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transmission/qt/FileTreeModel.h
2022-09-08 18:26:18 -05:00

101 lines
3.1 KiB
C++

// This file Copyright © 2009-2022 Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#pragma once
#include <cstdint> // uint64_t
#include <map>
#include <memory>
#include <QAbstractItemModel>
#include <QSet>
#include <libtransmission/tr-macros.h>
class FileTreeItem;
class FileTreeModel final : public QAbstractItemModel
{
Q_OBJECT
TR_DISABLE_COPY_MOVE(FileTreeModel)
public:
enum
{
COL_NAME,
COL_SIZE,
COL_PROGRESS,
COL_WANTED,
COL_PRIORITY,
//
NUM_COLUMNS
};
enum Role
{
SortRole = Qt::UserRole,
FileIndexRole,
WantedRole,
CompleteRole
};
FileTreeModel(QObject* parent = nullptr, bool is_editable = true);
~FileTreeModel() override;
void setEditable(bool editable);
void clear();
void addFile(
int index,
QString const& filename,
bool wanted,
int priority,
uint64_t size,
uint64_t have,
bool update_fields);
bool openFile(QModelIndex const& index);
void twiddleWanted(QModelIndexList const& indices);
void twiddlePriority(QModelIndexList const& indices);
void setWanted(QModelIndexList const& indices, bool wanted);
void setPriority(QModelIndexList const& indices, int priority);
QModelIndex parent(QModelIndex const& child, int column) const;
// QAbstractItemModel
QVariant data(QModelIndex const& index, int role = Qt::DisplayRole) const override;
Qt::ItemFlags flags(QModelIndex const& index) const override;
QVariant headerData(int column, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
QModelIndex index(int row, int column, QModelIndex const& parent = {}) const override;
QModelIndex parent(QModelIndex const& child) const override;
int rowCount(QModelIndex const& parent = {}) const override;
int columnCount(QModelIndex const& parent = {}) const override;
bool setData(QModelIndex const& index, QVariant const& value, int role = Qt::EditRole) override;
signals:
void priorityChanged(QSet<int> const& file_indices, int);
void wantedChanged(QSet<int> const& file_indices, bool);
void pathEdited(QString const& oldpath, QString const& new_name);
void openRequested(QString const& path);
private:
void clearSubtree(QModelIndex const&);
QModelIndex indexOf(FileTreeItem*, int column) const;
void emitParentsChanged(
QModelIndex const&,
int first_column,
int last_column,
QSet<QModelIndex>* visited_parent_indices = nullptr);
void emitSubtreeChanged(QModelIndex const&, int first_column, int last_column);
FileTreeItem* findItemForFileIndex(int file_index) const;
FileTreeItem* itemFromIndex(QModelIndex const&) const;
QModelIndexList getOrphanIndices(QModelIndexList const& indices) const;
std::map<int, FileTreeItem*> index_cache_;
std::unique_ptr<FileTreeItem> root_item_;
bool is_editable_ = {};
};