datebook.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.7平台上编译为嵌入式图形界面操作系统。

void DateBook::updateIcons()
{
    bool s = eventSelected();

    removeAction->setEnabled(s);
#ifdef Q_WS_QWS
    if (Ir::supported()) {
	beamAction->setEnabled(s);
    }
#endif
    editAction->setEnabled(s);
}

void DateBook::initExceptionMb() {
    exceptionMb = new QMessageBox(tr("Calendar"),
	    tr("Edit all events in this series or just this single event."),
	    QMessageBox::Warning, QMessageBox::Yes,
	    QMessageBox::No | QMessageBox::Default, QMessageBox::Cancel, this);

    exceptionMb->setButtonText(QMessageBox::Yes, tr("All"));
    exceptionMb->setButtonText(QMessageBox::No, tr("Single","1 event, not all"));
    exceptionMb->setTextFormat(RichText);
}

// a bit to extreme.
// should be possible to check each exception for if it still fits
// on a valid date.
bool affectsExceptions(const PimEvent &ne, const PimEvent &oe)
{
    if (oe.hasExceptions()) {
	if (ne.start() != oe.start())
	    return TRUE;
	if (ne.frequency() != oe.frequency())
	    return TRUE;
	if (ne.repeatType() != oe.repeatType())
	    return TRUE;
	if ( ((PrEvent &)ne).p_weekMask() != ((PrEvent &)oe).p_weekMask())
	    return TRUE;
    }
    return FALSE;
}

bool DateBook::checkSyncing()
{
    if (syncing) {
	if ( QMessageBox::warning(this, tr("Calendar"),
	                     tr("Can not edit data, currently syncing"),
			    QMessageBox::Ok, QMessageBox::Abort ) == QMessageBox::Abort )
	{
	    // Okay, if you say so (eg. Qtopia Desktop may have crashed)....
	    syncing = FALSE;
	} else
	    return TRUE;
    }
    return FALSE;
}

void DateBook::editOccurrence( const Occurrence &ev )
{
    if ( checkSyncing() )
	return;

    // if this event is an exception, or has exceptions we may need to do somethign different.
    bool asException;
    PimEvent e;
    if (ev.event().hasRepeat()) {
	// ask if just this one or is series?
	if (!exceptionMb)
	    initExceptionMb();
	exceptionMb->setText(tr("Edit all events in this series or just this single event."));
	switch (exceptionMb->exec()) {
	    default:
		return;
	    case QMessageBox::Yes:
		e = ev.event();
		asException = FALSE;
		break;
	    case QMessageBox::No:
		e = ev.event();
		// modify e to be an exceptional event.
		// with no uid (yet).
		e.setSeriesUid(ev.event().uid());
		e.setRepeatType(PimEvent::NoRepeat);
		e.setStart(ev.start());
		e.clearExceptions();
		asException = TRUE;
		break;
	}
    } else {
	e = ev.event();
	asException = FALSE;
    }

    // workaround added for text input.
    QDialog editDlg( this, 0, TRUE );
    DateEntry *entry;
    if (e.isException())
	editDlg.setCaption( tr("Edit Event Exception") );
    else
	editDlg.setCaption( tr("Edit Event") );
    QVBoxLayout *vb = new QVBoxLayout( &editDlg );
    QScrollView *sv = new QScrollView( &editDlg, "scrollview" );
    sv->setResizePolicy( QScrollView::AutoOneFit );
    // KLUDGE!!!
    sv->setHScrollBarMode( QScrollView::AlwaysOff );
    vb->addWidget( sv );
    VScrollBox *vsb = new VScrollBox( &editDlg );
    entry = new DateEntry( onMonday, e, vsb, "editor" ); // No tr

    // connect the qApp stuff.
    connect( qApp, SIGNAL(weekChanged(bool)),
	     entry, SLOT(setWeekStartsMonday(bool)) );

    //entry->timezone->setEnabled(FALSE);
    sv->addChild( vsb );

    while (QPEApplication::execDialog(&editDlg) ) {
	PimEvent newEv = entry->event();
	QString error = checkEvent(newEv);
	if (!error.isNull()) {
	    if (QMessageBox::warning(this, "Error",
			error, "Fix it", "Continue", 0, 0, 1) == 0)
		continue;
	}
	QUuid u;
	if (asException) {
	    u = db->addException(ev.date(),ev.event(), newEv);
	} else {
	    if (affectsExceptions(newEv, e)) {
		if (QMessageBox::warning(this, tr("Calendar"),
			    tr( "<p>Changes to the start time or recurrence pattern"
				" of this event will cause all exceptions to this event"
				" to be lost.  Continue?"),
			    QMessageBox::Ok, QMessageBox::Cancel|QMessageBox::Default
			    ) != QMessageBox::Ok)
		    return;
		/// need to clear exceptions
		db->removeExceptions(newEv);
		newEv.clearExceptions();
	    }
	    db->updateEvent(newEv);
	    u = newEv.uid();
	}
	emit newEvent();
	if ( views->visibleWidget() == dayView ) {
	    bool ok;
	    PimEvent e = db->find( u, &ok );
	    if ( ok )
		dayView->setCurrentEvent( e );
	}
	break;
    }
}

void DateBook::removeOccurrence( const Occurrence &o )
{
    if ( checkSyncing() )
	return;

    PimEvent e = o.event();

    QString strName = e.description();
    if (e.isException() || e.hasRepeat()) {
	// ask if just this one or is series?
	if (!exceptionMb)
	    initExceptionMb();
	exceptionMb->setText(
		tr("Delete all events in this series or just this single event:<br>%1")
		.arg(strName)
		);
	switch (exceptionMb->exec()) {
	    default:
		return;
	    case QMessageBox::Yes:
		if (e.isException()) {
		    e = db->find(e.seriesUid());
		}
		db->removeEvent( e );
		break;
	    case QMessageBox::No:
		if (e.isException()) {
		    db->removeEvent( e );
		} else {
		    db->addException( o.start().date(), e );
		}
	}
    } else  {
	if ( !QPEMessageBox::confirmDelete( this, tr( "Calendar" ),strName ) )
	    return;
	db->removeEvent( e );
    }

    if ( views->visibleWidget() == dayView && dayView )
        dayView->redraw();
}

void DateBook::addEvent( const PimEvent &e )
{
    QDate d = e.start().date();
    initDay();
    dayView->selectDate( d );
}

void DateBook::editCurrentEvent()
{
    if (eventSelected())
	editOccurrence(currentOccurrence());
}

void DateBook::removeCurrentEvent()
{
    if (eventSelected())
	removeOccurrence(currentOccurrence());
}

void DateBook::beamCurrentEvent()
{
#ifdef Q_WS_QWS
    if (eventSelected())
	beamEvent(currentEvent());
#endif
}


bool DateBook::eventSelected() const
{
    if (views->visibleWidget() && views->visibleWidget() == dayView) {
	return dayView->hasSelection();
    }
    return FALSE;
}

PimEvent DateBook::currentEvent() const
{
    return dayView->currentEvent();
}

Occurrence DateBook::currentOccurrence() const
{
    return dayView->currentItem();
}

void DateBook::showDay( int year, int month, int day )
{
    showDay(QDate(year, month, day));
}

void DateBook::showDay( const QDate &dt )
{
    initDay();
    dayView->selectDate( dt );
    views->raiseWidget( dayView );
    dayView->setFocus();
    dayAction->setOn( TRUE );

    updateIcons();
}

void DateBook::initDay()
{
    if ( !dayView ) {
	dayView = new DayView( db, onMonday, views, "day view" ); // No tr
	views->addWidget( dayView, DAY );
	dayView->setDayStarts( startTime );
	connect( this, SIGNAL( newEvent() ),
		 dayView, SLOT( redraw() ) );
	connect( dayView, SIGNAL( newEvent() ),
		 this, SLOT( fileNew() ) );
	connect( dayView, SIGNAL( removeOccurrence( const Occurrence & ) ),
		 this, SLOT( removeOccurrence( const Occurrence & ) ) );
	connect( dayView, SIGNAL( editOccurrence( const Occurrence & ) ),
		 this, SLOT( editOccurrence( const Occurrence & ) ) );
	connect( dayView, SIGNAL( beamEvent( const PimEvent & ) ),
		 this, SLOT( beamEvent( const PimEvent & ) ) );
	connect( dayView, SIGNAL(newEvent(const QString &)),
		 this, SLOT(newEvent(const QString &)) );
	connect( dayView, SIGNAL(selectionChanged()),
		 this, SLOT(updateIcons()) );

	// qApp connections
	connect( qApp, SIGNAL(weekChanged(bool)),
		dayView, SLOT(setStartOnMonday(bool)) );
    }
}

void DateBook::initWeek()
{
    if ( !weekView ) {
	weekView = new WeekView( db, onMonday, views, "week view" ); // No tr
	weekView->setDayStarts( startTime );
	views->addWidget( weekView, WEEK );
	connect( weekView, SIGNAL( dateActivated( const QDate & ) ),
             this, SLOT( showDay( const QDate & ) ) );
	connect( this, SIGNAL( newEvent() ),
		 weekView, SLOT( redraw() ) );

	// qApp connections
	connect( qApp, SIGNAL(weekChanged(bool)),
		weekView, SLOT(setStartOnMonday(bool)) );
    }
}

void DateBook::initMonth()
{
    if ( !monthView ) {
	monthView = new MonthView( db, views, "month view" ); // No tr
	views->addWidget( monthView, MONTH );
	connect( monthView, SIGNAL( dateClicked( const QDate &) ),
             this, SLOT( showDay( const QDate &) ) );
	connect( this, SIGNAL( newEvent() ),
		 monthView, SLOT( updateOccurrences() ) );
	qApp->processEvents();
    }
}

void DateBook::loadSettings()
{
    {
	Config config( "qpe" );
	config.setGroup("Time");
	onMonday = config.readBoolEntry( "MONDAY" );
    }

    {
	Config config("DateBook");
	config.setGroup("Main");
	startTime = config.readNumEntry("startviewtime", 8);
	aPreset = config.readBoolEntry("alarmpreset");
	presetTime = config.readNumEntry("presettime");
    }
}

void DateBook::saveSettings()
{
    Config config( "qpe" );
    Config configDB( "DateBook" );
    configDB.setGroup( "Main" );
    configDB.writeEntry("startviewtime",startTime);
    configDB.writeEntry("alarmpreset",aPreset);
    configDB.writeEntry("presettime",presetTime);
}

void DateBook::appMessage(const QCString& msg, const QByteArray& data)
{
    bool needShow = FALSE;

    if ( msg == "alarm(QDateTime,int)" ) {
	QDataStream ds(data,IO_ReadOnly);
	QDateTime when; int warn;
	ds >> when >> warn;

	// may be more than one item.
	QValueList<Occurrence> items = db->getNextAlarm(when, warn);
	QValueListIterator<Occurrence> it;
	static bool skip_dialogs = FALSE;

	for (it = items.begin(); it != items.end(); ++it) {
	    Occurrence item = *it;
	    // First Update the alarm for the event.
	    db->updateAlarm(item.event());

	    QDateTime current = QDateTime::currentDateTime();
	    // if we are told to skip and still getting a flood of messages,
	    // continue.
	    if (lastcall.addSecs(1) >= current 
		    && lastcall.addSecs(-1) <= current
		    && skip_dialogs)
		continue;


	    // if alarm in past, (or nearly in the past) go off.
	    if (current.addSecs(60) >= when) {
		QString msg;
		bool bSound = FALSE;
		int stopTimer = 0;
		msg += "<CENTER><B>" + item.event().description() + "</B>"
		    + "<BR>" + item.event().location() + "<BR>";

		if (item.event().timeZone().isValid()) {
		    QString tzText = item.event().timeZone().id();
		    int i = tzText.find('/');
		    tzText = tzText.mid( i + 1 );
		    tzText = tzText.replace(QRegExp("_"), " ");

		    msg += "<B>" + tr("Time zone: ") + "</B>" + tzText + "<BR>";
		}


		msg += TimeString::localYMDHMS(item.event().start())
		    + (warn
			    ? " " + tr("(in %1 minutes)").arg(warn)
			    : QString(""))
		    + "<BR>"
		    + item.event().notes() + "</CENTER>";
		if ( item.event().alarmSound() != PimEvent::Silent ) {
		    bSound = TRUE;
		    Sound::soundAlarm();
		    stopTimer = startTimer( 5000 );
		}

		/*
		QDialog dlg( this, 0, TRUE );
		QVBoxLayout *vb = new QVBoxLayout( &dlg );
		QScrollView *view = new QScrollView( &dlg, "scrollView");
		view->setResizePolicy( QScrollView::AutoOneFit );
		vb->addWidget( view );
		QLabel *lblMsg = new QLabel( msg, &dlg );
		view->addChild( lblMsg );
		QPushButton *cmdOk = new QPushButton( tr("OK"), &dlg );
		connect( cmdOk, SIGNAL(clicked()), &dlg, SLOT(accept()) );
		vb->addWidget( cmdOk );

		needShow = QPEApplication::execDialog(&dlg);
		*/
		//QMessageBox mb(tr("ALRARM"), msg, QMessageBox::NoIcon, QMessageBox::OkButton, 
		switch (QMessageBox::information(this, tr("Alarm"), msg, tr("OK"), 
			    (lastcall.addSecs(1) >= current && lastcall.addSecs(-1) <= current) 
				? tr("OK to all") : QString::null))
		{
		    default:
		    case -1:
			// escape, don't need to show.
			needShow = FALSE;
			skip_dialogs = FALSE;
			break;
		    case 0:
			needShow = TRUE;
			skip_dialogs = FALSE;
			break;
		    case 1:
			skip_dialogs = TRUE;
			break;
		}

		if ( bSound )
		    killTimer( stopTimer );

		lastcall = QDateTime::currentDateTime();
	    }
	}
    } else if ( msg == "newEvent()" ) {
	if ( newEvent(QDateTime(),QDateTime(),QString::null,QString::null) )
	    needShow = TRUE;
    } else if ( msg == "receiveData(QString,QString)" ) {
	QDataStream stream(data,IO_ReadOnly);
	QString f,t;
	stream >> f >> t;
	if ( t.lower() == "text/x-vcalendar" )
	    if ( receiveFile(f) )