| gvSIG desktop 1

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2012 gvSIG Association

 *

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.mapcontrol.swing.dynfield;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BoxLayout;

import javax.swing.JCheckBox;

import javax.swing.JComponent;

import javax.swing.JPanel;

import javax.swing.JTextField;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.i18n.Messages;

import org.gvsig.tools.dynobject.DynField;

import org.gvsig.tools.service.ServiceException;

import org.gvsig.tools.swing.api.dynobject.dynfield.ValueField;

import org.gvsig.tools.swing.spi.AbstractJDynFieldComponent;

/**

 * 

 * This class provides a swing component

 * to represent {@link Geometry} objects in dialogs/forms

 * 

 * 

 * @author jldominguez

 *

 */

public class GeometryDynFieldComponent extends

AbstractJDynFieldComponent implements ActionListener {

    private static Logger logger =

        LoggerFactory.getLogger(GeometryDynFieldComponent.class);

    private JCheckBox wktCheckBox = null; 

    private JTextField txtField = null; 

    private JPanel panel = null;

    public GeometryDynFieldComponent(

        DynField definition,

        ValueField value,

        boolean writeable) throws ServiceException {

        super(definition, value, false /* cannot edit geometry. writeable*/);

        init();

    }

    public void setEnabled(boolean isEnabled) {

    }

    public void requestFocus() {

    }

    public JComponent asJComponent() {

        return panel;

    }

    public Object getValue() {

        return this.getFieldValue();

    }

    protected void setJDynFieldComponentListeners() {

    }

    protected void afterUI() {

    }

    protected void initData() {

    }

    private String getValueText(boolean wkt) {

        Object val = this.getFieldValue();

        String txt = null;

        if (val == null || (!(val instanceof Geometry))) {

            txt = "[" + Messages.getText("_Invalid_value") + "]";

        } else {

            Geometry geom = (Geometry) val;

            if (wkt) {

                try {

                    txt = geom.convertToWKT();

                } catch (Exception e) {

                    logger.info("Error while getting WKT: " + e.getMessage(), e);

                    txt = "[" + Messages.getText("_Unable_to_show_value") + "]";

                }

            } else {

                txt = geom.getGeometryType().getName();

            }

        }

        return txt;

    }

    protected void initUI() {

        wktCheckBox =

            new JCheckBox(Messages.getText("_Show_as_text") + "  ");

        wktCheckBox.setSelected(false);

        wktCheckBox.addActionListener(this);

        txtField = new JTextField();

        // txtField.setEditable(false);

        txtField.setText(this.getValueText(wktCheckBox.isSelected()));

        txtField.setHorizontalAlignment(JTextField.LEFT);

        panel = new JPanel(); // new GridBagLayout());

        panel.setLayout(new BoxLayout(panel, BoxLayout.LINE_AXIS));

        /*

        GridBagConstraints constr = new GridBagConstraints();

        constr.insets = new Insets(3, 3, 3, 3);

        constr.gridx = 0;

        constr.gridy = 0;

        constr.fill = GridBagConstraints.NONE;

        */

        panel.add(wktCheckBox); // , constr);

        /*

        constr.gridx = 1;

        constr.fill = GridBagConstraints.HORIZONTAL;

        */

        panel.add(txtField); // , constr);

    }

    protected void setNonNullValue(Object value) {

    }

    protected void setNullValue() {

    }

    protected void setReadOnly() {

    }

    public void actionPerformed(ActionEvent e) {

        // update txt field when check box state changes

        if (txtField != null && wktCheckBox != null) {

            txtField.setText(this.getValueText(wktCheckBox.isSelected()));

            txtField.setHorizontalAlignment(JTextField.LEFT);

        }

    }

}