#include "mailtreeviewitem.h"

#include <hbpushbutton.h>

#include <hbabstractitemview.h>

#include <hbtextitem.h>

#include <hbstyle.h>

#include <hblabel.h>

#include <hbanchorlayout.h>

#include <hbframedrawer.h>

#include <hbframeitem.h>

#include <hbicon.h>

#include <hbstyle_p.h>

#include <QPainter>

#include <QDebug>

/*!

    \class NmMessageListViewItem

    \brief list view item for message list view

*/

/*!

    Constructor

*/

MailTreeViewItem::MailTreeViewItem(QGraphicsItem *parent): 

    HbTreeViewItem(parent),

    mSender(0),

    mSubject(0),

    mTime(0),

    mDividerTitle(0),

    mNewMsgIcon(0),

    mFrom(0)

{

}

MailTreeViewItem::~MailTreeViewItem()

{

}

int MailTreeViewItem::type() const

{

    return MailTreeViewItem::Type;

}

HbAbstractViewItem *MailTreeViewItem::createItem()

{

    return new MailTreeViewItem(*this);

}

/*!

    boolean value indicating model index availability

*/

bool MailTreeViewItem::canSetModelIndex(const QModelIndex &index) const

{

    Q_UNUSED(index);

    // This item class can handle all items in message list

    return true;

}

/*!

    update child items

*/

void MailTreeViewItem::updateChildItems()

{

    // to create expand icon, if it doesn't exist

    HbTreeViewItem::updateChildItems();

    // Shared data with ModelFactory.

    int messageRole = Qt::UserRole+1;

    int dateRole = Qt::UserRole+2;

    mLayout = 0;

    setLayout(0);

    // Create layout

    mLayout = new HbAnchorLayout();

    setLayout(mLayout); // mLayout ownership is passed to QGraphicsWidget

    QVariant dateData = modelIndex().data(dateRole);

    QVariant messageData = modelIndex().data(messageRole);

    // Create fonts

    HbFontSpec primaryFont = HbFontSpec(HbFontSpec::Primary);

    HbFontSpec secondaryFont = HbFontSpec(HbFontSpec::Secondary);

    // Check whether item is message item or title divider

    // and set the layout accordingly

    if (messageData.isValid()) {

        QStringList stringList;

        if ( messageData.canConvert<QStringList>()) {

            stringList = messageData.toStringList();

        }

        if (stringList.count() < 3) {

            // to avoid crash

            return;

        }

        delete mDividerTitle;

        mDividerTitle = 0;

        if (!mTime) {

            mTime = new HbLabel();

        }

        mTime->setObjectName("ListViewItemMessageTime");

        mTime->setFontSpec(HbFontSpec(HbFontSpec::Primary));

        // Create subject label

        if (!mSubject) {

            mSubject = new HbLabel();

        }

        mSubject->setObjectName("ListViewItemMessageSubject");

        mSubject->setFontSpec(HbFontSpec(HbFontSpec::Secondary));

        if (!mFrom) {

            mFrom = new HbLabel(stringList.at(0));

        }

        mFrom->setObjectName("ListViewItemMessageSender");

        mFrom->setFontSpec(primaryFont);

        // Create default locale

        /*QLocale locale;

        mTime->setText(locale.toString(

                msgModelItem->metaData().sentTime().toLocalTime().time(),

                QLocale::ShortFormat));*/

        mTime->setPlainText(stringList.at(1));

       // mTime->setAlignment(Qt::AlignVCenter | Qt::AlignRight);

        mSubject->setPlainText(stringList.at(2));

        // Create new message icon

        if (!mNewMsgIcon) {

           HbFrameDrawer *drawer = new HbFrameDrawer(":/resources/qtg_fr_list_new_item", HbFrameDrawer::ThreePiecesVertical);

            drawer->setFillWholeRect(false);

            mNewMsgIcon = new HbFrameItem(drawer, this);

        }

        mNewMsgIcon->setObjectName("ListViewItemMessageIcon");

        static const int iconWidth = 8;

        // Set message item layout

        // Place new message icon to layout

        mLayout->setAnchor(mLayout, Hb::TopEdge, mNewMsgIcon, Hb::TopEdge, 0);

        mLayout->setAnchor(mLayout, Hb::LeftEdge, mNewMsgIcon, Hb::LeftEdge, 0);

        mLayout->setAnchor(mNewMsgIcon, Hb::RightEdge, mFrom, Hb::LeftEdge, 0);

        // Set from & subject 10 pixels from left

        mLayout->setAnchor(mLayout, Hb::TopEdge, mFrom, Hb::TopEdge, 0);

        mLayout->setAnchor(mLayout, Hb::LeftEdge, mFrom, Hb::LeftEdge, iconWidth);

        mLayout->setAnchor(mLayout, Hb::RightEdge, mSubject, Hb::RightEdge, iconWidth);

        mLayout->setAnchor(mLayout, Hb::LeftEdge, mSubject, Hb::LeftEdge, iconWidth);

        mLayout->setAnchor(mFrom, Hb::BottomEdge, mSubject, Hb::TopEdge, 0);

        // Set Time label to correct place

        mLayout->setAnchor(mTime, Hb::LeftEdge, mLayout, Hb::RightEdge, 100);

        mLayout->setAnchor(mFrom, Hb::RightEdge, mTime, Hb::LeftEdge, 0);

        // Set subject right edge alignment

        mLayout->setAnchor(mSubject, Hb::RightEdge, mLayout, Hb::RightEdge, iconWidth);

        mLayout->setPreferredHeight(50);

        setObjectName("ListViewItemMessage");

    }

    else if (dateData.isValid()) {

        QString date;

        if (dateData.canConvert<QString>()) {

            date = dateData.toString();

        }

        else {

            return;

        }

        // NOTE: Layout data will be read from xml once orbit supports it

        // Create divider icon

        delete mTime;

        mTime = 0;

        delete mSubject;

        mSubject = 0;

        delete mNewMsgIcon;

        mNewMsgIcon = 0;

        delete mFrom;

        mFrom = 0;

        // Create divider title

        if (!mDividerTitle) {

            mDividerTitle = new HbLabel();

        }

        mDividerTitle->setObjectName("ListViewItemDividerTitle");

        mDividerTitle->setPlainText(date);

        mDividerTitle->setFontSpec(primaryFont);

        mDividerTitle->setAlignment(Qt::AlignVCenter | Qt::AlignLeft);

        // Add title divider text

        mLayout->setAnchor(mLayout, Hb::TopEdge, mDividerTitle, Hb::TopEdge, 1);

        mLayout->setAnchor(mLayout, Hb::LeftEdge, mDividerTitle, Hb::LeftEdge, 0);

        QGraphicsItem *graphicsItem = primitive(QLatin1String("subitem-indicator"));

        if (    graphicsItem 

            &&  graphicsItem->isWidget()) {

            HbLabel *dividerIcon = qobject_cast<HbLabel*>(static_cast<QGraphicsWidget*>(graphicsItem));

            if (dividerIcon) {

                mLayout->setAnchor(mLayout, Hb::TopEdge, dividerIcon, Hb::TopEdge, 5);

                mLayout->setAnchor(dividerIcon, Hb::RightEdge, mLayout, Hb::RightEdge, 20);

            }

        }

        mLayout->setPreferredHeight(32);

        setObjectName("ListViewItemDivider");

    }

    else {

        qDebug() <<"MailTreeViewItem: Invalid message meta data when drawing message list";

    }

    const QSizeF reso = HbDeviceProfile::current().logicalSize();

    mLayout->setPreferredWidth(reso.width()-20);

}

void MailTreeViewItem::polishEvent()

{

    QGraphicsWidget::polishEvent();

}

HbWidgetBase *MailTreeViewItem::updateExpandItem()

{

    HbLabel *dividerIcon = 0;

    QGraphicsItem *graphicsItem = primitive(QLatin1String("subitem-indicator"));

    if (    graphicsItem 

        &&  graphicsItem->isWidget()) {

        dividerIcon = qobject_cast<HbLabel*>(static_cast<QGraphicsWidget*>(graphicsItem));

    }

    if (!dividerIcon) {

        dividerIcon = new HbLabel();

        HbIcon icon;

        icon.setIconName(":/resources/qtg_nmailui_minus_sign", QIcon::Normal, QIcon::On);

        icon.setIconName(":/resources/qtg_nmailui_plus_sign", QIcon::Normal, QIcon::Off);

        dividerIcon->setIcon(icon);

    }

    if (isExpanded()) {

        dividerIcon->setObjectName("ListViewItemDividerIconMinus");

    }

    else {

        dividerIcon->setObjectName("ListViewItemDividerIconPlus");

    }

    return dividerIcon;

}

void MailTreeViewItem::paint(

    QPainter *painter,

    const QStyleOptionGraphicsItem *option,

    QWidget *widget)

{

    Q_UNUSED(option);

    Q_UNUSED(widget);

    if (painter){

        painter->save();

        painter->setOpacity(0.15);

        QLineF line1( rect().topLeft().x(), rect().bottomRight().y(),

                     rect().bottomRight().x(), rect().bottomRight().y());

        painter->drawLine(line1);

        // Draw line before each item

        QLineF line2( rect().topLeft().x(), rect().topLeft().y(),

                     rect().bottomRight().x(), rect().topLeft().y());

        painter->drawLine(line2);

        painter->restore();

    }

}