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 {}  {{Task}}

 */

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

import javax.swing.JComponent;

import javax.swing.JSpinner;

import javax.swing.SpinnerModel;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import org.gvsig.tools.dynobject.DynField;

import org.gvsig.tools.dynobject.DynObject;

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.serv.field.component.spinner.NullNumberEditor;

import org.gvsig.tools.swing.serv.field.component.spinner.NullableNumberSpinnerModel;

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

/**

 * Component for numeric {@link DynObject} fields.

 * 

 * @author 2010- C?sar Ordi?ana - gvSIG team

 */

public class JNumberDynFieldComponent extends AbstractJDynFieldComponent

        implements JDynFieldComponent, ChangeListener {

    private static final long serialVersionUID = -8120715001446683582L;

    private static Object NULL_VALUE = null;

    private SpinnerModel model;

    // private JPanel panel;

    private JSpinner spinner;

    /**

     * @param parent

     * @throws ServiceException

     * @see JDynFieldComponent#JDynFieldComponent(DynField, DynObject).

     */

    public JNumberDynFieldComponent(ValueField parent, DynField dynField)

            throws ServiceException {

        super(dynField, parent);

    }

    /*

     * (non-Javadoc)

     * 

     * @see org.gvsig.tools.swing.spi.AbstractJDynFieldComponent#afterUI()

     */

    @Override

    protected void afterUI() {

        // TODO Auto-generated method stub

    }

    /**

     * Creates a SpinnerModel for the component's spinner.

     */

    private SpinnerModel createSpinnerModel() {

        DynField field = this.getDynField();

        Number value = (Number) this.getFieldValue();

        return new NullableNumberSpinnerModel(field, value);

    }

    /*

     * (non-Javadoc)

     * 

     * @see org.gvsig.tools.swing.api.dynobject.JComponent#getComponent()

     */

        public JComponent asJComponent() {

        return spinner;

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent#getValue

     * ()

     */

    public Object getValue() {

        Object value = model.getValue();

        if ((value!=null)&&(value.equals(NULL_VALUE)))

                return null;

        return value;

    }

    /*

     * (non-Javadoc)

     * 

     * @see org.gvsig.tools.swing.spi.AbstractJDynFieldComponent#initData()

     */

    @Override

    protected void initData() {

        model = this.createSpinnerModel();

    }

    /**

     * Creates the component ui.

     */

    @Override

    protected void initUI() {

        // this.panel = new JPanel();

        // this.panel.setLayout(new BorderLayout());

        spinner = new JSpinner(model);

        spinner.setEditor(new NullNumberEditor(spinner));

        // this.panel.add(spinner, BorderLayout.CENTER);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent#isMandatory

     * ()

     */

    @Override

    public boolean isMandatory() {

        return this.getDynField().isMandatory();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent#requestFocus

     * ()

     */

    public void requestFocus() {

        spinner.requestFocus();

    }

    @Override

    public void saveStatus() {

        if (model != null) {

            this.setFieldValue(model.getValue());

        }

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent#setEnabled

     * (boolean)

     */

    public void setEnabled(boolean isEnabled) {

        spinner.getEditor().setEnabled(true);

    }

    /*

     * (non-Javadoc)

     * 

     * @seeorg.gvsig.tools.swing.spi.AbstractJDynFieldComponent#

     * setJDynFieldComponentListeners()

     */

    @Override

    protected void setJDynFieldComponentListeners() {

        model.addChangeListener(this);

    }

    /*

     * (non-Javadoc)

     * 

     * @see org.gvsig.tools.swing.spi.AbstractJDynFieldComponent#setReadOnly()

     */

    @Override

    protected void setReadOnly() {

        spinner.setEnabled(false);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * org.gvsig.tools.swing.api.dynobject.dynfield.JDynFieldComponent#setValue

     * (java.lang.Object)

     */

    protected void setNullValue() {

        model.setValue(NULL_VALUE);

    }

    protected void setNonNullValue(Object value) {

        model.setValue(value);

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * javax.swing.event.ChangeListener#stateChanged(javax.swing.event.ChangeEvent

     * )

     */

    public void stateChanged(ChangeEvent e) {

        this.fireValueChangedEvent();

    }

}