org.kalypso.ui.wizards.imports.wspmrestart.ImportWspmRestartPage.java Source code

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Here is the source code for org.kalypso.ui.wizards.imports.wspmrestart.ImportWspmRestartPage.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.wizards.imports.wspmrestart;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.model.WorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.kalypso.kalypso1d2d.internal.i18n.Messages;
import org.kalypso.kalypso1d2d.pjt.Kalypso1d2dProjectPlugin;
import org.kalypso.simulation.ui.calccase.ModelNature;

/**
 * @author Gernot Belger
 */
public class ImportWspmRestartPage extends WizardPage {
    protected static final IPath PATH_LS_FILE = Path.fromPortableString("_aktuell/Daten/Lngsschnitt.gml"); //$NON-NLS-1$

    private IFile m_lengthSection;

    public ImportWspmRestartPage(final String pageName) {
        super(pageName);

        setTitle(Messages.getString("org.kalypso.ui.wizards.imports.wspmrestart.ImportWspmRestartPage.1")); //$NON-NLS-1$
        setDescription(Messages.getString("org.kalypso.ui.wizards.imports.wspmrestart.ImportWspmRestartPage.2")); //$NON-NLS-1$
    }

    @Override
    public void createControl(final Composite parent) {
        /* Filters every none-WSPM project */
        final ViewerFilter wspmProjectFilter = new ViewerFilter() {

            @Override
            public boolean select(final Viewer viewer, final Object parentElement, final Object element) {
                try {
                    if (element instanceof IProject) {
                        final IProject project = (IProject) element;
                        if (!project.isOpen())
                            return false;

                        if (project.getNature(ModelNature.ID) == null)
                            return false;

                        final IFolder folder = project.getFolder("Ergebnisse"); //$NON-NLS-1$
                        return folder.exists();
                    }

                    if (element instanceof IFolder) {
                        final IFolder folder = (IFolder) element;
                        if (folder.getName().equals("Ergebnisse") && parentElement instanceof IProject) //$NON-NLS-1$
                            return true;

                        if (parentElement instanceof IFolder
                                && ((IFolder) parentElement).getName().equals("Ergebnisse")) //$NON-NLS-1$
                        {
                            final IFile file = folder.getFile(PATH_LS_FILE);
                            return file.exists();
                        }

                        return false;
                    }
                } catch (final CoreException e) {
                    Kalypso1d2dProjectPlugin.getDefault().getLog().log(e.getStatus());
                }

                return false;
            }
        };

        final TreeViewer treeViewer = new TreeViewer(parent);

        treeViewer.setContentProvider(new WorkbenchContentProvider());
        treeViewer.setLabelProvider(new WorkbenchLabelProvider());
        treeViewer.setFilters(new ViewerFilter[] { wspmProjectFilter });
        treeViewer.setInput(ResourcesPlugin.getWorkspace().getRoot());

        treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(final SelectionChangedEvent event) {
                handleSelectionChanged((IStructuredSelection) event.getSelection());
            }
        });

        setControl(treeViewer.getControl());
    }

    protected void handleSelectionChanged(final IStructuredSelection selection) {
        final Object firstElement = selection.getFirstElement();
        if (firstElement instanceof IFolder) {
            final IFolder folder = (IFolder) firstElement;
            final IFile file = folder.getFile(PATH_LS_FILE);
            if (file.exists())
                m_lengthSection = file;
            else
                m_lengthSection = null;
        } else
            m_lengthSection = null;

        setPageComplete(m_lengthSection != null);
    }

    public IFile getLengthSection() {
        return m_lengthSection;
    }

}