De-inline QFileSystemModel::fileInfo() and implement it efficiently

De-inline the method, and return the file info that's already being
cached by the model.

This is ok to do in a minor release, as apps compiled against an older
version of Qt will simply continue to use the less efficient
implementation.

Change-Id: I164c7961a8cf97447638af316512326442767dd8
Task-number: QTBUG-30902
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/widgets/dialogs/qfilesystemmodel_p.h b/src/widgets/dialogs/qfilesystemmodel_p.h
index 57fb457071..a35c50bfc7 100644
--- a/src/widgets/dialogs/qfilesystemmodel_p.h
+++ b/src/widgets/dialogs/qfilesystemmodel_p.h
@@ -107,6 +107,7 @@ public:
                 return true;
             return false;
         }
+        inline QFileInfo fileInfo() const { if (info) return info->fileInfo(); return QFileInfo(); }
         inline bool isFile() const { if (info) return info->isFile(); return true; }
         inline bool isSystem() const { if (info) return info->isSystem(); return true; }
         inline bool isHidden() const { if (info) return info->isHidden(); return false; }