[vlc-devel] [PATCH 01/23] qt: add 'duration' property to playlist model to get total duration

[Fatih Uzunoglu]

---
 modules/gui/qt/playlist/playlist_model.cpp   | 27 ++++++++++++++++++++
 modules/gui/qt/playlist/playlist_model.hpp   |  3 +++
 modules/gui/qt/playlist/playlist_model_p.hpp |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/modules/gui/qt/playlist/playlist_model.cpp b/modules/gui/qt/playlist/playlist_model.cpp
index 1b571ae2ae..7bb5960fc2 100644
--- a/modules/gui/qt/playlist/playlist_model.cpp
+++ b/modules/gui/qt/playlist/playlist_model.cpp
@@ -179,6 +179,15 @@ void PlaylistListModelPrivate::onItemsReset(const QVector<PlaylistItem>& newCont
     m_items = newContent;
     q->endResetModel();
 
+    m_duration = VLC_TICK_FROM_SEC(0);
+    if (m_items.size())
+    {
+        for(const auto& i : m_items)
+        {
+            m_duration += i.getDuration();
+        }
+    }
+
     emit q->countChanged(m_items.size());
     emit q->selectedCountChanged();
 }
@@ -192,6 +201,11 @@ void PlaylistListModelPrivate::onItemsAdded(const QVector<PlaylistItem>& added,
     std::move(added.cbegin(), added.cend(), m_items.begin() + index);
     q->endInsertRows();
 
+    for(const auto& i : added)
+    {
+        m_duration += i.getDuration();
+    }
+
     emit q->countChanged(m_items.size());
 }
 
@@ -220,6 +234,12 @@ void PlaylistListModelPrivate::onItemsMoved(size_t index, size_t count, size_t t
 void PlaylistListModelPrivate::onItemsRemoved(size_t index, size_t count)
 {
     Q_Q(PlaylistListModel);
+
+    for(size_t i = index; i < count; ++i)
+    {
+        m_duration -= m_items.at(i).getDuration();
+    }
+
     q->beginRemoveRows({}, index, index + count - 1);
     m_items.remove(index, count);
     q->endRemoveRows();
@@ -298,6 +318,13 @@ PlaylistListModel::rowCount(const QModelIndex &parent) const
     return d->m_items.size();
 }
 
+VLCTick
+PlaylistListModel::getDuration() const
+{
+    Q_D(const PlaylistListModel);
+    return VLCTick(d->m_duration);
+}
+
 const PlaylistItem &
 PlaylistListModel::itemAt(int index) const
 {
diff --git a/modules/gui/qt/playlist/playlist_model.hpp b/modules/gui/qt/playlist/playlist_model.hpp
index c0b775d0f2..9ff02651cc 100644
--- a/modules/gui/qt/playlist/playlist_model.hpp
+++ b/modules/gui/qt/playlist/playlist_model.hpp
@@ -28,6 +28,7 @@
 #include "playlist_common.hpp"
 #include "playlist_item.hpp"
 #include "util/selectable_list_model.hpp"
+#include "util/vlctick.hpp"
 
 namespace vlc {
 namespace playlist {
@@ -39,6 +40,7 @@ class PlaylistListModel : public SelectableListModel
     Q_PROPERTY(PlaylistPtr playlistId READ getPlaylistId WRITE setPlaylistId NOTIFY playlistIdChanged)
     Q_PROPERTY(int currentIndex READ getCurrentIndex NOTIFY currentIndexChanged)
     Q_PROPERTY(int count READ rowCount NOTIFY countChanged)
+    Q_PROPERTY(VLCTick duration READ getDuration NOTIFY countChanged)
 
 public:
     enum Roles
@@ -58,6 +60,7 @@ public:
 
     QHash<int, QByteArray> roleNames() const override;
     int rowCount(const QModelIndex &parent = {}) const override;
+    VLCTick getDuration() const;
     QVariant data(const QModelIndex &index,
                   int role = Qt::DisplayRole) const override;
 
diff --git a/modules/gui/qt/playlist/playlist_model_p.hpp b/modules/gui/qt/playlist/playlist_model_p.hpp
index 315dc1bdde..8164efff4c 100644
--- a/modules/gui/qt/playlist/playlist_model_p.hpp
+++ b/modules/gui/qt/playlist/playlist_model_p.hpp
@@ -63,6 +63,8 @@ public:
     /* access only from the UI thread */
     QVector<PlaylistItem> m_items;
     ssize_t m_current = -1;
+
+    vlc_tick_t m_duration = 0;
 };
 
 } //namespace playlist
-- 
2.25.1