org.kalypso.ui.editor.styleeditor.symbolizer.TextSymbolizerLabelField.java Source code

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Here is the source code for org.kalypso.ui.editor.styleeditor.symbolizer.TextSymbolizerLabelField.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.symbolizer;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.lang3.ObjectUtils;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.LabelProvider;
import org.kalypso.commons.databinding.conversion.ITypedConverter;
import org.kalypso.gmlschema.feature.IFeatureType;
import org.kalypso.gmlschema.property.IPropertyType;
import org.kalypso.gmlschema.property.IValuePropertyType;
import org.kalypso.ui.editor.styleeditor.binding.IStyleInput;
import org.kalypso.ui.editor.styleeditor.binding.InputWithContextObservableValue;
import org.kalypsodeegree.filterencoding.Expression;
import org.kalypsodeegree.graphics.sld.ParameterValueType;
import org.kalypsodeegree.graphics.sld.TextSymbolizer;
import org.kalypsodeegree_impl.filterencoding.PropertyName;
import org.kalypsodeegree_impl.graphics.sld.StyleFactory;

/**
 * @author Gernot Belger
 */
public class TextSymbolizerLabelField extends InputWithContextObservableValue<TextSymbolizer, ParameterValueType> {
    private final ITypedConverter<ParameterValueType, String> m_converter;

    public TextSymbolizerLabelField(final IStyleInput<TextSymbolizer> input,
            final ITypedConverter<ParameterValueType, String> converter) {
        super(input, ParameterValueType.class);

        m_converter = converter;
    }

    @Override
    protected ParameterValueType getValueFromData(final TextSymbolizer data) {
        return data.getLabel();
    }

    /**
     * @see org.kalypso.ui.editor.styleeditor.forms.InputWithContextObservableValue#setValueToInput(java.lang.Object, java.lang.Object)
     */
    @Override
    protected void setValueToInput(final TextSymbolizer data, final ParameterValueType value) {
        data.setLabel(value);
    }

    @Override
    protected boolean valueEquals(final ParameterValueType value1, final ParameterValueType value2) {
        final String oldExpression = m_converter.convert(value1);
        final String newExpression = m_converter.convert(value2);
        return ObjectUtils.equals(oldExpression, newExpression);
    }

    public void configureViewer(final ComboViewer viewer) {
        viewer.setLabelProvider(new LabelProvider());
        viewer.setContentProvider(new ArrayContentProvider());
        viewer.setInput(createInput(getSource()));
    }

    private Object createInput(final IStyleInput<TextSymbolizer> input) {
        final IFeatureType featureType = input.getFeatureType();

        final Collection<String> patterns = new ArrayList<>();

        final IPropertyType[] properties = featureType.getProperties();
        for (final IPropertyType pt : properties) {
            if (pt instanceof IValuePropertyType) {
                final IValuePropertyType vpt = (IValuePropertyType) pt;
                if (!vpt.isGeometry()) {
                    final String path = vpt.getQName().getLocalPart();
                    final ParameterValueType pvt = StyleFactory
                            .createParameterValueType(new Expression[] { new PropertyName(path, null) });
                    patterns.add(m_converter.convert(pvt));
                }
            }
        }

        return patterns.toArray(new String[patterns.size()]);
    }
}