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#include "ImageWidget.h"

ImageWidget::ImageWidget(QWidget *parent)
: QWidget(parent) {

        pixmapOffset = QPoint();
        setBackgroundRole(QPalette::Base);
        setAutoFillBackground(true);
}

ImageWidget::~ImageWidget() {

}

void ImageWidget::setSize(int x, int y) {
        widgetSize = QSize(x, y);
}

void ImageWidget::setText(QString str) {
        initText = str;
}

QSize ImageWidget::minimumSizeHint() const {
        return widgetSize;
}

QSize ImageWidget::sizeHint() const {
        return widgetSize;
}

void ImageWidget::paintEvent(QPaintEvent *) {
        QPainter painter(this);
        painter.setRenderHint(QPainter::Antialiasing, true);

        // Draw a border around this widget
        painter.save();
        painter.setRenderHint(QPainter::Antialiasing, false);
        painter.setPen(palette().dark().color());
        painter.setBrush(Qt::NoBrush);
        painter.drawRect(QRect(0, 0, width() - 1, height() - 1));
        painter.restore();

        // Set default image
        if (pixmap.isNull()) {
                painter.setPen(Qt::black);
                painter.drawText(rect(), Qt::AlignCenter, initText);
                return;
        }

        // Display the saved image
        painter.drawPixmap(pixmapOffset, pixmap);
}

void ImageWidget::updateImage(const QImage &image) {
        if (&image == NULL)
                pixmap = QPixmap(0, 0);
        else {
                // Save the received image as a QPixmap
                pixmap = QPixmap::fromImage(image);
                update();
        }
}