/*******************************************************************************
 * Copyright (c) 2007 Symbian Software Limited 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:
 * Bala Torati (Symbian) - Initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.ui.templateengine;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.forms.widgets.FormText;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledFormText;

/**
 * FormBrowser. 
 */
class FormBrowser {
	private FormToolkit toolkit;
	private Composite container;
	private ScrolledFormText formText;
	private String text;

	public void createControl(Composite parent) {
		toolkit = new FormToolkit(parent.getDisplay());
		int borderStyle = toolkit.getBorderStyle() == SWT.BORDER ? SWT.NULL : SWT.BORDER;
		container = new Composite(parent, borderStyle);
		FillLayout flayout = new FillLayout();
		flayout.marginWidth = 1;
		flayout.marginHeight = 1;
		container.setLayout(flayout);
		formText = new ScrolledFormText(container, SWT.V_SCROLL | SWT.H_SCROLL, false);
		if (borderStyle == SWT.NULL) {
			formText.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TREE_BORDER);
			toolkit.paintBordersFor(container);
		}
		FormText ftext = toolkit.createFormText(formText, false);
		formText.setFormText(ftext);
		formText.setExpandHorizontal(true);
		formText.setExpandVertical(true);
		formText.setBackground(toolkit.getColors().getBackground());
		formText.setForeground(toolkit.getColors().getForeground());
		ftext.marginWidth = 2;
		ftext.marginHeight = 2;
		ftext.setHyperlinkSettings(toolkit.getHyperlinkGroup());
		formText.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent e) {
				if (toolkit != null) {
					toolkit.dispose();
					toolkit = null;
				}
			}
		});
		if (text != null) {
			formText.setText(text);
		}
	}

	public Control getControl() {
		return container;
	}

	/**
	 * @param text  the text to set
	 */
	public void setText(String text) {
		this.text = text;
		if (formText != null) {
			formText.setText(text);
		}
	}
}