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50 | |
51 | #include "playlistmodel.h" |
52 | |
53 | #include <QFileInfo> |
54 | #include <QUrl> |
55 | #include <QMediaPlaylist> |
56 | |
57 | PlaylistModel::PlaylistModel(QObject *parent) |
58 | : QAbstractItemModel(parent) |
59 | { |
60 | } |
61 | |
62 | PlaylistModel::~PlaylistModel() |
63 | { |
64 | } |
65 | |
66 | int PlaylistModel::rowCount(const QModelIndex &parent) const |
67 | { |
68 | return m_playlist && !parent.isValid() ? m_playlist->mediaCount() : 0; |
69 | } |
70 | |
71 | int PlaylistModel::columnCount(const QModelIndex &parent) const |
72 | { |
73 | return !parent.isValid() ? ColumnCount : 0; |
74 | } |
75 | |
76 | QModelIndex PlaylistModel::index(int row, int column, const QModelIndex &parent) const |
77 | { |
78 | return m_playlist && !parent.isValid() |
79 | && row >= 0 && row < m_playlist->mediaCount() |
80 | && column >= 0 && column < ColumnCount |
81 | ? createIndex(arow: row, acolumn: column) |
82 | : QModelIndex(); |
83 | } |
84 | |
85 | QModelIndex PlaylistModel::parent(const QModelIndex &child) const |
86 | { |
87 | Q_UNUSED(child); |
88 | |
89 | return QModelIndex(); |
90 | } |
91 | |
92 | QVariant PlaylistModel::data(const QModelIndex &index, int role) const |
93 | { |
94 | if (index.isValid() && role == Qt::DisplayRole) { |
95 | QVariant value = m_data[index]; |
96 | if (!value.isValid() && index.column() == Title) { |
97 | QUrl location = m_playlist->media(index: index.row()).request().url(); |
98 | return QFileInfo(location.path()).fileName(); |
99 | } |
100 | |
101 | return value; |
102 | } |
103 | return QVariant(); |
104 | } |
105 | |
106 | QMediaPlaylist *PlaylistModel::playlist() const |
107 | { |
108 | return m_playlist.data(); |
109 | } |
110 | |
111 | void PlaylistModel::setPlaylist(QMediaPlaylist *playlist) |
112 | { |
113 | if (m_playlist) { |
114 | disconnect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaAboutToBeInserted, receiver: this, slot: &PlaylistModel::beginInsertItems); |
115 | disconnect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaInserted, receiver: this, slot: &PlaylistModel::endInsertItems); |
116 | disconnect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaAboutToBeRemoved, receiver: this, slot: &PlaylistModel::beginRemoveItems); |
117 | disconnect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaRemoved, receiver: this, slot: &PlaylistModel::endRemoveItems); |
118 | disconnect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaChanged, receiver: this, slot: &PlaylistModel::changeItems); |
119 | } |
120 | |
121 | beginResetModel(); |
122 | m_playlist.reset(other: playlist); |
123 | |
124 | if (m_playlist) { |
125 | connect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaAboutToBeInserted, receiver: this, slot: &PlaylistModel::beginInsertItems); |
126 | connect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaInserted, receiver: this, slot: &PlaylistModel::endInsertItems); |
127 | connect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaAboutToBeRemoved, receiver: this, slot: &PlaylistModel::beginRemoveItems); |
128 | connect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaRemoved, receiver: this, slot: &PlaylistModel::endRemoveItems); |
129 | connect(sender: m_playlist.data(), signal: &QMediaPlaylist::mediaChanged, receiver: this, slot: &PlaylistModel::changeItems); |
130 | } |
131 | |
132 | endResetModel(); |
133 | } |
134 | |
135 | bool PlaylistModel::setData(const QModelIndex &index, const QVariant &value, int role) |
136 | { |
137 | Q_UNUSED(role); |
138 | m_data[index] = value; |
139 | emit dataChanged(topLeft: index, bottomRight: index); |
140 | return true; |
141 | } |
142 | |
143 | void PlaylistModel::beginInsertItems(int start, int end) |
144 | { |
145 | m_data.clear(); |
146 | beginInsertRows(parent: QModelIndex(), first: start, last: end); |
147 | } |
148 | |
149 | void PlaylistModel::endInsertItems() |
150 | { |
151 | endInsertRows(); |
152 | } |
153 | |
154 | void PlaylistModel::beginRemoveItems(int start, int end) |
155 | { |
156 | m_data.clear(); |
157 | beginRemoveRows(parent: QModelIndex(), first: start, last: end); |
158 | } |
159 | |
160 | void PlaylistModel::endRemoveItems() |
161 | { |
162 | endInsertRows(); |
163 | } |
164 | |
165 | void PlaylistModel::changeItems(int start, int end) |
166 | { |
167 | m_data.clear(); |
168 | emit dataChanged(topLeft: index(row: start,column: 0), bottomRight: index(row: end,column: ColumnCount)); |
169 | } |
170 | |