transmission/qt/SqueezeLabel.cc

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#include <QPainter>
#include <QStyle>
#include <QStyleOption>

#include "SqueezeLabel.h"

SqueezeLabel::SqueezeLabel(QString const& text, QWidget* parent)
    : QLabel(text, parent)
{
}

SqueezeLabel::SqueezeLabel(QWidget* parent)
    : QLabel(parent)
{
}

void SqueezeLabel::paintEvent(QPaintEvent* paintEvent)
{
    if (hasFocus() && (textInteractionFlags() & (Qt::TextSelectableByKeyboard | Qt::TextSelectableByMouse)) != 0)
    {
        return QLabel::paintEvent(paintEvent);
    }

    QPainter painter(this);
    QFontMetrics const fm = fontMetrics();
    QStyleOption opt;
    opt.initFrom(this);
    auto const full_text = text();
    auto const elided_text = fm.elidedText(full_text, Qt::ElideRight, width());
    style()->drawItemText(&painter, contentsRect(), alignment(), opt.palette, isEnabled(), elided_text, foregroundRole());

#ifndef QT_NO_TOOLTIP
    setToolTip(full_text != elided_text ? full_text : QString{});
#endif
}