fix mutually exclusive zsh completion

also filters out --focussed for simplicity.

Author: DogeTheBeast

TODO.md

@@ -14,9 +14,9 @@ Look for any bugs reported downstream or in our github issues and fix them:
 ## Shell completion improvements
 
 - Improve the bash completion script. Currently it's quite rudimentary.
-- Filter out mutually exclusive options in zsh completion. E.g if `-b` is
+- ~~Filter out mutually exclusive options in zsh completion. E.g if `-b` is
   already provided then `--border` should no longer be considered a potential
-  match.
+  match.~~
 - Add some way to install zsh/bash completion scripts. Since the directory where
   completion script go into can vary, we want the user to explicitly set the
   installation directory. E.g via the configure script

etc/zsh-completion/_scrot

@@ -22,9 +22,14 @@ for ln in ${(f)list}; do
         N) ;; # None
     esac
 
+    [[ $lopt == "focussed" ]] && continue
+
     if [[ "${sopt}" = [[:alnum:]]* ]]; then
-        args+=( "-${sopt}${desc}" )
+        args+=( "(-${sopt} --${lopt})-${sopt}${desc}" )
+        args+=( "(-${sopt} --${lopt})--${lopt}${desc}" )
+    else
+        args+=( "--${lopt}${desc}" )
     fi
-    args+=( "--${lopt}${desc}" )
+
 done
 _arguments "${args[@]}"