#include <QPainter>
#include <QSvgRenderer>
#include <QPixmapCache>
#include <QGraphicsSceneMouseEvent>
#include "handcounter.h"
#include "cardzone.h"

HandCounter::HandCounter(QGraphicsItem *parent)
    : AbstractGraphicsItem(parent), number(0)
{
    setCacheMode(DeviceCoordinateCache);
}

HandCounter::~HandCounter()
{
}

void HandCounter::updateNumber()
{
    number = static_cast<CardZone *>(sender())->getCards().size();
    update();
}

QRectF HandCounter::boundingRect() const
{
    return QRectF(0, 0, 72, 72);
}

void HandCounter::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
{
    painter->save();
    QSize translatedSize = painter->combinedTransform().mapRect(boundingRect()).size().toSize();
    QPixmap cachedPixmap;
#if QT_VERSION >= 0x040600
    if (!QPixmapCache::find("handCounter" + QString::number(translatedSize.width()), &cachedPixmap)) {
#else
    if (!QPixmapCache::find("handCounter" + QString::number(translatedSize.width()), cachedPixmap)) {
#endif
        QSvgRenderer svg(QString("theme:hand.svg"));
        cachedPixmap = QPixmap(translatedSize);
        cachedPixmap.fill(Qt::transparent);
        QPainter painter(&cachedPixmap);
        svg.render(&painter, QRectF(0, 0, translatedSize.width(), translatedSize.height()));
        QPixmapCache::insert("handCounter" + QString::number(translatedSize.width()), cachedPixmap);
    }
    painter->resetTransform();
    painter->drawPixmap(cachedPixmap.rect(), cachedPixmap, cachedPixmap.rect());
    painter->restore();
    
    paintNumberEllipse(number, 24, Qt::white, -1, -1, painter);
}

void HandCounter::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
    if (event->button() == Qt::RightButton) {
        emit showContextMenu(event->screenPos());
        event->accept();
    }
}