periodeditui.java

Rapla是一个灵活的多用户资源管理系统。它提供的一些功能有：日历GUI

/*--------------------------------------------------------------------------*
 | Copyright (C) 2006 Christopher Kohlhaas                                  |
 |                                                                          |
 | 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. A copy of the license has been included with   |
 | these distribution in the COPYING file, if not go to www.fsf.org         |
 |                                                                          |
 | As a special exception, you are granted the permissions to link this     |
 | program with every library, which license fulfills the Open Source       |
 | Definition as published by the Open Source Initiative (OSI).             |
 *--------------------------------------------------------------------------*/
package org.rapla.gui.internal.edit;

import java.awt.BorderLayout;
import java.util.Date;

import javax.swing.Box;
import javax.swing.JComponent;
import javax.swing.JPanel;

import org.rapla.components.calendar.DateChangeEvent;
import org.rapla.components.calendar.DateChangeListener;
import org.rapla.components.calendar.RaplaCalendar;
import org.rapla.components.util.DateTools;
import org.rapla.entities.domain.Period;
import org.rapla.framework.RaplaContext;
import org.rapla.framework.RaplaException;

public class PeriodEditUI extends AbstractEditUI
    implements
     DateChangeListener
{

    RaplaCalendar startDate;
    RaplaCalendar endDate;
    private boolean listenerEnabled = true;

    JPanel wrapper = new JPanel();
    /**
     * @param sm
     * @throws RaplaException
     */
    public PeriodEditUI(RaplaContext sm) throws RaplaException {
        super(sm);
        wrapper.setLayout(new BorderLayout());
        wrapper.add(editPanel,BorderLayout.CENTER);
        wrapper.add(Box.createVerticalStrut(150),BorderLayout.SOUTH);
        DateField startDateField = new DateField(sm,"start_date") {
                public void mapTo(Object o) {
                    Period period = (Period)o;
                    period.setStart((Date)getValue());
                }
                public void mapFrom(Object o) {
                    Period period = (Period)o;
                    setValue(period.getStart());
                }
            };
        DateField endDateField =  new DateField(sm,"end_date") {
                public void mapTo(Object o) {
                    Period period = (Period)o;
                    period.setEnd(DateTools.addDay((Date)getValue()));
                }
                public void mapFrom(Object o) {
                    Period period = (Period) o;
                    setValue(DateTools.subDay(period.getEnd()));
                }
            };
        EditField[] fields = new EditField[] {
            new TextField(sm,"name")
            ,startDateField
            ,endDateField
        };
        setFields(fields);
        startDate = startDateField.getCalendar();
        startDate.setTimeZone(DateTools.getTimeZone());
        endDate = endDateField.getCalendar();
        endDate.setTimeZone(DateTools.getTimeZone());
        startDate.addDateChangeListener(this);
        endDate.addDateChangeListener(this);
    }

    public void dateChanged(DateChangeEvent evt) {
        if (!listenerEnabled)
            return;
        listenerEnabled = false;
        if (endDate.getDate().getTime() <= startDate.getDate().getTime()) {
            if (evt.getSource() == startDate) {
                endDate.setDate(DateTools.addDay(DateTools.cutDate(startDate.getDate())));
                getLogger().info("enddate adjusted");
            }
            if (evt.getSource() == endDate) {
                startDate.setDate(DateTools.subDay(DateTools.cutDate(endDate.getDate())));
                getLogger().info("startdate adjusted");
            }
        }
        listenerEnabled = true;

    }

    public JComponent getComponent() {
        return wrapper;
    }

    public void mapToObject() throws RaplaException {
        super.mapToObject( );
    	Period period = (Period) o;
        if (getName(o).length() == 0)
            throw new RaplaException(getString("error.no_name"));
        if ((period.getEnd().getTime() - period.getStart().getTime()) < DateTools.MILLISECONDS_PER_WEEK)
            showWarning(getString("warning.period_shorter_than_week"),getComponent());
    }
}