Application: gvSIG desktop » Library: org.gvsig.tools

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * 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.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2010 Institute of New Imaging Technologies (INIT): 

 *   http://www.init.uji.es

 * Geographic Information research group: 

 *   http://www.geoinfo.uji.es

 * Universitat Jaume I, Spain

 */

/**

 * 

 */

package org.gvsig.tools.swing.serv.field.component;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import javax.swing.ButtonGroup;

import javax.swing.JComponent;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import org.gvsig.tools.service.ServiceException;

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

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

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

/**

 * @author <a href="mailto:reinhold@uji.es">cmartin</a>

 * 

 */

public class JBooleanDynFieldComponent extends AbstractJDynFieldComponent

    implements JDynFieldComponent, ActionListener {

    private JRadioButton btTrue;

    private JRadioButton btFalse;

    private JRadioButton btUnknown;

    private Boolean value;

    private JPanel panel;

    private ButtonGroup group;

        /**

         * @param writable

         * @param dynField

         * @param value

         * @throws ServiceException

         */

        public JBooleanDynFieldComponent(ValueField parent)

        throws ServiceException {

                super(parent);

        if (parent.getDynField().isContainer()) {

            this.btUnknown.setEnabled(false);

        }

    }

    public void actionPerformed(ActionEvent e) {

        Object source = e.getSource();

        if (source == btTrue) {

            this.setValue(true);

        } else

            if (source == btFalse) {

                this.setValue(false);

            } else {

                this.setValue(null);

            }

    }

    @Override

    protected void afterUI() {

    }

    public JComponent asJComponent() {

        return panel;

    }

    public Object getValue() {

        return value;

    }

    @Override

    protected void initData() {

    }

    @Override

    protected void initUI() {

        // In initialization code:

        // Create the radio buttons.

        String txtTrue = this.translate("True");

        String txtFalse = this.translate("False");

        String txtUnkown = this.translate("Unknown");

        btTrue = new JRadioButton(txtTrue);

        btTrue.setMnemonic(KeyEvent.VK_T);

        btTrue.setActionCommand(txtTrue);

        btFalse = new JRadioButton(txtFalse);

        btFalse.setMnemonic(KeyEvent.VK_F);

        btFalse.setActionCommand(txtFalse);

        btUnknown = new JRadioButton(txtUnkown);

        btUnknown.setMnemonic(KeyEvent.VK_U);

        btUnknown.setActionCommand(txtUnkown);

        // Group the radio buttons.

        group = new ButtonGroup();

        group.add(btTrue);

        group.add(btFalse);

        group.add(btUnknown);

        // Register a listener for the radio buttons.

        btUnknown.addActionListener(this);

        btTrue.addActionListener(this);

        btFalse.addActionListener(this);

        // Initializing panel

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

        panel = this.createBoxLayout(btTrue, btFalse, 1, 1, null);

        panel.add(btUnknown);

    }

    @Override

    public boolean isMandatory() {

        return this.getDynField().isMandatory();

    }

    public void requestFocus() {

        btFalse.requestFocus();

    }

    public void setEnabled(boolean isEnabled) {

        // We are trying to enable something that is ReadOnly.

        // This is not possible

        if ((this.isReadOnly()) && (isEnabled == true)) {

            return;

        }

        btFalse.setEnabled(isEnabled);

        btTrue.setEnabled(isEnabled);

        btUnknown.setEnabled(isEnabled);

    }

    @Override

    protected void setJDynFieldComponentListeners() {

        // TODO Auto-generated method stub

    }

    @Override

    protected void setReadOnly() {

        this.setEnabled(false);

    }

    protected void setNullValue() {

        btTrue.setSelected(false);

        btFalse.setSelected(false);

        btUnknown.setSelected(true);

        this.value = null;

    }

    protected void setNonNullValue(Object value) {

        if (value instanceof String) {

            setNullValue();

            return;

        }

        this.value = (Boolean) value;

        btUnknown.setSelected(false);

        if (this.value == true) {

            btTrue.setSelected(true);

            btFalse.setSelected(false);

        } else

            if (this.value == false) {

                btFalse.setSelected(true);

                btTrue.setSelected(false);

            } else {

                setNullValue();

            }

    }

}