plugins/org.eclipse.bpmn2.modeler.core/src/org/eclipse/bpmn2/modeler/core/merrimac/dialogs/AbstractObjectEditingDialog.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.Activator;
 import org.eclipse.bpmn2.modeler.core.merrimac.clad.IPropertiesCompositeFactory;
 import org.eclipse.bpmn2.modeler.core.validation.LiveValidationListener;
 import org.eclipse.bpmn2.modeler.core.validation.ValidationErrorHandler;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.transaction.RecordingCommand;
 import org.eclipse.emf.transaction.RollbackException;
 import org.eclipse.emf.transaction.Transaction;
 import org.eclipse.emf.transaction.TransactionChangeDescription;
 import org.eclipse.emf.transaction.impl.InternalTransaction;
 import org.eclipse.emf.transaction.impl.InternalTransactionalEditingDomain;
 import org.eclipse.graphiti.ui.editor.DiagramEditor;
 import org.eclipse.jface.dialogs.ErrorDialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.StringConverter;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ControlEvent;
 import org.eclipse.swt.events.ControlListener;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.layout.FormAttachment;
 import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.FormLayout;
 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.swt.widgets.ToolBar;
 import org.eclipse.ui.forms.FormDialog;
 import org.eclipse.ui.forms.IManagedForm;
 import org.eclipse.ui.forms.widgets.ScrolledForm;
 import org.eclipse.ui.forms.widgets.Section;
 import org.eclipse.ui.forms.widgets.Twistie;

 public abstract class AbstractObjectEditingDialog extends FormDialog implements ValidationErrorHandler {

 	protected IPreferenceStore preferenceStore = Activator.getDefault().getPreferenceStore();
 	protected DiagramEditor editor;
 	protected String title = ""; //$NON-NLS-1$
 	protected EObject object;
 	protected boolean cancel = false;
 	protected boolean abortOnCancel = true;
 	protected Transaction transaction;
 	protected ScrolledForm form;
 	protected Composite dialogContent;
 	protected InternalTransactionalEditingDomain domain;
     private Text errorMessageText;
     private IPropertiesCompositeFactory compositeFactory = null;
 	// If this property is set on a Control, then don't try to
 	// adapt the Control's colors/fonts/etc. to dialog defaults
     // This is used by the Description Styled Text widget.
 	public final static String DO_NOT_ADAPT = "do_not_adapt"; //$NON-NLS-1$

 	public AbstractObjectEditingDialog(DiagramEditor editor, EObject object) {
 		super(editor.getEditorSite().getShell());
 		setShellStyle(SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL | SWT.MAX | SWT.RESIZE
 				| getDefaultOrientation());

 		this.editor = editor;
 		this.object = object;
 		domain = (InternalTransactionalEditingDomain) editor.getEditingDomain();
 	}

 	public void setCompositeFactory(IPropertiesCompositeFactory compositeFactory) {
 		this.compositeFactory = compositeFactory;
 	}

 	@Override
 	protected void createFormContent(IManagedForm mform) {
 		super.createFormContent(mform);
 		form = mform.getForm();
 		form.setExpandHorizontal(true);
 		form.setExpandVertical(true);
 		form.setText(null);

 		Composite body = form.getBody();
 		body.setBackground(form.getBackground());

 		FormData data = new FormData();
 		data.top = new FormAttachment(0, 0);
 		data.bottom = new FormAttachment(100, 0);
 		data.left = new FormAttachment(0, 0);
 		data.right = new FormAttachment(100, 0);
 		body.setLayoutData(data);
 		body.setLayout(new FormLayout());

 		dialogContent = createDialogContent(body);
 		if (compositeFactory!=null)
 			dialogContent.setData("factory", compositeFactory); //$NON-NLS-1$

 		data = new FormData();
 		data.top = new FormAttachment(0, 0);
 		data.bottom = new FormAttachment(100, 0);
 		data.left = new FormAttachment(0, 0);
 		data.right = new FormAttachment(100, 0);
 		dialogContent.setLayoutData(data);

 		form.setContent(body);
 		getShell().pack();
 	}

 	@Override
 	protected Control createDialogArea(Composite parent) {
         Composite composite = (Composite) super.createDialogArea(parent);

         errorMessageText = new Text(parent, SWT.READ_ONLY | SWT.WRAP | SWT.BORDER);
         errorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
                 | GridData.HORIZONTAL_ALIGN_FILL));
         errorMessageText.setForeground(errorMessageText.getDisplay()
                 .getSystemColor(SWT.COLOR_RED));
         errorMessageText.setBackground(errorMessageText.getDisplay()
                 .getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
         return composite;
 	}

 	abstract protected Composite createDialogContent(Composite parent);
 	abstract protected String getPreferenceKey();

 	protected String getTitle() {
 		return title;
 	}

 	protected void addControlListener() {

 		final String key = getPreferenceKey();
 		Point p = getShell().getSize();
 		int width = preferenceStore.getInt("dialog."+key+".width"); //$NON-NLS-1$ //$NON-NLS-2$
 		if (width==0)
 			width = p.x;
 		int height = preferenceStore.getInt("dialog."+key+".height"); //$NON-NLS-1$ //$NON-NLS-2$
 		if (height==0)
 			height = p.y;
 		getShell().setSize(width,height);

 		p = getShell().getLocation();
 		int x = preferenceStore.getInt("dialog."+key+".x"); //$NON-NLS-1$ //$NON-NLS-2$
 		if (x==0)
 			x = p.x;
 		int y = preferenceStore.getInt("dialog."+key+".y"); //$NON-NLS-1$ //$NON-NLS-2$
 		if (y==0)
 			y = p.y;
 		getShell().setLocation(x,y);

 		getShell().addControlListener(new ControlListener() {
 			public void controlMoved(ControlEvent e)
 			{
 				Point p = getShell().getLocation();
 				preferenceStore.setValue("dialog."+key+".x", p.x); //$NON-NLS-1$ //$NON-NLS-2$
 				preferenceStore.setValue("dialog."+key+".y", p.y); //$NON-NLS-1$ //$NON-NLS-2$
 			}

 			public void controlResized(ControlEvent e)
 			{
 				Point p = getShell().getSize();
 				preferenceStore.setValue("dialog."+key+".width", p.x); //$NON-NLS-1$ //$NON-NLS-2$
 				preferenceStore.setValue("dialog."+key+".height", p.y); //$NON-NLS-1$ //$NON-NLS-2$
 			}

 		});

         hookTransaction();
 	}

 	protected void aboutToOpen() {
 		dialogContent.setData(object);
 	}

 	@Override
 	public void create() {
 		super.create();
 		startTransaction();
 	}

 	public static int openWithTransaction(final AbstractObjectEditingDialog dialog) {
 		final int result[] = new int[1];
 		// wrap this dialog in a transaction
 		if (dialog.domain.getActiveTransaction()==null) {
 			dialog.domain.getCommandStack().execute(new RecordingCommand(dialog.domain) {
 				@Override
 				protected void doExecute() {
 					result[0] = openWithRollback(dialog);
 				}
 			});
 		}
 		else {
 			result[0] = openWithRollback(dialog);
 		}
 		return result[0];
 	}

 	private static int openWithRollback(final AbstractObjectEditingDialog dialog) {
 		int result = dialog.open();
 		InternalTransaction transaction = dialog.domain.getActiveTransaction();
 		if (transaction!=null) {
 			if (dialog.cancel) {
 				// roll back transaction if CANCEL button was pressed
 				IStatus status = new Status(Status.CANCEL, Activator.PLUGIN_ID, "cancel");
 				transaction.setStatus(status);
 				result = Window.CANCEL;
 			}
 			else {
 				TransactionChangeDescription cd = dialog.transaction.getChangeDescription();
 				if (cd.getObjectChanges().size()==0) {
 					// also roll back if there were no changes made even if
 					// OK button was pressed.
 					IStatus status = new Status(Status.CANCEL, Activator.PLUGIN_ID, "no changes");
 					transaction.setStatus(status);
 					result = Window.CANCEL;
 				}
 			}
 		}
 		return result;
 	}

 	public int open() {
 		if (getShell()==null)
 			create();

 		getShell().setText(getTitle());
 		getShell().setSize(600,400);

 		addControlListener();

 		// Tell the Live Validation Listener to report validation errors to us
 		// instead of the Workbench Status line.
 		LiveValidationListener.setValidationErrorHandler(this);
 		getShell().addDisposeListener(new DisposeListener() {
 			public void widgetDisposed(DisposeEvent event) {
 				LiveValidationListener.setValidationErrorHandler(null);
 			}
 		});

 		aboutToOpen();

 		adapt(dialogContent);

 		return super.open();
 	}

 	protected void adapt(Composite content) {

 		// The AbstractDetailComposite controls don't actually get constructed until
 		// setBusinessObject() is called - the business object determines which controls
 		// are required. So, this needs to happen very late in the dialog lifecycle.
 		// We can now safely set the background color of all controls to match
 		// the dialog.
 		content.setBackground(form.getBackground());
 		for (Control k : content.getChildren()) {
 			Object data = k.getData(AbstractObjectEditingDialog.DO_NOT_ADAPT);
 			if (data instanceof Boolean && (Boolean)data == true)
 				continue;
 			if (k instanceof Twistie || k instanceof ToolBar
 					|| (k instanceof Label && k.getParent() instanceof Section)) {
 				continue;
 			}
 			k.setBackground(form.getBackground());
 			if (k instanceof Composite) {
 				adapt((Composite)k);
 			}
 		}
 	}

 	@Override
 	public boolean close() {
 		if (getReturnCode() != OK)
 			cancel = true;
 		return super.close();
 	}

 	/**
 	 * Return state of the "abortOnCancel transaction on cancel" flag
 	 *
 	 * @return true if the current transaction will be aborted if the dialog is canceled.
 	 */
 	public boolean isAbortOnCancel() {
 		return abortOnCancel;
 	}

 	/**
 	 * Abort the currently active transaction if dialog is canceled either by clicking the "Cancel"
 	 * button, pressing the ESCAPE key or closing the dialog with the Window Close button.
 	 *
 	 * @param abortOnCancel - if true, abortOnCancel the current transaction if dialog is canceled,
 	 * otherwise allow transaction to commit.
 	 */
 	public void setAbortOnCancel(boolean abort) {
 		this.abortOnCancel = abort;
 	}

 	@Override
 	protected void cancelPressed() {
 		cancel = true;
 		dialogContent.dispose();
 		super.cancelPressed();
 	}

 	@Override
 	protected void okPressed() {
 		cancel = false;
 		dialogContent.dispose();
 		super.okPressed();
 	}

 	public boolean hasDoneChanges() {
 		return transaction==null || !transaction.getChangeDescription().isEmpty();
 	}

 	protected void startTransaction() {
 		if (transaction==null) {
 			try {
 				transaction = domain.startTransaction(false, null);
 			}
 			catch (InterruptedException e) {
 				e.printStackTrace();
 			}
 		}
 	}

 	private void hookTransaction() {
 		getShell().addDisposeListener(new DisposeListener() {
 			public void widgetDisposed(DisposeEvent event) {
 				if (transaction!=null && transaction.isActive()) {
 					if (cancel) {
 						transaction.rollback();
 					}
 					else {
 						try {
 							transaction.commit();
 						}
 						catch (RollbackException e) {
 							ErrorDialog.openError(getShell(), Messages.AbstractObjectEditingDialog_Commit_Error,
 									Messages.AbstractObjectEditingDialog_Commit_Error_Title, new Status(IStatus.ERROR,
 											Activator.PLUGIN_ID, e.getMessage(), e));
 						}
 					}
 				}
 			}
 		});
 	}

 	protected void rollbackTransaction() {
 		if (transaction!=null) {
 			transaction.rollback();
 			transaction = null;
 		}
 	}

 	public void reportError(IStatus s)
 	{
 		String errorMessage = (s==null) ? null : s.getMessage();
     	if (errorMessageText != null && !errorMessageText.isDisposed()) {
     		errorMessageText.setText(errorMessage == null ? "" : errorMessage); //$NON-NLS-1$
     		// Disable the error message text control if there is no error, or
     		// no error text (empty or whitespace only).  Hide it also to avoid
     		// color change.
     		boolean hasError = errorMessage != null && (StringConverter.removeWhiteSpaces(errorMessage)).length() > 0;
     		errorMessageText.setEnabled(hasError);
     		errorMessageText.setVisible(hasError);
     		GridData gd = (GridData) errorMessageText.getLayoutData();
     		gd.exclude = !hasError;
     		if (dialogArea!=null)
     			dialogArea.getParent().layout();

     		if (s!=null && s.getSeverity()>=IStatus.ERROR) {
 	    		Control button = getButton(IDialogConstants.OK_ID);
 	    		if (button != null) {
 	    			button.setEnabled(hasError);
 	    		}
     		}
     	}
     }
 }
	/*******************************************************************************
	* 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.Activator;
	import org.eclipse.bpmn2.modeler.core.merrimac.clad.IPropertiesCompositeFactory;
	import org.eclipse.bpmn2.modeler.core.validation.LiveValidationListener;
	import org.eclipse.bpmn2.modeler.core.validation.ValidationErrorHandler;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.transaction.RecordingCommand;
	import org.eclipse.emf.transaction.RollbackException;
	import org.eclipse.emf.transaction.Transaction;
	import org.eclipse.emf.transaction.TransactionChangeDescription;
	import org.eclipse.emf.transaction.impl.InternalTransaction;
	import org.eclipse.emf.transaction.impl.InternalTransactionalEditingDomain;
	import org.eclipse.graphiti.ui.editor.DiagramEditor;
	import org.eclipse.jface.dialogs.ErrorDialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.StringConverter;
	import org.eclipse.jface.window.Window;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ControlEvent;
	import org.eclipse.swt.events.ControlListener;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.layout.FormAttachment;
	import org.eclipse.swt.layout.FormData;
	import org.eclipse.swt.layout.FormLayout;
	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.swt.widgets.ToolBar;
	import org.eclipse.ui.forms.FormDialog;
	import org.eclipse.ui.forms.IManagedForm;
	import org.eclipse.ui.forms.widgets.ScrolledForm;
	import org.eclipse.ui.forms.widgets.Section;
	import org.eclipse.ui.forms.widgets.Twistie;

	public abstract class AbstractObjectEditingDialog extends FormDialog implements ValidationErrorHandler {

	protected IPreferenceStore preferenceStore = Activator.getDefault().getPreferenceStore();
	protected DiagramEditor editor;
	protected String title = ""; //$NON-NLS-1$
	protected EObject object;
	protected boolean cancel = false;
	protected boolean abortOnCancel = true;
	protected Transaction transaction;
	protected ScrolledForm form;
	protected Composite dialogContent;
	protected InternalTransactionalEditingDomain domain;
	private Text errorMessageText;
	private IPropertiesCompositeFactory compositeFactory = null;
	// If this property is set on a Control, then don't try to
	// adapt the Control's colors/fonts/etc. to dialog defaults
	// This is used by the Description Styled Text widget.
	public final static String DO_NOT_ADAPT = "do_not_adapt"; //$NON-NLS-1$

	public AbstractObjectEditingDialog(DiagramEditor editor, EObject object) {
	super(editor.getEditorSite().getShell());
	setShellStyle(SWT.DIALOG_TRIM \| SWT.APPLICATION_MODAL \| SWT.MAX \| SWT.RESIZE
	\| getDefaultOrientation());

	this.editor = editor;
	this.object = object;
	domain = (InternalTransactionalEditingDomain) editor.getEditingDomain();
	}

	public void setCompositeFactory(IPropertiesCompositeFactory compositeFactory) {
	this.compositeFactory = compositeFactory;
	}

	@Override
	protected void createFormContent(IManagedForm mform) {
	super.createFormContent(mform);
	form = mform.getForm();
	form.setExpandHorizontal(true);
	form.setExpandVertical(true);
	form.setText(null);

	Composite body = form.getBody();
	body.setBackground(form.getBackground());

	FormData data = new FormData();
	data.top = new FormAttachment(0, 0);
	data.bottom = new FormAttachment(100, 0);
	data.left = new FormAttachment(0, 0);
	data.right = new FormAttachment(100, 0);
	body.setLayoutData(data);
	body.setLayout(new FormLayout());

	dialogContent = createDialogContent(body);
	if (compositeFactory!=null)
	dialogContent.setData("factory", compositeFactory); //$NON-NLS-1$

	data = new FormData();
	data.top = new FormAttachment(0, 0);
	data.bottom = new FormAttachment(100, 0);
	data.left = new FormAttachment(0, 0);
	data.right = new FormAttachment(100, 0);
	dialogContent.setLayoutData(data);

	form.setContent(body);
	getShell().pack();
	}

	@Override
	protected Control createDialogArea(Composite parent) {
	Composite composite = (Composite) super.createDialogArea(parent);

	errorMessageText = new Text(parent, SWT.READ_ONLY \| SWT.WRAP \| SWT.BORDER);
	errorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
	\| GridData.HORIZONTAL_ALIGN_FILL));
	errorMessageText.setForeground(errorMessageText.getDisplay()
	.getSystemColor(SWT.COLOR_RED));
	errorMessageText.setBackground(errorMessageText.getDisplay()
	.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
	return composite;
	}

	abstract protected Composite createDialogContent(Composite parent);
	abstract protected String getPreferenceKey();

	protected String getTitle() {
	return title;
	}

	protected void addControlListener() {

	final String key = getPreferenceKey();
	Point p = getShell().getSize();
	int width = preferenceStore.getInt("dialog."+key+".width"); //$NON-NLS-1$ //$NON-NLS-2$
	if (width==0)
	width = p.x;
	int height = preferenceStore.getInt("dialog."+key+".height"); //$NON-NLS-1$ //$NON-NLS-2$
	if (height==0)
	height = p.y;
	getShell().setSize(width,height);

	p = getShell().getLocation();
	int x = preferenceStore.getInt("dialog."+key+".x"); //$NON-NLS-1$ //$NON-NLS-2$
	if (x==0)
	x = p.x;
	int y = preferenceStore.getInt("dialog."+key+".y"); //$NON-NLS-1$ //$NON-NLS-2$
	if (y==0)
	y = p.y;
	getShell().setLocation(x,y);

	getShell().addControlListener(new ControlListener() {
	public void controlMoved(ControlEvent e)
	{
	Point p = getShell().getLocation();
	preferenceStore.setValue("dialog."+key+".x", p.x); //$NON-NLS-1$ //$NON-NLS-2$
	preferenceStore.setValue("dialog."+key+".y", p.y); //$NON-NLS-1$ //$NON-NLS-2$
	}

	public void controlResized(ControlEvent e)
	{
	Point p = getShell().getSize();
	preferenceStore.setValue("dialog."+key+".width", p.x); //$NON-NLS-1$ //$NON-NLS-2$
	preferenceStore.setValue("dialog."+key+".height", p.y); //$NON-NLS-1$ //$NON-NLS-2$
	}

	});

	hookTransaction();
	}

	protected void aboutToOpen() {
	dialogContent.setData(object);
	}

	@Override
	public void create() {
	super.create();
	startTransaction();
	}

	public static int openWithTransaction(final AbstractObjectEditingDialog dialog) {
	final int result[] = new int[1];
	// wrap this dialog in a transaction
	if (dialog.domain.getActiveTransaction()==null) {
	dialog.domain.getCommandStack().execute(new RecordingCommand(dialog.domain) {
	@Override
	protected void doExecute() {
	result[0] = openWithRollback(dialog);
	}
	});
	}
	else {
	result[0] = openWithRollback(dialog);
	}
	return result[0];
	}

	private static int openWithRollback(final AbstractObjectEditingDialog dialog) {
	int result = dialog.open();
	InternalTransaction transaction = dialog.domain.getActiveTransaction();
	if (transaction!=null) {
	if (dialog.cancel) {
	// roll back transaction if CANCEL button was pressed
	IStatus status = new Status(Status.CANCEL, Activator.PLUGIN_ID, "cancel");
	transaction.setStatus(status);
	result = Window.CANCEL;
	}
	else {
	TransactionChangeDescription cd = dialog.transaction.getChangeDescription();
	if (cd.getObjectChanges().size()==0) {
	// also roll back if there were no changes made even if
	// OK button was pressed.
	IStatus status = new Status(Status.CANCEL, Activator.PLUGIN_ID, "no changes");
	transaction.setStatus(status);
	result = Window.CANCEL;
	}
	}
	}
	return result;
	}

	public int open() {
	if (getShell()==null)
	create();

	getShell().setText(getTitle());
	getShell().setSize(600,400);

	addControlListener();

	// Tell the Live Validation Listener to report validation errors to us
	// instead of the Workbench Status line.
	LiveValidationListener.setValidationErrorHandler(this);
	getShell().addDisposeListener(new DisposeListener() {
	public void widgetDisposed(DisposeEvent event) {
	LiveValidationListener.setValidationErrorHandler(null);
	}
	});

	aboutToOpen();

	adapt(dialogContent);

	return super.open();
	}

	protected void adapt(Composite content) {

	// The AbstractDetailComposite controls don't actually get constructed until
	// setBusinessObject() is called - the business object determines which controls
	// are required. So, this needs to happen very late in the dialog lifecycle.
	// We can now safely set the background color of all controls to match
	// the dialog.
	content.setBackground(form.getBackground());
	for (Control k : content.getChildren()) {
	Object data = k.getData(AbstractObjectEditingDialog.DO_NOT_ADAPT);
	if (data instanceof Boolean && (Boolean)data == true)
	continue;
	if (k instanceof Twistie \|\| k instanceof ToolBar
	\|\| (k instanceof Label && k.getParent() instanceof Section)) {
	continue;
	}
	k.setBackground(form.getBackground());
	if (k instanceof Composite) {
	adapt((Composite)k);
	}
	}
	}

	@Override
	public boolean close() {
	if (getReturnCode() != OK)
	cancel = true;
	return super.close();
	}

	/**
	* Return state of the "abortOnCancel transaction on cancel" flag
	*
	* @return true if the current transaction will be aborted if the dialog is canceled.
	*/
	public boolean isAbortOnCancel() {
	return abortOnCancel;
	}

	/**
	* Abort the currently active transaction if dialog is canceled either by clicking the "Cancel"
	* button, pressing the ESCAPE key or closing the dialog with the Window Close button.
	*
	* @param abortOnCancel - if true, abortOnCancel the current transaction if dialog is canceled,
	* otherwise allow transaction to commit.
	*/
	public void setAbortOnCancel(boolean abort) {
	this.abortOnCancel = abort;
	}

	@Override
	protected void cancelPressed() {
	cancel = true;
	dialogContent.dispose();
	super.cancelPressed();
	}

	@Override
	protected void okPressed() {
	cancel = false;
	dialogContent.dispose();
	super.okPressed();
	}

	public boolean hasDoneChanges() {
	return transaction==null \|\| !transaction.getChangeDescription().isEmpty();
	}

	protected void startTransaction() {
	if (transaction==null) {
	try {
	transaction = domain.startTransaction(false, null);
	}
	catch (InterruptedException e) {
	e.printStackTrace();
	}
	}
	}

	private void hookTransaction() {
	getShell().addDisposeListener(new DisposeListener() {
	public void widgetDisposed(DisposeEvent event) {
	if (transaction!=null && transaction.isActive()) {
	if (cancel) {
	transaction.rollback();
	}
	else {
	try {
	transaction.commit();
	}
	catch (RollbackException e) {
	ErrorDialog.openError(getShell(), Messages.AbstractObjectEditingDialog_Commit_Error,
	Messages.AbstractObjectEditingDialog_Commit_Error_Title, new Status(IStatus.ERROR,
	Activator.PLUGIN_ID, e.getMessage(), e));
	}
	}
	}
	}
	});
	}

	protected void rollbackTransaction() {
	if (transaction!=null) {
	transaction.rollback();
	transaction = null;
	}
	}

	public void reportError(IStatus s)
	{
	String errorMessage = (s==null) ? null : s.getMessage();
	if (errorMessageText != null && !errorMessageText.isDisposed()) {
	errorMessageText.setText(errorMessage == null ? "" : errorMessage); //$NON-NLS-1$
	// Disable the error message text control if there is no error, or
	// no error text (empty or whitespace only). Hide it also to avoid
	// color change.
	boolean hasError = errorMessage != null && (StringConverter.removeWhiteSpaces(errorMessage)).length() > 0;
	errorMessageText.setEnabled(hasError);
	errorMessageText.setVisible(hasError);
	GridData gd = (GridData) errorMessageText.getLayoutData();
	gd.exclude = !hasError;
	if (dialogArea!=null)
	dialogArea.getParent().layout();

	if (s!=null && s.getSeverity()>=IStatus.ERROR) {
	Control button = getButton(IDialogConstants.OK_ID);
	if (button != null) {
	button.setEnabled(hasError);
	}
	}
	}
	}
	}