EDIT

/**

 * 

 */

package eu.etaxonomy.taxeditor.singlesource.ui.forms;

import javax.naming.OperationNotSupportedException;

import org.apache.log4j.Logger;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.KeyAdapter;

import org.eclipse.swt.events.KeyEvent;

import org.eclipse.swt.events.ModifyEvent;

import org.eclipse.swt.events.ModifyListener;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Text;

import org.eclipse.ui.forms.widgets.TableWrapData;

import eu.etaxonomy.cdm.common.CdmUtils;

import eu.etaxonomy.taxeditor.preference.Resources;

import eu.etaxonomy.taxeditor.singlesource.ImplementationLoader;

import eu.etaxonomy.taxeditor.ui.forms.AbstractCdmFormElement;

import eu.etaxonomy.taxeditor.ui.forms.CdmPropertyChangeEvent;

import eu.etaxonomy.taxeditor.ui.forms.ICdmFormElement;

import eu.etaxonomy.taxeditor.ui.forms.IEnableableFormElement;

/**

 * <p>

 * TextWithLabelElement class.

 * </p>

 * 

 * @author n.hoffmann

 * @version $Id: $

 */

public abstract class TextWithLabelElementFacade extends AbstractCdmFormElement implements

		ModifyListener, IEnableableFormElement {

	private static final Logger logger = Logger.getLogger(TextWithLabelElementFacade.class);

	private static TextWithLabelElementFacade IMPL;

	static{

		IMPL = (TextWithLabelElementFacade) ImplementationLoader.newInstance(TextWithLabelElementFacade.class);

	}

	protected Text text;

	private Label label;

	/** Constant <code>MAX_HEIGHT=0</code> */

	public static final int MAX_HEIGHT = 0;

	/** Constant <code>SINGLE=-1</code> */

	public static final int SINGLE = -1;

	protected TextWithLabelElementFacade(){

	}

	/**

	 * <p>

	 * Constructor for TextWithLabelElement.

	 * </p>

	 * 

	 * @param formFactory

	 *            a {@link eu.etaxonomy.taxeditor.singlesource.ui.forms.CdmFormFactoryFacade}

	 *            object.

	 * @param parentElement

	 *            a {@link eu.etaxonomy.taxeditor.ui.forms.ICdmFormElement}

	 *            object.

	 * @param labelString

	 *            a {@link java.lang.String} object.

	 * @param initialText

	 *            a {@link java.lang.String} object.

	 * @param textHeight

	 *            a {@link java.lang.Integer} object.

	 * @param style

	 *            a int.

	 */

	protected TextWithLabelElementFacade(CdmFormFactoryFacade formFactory,

			ICdmFormElement parentElement, String labelString,

			String initialText, Integer textHeight, int style) {

		super(formFactory, parentElement);

		if (labelString != null) {

			label = formFactory.createLabel(getLayoutComposite(),

					CdmUtils.Nz(labelString), SWT.NULL);

			addControl(label);

			label.setLayoutData(CdmFormFactoryFacade.LEFT());

		}

		int scrollStyle = textHeight == null ? SWT.NULL

				: (SWT.V_SCROLL | SWT.MULTI);

		int combinedStyle = style | SWT.BORDER | scrollStyle;

		//SWT.PASSWORD does not work when SWT.WRAP is set. 

		if(style != SWT.PASSWORD){

			combinedStyle = combinedStyle | SWT.WRAP;

		}		

		text = formFactory.createText(getLayoutComposite(), "", combinedStyle);

		addControl(text);

		// text.setWO

		if (textHeight == null) {

			text.addKeyListener(new KeyAdapter() {

				@Override

				public void keyPressed(KeyEvent e) {

					if (e.character == SWT.CR) {

						// Don't accept carriage returns as input when in single

						// line mode

						e.doit = false;

					} else if (e.character == SWT.TAB) {

						// traverse is not working for wrapped text widgets so

						// we reintroduce it here

						e.doit = false;

						try {

							traverse(SWT.TRAVERSE_TAB_NEXT);

						} catch (OperationNotSupportedException e1) {

							logger.warn("Text.traverse(int) not supported ! : " + e1.getMessage());

						}

					}

				}

			});

		}

		TableWrapData layoutData = CdmFormFactoryFacade.FILL();

		if (textHeight != null && textHeight > 0) {

			(layoutData).heightHint = textHeight;

		}

		text.setLayoutData(layoutData);

		text.addModifyListener(this);

		setText(initialText);

	}

	public static TextWithLabelElementFacade getInstance( CdmFormFactoryFacade formFactory,ICdmFormElement parentElement, String labelString,

	String initialText, Integer textHeight, int style)

	{

		return (TextWithLabelElementFacade)IMPL.getInstanceInternal(formFactory,parentElement, labelString, initialText, textHeight, style);

	}

	protected abstract Object getInstanceInternal(CdmFormFactoryFacade formFactory,ICdmFormElement parentElement, String labelString,

			String initialText, Integer textHeight, int style);

	public boolean traverse(int traversal) throws OperationNotSupportedException

	{

		return IMPL.traverseInternal(traversal);

	}

	public abstract boolean traverseInternal(int traversal) throws OperationNotSupportedException;

	/**

	 * Get the text of this composites text composite

	 * 

	 * @return a {@link java.lang.String} object.

	 */

	public String getText() {

		return text.getText();

	}

	/**

	 * Set the text of this composites text composite

	 * 

	 * @param string

	 *            a {@link java.lang.String} object.

	 */

	public void setText(String string) {

		Object[] listeners = removeModifyListenersInternal(text);

		text.setText(CdmUtils.Nz(string));

		addModifyListenersInternal(text, listeners);

	}

	public abstract Object[] removeModifyListenersInternal(Text text);

	public abstract void addModifyListenersInternal(Text text, Object[] listeners);

	/*

	 * (non-Javadoc)

	 * 

	 * @see

	 * org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events

	 * .ModifyEvent)

	 */

	/** {@inheritDoc} */

	public void modifyText(ModifyEvent e) {

		firePropertyChangeEvent(new CdmPropertyChangeEvent(this, e));

	}

	/** {@inheritDoc} */

	public void setSelected(boolean selected) {

		setBackground(getColor(selected));

	}

	/** {@inheritDoc} */

	public void setEnabled(boolean enabled) {

		text.setEnabled(enabled);

		String symbolicName = enabled ? Resources.COLOR_FONT_DEFAULT

				: Resources.COLOR_TEXT_DISABLED;

		text.setForeground(getColor(symbolicName));

	}

	/** {@inheritDoc} */

	public void setIrrelevant(boolean irrelevant) {

		String colorId = irrelevant ? Resources.COLOR_COMPOSITE_IRRELEVANT

				: Resources.COLOR_COMPOSITE_BACKGROUND;

		Color color = getColor(colorId);

		text.setBackground(color);

	}

	/** {@inheritDoc} */

	@Override

	public void setBackground(Color color) {

		if (label != null)

			label.setBackground(color);

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see eu.etaxonomy.taxeditor.forms.AbstractCdmFormElement#setFocus()

	 */

	/** {@inheritDoc} */

	@Override

	public void setFocus() {

		text.setFocus();

	}

	/**

	 * <p>

	 * getMainControl

	 * </p>

	 * 

	 * @return a {@link org.eclipse.swt.widgets.Control} object.

	 */

	public Control getMainControl() {

		return text;

	}

	/**

	 * <p>

	 * setTextLimit

	 * </p>

	 * 

	 * @param limit

	 *            a int.

	 */

	public void setTextLimit(int limit) {

		text.setTextLimit(limit);

	}

}