de.catma.ui.repository.wizard.ComboBoxColumnGenerator.java Source code

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Here is the source code for de.catma.ui.repository.wizard.ComboBoxColumnGenerator.java

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/*   
 *   CATMA Computer Aided Text Markup and Analysis
 *   
 *   Copyright (C) 2009-2013  University Of Hamburg
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.catma.ui.repository.wizard;

import java.util.Collection;

import com.vaadin.data.Property;
import com.vaadin.ui.ComboBox;
import com.vaadin.ui.Component;
import com.vaadin.ui.Table;

public class ComboBoxColumnGenerator implements Table.ColumnGenerator {

    private Collection<?> options;
    private ValueChangeListenerGenerator valueChangeListenerGenerator;

    public ComboBoxColumnGenerator(Collection<?> options,
            ValueChangeListenerGenerator valueChangeListenerGenerator) {
        this.options = options;
        this.valueChangeListenerGenerator = valueChangeListenerGenerator;
    }

    public Component generateCell(Table source, Object itemId, Object columnId) {
        // Get the object stored in the cell as a property
        Property prop = source.getItem(itemId).getItemProperty(columnId);

        ComboBox comboBox = new ComboBox(null, options);
        comboBox.setNullSelectionAllowed(false);
        comboBox.setPropertyDataSource(prop);
        comboBox.setImmediate(true);

        if (valueChangeListenerGenerator != null) {
            comboBox.addValueChangeListener(
                    valueChangeListenerGenerator.generateValueChangeListener(source, itemId, columnId));
        }

        return comboBox;
    }
}