<zk>
	<window border="0"
		apply="test.CalendarMainCtrl">
		<button id="setModel" style="cursor:pointer"
			label="set model" />
		<calendars id="calendars" firstDayOfWeek="Sunday" mold="default"
			height="540px">
		</calendars>
	</window>
</zk>

package test;

import java.util.Calendar;
import java.util.Date;

import org.zkoss.calendar.Calendars;
import org.zkoss.calendar.api.CalendarEvent;
import org.zkoss.calendar.impl.SimpleCalendarModel;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.util.GenericForwardComposer;

public class CalendarMainCtrl extends GenericForwardComposer<Component> {
    private static final long serialVersionUID = 6970953044952813761L;

    private Calendars calendars;


    @Override
    public void doAfterCompose(Component comp) throws Exception {
        super.doAfterCompose(comp);
        setCalendarsModel();
    }

    public void onClick$setModel() {
    	setCalendarsModel();
    }

    private void setCalendarsModel() {
        SimpleCalendarModel calendarModel = (SimpleCalendarModel) calendars.getModel();
        if (calendarModel == null) {
            calendarModel = new SimpleCalendarModel();
        } else {
        	calendarModel.clear();
        }
        calendarModel.add(new CalendarEvent() {
            
            @Override
            public boolean isLocked() {
                return true;
            }
            
            @Override
            public String getZclass() {
                return "z-calevent";
            }
            
            @Override
            public String getTitle() {
                return "name";
            }
            
            @Override
            public String getHeaderColor() {
                return "#446688";
            }
            
            @Override
            public Date getEndDate() {
                Date date = new Date();
                Calendar calendar = Calendar.getInstance();
                calendar.setTime(date);
                calendar.add(Calendar.DATE, 5);
                calendar.set(Calendar.HOUR_OF_DAY, 0);
                calendar.set(Calendar.MINUTE, 0);
                calendar.set(Calendar.SECOND, 0);
                calendar.set(Calendar.MILLISECOND, 0);
                return calendar.getTime();
            }
            
            @Override
            public String getContentColor() {
                return "#212312";
            }
            
            @Override
            public String getContent() {
                return "test";
            }
            
            @Override
            public Date getBeginDate() {
                Date date = new Date();
                Calendar calendar = Calendar.getInstance();
                calendar.setTime(date);
                calendar.add(Calendar.DATE, 4);
                calendar.set(Calendar.HOUR_OF_DAY, 0);
                calendar.set(Calendar.MINUTE, 0);
                calendar.set(Calendar.SECOND, 0);
                calendar.set(Calendar.MILLISECOND, 0);
                return calendar.getTime();
            }
        });
        calendars.setModel(calendarModel);
    }

}