commit 02bce7e239bf6bbd35c2d61a6306abd7ab820c2c
from: Stefan Sperling <stsp@stsp.name>
via: Thomas Adam <thomas@xteddy.org>
date: Thu Jun 23 14:09:34 2022 UTC

fix horizontal scrolling bug in the blame view

ok op@, jamsek

commit - 84227eb1cd472aee3db29eed97367db85b2480e9
commit + 02bce7e239bf6bbd35c2d61a6306abd7ab820c2c
blob - 3b27329a02abb5e83fe928c5c27ec186ccc0d01e
blob + 316c79d23a88ac31766f9199ae4d7ee7295bbc4f
--- tog/tog.c
+++ tog/tog.c
@@ -4199,7 +4199,7 @@ draw_blame(struct tog_view *view)
 	struct tog_blame *blame = &s->blame;
 	regmatch_t *regmatch = &view->regmatch;
 	const struct got_error *err;
-	int lineno = 0, nprinted = 0;
+	int lineno = 0, nprinted = 0, i;
 	char *line = NULL;
 	size_t linesize = 0;
 	ssize_t linelen;
@@ -4341,14 +4341,18 @@ draw_blame(struct tog_view *view)
 		} else {
 			err = format_line(&wline, &width, line,
 			    view->x + view->ncols - 9, 9, 1);
-			if (!err && view->x < width - 1) {
-				waddwstr(view->window, wline + view->x);
-				width += 9;
+			if (err) {
+				free(line);
+				return err;
+			}
+			if (view->x < width) {
+				waddwstr(view->window, wline + view->x);
+				for (i = 0; i < view->x; i++)
+					width -= wcwidth(wline[i]);
 			}
+			width += 9;
 			free(wline);
 			wline = NULL;
-			if (err)
-				return err;
 		}
 
 		if (width <= view->ncols - 1)