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deb-goldedplus/goldlib/gall/gkbdbase.h

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2000-02-25 10:15:17 +00:00
// This may look like C code, but it is really -*- C++ -*-
// ------------------------------------------------------------------
// The Goldware Library
// Copyright (C) 1990-1999 Odinn Sorensen
// Copyright (C) 1999-2000 Alexander S. Aganichev
// ------------------------------------------------------------------
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307, USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// Keyboard functions.
// ------------------------------------------------------------------
#ifndef __gkbdbase_h
#define __gkbdbase_h
// ------------------------------------------------------------------
#include <gtimall.h>
// ------------------------------------------------------------------
// Simple types
typedef word gkey;
// ------------------------------------------------------------------
// Keycode object
inline gkey& KCodKey(gkey &key) { return key; }
inline byte& KCodAsc(gkey &key) { return *(((byte *)&key)+0); }
inline byte& KCodScn(gkey &key) { return *(((byte *)&key)+1); }
// ------------------------------------------------------------------
// Definition of kbuf record
struct KBuf {
KBuf* prev; // previous record
KBuf* next; // next record
gkey xch; // keypress
};
// ------------------------------------------------------------------
// Definition of onkey record
struct KBnd {
KBnd* prev; // pointer to previous record
KBnd* next; // pointer to next record
gkey keycode; // Scan/ASCII code of trap key
VfvCP func; // address of onkey function
gkey pass; // key to pass back, 0=don't pass
};
// ------------------------------------------------------------------
// Definition of keyboard info record
class GKbd {
public:
KBuf* kbuf; // Pointer to head record in key buffer
KBnd* onkey; // Pointer to head record in onkey list
KBnd* curronkey; // Pointer to current onkey record
int inmenu; // In-menu flag used by menuing functions
int source; // Source of keypress 0=kb, 1=kbuf, 2=mouse
int extkbd; // Extended keyboard 0=none, 1=yes
int polling; // Keyboard polling enabled
Clock tickinterval; // Minimum interval between ticks
Clock tickvalue; // Value from last tick
VfvCP tickfunc; // Function to call when a tick is generated
Clock tickpress; // Tick value at last keypress
bool inidle; // In-idle flag used by tickfunc
bool quitall; // Quit-all flag for menus etc.
void Init();
GKbd();
~GKbd();
};
extern GKbd gkbd;
// ------------------------------------------------------------------
// Keyboard status codes returned from kbstat()
#define RSHIFT 1 // right shift pressed
#define LSHIFT 2 // left shift pressed
#define GCTRL 4 // [Ctrl] pressed
#define ALT 8 // [Alt] pressed
#define SCRLOCK 16 // [Scroll Lock] toggled
#define NUMLOCK 32 // [Num Lock] toggled
#define CAPSLOCK 64 // [Caps Lock] toggled
#define INS 128 // [Ins] toggled
// ------------------------------------------------------------------
extern gkey scancode_table[];
extern bool right_alt_same_as_left;
// ------------------------------------------------------------------
// Function prototypes
KBnd* chgonkey (KBnd* kblist);
void clearkeys ();
void freonkey ();
int setonkey (gkey keycode, VfvCP func, gkey pass);
gkey getxch (int __tick=false);
void kbclear ();
gkey kbmhit ();
gkey kbxget (int mode=0);
gkey kbxhit ();
int kbput (gkey xch);
word kbput_ (gkey xch);
void kbputs_ (char* str);
byte scancode (gkey ch);
gkey waitkey ();
gkey waitkeyt (int duration);
gkey key_tolower(gkey __keycode);
gkey keyscanxlat(gkey k);
gkey __kbxget(int __mode=0, long __ticks=0, VfvCP __idlefunc=NULL);
void gkbdtickpressreset();
void gkbdtickvaluereset();
// ------------------------------------------------------------------
// Inline functions
inline gkey getxchtick() { return getxch(true); }
inline void kbdsettickfunc(VfvCP func) { gkbd.tickfunc = func; }
// ------------------------------------------------------------------
// Shorthand definitions of keyboard scancodes
#define KEY_BRK 0xFFFF // ^Break return from _KeyHit()/_KeyGet()
// ------------------------------------------------------------------
#endif
// ------------------------------------------------------------------