On Windows, trailing spaces in a filename are silently ignored, so we need to strip it before trying to open a file with it. Otherwise it ends up being stripped later and in a case like " ." it will end up causing Qt to think that a folder exists when it does not. [ChangeLog][Platform Specific Changes][Windows][QtWidgets][QFileDialog] Handled the case of having trailing spaces in a filename correctly so if the filename ends up being empty that the parent path is used instead. Change-Id: I6500cc3a44746bf4a65e73bcfb63265a0a97c8a3 Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com> Reviewed-by: Marc Mutz <marc.mutz@kdab.com>