org.kalypso.ui.editor.styleeditor.placement.LinePlacementComposite.java Source code

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Here is the source code for org.kalypso.ui.editor.styleeditor.placement.LinePlacementComposite.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.editor.styleeditor.placement;

import org.apache.commons.lang3.StringUtils;
import org.eclipse.jface.databinding.swt.ISWTObservableValue;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.IViewerObservableValue;
import org.eclipse.jface.databinding.viewers.ViewerProperties;
import org.eclipse.jface.viewers.ComboViewer;
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.Text;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.kalypso.commons.databinding.IDataBinding;
import org.kalypso.ui.editor.styleeditor.binding.IStyleInput;
import org.kalypso.ui.editor.styleeditor.binding.SLDBinding;
import org.kalypso.ui.editor.styleeditor.symbolizer.LinePlacementPerpendicularOffsetValue;
import org.kalypso.ui.internal.i18n.Messages;
import org.kalypsodeegree.graphics.sld.LinePlacement;

/**
 * @author Gernot Belger
 */
public class LinePlacementComposite extends Composite {
    private final IDataBinding m_binding;

    private final IStyleInput<LinePlacement> m_input;

    public LinePlacementComposite(final IDataBinding binding, final Composite parent,
            final IStyleInput<LinePlacement> input) {
        super(parent, SWT.NONE);

        m_binding = binding;
        m_input = input;

        getToolkit().adapt(this);
        setLayout(new GridLayout(2, false));

        createPlacementControl(this);
        createPerpendicularOffsetControl(this);
        createGapControl(this);
    }

    private FormToolkit getToolkit() {
        return m_binding.getToolkit();
    }

    private void createPlacementControl(final Composite parent) {
        final FormToolkit toolkit = getToolkit();

        toolkit.createLabel(parent, Messages.getString("LinePlacementComposite_0")); //$NON-NLS-1$

        final ComboViewer typeViewer = new ComboViewer(parent, SWT.DROP_DOWN | SWT.READ_ONLY);
        typeViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

        final LinePlacementControlValue handler = new LinePlacementControlValue(m_input);
        handler.configureViewer(typeViewer);

        final IViewerObservableValue target = ViewerProperties.singleSelection().observe(typeViewer);
        m_binding.bindValue(target, handler);
    }

    private void createPerpendicularOffsetControl(final Composite parent) {
        final FormToolkit toolkit = getToolkit();

        toolkit.createLabel(parent, Messages.getString("LinePlacementComposite_1")); //$NON-NLS-1$

        final Text offsetField = toolkit.createText(parent, StringUtils.EMPTY);
        offsetField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

        final ISWTObservableValue target = SWTObservables.observeText(offsetField, SLDBinding.TEXT_DEFAULT_EVENTS);

        m_binding.bindValue(target, new LinePlacementPerpendicularOffsetValue(m_input));
    }

    private void createGapControl(final Composite parent) {
        final FormToolkit toolkit = getToolkit();

        toolkit.createLabel(parent, Messages.getString("LinePlacementComposite_2")); //$NON-NLS-1$

        final Text gapField = toolkit.createText(parent, StringUtils.EMPTY);
        gapField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

        final ISWTObservableValue target = SWTObservables.observeText(gapField, SLDBinding.TEXT_DEFAULT_EVENTS);

        m_binding.bindValue(target, new LinePlacementGapValue(m_input));
    }
}