From 5ffa9dfdd46038021acbd979eca1c0326ab86ab2 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Tue, 29 Jan 2019 22:20:34 +0000
Subject: Don't enable the export OK button if we change format but have still
 not set an output file.

---
 src/wx/export_dialog.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wx/export_dialog.cc b/src/wx/export_dialog.cc
index 9f6207e66..4661e5468 100644
--- a/src/wx/export_dialog.cc
+++ b/src/wx/export_dialog.cc
@@ -101,5 +101,5 @@ void
 ExportDialog::file_changed ()
 {
 	wxButton* ok = dynamic_cast<wxButton *> (FindWindowById (wxID_OK, this));
-	ok->Enable (true);
+	ok->Enable (_file->GetPath().Length() > 0);
 }
-- 
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