Hint: always show except lettres (a-z/A-Z)

Some locales have shifted chars likel ç ° ä ö ü which are helpful to be
visible

Signed-off-by: Jean-Pierre Rasquin <[email protected]>

Author: yank555-lu

app/src/main/java/org/pocketworkstation/pckeyboard/Keyboard.java

@@ -638,7 +638,7 @@ public String getHintLabel(boolean wantAscii, boolean wantAll) {
                 hint = "";
                 if (shiftLabel != null && !isSimpleUppercase) {
                     char c = shiftLabel.charAt(0);
-                    if (wantAll || wantAscii && is7BitAscii(c)) {
+                    if (wantAll || wantAscii && isNotAlpha(c)) {
                         hint = Character.toString(c);
                     }
                 }
@@ -664,6 +664,11 @@ private static boolean is7BitAscii(char c) {
             if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) return false;
             return c >= 32 && c < 127;
         }
+
+        private static boolean isNotAlpha(char c) {
+            if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) return false;
+            return true;
+        }
 
         /**
          * Informs the key that it has been pressed, in case it needs to change its appearance or