StarPilot/tools/cabana/utils/elidedlabel.cc

#include "tools/cabana/utils/elidedlabel.h"
#include <QPainter>
#include <QStyleOption>

ElidedLabel::ElidedLabel(QWidget *parent) : ElidedLabel({}, parent) {}

ElidedLabel::ElidedLabel(const QString &text, QWidget *parent) : QLabel(text.trimmed(), parent) {
  setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
  setMinimumWidth(1);
}

void ElidedLabel::resizeEvent(QResizeEvent* event) {
  QLabel::resizeEvent(event);
  lastText_ = elidedText_ = "";
}

void ElidedLabel::paintEvent(QPaintEvent *event) {
  const QString curText = text();
  if (curText != lastText_) {
    elidedText_ = fontMetrics().elidedText(curText, Qt::ElideRight, contentsRect().width());
    lastText_ = curText;
  }

  QPainter painter(this);
  drawFrame(&painter);
  QStyleOption opt;
  opt.initFrom(this);
  style()->drawItemText(&painter, contentsRect(), alignment(), opt.palette, isEnabled(), elidedText_, foregroundRole());
}