File indexing completed on 2024-05-12 04:59:21

 /***************************************************************************
  *   Copyright (C) 2007 by Joris Guisson and Ivan Vasic                    *
  *   joris.guisson@gmail.com                                               *
  *   ivasic@gmail.com                                                      *
  *                                                                         *
  *   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.          *
  ***************************************************************************/
 #ifndef KTTORRENTFILETREEMODEL_H
 #define KTTORRENTFILETREEMODEL_H
 
 #include "torrentfilemodel.h"
 #include <util/bitset.h>
 
 class QSortFilterProxyModel;
 
 namespace bt
 {
 class BEncoder;
 class BNode;
 }
 
 namespace kt
 {
 
 /**
  * Model for displaying file trees of a torrent
  * @author Joris Guisson
  */
 class TorrentFileTreeModel : public TorrentFileModel
 {
     Q_OBJECT
 protected:
     struct Node {
         Node *parent;
         bt::TorrentFileInterface *file; // file (0 if this is a directory)
         QString name; // name or directory
         QList<Node *> children; // child dirs
         bt::Uint64 size;
         bt::BitSet chunks;
         bool chunks_set;
         float percentage;
 
         Node(Node *parent, bt::TorrentFileInterface *file, const QString &name, bt::Uint32 total_chunks);
         Node(Node *parent, const QString &name, bt::Uint32 total_chunks);
         ~Node();
 
         void insert(const QString &path, bt::TorrentFileInterface *file, bt::Uint32 num_chunks);
         int row();
         bt::Uint64 fileSize(const bt::TorrentInterface *tc);
         bt::Uint64 bytesToDownload(const bt::TorrentInterface *tc);
         Qt::CheckState checkState(const bt::TorrentInterface *tc) const;
         QString path();
         void fillChunks();
         void updatePercentage(const bt::BitSet &havechunks);
         void initPercentage(const bt::TorrentInterface *tc, const bt::BitSet &havechunks);
 
         void saveExpandedState(const QModelIndex &index, QSortFilterProxyModel *pm, QTreeView *tv, bt::BEncoder *enc);
         void loadExpandedState(const QModelIndex &index, QSortFilterProxyModel *pm, QTreeView *tv, bt::BNode *node);
     };
 
 public:
     TorrentFileTreeModel(bt::TorrentInterface *tc, DeselectMode mode, QObject *parent);
     ~TorrentFileTreeModel() override;
 
     int rowCount(const QModelIndex &parent) const override;
     int columnCount(const QModelIndex &parent) const override;
     QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
     QVariant data(const QModelIndex &index, int role) const override;
     QModelIndex parent(const QModelIndex &index) const override;
     QModelIndex index(int row, int column, const QModelIndex &parent) const override;
     bool setData(const QModelIndex &index, const QVariant &value, int role) override;
     void checkAll() override;
     void uncheckAll() override;
     void invertCheck() override;
     bt::Uint64 bytesToDownload() override;
     QByteArray saveExpandedState(QSortFilterProxyModel *pm, QTreeView *tv) override;
     void loadExpandedState(QSortFilterProxyModel *pm, QTreeView *tv, const QByteArray &state) override;
     bt::TorrentFileInterface *indexToFile(const QModelIndex &idx) override;
     QString dirPath(const QModelIndex &idx) override;
     void changePriority(const QModelIndexList &indexes, bt::Priority newpriority) override;
     void onCodecChange() override;
 
 private:
     void constructTree();
     void invertCheck(const QModelIndex &idx);
     bool setCheckState(const QModelIndex &index, Qt::CheckState state);
     bool setName(const QModelIndex &index, const QString &name);
     void modifyPathOfFiles(Node *n, const QString &path);
 
 protected:
     Node *root;
     bool emit_check_state_change;
 };
 }
 
 #endif