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SDL_keyboard.c
910 lines (851 loc) · 18.8 KB
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* General keyboard handling code for SDL */
#include "SDL_timer.h"
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#include "SDL_events.h"
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#include "SDL_events_c.h"
#include "SDL_sysevents.h"
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/* Global keyboard information */
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typedef struct SDL_Keyboard SDL_Keyboard;
struct SDL_Keyboard
{
/* Data common to all keyboards */
SDL_Window *focus;
Uint16 modstate;
Uint8 keystate[SDL_NUM_SCANCODES];
SDLKey keymap[SDL_NUM_SCANCODES];
};
static SDL_Keyboard SDL_keyboard;
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static const SDLKey SDL_default_keymap[SDL_NUM_SCANCODES] = {
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0, 0, 0, 0,
'a',
'b',
'c',
'd',
'e',
'f',
'g',
'h',
'i',
'j',
'k',
'l',
'm',
'n',
'o',
'p',
'q',
'r',
's',
't',
'u',
'v',
'w',
'x',
'y',
'z',
'1',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'0',
SDLK_RETURN,
SDLK_ESCAPE,
SDLK_BACKSPACE,
SDLK_TAB,
SDLK_SPACE,
'-',
'=',
'[',
']',
'\\',
'#',
';',
'\'',
'`',
',',
'.',
'/',
SDLK_CAPSLOCK,
SDLK_F1,
SDLK_F2,
SDLK_F3,
SDLK_F4,
SDLK_F5,
SDLK_F6,
SDLK_F7,
SDLK_F8,
SDLK_F9,
SDLK_F10,
SDLK_F11,
SDLK_F12,
SDLK_PRINTSCREEN,
SDLK_SCROLLLOCK,
SDLK_PAUSE,
SDLK_INSERT,
SDLK_HOME,
SDLK_PAGEUP,
SDLK_DELETE,
SDLK_END,
SDLK_PAGEDOWN,
SDLK_RIGHT,
SDLK_LEFT,
SDLK_DOWN,
SDLK_UP,
SDLK_NUMLOCKCLEAR,
SDLK_KP_DIVIDE,
SDLK_KP_MULTIPLY,
SDLK_KP_MINUS,
SDLK_KP_PLUS,
SDLK_KP_ENTER,
SDLK_KP_1,
SDLK_KP_2,
SDLK_KP_3,
SDLK_KP_4,
SDLK_KP_5,
SDLK_KP_6,
SDLK_KP_7,
SDLK_KP_8,
SDLK_KP_9,
SDLK_KP_0,
SDLK_KP_PERIOD,
0,
SDLK_APPLICATION,
SDLK_POWER,
SDLK_KP_EQUALS,
SDLK_F13,
SDLK_F14,
SDLK_F15,
SDLK_F16,
SDLK_F17,
SDLK_F18,
SDLK_F19,
SDLK_F20,
SDLK_F21,
SDLK_F22,
SDLK_F23,
SDLK_F24,
SDLK_EXECUTE,
SDLK_HELP,
SDLK_MENU,
SDLK_SELECT,
SDLK_STOP,
SDLK_AGAIN,
SDLK_UNDO,
SDLK_CUT,
SDLK_COPY,
SDLK_PASTE,
SDLK_FIND,
SDLK_MUTE,
SDLK_VOLUMEUP,
SDLK_VOLUMEDOWN,
0, 0, 0,
SDLK_KP_COMMA,
SDLK_KP_EQUALSAS400,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
SDLK_ALTERASE,
SDLK_SYSREQ,
SDLK_CANCEL,
SDLK_CLEAR,
SDLK_PRIOR,
SDLK_RETURN2,
SDLK_SEPARATOR,
SDLK_OUT,
SDLK_OPER,
SDLK_CLEARAGAIN,
SDLK_CRSEL,
SDLK_EXSEL,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
SDLK_KP_00,
SDLK_KP_000,
SDLK_THOUSANDSSEPARATOR,
SDLK_DECIMALSEPARATOR,
SDLK_CURRENCYUNIT,
SDLK_CURRENCYSUBUNIT,
SDLK_KP_LEFTPAREN,
SDLK_KP_RIGHTPAREN,
SDLK_KP_LEFTBRACE,
SDLK_KP_RIGHTBRACE,
SDLK_KP_TAB,
SDLK_KP_BACKSPACE,
SDLK_KP_A,
SDLK_KP_B,
SDLK_KP_C,
SDLK_KP_D,
SDLK_KP_E,
SDLK_KP_F,
SDLK_KP_XOR,
SDLK_KP_POWER,
SDLK_KP_PERCENT,
SDLK_KP_LESS,
SDLK_KP_GREATER,
SDLK_KP_AMPERSAND,
SDLK_KP_DBLAMPERSAND,
SDLK_KP_VERTICALBAR,
SDLK_KP_DBLVERTICALBAR,
SDLK_KP_COLON,
SDLK_KP_HASH,
SDLK_KP_SPACE,
SDLK_KP_AT,
SDLK_KP_EXCLAM,
SDLK_KP_MEMSTORE,
SDLK_KP_MEMRECALL,
SDLK_KP_MEMCLEAR,
SDLK_KP_MEMADD,
SDLK_KP_MEMSUBTRACT,
SDLK_KP_MEMMULTIPLY,
SDLK_KP_MEMDIVIDE,
SDLK_KP_PLUSMINUS,
SDLK_KP_CLEAR,
SDLK_KP_CLEARENTRY,
SDLK_KP_BINARY,
SDLK_KP_OCTAL,
SDLK_KP_DECIMAL,
SDLK_KP_HEXADECIMAL,
0, 0,
SDLK_LCTRL,
SDLK_LSHIFT,
SDLK_LALT,
SDLK_LGUI,
SDLK_RCTRL,
SDLK_RSHIFT,
SDLK_RALT,
SDLK_RGUI,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
SDLK_MODE,
SDLK_AUDIONEXT,
SDLK_AUDIOPREV,
SDLK_AUDIOSTOP,
SDLK_AUDIOPLAY,
SDLK_AUDIOMUTE,
SDLK_MEDIASELECT,
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SDLK_WWW,
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SDLK_MAIL,
SDLK_CALCULATOR,
SDLK_COMPUTER,
SDLK_AC_SEARCH,
SDLK_AC_HOME,
SDLK_AC_BACK,
SDLK_AC_FORWARD,
SDLK_AC_STOP,
SDLK_AC_REFRESH,
SDLK_AC_BOOKMARKS,
SDLK_BRIGHTNESSDOWN,
SDLK_BRIGHTNESSUP,
SDLK_DISPLAYSWITCH,
SDLK_KBDILLUMTOGGLE,
SDLK_KBDILLUMDOWN,
SDLK_KBDILLUMUP,
SDLK_EJECT,
SDLK_SLEEP,
};
static const char *SDL_scancode_names[SDL_NUM_SCANCODES] = {
NULL, NULL, NULL, NULL,
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"0",
"Return",
"Escape",
"Backspace",
"Tab",
"Space",
"-",
"=",
"[",
"]",
"\\",
"#",
";",
"'",
"`",
",",
".",
"/",
"CapsLock",
"F1",
"F2",
"F3",
"F4",
"F5",
"F6",
"F7",
"F8",
"F9",
"F10",
"F11",
"F12",
"PrintScreen",
"ScrollLock",
"Pause",
"Insert",
"Home",
"PageUp",
"Delete",
"End",
"PageDown",
"Right",
"Left",
"Down",
"Up",
"Numlock",
"Keypad /",
"Keypad *",
"Keypad -",
"Keypad +",
"Keypad Enter",
"Keypad 1",
"Keypad 2",
"Keypad 3",
"Keypad 4",
"Keypad 5",
"Keypad 6",
"Keypad 7",
"Keypad 8",
"Keypad 9",
"Keypad 0",
"Keypad .",
NULL,
"Application",
"Power",
"Keypad =",
"F13",
"F14",
"F15",
"F16",
"F17",
"F18",
"F19",
"F20",
"F21",
"F22",
"F23",
"F24",
"Execute",
"Help",
"Menu",
"Select",
"Stop",
"Again",
"Undo",
"Cut",
"Copy",
"Paste",
"Find",
"Mute",
"VolumeUp",
"VolumeDown",
NULL, NULL, NULL,
"Keypad ,",
"Keypad = (AS400)",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL,
"AltErase",
"SysReq",
"Cancel",
"Clear",
"Prior",
"Return",
"Separator",
"Out",
"Oper",
"Clear / Again",
"CrSel",
"ExSel",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"Keypad 00",
"Keypad 000",
"ThousandsSeparator",
"DecimalSeparator",
"CurrencyUnit",
"CurrencySubUnit",
"Keypad (",
"Keypad )",
"Keypad {",
"Keypad }",
"Keypad Tab",
"Keypad Backspace",
"Keypad A",
"Keypad B",
"Keypad C",
"Keypad D",
"Keypad E",
"Keypad F",
"Keypad XOR",
"Keypad ^",
"Keypad %",
"Keypad <",
"Keypad >",
"Keypad &",
"Keypad &&",
"Keypad |",
"Keypad ||",
"Keypad :",
"Keypad #",
"Keypad Space",
"Keypad @",
"Keypad !",
"Keypad MemStore",
"Keypad MemRecall",
"Keypad MemClear",
"Keypad MemAdd",
"Keypad MemSubtract",
"Keypad MemMultiply",
"Keypad MemDivide",
"Keypad +/-",
"Keypad Clear",
"Keypad ClearEntry",
"Keypad Binary",
"Keypad Octal",
"Keypad Decimal",
"Keypad Hexadecimal",
NULL, NULL,
"Left Ctrl",
"Left Shift",
"Left Alt",
"Left GUI",
"Right Ctrl",
"Right Shift",
"Right Alt",
"Right GUI",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL,
"ModeSwitch",
"AudioNext",
"AudioPrev",
"AudioStop",
"AudioPlay",
"AudioMute",
"MediaSelect",
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"WWW",
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"Mail",
"Calculator",
"Computer",
"AC Search",
"AC Home",
"AC Back",
"AC Forward",
"AC Stop",
"AC Refresh",
"AC Bookmarks",
"BrightnessDown",
"BrightnessUp",
"DisplaySwitch",
"KBDIllumToggle",
"KBDIllumDown",
"KBDIllumUp",
"Eject",
"Sleep",
};
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/* Taken from SDL_iconv() */
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static char *
SDL_UCS4ToUTF8(Uint32 ch, char *dst)
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{
Uint8 *p = (Uint8 *) dst;
if (ch <= 0x7F) {
*p = (Uint8) ch;
++dst;
} else if (ch <= 0x7FF) {
p[0] = 0xC0 | (Uint8) ((ch >> 6) & 0x1F);
p[1] = 0x80 | (Uint8) (ch & 0x3F);
dst += 2;
} else if (ch <= 0xFFFF) {
p[0] = 0xE0 | (Uint8) ((ch >> 12) & 0x0F);
p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[2] = 0x80 | (Uint8) (ch & 0x3F);
dst += 3;
} else if (ch <= 0x1FFFFF) {
p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07);
p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[3] = 0x80 | (Uint8) (ch & 0x3F);
dst += 4;
} else if (ch <= 0x3FFFFFF) {
p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03);
p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[4] = 0x80 | (Uint8) (ch & 0x3F);
dst += 5;
} else {
p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01);
p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F);
p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F);
p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F);
p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F);
p[5] = 0x80 | (Uint8) (ch & 0x3F);
dst += 6;
}
return dst;
}
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/* Public functions */
int
SDL_KeyboardInit(void)
{
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SDL_Keyboard *keyboard = &SDL_keyboard;
/* Set the default keymap */
SDL_memcpy(keyboard->keymap, SDL_default_keymap, sizeof(SDL_default_keymap));
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return (0);
}
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void
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SDL_ResetKeyboard(void)
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{
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SDL_Keyboard *keyboard = &SDL_keyboard;
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SDL_scancode scancode;
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for (scancode = 0; scancode < SDL_NUM_SCANCODES; ++scancode) {
if (keyboard->keystate[scancode] == SDL_PRESSED) {
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SDL_SendKeyboardKey(SDL_RELEASED, scancode);
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}
}
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}
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void
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SDL_GetDefaultKeymap(SDLKey * keymap)
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{
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SDL_memcpy(keymap, SDL_default_keymap, sizeof(SDL_default_keymap));
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}
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void
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SDL_SetKeymap(int start, SDLKey * keys, int length)
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{
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SDL_Keyboard *keyboard = &SDL_keyboard;
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if (start < 0 || start + length > SDL_NUM_SCANCODES) {
return;
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}
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SDL_memcpy(&keyboard->keymap[start], keys, sizeof(*keys) * length);
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}
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void
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SDL_SetScancodeName(SDL_scancode scancode, const char *name)
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{
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SDL_scancode_names[scancode] = name;
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}
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SDL_Window *
SDL_GetKeyboardFocus(void)
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{
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SDL_Keyboard *keyboard = &SDL_keyboard;
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return keyboard->focus;
}
void
SDL_SetKeyboardFocus(SDL_Window * window)
{
SDL_Keyboard *keyboard = &SDL_keyboard;
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/* See if the current window has lost focus */
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if (keyboard->focus && keyboard->focus != window) {
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SDL_SendWindowEvent(keyboard->focus, SDL_WINDOWEVENT_FOCUS_LOST,
0, 0);
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}
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keyboard->focus = window;
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if (keyboard->focus) {
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SDL_SendWindowEvent(keyboard->focus, SDL_WINDOWEVENT_FOCUS_GAINED,
0, 0);
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if (SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
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SDL_StartTextInput();
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}
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}
}
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int
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SDL_SendKeyboardKey(Uint8 state, SDL_scancode scancode)
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{
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SDL_Keyboard *keyboard = &SDL_keyboard;
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int posted;
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Uint16 modstate;
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Uint32 type;
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if (!scancode) {
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return 0;
}
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#if 0
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printf("The '%s' key has been %s\n", SDL_GetScancodeName(scancode),
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state == SDL_PRESSED ? "pressed" : "released");
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#endif
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if (state == SDL_PRESSED) {
modstate = keyboard->modstate;
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switch (scancode) {
case SDL_SCANCODE_NUMLOCKCLEAR:
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keyboard->modstate ^= KMOD_NUM;
break;
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case SDL_SCANCODE_CAPSLOCK:
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keyboard->modstate ^= KMOD_CAPS;
break;
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case SDL_SCANCODE_LCTRL:
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keyboard->modstate |= KMOD_LCTRL;
break;
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case SDL_SCANCODE_RCTRL:
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keyboard->modstate |= KMOD_RCTRL;
break;
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case SDL_SCANCODE_LSHIFT:
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keyboard->modstate |= KMOD_LSHIFT;
break;
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case SDL_SCANCODE_RSHIFT:
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keyboard->modstate |= KMOD_RSHIFT;
break;
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case SDL_SCANCODE_LALT:
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keyboard->modstate |= KMOD_LALT;
break;
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case SDL_SCANCODE_RALT:
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keyboard->modstate |= KMOD_RALT;
break;
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case SDL_SCANCODE_LGUI:
keyboard->modstate |= KMOD_LGUI;
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break;
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case SDL_SCANCODE_RGUI:
keyboard->modstate |= KMOD_RGUI;
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break;
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case SDL_SCANCODE_MODE:
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keyboard->modstate |= KMOD_MODE;
break;
default:
break;
}
} else {
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switch (scancode) {
case SDL_SCANCODE_NUMLOCKCLEAR:
case SDL_SCANCODE_CAPSLOCK:
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break;
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case SDL_SCANCODE_LCTRL:
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keyboard->modstate &= ~KMOD_LCTRL;
break;
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case SDL_SCANCODE_RCTRL:
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keyboard->modstate &= ~KMOD_RCTRL;
break;
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case SDL_SCANCODE_LSHIFT:
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keyboard->modstate &= ~KMOD_LSHIFT;
break;
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case SDL_SCANCODE_RSHIFT:
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keyboard->modstate &= ~KMOD_RSHIFT;
break;
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case SDL_SCANCODE_LALT:
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keyboard->modstate &= ~KMOD_LALT;
break;
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case SDL_SCANCODE_RALT:
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keyboard->modstate &= ~KMOD_RALT;
break;
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case SDL_SCANCODE_LGUI:
keyboard->modstate &= ~KMOD_LGUI;
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break;
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case SDL_SCANCODE_RGUI:
keyboard->modstate &= ~KMOD_RGUI;
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break;
712
case SDL_SCANCODE_MODE:
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
keyboard->modstate &= ~KMOD_MODE;
break;
default:
break;
}
modstate = keyboard->modstate;
}
/* Figure out what type of event this is */
switch (state) {
case SDL_PRESSED:
type = SDL_KEYDOWN;
break;
case SDL_RELEASED:
type = SDL_KEYUP;
break;
default:
/* Invalid state -- bail */
return 0;
}
734
735
/* Drop events that don't change state */
if (keyboard->keystate[scancode] == state) {
736
#if 0
737
printf("Keyboard event didn't change state - dropped!\n");
738
#endif
739
return 0;
740
741
}
742
743
744
/* Update internal keyboard state */
keyboard->keystate[scancode] = state;
745
746
/* Post the event, if desired */
posted = 0;
747
if (SDL_GetEventState(type) == SDL_ENABLE) {
748
749
750
751
SDL_Event event;
event.key.type = type;
event.key.state = state;
event.key.keysym.scancode = scancode;
752
event.key.keysym.sym = keyboard->keymap[scancode];
753
754
event.key.keysym.mod = modstate;
event.key.keysym.unicode = 0;
755
event.key.windowID = keyboard->focus ? keyboard->focus->id : 0;
756
757
758
759
760
761
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
}
int
762
SDL_SendKeyboardText(const char *text)
763
{
764
SDL_Keyboard *keyboard = &SDL_keyboard;
765
766
int posted;
767
768
769
770
771
/* Don't post text events for unprintable characters */
if (*text < ' ') {
return 0;
}
772
773
/* Post the event, if desired */
posted = 0;
774
if (SDL_GetEventState(SDL_TEXTINPUT) == SDL_ENABLE) {
775
776
SDL_Event event;
event.text.type = SDL_TEXTINPUT;
777
event.text.windowID = keyboard->focus ? keyboard->focus->id : 0;
778
SDL_strlcpy(event.text.text, text, SDL_arraysize(event.text.text));
779
event.text.windowID = keyboard->focus ? keyboard->focus->id : 0;
780
781
782
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
783
784
}
785
int
786
SDL_SendEditingText(const char *text, int start, int length)
787
{
788
SDL_Keyboard *keyboard = &SDL_keyboard;
789
790
791
792
int posted;
/* Post the event, if desired */
posted = 0;
793
if (SDL_GetEventState(SDL_TEXTEDITING) == SDL_ENABLE) {
794
795
SDL_Event event;
event.edit.type = SDL_TEXTEDITING;
796
event.edit.windowID = keyboard->focus ? keyboard->focus->id : 0;
797
798
event.edit.start = start;
event.edit.length = length;
799
SDL_strlcpy(event.edit.text, text, SDL_arraysize(event.edit.text));
800
801
802
803
804
posted = (SDL_PushEvent(&event) > 0);
}
return (posted);
}
805
806
807
808
809
810
811
812
void
SDL_KeyboardQuit(void)
{
}
Uint8 *
SDL_GetKeyboardState(int *numkeys)
{
813
SDL_Keyboard *keyboard = &SDL_keyboard;
814
815
816
817
818
819
820
821
822
823
if (numkeys != (int *) 0) {
*numkeys = SDL_NUM_SCANCODES;
}
return keyboard->keystate;
}
SDLMod
SDL_GetModState(void)
{
824
SDL_Keyboard *keyboard = &SDL_keyboard;
825
826
827
828
829
830
831
return keyboard->modstate;
}
void
SDL_SetModState(SDLMod modstate)
{
832
SDL_Keyboard *keyboard = &SDL_keyboard;
833
834
835
836
837
838
839
keyboard->modstate = modstate;
}
SDLKey
SDL_GetKeyFromScancode(SDL_scancode scancode)
{
840
SDL_Keyboard *keyboard = &SDL_keyboard;
841
842
843
844
845
846
847
return keyboard->keymap[scancode];
}
SDL_scancode
SDL_GetScancodeFromKey(SDLKey key)
{
848
SDL_Keyboard *keyboard = &SDL_keyboard;
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
SDL_scancode scancode;
for (scancode = SDL_SCANCODE_UNKNOWN; scancode < SDL_NUM_SCANCODES;
++scancode) {
if (keyboard->keymap[scancode] == key) {
return scancode;
}
}
return SDL_SCANCODE_UNKNOWN;
}
const char *
SDL_GetScancodeName(SDL_scancode scancode)
{
const char *name = SDL_scancode_names[scancode];
if (name)
return name;
else
return "";
}
const char *
SDL_GetKeyName(SDLKey key)
{
static char name[8];
char *end;
if (key & SDLK_SCANCODE_MASK) {
return
SDL_GetScancodeName((SDL_scancode) (key & ~SDLK_SCANCODE_MASK));
}
882
883
switch (key) {
case SDLK_RETURN:
884
return SDL_GetScancodeName(SDL_SCANCODE_RETURN);
885
case SDLK_ESCAPE:
886
return SDL_GetScancodeName(SDL_SCANCODE_ESCAPE);
887
case SDLK_BACKSPACE:
888
return SDL_GetScancodeName(SDL_SCANCODE_BACKSPACE);
889
case SDLK_TAB:
890
return SDL_GetScancodeName(SDL_SCANCODE_TAB);
891
case SDLK_SPACE:
892
return SDL_GetScancodeName(SDL_SCANCODE_SPACE);
893
case SDLK_DELETE:
894
return SDL_GetScancodeName(SDL_SCANCODE_DELETE);
895
896
897
898
899
900
901
902
default:
/* Unaccented letter keys on latin keyboards are normally
labeled in upper case (and probably on others like Greek or
Cyrillic too, so if you happen to know for sure, please
adapt this). */
if (key >= 'a' && key <= 'z') {
key -= 32;
}
903
904
905
906
907
end = SDL_UCS4ToUTF8((Uint32) key, name);
*end = '\0';
return name;
}
908
909
}
910
/* vi: set ts=4 sw=4 expandtab: */