From e04ddde0fe89b8df6667491710ba565506a6e0c8 Mon Sep 17 00:00:00 2001
From: Andreas M Arnold <andreas.arnold@nih.gov>
Date: Wed, 14 Feb 2024 21:23:56 -0500
Subject: [PATCH] Add txt file filter for saving output file (#90)

Closes #89, preventing images from being overwritten by the affine
parameters, by:

- changing the label of the file selection box to make it clearer that
it's for saving affine parameters, and
- adding a file filter to the file selection widget, so it only shows
.txt files.
---
 src/affinder/affinder.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/affinder/affinder.py b/src/affinder/affinder.py
index 798e07a..4da9bb5 100644
--- a/src/affinder/affinder.py
+++ b/src/affinder/affinder.py
@@ -129,7 +129,7 @@ def _on_affinder_main_init(widget):
         widget_init=_on_affinder_main_init,
         call_button='Start',
         layout='vertical',
-        output={'mode': 'w'},
+        output={'mode': 'w', 'label': 'Save transformation as', 'filter': '*.txt'},
         viewer={'visible': False, 'label': ' '},
         delete_pts={
                 'label':