plugins/org.eclipse.bpel.ui.noEmbeddedEditors/src/org/eclipse/bpel/ui/properties/DurationSelector.java - bpel/org.eclipse.bpel - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005, 2012 IBM Corporation 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:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.bpel.ui.properties;

 import org.eclipse.bpel.common.ui.details.IDetailsAreaConstants;
 import org.eclipse.bpel.common.ui.flatui.FlatFormAttachment;
 import org.eclipse.bpel.common.ui.flatui.FlatFormData;
 import org.eclipse.bpel.common.ui.flatui.FlatFormLayout;
 import org.eclipse.bpel.ui.Messages;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.FocusEvent;
 import org.eclipse.swt.events.FocusListener;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.FillLayout;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.TypedListener;
 import org.eclipse.ui.forms.widgets.FormToolkit;


 /**
  * Collection of widgets for specifying a duration.
  *
  * TODO: rewrite this to be independent of serialization format.  Move that code elsewhere.
  */
 public class DurationSelector extends Composite {

 	/** The id of the text widget (property) */
 	static final String ID    = "id";  //$NON-NLS-1$

 	/** The text of the widget, tracked in focus listener */
 	static final String TEXT  = "text"; //$NON-NLS-1$


 	protected Composite topComposite;
 	protected Composite[] composite;
 	protected Label[] label;
 	protected Text[] text;

 	protected Object lastWidgetChanged;

 	protected static final int YEAR=0, MONTH=1, DAY=2, HOUR=3, MINUTE=4, SECOND=5;
 	protected static final String[] labelStrings = {
 		Messages.DurationSelector_Years_1, Messages.DurationSelector_Months_1, Messages.DurationSelector_Days_2, Messages.DurationSelector_Hours_3, Messages.DurationSelector_Minutes_4, Messages.DurationSelector_Seconds_5
 	};

 //	private Label timeSep, timeSep2;
 //
 //	protected String dateSepText = "/";
 //	protected String timeSepText = ":";

 	private FormToolkit wf;

 	public DurationSelector(FormToolkit toolkit, Composite parent, int style) {
 		super(parent, style);
 		this.wf = toolkit;
 		setLayout(new FillLayout());
 		createControls(this);
 	}

 	private void createControls(Composite parent){
 		FlatFormData data;

 		topComposite = wf.createComposite(parent);
 		GridLayout gridLayout = new GridLayout(3, true);
 		gridLayout.marginWidth = gridLayout.marginHeight = 0;
 		gridLayout.verticalSpacing = IDetailsAreaConstants.VSPACE;
 		gridLayout.horizontalSpacing = IDetailsAreaConstants.HSPACE;
 		topComposite.setLayout(gridLayout);

 		composite = new Composite[6];
 		text = new Text[6];
 		label = new Label[6];

 		for (int i = 0; i<6; i++) {
 			composite[i] = wf.createComposite(topComposite);
 			composite[i].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 			FlatFormLayout formLayout = new FlatFormLayout();
 			formLayout.marginWidth = formLayout.marginHeight = 0;
 			composite[i].setLayout(formLayout);

 			// Accessibility: create each Label right before the corresponding Text.
 			label[i] = wf.createLabel(composite[i], labelStrings[i], SWT.CENTER);
 			text[i] = wf.createText(composite[i], "0"); //$NON-NLS-1$
 			text[i].setData(ID, Integer.valueOf( i ));

 			data = new FlatFormData();
 			data.left = new FlatFormAttachment(0,0);
 			data.right = new FlatFormAttachment(100,0);
 			data.top = new FlatFormAttachment(0,0);
 			label[i].setLayoutData(data);

 			data = new FlatFormData();
 			data.left = new FlatFormAttachment(0,0);
 			data.right = new FlatFormAttachment(100,0);
 			data.top = new FlatFormAttachment(label[i], IDetailsAreaConstants.VSPACE);
 			text[i].setLayoutData(data);
 		}

 //		timeSep  = wf.createLabel(composite, timeSepText, SWT.CENTER);
 //		timeSep2 = wf.createLabel(composite, timeSepText, SWT.CENTER);

 		addListeners();
 		layout(true);
 	}

 	private void addListeners() {
 		// TODO: if we use text widgets, we need to support committers.
 		// when spinners are implemented we might still need to support committers..

 		/**
 		 * We use a focus listener to track modifications in the widgets. Only when one
 		 * of the text widgets is truly modified we fire up a change event to whoever
 		 * is listening on us.
 		 */

 		FocusListener focusListener = new FocusListener() {

 			public void focusGained(FocusEvent e) {
 				Text w = (Text) e.widget;
 				w.setData(TEXT,w.getText().trim());
 			}

 			public void focusLost(FocusEvent e) {

 				Text w = (Text) e.widget;
 				String cv = w.getText();
 				String ct = cv.trim();
 				String ov = (String) w.getData(TEXT);

 				if (isValidValue (ct, (Integer) w.getData(ID) ) == false) {
 					w.setText(ov);
 					return ;
 				}


 				// ignore any spaces around the text
 				if (ct.equals ( cv ) == false ) {
 					w.setText(ct);
 				}

 				// if the trimmed value is different from the original one, then we
 				// do have a change.

 				if (ct.equals(ov) == false) {
 					lastWidgetChanged = w.getData( ID );
 					selectionChanged();
 				}
 			}
 		};

 		for (int i = 0; i<6; i++)  {
 			text[i].addFocusListener(focusListener);
 		}
 	}

 	/**
 	 * Determines if the value entered is valid for this type of field.
 	 *
 	 * @param value the value as string.
 	 * @param type the type
 	 * @return true/false
 	 */

 	boolean isValidValue ( String value, Integer type ) {
 		int n = numberValue(value);

 		if (n < 0) {
 			return false;
 		}

 		switch ( type.intValue()) {
 		case YEAR :
 			return  n < 999;
 		case MONTH :
 			return n < 12;
 		case DAY :
 			return n < 31;
 		case HOUR :
 			return n < 24;
 		case MINUTE :
 		case SECOND :
 			return n < 59 ;
 		default :
 			return false;
 		}

 	}

 	protected int numberValue(String s)  {
 		int result = 0;
 		try {
 			result = Integer.parseInt(s);
 		} catch (NumberFormatException e) {
 			// do nothing
 		}
 		return result;
 	}

 	/**
 	 * Return the values as a 6 element string.
 	 * @return the values present in this "editor"
 	 */

 	public int[] getValues() {
 		int[] result = new int[6];
 		for (int i = 0; i<6; i++) {
 			result[i] = numberValue(text[i].getText());
 		}
 		return result;
 	}


 	/**
 	 *  Sets the values of the duration in the editor.
 	 *
 	 * @param duration
 	 * @return true on success
 	 */
 	public boolean setValues(int[] duration) {

 		for (int i = 0; i<6; i++)  {
 			text[i].setText(String.valueOf(duration[i]));
 		}
 		return true;
 	}

 	void selectionChanged() {
 		Event e = new Event();
 		e.type = SWT.Selection;
 		e.widget = this;
 		e.widget.notifyListeners(e.type, e);
 	}

 	/**
 	 * @param listener
 	 */
 	public void addSelectionListener (SelectionListener listener ) {

 		TypedListener typedListener = new TypedListener (listener);
 		addListener (SWT.Selection,typedListener);
 	}

 	/**
 	 * Return the user context for this editor. This will help restore the editor
 	 * to the previous state when activated again.
 	 *
 	 * @return the user context
 	 */

 	public Object getUserContext() {
 		return lastWidgetChanged;
 	}


 	/**
 	 * Restore the user context, restore editor to the last state.
 	 * @param userContext
 	 */
 	public void restoreUserContext(Object userContext) {

 		int i = ((Integer)userContext).intValue();

 		if (i >= 0) {
 			text[i].setFocus();
 		}
 	}


 	/**
 	 * Enable this editor.
 	 *
 	 * @see org.eclipse.swt.widgets.Control#setEnabled(boolean)
 	 */

 	@Override
 	public void setEnabled(boolean enabled) {

 		super.setEnabled(enabled);
 		for (int i = 0; i < text.length; i++) {
 			text[i].setEnabled(enabled);
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005, 2012 IBM Corporation 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:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.bpel.ui.properties;

	import org.eclipse.bpel.common.ui.details.IDetailsAreaConstants;
	import org.eclipse.bpel.common.ui.flatui.FlatFormAttachment;
	import org.eclipse.bpel.common.ui.flatui.FlatFormData;
	import org.eclipse.bpel.common.ui.flatui.FlatFormLayout;
	import org.eclipse.bpel.ui.Messages;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.FocusEvent;
	import org.eclipse.swt.events.FocusListener;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.FillLayout;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.swt.widgets.TypedListener;
	import org.eclipse.ui.forms.widgets.FormToolkit;



	/**
	* Collection of widgets for specifying a duration.
	*
	* TODO: rewrite this to be independent of serialization format. Move that code elsewhere.
	*/
	public class DurationSelector extends Composite {

	/** The id of the text widget (property) */
	static final String ID = "id"; //$NON-NLS-1$

	/** The text of the widget, tracked in focus listener */
	static final String TEXT = "text"; //$NON-NLS-1$


	protected Composite topComposite;
	protected Composite[] composite;
	protected Label[] label;
	protected Text[] text;

	protected Object lastWidgetChanged;

	protected static final int YEAR=0, MONTH=1, DAY=2, HOUR=3, MINUTE=4, SECOND=5;
	protected static final String[] labelStrings = {
	Messages.DurationSelector_Years_1, Messages.DurationSelector_Months_1, Messages.DurationSelector_Days_2, Messages.DurationSelector_Hours_3, Messages.DurationSelector_Minutes_4, Messages.DurationSelector_Seconds_5
	};

	// private Label timeSep, timeSep2;
	//
	// protected String dateSepText = "/";
	// protected String timeSepText = ":";

	private FormToolkit wf;

	public DurationSelector(FormToolkit toolkit, Composite parent, int style) {
	super(parent, style);
	this.wf = toolkit;
	setLayout(new FillLayout());
	createControls(this);
	}

	private void createControls(Composite parent){
	FlatFormData data;

	topComposite = wf.createComposite(parent);
	GridLayout gridLayout = new GridLayout(3, true);
	gridLayout.marginWidth = gridLayout.marginHeight = 0;
	gridLayout.verticalSpacing = IDetailsAreaConstants.VSPACE;
	gridLayout.horizontalSpacing = IDetailsAreaConstants.HSPACE;
	topComposite.setLayout(gridLayout);

	composite = new Composite[6];
	text = new Text[6];
	label = new Label[6];

	for (int i = 0; i<6; i++) {
	composite[i] = wf.createComposite(topComposite);
	composite[i].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	FlatFormLayout formLayout = new FlatFormLayout();
	formLayout.marginWidth = formLayout.marginHeight = 0;
	composite[i].setLayout(formLayout);

	// Accessibility: create each Label right before the corresponding Text.
	label[i] = wf.createLabel(composite[i], labelStrings[i], SWT.CENTER);
	text[i] = wf.createText(composite[i], "0"); //$NON-NLS-1$
	text[i].setData(ID, Integer.valueOf( i ));

	data = new FlatFormData();
	data.left = new FlatFormAttachment(0,0);
	data.right = new FlatFormAttachment(100,0);
	data.top = new FlatFormAttachment(0,0);
	label[i].setLayoutData(data);

	data = new FlatFormData();
	data.left = new FlatFormAttachment(0,0);
	data.right = new FlatFormAttachment(100,0);
	data.top = new FlatFormAttachment(label[i], IDetailsAreaConstants.VSPACE);
	text[i].setLayoutData(data);
	}

	// timeSep = wf.createLabel(composite, timeSepText, SWT.CENTER);
	// timeSep2 = wf.createLabel(composite, timeSepText, SWT.CENTER);

	addListeners();
	layout(true);
	}

	private void addListeners() {
	// TODO: if we use text widgets, we need to support committers.
	// when spinners are implemented we might still need to support committers..

	/**
	* We use a focus listener to track modifications in the widgets. Only when one
	* of the text widgets is truly modified we fire up a change event to whoever
	* is listening on us.
	*/

	FocusListener focusListener = new FocusListener() {

	public void focusGained(FocusEvent e) {
	Text w = (Text) e.widget;
	w.setData(TEXT,w.getText().trim());
	}

	public void focusLost(FocusEvent e) {

	Text w = (Text) e.widget;
	String cv = w.getText();
	String ct = cv.trim();
	String ov = (String) w.getData(TEXT);

	if (isValidValue (ct, (Integer) w.getData(ID) ) == false) {
	w.setText(ov);
	return ;
	}


	// ignore any spaces around the text
	if (ct.equals ( cv ) == false ) {
	w.setText(ct);
	}

	// if the trimmed value is different from the original one, then we
	// do have a change.

	if (ct.equals(ov) == false) {
	lastWidgetChanged = w.getData( ID );
	selectionChanged();
	}
	}
	};

	for (int i = 0; i<6; i++) {
	text[i].addFocusListener(focusListener);
	}
	}

	/**
	* Determines if the value entered is valid for this type of field.
	*
	* @param value the value as string.
	* @param type the type
	* @return true/false
	*/

	boolean isValidValue ( String value, Integer type ) {
	int n = numberValue(value);

	if (n < 0) {
	return false;
	}

	switch ( type.intValue()) {
	case YEAR :
	return n < 999;
	case MONTH :
	return n < 12;
	case DAY :
	return n < 31;
	case HOUR :
	return n < 24;
	case MINUTE :
	case SECOND :
	return n < 59 ;
	default :
	return false;
	}

	}

	protected int numberValue(String s) {
	int result = 0;
	try {
	result = Integer.parseInt(s);
	} catch (NumberFormatException e) {
	// do nothing
	}
	return result;
	}

	/**
	* Return the values as a 6 element string.
	* @return the values present in this "editor"
	*/

	public int[] getValues() {
	int[] result = new int[6];
	for (int i = 0; i<6; i++) {
	result[i] = numberValue(text[i].getText());
	}
	return result;
	}


	/**
	* Sets the values of the duration in the editor.
	*
	* @param duration
	* @return true on success
	*/
	public boolean setValues(int[] duration) {

	for (int i = 0; i<6; i++) {
	text[i].setText(String.valueOf(duration[i]));
	}
	return true;
	}

	void selectionChanged() {
	Event e = new Event();
	e.type = SWT.Selection;
	e.widget = this;
	e.widget.notifyListeners(e.type, e);
	}

	/**
	* @param listener
	*/
	public void addSelectionListener (SelectionListener listener ) {

	TypedListener typedListener = new TypedListener (listener);
	addListener (SWT.Selection,typedListener);
	}

	/**
	* Return the user context for this editor. This will help restore the editor
	* to the previous state when activated again.
	*
	* @return the user context
	*/

	public Object getUserContext() {
	return lastWidgetChanged;
	}


	/**
	* Restore the user context, restore editor to the last state.
	* @param userContext
	*/
	public void restoreUserContext(Object userContext) {

	int i = ((Integer)userContext).intValue();

	if (i >= 0) {
	text[i].setFocus();
	}
	}


	/**
	* Enable this editor.
	*
	* @see org.eclipse.swt.widgets.Control#setEnabled(boolean)
	*/

	@Override
	public void setEnabled(boolean enabled) {

	super.setEnabled(enabled);
	for (int i = 0; i < text.length; i++) {
	text[i].setEnabled(enabled);
	}
	}
	}