1 files changed, 18 insertions, 0 deletions
diff --git a/fswidget.cpp b/fswidget.cpp
index 75ecd28..c3753b1 100644
--- a/fswidget.cpp
+++ b/fswidget.cpp
@@ -160,6 +160,7 @@ void FSWidget::setupWidget(){
     mProxy->setSourceModel(mModel);
     mFileView->setModel(mProxy);
     mFileView->sortByColumn(0, Qt::AscendingOrder);
+    connect(mFileView->selectionModel(), &QItemSelectionModel::selectionChanged, this, &FSWidget::calculateSelectionChanged);
 
     mFileView->addActions(QList<QAction*>() << playSelectedA << playRepeatMA << mPlayWithA << Helper::createSeparator(this) << backA << forwardA << Helper::createSeparator(this) << refreshA << deleteFilesA << Helper::createSeparator(this) << archiveMovieA << archivePicsA << unpackA << previewA << selectFilterA << unselectAllA);
 
@@ -564,3 +565,20 @@ void FSWidget::selectFilter(){
     }
 
 }
+
+void FSWidget::calculateSelectionChanged(){
+    QModelIndexList selected = mFileView->selectionModel()->selectedRows();
+    if(selected.isEmpty()){
+        emit selectionChanged(0, 0, 0);
+        return;
+    }
+    int count = 0;
+    qint64 duration = 0;
+    qint64 size = 0;
+    for(const QModelIndex &idx : selected){
+        ++count;
+        duration += idx.data(DurationRole).toLongLong();
+        size += idx.data(SizeRole).toLongLong();
+    }
+    emit selectionChanged(count, size, duration);
+}