Application: gvSIG desktop » gvSIG geoprocess

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

 *

 * Copyright (C) 2010 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.geoprocess.algorithm.merge;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JLabel;

import javax.swing.JPanel;

import es.unex.sextante.core.GeoAlgorithm;

import es.unex.sextante.core.ObjectAndDescription;

import es.unex.sextante.core.OutputObjectsSet;

import es.unex.sextante.core.ParametersSet;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IVectorLayer;

import es.unex.sextante.gui.algorithm.GeoAlgorithmParametersPanel;

import es.unex.sextante.gui.core.SextanteGUI;

import es.unex.sextante.outputs.Output;

import org.gvsig.geoprocess.core.CompositeSourceOutputChannel;

import org.gvsig.geoprocess.sextante.gui.algorithm.AlgorithmOutputPanel;

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

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

/**

 * Panel for merge algorithm

 * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>

 */

public class MergeParametersPanel extends GeoAlgorithmParametersPanel implements ActionListener {

        private static final long                serialVersionUID   = 1L;

        private GeoAlgorithm                     m_Algorithm        = null;

        private JComboBox                        fieldsCombo        = null;

        private JCheckBox                        allLayers          = null;

        //private AlgorithmOutputPanel             output             = null;

        private final String[]                   columnNames        = { "Selected", "Layer" };

        private final int[]                      columnWidths       = { 35, 334 };

        private TableContainer                   table              = null;

        private ObjectAndDescription[]           layerList          = null;

        private AlgorithmOutputPanel             algorithmOutputPanel  = null;

        public MergeParametersPanel() {

                super();

        }

    public void init(GeoAlgorithm algorithm) {

            m_Algorithm = algorithm;

            initGUI();

    }

        private void initGUI() {

                GridBagLayout gbl = new GridBagLayout();

                this.setLayout(gbl);

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.gridx = 0;

                gbc.gridy = 0;

                gbc.insets = new Insets(5, 5, 8, 5);

                this.add(getAllLayersCheck(), gbc);

                gbc.gridy = 1;

                gbc.fill = GridBagConstraints.BOTH;

                gbc.insets = new Insets(0, 0, 12, 0);

                gbc.weighty = 1.0;

                this.add(getCheckBoxTable(), gbc);

                gbc.gridy = 2;

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.insets = new Insets(5, 5, 8, 5);

                gbc.weightx = 1.0;

                gbc.weighty = 0;

                this.add(getFieldsComboPanel(Sextante.getText("Field"), getFieldsCombo()), gbc);

                gbc.gridy = 3;

                this.add(getAlgorithmOutputPanel(), gbc);

                initTable();

        }

        /**

         * Gets the output panel

         * @return

         */

        private AlgorithmOutputPanel getAlgorithmOutputPanel() {

                if(algorithmOutputPanel == null)

                    algorithmOutputPanel = new AlgorithmOutputPanel();

                return algorithmOutputPanel;

        }

        /**

         * Gets a new JPanel with the text and JComboBox 

         * @param text

         * @param combo

         * @return

         */

        public JPanel getFieldsComboPanel(String text, JComboBox combo) {

                JPanel panel = new JPanel();

                GridBagLayout gbl = new GridBagLayout();

                panel.setLayout(gbl);

                GridBagConstraints gbc = new GridBagConstraints();

                gbc.fill = GridBagConstraints.NONE;

                gbc.weightx = 0;

                gbc.gridx = 0;

                gbc.insets = new Insets(0, 2, 0, 50);

                JLabel label = new JLabel(text);

                label.setPreferredSize(new Dimension(80, 18));

                panel.add(label, gbc);

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weightx = 1.0;

                gbc.gridx = 1;

                gbc.anchor = GridBagConstraints.EAST;

                gbc.insets = new Insets(0, 2, 0, 0);

                panel.add(combo, gbc);

                return panel;

        }

        /**

         * Gets a ComboBox

         * @return

         */

        public JComboBox getFieldsCombo() {

                if(fieldsCombo == null) {

                        fieldsCombo = new JComboBox();

                        fieldsCombo.setPreferredSize(new Dimension(0, 18));

                        ObjectAndDescription[] fieldList = getLayerList();

                        fieldsCombo.removeAllItems();

                        for (int i = 0; i < fieldList.length; i++) 

                                fieldsCombo.addItem(fieldList[i]);

                }

                return fieldsCombo;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getAllLayersCheck() {

                if(allLayers == null) {

                        allLayers = new JCheckBox(Sextante.getText("select_all_layers"));

                        allLayers.addActionListener(this);

                }

                return allLayers;

        }

        /**

         * Gets the summary table

         * @return TableContainer

         */

        public TableContainer getCheckBoxTable() {

                if (table == null) {

                        table = new TableContainer(columnNames, columnWidths, null);

                        table.setModel("CheckBoxModel");

                        table.setControlVisible(false);

                        table.initialize();

                }

                return table;

        }

        //------------------------------------------------------------

        /*

         * (non-Javadoc)

         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

         */

        public void actionPerformed(ActionEvent e) {

                if(e.getSource() == getAllLayersCheck()) {

                        //Selecci?n de todas las capas de la tabla

                        try {

                                for (int i = 0; i < getCheckBoxTable().getRowCount(); i++) {

                                        if(getAllLayersCheck().isSelected())

                                                getCheckBoxTable().getModel().setValueAt(new Boolean(true), i, 0);

                                        else

                                                getCheckBoxTable().getModel().setValueAt(new Boolean(false), i, 0);

                                }

                        } catch (NotInitializeException e1) {

                                Sextante.addErrorToLog(e1);

                        }

                }

        }

        /**

         * Adds to the table one entry for each field

         */

        private void initTable() {

                try {

                        getCheckBoxTable().removeAllRows();

                        ObjectAndDescription[] layerList = getLayerList();

                        for (int i = 0; i < layerList.length; i++)

                                addTableRow(layerList[i].getDescription());

                } catch (NotInitializeException e) {

                        Sextante.addErrorToLog(e);

                }

        }

        /**

         * Adds one entry to the table

         * @param layerName 

         *        Layer name

         * @throws NotInitializeException 

         */

        private void addTableRow(String layerName) throws NotInitializeException {

                Object[] row = {        new Boolean(false), 

                                                        layerName };

                getCheckBoxTable().addRow(row);

        }

        @Override

    public void assignParameters() {

                try {

                        ParametersSet params = m_Algorithm.getParameters();

                        params.getParameter(MergeAlgorithm.FIELDLAYER).setParameterValue(getSelectedVectorLayer());

                        params.getParameter(MergeAlgorithm.LAYERS).setParameterValue(getSelectedLayerList());

                        OutputObjectsSet ooSet = m_Algorithm.getOutputObjects();

                        Output out = ooSet.getOutput(MergeAlgorithm.RESULT);

                        out.setOutputChannel(new CompositeSourceOutputChannel(getAlgorithmOutputPanel().getOutputParameters()));

                } catch (Exception e) {

                        Sextante.addErrorToLog(e);

                }

        }

        @Override

        public void setOutputValue(String arg0, String arg1) {

        }

        @Override

        public void setParameterValue(String arg0, String arg1) {

        }

        /**

         * Gets the input layer list

         * @return

         */

        private ObjectAndDescription[] getLayerList() {

                if(layerList == null) {

                        IVectorLayer[] layers = SextanteGUI.getInputFactory()

                        .getVectorLayers(IVectorLayer.SHAPE_TYPE_WRONG);

                        layerList = new ObjectAndDescription[layers.length];

                        for (int i = 0; i < layers.length; i++)

                                layerList[i] = new ObjectAndDescription(layers[i].getName(), layers[i]);

                }

                return layerList;

        }

        /**

         * Gets the list of selected layers

         * @return

         */

        private ArrayList<IVectorLayer> getSelectedLayerList() {

                ObjectAndDescription[] layerList = getLayerList();

                ArrayList<IVectorLayer> vLayer = new ArrayList<IVectorLayer>();

                for (int i = 0; i < layerList.length; i++) {

                        Boolean check = (Boolean)getCheckBoxTable().getModel().getValueAt(i, 0);

                        if(check.booleanValue())

                                vLayer.add((IVectorLayer)layerList[i].getObject());

                }

                return vLayer;

        }

        /**

         * Gets the selected vector layer in the JComboBox

         * @return

         */

        private IVectorLayer getSelectedVectorLayer() {

                if(getFieldsCombo().getSelectedItem() != null)

                        return (IVectorLayer)((ObjectAndDescription)getFieldsCombo().getSelectedItem()).getObject();

                return null;

        }

}