Read JSON from ffprobe

Use JSON output from ffprobe instead of string parsing to get some kind
of type safety.

For doing that, some changes were needed in FileView: Use delegates for
displaying Duration and Bitrate instead of mangling output in
Qt::Displayrole.

To reuse code, move all delegates from the new Archive to a separate
file.

And, of course, the initial objective: Show the accumulated size and
duration of selected files in the status bar from the experimental
archive.

1 files changed, 5 insertions, 0 deletions

diff --git a/archivecontroller.h b/archivecontroller.h
index 750b017..4f24973 100644
--- a/archivecontroller.h
+++ b/archivecontroller.h
@@ -45,6 +45,7 @@ class ArchiveController : public QObject {
 
     public slots:
         void treeSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
+        void fileSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
         void playSelectedFiles();
         void editQuality();
         void editDvdNo();
@@ -56,6 +57,10 @@ class ArchiveController : public QObject {
     private slots:
         void fileDoubleClicked(const QModelIndex &idx);
 
+    signals:
+        void sizeChanged(qint64 newSize);
+        void durationChanged(qint64 newDuration, bool maybeMore);
+
     private:
         QModelIndexList mapToSource(const QSortFilterProxyModel *proxy, const QModelIndexList idxs) const;
         ArchiveView *mArchiveView;