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.sextante.app.algorithm.spatialjoin;

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 javax.swing.ComboBoxModel;

import javax.swing.DefaultComboBoxModel;

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.gui.AlgorithmOutputPanel;

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

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

/**

 * Panel for dissolve algorithm

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

 */

public class SpatialJoinParametersPanel extends GeoAlgorithmParametersPanel implements ActionListener {

        private static final long                serialVersionUID   = 1L;

        private GeoAlgorithm                     m_Algorithm        = null;

        private JComboBox                        layersCombo        = null;

        private JComboBox                        layersJoinCombo    = null;

        private JCheckBox                        selectionOnly      = null;

        private JCheckBox                        nearest       = null;

        private AlgorithmOutputPanel             output             = null;

        private final String[]                   columnNames        = { "Min", "Max", "Sum", "Avg", "Field ID" };

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

        private TableContainer                   table              = null;

        public SpatialJoinParametersPanel() {

                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(0, 0, 8, 0);

                this.add(getComboPanel(Sextante.getText("input_layers"), getLayers1Combo()), gbc);

                gbc.gridy = 1;

                this.add(getComboPanel(Sextante.getText("input_layers_join"), getLayers2Combo()), gbc);

                gbc.gridy = 2;

                this.add(getSelectionCheck(), gbc);

                gbc.gridy = 3;

                this.add(getNearestCheck(), gbc);

                gbc.gridy = 4;

                this.add(new JLabel(Sextante.getText("summary_function")), gbc);

                gbc.gridy = 5;

                gbc.fill = GridBagConstraints.BOTH;

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

                gbc.weighty = 1.0;

                this.add(getRadioButtonTable(), gbc);

                gbc.gridy = 6;

                gbc.fill = GridBagConstraints.HORIZONTAL;

                gbc.weighty = 0.0;

                this.add(getAlgorithmOutputPanel(), gbc);

                initTable();

                getRadioButtonTable().setVisible(false);

        }

        /**

         * Gets the output panel

         * @return

         */

        private AlgorithmOutputPanel getAlgorithmOutputPanel() {

                if(output == null)

                        output = new AlgorithmOutputPanel();

                return output;

        }

        /**

         * Gets a new JPanel with the text and JComboBox 

         * @param text

         * @param combo

         * @return

         */

        public JPanel getComboPanel(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, 5);

                JLabel label = new JLabel(text);

                label.setPreferredSize(new Dimension(180, 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 getLayers1Combo() {

                if(layersCombo == null) {

                        layersCombo = new JComboBox();

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

                        ComboBoxModel comboModel = new DefaultComboBoxModel(getLayerList());

                        layersCombo.setModel(comboModel);

                        layersCombo.addActionListener(this);

                }

                return layersCombo;

        }

        /**

         * Gets a ComboBox

         * @return

         */

        public JComboBox getLayers2Combo() {

                if(layersJoinCombo == null) {

                        layersJoinCombo = new JComboBox();

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

                        ComboBoxModel comboModel = new DefaultComboBoxModel(getLayerList());

                        layersJoinCombo.setModel(comboModel);

                        layersJoinCombo.addActionListener(this);

                }

                return layersJoinCombo;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getSelectionCheck() {

                if(selectionOnly == null) {

                        selectionOnly = new JCheckBox(Sextante.getText("selected_geometries"));

                }

                return selectionOnly;

        }

        /**

         * Gets a CheckBox

         * @return

         */

        public JCheckBox getNearestCheck() {

                if(nearest == null) {

                        nearest = new JCheckBox(Sextante.getText("use_the_nearest"));

                        nearest.setSelected(true);

                        nearest.addActionListener(this);

                }

                return nearest;

        }

        /**

         * Gets the summary table

         * @return TableContainer

         */

        public TableContainer getRadioButtonTable() {

                if (table == null) {

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

                        table.setModel("ARGBBandSelectorModel");

                        table.setControlVisible(false);

                        table.initialize();

                }

                return table;

        }

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

        /*

         * (non-Javadoc)

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

         */

        @SuppressWarnings("unchecked")

        public void actionPerformed(ActionEvent e) {

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

                        if(!getNearestCheck().isSelected())

                                getRadioButtonTable().setVisible(true);

                        else

                                getRadioButtonTable().setVisible(false);

                }

                if(e.getSource() ==  getLayers2Combo()) {

                        initTable();

                        //If the second layer has not numerical fields only the nearest method can be applied

                        IVectorLayer lyr = getSelectedVectorLayer2();

                        Class[] types = lyr.getFieldTypes();

                        boolean hasNumericField = false;

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

                                if(types[i] == Integer.class 

                                                || types[i] == Double.class 

                                                || types[i] == Float.class 

                                                || types[i] == Short.class) {

                                        hasNumericField = true;

                                        break;

                                }

                        }

                        if(!hasNumericField)

                                getNearestCheck().setSelected(true);

                }

        }

        /**

         * Adds to the table one entry for each field

         */

        private void initTable() {

                try {

                        getRadioButtonTable().removeAllRows();

                        for (int i = 0; i < getSelectedVectorLayer().getFieldCount(); i++)

                                addTableRow(getSelectedVectorLayer().getFieldName(i));

                } catch (NotInitializeException e) {

                        Sextante.addErrorToLog(e);

                }

        }

        /**

         * A?ade una banda a la tabla bandas de la imagen asignandole un nombre y

         * valor a los checkbox

         * @param bandName Nombre de la banda

         * @throws NotInitializeException 

         */

        private void addTableRow(String fieldName) throws NotInitializeException {

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

                                                        new Boolean(false), 

                                                        new Boolean(false), 

                                                        new Boolean(false), 

                                                        fieldName };

                getRadioButtonTable().addRow(row);

        }

        @Override

        public void assignParameters() {

                try {

                        ParametersSet params = m_Algorithm.getParameters();

                        params.getParameter(SpatialJoinAlgorithm.LAYER1).setParameterValue(getSelectedVectorLayer());

                        params.getParameter(SpatialJoinAlgorithm.LAYER2).setParameterValue(getSelectedVectorLayer2());

                        params.getParameter(SpatialJoinAlgorithm.SELECTED_GEOM).setParameterValue(getSelectionCheck().isSelected());

                        params.getParameter(SpatialJoinAlgorithm.NEAREST).setParameterValue(getNearestCheck().isSelected());

                        params.getParameter(SpatialJoinAlgorithm.FUNCTION_LIST).setParameterValue(getValues());

                        OutputObjectsSet ooSet = m_Algorithm.getOutputObjects();

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

                        AlgorithmOutputPanel fsp = getAlgorithmOutputPanel();

                        out.setOutputChannel(new CompositeSourceOutputChannel(fsp.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() {

                IVectorLayer[] layers = SextanteGUI.getInputFactory()

                                        .getVectorLayers(IVectorLayer.SHAPE_TYPE_POLYGON);

                ObjectAndDescription[] oad = new ObjectAndDescription[layers.length];

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

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

                return oad;

        }

        /**

         * Gets the selected vector layer in the JComboBox

         * @return

         */

        private IVectorLayer getSelectedVectorLayer() {

                if(layersCombo.getSelectedItem() != null)

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

                return null;

        }

        /**

         * Gets the selected vector layer in the JComboBox

         * @return

         */

        private IVectorLayer getSelectedVectorLayer2() {

                if(layersJoinCombo.getSelectedItem() != null)

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

                return null;

        }

        /**

         * Gets the field list of the selected layer

         * @return

         */

        public String[] getFieldList() {

                IVectorLayer layer = getSelectedVectorLayer2();

                String[] data = new String[layer.getFieldCount()];

                for (int i = 0; i < layer.getFieldCount(); i++) 

                        data[i] = layer.getFieldName(i);

                return data;

        }

        /**

         * Formats the content of the table

         * @return

         */

        private String getValues() {

            String str = "";

            try {

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

                                str = str + (String)getRadioButtonTable().getModel().getValueAt(i, 4) + ",";

                                for (int j = 0; j < getRadioButtonTable().getModel().getColumnCount() - 1; j++)

                                        if(((Boolean)getRadioButtonTable().getModel().getValueAt(i, j)).booleanValue())

                                                str = str + SpatialJoinAlgorithm.Summary[j] + ",";

                                str = str.substring(0, str.length() - 1) + ";";

                        }

                } catch (NotInitializeException e) {

                        Sextante.addErrorToLog(e);

                }

            return str.substring(0, str.length() - 1);

    }

}