Render struck-out attribute

Implement crossed-out text with an XftDrawRect call, similar to how
underline is implemented. The line is drawn at 2/3 of the font ascent,
which seems to work nicely in practice.

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/st.c b/st.c
index a69cc9e..3aa8539 100644
--- a/st.c
+++ b/st.c
@@ -3383,6 +3383,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                                 width, 1);
         }
 
+        if(base.mode & ATTR_STRUCK) {
+                XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
+                                width, 1);
+        }
+
         /* Reset clip to none. */
         XftDrawSetClip(xw.draw, 0);
 }