src/gui/loglistwidget.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2011  Christophe Dumez <chris@qbittorrent.org>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "loglistwidget.h"
  30
  31 #include <QAction>
  32 #include <QApplication>
  33 #include <QClipboard>
  34 #include <QKeyEvent>
  35 #include <QLabel>
  36 #include <QListWidgetItem>
  37 #include <QRegularExpression>
  38
  39 #include "base/global.h"
  40 #include "guiiconprovider.h"
  41
  42 LogListWidget::LogListWidget(int maxLines, const Log::MsgTypes &types, QWidget *parent)
  43     : QListWidget(parent)
  44     , m_maxLines(maxLines)
  45     , m_types(types)
  46 {
  47     // Allow multiple selections
  48     setSelectionMode(QAbstractItemView::ExtendedSelection);
  49     // Context menu
  50     QAction *copyAct = new QAction(GuiIconProvider::instance()->getIcon("edit-copy"), tr("Copy"), this);
  51     QAction *clearAct = new QAction(GuiIconProvider::instance()->getIcon("edit-clear"), tr("Clear"), this);
  52     connect(copyAct, &QAction::triggered, this, &LogListWidget::copySelection);
  53     connect(clearAct, &QAction::triggered, this, &LogListWidget::clear);
  54     addAction(copyAct);
  55     addAction(clearAct);
  56     setContextMenuPolicy(Qt::ActionsContextMenu);
  57 }
  58
  59 void LogListWidget::showMsgTypes(const Log::MsgTypes &types)
  60 {
  61     m_types = types;
  62     for (int i = 0; i < count(); ++i) {
  63         QListWidgetItem *tempItem = item(i);
  64         if (!tempItem) continue;
  65
  66         Log::MsgType itemType = static_cast<Log::MsgType>(tempItem->data(Qt::UserRole).toInt());
  67         setRowHidden(i, !(m_types & itemType));
  68     }
  69 }
  70
  71 void LogListWidget::keyPressEvent(QKeyEvent *event)
  72 {
  73     if (event->matches(QKeySequence::Copy))
  74         copySelection();
  75     else if (event->matches(QKeySequence::SelectAll))
  76         selectAll();
  77 }
  78
  79 void LogListWidget::appendLine(const QString &line, const Log::MsgType &type)
  80 {
  81     auto *item = new QListWidgetItem;
  82     // We need to use QLabel here to support rich text
  83     QLabel *lbl = new QLabel(line);
  84     lbl->setContentsMargins(4, 2, 4, 2);
  85     item->setSizeHint(lbl->sizeHint());
  86     item->setData(Qt::UserRole, type);
  87     insertItem(0, item);
  88     setItemWidget(item, lbl);
  89     setRowHidden(0, !(m_types & type));
  90
  91     const int nbLines = count();
  92     // Limit log size
  93     if (nbLines > m_maxLines)
  94         delete takeItem(nbLines - 1);
  95 }
  96
  97 void LogListWidget::copySelection()
  98 {
  99     static const QRegularExpression htmlTag("<[^>]+>");
 100     QStringList strings;
 101     for (QListWidgetItem* it : asConst(selectedItems()))
 102         strings << static_cast<QLabel*>(itemWidget(it))->text().remove(htmlTag);
 103
 104     QApplication::clipboard()->setText(strings.join('\n'));
 105 }