DateManager.java

/*
 * File    : DateManager.java
 * Created : 14-feb-2003 16:38
 * By      : fbusquets
 *
 * JClic - Authoring and playing system for educational activities
 *
 * Copyright (C) 2000 - 2005 Francesc Busquets & Departament
 * d'Educacio de la Generalitat de Catalunya
 *
 * 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 (see the LICENSE file).
 */

package edu.xtec.jclic.report.rp;

import edu.xtec.jclic.report.ReportUtils;
import java.util.Date;
import java.util.GregorianCalendar;

/**
 *
 * @author Francesc Busquets (fbusquets@xtec.cat)
 * @version 13.08.09
 */
public class DateManager {
    
    public static final String FROM="from", TO="to";
    //public static final String FROM_FORM="fromForm", TO_FORM="toForm";
    
    protected Date dFrom, dTo, firstDate, today;
    private GregorianCalendar calendar;
    
    protected Basic rp;
    
    /** Creates a new instance of DateManager */
    public DateManager(Basic rp) {
        this.rp=rp;
    }
    
    public boolean init() throws Exception{
        
        firstDate=Basic.bridge.getMinSessionDate();
        today=new Date();
        if(firstDate==null || firstDate.compareTo(today)>0)
            firstDate=today;
        dFrom=rp.getDateParam(FROM, firstDate, false);
        dTo=rp.getDateParam(TO, today, true);
        if(dFrom.compareTo(dTo)>0)
            dFrom=dTo;
        
        System.out.println("From: "+dFrom+" To: "+dTo);
        return true;
    }
    
    public GregorianCalendar getCalendar(){
        if(calendar==null)
            calendar=new GregorianCalendar();
        return calendar;
    }
    
    public void writeHiddenFields(StringBuilder sb) throws Exception{
        sb.append("<input type=\"hidden\" name=\"").append(FROM).append("\" value=\"").append(ReportUtils.dateToStr(dFrom)).append("\">\n");
        sb.append("<input type=\"hidden\" name=\"").append(TO).append("\" value=\"").append(ReportUtils.dateToStr(dTo)).append("\">\n");        
    }
    
    public void writeDateScript(StringBuilder sb){
        sb.append("<script language=\"JavaScript\" type=\"text/javascript\">\n");
        sb.append("<!--\n");
        sb.append(" function updateDateFrom(){\n");
        sb.append("     mainForm.from.value=\n");
        sb.append("       \"\"+mainForm.yearFrom.options[mainForm.yearFrom.selectedIndex].value+\n");
        sb.append("       \"-\"+mainForm.monthFrom.options[mainForm.monthFrom.selectedIndex].value+\n");
        sb.append("       \"-\"+mainForm.dayFrom.options[mainForm.dayFrom.selectedIndex].value;\n");
        sb.append(" };\n");
        sb.append(" function updateDateTo(){\n");
        sb.append("     mainForm.to.value=\n");
        sb.append("       \"\"+mainForm.yearTo.options[mainForm.yearTo.selectedIndex].value+\n");
        sb.append("       \"-\"+mainForm.monthTo.options[mainForm.monthTo.selectedIndex].value+\n");
        sb.append("       \"-\"+mainForm.dayTo.options[mainForm.dayTo.selectedIndex].value;\n");
        sb.append(" };\n");
        sb.append("//-->\n");
        sb.append("</script>\n");
    }
    
    protected void zonaData(StringBuilder sb, String button){
        liniaData(sb, true);
        liniaData(sb, false);
        if(button!=null){
            sb.append("<p>").append(button).append("</p>");
        }
    }
    
    
    protected void liniaData(StringBuilder sb, boolean bFrom){
        String[] n=Basic.getFormattedNumbers();
        String msgKey = bFrom ? "report_from" : "report_to";
        //String formName = bFrom ? FROM_FORM : TO_FORM;
        //String type = bFrom ? FROM : TO;
        String type = bFrom ? "From" : "To";
        
        String ctrlName = Basic.MAIN_FORM+"."+type;
        //String actionStr=" onChange=updateDate"+formName+"()";
        String actionStr="\" onChange=updateDate"+type+"()";
        GregorianCalendar c=getCalendar();
        c.setTime(firstDate);
        int firstYear=c.get(GregorianCalendar.YEAR);
        c.setTime(today);
        int currentYear=c.get(GregorianCalendar.YEAR);
        c.setTime(bFrom ? dFrom : dTo);
        
        sb.append("<p><strong>").append(Basic.toNbsp(rp.getMsg(msgKey))).append("</strong> ");
        sb.append("<select name=\"day").append(type).append("\"  onChange=\"updateDate").append(type).append("()\">\n");
        int x=c.get(GregorianCalendar.DAY_OF_MONTH);
        for(int i=1; i<=31; i++){
            sb.append("<option");
            if (i==x)
                sb.append(" selected");
            sb.append(" value=\"").append(n[i]).append("\">").append(n[i]).append("</option>\n");
        }
        sb.append("</select> <select name=\"month").append(type).append("\"  onChange=\"updateDate").append(type).append("()\">\n");
        x=c.get(GregorianCalendar.MONTH);
        for(int i=0; i<12; i++){
            sb.append("<option");
            if(i==x)
                sb.append(" selected");
            sb.append(" value=\"").append(n[i+1]).append("\">").append(Basic.filter(rp.months[i])).append("</option>\n");
        }
        sb.append("</select> <select name=\"year").append(type).append("\"  onChange=\"updateDate").append(type).append("()\">\n");
        x=c.get(GregorianCalendar.YEAR);
        for (int i=firstYear; i<=currentYear; i++){
            sb.append("<option");
            if(i==x)
                sb.append(" selected");
            sb.append(" value=\"").append(i).append("\">").append(i).append("</option>\n");
        }
        sb.append("</select></p>\n");
    }
}