Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * 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.tools.dynform.services.dynformfield.Date;

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.net.URL;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;

import java.util.Objects;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JComponent;

import javax.swing.JPanel;

import javax.swing.JPopupMenu;

import javax.swing.JSpinner;

import javax.swing.event.ChangeEvent;

import org.freixas.jcalendar.DateEvent;

import org.freixas.jcalendar.DateListener;

import org.freixas.jcalendar.JCalendar;

import org.gvsig.tools.dynform.DynFormFieldDefinition;

import org.gvsig.tools.dynform.JDynFormField;

import org.gvsig.tools.dynform.spi.DynFormSPIManager;

import org.gvsig.tools.dynform.spi.DynFormSPIManager.ComponentsFactory;

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

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

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

import org.gvsig.tools.dynobject.DynObjectValueItem;

import org.gvsig.tools.dynobject.exception.DynFieldValidateException;

/**

 * @author gvSIG team

 *

 */

public class JDynFormFieldDate extends AbstractJDynFormField implements JDynFormField, FocusListener {

    protected Object assignedValue = null;

    private JCalendar jcalendar = null;

    private JSpinner timeSpinner = null;

    private JButton button = null;

    private static final String DATE_PANEL_NAME = "Date panel";

    public JDynFormFieldDate(

            DynFormSPIManager serviceManager,

            ComponentsFactory componentsFactory,

            JDynFormFieldFactory factory,

            DynFormFieldDefinition definition,

            Object value

    ) {

        super(serviceManager, componentsFactory, factory, definition, value);

        this.assignedValue = value;

    }

    @Override

    public void setReadOnly(boolean readonly) {

        JComponent theJlabel = this.getJLabel();

        if( this.jlabel != null ) {

            this.jlabel.setEnabled(!readonly);

        } else if( theJlabel !=null ) {

            theJlabel.setEnabled(!readonly);

        }

        this.readOnly = readonly;

        if (this.contents != null) {

            if (this.readOnly ) {

                this.timeSpinner.setEnabled(false);

                this.button.setEnabled(false);

            } else {

                this.timeSpinner.setEnabled(true);

                this.button.setEnabled(true);

            }

        }

    }

    public Object getAssignedValue() {

        return this.assignedValue;

    }

    protected JSpinner getJSpinner() {

        return (JSpinner) this.timeSpinner;

    }

    protected JButton getJButton() {

        return (JButton) this.button;

    }

    protected JCalendar getJCalendar() {

        if (this.jcalendar == null) {

            this.jcalendar = new JCalendar();

            this.jcalendar.addDateListener(new DateListener() {

                public void dateChanged(DateEvent arg0) {

                    getJSpinner().setValue(getJCalendar().getDate());

                }

            });

        }

        return (JCalendar) this.jcalendar;

    }

    public void initComponent() {

        DynObjectValueItem[] availableValues = this.getDefinition().getAvailableValues();

        if (availableValues == null) {

            this.contents = new JPanel();

            this.contents.setName(DATE_PANEL_NAME);

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

            timeSpinner = this.getComponentsFactory().getJSpinner(this.getDefinition(), null);

            CustomSpinnerDateModel model = new CustomSpinnerDateModel(true);

            timeSpinner.setModel(model);

            DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault());

            String pattern = "dd-MM-yyyy";

            try {

                SimpleDateFormat sdf = (SimpleDateFormat) dateFormat;

                pattern = sdf.toPattern();

            } catch (ClassCastException e) {

                LOGGER.warn("Can't determinate date format pattern, using default pattern:" + pattern);

            }

            NullDateEditor timeEditor = new NullDateEditor(timeSpinner, pattern);

            this.timeSpinner.setEditor(timeEditor);

            this.timeSpinner.addFocusListener(new FocusListener() {

                @Override

                public void focusGained(FocusEvent e) {

                    fireFieldEnterEvent();

                }

                @Override

                public void focusLost(FocusEvent e) {

                    fireFieldExitEvent();

                }

            });

//            timeEditor.dismiss(timeSpinner);

            button = this.getComponentsFactory().getJButton(this.getDefinition(), null);

            if( button.getIcon()==null ) {

                URL imageResource = this.getClass().getClassLoader().getResource("org/gvsig/tools/swing/picker/picker-date.png");

                if (imageResource != null) {

                    button.setIcon(new ImageIcon(imageResource));

                }

            }

            if( button.getText().trim().equals("...") ) {

                button.setText("");

            }

//            button.setText("\u2026");

            button.addActionListener(new ActionListener() {

                public void actionPerformed(ActionEvent event) {

                    fireFieldEnterEvent();

                    JPopupMenu menu = new JPopupMenu();

                    menu.add(getJCalendar());

                    Date value = (Date) getJSpinner().getValue();

                    if (value != null) {

                        getJCalendar().setDate(value);

                    }

                    JComponent thisComp = (JComponent) event.getSource();

                    menu.show(thisComp, 0, thisComp.getY() + 22);

                    setValue(getJCalendar().getDate());

                }

            });

            if (this.getDefinition().isReadOnly()) {

                this.getJSpinner().setEnabled(false);

                this.getJButton().setEnabled(false);

            }

            this.getJSpinner().addFocusListener(this);

            if( !this.getComponentsFactory().containsJSpinner(this.getDefinition(), null) ) {

                this.contents.add(timeSpinner, BorderLayout.CENTER);

                this.contents.add(button, BorderLayout.LINE_END);

            }

        }

        this.setValue(this.assignedValue);

    }

    public void setValue(Object value) {

        if (value == null) {

            value = this.getDefinition().getDefaultValue();

            if (value == null) {

                value = null;

            }

        } else {

            try {

                this.getDefinition().validate(value);

                this.problemIndicator().clear();

            } catch (DynFieldValidateException e) {

                this.problemIndicator().set(e.getLocalizedMessage());

            }

        }

        if (this.contents instanceof JPanel && this.contents.getName().equalsIgnoreCase(DATE_PANEL_NAME)) {

            try {

                this.getJSpinner().setValue(value);

            } catch (Exception ex) {

            }

        }

        this.assignedValue = value;

    }

    /*

         * Métodos específicos de cada tipo de datos

     */

    public Object getValue() {

        Object value = null;

        if (this.contents instanceof JPanel && this.contents.getName().equalsIgnoreCase(DATE_PANEL_NAME)) {

            value = getJSpinner().getValue();

        }

        try {

            this.getDefinition().validate(value);

            this.problemIndicator().clear();

        } catch (DynFieldValidateException e) {

            throw new IllegalFieldValue(this, e.getLocalizedMessage());

        }

        return value;

    }

    @SuppressWarnings("unused")

    public boolean hasValidValue() {

        try {

            Object value = this.getValue();

        } catch (Exception e) {

            return false;

        }

        return true;

    }

    public void focusGained(FocusEvent arg0) {

        fireFieldEnterEvent();

        this.problemIndicator().restore();

    }

    public void focusLost(FocusEvent arg0) {

        if (this.hasValidValue()) {

            this.problemIndicator().clear();

        } else {

            try {

                Object value = this.getValue();

            } catch (Exception e) {

                this.problemIndicator().set(e.getLocalizedMessage());

            }

        }

        fireFieldExitEvent();

    }

    public void clear() {

        setValue(null);

//            Object value = this.getDefinition().getDefaultValue();

//            if( value != null ) {

//                if (!(value instanceof Date)){

//                    try {

//                        value = DateFormat.getInstance().parse(value.toString());

//                    } catch (ParseException e) {

//                        this.problemIndicator().set(e.getLocalizedMessage());

//                    }

//                }

//            } else {

//                value = "";

//            }

//            try {

//                this.timeSpinner.setValue(value);

//            } catch (RuntimeException e) {

//                this.timeSpinner.setValue(getJCalendar().getDate());

//            }

    }

    private class NullDateEditor extends JSpinner.DateEditor {

        /**

         *

         */

        private static final long serialVersionUID = -522934985228645970L;

        /**

         * @param jspinner

         * @param pattern

         *

         */

        public NullDateEditor(JSpinner jspinner, String pattern) {

            super(jspinner, pattern);

        }

        public NullDateEditor(JSpinner jspinner) {

            super(jspinner);

        }

        public void stateChanged(ChangeEvent e) {

            Object value = getSpinner().getValue();

            String text = "";

            if (value != null) {

                text = getFormat().format((Date) value);

            }

            getTextField().setText(text);

        }

    }

    @Override

    public boolean isModified() {

        Date assigned = (Date) getAssignedValue();

        if (this.contents instanceof JPanel && this.contents.getName().equalsIgnoreCase(DATE_PANEL_NAME)) {

            Date value = (Date) getJSpinner().getValue();

            return  !Objects.equals(value, assigned);

        }

        return false;

    }

}