src/gui/torrentcontentfiltermodel.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2022  Vladimir Golovnev <glassez@yandex.ru>
   4  * Copyright (C) 2006-2012  Christophe Dumez <chris@qbittorrent.org>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  *
  20  * In addition, as a special exception, the copyright holders give permission to
  21  * link this program with the OpenSSL project's "OpenSSL" library (or with
  22  * modified versions of it that use the same license as the "OpenSSL" library),
  23  * and distribute the linked executables. You must obey the GNU General Public
  24  * License in all respects for all of the code used other than "OpenSSL".  If you
  25  * modify file(s), you may extend this exception to your version of the file(s),
  26  * but you are not obligated to do so. If you do not wish to do so, delete this
  27  * exception statement from your version.
  28  */
  29
  30 #include "torrentcontentfiltermodel.h"
  31
  32 #include "torrentcontentmodel.h"
  33
  34 TorrentContentFilterModel::TorrentContentFilterModel(QObject *parent)
  35     : QSortFilterProxyModel(parent)
  36 {
  37     // Filter settings
  38     setFilterKeyColumn(TorrentContentModelItem::COL_NAME);
  39     setFilterRole(TorrentContentModel::UnderlyingDataRole);
  40     setDynamicSortFilter(true);
  41     setSortCaseSensitivity(Qt::CaseInsensitive);
  42     setSortRole(TorrentContentModel::UnderlyingDataRole);
  43 }
  44
  45 void TorrentContentFilterModel::setSourceModel(TorrentContentModel *model)
  46 {
  47     m_model = model;
  48     QSortFilterProxyModel::setSourceModel(m_model);
  49 }
  50
  51 TorrentContentModelItem::ItemType TorrentContentFilterModel::itemType(const QModelIndex &index) const
  52 {
  53     return m_model->itemType(mapToSource(index));
  54 }
  55
  56 int TorrentContentFilterModel::getFileIndex(const QModelIndex &index) const
  57 {
  58     return m_model->getFileIndex(mapToSource(index));
  59 }
  60
  61 QModelIndex TorrentContentFilterModel::parent(const QModelIndex &child) const
  62 {
  63     if (!child.isValid())
  64         return {};
  65
  66     QModelIndex sourceParent = m_model->parent(mapToSource(child));
  67     if (!sourceParent.isValid())
  68         return {};
  69
  70     return mapFromSource(sourceParent);
  71 }
  72
  73 bool TorrentContentFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
  74 {
  75     if (m_model->itemType(m_model->index(sourceRow, 0, sourceParent)) == TorrentContentModelItem::FolderType)
  76     {
  77         // accept folders if they have at least one filtered item
  78         return hasFiltered(m_model->index(sourceRow, 0, sourceParent));
  79     }
  80
  81     return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
  82 }
  83
  84 bool TorrentContentFilterModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
  85 {
  86     switch (sortColumn())
  87     {
  88     case TorrentContentModelItem::COL_NAME:
  89         {
  90             const TorrentContentModelItem::ItemType leftType = m_model->itemType(m_model->index(left.row(), 0, left.parent()));
  91             const TorrentContentModelItem::ItemType rightType = m_model->itemType(m_model->index(right.row(), 0, right.parent()));
  92
  93             if (leftType == rightType)
  94             {
  95                 const QString strL = left.data().toString();
  96                 const QString strR = right.data().toString();
  97                 return m_naturalLessThan(strL, strR);
  98             }
  99
 100             if ((leftType == TorrentContentModelItem::FolderType) && (sortOrder() == Qt::AscendingOrder))
 101             {
 102                 return true;
 103             }
 104
 105             return false;
 106         }
 107
 108     default:
 109         return QSortFilterProxyModel::lessThan(left, right);
 110     };
 111 }
 112
 113 bool TorrentContentFilterModel::hasFiltered(const QModelIndex &folder) const
 114 {
 115     // this should be called only with folders
 116     // check if the folder name itself matches the filter string
 117     QString name = folder.data().toString();
 118     if (name.contains(filterRegularExpression()))
 119         return true;
 120
 121     for (int child = 0; child < m_model->rowCount(folder); ++child)
 122     {
 123         QModelIndex childIndex = m_model->index(child, 0, folder);
 124         if (m_model->hasChildren(childIndex))
 125         {
 126             if (hasFiltered(childIndex))
 127                 return true;
 128
 129             continue;
 130         }
 131
 132         name = childIndex.data().toString();
 133         if (name.contains(filterRegularExpression()))
 134             return true;
 135     }
 136
 137     return false;
 138 }