plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/merrimac/dialogs/ObjectEditor.java - bpmn2-modeler/org.eclipse.bpmn2-modeler - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011, 2012 Red Hat, Inc.
  *  All rights reserved.
  * This program is 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:
  * Red Hat, Inc. - initial API and implementation
  *
  * @author Bob Brodt
  ******************************************************************************/

 package org.eclipse.bpmn2.modeler.core.merrimac.dialogs;

 import org.eclipse.bpmn2.modeler.core.ToolTipProvider;
 import org.eclipse.bpmn2.modeler.core.adapters.ExtendedPropertiesAdapter;
 import org.eclipse.bpmn2.modeler.core.merrimac.DefaultBusinessObjectDelegate;
 import org.eclipse.bpmn2.modeler.core.merrimac.IBusinessObjectDelegate;
 import org.eclipse.bpmn2.modeler.core.merrimac.IConstants;
 import org.eclipse.bpmn2.modeler.core.merrimac.clad.AbstractDetailComposite;
 import org.eclipse.bpmn2.modeler.core.utils.ErrorUtils;
 import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
 import org.eclipse.bpmn2.modeler.core.validation.ValidationStatusAdapter;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.util.EcoreUtil;
 import org.eclipse.emf.edit.provider.INotifyChangedListener;
 import org.eclipse.emf.validation.model.ConstraintStatus;
 import org.eclipse.graphiti.mm.pictograms.Diagram;
 import org.eclipse.graphiti.ui.editor.DiagramEditor;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.fieldassist.ControlDecoration;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.FocusEvent;
 import org.eclipse.swt.events.FocusListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.ISharedImages;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.forms.widgets.FormToolkit;

 /**
  * Base class for EObject feature editors. All subclasses must render the given object's feature,
  * which may be either an attribute, a reference to an EObject, or a list of EObject references.
  * Subclasses must also provide means to populate the display widgets from the feature and save
  * modifications to the feature made in the display widget.
  *
  * @author Bob Brodt
  */
 public abstract class ObjectEditor implements INotifyChangedListener {

 	public static int ID_CREATE_BUTTON = 1;
 	public static int ID_EDIT_BUTTON = 2;
 	public static int ID_DELETE_BUTTON = 3;
 	public static int ID_OTHER_BUTTONS = 4;

 	protected EObject object;
 	protected EStructuralFeature feature;
 	protected AbstractDetailComposite parent;
 	private Label label;
 	protected ControlDecoration decoration;
 	protected int style;
 	protected boolean isWidgetUpdating = false;
 	private IBusinessObjectDelegate boDelegate;
 	private boolean valueChanged = false;

 	public ObjectEditor(AbstractDetailComposite parent, EObject object, EStructuralFeature feature) {
 		this.parent = parent;
 		this.object = object;
 		this.feature = feature;
 		this.style = SWT.NONE;
 	}

 	/**
 	 * This must be implemented by the ObjectEditor subclasses and should not be made public - clients
 	 * should use one of the public createControl() methods instead so that the notifyChange listeners
 	 * are hooked in to the change notification chain.
 	 *
 	 * @param composite - parent composite for this ObjectEditor control
 	 * @param label - a text label displayed to the left of the control
 	 * @param style - editor control SWT style flags
 	 * @return the control created by the ObjectEditor subclasses (e.g. a Text, or Combo)
 	 */
 	protected abstract Control createControl(Composite composite, String label, int style);

 	public void setStyle(int style) {
 		this.style = style;
 	}

 	public Control createControl(Composite composite, String label) {
 		final Control c = createControl(composite,label,style);
 		c.setData(IConstants.NOTIFY_CHANGE_LISTENER_KEY, this);
 		c.addFocusListener(new FocusListener() {

 			@Override
 			public void focusGained(FocusEvent e) {
 				valueChanged = false;
 			}

 			@Override
 			public void focusLost(FocusEvent e) {
 				if (valueChanged) {
 					IStatus status = parent.validate();
 					if (status.getSeverity() >= Status.ERROR) {
 						if (statusApplies(status)) {
 							MessageDialog.openError(parent.getShell(), Messages.ObjectEditor_Validation_Error_Title, status.getMessage());
 							if (!c.isDisposed())
 								c.setFocus();
 						}
 					}
 				}
 				ErrorUtils.showErrorMessage(null);
  			}
 		});
 		return c;
 	}

 	public Control createControl(String label) {
 		return createControl(parent,label);
 	}

 	public IBusinessObjectDelegate getBusinessObjectDelegate() {
 		if (boDelegate==null)
 			boDelegate = new DefaultBusinessObjectDelegate(getDiagramEditor().getEditingDomain());
 		return boDelegate;
 	}

 	protected Object getExtendedProperty(String property) {
 		Object result = null;
 		ExtendedPropertiesAdapter adapter = ExtendedPropertiesAdapter.adapt(object);
 		if (adapter!=null && feature!=null) {
 			result = adapter.getProperty(feature, property);
 		}
 		return result;
 	}

 	protected void setExtendedProperty(String property, Object value) {
 		ExtendedPropertiesAdapter adapter = ExtendedPropertiesAdapter.adapt(object);
 		if (adapter!=null && feature!=null) {
 			adapter.setProperty(feature, property, value);
 		}
 	}

 	public EStructuralFeature getFeature() {
 		return feature;
 	}

 	public EObject getObject() {
 		return object;
 	}

 	public void setObject(EObject object) {
 		this.object = object;
 	}

 	public void setObject(EObject object, EStructuralFeature feature) {
 		this.object = object;
 		this.feature = feature;
 	}

 	protected FormToolkit getToolkit() {
 		return parent.getToolkit();
 	}

 	protected DiagramEditor getDiagramEditor() {
 		return parent.getDiagramEditor();
 	}

 	protected Diagram getDiagram() {
 		return getDiagramEditor().getDiagramTypeProvider().getDiagram();
 	}

 	protected Label createLabel(Composite parent, String name) {
 		label = getToolkit().createLabel(parent, name);
 		label.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 		updateLabelDecorator();
 		return label;
 	}

 	public Label getLabel() {
 		return label;
 	}

 	private boolean statusApplies(IStatus status) {
         if (status instanceof ConstraintStatus) {
         	ConstraintStatus cs = (ConstraintStatus)status;
         	for (EObject f : cs.getResultLocus()) {
         		if (f instanceof EStructuralFeature && f==this.feature) {
         			return true;
         		}
         	}
         }
         return false;
 	}

 	protected FeatureEditingDialog createFeatureEditingDialog(EObject value) {
 		FeatureEditingDialog dialog = new FeatureEditingDialog(getDiagramEditor(), object, feature, value) {
 			public void aboutToOpen() {
 				// Pass the container object along to the dialog so that
 				// it can be set in its detail composites. This is used
 				// if a detail composite needs to display additional information
 				// depending on what type of referencing object created the
 				// feature editing dialog.
 				dialogContent.setData("container", object);
 				super.aboutToOpen();
 			}
 		};
 		return dialog;
 	}

 	/**
 	 * Returns a descriptive text string for use as a tooltip on the Label for this editor.
 	 * The default implementation constructs a key from the object and feature name owned by this
 	 * editor, and looks up the description text in the messages resource of the parent plugin.
 	 *
 	 * @return
 	 */
 	protected String getToolTipText() {
 		String text = (String) getExtendedProperty(ExtendedPropertiesAdapter.LONG_DESCRIPTION);
 		if (text==null || text.isEmpty())
 			text = ToolTipProvider.INSTANCE.getToolTip(parent, object, feature);
    		if (text==null || text.isEmpty())
    			text = NLS.bind(Messages.ObjectEditor_No_Description, label.getText());

    		setExtendedProperty(ExtendedPropertiesAdapter.LONG_DESCRIPTION, text);
     	return text;
 	}

 	/**
 	 * Updates the error decorators and tooltips of this editor's Label widget.
 	 */
 	protected void updateLabelDecorator() {

 		if (label!=null && !label.isDisposed()) {
 			String tooltip = label.getToolTipText();

 			if (tooltip==null && object!=null && feature!=null) {
 	   			label.setToolTipText(getToolTipText());
 			}


 			boolean applies = false;
 	    	String text = null;
 	    	String image = null;

 	    	if (isVisible()) {
 		        ValidationStatusAdapter statusAdapter = (ValidationStatusAdapter) EcoreUtil.getRegisteredAdapter(
 		        		object, ValidationStatusAdapter.class);
 		        if (statusAdapter != null) {
 		            final IStatus status = statusAdapter.getValidationStatus();
 //		            System.out.println(status.getMessage());
 		            if (status.isMultiStatus()) {
 		            	for (IStatus s : status.getChildren()) {
 		            		if (statusApplies(s)) {
 		            			applies = true;
 		            			break;
 		            		}
 		            	}
 		            }
 		            else if (statusApplies(status))
 		            	applies = true;

 		            if (applies) {
 			            text = status.getMessage();
 			            switch (status.getSeverity()) {
 			            case IStatus.INFO:
 			                image = ISharedImages.IMG_OBJS_INFO_TSK;
 			                break;
 			            case IStatus.WARNING:
 			                image = ISharedImages.IMG_DEC_FIELD_WARNING;
 			                break;
 			            case IStatus.ERROR:
 			                image = ISharedImages.IMG_DEC_FIELD_ERROR;
 			                break;
 			            default:
 			                break;
 			            }
 		            }
 		        }
 			}

 	        if (applies) {
 	        	if (decoration==null) {
 	        		decoration = new ControlDecoration(label, SWT.TOP | SWT.LEFT);
 	        	}
 	        	decoration.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(image));
 	        	decoration.show();
 	        	decoration.setDescriptionText(text);
 	        }
 	        else {
 	        	if (decoration!=null) {
 	        		decoration.hide();
 	        		decoration.dispose();
 	        		decoration = null;
 	        	}
 	        }
 		}
 	}

 	public boolean setValue(final Object result) {
 		boolean success = getBusinessObjectDelegate().setValue(object, feature, result);
 		if (!success) {
 			showErrorMessage(
 				NLS.bind(
 					Messages.ObjectEditor_Set_Error_Message,
 					new Object[] {
 						getBusinessObjectDelegate().getTextValue(object),
 						getBusinessObjectDelegate().getLabel(object,feature),
 						ModelUtil.getTextValue(result)
 					}
 				)
 			);
 			return false;
 		}
 		valueChanged = true;
 		return true;
 	}

 	protected void showErrorMessage(String message) {
 		ErrorUtils.showErrorMessage(message);
 	}

 	public abstract Object getValue();

 	@Override
 	public void notifyChanged(Notification notification) {
 		updateLabelDecorator();
 	}

 	public void setVisible(boolean visible) {
 		label.setVisible(visible);
 		GridData data = (GridData)label.getLayoutData();
 		data.exclude = !visible;
 		updateLabelDecorator();
 	}

 	public boolean isVisible() {
 		return label.isVisible();
 	}

 	public void dispose() {
 		if (label!=null && !label.isDisposed()) {
 			label.dispose();
 			label = null;
 		}
 		if (decoration!=null) {
     		decoration.hide();
 			decoration.dispose();
 			decoration = null;
 		}
 	}

 	public Control getControl() {
 		return label;
 	}

 	protected boolean isMultiLineText() {
 		return getBusinessObjectDelegate().isMultiLineText(object,feature);
 	}

 	protected boolean canEdit() {
 		return getBusinessObjectDelegate().canEdit(object,feature);
 	}

 	protected boolean canCreateNew() {
 		return getBusinessObjectDelegate().canCreateNew(object,feature);
 	}

 	protected boolean canEditInline() {
 		return getBusinessObjectDelegate().canEditInline(object,feature);
 	}

 	protected boolean canSetNull() {
 		return getBusinessObjectDelegate().canSetNull(object,feature);
 	}

 	protected boolean canAdd() {
 		return false;
 	}

 	protected boolean canRemove() {
 		return false;
 	}

 	public void setEditable(boolean editable) {
 		Control control = getControl();
 		if (control instanceof Text) {
 			((Text)control).setEditable(editable);
 			control.setBackground(control.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
 			control.setForeground(control.getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND));
 			control.setData(AbstractObjectEditingDialog.DO_NOT_ADAPT, Boolean.TRUE);
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2011, 2012 Red Hat, Inc.
	* All rights reserved.
	* This program is 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:
	* Red Hat, Inc. - initial API and implementation
	*
	* @author Bob Brodt
	******************************************************************************/

	package org.eclipse.bpmn2.modeler.core.merrimac.dialogs;

	import org.eclipse.bpmn2.modeler.core.ToolTipProvider;
	import org.eclipse.bpmn2.modeler.core.adapters.ExtendedPropertiesAdapter;
	import org.eclipse.bpmn2.modeler.core.merrimac.DefaultBusinessObjectDelegate;
	import org.eclipse.bpmn2.modeler.core.merrimac.IBusinessObjectDelegate;
	import org.eclipse.bpmn2.modeler.core.merrimac.IConstants;
	import org.eclipse.bpmn2.modeler.core.merrimac.clad.AbstractDetailComposite;
	import org.eclipse.bpmn2.modeler.core.utils.ErrorUtils;
	import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
	import org.eclipse.bpmn2.modeler.core.validation.ValidationStatusAdapter;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.util.EcoreUtil;
	import org.eclipse.emf.edit.provider.INotifyChangedListener;
	import org.eclipse.emf.validation.model.ConstraintStatus;
	import org.eclipse.graphiti.mm.pictograms.Diagram;
	import org.eclipse.graphiti.ui.editor.DiagramEditor;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.fieldassist.ControlDecoration;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.FocusEvent;
	import org.eclipse.swt.events.FocusListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.ISharedImages;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.forms.widgets.FormToolkit;

	/**
	* Base class for EObject feature editors. All subclasses must render the given object's feature,
	* which may be either an attribute, a reference to an EObject, or a list of EObject references.
	* Subclasses must also provide means to populate the display widgets from the feature and save
	* modifications to the feature made in the display widget.
	*
	* @author Bob Brodt
	*/
	public abstract class ObjectEditor implements INotifyChangedListener {

	public static int ID_CREATE_BUTTON = 1;
	public static int ID_EDIT_BUTTON = 2;
	public static int ID_DELETE_BUTTON = 3;
	public static int ID_OTHER_BUTTONS = 4;

	protected EObject object;
	protected EStructuralFeature feature;
	protected AbstractDetailComposite parent;
	private Label label;
	protected ControlDecoration decoration;
	protected int style;
	protected boolean isWidgetUpdating = false;
	private IBusinessObjectDelegate boDelegate;
	private boolean valueChanged = false;

	public ObjectEditor(AbstractDetailComposite parent, EObject object, EStructuralFeature feature) {
	this.parent = parent;
	this.object = object;
	this.feature = feature;
	this.style = SWT.NONE;
	}

	/**
	* This must be implemented by the ObjectEditor subclasses and should not be made public - clients
	* should use one of the public createControl() methods instead so that the notifyChange listeners
	* are hooked in to the change notification chain.
	*
	* @param composite - parent composite for this ObjectEditor control
	* @param label - a text label displayed to the left of the control
	* @param style - editor control SWT style flags
	* @return the control created by the ObjectEditor subclasses (e.g. a Text, or Combo)
	*/
	protected abstract Control createControl(Composite composite, String label, int style);

	public void setStyle(int style) {
	this.style = style;
	}

	public Control createControl(Composite composite, String label) {
	final Control c = createControl(composite,label,style);
	c.setData(IConstants.NOTIFY_CHANGE_LISTENER_KEY, this);
	c.addFocusListener(new FocusListener() {

	@Override
	public void focusGained(FocusEvent e) {
	valueChanged = false;
	}

	@Override
	public void focusLost(FocusEvent e) {
	if (valueChanged) {
	IStatus status = parent.validate();
	if (status.getSeverity() >= Status.ERROR) {
	if (statusApplies(status)) {
	MessageDialog.openError(parent.getShell(), Messages.ObjectEditor_Validation_Error_Title, status.getMessage());
	if (!c.isDisposed())
	c.setFocus();
	}
	}
	}
	ErrorUtils.showErrorMessage(null);
	}
	});
	return c;
	}

	public Control createControl(String label) {
	return createControl(parent,label);
	}

	public IBusinessObjectDelegate getBusinessObjectDelegate() {
	if (boDelegate==null)
	boDelegate = new DefaultBusinessObjectDelegate(getDiagramEditor().getEditingDomain());
	return boDelegate;
	}

	protected Object getExtendedProperty(String property) {
	Object result = null;
	ExtendedPropertiesAdapter adapter = ExtendedPropertiesAdapter.adapt(object);
	if (adapter!=null && feature!=null) {
	result = adapter.getProperty(feature, property);
	}
	return result;
	}

	protected void setExtendedProperty(String property, Object value) {
	ExtendedPropertiesAdapter adapter = ExtendedPropertiesAdapter.adapt(object);
	if (adapter!=null && feature!=null) {
	adapter.setProperty(feature, property, value);
	}
	}

	public EStructuralFeature getFeature() {
	return feature;
	}

	public EObject getObject() {
	return object;
	}

	public void setObject(EObject object) {
	this.object = object;
	}

	public void setObject(EObject object, EStructuralFeature feature) {
	this.object = object;
	this.feature = feature;
	}

	protected FormToolkit getToolkit() {
	return parent.getToolkit();
	}

	protected DiagramEditor getDiagramEditor() {
	return parent.getDiagramEditor();
	}

	protected Diagram getDiagram() {
	return getDiagramEditor().getDiagramTypeProvider().getDiagram();
	}

	protected Label createLabel(Composite parent, String name) {
	label = getToolkit().createLabel(parent, name);
	label.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
	updateLabelDecorator();
	return label;
	}

	public Label getLabel() {
	return label;
	}

	private boolean statusApplies(IStatus status) {
	if (status instanceof ConstraintStatus) {
	ConstraintStatus cs = (ConstraintStatus)status;
	for (EObject f : cs.getResultLocus()) {
	if (f instanceof EStructuralFeature && f==this.feature) {
	return true;
	}
	}
	}
	return false;
	}

	protected FeatureEditingDialog createFeatureEditingDialog(EObject value) {
	FeatureEditingDialog dialog = new FeatureEditingDialog(getDiagramEditor(), object, feature, value) {
	public void aboutToOpen() {
	// Pass the container object along to the dialog so that
	// it can be set in its detail composites. This is used
	// if a detail composite needs to display additional information
	// depending on what type of referencing object created the
	// feature editing dialog.
	dialogContent.setData("container", object);
	super.aboutToOpen();
	}
	};
	return dialog;
	}

	/**
	* Returns a descriptive text string for use as a tooltip on the Label for this editor.
	* The default implementation constructs a key from the object and feature name owned by this
	* editor, and looks up the description text in the messages resource of the parent plugin.
	*
	* @return
	*/
	protected String getToolTipText() {
	String text = (String) getExtendedProperty(ExtendedPropertiesAdapter.LONG_DESCRIPTION);
	if (text==null \|\| text.isEmpty())
	text = ToolTipProvider.INSTANCE.getToolTip(parent, object, feature);
	if (text==null \|\| text.isEmpty())
	text = NLS.bind(Messages.ObjectEditor_No_Description, label.getText());

	setExtendedProperty(ExtendedPropertiesAdapter.LONG_DESCRIPTION, text);
	return text;
	}

	/**
	* Updates the error decorators and tooltips of this editor's Label widget.
	*/
	protected void updateLabelDecorator() {

	if (label!=null && !label.isDisposed()) {
	String tooltip = label.getToolTipText();

	if (tooltip==null && object!=null && feature!=null) {
	label.setToolTipText(getToolTipText());
	}


	boolean applies = false;
	String text = null;
	String image = null;

	if (isVisible()) {
	ValidationStatusAdapter statusAdapter = (ValidationStatusAdapter) EcoreUtil.getRegisteredAdapter(
	object, ValidationStatusAdapter.class);
	if (statusAdapter != null) {
	final IStatus status = statusAdapter.getValidationStatus();
	// System.out.println(status.getMessage());
	if (status.isMultiStatus()) {
	for (IStatus s : status.getChildren()) {
	if (statusApplies(s)) {
	applies = true;
	break;
	}
	}
	}
	else if (statusApplies(status))
	applies = true;

	if (applies) {
	text = status.getMessage();
	switch (status.getSeverity()) {
	case IStatus.INFO:
	image = ISharedImages.IMG_OBJS_INFO_TSK;
	break;
	case IStatus.WARNING:
	image = ISharedImages.IMG_DEC_FIELD_WARNING;
	break;
	case IStatus.ERROR:
	image = ISharedImages.IMG_DEC_FIELD_ERROR;
	break;
	default:
	break;
	}
	}
	}
	}

	if (applies) {
	if (decoration==null) {
	decoration = new ControlDecoration(label, SWT.TOP \| SWT.LEFT);
	}
	decoration.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(image));
	decoration.show();
	decoration.setDescriptionText(text);
	}
	else {
	if (decoration!=null) {
	decoration.hide();
	decoration.dispose();
	decoration = null;
	}
	}
	}
	}

	public boolean setValue(final Object result) {
	boolean success = getBusinessObjectDelegate().setValue(object, feature, result);
	if (!success) {
	showErrorMessage(
	NLS.bind(
	Messages.ObjectEditor_Set_Error_Message,
	new Object[] {
	getBusinessObjectDelegate().getTextValue(object),
	getBusinessObjectDelegate().getLabel(object,feature),
	ModelUtil.getTextValue(result)
	}
	)
	);
	return false;
	}
	valueChanged = true;
	return true;
	}

	protected void showErrorMessage(String message) {
	ErrorUtils.showErrorMessage(message);
	}

	public abstract Object getValue();

	@Override
	public void notifyChanged(Notification notification) {
	updateLabelDecorator();
	}

	public void setVisible(boolean visible) {
	label.setVisible(visible);
	GridData data = (GridData)label.getLayoutData();
	data.exclude = !visible;
	updateLabelDecorator();
	}

	public boolean isVisible() {
	return label.isVisible();
	}

	public void dispose() {
	if (label!=null && !label.isDisposed()) {
	label.dispose();
	label = null;
	}
	if (decoration!=null) {
	decoration.hide();
	decoration.dispose();
	decoration = null;
	}
	}

	public Control getControl() {
	return label;
	}

	protected boolean isMultiLineText() {
	return getBusinessObjectDelegate().isMultiLineText(object,feature);
	}

	protected boolean canEdit() {
	return getBusinessObjectDelegate().canEdit(object,feature);
	}

	protected boolean canCreateNew() {
	return getBusinessObjectDelegate().canCreateNew(object,feature);
	}

	protected boolean canEditInline() {
	return getBusinessObjectDelegate().canEditInline(object,feature);
	}

	protected boolean canSetNull() {
	return getBusinessObjectDelegate().canSetNull(object,feature);
	}

	protected boolean canAdd() {
	return false;
	}

	protected boolean canRemove() {
	return false;
	}

	public void setEditable(boolean editable) {
	Control control = getControl();
	if (control instanceof Text) {
	((Text)control).setEditable(editable);
	control.setBackground(control.getDisplay().getSystemColor(SWT.COLOR_INFO_BACKGROUND));
	control.setForeground(control.getDisplay().getSystemColor(SWT.COLOR_INFO_FOREGROUND));
	control.setData(AbstractObjectEditingDialog.DO_NOT_ADAPT, Boolean.TRUE);
	}
	}
	}