CodeListSelectionDialog.java

/*
 * Copyright (c) 2012 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     HUMBOLDT EU Integrated Project #030962
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */
package eu.esdihumboldt.hale.ui.codelist.selector;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
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;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;

import eu.esdihumboldt.hale.common.codelist.CodeList;
import eu.esdihumboldt.hale.ui.codelist.internal.Messages;

/**
 * Dialog showing the properties of a schema item
 * 
 * @author Simon Templer
 * @partner 01 / Fraunhofer Institute for Computer Graphics Research
 */
public class CodeListSelectionDialog extends TitleAreaDialog {

	private static final int NONE_ID = IDialogConstants.CLIENT_ID + 1;

	private CodeList codeList;

	private final List<CodeListSelector> selectors = new ArrayList<CodeListSelector>();

	private TabFolder tabFolder;

	private final String message;

	/**
	 * Constructor
	 * 
	 * @param parentShell the parent shell
	 * @param codeList the current code list
	 * @param message the message
	 */
	public CodeListSelectionDialog(Shell parentShell, CodeList codeList, String message) {
		super(parentShell);

		this.codeList = codeList;
		this.message = message;
	}

	/**
	 * @see TitleAreaDialog#createContents(Composite)
	 */
	@Override
	protected Control createContents(Composite parent) {
		Control control = super.createContents(parent);

		// setMessage("");
		setTitle(Messages.CodeListSelectionDialog_0); //$NON-NLS-1$

		return control;
	}

	/**
	 * @see Window#configureShell(Shell)
	 */
	@Override
	protected void configureShell(Shell newShell) {
		super.configureShell(newShell);

		newShell.setText(Messages.CodeListSelectionDialog_1); //$NON-NLS-1$
	}

	/**
	 * @see TitleAreaDialog#createDialogArea(Composite)
	 */
	@Override
	protected Control createDialogArea(Composite parent) {
		setMessage(message, IMessageProvider.INFORMATION);

		Composite page = new Composite(parent, SWT.NONE);
		GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
		data.widthHint = 600;
		page.setLayoutData(data);

		GridLayout pageLayout = new GridLayout(2, false);
		pageLayout.marginLeft = 0;
		pageLayout.marginTop = 0;
		pageLayout.marginLeft = 0;
		pageLayout.marginBottom = 0;
		page.setLayout(pageLayout);

		tabFolder = new TabFolder(page, SWT.TOP);
		tabFolder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

		// list
		TabItem listItem = new TabItem(tabFolder, SWT.NONE);
		listItem.setText(Messages.CodeListSelectionDialog_2); //$NON-NLS-1$
		ListSelector listSelector = new ListSelector(tabFolder);
		listItem.setControl(listSelector.getControl());
		selectors.add(listSelector);

		// file
		// FIXME Update
//		TabItem fileItem = new TabItem(tabFolder, SWT.NONE);
//		fileItem.setText(Messages.CodeListSelectionDialog_3); //$NON-NLS-1$
//		FileSelector fileSelector = new FileSelector(tabFolder);
//		fileItem.setControl(fileSelector.getControl());
//		selectors.add(fileSelector);
//		if (codeList != null) {
//			fileSelector.setLocation(codeList.getLocation());
//		}

		// initial state
		if (listSelector.selectCodeList(codeList)) {
			tabFolder.setSelection(listItem);
		}
		// FIXME Update
//		else {
//			tabFolder.setSelection(fileItem);
//		}

		return page;
	}

	/**
	 * @see Dialog#createButtonsForButtonBar(Composite)
	 */
	@Override
	protected void createButtonsForButtonBar(Composite parent) {
		createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);

		createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);

		createButton(parent, NONE_ID, Messages.CodeListSelectionDialog_4, //$NON-NLS-1$
				false);
	}

	/**
	 * @see Dialog#okPressed()
	 */
	@Override
	protected void okPressed() {
		CodeListSelector selector = selectors.get(tabFolder.getSelectionIndex());

		CodeList codeList = selector.getCodeList();

		if (codeList != null) {
			this.codeList = codeList;

			super.okPressed();
		}
		else {
			// setErrorMessage("Invalid code list selection");
			MessageDialog.openError(getShell(), Messages.CodeListSelectionDialog_5,
					Messages.CodeListSelectionDialog_6); //$NON-NLS-1$ //$NON-NLS-2$
		}
	}

	/**
	 * @see Dialog#buttonPressed(int)
	 */
	@Override
	protected void buttonPressed(int buttonId) {
		switch (buttonId) {
		case NONE_ID:
			this.codeList = null;
			setReturnCode(OK);
			close();
			break;
		default:
			super.buttonPressed(buttonId);
		}
	}

	/**
	 * @return the codeList
	 */
	public CodeList getCodeList() {
		return codeList;
	}

}