From c1ffd71e25ac1074dc1ff27bb33619c35e7cf6d9 Mon Sep 17 00:00:00 2001
From: Antoni Sawicki <as@tenoware.com>
Date: Tue, 2 Jul 2024 02:24:01 -0700
Subject: [PATCH] use resize.Thumbnail mode instead of calculating size

---
 txt.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/txt.go b/txt.go
index 8f57cd3..8695675 100644
--- a/txt.go
+++ b/txt.go
@@ -194,9 +194,7 @@ func smallGif(src []byte) ([]byte, error) {
 	if err != nil {
 		return nil, fmt.Errorf("image decode problem: %v", err)
 	}
-	if img.Bounds().Max.X-img.Bounds().Min.X > *txtImgSize { // this should come from the form
-		img = resize.Resize(uint(*txtImgSize), 0, img, resize.NearestNeighbor)
-	}
+	img = resize.Thumbnail(uint(*txtImgSize), uint(*txtImgSize), img, resize.NearestNeighbor)
 	var gifBuf bytes.Buffer
 	err = gif.Encode(&gifBuf, gifPalette(img, 216), &gif.Options{})
 	if err != nil {