urllineedit.cpp Example File

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  #include "urllineedit.h"
  #include <QToolButton>
  #include <QUrl>

  UrlLineEdit::UrlLineEdit(QWidget *parent)
      : QLineEdit(parent)
      , m_favButton(new QToolButton(this))
      , m_clearButton(new QToolButton(this))
  {
      m_clearButton->setIcon(QIcon(QStringLiteral(":closetab.png")));
      m_clearButton->setVisible(false);
      m_clearButton->setCursor(Qt::ArrowCursor);
      QString style(QStringLiteral("QToolButton { border: none; padding: 1px; }"));
      m_clearButton->setStyleSheet(style);
      m_favButton->setStyleSheet(style);
      setStyleSheet(QStringLiteral("QLineEdit { padding-left: %1px; padding-right: %2px;  } ")
                    .arg(m_clearButton->sizeHint().width())
                    .arg(m_favButton->sizeHint().width()));
      int minIconHeight = qMax(m_favButton->sizeHint().height(), m_clearButton->sizeHint().height());
      setMinimumSize(minimumSizeHint().width() +
                     m_favButton->sizeHint().width() +
                     m_clearButton->sizeHint().width(),
                     qMax(minimumSizeHint().height(), minIconHeight));

      connect(m_clearButton, &QToolButton::clicked, this, &QLineEdit::clear);
      connect(this, &QLineEdit::textChanged, [this](const QString &text) {
          m_clearButton->setVisible(!text.isEmpty() && !isReadOnly());
      });
  }

  QUrl UrlLineEdit::url() const
  {
      return QUrl::fromUserInput(text());
  }

  void UrlLineEdit::setUrl(const QUrl &url)
  {
      setText(url.toString());
      setCursorPosition(0);
  }

  void UrlLineEdit::setFavIcon(const QIcon &icon)
  {
      QPixmap pixmap = icon.pixmap(16, 16);
      m_favButton->setIcon(pixmap);
  }

  void UrlLineEdit::resizeEvent(QResizeEvent *event)
  {
      QLineEdit::resizeEvent(event);
      QSize clearButtonSize = m_clearButton->sizeHint();
      m_clearButton->move(rect().right() - clearButtonSize.width(),
                          (rect().bottom() - clearButtonSize.height()) / 2);
      m_favButton->move(rect().left(), (rect().bottom() - m_favButton->sizeHint().height()) / 2);
  }