/*

 * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 * Abstract import / export page

 *

 */

package com.nokia.traceviewer.engine.preferences.wizard;

import org.eclipse.jface.viewers.*;

import org.eclipse.jface.wizard.WizardPage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.ModifyEvent;

import org.eclipse.swt.events.ModifyListener;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.*;

/**

 * Abstract superclass of import and export page

 * 

 */

public abstract class AbstractImportExportPage extends WizardPage {

	/**

	 * Path text

	 */

	protected Text pathText;

	/**

	 * Browse button

	 */

	protected Button browseButton;

	/**

	 * Table viewer

	 */

	protected CheckboxTableViewer viewer;

	/**

	 * Constructor

	 * 

	 * @param pageName

	 *            page name

	 */

	public AbstractImportExportPage(String pageName) {

		super(pageName);

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see

	 * org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets

	 * .Composite)

	 */

	public void createControl(Composite parent) {

		initializeDialogUnits(parent);

		Composite composite = new Composite(parent, SWT.NONE);

		composite.setLayout(new GridLayout());

		composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL

				| GridData.HORIZONTAL_ALIGN_FILL));

		composite.setSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

		composite.setFont(parent.getFont());

		setControl(composite);

	}

	/**

	 * Create browse group

	 * 

	 * @param parent

	 *            parent composite

	 * @param labelText

	 *            label text

	 */

	protected void createBrowseGroup(Composite parent, String labelText) {

		Composite composite = new Composite(parent, SWT.NONE);

		GridLayout layout = new GridLayout();

		layout.numColumns = 3;

		composite.setLayout(layout);

		composite.setFont(parent.getFont());

		composite.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL

				| GridData.GRAB_HORIZONTAL));

		// Label

		Label label = new Label(composite, SWT.NONE);

		label.setText(labelText);

		label.setFont(parent.getFont());

		// Path text

		pathText = new Text(composite, SWT.BORDER);

		GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL

				| GridData.GRAB_HORIZONTAL);

		data.widthHint = 250;

		pathText.setLayoutData(data);

		pathText.setFont(parent.getFont());

		pathText.addModifyListener(new ModifyListener() {

			public void modifyText(ModifyEvent e) {

				setPageComplete(validatePage(true));

			}

		});

		// Browse button

		browseButton = new Button(composite, SWT.PUSH);

		browseButton.setText(Messages

				.getString("AbstractImportExportPage.BrowseButtonText")); //$NON-NLS-1$

		browseButton

				.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));

		browseButton.setFont(parent.getFont());

		setButtonLayoutData(browseButton);

	}

	/**

	 * Validates the page

	 * 

	 * @param validateFile

	 *            file path

	 * @return true if page is OK, false otherwise

	 */

	protected abstract boolean validatePage(boolean validateFile);

}