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annotate src/events/SDL_keyboard_c.h @ 2268:4baee598306d

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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
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_keyboard_c_h
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25 #define _SDL_keyboard_c_h
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26
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27 #include "SDL_keysym.h"
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28 #include "SDL_events.h"
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29
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30 typedef struct SDL_Keyboard SDL_Keyboard;
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31
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32 struct SDL_Keyboard
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33 {
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34 /* Free the keyboard when it's time */
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35 void (*FreeKeyboard) (SDL_Keyboard * keyboard);
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36
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37 /* Data common to all keyboards */
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38 SDL_WindowID focus;
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39 Uint16 modstate;
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40 Uint8 keystate[SDLK_LAST];
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41
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42 void *driverdata;
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43 };
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44
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45 /* Used by the OS keyboard code to detect whether or not to do UNICODE */
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46 #ifndef DEFAULT_UNICODE_TRANSLATION
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47 #define DEFAULT_UNICODE_TRANSLATION 0 /* Default off because of overhead */
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48 #endif
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49 extern int SDL_TranslateUNICODE;
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50
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51 /* Initialize the keyboard subsystem */
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52 extern int SDL_KeyboardInit(void);
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53
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54 /* Get the keyboard at an index */
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55 extern SDL_Keyboard *SDL_GetKeyboard(int index);
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56
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57 /* Add a keyboard, possibly reattaching at a particular index (or -1),
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58 returning the index of the keyboard, or -1 if there was an error.
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59 */
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60 extern int SDL_AddKeyboard(const SDL_Keyboard * keyboard, int index);
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61
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62 /* Remove a keyboard at an index, clearing the slot for later */
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63 extern void SDL_DelKeyboard(int index);
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64
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65 /* Clear the state of a keyboard at an index */
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66 extern void SDL_ResetKeyboard(int index);
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67
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68 /* Set a platform-dependent key name, overriding the default platform-agnostic
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69 name. Encoded as UTF-8. The string is not copied, thus the pointer given to
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70 this function must stay valid forever (or at least until the call to
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71 VideoQuit()). */
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72 extern void SDL_SetKeyName(SDLKey physicalKey, const char *name);
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73
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74 /* Set the keyboard focus window */
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75 extern void SDL_SetKeyboardFocus(int index, SDL_WindowID windowID);
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76
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77 /* Send a keyboard event for a keyboard at an index */
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78 extern int SDL_SendKeyboardKey(int index, Uint8 state, Uint8 scancode,
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79 SDLKey key);
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80
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81 /* Send keyboard text input for a keyboard at an index */
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82 extern int SDL_SendKeyboardText(int index, const char *text);
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83
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84 /* Shutdown the keyboard subsystem */
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85 extern void SDL_KeyboardQuit(void);
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86
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87 #endif /* _SDL_keyboard_c_h */
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88
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89 /* vi: set ts=4 sw=4 expandtab: */