Application: gvSIG desktop

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

*

* Copyright (C) 2004 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.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

package es.gva.cit.gazetteer.ui;

import es.gva.cit.catalogClient.metadataXML.XMLNode;

import es.gva.cit.gazetteer.GazetteerClient;

import es.gva.cit.gazetteer.parsers.wfsg.WfsgDescribeFeatureTypeParser;

import es.gva.cit.gazetteer.querys.Feature;

import es.gva.cit.gazetteer.querys.ThesaurusName;

import es.gva.cit.gazetteer.querys.Query;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BoxLayout;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.event.TreeSelectionEvent;

import javax.swing.event.TreeSelectionListener;

/**

 * @author Jorge Piera Llodra (piera_jor@gva.es)

 */

public class SearchDialogPanel extends JPanel implements ActionListener,TreeSelectionListener {

//  It is needed to close the frame

    private JFrame parent;

    //Panels

    protected JPanel ppalPanel = null;

    protected SearchPanel controlsPanel = null;

    protected JPanel buttonsPanel = null;

    //Buttons

    private JButton searchButton = null;

    private JButton closeButton = null;

    //Otros

    protected GazetteerClient client = null;

    protected XMLNode[] nodesRecords = null;

    protected ThesaurusName currentFeature = null;

    protected String attribute = null;

    /**

     * This method initializes

     *

     */

    public SearchDialogPanel(GazetteerClient client) {

        super();

        this.client = client;

        initialize();

    }

    /**

     * This method initializes this

     *

     * @return void

     */

    private void initialize() {

        ppalPanel = new JPanel();

        ppalPanel.setLocation(0, 0);

        ppalPanel.setLayout(new BoxLayout(ppalPanel, BoxLayout.Y_AXIS));

        ppalPanel.add(getControlsPanel(), null);

        ppalPanel.add(getButtonPanel(), null);

        add(ppalPanel);

        setDefaultButtonListeners();

    }

    public void setCatalogClient(GazetteerClient catCli) {

        this.client = catCli;

    }

    public JPanel getControlsPanel() {

        if (controlsPanel == null) {

            controlsPanel = new SearchPanel(client.getLnkIGazetteerDriver().getVectorFeatures());

            controlsPanel.setPreferredSize(new java.awt.Dimension(727, 455));

            controlsPanel.setLocation(0, 0);

            if (client.getProtocol().equals("IDEC"))

                controlsPanel.getJScrollThesauro().setEnabled(false);

        }

        return controlsPanel;

    }

    public JPanel getButtonPanel() {

        if (buttonsPanel == null) {

            buttonsPanel = new JPanel(new FlowLayout());

            buttonsPanel.add(getSearchButton());

            buttonsPanel.add(getCloseButton());

        }

        return buttonsPanel;

    }

    public JButton getSearchButton() {

        if (searchButton == null) {

            searchButton = new JButton("Buscar");

            searchButton.setSize(new Dimension(30, 20));

            searchButton.setActionCommand("Buscar");

        }

        return searchButton;

    }

    public JButton getCloseButton() {

        if (closeButton == null) {

            closeButton = new JButton("Cerrar");

            closeButton.setSize(new Dimension(30, 20));

            closeButton.setActionCommand("Cerrar");

        }

        return closeButton;

    }   

    public ThesaurusName getFeatureSelected(){

        //return (Feature) controlsPanel.getTipoList().getSelectedValue();

        return controlsPanel.getType();

    }

    public void setDefaultButtonListeners() {

        getSearchButton().addActionListener(this);

        getCloseButton().addActionListener(this);

        controlsPanel.getTipoList().addTreeSelectionListener(this);

    }

    /* (non-Javadoc)

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

     */

    public void actionPerformed(ActionEvent e) {

        //Buscar

        if (e.getActionCommand() == "Buscar") {

            searchButtonActionPerformed();

        } 

        if (e.getActionCommand() == "Cerrar") {

            closeButtonActionPerformed();

        }

    }

    protected void searchButtonActionPerformed(){

        if ((currentFeature == null) && (client.getProtocol().equals("WFS-G"))){

            JOptionPane.showMessageDialog(

                    this,

                    "El protocolo WFS-G no permite hacer b?squedas si no se " +

                    "elige un elemento del tesauro",

                    "WFS-G",

                    JOptionPane.ERROR_MESSAGE

                    );

        }else{

            doSearch();

            if ((nodesRecords != null) && (nodesRecords.length > 0)) {

                showResults();

            }

        }

    }

    protected void closeButtonActionPerformed(){

        parent.setVisible(false);

    }

    private Query doQuery() {

       return new Query(controlsPanel.getName(),

            controlsPanel.getConcordancia(),

            controlsPanel.getType(),

            getFieldAttribute(),

            controlsPanel.getNPaginas(),

            controlsPanel.getCoordenadas(),

            controlsPanel.getCoordenadasOpcion());

    }

    /**

     * it opens a window with a combo and returns a field attribute name

     * @return

     */

    private String getFieldAttribute(){

        if (!(client.getProtocol().equals("WFS-G")))

            return null;

        Object[] possibilities = new Object[currentFeature.getFields().length];

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

            possibilities[i] = currentFeature.getFields()[i].getName();

        String s = (String)JOptionPane.showInputDialog(

                            this,

                            "Elige un atributo para hacer la b?squeda",

                            "WFS-G",

                            JOptionPane.PLAIN_MESSAGE,

                            null,

                            possibilities,

                            currentFeature.getFields()[0].getName());

        if ((s != null) && (s.length() > 0)) {

            attribute = s;

            return s;

        }

        return null;

    }

    private void doSearch() {

        nodesRecords = client.getLnkIGazetteerDriver().getFeature(client.getUrl(),

                doQuery());

        if (nodesRecords == null) {

            JOptionPane.showMessageDialog(this,

                "Se ha producido un error al hacer el get records", "Error",

                JOptionPane.ERROR_MESSAGE);

        } 

    }

    private void showResults() {

        Feature[] features = client.getLnkIGazetteerDriver().parseFeatures(nodesRecords[0],currentFeature,attribute);

        if (features.length == 0){

            JOptionPane.showMessageDialog(this,

                    "La b?squeda no ha producido ning?n resultado", "B?squeda de Gazetteer",

                    JOptionPane.INFORMATION_MESSAGE);

        }else{

            ShowResultsActionPerformed(features);

        }

    }

    private void ShowResultsActionPerformed(Feature[] features){

        new ShowResultsDialog(client,features,controlsPanel.getNPaginas());

    }

    /**

     * It loads the fields for the feature

     * @param feature

     */

    private void loadCurrentFeature(){

        XMLNode[] fields = client.getLnkIGazetteerDriver().describeFeatureType(client.getUrl(),

               currentFeature.getName());

        if (client.getProtocol().equals("WFS-G"))        

            new WfsgDescribeFeatureTypeParser().parse(fields[0],currentFeature);

    }

    /* (non-Javadoc)

     * @see javax.swing.event.TreeSelectionListener#valueChanged(javax.swing.event.TreeSelectionEvent)

     */

    public void valueChanged(TreeSelectionEvent e) {

        if (currentFeature == null){

            currentFeature = getFeatureSelected();

            loadCurrentFeature();

       }else{

            ThesaurusName feature = getFeatureSelected();

            if (!(currentFeature.equals(feature))){

               if (feature != null){

                   currentFeature = feature;

                   loadCurrentFeature();

               }

            }

        }

    }

/**

 * @param parent The parent to set.

 */

public void setParent(JFrame parent) {

    this.parent = parent;

}

}