File indexing completed on 2024-04-28 15:40:11

 // SPDX-FileCopyrightText: 2003-2010 Jesper K. Pedersen <blackie@kde.org>
 // SPDX-FileCopyrightText: 2021-2022 Johannes Zarl-Zierl <johannes@zarl-zierl.at>
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "BreadcrumbViewer.h"
 
 #include <QTextDocument>
 
 void MainWindow::BreadcrumbViewer::setBreadcrumbs(const Browser::BreadcrumbList &list)
 {
     m_activeCrumbs = list.latest();
     updateText();
 }
 
 void MainWindow::BreadcrumbViewer::linkClicked(const QString &link)
 {
     Q_EMIT widenToBreadcrumb(m_activeCrumbs[link.toInt()]);
 }
 
 MainWindow::BreadcrumbViewer::BreadcrumbViewer()
 {
     connect(this, &BreadcrumbViewer::linkActivated, this, &BreadcrumbViewer::linkClicked);
 }
 
 /**
  * Format the text with hyperlinks. The tricky part is to handle the situation where all the text doesn't fit in.
  * The by far best solution would be to compress at a letter level, but this code is really only used in the rare
  * situation where the user chooses a very long path, as his window usually is somewhat wide.
  */
 void MainWindow::BreadcrumbViewer::updateText()
 {
     if (m_activeCrumbs.isEmpty())
         return;
 
     QStringList htmlList;
 
     for (int i = 0; i < m_activeCrumbs.count() - 1; ++i)
         htmlList.append(QString::fromLatin1("<a href=\"%1\">%2</a>").arg(i).arg(m_activeCrumbs[i].text()));
     if (!m_activeCrumbs[m_activeCrumbs.count() - 1].isView())
         htmlList.append(m_activeCrumbs[m_activeCrumbs.count() - 1].text());
 
     QTextDocument doc;
     doc.setDefaultFont(font());
 
     QString res = htmlList.last();
     const QString ellipses = QChar(0x2026) + QString::fromLatin1(" > ");
     for (int i = htmlList.count() - 2; i >= 0; --i) {
         // If we can't fit it in, then add ellipses
         const QString tmp = htmlList[i] + QString::fromLatin1(" > ") + res;
         doc.setHtml(tmp);
         if (doc.size().width() > width()) {
             res = ellipses + res;
             break;
         }
 
         // now check that we can fit in ellipses if this was the last token
         const QString tmp2 = ellipses + tmp;
         doc.setHtml(tmp2);
         if (doc.size().width() > width() && i != 0) {
             // Nope, so better stop here
             res = ellipses + res;
             break;
         }
 
         res = tmp;
     }
 
     setText(res);
 }
 
 void MainWindow::BreadcrumbViewer::resizeEvent(QResizeEvent *event)
 {
     QLabel::resizeEvent(event);
     updateText();
 }
 
 QSize MainWindow::BreadcrumbViewer::minimumSizeHint() const
 {
     return QSize(100, QLabel::minimumSizeHint().height());
 }
 // vi:expandtab:tabstop=4 shiftwidth=4:
 
 #include "moc_BreadcrumbViewer.cpp"