org.kalypso.model.wspm.ui.profil.wizard.pointsInsert.PointsSourceChooserPage.java Source code

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Here is the source code for org.kalypso.model.wspm.ui.profil.wizard.pointsInsert.PointsSourceChooserPage.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 * 
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 * 
 *  and
 *  
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 * 
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 * 
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 *  Contact:
 * 
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *   
 *  ---------------------------------------------------------------------------*/
package org.kalypso.model.wspm.ui.profil.wizard.pointsInsert;

import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StackLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.kalypso.model.wspm.ui.KalypsoModelWspmUIExtensions;

/**
 * @author Belger
 */
public class PointsSourceChooserPage extends WizardPage {
    private static final String DLG_SETTINGS_SOURCE_ID = PointsSourceChooserPage.class.getName()
            + ".dialogSettings.selectedSourceID"; //$NON-NLS-1$

    private final IPointsSource[] m_sources = KalypsoModelWspmUIExtensions.createProfilPointSources();

    private IPointsSource m_selectedSource;

    private Group m_sourceStack;

    private StackLayout m_stackLayout;

    public PointsSourceChooserPage() {
        super("pointsSourceChooser", org.kalypso.model.wspm.ui.i18n.Messages //$NON-NLS-1$
                .getString("org.kalypso.model.wspm.ui.profil.wizard.pointsInsert.PointsSourceChooserPage.0"), null); //$NON-NLS-1$
    }

    /**
     * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createControl(final Composite parent) {
        final String sourceID = getDialogSettings().get(DLG_SETTINGS_SOURCE_ID);

        if (sourceID == null) {
            m_selectedSource = m_sources.length == 0 ? null : m_sources[0];
        } else {
            for (final IPointsSource source : m_sources) {
                if (sourceID.equals(source.getID())) {
                    m_selectedSource = source;
                    break;
                }
            }
        }

        final Composite panel = new Composite(parent, SWT.NONE);
        panel.setLayout(new GridLayout(2, false));

        new Label(panel, SWT.NONE).setText(org.kalypso.model.wspm.ui.i18n.Messages
                .getString("org.kalypso.model.wspm.ui.profil.wizard.pointsInsert.PointsSourceChooserPage.1")); //$NON-NLS-1$

        final ComboViewer comboViewer = new ComboViewer(panel, SWT.DROP_DOWN | SWT.READ_ONLY);
        comboViewer.setContentProvider(new ArrayContentProvider());
        comboViewer.setLabelProvider(new LabelProvider());
        comboViewer.setInput(m_sources);
        comboViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(final SelectionChangedEvent event) {
                final IStructuredSelection selection = (IStructuredSelection) event.getSelection();
                setSelectedSource((IPointsSource) selection.getFirstElement());
            }
        });

        final Label sep = new Label(panel, SWT.SEPARATOR | SWT.HORIZONTAL);
        sep.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));

        m_sourceStack = new Group(panel, SWT.NONE);
        m_stackLayout = new StackLayout();
        m_sourceStack.setLayout(m_stackLayout);
        m_sourceStack.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true, 2, 1));

        for (final IPointsSource source : m_sources) {
            source.createControl(m_sourceStack);
        }

        if (m_sources.length > 0) {
            comboViewer.setSelection(new StructuredSelection(m_selectedSource));
        }

        setControl(panel);
    }

    protected void setSelectedSource(final IPointsSource source) {
        m_selectedSource = source;

        m_sourceStack.setText(m_selectedSource == null ? "" : m_selectedSource.getDescription()); //$NON-NLS-1$
        m_stackLayout.topControl = m_selectedSource == null ? null
                : m_selectedSource.getControl(getDialogSettings());
        m_sourceStack.layout();
    }

    public IPointsSource getChoosenSource() {
        return m_selectedSource;
    }

    @Override
    public void dispose() {

        if (m_selectedSource != null) {
            getDialogSettings().put(DLG_SETTINGS_SOURCE_ID, m_selectedSource.getID());
            m_selectedSource.saveState(getDialogSettings());
        }
        super.dispose();
    }
}