Date: Thu, 05 Jul 2007 14:02:33 -0700

From: Sam Lantinga
Subject: SDL 1.3 keyboard plan

After lots of discussion with Christian, this is what we came up with:

> So, to sum up...
> SDLK_* become the physical keys, starting at > (1<<21)
> We create a macro SDLK_INDEX(X)
> We have two functions SDL_GetLayoutKey(SDLKey) and SDL_GetKeyName()
> SDL_GetLayoutKey maps to UCS4 for printable characters, and SDLK* for
  non-printable characters
> and does so based on the OS's current keyboard layout
> SDL_GetKeyName() handles both SDLK_* and UCS4, converting UCS4 to UTF-8 and
  converting SDLK_* into our names, which are UTF-8 for printable characters.
> WASD folks use SDLK_*, and 'I' folks use SDL_GetLayoutKey(SDLK_*)

Here is the patch he came up with, and his e-mail about it:

Date: Fri, 17 Aug 2007 19:50:28 +0200
From: Christian Walther
Subject: Re: SDL 1.3 keyboard plan

> Sounds great, go ahead and send me a patch.

Here goes! Thanks for having a look. Don't hesitate to comment if
anything does not conform to your ideas.

One caveat: Committing this now may break compilability of some video
drivers - specifically, if they use any of the SDLK_* codes that were
obsoleted and moved into SDL_compat.h. I only tried Cocoa (which did
break, but is already fixed) and X11 (which didn't, but then its key
handling is #iffed out). If that's a problem, it may need to go into
a branch.

  -Christian

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402630

src/events/SDL_keyboard_c.h

@@ -65,6 +65,12 @@ extern void SDL_DelKeyboard(int index);
 /* Clear the state of a keyboard at an index */
 extern void SDL_ResetKeyboard(int index);
 
+/* Set a platform-dependent key name, overriding the default platform-agnostic
+   name. Encoded as UTF-8. The string is not copied, thus the pointer given to
+   this function must stay valid forever (or at least until the call to
+   VideoQuit()). */
+extern void SDL_SetKeyName(SDLKey physicalKey, const char *name);
+
 /* Set the keyboard focus window */
 extern void SDL_SetKeyboardFocus(int index, SDL_WindowID windowID);