Mercurial > sdl-ios-xcode
view src/events/SDL_keyboard_c.h @ 2268:4baee598306d
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
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Aug 2007 14:52:52 +0000 |
parents | 047245361002 |
children | c97ad1abe05b |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_keyboard_c_h #define _SDL_keyboard_c_h #include "SDL_keysym.h" #include "SDL_events.h" typedef struct SDL_Keyboard SDL_Keyboard; struct SDL_Keyboard { /* Free the keyboard when it's time */ void (*FreeKeyboard) (SDL_Keyboard * keyboard); /* Data common to all keyboards */ SDL_WindowID focus; Uint16 modstate; Uint8 keystate[SDLK_LAST]; void *driverdata; }; /* Used by the OS keyboard code to detect whether or not to do UNICODE */ #ifndef DEFAULT_UNICODE_TRANSLATION #define DEFAULT_UNICODE_TRANSLATION 0 /* Default off because of overhead */ #endif extern int SDL_TranslateUNICODE; /* Initialize the keyboard subsystem */ extern int SDL_KeyboardInit(void); /* Get the keyboard at an index */ extern SDL_Keyboard *SDL_GetKeyboard(int index); /* Add a keyboard, possibly reattaching at a particular index (or -1), returning the index of the keyboard, or -1 if there was an error. */ extern int SDL_AddKeyboard(const SDL_Keyboard * keyboard, int index); /* Remove a keyboard at an index, clearing the slot for later */ 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); /* Send a keyboard event for a keyboard at an index */ extern int SDL_SendKeyboardKey(int index, Uint8 state, Uint8 scancode, SDLKey key); /* Send keyboard text input for a keyboard at an index */ extern int SDL_SendKeyboardText(int index, const char *text); /* Shutdown the keyboard subsystem */ extern void SDL_KeyboardQuit(void); #endif /* _SDL_keyboard_c_h */ /* vi: set ts=4 sw=4 expandtab: */