Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3 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., 51

 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us at info AT

 * gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.featureform.swing.impl.dynformfield;

import java.awt.Cursor;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.net.URL;

import java.util.Formatter;

import javax.swing.BorderFactory;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JPanel;

import javax.swing.JTextField;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.featureform.swing.JFeaturesForm;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FacadeOfAFeature;

import org.gvsig.fmap.dal.feature.FeatureQuery;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.dal.swing.DALSwingLocator;

import org.gvsig.fmap.dal.swing.DataSwingManager;

import org.gvsig.tools.dynform.JDynFormField;

import org.gvsig.tools.dynform.spi.dynformfield.AbstractJDynFormField;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.service.spi.ServiceManager;

import org.gvsig.tools.swing.api.windowmanager.WindowManager;

public class JDynFormFieldFeatureLink extends AbstractJDynFormField implements JDynFormField {

    private static final String DAL_code = "DAL.code";

    private static final String DAL_foreingTable = "DAL.foreingTable";

    private static final String DAL_foreingCode = "DAL.foreingCode";

    private static final String DAL_foreingDescriptionMask = "DAL.foreingDescriptionMask";

    private static final String DAL_foreingDescriptionFields = "DAL.foreingDescriptionFields";

    private DynObject assignedValue = null;

    private DynObject value = null;

//    private JTextField txtCode = null;

    private JTextField txtDescription = null;

    private JButton btnLink = null;

    private JButton btnUnlink = null;

    private JButton btnEdit = null;

    private String codeFieldName = null;

    private String foreingTableName;

    private String foreingCodeName;

    private String foreingDescriptionMask = null;

    private String foreingDescriptionFieldNames[] = null;

    /**

     *

     * @param parameters

     * @param serviceManager

     */

    public JDynFormFieldFeatureLink(DynObject parameters,

            ServiceManager serviceManager) {

        super(parameters, serviceManager);

        if (this.getParameterValue() != null) {

            this.assignedValue = (DynObject) this.getParameterValue();

        }

    }

    @Override

    public Object getAssignedValue() {

        return this.assignedValue;

    }

    @Override

    public void initComponent() {

        this.foreingDescriptionFieldNames = null;

        this.codeFieldName = getTagValueAsString(DAL_code, null);

        this.foreingTableName = getTagValueAsString(DAL_foreingTable, null);

        this.foreingCodeName = getTagValueAsString(DAL_foreingCode, null);

        this.foreingDescriptionMask = getTagValueAsString(DAL_foreingDescriptionMask, null);

        String fieldNames = getTagValueAsString(DAL_foreingDescriptionFields, null);

        if (!StringUtils.isEmpty(fieldNames)) {

            this.foreingDescriptionFieldNames = fieldNames.split(",");

        }

        if (StringUtils.isEmpty(this.foreingDescriptionMask)

                && this.foreingDescriptionFieldNames != null

                && this.foreingDescriptionFieldNames.length == 1) {

            this.foreingDescriptionMask = "%s";

        }

//        this.txtCode = new JTextField();

        this.txtDescription = new JTextField();

        this.btnLink = createButton("Select item to link", "link.png");

        this.btnUnlink = createButton("Remove link", "unlink.png");

        this.btnEdit = createButton("View linked item", "edit.png");

        this.btnLink.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent ae) {

                doLink();

            }

        });

        this.btnUnlink.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent ae) {

                doUnlink();

            }

        });

        this.btnEdit.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent ae) {

                doEdit();

            }

        });

//        this.txtCode.setText("          ");

//        this.txtDescforeingCodeNameription.setText("                    ");

//        this.txtCode.setEditable(false);

        this.txtDescription.setEditable(false);

        if (StringUtils.isEmpty(codeFieldName) || StringUtils.isEmpty(foreingDescriptionMask)

                || StringUtils.isEmpty(foreingTableName) || StringUtils.isEmpty(foreingCodeName)

                || this.foreingDescriptionFieldNames == null) {

            this.btnEdit.setEnabled(false);

            this.btnLink.setEnabled(false);

            this.btnUnlink.setEnabled(false);

        }

        this.contents = new JPanel();

        this.contents.setLayout(new GridBagLayout());

        GridBagConstraints c = new GridBagConstraints();

//        c.fill = GridBagConstraints.NONE;

//        c.ipadx = 4;

//        c.ipady = 1;

//        c.gridx = 0;

//        c.gridy = 0;

//        c.weightx = 0;

//        this.contents.add(this.txtCode, c);

        c.fill = GridBagConstraints.HORIZONTAL;

        c.ipadx = 4;

        c.ipady = 1;

        c.gridx = 1;

        c.gridy = 0;

        c.weightx = 1;

        this.contents.add(this.txtDescription, c);

        c.fill = GridBagConstraints.NONE;

        c.ipadx = 4;

        c.ipady = 1;

        c.gridx = 2;

        c.gridy = 0;

        c.weightx = 0;

        this.contents.add(this.btnLink, c);

        c.fill = GridBagConstraints.NONE;

        c.ipadx = 4;

        c.ipady = 1;

        c.gridx = 3;

        c.gridy = 0;

        c.weightx = 0;

        this.contents.add(this.btnUnlink, c);

        c.fill = GridBagConstraints.NONE;

        c.ipadx = 4;

        c.ipady = 1;

        c.gridx = 4;

        c.gridy = 0;

        c.weightx = 0;

        this.contents.add(this.btnEdit, c);

        this.setValue(this.assignedValue);

    }

    private JButton createButton(final String tip, final String image) {

        URL url = this.getClass().getClassLoader().getResource("org/gvsig/featureform/swing/impl/" + image);

        Icon icon = new ImageIcon(url);

        JButton button = new JButton(icon);

        button.setBorder(BorderFactory.createEmptyBorder());

        button.setBorderPainted(false);

        button.setFocusPainted(false);

        button.setContentAreaFilled(false);

        button.setToolTipText(tip);

        button.setCursor(new Cursor(Cursor.HAND_CURSOR));

        return button;

    }

    private void doLink() {

    }

    private void doUnlink() {

        this.clear();

    }

    private void doEdit() {

        try {

            DataManager dalmanager = DALLocator.getDataManager();

            DataSwingManager daluimanager = DALSwingLocator.getSwingManager();

            Feature feature = ((FacadeOfAFeature)(this.value)).getFeature();

            FeatureStore store = feature.getStore();

            FeatureQuery query = store.createFeatureQuery();

            query.addFilter(dalmanager.createExpresion(foreingCodeName + " = " + feature.getString(foreingCodeName)));

            JFeaturesForm form = daluimanager.createJFeaturesForm(store);

            form.setQuery(query);

            form.showForm(WindowManager.MODE.WINDOW);

        } catch (Exception ex) {

            logger.warn("Can't show linked form",ex);

        }

    }

    private String getDescription() {

        if (StringUtils.isEmpty(foreingDescriptionMask) || this.foreingDescriptionFieldNames == null) {

            return "";

        }

        Object[] values = new Object[this.foreingDescriptionFieldNames.length];

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

            values[i] = this.value.getDynValue(this.foreingDescriptionFieldNames[i]);

        }

        Formatter f = new Formatter();

        try {

            String description = f.format(this.foreingDescriptionMask, values).toString();

            return description;

        } catch (Exception ex) {

            // TODO: log error

            return "";

        }

    }

    @Override

    public void setReadOnly(boolean readonly) {

        boolean enabled = !readonly;

//        this.txtCode.setEnabled(enabled);

        if( this.txtDescription == null ) {

            return;

        }

        this.txtDescription.setEnabled(enabled);

        this.btnEdit.setEnabled(enabled);

        this.btnLink.setEnabled(enabled);

        this.btnUnlink.setEnabled(enabled);

    }

    @Override

    public void setValue(Object value) {

        if (value == null) {

            this.clear();

            return;

        }

        this.value = (DynObject) value;

//        this.txtCode.setText("");

        this.txtDescription.setText("");

        if (StringUtils.isEmpty(foreingCodeName) || StringUtils.isEmpty(foreingDescriptionMask)

                || this.foreingDescriptionFieldNames == null) {

        }

//        Object x = this.value.getDynValue(foreingCodeName);

//        if (x != null) {

//            this.txtCode.setText(x.toString());

//        }

        String description = this.getDescription();

        if (description != null) {

            this.txtDescription.setText(description);

        }

    }

    @Override

    public Object getValue() {

        return this.value;

    }

    @Override

    public void fetch(DynObject container) {

        if (StringUtils.isEmpty(this.codeFieldName)) {

            return;

        }

        DynObject value = (DynObject) this.getValue();

        if (value == null) {

            container.setDynValue(this.codeFieldName, null);

        } else {

            if (StringUtils.isEmpty(this.foreingCodeName)) {

                return;

            }

            container.setDynValue(this.codeFieldName, value.getDynValue(this.foreingCodeName));

        }

    }

    @Override

    public boolean hasValidValue() {

        return true;

    }

    @Override

    public void clear() {

        this.value = null;

//        this.txtCode.setText("");

        this.txtDescription.setText("");

    }

}