Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.gui.beans.table;

import java.awt.Dimension;

import java.net.URL;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JPanel;

import org.gvsig.gui.beans.Messages;

import org.gvsig.gui.beans.table.listeners.TableListener;

import org.gvsig.gui.util.StatusComponent;

public class MoveRowsPanel extends JPanel {

  private static final long serialVersionUID = -4496318143555472677L;

        private int             HEIGHT_BUTTONS  = 19;       // 16 estaria bien

        private JButton         bUp             = null;

        private JButton         bDown           = null;

        private int             selected        = -1;

        private int             cont            = 0;

        private String          pathToImages    = "images/"; // "/com/iver/cit/gvsig/gui/panels/images/";

        /**

         * Objeto para controlar el estado de los componentes visuales 

         */

        private StatusComponent statusComponent = null;

        /**

         * This is the default constructor

         */

        public MoveRowsPanel(TableListener tableListener) {

                initialize(tableListener);

        }

        private void initialize(TableListener tableListener) {

                statusComponent = new StatusComponent(this);

                setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.CENTER, 1, 0));

                add(getBUp());

                add(getBDown());

                getBUp().addActionListener(tableListener);

                getBDown().addActionListener(tableListener);

        }

        public void setSelectedIndex(int i, int cont) {

                selected = i;

                this.cont = cont;

                checkArrows();

        }

        /**

         * Comprueba la posici?n del combo para ver si tiene que

         * habilitar o deshabilitar las flechas de delante y detr?s.

         */

        private void checkArrows(){

                if (!statusComponent.isEnabled())

                        return;

                if (selected == -1) {

                        getBUp().setEnabled(false);

                        getBDown().setEnabled(false);

                        return;

                }

                if (selected == 0) {

                        getBUp().setEnabled(false);

                } else {

                        getBUp().setEnabled(true);

                }

                if (selected == (cont - 1)) {

                        getBDown().setEnabled(false);

                } else {

                        getBDown().setEnabled(true);

                }

        }        

        /**

         * This method initializes bUp

         * @return javax.swing.JButton

         */

        public JButton getBUp() {

                if (bUp == null) {

                        bUp = new JButton("");

                        bUp.setEnabled(true);

                        bUp.setPreferredSize(new Dimension(22, HEIGHT_BUTTONS));

                        URL url = getClass().getResource(pathToImages + "up-16x16.png");

                        if(url != null)

                                bUp.setIcon(new ImageIcon(url));

                        bUp.setActionCommand("");

                        bUp.setToolTipText(Messages.getText("subir"));

                }

                return bUp;

        }

        /**

         * This method initializes bDown

         * @return javax.swing.JButton

         */

        public JButton getBDown() {

                if (bDown == null) {

                        bDown = new JButton("");

                        bDown.setEnabled(true);

                        bDown.setPreferredSize(new Dimension(22, HEIGHT_BUTTONS));

                        URL url = getClass().getResource(pathToImages + "down-16x16.png");

                        if(url != null)

                                bDown.setIcon(new ImageIcon(url));

                        bDown.setActionCommand("");

                        bDown.setToolTipText(Messages.getText("bajar"));

                }

                return bDown;

        }

        /**

         * Esta funci?n deshabilita todos los controles y guarda sus valores

         * de habilitado o deshabilitado para que cuando se ejecute restoreControlsValue

         * se vuelvan a quedar como estaba

         */

        public void disableAllControls(){

                statusComponent.setEnabled(false);

        }

        /**

         * Esta funci?n deja los controles como estaban al ejecutar la funci?n

         * disableAllControls

         */

        public void restoreControlsValue(){

                statusComponent.setEnabled(true);

        }        

}