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/**
* @namespace biew
* @file events.c
* @brief This file contains console event handler of BIEW project.
* @version -
* @remark this source file is part of Binary vIEW project (BIEW).
* The Binary vIEW (BIEW) is copyright (C) 1995 Nick Kurshev.
* All rights reserved. This software is redistributable under the
* licence given in the file "Licence.en" ("Licence.ru" in russian
* translation) distributed in the BIEW archive.
* @note Requires POSIX compatible development system
*
* @author Nick Kurshev
* @since 1995
* @note Development, fixes and improvements
**/
#include <limits.h>
#include <string.h>
#include "bconsole.h"
#include "biewlib/kbd_code.h"
#include "biewlib/biewlib.h"
static int KB_Buff[64];
static size_t KB_freq = 0;
int __FASTCALL__ IsKbdTerminate( void )
{
int ch = 0;
if(__kbdTestKey(0)) ch = __kbdGetKey(0);
return ch == KE_ESCAPE;
}
static tAbsCoord mx,my;
static int __NEAR__ __FASTCALL__ getPromptKey(int flag)
{
int ret;
if(mx <= 7) ret = KE_F(1);
else
if(mx <= 15) ret = KE_F(2);
else
if(mx <= 23) ret = KE_F(3);
else
if(mx <= 31) ret = KE_F(4);
else
if(mx <= 39) ret = KE_F(5);
else
if(mx <= 47) ret = KE_F(6);
else
if(mx <= 55) ret = KE_F(7);
else
if(mx <= 63) ret = KE_F(8);
else
if(mx <= 71) ret = KE_F(9);
else ret = KE_F(10);
if(flag & KS_SHIFT) ret += KE_SHIFT_F(1) - KE_F(1);
else
if(flag & KS_ALT) ret += KE_ALT_F(1) - KE_F(1);
else
if(flag & KS_CTRL) ret += KE_CTL_F(1) - KE_F(1);
return ret;
}
extern unsigned long biew_kbdFlags;
static int __NEAR__ __FASTCALL__ __GetEvent( void (*prompt)(void) ,TWindow *win)
{
static unsigned char oFlag = UCHAR_MAX;
static void (* oprompt)(void) = 0;
unsigned char Flag;
int key;
/** Unconditional repaint prompt */
Flag = __kbdGetShiftsKey();
if(Flag != oFlag || oprompt !=prompt)
{
oFlag = Flag; oprompt = prompt;
if(prompt) (*prompt)();
}
while(1)
{
key = __kbdGetKey(biew_kbdFlags);
switch( key )
{
case KE_SHIFTKEYS:
Flag = __kbdGetShiftsKey();
if(Flag != oFlag || oprompt !=prompt)
{
oFlag = Flag; oprompt = prompt;
if(prompt) (*prompt)();
}
break;
case KE_MOUSE:
__MsGetPos(&mx,&my);
if((__MsGetBtns() & MS_LEFTPRESS) == MS_LEFTPRESS)
{
if(my == (unsigned)(tvioHeight - 1))
{
while(1)
{
if((__MsGetBtns() & MS_LEFTPRESS) != MS_LEFTPRESS) break;
__MsGetPos(&mx,&my);
}
if(my != (unsigned)(tvioHeight - 1)) continue;
return getPromptKey(__kbdGetShiftsKey());
}
else
{
tAbsCoord X1,Y1,X2,Y2;
unsigned wdh,hght;
if(win)
{
twGetWinPos(win,&X1,&Y1,&X2,&Y2);
X1--; Y1--; X2--; Y2--;
}
else
{
X1 = 0; X2 = tvioWidth; Y1 = 1; Y2 = tvioHeight - 1;
}
wdh = X2 - X1;
hght = Y2 - Y1;
if(win && (mx < X1 || mx > X2 || my < Y1 || my > Y2))
{
while(1)
{
if((__MsGetBtns() & MS_LEFTPRESS) != MS_LEFTPRESS) break;
}
return KE_ESCAPE;
}
if(my <= Y2 && my >= Y1 + 3*hght/4) return KE_DOWNARROW;
else
if(my >= Y1 && my <= Y1 + hght/4) return KE_UPARROW;
else
if(mx <= X2 && mx >= X1 + 3*wdh/4) return KE_RIGHTARROW;
else
if(mx >= X1 && mx <= X1 + wdh/4) return KE_LEFTARROW;
}
}
default: return key;
}
}
return key;
}
static void __NEAR__ __FASTCALL__ __GetEventQue(void (*prompt)(void), TWindow *win)
{
int key;
key = __GetEvent(prompt,win);
if(KB_freq < sizeof(KB_Buff)/sizeof(int)) KB_Buff[KB_freq++] = key;
}
int __FASTCALL__ GetEvent( void (*prompt)(void) ,TWindow * win)
{
int key;
while(!KB_freq) __GetEventQue(prompt,win);
key = KB_Buff[0];
--KB_freq;
if(KB_freq) memmove(KB_Buff,&KB_Buff[1],KB_freq-1);
return key;
}
void __FASTCALL__ PostEvent(int code)
{
if(KB_freq < sizeof(KB_Buff)/sizeof(int)) KB_Buff[KB_freq++] = code;
}
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