Long live Qt 4.5!

1 files changed, 170 insertions, 0 deletions

diff --git a/examples/network/torrent/addtorrentdialog.cpp b/examples/network/torrent/addtorrentdialog.cpp
new file mode 100644
index 0000000..fb43f59
--- /dev/null
+++ b/examples/network/torrent/addtorrentdialog.cpp
@@ -0,0 +1,170 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "addtorrentdialog.h"
+#include "metainfo.h"
+
+#include <QFile>
+#include <QFileDialog>
+#include <QLineEdit>
+#include <QMetaObject>
+
+static QString stringNumber(qint64 number)
+{
+    QString tmp;
+    if (number > (1024 * 1024 * 1024))
+        tmp.sprintf("%.2fGB", number / (1024.0 * 1024.0 * 1024.0));
+    else if (number > (1024 * 1024))
+        tmp.sprintf("%.2fMB", number / (1024.0 * 1024.0));
+    else if (number > (1024))
+        tmp.sprintf("%.2fKB", number / (1024.0));
+    else
+        tmp.sprintf("%d bytes", int(number));
+    return tmp;
+}
+
+AddTorrentDialog::AddTorrentDialog(QWidget *parent)
+  : QDialog(parent, Qt::Sheet)
+{
+    ui.setupUi(this);
+
+    connect(ui.browseTorrents, SIGNAL(clicked()),
+            this, SLOT(selectTorrent()));
+    connect(ui.browseDestination, SIGNAL(clicked()),
+            this, SLOT(selectDestination()));
+    connect(ui.torrentFile, SIGNAL(textChanged(const QString &)),
+            this, SLOT(setTorrent(const QString &)));
+
+    ui.destinationFolder->setText(destinationDirectory = QDir::current().path());
+    ui.torrentFile->setFocus();
+}
+
+void AddTorrentDialog::selectTorrent()
+{
+    QString fileName = QFileDialog::getOpenFileName(this, tr("Choose a torrent file"),
+                                                    lastDirectory,
+                                                    tr("Torrents (*.torrent);; All files (*.*)"));
+    if (fileName.isEmpty())
+        return;
+    lastDirectory = QFileInfo(fileName).absolutePath();
+    setTorrent(fileName);
+}
+
+void AddTorrentDialog::selectDestination()
+{
+    QString dir = QFileDialog::getExistingDirectory(this, tr("Choose a destination directory"),
+                                                    lastDestinationDirectory);
+    if (dir.isEmpty())
+        return;
+    lastDestinationDirectory = destinationDirectory = dir;
+    ui.destinationFolder->setText(destinationDirectory);
+    enableOkButton();
+}
+
+void AddTorrentDialog::enableOkButton()
+{
+    ui.okButton->setEnabled(!ui.destinationFolder->text().isEmpty()
+                            && !ui.torrentFile->text().isEmpty());
+}
+
+void AddTorrentDialog::setTorrent(const QString &torrentFile)
+{
+    if (torrentFile.isEmpty()) {
+        enableOkButton();
+        return;
+    }
+
+    ui.torrentFile->setText(torrentFile);
+    if (!torrentFile.isEmpty())
+        lastDirectory = QFileInfo(torrentFile).absolutePath();
+
+    if (lastDestinationDirectory.isEmpty())
+        lastDestinationDirectory = lastDirectory;
+    
+    MetaInfo metaInfo;
+    QFile torrent(torrentFile);
+    if (!torrent.open(QFile::ReadOnly) || !metaInfo.parse(torrent.readAll())) {
+        enableOkButton();
+        return;
+    }
+    
+    ui.torrentFile->setText(torrentFile);
+    ui.announceUrl->setText(metaInfo.announceUrl());
+    if (metaInfo.comment().isEmpty())
+        ui.commentLabel->setText("<unknown>");
+    else
+        ui.commentLabel->setText(metaInfo.comment());
+    if (metaInfo.createdBy().isEmpty())
+        ui.creatorLabel->setText("<unknown>");
+    else
+        ui.creatorLabel->setText(metaInfo.createdBy());
+    ui.sizeLabel->setText(stringNumber(metaInfo.totalSize()));
+    if (metaInfo.fileForm() == MetaInfo::SingleFileForm) {
+        ui.torrentContents->setHtml(metaInfo.singleFile().name);
+    } else {
+        QString html;
+        foreach (MetaInfoMultiFile file, metaInfo.multiFiles()) {
+            QString name = metaInfo.name();
+            if (!name.isEmpty()) {
+                html += name;
+                if (!name.endsWith('/'))
+                    html += '/';
+            }
+            html += file.path + "<br>";
+        }
+        ui.torrentContents->setHtml(html);
+    }
+
+    QFileInfo info(torrentFile);
+    ui.destinationFolder->setText(info.absolutePath());
+
+    enableOkButton();
+}
+
+QString AddTorrentDialog::torrentFileName() const
+{
+    return ui.torrentFile->text();
+}
+
+QString AddTorrentDialog::destinationFolder() const
+{
+    return ui.destinationFolder->text();
+}