108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef PLAYLISTLISTMODEL_H
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#define PLAYLISTLISTMODEL_H
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#include "config.h"
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#include <QObject>
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#include <QStandardItemModel>
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#include <QMap>
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#include <QIcon>
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#include <QVariant>
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#include <QString>
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class QMimeData;
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class QModelIndex;
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class PlaylistListModel : public QStandardItemModel {
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Q_OBJECT
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public:
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explicit PlaylistListModel(QObject *parent = nullptr);
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enum Types {
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Type_Folder,
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Type_Playlist
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};
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enum Roles {
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Role_Type = Qt::UserRole,
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Role_PlaylistId
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};
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bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
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// These icons will be used for newly created playlists and folders.
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// The caller will need to set these icons on existing items if there are any.
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void SetIcons(const QIcon &playlist_icon, const QIcon &folder_icon);
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const QIcon &playlist_icon() const { return playlist_icon_; }
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const QIcon &folder_icon() const { return folder_icon_; }
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// Walks from the given item to the root, returning the / separated path of
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// all the parent folders. The path includes this item if it is a folder.
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static QString ItemPath(const QStandardItem *item);
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// Finds the playlist with the given ID, returns 0 if it doesn't exist.
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QStandardItem *PlaylistById(const int id) const;
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// Finds the folder with the given path, creating it (and its parents) if they
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// do not exist. Returns invisibleRootItem() if path is empty.
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QStandardItem *FolderByPath(const QString &path);
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// Returns a new folder item with the given name. The item isn't added to
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// the model yet.
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QStandardItem *NewFolder(const QString &name) const;
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// Returns a new playlist item with the given name and ID. The item isn't
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// added to the model yet.
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QStandardItem *NewPlaylist(const QString &name, const int id) const;
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// QStandardItemModel
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bool setData(const QModelIndex &idx, const QVariant &value, int role) override;
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signals:
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void PlaylistPathChanged(const int id, const QString &new_path);
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void PlaylistRenamed(const int id, const QString &new_name);
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private slots:
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void RowsChanged(const QModelIndex &begin, const QModelIndex &end);
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void RowsAboutToBeRemoved(const QModelIndex &parent, const int start, const int end);
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void RowsInserted(const QModelIndex &parent, const int start, const int end);
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private:
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void AddRowMappings(const QModelIndex &begin, const QModelIndex &end);
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void AddRowItem(QStandardItem *item, const QString &parent_path);
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void UpdatePathsRecursive(const QModelIndex &parent);
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private:
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bool dropping_rows_;
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QIcon playlist_icon_;
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QIcon folder_icon_;
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QMap<int, QStandardItem*> playlists_by_id_;
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QMap<QString, QStandardItem*> folders_by_path_;
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};
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#endif // PLAYLISTLISTMODEL_H
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