JUOMPane.java example

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/*
 *    Geotoolkit - An Open Source Java GIS Toolkit
 *    http://www.geotoolkit.org
 *
 *    (C) 2007 - 2008, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2008 - 2009, Johann Sorel
 *
 *    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;
 *    version 2.1 of the License.
 *
 *    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.
 */
package org.geotoolkit.gui.swing.style;

import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.measure.quantity.Length;
import javax.measure.Unit;
import javax.swing.DefaultComboBoxModel;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.LayoutStyle.ComponentPlacement;
import org.geotoolkit.gui.swing.resource.MessageBundle;
import org.apache.sis.measure.Units;

/**
 *
 * @author Johann Sorel
 * @module
 */
public class JUOMPane extends StyleElementEditor<Unit>{

    /** Creates new form JUOMPane */
    public JUOMPane() {
        super(Unit.class);
        initComponents();
    }

    @Override
    public void parse(final Unit target) {
        if(Units.METRE.equals(target)){
            jcb_uom.setSelectedIndex(1);
        }else if(Units.FOOT.equals(target)){
            jcb_uom.setSelectedIndex(2);
        }else {
            jcb_uom.setSelectedIndex(0);
        }
    }

    @Override
    public Unit<Length> create() {
        switch(jcb_uom.getSelectedIndex()){
            case 1 :
                return Units.METRE;
            case 2 :
                return Units.FOOT;
            default :
                return Units.POINT;
        }
    }

    @Override
    protected Object[] getFirstColumnComponents() {
        return new Object[]{guiLabel};
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        guiLabel = new JLabel();
        jcb_uom = new JComboBox();

        setOpaque(false);

        guiLabel.setText(MessageBundle.format("unit")); // NOI18N

        jcb_uom.setModel(new DefaultComboBoxModel(new String[] { "Pixels", "Meters", "Feet" }));
        jcb_uom.addItemListener(new ItemListener() {
            public void itemStateChanged(ItemEvent evt) {
                jcb_uomItemStateChanged(evt);
            }
        });

        GroupLayout layout = new GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(guiLabel)
                .addPreferredGap(ComponentPlacement.RELATED)
                .addComponent(jcb_uom, 0, 63, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(Alignment.LEADING)
            .addGroup(layout.createParallelGroup(Alignment.BASELINE)
                .addComponent(guiLabel)
                .addComponent(jcb_uom, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void jcb_uomItemStateChanged(ItemEvent evt) {//GEN-FIRST:event_jcb_uomItemStateChanged
        // TODO add your handling code here:
        firePropertyChange(PROPERTY_UPDATED, null, create());
    }//GEN-LAST:event_jcb_uomItemStateChanged


    // Variables declaration - do not modify//GEN-BEGIN:variables
    private JLabel guiLabel;
    private JComboBox jcb_uom;
    // End of variables declaration//GEN-END:variables

}