/*
* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:  Event view item, exact size and position of event is set in 
*  				CalenDayContainer::setItemModelIndex based on event duration
*
*/

// System includes
#include <HbFrameItem>
#include <HbTextItem>
#include <HbStyle>
#include <HbColorScheme>
#include <agendaentry.h>

// User includes
#include "calendaycommonheaders.h"
#include "calendayitem.h"
#include "calendaystatusstrip.h"
#include "calendaymodel.h"
#include "calendayutils.h"
#include "calenagendautils.h"
#include "calendaycontainer.h"

/*!
 \brief Constructor.
 */
CalenDayItem::CalenDayItem(const CalenDayContainer *container) :
    mContainer(container), mUpdated(false), mBg(0), mEventDesc(0),
        mColorStripe(0), mEventDescMinWidth(0.0), mFrameMinWidth(0.0)
{
}

/*!
 \brief Constructor.
 */
CalenDayItem::CalenDayItem(const CalenDayItem & source) :
    HbAbstractViewItem(source), mContainer(source.container()),
        mUpdated(false), mBg(0), mEventDesc(0), mColorStripe(0),
        mEventDescMinWidth(0.0), mFrameMinWidth(0.0)
{
    mBg = new HbFrameItem("qtg_fr_cal_meeting_bg", HbFrameDrawer::NinePieces,
        this);
    mEventDesc = new HbTextItem(this);
    // TODO: probably ElideLeft needed for mirrored layout
    mEventDesc->setElideMode(Qt::ElideRight);
    mEventDesc->setTextWrapping(Hb::TextWrapAnywhere);
    mColorStripe = new CalenDayStatusStrip(this);

    HbStyle::setItemName(mBg, QLatin1String("backgroundFrame"));
    HbStyle::setItemName(mEventDesc, QLatin1String("eventDescription"));
    HbStyle::setItemName(static_cast<QGraphicsItem *> (mColorStripe),
        QLatin1String("colorStripe"));

    HbDeviceProfile deviceProfile;
    qreal stripeWidth = KCalenTimeStripWidth * deviceProfile.unitValue();
    mColorStripe->setPreferredWidth(stripeWidth);

    // Minimum size of event frame (without/with description) 
    mFrameMinWidth = KCalenMinEventWidth * deviceProfile.unitValue();
    mEventDescMinWidth = KCalenMinTouchableEventWidth
        * deviceProfile.unitValue();

    // Minimum width is assured by widgetml and css, additionally called here 
    // to prevent minimum size hint caching inside effectiveSizeHint
    setMinimumWidth(stripeWidth);
}

/*!
 \brief Destructor.
 */
CalenDayItem::~CalenDayItem()
{
}

/*!
 \brief Creates new instance of day item.
 
 \return New instance of day item.
 */
HbAbstractViewItem * CalenDayItem::createItem()
{
    CalenDayItem* newItem = new CalenDayItem(*this);
    return newItem;
}


/*!
 \brief Sets data to be displayed on item.
 */
void CalenDayItem::updateChildItems()
{
    // there is no need to update items after creation
    if (!mUpdated) {
        AgendaEntry entry;
        entry = modelIndex().data(CalenDayEntry).value<AgendaEntry> ();

        bool isAllDayEvent = CalenAgendaUtils::isAlldayEvent(entry);
        setDescription(entry, isAllDayEvent);
        setStatusStrip(entry, isAllDayEvent);

        mUpdated = true;
    }

    //TODO: check if needed
    //repolish(); 
    //HbAbstractViewItem::updateChildItems();
}


/*!
 \brief Adds event description for the item.
 
 \param entry An for which description needs to be displayed.
 \param allDayEvent Flag that indicates whether an item is all day event
 */
void CalenDayItem::setDescription(const AgendaEntry &entry, bool allDayEvent)
{
    QString description(entry.summary());
    QString location(entry.location());

    int separtorPos = 0;
    if (!location.isEmpty()) {
        if (!description.isEmpty()) {
            separtorPos = description.count();
            description.append(", ");
        }
        description.append(location);
    }

    if (description.isEmpty()) {
        description.append(hbTrId("txt_calendar_dblist_unnamed"));
    }

    //Description of all day events has to be displayed vertically
    if (allDayEvent) {
        QString verticalString;
        for (int i = 0; i < description.count(); i++) {
            verticalString.append(QString(description.at(i)) + "\n");
        }

        // remove "\n" before comma separator if exist
        if (separtorPos) {
            verticalString.remove(2 * separtorPos - 1, 1);
        }
        description = verticalString;
    }

    mEventDesc->setText(description);
}

/*!
 \brief It set all needed things for status strip from Agenda Entry.
 
 \param entry Status Strip is created from Agenda Entry
 */
void CalenDayItem::setStatusStrip(const AgendaEntry &entry, bool allDayEvent)
{
    if (!allDayEvent) {

        QDateTime startTime;
        QDateTime endTime;
        QDateTime currentDateTime;
        currentDateTime.setDate(container()->date());

        CalenDayUtils::instance()->getEventValidStartEndTime(startTime,
            endTime, entry, currentDateTime);

        mColorStripe->setStartEndTime(startTime.time(), endTime.time());
    }
    else {
        // This is workaround for displaying all-day events.
        // Now for MS Outlook compability all-day events' start and end time is
        // 00:00:00 and 00:00:00 next day respectively.
        // To draw it correctly we need times like those visible for user in
        // editor: 00:00:00 to 23:59:59 (the same day)
        mColorStripe->setStartEndTime(entry.startTime().time(),
            entry.endTime().time().addSecs(-1));
    }

    switch (entry.status()) {
        case AgendaEntry::Confirmed:
            mColorStripe->setDrawingStyle(CalenDayStatusStrip::Filled);
            break;
        case AgendaEntry::Tentative:
            mColorStripe->setDrawingStyle(CalenDayStatusStrip::StripWithLines);
            break;
        case AgendaEntry::Cancelled:
            mColorStripe->setDrawingStyle(CalenDayStatusStrip::OnlyFrame);
            break;
        default:
            mColorStripe->setDrawingStyle(CalenDayStatusStrip::Filled);
            break;
    }
}

/*!
 \brief Reimplemented from HbWidget. Handles resize event.
 
 \param event Instance of an event to be handled.
 */
void CalenDayItem::resizeEvent(QGraphicsSceneResizeEvent *event)
{
    Q_UNUSED(event)

    qreal width = rect().width();

    if (width < mEventDescMinWidth) {
        mEventDesc->hide();
    }
    else {
        mEventDesc->show();
    }

    if (width < mFrameMinWidth) {
        mBg->hide();
    }
    else {
        mBg->show();
    }

    // Necessary to switch layout
    repolish();
}

// End of File