From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Thu, 24 Nov 2022 15:01:51 +0000 (+0100)
Subject: avoid overlapping backtitle in whiptail
X-Git-Tag: r0-52-23~6
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=73bb4086e366fd5375556244bf154ca4c316a11d;p=thirdparty%2Fnewt.git

avoid overlapping backtitle in whiptail

If using automatic height or width, decrease the height by one if the
backtitle would overlap the window.
---

diff --git a/whiptail.c b/whiptail.c
index 0dd60a7..03a9c9b 100644
--- a/whiptail.c
+++ b/whiptail.c
@@ -523,9 +523,16 @@ int main(int argc, const char ** argv) {
 
     cleanNewlines(text);
 
-    if (height <= 0 || width <= 0 || listHeight <= 0)
+    if (height <= 0 || width <= 0 || listHeight <= 0) {
 	guessSize(&height, &width, &listHeight, mode, &flags, fullButtons,
 		 title, text, optCon);
+	if (!topLeft && backtitle && SLtt_Screen_Rows > 10 &&
+	    height + 1 == SLtt_Screen_Rows &&
+	    _newt_wstrlen(backtitle, -1) > (SLtt_Screen_Cols - width) / 2) {
+	    height -= 1;
+	    listHeight -= 1;
+	}
+    }
 
     width -= 2;
     height -= 2;