/*******************************************************************************
 * Copyright (c) 2008-2011 Chair for Applied Software Engineering,
 * Technische Universitaet Muenchen.
 * 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:
 ******************************************************************************/
package org.eclipse.emf.emfstore.client.ui.dialogs;

import java.util.List;

import org.eclipse.emf.emfstore.client.model.ProjectSpace;
import org.eclipse.emf.emfstore.client.ui.views.changes.TabbedChangesComposite;
import org.eclipse.emf.emfstore.server.model.versioning.ChangePackage;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

/**
 * This is the update dialog. It shows just a ChangesTreeComposite.
 * 
 * @author Hodaie
 */

public class UpdateDialog extends TitleAreaDialog {

	private List<ChangePackage> changes;
	private ProjectSpace projectSpace;

	/**
	 * Constructor.
	 * 
	 * @param parentShell the parent shell
	 * @param projectSpace the project space that should be updated
	 * @param changes the list of changes
	 */
	public UpdateDialog(Shell parentShell, ProjectSpace projectSpace, List<ChangePackage> changes) {
		super(parentShell);
		this.setShellStyle(this.getShellStyle() | SWT.RESIZE);
		this.changes = changes;
		this.projectSpace = projectSpace;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected Control createDialogArea(Composite parent) {
		Composite contents = new Composite(parent, SWT.NONE);
		contents.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
		contents.setLayout(new GridLayout(2, false));

		// changes tree
		if (changes != null) {
			TabbedChangesComposite changesComposite = new TabbedChangesComposite(contents, SWT.BORDER, changes,
				projectSpace.getProject());
			changesComposite.setReverseNodes(false);
			changesComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
		}

		// show number of changes on dialog title
		setTitle("Changes from server");
		return contents;

	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);
		newShell.setText("Update");

		Rectangle area = newShell.getShell().getParent().getClientArea();
		int width = area.width * 2 / 3;
		int height = area.height * 2 / 3;
		newShell.setBounds((area.width - width) / 2, (area.height - height) / 2, width, height);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void okPressed() {
		// TODO final implementation
		super.okPressed();
	}

}