			// getPFLink());
 			switch (type) {
 			case Notification.ADD:
 			case Notification.ADD_MANY:
 			case Notification.REMOVE:
 			case Notification.SET:
 				if (featureId == PageflowPackage.PF_LINK__OUTCOME
 						|| featureId == PageflowPackage.PF_LINK__SOURCE
 						|| featureId == PageflowPackage.PF_LINK__TARGET) {
 					PageflowAnnotationUtil
 							.validateLink(PageflowLinkEditPart.this);
 				}

 				refreshVisuals();
 				break;
 			}
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.emf.common.notify.Adapter#setTarget(org.eclipse.emf.common.notify.Notifier)
 		 */
 		public void setTarget(Notifier newTarget) {
 			this._newTarget = newTarget;
 		}

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see EditPart#activate()
 	 */
 	public void activate() {
 		getPFLink().eAdapters().add(adapter);
 		//PageflowLink element = (PageflowLink) getModel();
 		super.activate();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see EditPart#deactivate()
 	 */
 	public void deactivate() {
 		// getPFLink().eAdapters().remove(adapter);
 		// PageflowLink element = (PageflowLink) getModel();
 		// NavigationCaseType navCase = ((NavigationCaseType) element
 		// .getFCElements().getData().get(0));
 		// navCase.eAdapters().remove(fcAdapter);
 		// TreeIterator iterator = navCase.eAllContents();
 		// while (iterator.hasNext()) {
 		// ((EObject) iterator.next()).eAdapters().remove(fcAdapter);
 		// }

 		super.deactivate();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see IAdaptable#getAdapter(java.lang.Class)
 	 */
 	public Object getAdapter(Class key) {
 		/*
 		 * override the default behavior defined in AbstractEditPart which would
 		 * expect the model to be a property sourced. instead the editpart can
 		 * provide a property source
 		 */
 		if (key == IPropertySource.class) {
 			return getPropertySource();
 		}
 		return super.getAdapter(key);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see PageflowElementEditPart#getPropertySource()
 	 */
 	protected IPropertySource getPropertySource() {
 		if (propertySource == null) {
 			propertySource = new PageflowLinkPropertySource(getPFLink());
 		}
 		return propertySource;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see AbstractEditPart#refreshVisuals()
 	 */
 	protected void refreshVisuals() {
 		super.refreshVisuals();
 		resetLabel();
 		if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
 			refreshBendpoints();
 		}
 	}

 	/**
 	 * set the bendpoint constraints of the pflink connection
 	 *
 	 */
 	protected void refreshBendpoints() {
 		// bendpoints stored in pflink
 		List modelConstraint = getPFLink().getBendPoints();
 		// bendpoint constraint list
 		List figureConstraint = new ArrayList();
 		for (int i = 0; i < modelConstraint.size(); i++) {
 			PageflowLinkBendpoint wbp = (PageflowLinkBendpoint) modelConstraint
 					.get(i);
 			RelativeBendpoint rbp = new RelativeBendpoint(getConnectionFigure());
 			rbp.setRelativeDimensions(wbp.getFirstRelativeDimension(), wbp
 					.getSecondRelativeDimension());
 			rbp.setWeight((i + 1) / ((float) modelConstraint.size() + 1));
 			figureConstraint.add(rbp);
 		}
 		// set the router constaints.
 		getConnectionFigure().setRoutingConstraint(figureConstraint);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLineWidth(int)
 	 */
 	public void setLineWidth(int w) {
 		((PFLinkFigure) getFigure()).setLineWidth(w);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelVisible(boolean)
 	 */
 	public void setLabelVisible(boolean b) {
 		((PFLinkFigure) getFigure()).setLabelVisible(b);

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setForegroundColor(org.eclipse.swt.graphics.Color)
 	 */
 	public void setForegroundColor(Color c) {
 		((PFLinkFigure) getFigure()).setForegroundColor(c);

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setBackgroundColor(org.eclipse.swt.graphics.Color)
 	 */
 	public void setBackgroundColor(Color c) {
 		((PFLinkFigure) getFigure()).setBackgroundColor(c);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setFont(org.eclipse.swt.graphics.Font)
 	 */
 	public void setFont(Font f) {
 		((PFLinkFigure) getFigure()).setFont(f);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelForeground(org.eclipse.swt.graphics.Color)
 	 */
 	public void setLabelForegroundColor(Color c) {
 		((PFLinkFigure) getFigure()).setLabelForegroundColor(c);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelBackground(org.eclipse.swt.graphics.Color)
 	 */
 	public void setLabelBackgroundColor(Color c) {
 		((PFLinkFigure) getFigure()).setLabelBackgroundColor(c);
 	}

 	private boolean needDrawingLabel() {
 		return (((PageflowLink) getModel()).getOutcome() != null && ((PageflowLink) getModel())
 				.getOutcome().trim().length() > 0);
 	}

 	private boolean needDrawingAction() {
 		return (((PageflowLink) getModel()).getFromaction() != null && ((PageflowLink) getModel())
 				.getFromaction().trim().length() > 0);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IEditPartDecorator#decorateEditPart()
 	 */
 	public void addAnnotation(final Annotation annotation) {
 		getViewer().getControl().getDisplay().asyncExec(new Runnable() {
 			public void run() {
 				((PFLinkFigure) getFigure()).setImage(getImage(IMG_WARNING));
 				((PFLinkFigure) getFigure()).setToolTipText(annotation
 						.getText());
 			}
 		});
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IEditPartDecorator#undecorateEditPart()
 	 */
 	public void removeAnnotation() {
 		getViewer().getControl().getDisplay().asyncExec(new Runnable() {
 			public void run() {
 				((PFLinkFigure) getFigure()).clearIcon();
 				resetLabel();
 			}
 		});
 	}

 	public void resetLabel() {
 		StringBuffer tip = new StringBuffer();
 		if (needDrawingAction()) {
 			((PFLinkFigure) getFigure()).setActionImage();
 			tip.append(PageflowMessages.PageflowLinkEditPart_FromAction).append(
 					((PageflowLink) getModel()).getFromaction());
 		} else if (((PFLinkFigure) getFigure()).getImage() != getImage(IMG_WARNING)) {
 			((PFLinkFigure) getFigure()).clearIcon();
 		}
 		if (needDrawingLabel()) {
 			((PFLinkFigure) getFigure()).setLabel(((PageflowLink) getModel())
 					.getOutcome());
 			if (tip.length() > 0)
 				tip.append("\n");
 			tip.append(PageflowMessages.PageflowLinkEditPart_FromOutcome).append(
 					((PageflowLink) getModel()).getOutcome());
 		} else {
 			((PFLinkFigure) getFigure()).clearOutcome();
 		}
 		((PFLinkFigure) getFigure()).setToolTipText(tip.toString());
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.marker.IEditPartMarker#getMarkerResource()
 	 *
 	 */
 	public IResource getMarkerResource() {
 		// IResource resource = null;
 		// if (getModel() instanceof PFLink)
 		// {
 		// resource =
 		// FacesConfigUtil.getFacesConfigResource(((PFLink)getModel()).getPageflow());
 		// }
 		// FIXME: it should be changed to link to faces-config file.
 		IResource resource = WebrootUtil.getResource((EObject) getModel());
 		return resource;
 	}

 	public static Image getImage(ImageDescriptor imageDescriptor) {
 		Image image = EditorPlugin.getDefault().getImageRegistry().get(
 				imageDescriptor.toString());
 		if (null == image) {
 			EditorPlugin.getDefault().getImageRegistry().put(
 					imageDescriptor.toString(), imageDescriptor);
 			image = EditorPlugin.getDefault().getImageRegistry().get(
 					imageDescriptor.toString());
 		}

 		return image;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setConnectionRouterStyle(int)
 	 */
 	public void setConnectionRouterStyle(int style) {
 		connectionStyle = style;
 		if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
 			installEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE,
 					getBendpointEditPolicy());
 			refreshVisuals();
 		} else {
 			removeEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE);
 			refreshVisuals();
 		}

 	}

 	/**
 	 * get the foreground color from preference
 	 *
 	 */
 	public int getConnectionRouterStyle() {
 		if (this.connectionStyle == -1) {
 			IPreferenceStore store = EditorPlugin.getDefault()
 					.getPreferenceStore();
 			String connectionStyle_ = store
 					.getString(GEMPreferences.LINE_ROUTING);

 			if (GEMPreferences.LINE_ROUTING_MANHATTAN.equals(connectionStyle_)) {
 				this.connectionStyle = ILayerPanePreference.LINE_ROUTING_MANHATTAN;
 			} else {
 				this.connectionStyle = ILayerPanePreference.LINE_ROUTING_MANUAL;
 			}
 		}
 		return this.connectionStyle;
 	}

 	public void validate() {
 		PageflowAnnotationUtil.validateLink(this);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2005 Sybase, Inc. 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:
	* Sybase, Inc. - initial API and implementation
	*******************************************************************************/

	package org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpart;

	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.core.resources.IResource;
	import org.eclipse.draw2d.IFigure;
	import org.eclipse.draw2d.RelativeBendpoint;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.common.notify.Notifier;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.gef.EditPolicy;
	import org.eclipse.gef.editparts.AbstractConnectionEditPart;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.text.source.Annotation;
	import org.eclipse.jst.jsf.facesconfig.ui.EditorPlugin;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.PageflowMessages;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkBendpointEditPolicy;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkEditPolicy;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.editpolicy.PFLinkEndpointEditPolicy;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.figure.PFLinkFigure;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLink;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowLinkBendpoint;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowPackage;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.properties.PageflowLinkPropertySource;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.synchronization.PFBatchAdapter;
	import org.eclipse.jst.jsf.facesconfig.ui.pageflow.util.PageflowAnnotationUtil;
	import org.eclipse.jst.jsf.facesconfig.ui.preference.GEMPreferences;
	import org.eclipse.jst.jsf.facesconfig.ui.util.WebrootUtil;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.ui.views.properties.IPropertySource;

	/**
	* <code>PFLinkEditPart</code> is the EditPart for PFLink model elements. The
	* figure for this EditPart is simply a PolylineConnection. Because both
	* AbstractConnectionEditPart and the Adapter interface have a getTarget method,
	* we use an inner class to implement the Adapter interface in order to work
	* around the name collision.
	*
	*
	*/
	public class PageflowLinkEditPart extends AbstractConnectionEditPart implements
	IConnectionPreference, IAnnotationEditPart, PFValidator {
	/** adapter for notification */
	private PFLinkAdapter adapter = new PFLinkAdapter();

	/** property source of the pflink */
	private IPropertySource propertySource = null;

	/** image description for different edit part */
	public static final ImageDescriptor IMG_WARNING = EditorPlugin.getDefault()
	.getImageDescriptor("facesconfig/Pageflow_Quickfix_Error.gif");

	private int connectionStyle = -1;

	private PFLinkBendpointEditPolicy bendpointEditPolicy;

	/**
	* @param element
	*/
	public PageflowLinkEditPart(PageflowLink element) {
	super();
	// element.getPageflow()
	setModel(element);
	}

	/*
	* (non-Javadoc)
	*
	* @see AbstractGraphicalEditPart#createFigure()
	*/
	protected IFigure createFigure() {
	IFigure figure_ = new PFLinkFigure();
	return figure_;

	}

	/*
	* (non-Javadoc)
	*
	* @see AbstractEditPart#createEditPolicies()
	*/
	protected void createEditPolicies() {
	installEditPolicy(EditPolicy.CONNECTION_ENDPOINTS_ROLE,
	new PFLinkEndpointEditPolicy());

	if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
	installEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE,
	getBendpointEditPolicy());
	}
	//PFLinkEditPolicy policy = new PFLinkEditPolicy();
	// policy.setSseModel(model);
	installEditPolicy(EditPolicy.CONNECTION_ROLE, new PFLinkEditPolicy());

	}

	private PFLinkBendpointEditPolicy getBendpointEditPolicy() {
	if (bendpointEditPolicy == null) {
	bendpointEditPolicy = new PFLinkBendpointEditPolicy();
	}
	return bendpointEditPolicy;
	}

	public PageflowLink getPFLink() {
	return (PageflowLink) getModel();
	}

	private class PFLinkAdapter extends PFBatchAdapter {
	private Notifier _newTarget = null;

	// private IPropertySource _propertySource = null;

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.common.notify.Adapter#getTarget()
	*/
	public Notifier getTarget() {
	return _newTarget;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.common.notify.Adapter#isAdapterForType(java.lang.Object)
	*/
	public boolean isAdapterForType(Object type) {
	return getModel().getClass() == type;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.common.notify.Adapter#notifyChanged(org.eclipse.emf.common.notify.Notification)
	*/
	public void doNotifyChanged(Notification notification) {
	int type = notification.getEventType();
	int featureId = notification.getFeatureID(PageflowPackage.class);
	// FC2PFTransformer.getInstance().NotifyChanged(notification,
	// getPFLink());
	switch (type) {
	case Notification.ADD:
	case Notification.ADD_MANY:
	case Notification.REMOVE:
	case Notification.SET:
	if (featureId == PageflowPackage.PF_LINK__OUTCOME
	\|\| featureId == PageflowPackage.PF_LINK__SOURCE
	\|\| featureId == PageflowPackage.PF_LINK__TARGET) {
	PageflowAnnotationUtil
	.validateLink(PageflowLinkEditPart.this);
	}

	refreshVisuals();
	break;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.common.notify.Adapter#setTarget(org.eclipse.emf.common.notify.Notifier)
	*/
	public void setTarget(Notifier newTarget) {
	this._newTarget = newTarget;
	}

	}

	/*
	* (non-Javadoc)
	*
	* @see EditPart#activate()
	*/
	public void activate() {
	getPFLink().eAdapters().add(adapter);
	//PageflowLink element = (PageflowLink) getModel();
	super.activate();
	}

	/*
	* (non-Javadoc)
	*
	* @see EditPart#deactivate()
	*/
	public void deactivate() {
	// getPFLink().eAdapters().remove(adapter);
	// PageflowLink element = (PageflowLink) getModel();
	// NavigationCaseType navCase = ((NavigationCaseType) element
	// .getFCElements().getData().get(0));
	// navCase.eAdapters().remove(fcAdapter);
	// TreeIterator iterator = navCase.eAllContents();
	// while (iterator.hasNext()) {
	// ((EObject) iterator.next()).eAdapters().remove(fcAdapter);
	// }

	super.deactivate();
	}

	/*
	* (non-Javadoc)
	*
	* @see IAdaptable#getAdapter(java.lang.Class)
	*/
	public Object getAdapter(Class key) {
	/*
	* override the default behavior defined in AbstractEditPart which would
	* expect the model to be a property sourced. instead the editpart can
	* provide a property source
	*/
	if (key == IPropertySource.class) {
	return getPropertySource();
	}
	return super.getAdapter(key);
	}

	/*
	* (non-Javadoc)
	*
	* @see PageflowElementEditPart#getPropertySource()
	*/
	protected IPropertySource getPropertySource() {
	if (propertySource == null) {
	propertySource = new PageflowLinkPropertySource(getPFLink());
	}
	return propertySource;
	}

	/*
	* (non-Javadoc)
	*
	* @see AbstractEditPart#refreshVisuals()
	*/
	protected void refreshVisuals() {
	super.refreshVisuals();
	resetLabel();
	if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
	refreshBendpoints();
	}
	}

	/**
	* set the bendpoint constraints of the pflink connection
	*
	*/
	protected void refreshBendpoints() {
	// bendpoints stored in pflink
	List modelConstraint = getPFLink().getBendPoints();
	// bendpoint constraint list
	List figureConstraint = new ArrayList();
	for (int i = 0; i < modelConstraint.size(); i++) {
	PageflowLinkBendpoint wbp = (PageflowLinkBendpoint) modelConstraint
	.get(i);
	RelativeBendpoint rbp = new RelativeBendpoint(getConnectionFigure());
	rbp.setRelativeDimensions(wbp.getFirstRelativeDimension(), wbp
	.getSecondRelativeDimension());
	rbp.setWeight((i + 1) / ((float) modelConstraint.size() + 1));
	figureConstraint.add(rbp);
	}
	// set the router constaints.
	getConnectionFigure().setRoutingConstraint(figureConstraint);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLineWidth(int)
	*/
	public void setLineWidth(int w) {
	((PFLinkFigure) getFigure()).setLineWidth(w);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelVisible(boolean)
	*/
	public void setLabelVisible(boolean b) {
	((PFLinkFigure) getFigure()).setLabelVisible(b);

	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setForegroundColor(org.eclipse.swt.graphics.Color)
	*/
	public void setForegroundColor(Color c) {
	((PFLinkFigure) getFigure()).setForegroundColor(c);

	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setBackgroundColor(org.eclipse.swt.graphics.Color)
	*/
	public void setBackgroundColor(Color c) {
	((PFLinkFigure) getFigure()).setBackgroundColor(c);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IFigurePreference#setFont(org.eclipse.swt.graphics.Font)
	*/
	public void setFont(Font f) {
	((PFLinkFigure) getFigure()).setFont(f);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelForeground(org.eclipse.swt.graphics.Color)
	*/
	public void setLabelForegroundColor(Color c) {
	((PFLinkFigure) getFigure()).setLabelForegroundColor(c);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setLabelBackground(org.eclipse.swt.graphics.Color)
	*/
	public void setLabelBackgroundColor(Color c) {
	((PFLinkFigure) getFigure()).setLabelBackgroundColor(c);
	}

	private boolean needDrawingLabel() {
	return (((PageflowLink) getModel()).getOutcome() != null && ((PageflowLink) getModel())
	.getOutcome().trim().length() > 0);
	}

	private boolean needDrawingAction() {
	return (((PageflowLink) getModel()).getFromaction() != null && ((PageflowLink) getModel())
	.getFromaction().trim().length() > 0);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IEditPartDecorator#decorateEditPart()
	*/
	public void addAnnotation(final Annotation annotation) {
	getViewer().getControl().getDisplay().asyncExec(new Runnable() {
	public void run() {
	((PFLinkFigure) getFigure()).setImage(getImage(IMG_WARNING));
	((PFLinkFigure) getFigure()).setToolTipText(annotation
	.getText());
	}
	});
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IEditPartDecorator#undecorateEditPart()
	*/
	public void removeAnnotation() {
	getViewer().getControl().getDisplay().asyncExec(new Runnable() {
	public void run() {
	((PFLinkFigure) getFigure()).clearIcon();
	resetLabel();
	}
	});
	}

	public void resetLabel() {
	StringBuffer tip = new StringBuffer();
	if (needDrawingAction()) {
	((PFLinkFigure) getFigure()).setActionImage();
	tip.append(PageflowMessages.PageflowLinkEditPart_FromAction).append(
	((PageflowLink) getModel()).getFromaction());
	} else if (((PFLinkFigure) getFigure()).getImage() != getImage(IMG_WARNING)) {
	((PFLinkFigure) getFigure()).clearIcon();
	}
	if (needDrawingLabel()) {
	((PFLinkFigure) getFigure()).setLabel(((PageflowLink) getModel())
	.getOutcome());
	if (tip.length() > 0)
	tip.append("\n");
	tip.append(PageflowMessages.PageflowLinkEditPart_FromOutcome).append(
	((PageflowLink) getModel()).getOutcome());
	} else {
	((PFLinkFigure) getFigure()).clearOutcome();
	}
	((PFLinkFigure) getFigure()).setToolTipText(tip.toString());
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.marker.IEditPartMarker#getMarkerResource()
	*
	*/
	public IResource getMarkerResource() {
	// IResource resource = null;
	// if (getModel() instanceof PFLink)
	// {
	// resource =
	// FacesConfigUtil.getFacesConfigResource(((PFLink)getModel()).getPageflow());
	// }
	// FIXME: it should be changed to link to faces-config file.
	IResource resource = WebrootUtil.getResource((EObject) getModel());
	return resource;
	}

	public static Image getImage(ImageDescriptor imageDescriptor) {
	Image image = EditorPlugin.getDefault().getImageRegistry().get(
	imageDescriptor.toString());
	if (null == image) {
	EditorPlugin.getDefault().getImageRegistry().put(
	imageDescriptor.toString(), imageDescriptor);
	image = EditorPlugin.getDefault().getImageRegistry().get(
	imageDescriptor.toString());
	}

	return image;
	}

	/*
	* (non-Javadoc)
	*
	* @see com.sybase.stf.jmt.editors.pageflow.editparts.IConnectionPreference#setConnectionRouterStyle(int)
	*/
	public void setConnectionRouterStyle(int style) {
	connectionStyle = style;
	if (getConnectionRouterStyle() == ILayerPanePreference.LINE_ROUTING_MANUAL) {
	installEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE,
	getBendpointEditPolicy());
	refreshVisuals();
	} else {
	removeEditPolicy(EditPolicy.CONNECTION_BENDPOINTS_ROLE);
	refreshVisuals();
	}

	}

	/**
	* get the foreground color from preference
	*
	*/
	public int getConnectionRouterStyle() {
	if (this.connectionStyle == -1) {
	IPreferenceStore store = EditorPlugin.getDefault()
	.getPreferenceStore();
	String connectionStyle_ = store
	.getString(GEMPreferences.LINE_ROUTING);

	if (GEMPreferences.LINE_ROUTING_MANHATTAN.equals(connectionStyle_)) {
	this.connectionStyle = ILayerPanePreference.LINE_ROUTING_MANHATTAN;
	} else {
	this.connectionStyle = ILayerPanePreference.LINE_ROUTING_MANUAL;
	}
	}
	return this.connectionStyle;
	}

	public void validate() {
	PageflowAnnotationUtil.validateLink(this);
	}
	}