/*
 * ReactOS Bengali Keyboard layout
 * Copyright (C) 2008 ReactOS
 * Author: Dmitry Chapyshev
 * License: LGPL, see: LGPL.txt
 *
 * Thanks to: http://www.barcodeman.com/altek/mule/scandoc.php
 * and http://win.tue.nl/~aeb/linux/kbd/scancodes-1.html
 */

#define WIN32_NO_STATUS
#include <stdarg.h>
#include <windef.h>
#include <winuser.h>
#include <ndk/kbd.h>

#ifdef _M_IA64
#define ROSDATA static __declspec(allocate(".data"))
#else
#ifdef _MSC_VER
#pragma data_seg(".data")
#define ROSDATA static
#else
#define ROSDATA static __attribute__((section(".data")))
#endif
#endif

#define VK_EMPTY  0xff   /* The non-existent VK */

#define KNUMS     KBDNUMPAD|KBDSPECIAL /* Special + number pad */
#define KMEXT     KBDEXT|KBDMULTIVK    /* Multi + ext */

ROSDATA USHORT scancode_to_vk[] = {
  /* Numbers Row */
  /* - 00 - */
  /* 1 ...         2 ...         3 ...         4 ... */
  VK_EMPTY,     VK_ESCAPE,    '1',          '2',
  '3',          '4',          '5',          '6',
  '7',          '8',          '9',          '0',
  VK_OEM_MINUS, VK_OEM_PLUS,  VK_BACK,
  /* - 0f - */
  /* First Letters Row */
  VK_TAB,       'Q',          'W',          'E',
  'R',          'T',          'Y',          'U',
  'I',          'O',          'P',
  VK_OEM_4,     VK_OEM_6,     VK_RETURN,
  /* - 1d - */
  /* Second Letters Row */
  VK_LCONTROL,
  'A',          'S',          'D',          'F',
  'G',          'H',          'J',          'K',
  'L',          VK_OEM_1,     VK_OEM_7,     VK_OEM_3,
  VK_LSHIFT,    VK_OEM_5,
  /* - 2c - */
  /* Third letters row */
  'Z',          'X',          'C',          'V',
  'B',          'N',          'M',          VK_OEM_COMMA,
  VK_OEM_PERIOD,VK_OEM_2,     VK_RSHIFT | KBDEXT,
  /* - 37 - */
  /* Bottom Row */
  0x26a,  VK_LMENU,     VK_SPACE,     VK_CAPITAL,

  /* - 3b - */
  /* F-Keys */
  VK_F1, VK_F2, VK_F3, VK_F4, VK_F5, VK_F6,
  VK_F7, VK_F8, VK_F9, VK_F10,
  /* - 45 - */
  /* Locks */
  VK_NUMLOCK | KMEXT,
  VK_SCROLL | KBDMULTIVK,
  /* - 47 - */
  /* Number-Pad */
  VK_HOME | KNUMS,      VK_UP | KNUMS,         VK_PRIOR | KNUMS, VK_SUBTRACT,
  VK_LEFT | KNUMS,      VK_CLEAR | KNUMS,      VK_RIGHT | KNUMS, VK_ADD,
  VK_END | KNUMS,       VK_DOWN | KNUMS,       VK_NEXT | KNUMS,
  VK_INSERT | KNUMS,    VK_DELETE | KNUMS,
  /* - 54 - */
  /* Presumably PrtSc */
  VK_SNAPSHOT,
  /* - 55 - */
  /* Oddities, and the remaining standard F-Keys */
  VK_EMPTY,     VK_OEM_102,     VK_F11,       VK_F12,
  /* - 59 - */
  VK_CLEAR,     VK_OEM_WSCTRL,VK_OEM_FINISH,VK_OEM_JUMP,  VK_EREOF, /* EREOF */
  VK_OEM_BACKTAB,    VK_OEM_AUTO,  VK_EMPTY,    VK_ZOOM,            /* ZOOM */
  VK_HELP,
  /* - 64 - */
  /* Even more F-Keys (for example, NCR keyboards from the early 90's) */
  VK_F13, VK_F14, VK_F15, VK_F16, VK_F17, VK_F18, VK_F19, VK_F20,
  VK_F21, VK_F22, VK_F23,
  /* - 6f - */
  /* Not sure who uses these codes */
  VK_OEM_PA3, VK_EMPTY, VK_OEM_RESET,
  /* - 72 - */
  VK_EMPTY, 0xc1, VK_EMPTY, VK_EMPTY,
  /* - 76 - */
  /* One more f-key */
  VK_F24,
  /* - 77 - */
  VK_EMPTY, VK_EMPTY, VK_EMPTY, VK_EMPTY,
  VK_OEM_PA1, VK_TAB, 0xc2, 0, /* PA1 */
  0,
  /* - 80 - */
  0
};

ROSDATA VSC_VK extcode0_to_vk[] = {
  { 0x10, VK_MEDIA_PREV_TRACK | KBDEXT },
  { 0x19, VK_MEDIA_NEXT_TRACK | KBDEXT },
  { 0x1D, VK_RCONTROL | KBDEXT },
  { 0x20, VK_VOLUME_MUTE | KBDEXT },
  { 0x21, VK_LAUNCH_APP2 | KBDEXT },
  { 0x22, VK_MEDIA_PLAY_PAUSE | KBDEXT },
  { 0x24, VK_MEDIA_STOP | KBDEXT },
  { 0x2E, VK_VOLUME_DOWN | KBDEXT },
  { 0x30, VK_VOLUME_UP | KBDEXT },
  { 0x32, VK_BROWSER_HOME | KBDEXT },
  { 0x35, VK_DIVIDE | KBDEXT },
  { 0x37, VK_SNAPSHOT | KBDEXT },
  { 0x38, VK_RMENU | KBDEXT },
  { 0x47, VK_HOME | KBDEXT },
  { 0x48, VK_UP | KBDEXT },
  { 0x49, VK_PRIOR | KBDEXT },
  { 0x4B, VK_LEFT | KBDEXT },
  { 0x4D, VK_RIGHT | KBDEXT },
  { 0x4F, VK_END | KBDEXT },
  { 0x50, VK_DOWN | KBDEXT },
  { 0x51, VK_NEXT | KBDEXT },
  { 0x52, VK_INSERT | KBDEXT },
  { 0x53, VK_DELETE | KBDEXT },
  { 0x5B, VK_LWIN | KBDEXT },
  { 0x5C, VK_RWIN | KBDEXT },
  { 0x5D, VK_APPS | KBDEXT },
  { 0x5F, VK_SLEEP | KBDEXT },
  { 0x65, VK_BROWSER_SEARCH | KBDEXT },
  { 0x66, VK_BROWSER_FAVORITES | KBDEXT },
  { 0x67, VK_BROWSER_REFRESH | KBDEXT },
  { 0x68, VK_BROWSER_STOP | KBDEXT },
  { 0x69, VK_BROWSER_FORWARD | KBDEXT },
  { 0x6A, VK_BROWSER_BACK | KBDEXT },
  { 0x6B, VK_LAUNCH_APP1 | KBDEXT },
  { 0x6C, VK_LAUNCH_MAIL | KBDEXT },
  { 0x6D, VK_LAUNCH_MEDIA_SELECT | KBDEXT },
  { 0x1C, VK_RETURN | KBDEXT },
  { 0x46, VK_CANCEL | KBDEXT },
  { 0, 0 },
};

ROSDATA VSC_VK extcode1_to_vk[] = {
  { 0x1d, VK_PAUSE},
  { 0, 0 },
};

ROSDATA VK_TO_BIT modifier_keys[] = {
  { VK_SHIFT,   KBDSHIFT },
  { VK_CONTROL, KBDCTRL },
  { VK_MENU,    KBDALT },
  { 0,          0 }
};

ROSDATA MODIFIERS modifier_bits = {
  modifier_keys,
  7,
  { 0, 1, 5, 2, SHFT_INVALID, SHFT_INVALID, 3, 4 }
};

ROSDATA VK_TO_WCHARS2 key_to_chars_2mod[] = {
  { VK_OEM_3,     0, {WCH_NONE, WCH_NONE} },
  { VK_OEM_MINUS, 0, {'-',      0x0983  } },
  { 'W',          0, {0x09c8,   0x0990  } },
  { 'E',          0, {0x09be,   0x0986  } },
  { 'T',          0, {0x09c2,   0x098a  } },
  { 'Y',          0, {0x09ac,   0x09ad  } },
  { 'U',          0, {0x09b9,   0x0999  } },
  { 'I',          0, {0x0997,   0x0998  } },
  { 'O',          0, {0x09a6,   0x09a7  } },
  { 'P',          0, {0x099c,   0x099d  } },
  { VK_OEM_6,     0, {0x09bc,   0x099e  } },
  { VK_OEM_5,     0, {WCH_NONE, WCH_NONE} },
  { 'G',          0, {0x09c1,   0x0989  } },
  { 'H',          0, {0x09aa,   0x09ab  } },
  { 'K',          0, {0x0995,   0x0996  } },
  { 'L',          0, {0x09a4,   0x09a5  } },
  { VK_OEM_1,     0, {0x099a,   0x099b  } },
  { VK_OEM_7,     0, {0x099f,   0x09a0  } },
  { 'Z',          0, {WCH_NONE, WCH_NONE} },
  { 'C',          0, {0x09ae,   0x09a3  } },
  { 'V',          0, {0x09a8,   WCH_NONE} },
  { 'B',          0, {0x09ac,   WCH_NONE} },
  { 'N',          0, {0x09b2,   WCH_NONE} },
  { 'M',          0, {0x09b8,   0x09b6  } },
  { VK_OEM_COMMA, 0, {',',      0x09b7  } },
  { VK_OEM_PERIOD,0, {'.',      '{'     } },
  { VK_OEM_2,     0, {0x09af,   0x09df  } },
  { VK_OEM_102,   0, {WCH_NONE, WCH_NONE} },
  { VK_DECIMAL,   0, {'.',      '.'     } },
  { VK_TAB,       0, {'\t',     '\t'    } },
  { VK_ADD,       0, {'+',      '+'     } },
  { VK_DIVIDE,    0, {'/',      '/'     } },
  { VK_MULTIPLY,  0, {'*',      '*'     } },
  { VK_SUBTRACT,  0, {'-',      '-'     } },
  { 0, 0 }
};

ROSDATA VK_TO_WCHARS4 key_to_chars_4mod[] = {
  { '1', 0, {'1',    WCH_NONE, 0x200d,   0x09e7} },
  { '2', 0, {'2',    WCH_NONE, 0x200c,   0x09e8} },
  { '3', 0, {'3',    WCH_LGTR, WCH_NONE, 0x09e9} },
  { '4', 0, {'4',    WCH_LGTR, WCH_NONE, 0x09ea} },
  { '5', 0, {'5',    WCH_LGTR, WCH_NONE, 0x09eb} },
  { '6', 0, {'6',    WCH_LGTR, WCH_NONE, 0x09ec} },
  { '7', 0, {'7',    WCH_LGTR, WCH_NONE, 0x09ed} },
  { '8', 0, {'8',    WCH_LGTR, WCH_NONE, 0x09ee} },
  { '9', 0, {'9',    '(',      WCH_NONE, 0x09ef} },
  { '0', 0, {'0',    ')',      WCH_NONE, 0x09e6} },
  { 'Q', 0, {0x09cc, 0x0994,   WCH_NONE, 0x09d7} },
  { 'X', 0, {0x0982, 0x0981,   WCH_NONE, 0x09fa} },
  { 0, 0 }
};

ROSDATA VK_TO_WCHARS5 key_to_chars_5mod[] = {
  { VK_OEM_PLUS, 0, {0x09c3, 0x098b,   WCH_NONE, 0x09e2, 0x09e0} },
  { 'R',         0, {0x09c0, 0x0988,   WCH_NONE, 0x09e3, 0x09e1} },
  { VK_OEM_4,    0, {0x09a1, 0x09a2,   WCH_NONE, 0x09dc, 0x09dd} },
  { 'A',         0, {0x09cb, 0x0993,   WCH_NONE, 0x09f4, 0x09f5} },
  { 'S',         0, {0x09c7, 0x098f,   WCH_NONE, 0x09f6, 0x09f7} },
  { 'D',         0, {0x09cd, 0x0985,   WCH_NONE, 0x09f8, 0x09f9} },
  { 'F',         0, {0x09bf, 0x0987,   WCH_NONE, 0x09e2, 0x098c} },
  { 'J',         0, {0x09b0, WCH_NONE, WCH_NONE, 0x09f0, 0x09f1} },
  { 0, 0 }
};

ROSDATA VK_TO_WCHARS6 key_to_chars_6mod[] = {
  { VK_BACK,   0, {'\b',   '\b',   WCH_NONE, WCH_NONE, WCH_NONE, 0x007f} },
  { VK_ESCAPE, 0, {0x001b, 0x001b, WCH_NONE, WCH_NONE, WCH_NONE, 0x001b} },
  { VK_RETURN, 0, {'\r',   '\r',   WCH_NONE, WCH_NONE, WCH_NONE, '\n'  } },
  { VK_SPACE,  0, {' ',    ' ',    WCH_NONE, WCH_NONE, WCH_NONE, ' '   } },
  { VK_CANCEL, 0, {0x0003, 0x0003, WCH_NONE, WCH_NONE, WCH_NONE, 0x0003} },
  { 0, 0 }
};

ROSDATA VK_TO_WCHARS1 keypad_numbers[] = {
  { VK_NUMPAD0, 0, {'0'} },
  { VK_NUMPAD1, 0, {'1'} },
  { VK_NUMPAD2, 0, {'2'} },
  { VK_NUMPAD3, 0, {'3'} },
  { VK_NUMPAD4, 0, {'4'} },
  { VK_NUMPAD5, 0, {'5'} },
  { VK_NUMPAD6, 0, {'6'} },
  { VK_NUMPAD7, 0, {'7'} },
  { VK_NUMPAD8, 0, {'8'} },
  { VK_NUMPAD9, 0, {'9'} },
  { 0, 0 }
};

#define vk_master(n,x) { (PVK_TO_WCHARS1)x, n, sizeof(x[0]) }

ROSDATA VK_TO_WCHAR_TABLE vk_to_wchar_master_table[] = {
  vk_master(4,key_to_chars_4mod),
  vk_master(5,key_to_chars_5mod),
  vk_master(6,key_to_chars_6mod),
  vk_master(2,key_to_chars_2mod),
  vk_master(1,keypad_numbers),
  { 0,0,0 }
};

ROSDATA VSC_LPWSTR key_names[] = {
  { 0x01, L"Esc" },
  { 0x0e, L"Backspace" },
  { 0x0f, L"Tab" },
  { 0x1c, L"Enter" },
  { 0x1d, L"Ctrl" },
  { 0x2a, L"Shift" },
  { 0x36, L"Right Shift" },
  { 0x37, L"Num *" },
  { 0x38, L"Alt" },
  { 0x39, L"Space" },
  { 0x3a, L"CAPLOK Lock" },
  { 0x3b, L"F1" },
  { 0x3c, L"F2" },
  { 0x3d, L"F3" },
  { 0x3e, L"F4" },
  { 0x3f, L"F5" },
  { 0x40, L"F6" },
  { 0x41, L"F7" },
  { 0x42, L"F8" },
  { 0x43, L"F9" },
  { 0x44, L"F10" },
  { 0x45, L"Pause" },
  { 0x46, L"Scroll Lock" },
  { 0x47, L"Num 7" },
  { 0x48, L"Num 8" },
  { 0x49, L"Num 9" },
  { 0x4a, L"Num -" },
  { 0x4b, L"Num 4" },
  { 0x4c, L"Num 5" },
  { 0x4d, L"Num 6" },
  { 0x4e, L"Num +" },
  { 0x4f, L"Num 1" },
  { 0x50, L"Num 2" },
  { 0x51, L"Num 3" },
  { 0x52, L"Num 0" },
  { 0x53, L"Num Del" },
  { 0x54, L"Sys Req" },
  { 0x57, L"F11" },
  { 0x58, L"F12" },
  { 0x7c, L"F13" },
  { 0x7d, L"F14" },
  { 0x7e, L"F15" },
  { 0x7f, L"F16" },
  { 0x80, L"F17" },
  { 0x81, L"F18" },
  { 0x82, L"F19" },
  { 0x83, L"F20" },
  { 0x84, L"F21" },
  { 0x85, L"F22" },
  { 0x86, L"F23" },
  { 0x87, L"F24" },
  { 0, NULL }
};

ROSDATA VSC_LPWSTR extended_key_names[] = {
  { 0x1c, L"Num Enter" },
  { 0x1d, L"Right Control" },
  { 0x35, L"Num /" },
  { 0x37, L"Prnt Scrn" },
  { 0x38, L"Right Alt" },
  { 0x45, L"Num Lock" },
  { 0x46, L"Break" },
  { 0x47, L"Home" },
  { 0x48, L"Up" },
  { 0x49, L"Page Up" },
  { 0x4b, L"Left" },
//{ 0x4c, L"Center" },
  { 0x4d, L"Right" },
  { 0x4f, L"End" },
  { 0x50, L"Down" },
  { 0x51, L"Page Down" },
  { 0x52, L"Insert" },
  { 0x53, L"Delete" },
  { 0x54, L"<ReactOS>" },
  { 0x56, L"Help" },
  { 0x5b, L"Left <ReactOS>" },
  { 0x5c, L"Right <ReactOS>" },
  { 0x5d, L"Application" },
  { 0, NULL }
};

ROSDATA LIGATURE3 Ligature[] = {
  { '3', 1, {0x09cd, 0x09b0, WCH_NONE} },
  { '4', 1, {0x09b0, 0x09cd, WCH_NONE} },
  { '5', 1, {0x099c, 0x09cd, 0x09b0  } },
  { '6', 1, {0x09a4, 0x09cd, 0x09b7  } },
  { '7', 1, {0x0995, 0x09cd, 0x09b0  } },
  { '8', 1, {0x09b6, 0x09cd, 0x09b0  } },
  {0, 0}
};

/* Finally, the master table */
ROSDATA KBDTABLES keyboard_layout_table = {
  /* modifier assignments */
  &modifier_bits,

  /* character from vk tables */
  vk_to_wchar_master_table,

  /* diacritical marks */
  NULL,

  /* Key names */
  (VSC_LPWSTR *)key_names,
  (VSC_LPWSTR *)extended_key_names,
  NULL, /* Dead key names */

  /* scan code to virtual key maps */
  scancode_to_vk,
  sizeof(scancode_to_vk) / sizeof(scancode_to_vk[0]),
  extcode0_to_vk,
  extcode1_to_vk,

  MAKELONG(KLLF_ALTGR, 1), /* Version 1.0 */

  /* Ligatures */
  3,
  sizeof(Ligature[0]),
  (PLIGATURE1)Ligature
};

PKBDTABLES WINAPI KbdLayerDescriptor(VOID) {
  return &keyboard_layout_table;
}

INT WINAPI
DllMain(
  PVOID hinstDll,
  ULONG dwReason,
  PVOID reserved)
{
  return 1;
}

