Implement cache for FileWidget

Some data-gathering is quite expensive and requires a QProcess, like
getting the duration, so cache it in memory using QCache. Once the cache
is filled, the UI is much snappier.

This simplifies gatherData() a bit. It's still quite a long function,
but now it doesn't create the QStandardItems any more. I moved it to a
separate function.

1 files changed, 19 insertions, 0 deletions

diff --git a/cachedfiledata.h b/cachedfiledata.h
new file mode 100644
index 0000000..9b5fe48
--- /dev/null
+++ b/cachedfiledata.h
@@ -0,0 +1,19 @@
+#ifndef CACHEDFILEDATA_H
+#define CACHEDFILEDATA_H
+
+#include <QString>
+
+struct CachedFileData {
+    explicit CachedFileData();
+    QString fullPath;
+    QString name;
+    QString mimeType;
+    QString duration;
+    QString md5Sum;
+    qint64 seconds;
+    qint64 size;
+    int attr;
+    bool copied;
+};
+
+#endif // CACHEDFILEDATA_H