datebookdb.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

		effEv.setStart( QTime(0,0,0) );
		effEv.setEnd( QTime(23,59,59) );
	    } else {
		/* we only occur by days, not hours/minutes/seconds.  Hence
		   the actual end and start times will be the same for
		   every repeated event.  For multi day events this is
		   fixed up later if on wronge day span */
		effEv.setStart( (*it).start().time() );
		effEv.setEnd( (*it).end().time() );
	    }
	    if ( duration != 0 ) {
		// multi-day repeating events
		QDate sub_it = QMAX( repeat.date(), from );
		QDate startDate = repeat.date();
		QDate endDate = startDate.addDays( duration );

		while ( sub_it <= endDate && sub_it  <= to ) {
		    EffectiveEvent tmpEffEv = effEv;
		    Event tmpEv = *it;
		    tmpEffEv.setEvent( tmpEv );

		    if ( sub_it != startDate )
			tmpEffEv.setStart( QTime(0,0,0) );
		    if ( sub_it != endDate )
			tmpEffEv.setEnd( QTime(23,59,59) );
		    tmpEffEv.setDate( sub_it );
		    tmpEffEv.setEffectiveDates( startDate, endDate );
		    tmpList.append( tmpEffEv );
		    sub_it = sub_it.addDays( 1 );
		}
		itDate = endDate;
	    } else {
		Event tmpEv = *it;
		effEv.setEvent( tmpEv );
		tmpList.append( effEv );
		itDate = repeat.date().addDays( 1 );
	    }
	}
    }

    qHeapSort( tmpList );
    return tmpList;
}

/*! \a dt */
QValueList<EffectiveEvent> DateBookDB::getEffectiveEvents( const QDateTime &dt)
{
    QValueList<EffectiveEvent> day = getEffectiveEvents(dt.date(), dt.date());
    QValueListConstIterator<EffectiveEvent> it;
    QValueList<EffectiveEvent> tmpList;
    QDateTime dtTmp;

    for (it = day.begin(); it != day.end(); ++it ) {
        dtTmp = QDateTime( (*it).date(), (*it).start() );
	// at the moment we don't have second granularity, be nice about that..
        if ( QABS(dt.secsTo(dtTmp)) < 60 )
            tmpList.append( *it );
    }
    return tmpList;
}


/*! \a ev \a doalarm */
void DateBookDB::addEvent( const Event &ev, bool doalarm )
{
    // write to the journal...
    saveJournalEntry( ev, ACTION_ADD, -1, false );
    addJFEvent( ev, doalarm );
    d->clean = false;
}

/*! \a ev \a doalarm */
void DateBookDB::addJFEvent( const Event &ev, bool doalarm )
{
    if ( doalarm && ev.hasAlarm() )
	addEventAlarm( ev );
    if ( ev.hasRepeat() )
	repeatEvents.append( ev );
    else
	eventList.append( ev );
}

/*! \a old \a editedEv */
void DateBookDB::editEvent( const Event &old, Event &editedEv )
{
    int oldIndex=0;
    bool oldHadRepeat = old.hasRepeat();
    Event orig;

    // write to the journal...
    if ( oldHadRepeat ) {
	if ( origRepeat( old, orig ) ) // should work always...
	    oldIndex = repeatEvents.findIndex( orig );
    } else
	oldIndex = eventList.findIndex( old );
    saveJournalEntry( editedEv, ACTION_REPLACE, oldIndex, oldHadRepeat );

    if ( old.hasAlarm() )
	delEventAlarm( old );
    if ( oldHadRepeat ) {
	if ( editedEv.hasRepeat() ) {
	    // assumption, when someone edits a repeating event, they
	    // want to change them all, maybe not perfect, but it works
	    // for the moment...
	    repeatEvents.remove( orig );
	} else
	    removeRepeat( old );
    } else {
	QValueList<Event>::Iterator it = eventList.find( old );
	if ( it != eventList.end() )
	    eventList.remove( it );
    }
    if ( editedEv.hasAlarm() )
	addEventAlarm( editedEv );
    if ( editedEv.hasRepeat() )
	repeatEvents.append( editedEv );
    else
	eventList.append( editedEv );
    d->clean = false;
}

/*! \a ev */
void DateBookDB::removeEvent( const Event &ev )
{
    // write to the journal...
    saveJournalEntry( ev, ACTION_REMOVE, -1, false );
    removeJFEvent( ev );
    d->clean = false;
}

/*! \a ev */
void DateBookDB::removeJFEvent( const Event&ev )
{
    if ( ev.hasAlarm() )
	delEventAlarm( ev );
    if ( ev.hasRepeat() ) {
	removeRepeat( ev );
    } else {
	QValueList<Event>::Iterator it = eventList.find( ev );
	if ( it != eventList.end() )
	    eventList.remove( it );
    }
}

// also handles journaling...
/*! \a strFile */
void DateBookDB::loadFile( const QString &strFile )
{

    QFile f( strFile );
    if ( !f.open( IO_ReadOnly ) )
	return;

    enum Attribute {
	FDescription = 0,
	FLocation,
	FCategories,
	FUid,
	FType,
	FAlarm,
	FSound,
	FRType,
	FRWeekdays,
	FRPosition,
	FRFreq,
	FRHasEndDate,
	FREndDate,
	FRStart,
	FREnd,
	FNote,
	FCreated,
	FAction,
	FActionKey,
	FJournalOrigHadRepeat
    };

    QAsciiDict<int> dict( 97 );
    dict.setAutoDelete( TRUE );
    dict.insert( "description", new int(FDescription) ); // No tr
    dict.insert( "location", new int(FLocation) ); // No tr
    dict.insert( "categories", new int(FCategories) ); // No tr
    dict.insert( "uid", new int(FUid) );
    dict.insert( "type", new int(FType) ); // No tr
    dict.insert( "alarm", new int(FAlarm) ); // No tr
    dict.insert( "sound", new int(FSound) ); // No tr
    dict.insert( "rtype", new int(FRType) );
    dict.insert( "rweekdays", new int(FRWeekdays) );
    dict.insert( "rposition", new int(FRPosition) );
    dict.insert( "rfreq", new int(FRFreq) );
    dict.insert( "rhasenddate", new int(FRHasEndDate) );
    dict.insert( "enddt", new int(FREndDate) );
    dict.insert( "start", new int(FRStart) ); // No tr
    dict.insert( "end", new int(FREnd) ); // No tr
    dict.insert( "note", new int(FNote) ); // No tr
    dict.insert( "created", new int(FCreated) ); // No tr
    dict.insert( "action", new int(FAction) ); // No tr
    dict.insert( "actionkey", new int(FActionKey) );
    dict.insert( "actionorig", new int (FJournalOrigHadRepeat) );

    
    QByteArray ba = f.readAll();
    char* dt = ba.data();
    if ( !dt )
	return;
    int len = ba.size();
    int currentAction,
	journalKey,
	origHadRepeat;  // should be bool, but we need tri-state(not being used)

    int i = 0;
    char *point;
    while ( (dt+i !=0) && (( point = strstr( dt+i, "<event " ) ) != 0 )) { // No tr
	i = point - dt;
	// if we are reading in events in the general case,
	// we are just adding them, so let the actions represent that...
	currentAction = ACTION_ADD;
	journalKey = -1;
	origHadRepeat = -1;
	// some temporary variables for dates and times ...
	//int startY = 0, startM = 0, startD = 0, starth = 0, startm = 0, starts = 0;
	//int endY = 0, endM = 0, endD = 0, endh = 0, endm = 0, ends = 0;
	//int enddtY = 0, enddtM = 0, enddtD = 0;

	// ... for the alarm settings ...
	int alarmTime = -1; Event::SoundTypeChoice alarmSound = Event::Silent;
	// ... and for the recurrence
	Event::RepeatPattern rp;
	Event e;

	i += 7;

	while( 1 ) {
	    while ( i < len && (dt[i] == ' ' || dt[i] == '\n' || dt[i] == '\r') )
		++i;
	    if ( i >= len-2 || (dt[i] == '/' && dt[i+1] == '>') )
		break;
	    // we have another attribute, read it.
	    int j = i;
	    while ( j < len && dt[j] != '=' )
		++j;
	    char *attr = dt+i;
	    dt[j] = '\0';
	    i = ++j; // skip =
	    while ( i < len && dt[i] != '"' )
		++i;
	    j = ++i;
	    bool haveAmp = FALSE;
	    bool haveUtf = FALSE;
	    while ( j < len && dt[j] != '"' ) {
		if ( dt[j] == '&' )
		    haveAmp = TRUE;
		if ( ((unsigned char)dt[j]) > 0x7f )
		    haveUtf = TRUE;
		++j;
	    }

	    if ( i == j ) {
		// leave out empty attributes
		i = j + 1;
		continue;
	    }

	    QString value = haveUtf ? QString::fromUtf8( dt+i, j-i )
			    : QString::fromLatin1( dt+i, j-i );
	    if ( haveAmp )
		value = Qtopia::plainString( value );
	    i = j + 1;

	    //qDebug("attr='%s' value='%s'", attr.data(), value.latin1() );
	    int * find = dict[ attr ];
#if 1
	    if ( !find ) {
		// custom field
		e.setCustomField(attr, value);
		continue;
	    }

	    switch( *find ) {
	    case FDescription:
		e.setDescription( value );
		break;
	    case FLocation:
		e.setLocation( value );
		break;
	    case FCategories:
		e.setCategories( Qtopia::Record::idsFromString( value ) );
		break;
	    case FUid:
		e.setUid( value.toInt() );
		break;
	    case FType:
		if ( value == "AllDay" )
		    e.setType( Event::AllDay );
		else
		    e.setType( Event::Normal );
		break;
	    case FAlarm:
		alarmTime = value.toInt();
		break;
	    case FSound:
		alarmSound = value == "loud" ? Event::Loud : Event::Silent; // No tr
		break;
		// recurrence stuff
	    case FRType:
		if ( value == "Daily" ) // No tr
		    rp.type = Event::Daily;
		else if ( value == "Weekly" ) // No tr
		    rp.type = Event::Weekly;
		else if ( value == "MonthlyDay" )
		    rp.type = Event::MonthlyDay;
		else if ( value == "MonthlyDate" )
		    rp.type = Event::MonthlyDate;
		else if ( value == "Yearly" ) // No tr
		    rp.type = Event::Yearly;
		else
		    rp.type = Event::NoRepeat;
		break;
	    case FRWeekdays:
		rp.days = value.toInt();
		break;
	    case FRPosition:
		rp.position = value.toInt();
		break;
	    case FRFreq:
		rp.frequency = value.toInt();
		break;
	    case FRHasEndDate:
		rp.hasEndDate = value.toInt();
		break;
		case FREndDate: {
		rp.endDateUTC = (time_t) value.toLong();
		break;
		}
		case FRStart: {
		e.setStart( (time_t) value.toLong() );
		break;
		}
		case FREnd: {
		e.setEnd( (time_t) value.toLong() );
		break;
		}
	    case FNote:
		e.setNotes( value );
		break;
	    case FCreated:
		rp.createTime = value.toInt();
		break;
	    case FAction:
		currentAction = value.toInt();
		break;
	    case FActionKey:
		journalKey = value.toInt();
		break;
	    case FJournalOrigHadRepeat:
		origHadRepeat = value.toInt();
		break;
	    default:
		qDebug( "huh??? missing enum? -- attr.: %s", attr );
		break;
	    }
#endif
	}
	// "post processing" (dates, times, alarm, recurrence)
	// start date/time
	e.setRepeat( rp.type != Event::NoRepeat, rp );

	if ( alarmTime != -1 )
	    e.setAlarm( TRUE, alarmTime, alarmSound );

	// now do our action based on the current action...
	switch ( currentAction ) {
	case ACTION_ADD:
	    addJFEvent( e );
	    break;
	case ACTION_REMOVE:
	    removeJFEvent( e );
	    break;
	case ACTION_REPLACE:
	    // be a little bit careful,
	    // in case of a messed up journal...
	    if ( journalKey > -1 && origHadRepeat > -1 ) {
		// get the original from proper list...
		if ( origHadRepeat )
		    removeJFEvent( *(repeatEvents.at(journalKey)) );
		else
		    removeJFEvent( *(eventList.at(journalKey)) );
		addJFEvent( e );
	    }
	    break;
	default:
	    break;
	}
    }
    f.close();
}

/*! */
void DateBookDB::init()
{
    d = new DateBookDBPrivate;
    d->clean = false;
    QString str = dateBookFilename();
    if ( str.isNull() ) {
	QMessageBox::warning( 0, qApp->translate( "DateBookDB", "Out of Space"),
			      qApp->translate( "DateBookDB", 
					       "<qt>Unable to create start up files. "
					       "Please free up some space "
					       "before entering data</qt>"));
    }
    // continuing along, we call this datebook filename again,
    // because they may fix it before continuing, though it seems
    // pretty unlikely...
    loadFile( dateBookFilename() );

    if ( QFile::exists( dateBookJournalFile() ) ) {
	// merge the journal
	loadFile( dateBookJournalFile() );
	// save in our changes and remove the journal...
	save();
    }
    d->clean = true;
}

/*! */
bool DateBookDB::save()
{
    return false;
}

/*! */
void DateBookDB::reload()
{
    QValueList<Event>::Iterator it = eventList.begin();
    for ( ; it != eventList.end(); ++it ) {
	if ( (*it).hasAlarm() )
	    delEventAlarm( *it );
	if ( (*it).hasRepeat() )
	    removeRepeat( *it );
    }
    eventList.clear();
    repeatEvents.clear(); // should be a NOP
    init();
}

/*! \a ev */
bool DateBookDB::removeRepeat( const Event &ev )
{
    time_t removeMe = ev.repeatPattern().createTime;
    QValueListIterator<Event> it;
    for ( it = repeatEvents.begin(); it != repeatEvents.end(); ++it ) {
	if ( removeMe == (*it).repeatPattern().createTime ) {
	    repeatEvents.remove( *it );
	    // best break, or we are going into undefined territory!
	    return TRUE;
	}
    }
    return FALSE;
}

/*! \a ev \a orig */
bool DateBookDB::origRepeat( const Event &ev, Event &orig ) const
{
    time_t removeMe = ev.repeatPattern().createTime;
    QValueListConstIterator<Event> it;
    for ( it = repeatEvents.begin(); it != repeatEvents.end(); ++it ) {
	if ( removeMe == (*it).repeatPattern().createTime ) {
	    orig = (*it);
	    return TRUE;
	}
    }
    return FALSE;
}

/*! \a ev \a action */
void DateBookDB::saveJournalEntry( const Event &, journal_action )
{
}

/*! \a evOld \a action \a key \a origHadRepeat */
bool DateBookDB::saveJournalEntry( const Event &, journal_action,
				   int, bool )
{
    return FALSE;
}

/*! */
QValueList<Event> DateBookDB::getRawRepeats() const
{
    return repeatEvents;
}

/*! \a from \a to */
QValueList<Event> DateBookDB::getNonRepeatingEvents( const QDate &from,
						     const QDate &to ) const
{
    QValueListConstIterator<Event> it;
    QDateTime dtTmp, dtEnd;
    QValueList<Event> tmpList;
    for (it = eventList.begin(); it != eventList.end(); ++it ) {
        dtTmp = (*it).start(TRUE);
	dtEnd = (*it).end(TRUE);

        if ( dtTmp.date() >= from && dtTmp.date() <= to ) {
	    Event e = *it;
	    if ( dtTmp.date() != dtEnd.date() )
		e.setEnd( QDateTime(dtTmp.date(), QTime(23, 59, 0)) );
            tmpList.append( e );
	}
	// we must also check for end date information...
	if ( dtEnd.date() != dtTmp.date() && dtEnd.date() >= from ) {
	    QDateTime dt = dtTmp.addDays( 1 );
	    dt.setTime( QTime(0, 0, 0) );
	    QDateTime dtStop;
	    if ( dtEnd > to ) {
		dtStop = to;
	    } else
		dtStop = dtEnd;
	    while ( dt <= dtStop ) {
		Event ev = *it;
		if ( dt >= from ) {
		    ev.setStart( QDateTime(dt.date(), QTime(0, 0, 0)) );
		    if ( dt.date() == dtEnd.date() )
			ev.setEnd( QDateTime(dt.date(), dtEnd.time()) );
		    else
			ev.setEnd( QDateTime(dt.date(), QTime(23, 59, 0)) );
		    tmpList.append( ev );
		}
		dt = dt.addDays( 1 );
	    }
	}
    }
    return tmpList;
}

// QDOC_SKIP_END