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.raster.filter.regionalpha;

import java.awt.BorderLayout;

import java.util.ArrayList;

import javax.swing.JCheckBox;

import javax.swing.JLabel;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import javax.swing.event.TableModelEvent;

import javax.swing.event.TableModelListener;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.gui.beans.table.TableContainer;

import org.gvsig.gui.beans.table.exceptions.NotInitializeException;

import org.gvsig.raster.dataset.Params;

import org.gvsig.raster.grid.filter.RegistrableFilterListener;

import org.gvsig.raster.grid.roi.ROI;

import org.gvsig.raster.util.RasterToolsUtil;

import com.iver.cit.gvsig.fmap.layers.FLayer;

/**

 * Es el interfaz gr?fico que contiene el filtro de regiones de interes.

 * En el se muestra una tabla con las posibles Rois a seleccionar y tambi?n

 * un Checkbox para definir si la seleccion es normal o invertida.

 * 

 * @version 17/01/2008

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class RegionAlphaUI extends RegistrableFilterListener implements TableModelListener, ChangeListener {

        private static final long serialVersionUID = 4525736825113598035L;

        private TableContainer tableContainer = null;

        private FLayer         layer          = null;

        private JLabel         warning        = null;

        private ArrayList      rois           = null;

        private JCheckBox      negative       = null;

        private boolean        lastInv        = false;

        /**

         * Constructor de un RegionAlphaUI

         */

        public RegionAlphaUI() {

                initialize();

        }

        /**

         * Inicializa los elementos gr?ficos.

         */

        private void initialize() {

                setLayout(new BorderLayout());

                add(getTableContainer(), BorderLayout.CENTER);

                add(getWarning(), BorderLayout.NORTH);

                add(getInverse(), BorderLayout.SOUTH);

        }

        /**

         * Obtiene el contenedor con la tabla.

         * @return

         */

        private TableContainer getTableContainer() {

                if (tableContainer == null) {

                        String[] columnNames = {" ", "Nombre", ""};

                        int[] columnWidths = {22, 334, 0};

                        tableContainer = new TableContainer(columnNames, columnWidths);

                        tableContainer.setModel("CheckBoxModel");

                        tableContainer.initialize();

                        tableContainer.setControlVisible(false);

                        tableContainer.setMoveRowsButtonsVisible(false);

                        tableContainer.getTable().getJTable().getColumnModel().getColumn(0).setMinWidth(22);

                        tableContainer.getTable().getJTable().getColumnModel().getColumn(0).setMaxWidth(22);

                        tableContainer.getTable().getJTable().getColumnModel().getColumn(2).setMinWidth(0);

                        tableContainer.getTable().getJTable().getColumnModel().getColumn(2).setMaxWidth(0);

                        tableContainer.getModel().addTableModelListener(this);

                }

                return tableContainer;

        }

        /**

         * Obtiene el checkbox que informa de si selecciona lo que contiene las Rois

         * o su inversa.

         * @return JCheckBox

         */

        private JCheckBox getInverse() {

                if (negative == null) {

                        negative = new JCheckBox();

                        negative.setText(RasterToolsUtil.getText(this, "inversa"));

                        negative.addChangeListener(this);

                }

                return negative;

        }

        /**

         * Obtiene el mensaje de aviso de que no hay rois en la lista. Esta etiqueta solo

         * es mostrada en caso en que la capa no tenga ROIs asociadas.

         * @return JLabel Etiqueta con el mensaje de aviso.

         */

        public JLabel getWarning() {

                if(warning == null) {

                        warning = new JLabel(RasterToolsUtil.getText(this, "rois_needed"));

                        warning.setVisible(false);

                }

                return warning;

        }

        /**

         * Asigna la lista de regiones de inter?s.

         * @param rois Lista de ROIs

         */

        public void setRois(ArrayList rois) {

                this.rois = rois;

        }

        /**

         * Asigna la capa.

         * @param layer

         */

        public void setLayer(FLayer layer) {

                this.layer = layer;

                if (layer == null)

                        return;

                if(((FLyrRasterSE) layer).getRois() == null || ((FLyrRasterSE) layer).getRois().size() == 0)

                        getWarning().setVisible(true);

                ArrayList roisArray = ((FLyrRasterSE) layer).getRois();

                if (roisArray != null) {

                        for (int i = 0; i < roisArray.size(); i++) {

                                ROI roi = (ROI) roisArray.get(i);

                                Object row[] = {"", "", ""};

                                boolean active = false;

                                if (rois != null) {

                                        for (int r = 0; r < rois.size(); r++) {

                                                if (((ROI) rois.get(r)) == roi) {

                                                        active = true;

                                                        break;

                                                }

                                        }

                                }

                                row[0] = new Boolean(active);

                                row[1] = roi.getName(); 

                                row[2] = new Integer(i);

                                try {

                                        getTableContainer().addRow(row);

                                } catch (NotInitializeException e) {

                                }

                        }

                }

        }

        /**

         * Obtiene la lista de ROIs seleccionadas

         * @return ArrayList con la lista de ROIs

         */

        private ArrayList getSelectedROIs() {

                if (layer == null)

                        return null;

                ArrayList roisArray = ((FLyrRasterSE) layer).getRois();

                ArrayList selected = new ArrayList();

                if (roisArray != null) {

                        for (int i = 0; i < roisArray.size(); i++) {

                                if (((Boolean) tableContainer.getModel().getValueAt(i, 0)).booleanValue()) {

                                        selected.add(roisArray.get(i));

                                }

                        }

                }

                return selected;

        }

        /**

         * Sobrecargamos el m?todo getParams para que siempre devuelva

         * algo.

         */

        public Params getParams() {

                params = new Params();

                params.setParam("rois",

                                getSelectedROIs(),

                                -1,

                                null);

                params.setParam("inverse",

                                new Boolean(getInverse().isSelected()),

                                -1,

                                null);

                return params;

        }

        /*

         * (non-Javadoc)

         * @see javax.swing.event.TableModelListener#tableChanged(javax.swing.event.TableModelEvent)

         */

        public void tableChanged(TableModelEvent e) {

                callStateChanged();

        }

        /**

         * Cambio de estado para el check de inversa

         * @param e

         */

        public void stateChanged(ChangeEvent e) {

                if (e.getSource().equals(getInverse())) {

                        if (((JCheckBox) e.getSource()).isSelected() != lastInv) {

                                callStateChanged();

                                lastInv = ((JCheckBox) e.getSource()).isSelected();

                        }

                }

        }

}