Method paintEvent

ui/remoteviewwidget.cpp:565–600

}

void RemoteViewWidget::paintEvent(QPaintEvent *event)
{
    Q_UNUSED(event);
    QPainter p(this);

    if (!m_frame.isValid()) {
        QWidget::paintEvent(event);
        p.drawText(rect(), Qt::AlignHCenter | Qt::AlignVCenter, m_unavailableText);
        return;
    }

    drawBackground(&p);

    p.save();
    p.setTransform(QTransform::fromTranslate(m_x, m_y));
    if (m_zoom < 1.0) { // We want the preview to look nice when zoomed out,
                        // but need to be able to see single pixels when zoomed in.
        p.setRenderHint(QPainter::SmoothPixmapTransform);
    }

    p.save();
    p.setTransform(QTransform().scale(m_zoom, m_zoom), true);
    p.setTransform(m_frame.transform(), true);
    p.drawImage(QPoint(), m_frame.image());
    p.restore();

    drawDecoration(&p);
    p.restore();

    drawRuler(&p);
    if (m_showFps)
        drawFPS(&p);

    if (m_interactionMode == Measuring && m_hasMeasurement)
        drawMeasureOverlay(&p);
}

void RemoteViewWidget::drawBackground(QPainter *p)
{