Fix execution log lines selection and copying

src/loglistwidget.cpp

@@ -0,0 +1,89 @@
+/*
+ * Bittorrent Client using Qt4 and libtorrent.
+ * Copyright (C) 2011  Christophe Dumez
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * Contact : chris@qbittorrent.org
+ */
+#include <QKeyEvent>
+#include <QApplication>
+#include <QClipboard>
+#include <QListWidgetItem>
+#include <QLabel>
+#include <QRegExp>
+#include <QAction>
+#include "loglistwidget.h"
+#include "iconprovider.h"
+
+LogListWidget::LogListWidget(int max_lines, QWidget *parent) :
+  QListWidget(parent),
+  m_maxLines(max_lines)
+{
+  // Allow multiple selections
+  setSelectionMode(QAbstractItemView::ExtendedSelection);
+  // Context menu
+  QAction *copyAct = new QAction(IconProvider::instance()->getIcon("edit-copy"), tr("Copy"), this);
+  connect(copyAct, SIGNAL(triggered()), SLOT(copySelection()));
+  addAction(copyAct);
+  setContextMenuPolicy(Qt::ActionsContextMenu);
+}
+
+void LogListWidget::keyPressEvent(QKeyEvent *event)
+{
+  if (event->matches(QKeySequence::Copy)) {
+    copySelection();
+    return;
+  }
+  if (event->matches(QKeySequence::SelectAll)) {
+    selectAll();
+    return;
+  }
+}
+
+void LogListWidget::appendLine(const QString &line)
+{
+  QListWidgetItem *item = new QListWidgetItem(this);
+  // We need to use QLabel here to support rich text
+  QLabel *lbl = new QLabel(line);
+  lbl->setContentsMargins(4, 2, 4, 2);
+  item->setSizeHint(lbl->sizeHint());
+  insertItem(0, item);
+  setItemWidget(item, lbl);
+  const int nbLines = count();
+  // Limit log size
+  if(nbLines > m_maxLines)
+    delete takeItem(nbLines - 1);
+}
+
+void LogListWidget::copySelection()
+{
+  static QRegExp html_tag("<[^>]+>");
+  QList<QListWidgetItem*> items = selectedItems();
+  QStringList strings;
+  foreach(QListWidgetItem* it, items)
+    strings << static_cast<QLabel*>(itemWidget(it))->text().replace(html_tag, "");
+
+  QApplication::clipboard()->setText(strings.join("\n"));
+}