WM: Remove ASCII members from wmEvent & GHOST_TEventKeyData

The `ascii` member was only kept for historic reason as some platforms
didn't support utf8 when it was first introduced.

Remove the `ascii` struct members since many checks used this as a
fall-back for utf8_buf not being set which isn't needed.
There are a few cases where it's convenient to access the ASCII value
of an event (or nil) so a function has been added to do that.

*Details*

- WM_event_utf8_to_ascii() has been added for the few cases an events
  ASCII value needs to be accessed, this just avoids having to do
  multi-byte character checks in-line.

- RNA Event.ascii remains, using utf8_buf[0] for single byte characters.

- GHOST_TEventKeyData.ascii has been removed.

- To avoid regressions non-ASCII Latin1 characters from GHOST are
  converted into multi-byte UTF8, when building X11 without
  XInput & X_HAVE_UTF8_STRING it seems like could still occur.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/editors/curve/editfont.c b/source/blender/editors/curve/editfont.c
index 611dbb2e80c..33e3837c9d4 100644
--- a/source/blender/editors/curve/editfont.c
+++ b/source/blender/editors/curve/editfont.c
@@ -1639,7 +1639,7 @@ static int insert_text_invoke(bContext *C, wmOperator *op, const wmEvent *event)
   Curve *cu = obedit->data;
   EditFont *ef = cu->editfont;
   static int accentcode = 0;
-  uintptr_t ascii = event->ascii;
+  uintptr_t ascii = WM_event_utf8_to_ascii(event);
   const bool alt = event->modifier & KM_ALT;
   const bool shift = event->modifier & KM_SHIFT;
   const bool ctrl = event->modifier & KM_CTRL;