org.kalypso.ui.rrm.internal.simulations.InitialValueAction.java Source code

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Here is the source code for org.kalypso.ui.rrm.internal.simulations.InitialValueAction.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.ui.rrm.internal.simulations;

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

import org.apache.commons.lang3.ObjectUtils;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.ListDialog;
import org.kalypso.gmlschema.property.IPropertyType;
import org.kalypso.model.hydrology.binding.control.NAControl;
import org.kalypso.ogc.gml.command.ChangeFeatureCommand;
import org.kalypso.ui.rrm.internal.i18n.Messages;

/**
 * @author Holger Albert
 */
public class InitialValueAction extends Action {
    private static final String RESET_CONSTANT = Messages.getString("InitialValueAction.0"); //$NON-NLS-1$

    private final InitialValueFeatureControl m_control;

    public InitialValueAction(final InitialValueFeatureControl control) {
        m_control = control;
    }

    @Override
    public void runWithEvent(final Event event) {
        /* Get the shell. */
        final Display display = event.widget.getDisplay();
        final Shell shell = display.getActiveShell();

        /* Longterm simulations may not have start conditions. */
        final NAControl simulation = (NAControl) m_control.getFeature();
        if (SimulationUtilities.isLongterm(simulation)) {
            MessageDialog.open(MessageDialog.INFORMATION, shell, getText(),
                    Messages.getString("InitialValueAction.1"), SWT.NONE); //$NON-NLS-1$
            return;
        }

        /* Get the old initial value. */
        final String oldInitialValue = simulation.getInitialValueSource();

        /* Create the dialog. */
        final ListDialog dialog = new ListDialog(shell);
        dialog.setTitle(getText());
        dialog.setMessage(Messages.getString("InitialValueAction.2")); //$NON-NLS-1$
        dialog.setLabelProvider(new LabelProvider());
        dialog.setContentProvider(new ArrayContentProvider());

        /* Create the input. */
        final List<String> input = new ArrayList<>();
        input.add(RESET_CONSTANT);

        /* Add all longterm simulations. */
        final String[] longtermSimulations = SimulationUtilities.getLongtermSimulations(simulation);
        for (final String longtermSimulation : longtermSimulations)
            input.add(longtermSimulation);

        /* Set the input. */
        dialog.setInput(input);

        /* Set the old initial value as selection. */
        if (oldInitialValue != null && input.contains(oldInitialValue))
            dialog.setInitialSelections(new String[] { oldInitialValue });
        else
            dialog.setInitialSelections(new String[] { RESET_CONSTANT });

        /* Open the dialog. */
        final int open = dialog.open();
        if (open != Window.OK)
            return;

        /* Get the result. */
        final Object[] result = dialog.getResult();
        if (result == null || result.length == 0)
            return;

        /* Get the new initial value. */
        String newInitialValue = (String) result[0];

        /* HINT: It may be a the reset constant. */
        if (RESET_CONSTANT.equals(newInitialValue))
            newInitialValue = ""; //$NON-NLS-1$

        /* Only change, if the old initial value is different from the new initial value. */
        if (!ObjectUtils.equals(oldInitialValue, newInitialValue)) {
            final IPropertyType pt = m_control.getFeatureTypeProperty();
            m_control.fireFeatureChanges(new ChangeFeatureCommand(simulation, pt, newInitialValue));
        }
    }

    @Override
    public String getText() {
        return Messages.getString("InitialValueAction.4"); //$NON-NLS-1$
    }
}