dayview.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。

    switch (typ) {
	case ScrollingDay:
	    {
		int rx = 0;
		int ry = 0;
		int rh = 0;
		int t = 0;
		while (t < 24) {
		    QString s = TimeString::localH(t);
		    ry = posOfHour(t);
		    t++;
		    rh = posOfHour(t) - ry;

		    if (ry > y + h)
			break;
		    if (ry + rh < y)
			continue;

		    // draw this rect.
		    QPen pn = p->pen();
		    p->setPen(lightGray);
		    p->drawLine( rx, ry - 1, width(), ry - 1);
		    p->setPen(pn);

		    bool isDown;
		    if ( t > firstSel && t <= lastSel + 1 ){
			p->setFont(selectFont);
			isDown = TRUE;
		    } else {
			p->setFont(f);
			isDown = FALSE;
		    }

#if (QT_VERSION-0 >= 0x030000)
		    style().drawPrimitive(
			    QStyle::PE_ButtonBevel,
			    p,
			    QRect(rx, ry, time_width, time_height),
			    cgUp, isDown ? QStyle::Style_Enabled | QStyle::Style_Down : QStyle::Style_Raised);//QStyle::Style_Enabled | QStyle::Style_Up);

		    //style().drawToolButton(p, rx, ry, time_width, time_height,
			    //cgUp, t > firstSel && t <= lastSel + 1 );
		    style().drawItem(p, QRect(rx+day_time_margin, ry, time_width-day_time_margin*2, time_height),
			    AlignRight | AlignTop, cgUp, TRUE, 0, s);
#else
		    p->fillRect( rx, ry, time_width, time_height, white );
# ifndef QTOPIA_PHONE
		    style().drawToolButton(p, rx, ry, time_width, time_height,
			    cgUp, t > firstSel && t <= lastSel + 1 );
#endif
		    style().drawItem(p, rx+day_time_margin, ry, time_width-day_time_margin*2, time_height,
			    AlignRight | AlignTop, cgUp, TRUE, 0, s);
#endif
		    p->setPen(pn);
		}
	    }
	    break;
	case CompressedDay:
	    {
		int hours[24];
		QString hourStrings[24];
		int num_hours = 0;
		const TimeList &times = ((CompressedDayLayout *)itemList)->times;
		int cur = 0;
		int prev = 0;
		int i;
		for ( i = 0; i < 24; i++ ) {
		    cur = times.hits(i);
		    if ( cur != prev ) {
			prev = cur;
			hours[num_hours] = i;
			//hourStrings[num_hours] = TimeString::timeString( times.time( i ), FALSE );
			hourStrings[num_hours] = TimeString::localHM( times.time(i), TimeString::Short );
			num_hours++;
		    }
		}

		int rx = 0;
		int ry = 0;
		int rh = 0;
		int t = 0;
		for ( i = 0; i < num_hours; i++ ) {
		    t = hours[i];
		    QString s = hourStrings[i];
		    ry = posOfHour(t);
		    t++;
		    rh = posOfHour(t + 1) - ry;

		    if (ry > y + h)
			break;
		    if (ry + rh < y)
			continue;

		    // draw this rect.
		    QPen pn = p->pen();
		    p->setPen(lightGray);
		    p->drawLine( rx, ry - 1, width(), ry - 1);
		    p->setPen(pn);

		    bool isDown;
		    if ( t > firstSel && t <= lastSel + 1 ){
			p->setFont(selectFont);
			isDown = TRUE;
		    } else {
			p->setFont(f);
			isDown = FALSE;
		    }

#if (QT_VERSION-0 >= 0x030000)
		    style().drawPrimitive(
			    QStyle::PE_ButtonBevel,
			    p,
			    QRect(rx, ry, time_width, rh),
			    cgUp, isDown ? QStyle::Style_Enabled | QStyle::Style_Down : QStyle::Style_Raised);//QStyle::Style_Enabled | QStyle::Style_Up);

		    //style().drawToolButton(p, rx, ry, time_width, rh,
			    //cgUp, t > firstSel && t <= lastSel + 1 );
		    style().drawItem(p, QRect(rx+day_time_margin, ry, time_width-day_time_margin*2, rh),
			    AlignRight | AlignTop, cgUp, TRUE, 0, s);
#else
		    p->fillRect( rx, ry, time_width, rh, white );
# ifndef QTOPIA_PHONE
		    style().drawToolButton(p, rx, ry, time_width, rh,
			    cgUp, t > firstSel && t <= lastSel + 1 );
# endif
		    style().drawItem(p, rx+day_time_margin, ry, time_width-day_time_margin*2, rh,
			    AlignRight | AlignTop, cgUp, TRUE, 0, s);
#endif
		    p->setPen(pn);
		}
	    }
	    break;
	case AllDay:
	    break;
    }
    if ( isClipped )
	p->setClipRegion( oldClip );
    p->setClipping( isClipped );
}

int DayViewContents::posOfHour(int h) const
{
    switch (typ) {
	case ScrollingDay:
	    // all hours, regardless of height.
	    return h < 0 ? 0 : h*time_height;
	case CompressedDay:
	    if ( h <= 0 )
		return 0;
	    else if ( h > 25 )
		return height();
	    else {
		const TimeList &times = ((CompressedDayLayout *)itemList)->times;
		int n = times.scale( times.height( h ), height() );
		if ( h == 24 && n == 0 )
		    return height();
		return n;
	    }
	default:
	    return 0;
    }
    return 0;
}

int DayViewContents::hourAtPos(int h) const {
    switch (typ) {
	case ScrollingDay:
	    // all hours, regardless of height.
	    return h == 0 ? 0 : h/time_height;
	case CompressedDay:
	    {
		const TimeList &times = ((CompressedDayLayout *)itemList)->times;
		for ( int i = 1; i <= 24; i++ ) {
		    int n = times.scale( times.height( i ), height() );
		    if ( n >= h )
			return i - 1;
		}
		return 0;
	    }
	default:
	    return 0;
    }
    return 0;
}

//===========================================================================

DayView::DayView( DateBookTable *newDb, bool startOnMonday,
			  QWidget *parent, const char *name )
    : PeriodView( newDb, startOnMonday, parent, name )
{
    QFontMetrics fm( font() );
    day_height = fm.height() + 5;
#ifdef QTOPIA_DESKTOP
    day_height += 2;	// difference in font metrics?
#endif

    QVBoxLayout *layout = new QVBoxLayout(this);

#ifdef USE_LABEL_HEADER
    QHBox *header = new QHBox( this );
    header->setBackgroundMode(PaletteButton);
    header->setMargin( 2 );

    header1 = new QLabel(header);
    header1->setBackgroundMode(PaletteButton);
    header1->setAlignment(AlignLeft);
    header1->setText(header1Text(cDate));

    header2 = new QLabel(header);
    header2->setBackgroundMode(PaletteButton);
    header2->setAlignment(AlignRight);
    header2->setText(header2Text(cDate));
#else
    header = new DayViewHeader( startOnMonday, this, "day header" ); // No tr
    header->setDate( cDate.year(), cDate.month(), cDate.day() );
#endif
    layout->addWidget(header);

    allView = new DayViewContents( DayViewContents::AllDay,
	    this, "all day view" ); // No tr
    allView->setFocusPolicy(NoFocus);
    layout->addWidget(allView);
    view = new DayViewContents( DayViewContents::ScrollingDay,
	    this, "day view" ); // No tr
    view->setSizePolicy(
	    QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
    view->setFrameStyle( QFrame::NoFrame );
    allView->setFrameStyle( QFrame::NoFrame );
    layout->addWidget(view);
#ifndef USE_LABEL_HEADER
    connect( header, SIGNAL( dateChanged(const QDate&) ),
             this, SLOT( selectDate(const QDate&) ) );
#endif
    connect( view, SIGNAL( sigColWidthChanged() ),
             this, SLOT( slotColWidthChanged() ) );

    connect( view, SIGNAL(keyPressed(const QString&)),
	     this, SIGNAL(newEvent(const QString&)) );

    connect( view, SIGNAL(editEvent(const PimEvent&)),
	     this, SIGNAL(editEvent(const PimEvent&)) );
    connect( view, SIGNAL(removeEvent(const PimEvent&)),
	     this, SIGNAL(removeEvent(const PimEvent&)) );
    connect( view, SIGNAL(beamEvent(const PimEvent&)),
	     this, SIGNAL(beamEvent(const PimEvent&)) );
    connect( view, SIGNAL(editOccurrence(const Occurrence&)),
	     this, SIGNAL(editOccurrence(const Occurrence&)) );
    connect( view, SIGNAL(removeOccurrence(const Occurrence&)),
	     this, SIGNAL(removeOccurrence(const Occurrence&)) );
    connect( view, SIGNAL(showDetails()),
	     this, SIGNAL(showDetails()) );
    connect( view, SIGNAL(setCurrentEvent(const PimEvent&)),
	     this, SLOT(setCurrentEvent(const PimEvent&)) );

    connect( allView, SIGNAL(editOccurrence(const Occurrence&)),
	     this, SIGNAL(editOccurrence(const Occurrence&)) );
    connect( allView, SIGNAL(removeOccurrence(const Occurrence&)),
	     this, SIGNAL(removeOccurrence(const Occurrence&)) );
    connect( allView, SIGNAL(beamEvent(const PimEvent&)),
	     this, SIGNAL(beamEvent(const PimEvent&)) );
    connect( allView, SIGNAL(showDetails()),
	     this, SIGNAL(showDetails()) );
    connect( allView, SIGNAL(setCurrentEvent(const PimEvent&)),
	     this, SLOT(setCurrentEvent(const PimEvent&)) );
    setFocusPolicy(StrongFocus);
    setFocus();
}

#ifdef USE_LABEL_HEADER

QString DayView::header1Text(const QDate &d) const
{
    return tr("%1", "Date as day of week")
	.arg(TimeString::localDayOfWeek(d, TimeString::Long));
}

QString DayView::header2Text(const QDate &d) const
{
    return tr("%1", "Date in local format")
	.arg(TimeString::localYMD(d));
}

#endif

void DayView::selectedDates( QDateTime &start, QDateTime &end )
{
    int sh = view->startHour();
    int eh = view->endHour();

    if (sh >= 0) {
	start.setTime( QTime( sh, 0, 0 ) );
	if (eh == 24) {
	    end.setDate(cDate.addDays(1));
	    end.setTime( QTime(0,0,0) );
	} else {
	    end.setTime( QTime( eh, 0, 0 ) );
	}
    }
}

void DayView::clearSelectedDates()
{
    view->clearSelectedTimes();
}

void DayView::selectDate(int y, int m)
{
    if ( y != cDate.year() || m != cDate.month() ) {
	QDate nd( y, m, 1 );
	if ( nd.daysInMonth() < cDate.day() )
	    selectDate(QDate(y, m, nd.daysInMonth()));
	else
	    selectDate(QDate(y, m, cDate.day()));
    }
}

void DayView::selectDate( const QDate &d)
{
    if ( cDate == d )
	return;
    PeriodView::selectDate(d);

#ifdef USE_LABEL_HEADER
    header1->setText(header1Text(d));
    header2->setText(header2Text(d));
#else
    header->setDate( d.year(), d.month(), d.day() );
#endif
    view->selectDate(d);

    relayoutPage();
}

bool DayView::hasSelection() const
{
    return (allView->currentItem() || view->currentItem());
}

PimEvent DayView::currentEvent() const
{
    DayItem *dim = allView->currentItem();
    if (dim)
	return dim->event();
    dim = view->currentItem();
    if (dim)
	return dim->event();
    return PimEvent();
}

Occurrence DayView::currentItem() const
{
    DayItem *dim = allView->currentItem();
    if (dim)
	return dim->occurrence();
    dim = view->currentItem();
    if (dim)
	return dim->occurrence();

    return Occurrence();
}

void DayView::setCurrentItem( const Occurrence &o )
{
    setCurrentEvent(o.event());
}

void DayView::setCurrentEvent( const PimEvent &e )
{
    DayViewContents *views[2] = { allView, view };
    DayItem *curr[2] = { allView->currentItem(), view->currentItem() };
    for ( int i = 0; i < 2; i++ ) {
	int other = (i + 1) % 2;
	DayItem *orig = views[i]->currentItem();
	DayItem *dim = views[i]->firstItem(FALSE);
	if (dim) {
	    do {
		if (dim->event() == e) {
		    views[i]->setCurrentItem( dim, FALSE );
		    views[i]->moveSelection(orig, dim);
		    if (!orig)
			views[other]->moveSelection( curr[other], 0 );
		    break;
		    viewWithFocus = i;
		    break;
		}
	    } while ((dim = views[i]->nextItem(FALSE)) != 0);
	}
    }
}

void DayView::setCompressDay( bool compressDay )
{
    view->setType( compressDay ? DayViewContents::CompressedDay : DayViewContents::ScrollingDay );
}

void DayView::redraw()
{
    //if ( isUpdatesEnabled() )
	relayoutPage();
}

void DayView::getEvents()
{
    view->clearItems();
    allView->clearItems();

    QValueList<Occurrence> eventList = db->getOccurrences( cDate, cDate );

    int allDayCount = 0;
    QValueListIterator<Occurrence> it;
    for ( it = eventList.begin(); it != eventList.end(); ++it ) {
	if ((*it).event().isAllDay()) {
	    allView->addOccurrence(*it, cDate);
	    allDayCount++;
	} else {
	    view->addOccurrence(*it, cDate);
	}
    }
    if (allDayCount) {
	int fixed_height;
	if (allDayCount > 4)
	    fixed_height = 2 * day_height + (day_height / 2 );
	else
	    fixed_height = day_height * (++allDayCount / 2 );

	allView->setMaximumHeight(fixed_height);
	allView->setMinimumHeight(fixed_height);

	allView->layoutItems();
	allView->show();
	allView->firstItem();
	viewWithFocus = 0;
    } else {
	allView->hide();
	view->firstItem(FALSE);
	viewWithFocus = 1;
    }

    emit selectionChanged();
}


void DayView::relayoutPage( bool fromResize )
{
    if ( !fromResize )
        getEvents();    // no need we already have them!
    view->setMetrics( QFontMetrics( qApp->font() ) );
    allView->layoutItems();

    return;
}

void DayView::setDayStarts( int startHere )
{
    PeriodView::setDayStarts(startHere);
    view->startAtTime(startHere);
}

void DayView::setStartOnMonday( bool bStartOnMonday )
{
#ifndef USE_LABEL_HEADER
    header->setStartOfWeek( bStartOnMonday );
#else
    Q_UNUSED(bStartOnMonday)
#endif
}

void DayView::keyPressEvent(QKeyEvent *e)
{
    switch(e->key()) {
	case Key_Up:
	    previousEvent();
	    break;
	case Key_Down:
	    nextEvent();
	    break;
	case Key_Left:
	    selectDate(cDate.addDays(-1));
	    break;
	case Key_Right:
	    selectDate(cDate.addDays(1));
	    break;
#ifdef QTOPIA_PHONE
	case Key_1:
	    selectDate(cDate.addDays(-7));
	    break;
	case Key_3:
	    selectDate(cDate.addDays(7));
	    break;
	case Key_4:
	    if (cDate.month() == 1)
		selectDate(cDate.year()-1, 12);
	    else
		selectDate(cDate.year(), cDate.month()-1);
	    break;
	case Key_6:
	    if (cDate.month() == 12)
		selectDate(cDate.year()+1, 1);
	    else
		selectDate(cDate.year(), cDate.month()+1);
	    break;
	case Key_7:
	    selectDate(cDate.year()-1, cDate.month());
	    break;
	case Key_9:
	    selectDate(cDate.year()+1, cDate.month());
	    break;
	case Key_5:
	    selectDate(QDate::currentDate());
	    break;
	case Key_Select:
	    if ( hasSelection() )
		emit showDetails();
	    break;
#endif
	default:
	    e->ignore();
    }
}

void DayView::previousEvent()
{
    if (viewWithFocus == 0) {
	if (!allView->previousItem())
	    if ( view->lastItem() )
		viewWithFocus = 1;
	    else
		allView->lastItem();
    } else  {
	if (!view->previousItem()) {
	    if (allView->lastItem())
		viewWithFocus = 0;
	    else
		view->lastItem();
	}
    }
}

void DayView::nextEvent()
{
    if (viewWithFocus == 0) {
	if (!allView->nextItem()) {
	    if (view->firstItem())
		viewWithFocus = 1;
	    else
		allView->firstItem();
	}
    } else  {
	if (!view->nextItem())
	    if ( allView->firstItem() )
		viewWithFocus = 0;
	    else
		view->firstItem();
    }
}