#include "pictureview.h"

#include <QPainter>
#include <QDebug>

#include "httpwrapper.h"

PictureView::PictureView(QWidget* parent)
        : QWidget(parent)
{
}


void PictureView::paintEvent ( QPaintEvent* event)
{    
    Q_UNUSED(event);

    QSize s = this->size();

    QBrush blackBrush(Qt::black);

    QPainter painter(this);
    painter.fillRect( QRect(0,0,s.width(), s.height()), blackBrush);

    int x = 0;
    int y = 0;

    if (image.width() < s.width() )  {
        x = (s.width() - image.width()) / 2;
    }
    if (image.height() < s.height() ) {
        y = (s.height() - image.height()) / 2;
    }


    painter.drawPixmap(x,y,image);
    painter.end();
}

void PictureView::loadFromUrl(QString source)
{
    QMap<QString, QPixmap>::iterator it = map.find(source);
    if (it != map.end() ) {
        image = it.value();
        this->repaint();
    } else {
        qDebug() << "Loading file " << source;

        QPixmap pixmap;
        if (source.at(0) == '/') { //local file
            pixmap = QPixmap(source);
        } else {
            QByteArray data = HttpWrapper::getSyncData(source);
            pixmap.loadFromData( data );
        }

        QPixmap scaledImage = pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);

        image = scaledImage;
        this->repaint();

        map.insert(source, scaledImage);

    }
}