TogafModelWizardInitModelPage.java

/*******************************************************************************
 * Copyright (c) 2011-2012 Obeo.
 * 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:
 *     Obeo - initial API and implementation
 *******************************************************************************/
package org.obeonetwork.dsl.togaf.ui.wizards.newmodel;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.StringTokenizer;

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.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.obeonetwork.dsl.togaf.ui.SessionCreationOperation;

/**
 * The model initialization wizard page.
 * 
 * @author ymortier
 */
// CHECKSTYLE:OFF
public class TogafModelWizardInitModelPage extends WizardPage {

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	protected Combo initialObjectField;

	/**
	 * @generated <!-- begin-user-doc --> <!-- end-user-doc -->
	 */
	protected List<String> encodings;

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	protected Combo encodingField;

	/**
	 * Pass in the selection. <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	public TogafModelWizardInitModelPage(String pageId) {
		super(pageId);
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	public void createControl(Composite parent) {
		Composite composite = new Composite(parent, SWT.NONE);
		{
			GridLayout layout = new GridLayout();
			layout.numColumns = 1;
			layout.verticalSpacing = 12;
			composite.setLayout(layout);

			GridData data = new GridData();
			data.verticalAlignment = GridData.FILL;
			data.grabExcessVerticalSpace = true;
			data.horizontalAlignment = GridData.FILL;
			composite.setLayoutData(data);
		}

		Label containerLabel = new Label(composite, SWT.LEFT);
		{
			containerLabel
					.setText(Messages.TogafModelWizardInitModelPage_ContainerLabel);

			GridData data = new GridData();
			data.horizontalAlignment = GridData.FILL;
			containerLabel.setLayoutData(data);
		}

		initialObjectField = new Combo(composite, SWT.BORDER);
		{
			GridData data = new GridData();
			data.horizontalAlignment = GridData.FILL;
			data.grabExcessHorizontalSpace = true;
			initialObjectField.setLayoutData(data);
		}

		for (String objectName : getInitialObjectNames()) {
			initialObjectField.add(objectName);
		}

		initialObjectField.select(0);
		initialObjectField.addModifyListener(validator);

		Label encodingLabel = new Label(composite, SWT.LEFT);
		{
			encodingLabel
					.setText(Messages.TogafModelWizardInitModelPage_XmlEncodingLabel);

			GridData data = new GridData();
			data.horizontalAlignment = GridData.FILL;
			encodingLabel.setLayoutData(data);
		}
		encodingField = new Combo(composite, SWT.BORDER);
		{
			GridData data = new GridData();
			data.horizontalAlignment = GridData.FILL;
			data.grabExcessHorizontalSpace = true;
			encodingField.setLayoutData(data);
		}

		for (String encoding : getEncodings()) {
			encodingField.add(encoding);
		}

		encodingField.select(0);
		encodingField.addModifyListener(validator);

		setPageComplete(validatePage());
		setControl(composite);
	}

	private List<String> getInitialObjectNames() {
		List<String> names = new ArrayList<String>();
		names.add(SessionCreationOperation.ENTERPRISE_ARCHITECTURE_OBJECT);
		return names;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	protected ModifyListener validator = new ModifyListener() {
		public void modifyText(ModifyEvent e) {
			setPageComplete(validatePage());
		}
	};

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	protected boolean validatePage() {
		return getInitialObjectName() != null
				&& getEncodings().contains(encodingField.getText());
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	@Override
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible) {
			if (initialObjectField.getItemCount() == 1) {
				initialObjectField.clearSelection();
				encodingField.setFocus();
			} else {
				encodingField.clearSelection();
				initialObjectField.setFocus();
			}
		}
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	public String getEncoding() {
		return encodingField.getText();
	}

	public String getInitialObjectName() {
		return initialObjectField.getText();
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	protected Collection<String> getEncodings() {
		if (encodings == null) {
			encodings = new ArrayList<String>();
			for (StringTokenizer stringTokenizer = new StringTokenizer(
					Messages.TogafModelWizardInitModelPage_XmlEncodings); stringTokenizer
					.hasMoreTokens();) {
				encodings.add(stringTokenizer.nextToken());
			}
		}
		return encodings;
	}

}