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/* Keyboard handler routines header.
Copyright by Salvador E. Tropea (SET) (1998,1999,2001)
Covered by the GPL license. */
#ifndef GKEY_HEADER_INCLUDED
#define GKEY_HEADER_INCLUDED
// A type for the BIOS ASCII/Scan
typedef union
{
unsigned short full;
struct
{
#ifdef TV_BIG_ENDIAN
unsigned char scan;
unsigned char ascii;
#else
unsigned char ascii;
unsigned char scan;
#endif
} b;
} KeyType;
// Shift constants
const ushort
kbShiftCode=0x080,
kbCtrlCode =0x100,
kbAltRCode =0x400,
kbAltLCode =0x200,
kbKeyMask =0x07F;
#ifdef Uses_FullSingleKeySymbols
// Key constants, basically they are from the US keyboard, but all of them
// are standard ASCII and not extended.
const ushort
kbUnkNown=0,
kbA= 1,kbB= 2,kbC= 3,kbD= 4,kbE= 5,kbF= 6,kbG= 7,kbH= 8,kbI= 9,kbJ=10,kbK=11,
kbL=12,kbM=13,kbN=14,kbO=15,kbP=16,kbQ=17,kbR=18,kbS=19,kbT=20,kbU=21,kbV=22,
kbW=23,kbX=24,kbY=25,kbZ=26,
kbOpenBrace=27,kbBackSlash=28,kbCloseBrace=29,kbPause=30,kbEsc=31,
kb0=32,kb1=33,kb2=34,kb3=35,kb4=36,kb5=37,kb6=38,kb7=39,kb8=40,kb9=41,
kbBackSpace=42,kbTab=43,kbEnter=44,kbColon=45,kbQuote=46,kbGrave=47,
kbComma=48,kbStop=49,kbSlash=50,kbAsterisk=51,kbSpace=52,kbMinus=53,
kbPlus=54,kbPrnScr=55,kbEqual=56,kbF1=57,kbF2=58,kbF3=59,kbF4=60,kbF5=61,
kbF6=62,kbF7=63,kbF8=64,kbF9=65,kbF10=66,kbF11=67,kbF12=68,kbHome=69,
kbUp=70,kbPgUp=71,kbLeft=72,kbRight=73,kbEnd=74,kbDown=75,kbPgDn=76,
kbInsert=77,kbDelete=78,kbCaret=79,kbAdmid=80,kbDobleQuote=81,
kbNumeral=82,kbDolar=83,kbPercent=84,kbAmper=85,kbOpenPar=86,
kbClosePar=87,kbDoubleDot=88,kbLessThan=89,kbGreaterThan=90,
kbQuestion=91,kbA_Roba=92,kbOr=93,kbUnderLine=94,kbOpenCurly=95,
kbCloseCurly=96,kbTilde=97,kbMacro=98,kbWinLeft=99,kbWinRight=100,
kbWinSel=101,
kbMouse=102,kbEterm=103
;
#endif
/* IBM BIOS flags, not all implemented in most platforms */
/*
bit 15: SysReq key pressed;
bit 14: Caps lock key currently down;
bit 13: Num lock key currently down;
bit 12: Scroll lock key currently down;
bit 11: Right alt key is down;
bit 10: Right ctrl key is down;
bit 9: Left alt key is down;
bit 8: Left ctrl key is down;
bit 7: Insert toggle;
bit 6: Caps lock toggle;
bit 5: Num lock toggle;
bit 4: Scroll lock toggle;
bit 3: Either alt key is down (some machines, left only);
bit 2: Either ctrl key is down;
bit 1: Left shift key is down;
bit 0: Right shift key is down
*/
const unsigned
kbSysReqPress =0x8000,
kbCapsLockDown =0x4000,
kbNumLockDown =0x2000,
kbScrollLockDown =0x1000,
kbRightAltDown =0x0800,
kbRightCtrlDown =0x0400,
kbLeftAltDown =0x0200,
kbLeftCtrlDown =0x0100,
kbInsertToggle =0x0080,
kbCapsLockToggle =0x0040,
kbNumLockToggle =0x0020,
kbScrollLockToggle=0x0010,
kbAltDown =0x0008,
kbCtrlDown =0x0004,
kbLeftShiftDown =0x0002,
kbRightShiftDown =0x0001;
struct TEvent;
// A class to encapsulate the globals, all is static!
class CLY_EXPORT TGKey
{
public:
TGKey() { resume(); };
static void suspend();
static void resume();
static void (*Suspend)();
static void (*Resume)();
static int (*kbhit)();
static void (*clear)();
static ushort (*gkey)();
// This is optional. Some platforms doesn't support it and the returned value
// can be outdated.
static unsigned (*getShiftState)();
static void (*fillTEvent)(TEvent &e);
// Very used by: menues and hotkeys (buttons, status bar, etc).
// Get the ascii associated to Alt+key, example Alt+A => A
static char GetAltChar(unsigned short keyCode, uchar ascii);
// The reverse (know the alt code when we know the ASCII)
static ushort GetAltCode(uchar ch);
// Find the code for the name of a key
static ushort KeyNameToNumber(char *s);
static const
char *NumberToKeyName(unsigned val);
// Alt keys interpretation
static ushort GetAltSettings(void) { return AltSet; }
static void SetAltSettings(ushort altSet) { AltSet=altSet; }
// Special functions when we must deal with international stuff like a
// shortcut in greek or cyrilic.
// When a key character is over 128 and we want to know the ascii of
// the key that generates it.
static uchar (*NonASCII2ASCII)(uchar val);
// Compares two values according to the associated ASCII.
static int (*CompareASCII)(uchar val, uchar code);
// Finds the Alt that generated it.
static int (*AltInternat2ASCII)(TEvent &event);
// Routine to setup the input code page
static int (*SetCodePage)(int id);
enum keyMode
{
// Linux styles
linuxDisableKeyPatch=1,
linuxEnableKeyPatch=2,
// DOS
// Should be incorporated to the remapping but I need volunteers
//dosUS=0,
//dosGreek737=20, No longer used
dosUseBIOS=21,
dosUseDirect=22,
dosTranslateKeypad=23,
dosNormalKeypad=24,
// UNIX styles
unixXterm=40,
unixNoXterm=41,
unixEterm=42
};
static void (*SetKbdMapping)(int version);
static int (*GetKbdMapping)(int version);
protected:
static uchar defaultNonASCII2ASCII(uchar val);
static int defaultCompareASCII(uchar val, uchar code);
static void defaultSetKbdMapping(int version);
static int defaultGetKbdMapping(int version);
static int defaultKbhit(void);
static void defaultClear(void);
static ushort defaultGkey(void);
static unsigned defaultGetShiftState();
static void defaultFillTEvent(TEvent &e);
static void defaultSuspend();
static void defaultResume();
static int defaultSetCodePage(int id);
static int defaultAltInternat2ASCII(TEvent &event);
// Greek table
static stIntCodePairs GreekKeyboard[];
// Russian table
static stIntCodePairs RussianKeyboard[];
// Generic tables
static uchar KeyMap[128];
static const uchar
kbByASCII[128];
static void FillKeyMapForCP(int id, stIntCodePairs *keyboard, size_t szKb);
static uchar Generic_NonASCII2ASCII(uchar ascii);
static int Generic_CompareASCII(uchar val, uchar code);
static int Generic_AltInternat2ASCII(TEvent &e);
// Needed for configuration.
static const char *KeyNames[];
// 0 => Left alt is used
// 1 => Right alt is used
// 2 => Both alts are the same
static ushort AltSet;
static char suspended;
//static KeyType rawCode;
// SetKbdMapping:
static int Mode;
};
extern unsigned short getshiftstate();
extern unsigned short __tv_getshiftstate();
extern unsigned short __tv_GetRaw();
extern int __tv_kbhit();
extern void __tv_clear();
#endif // GKEY_HEADER_INCLUDED
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