/*
 *	$XConsortium: input.c /main/20 1996/01/14 16:52:52 kaleb $
 *	$Id: input.c,v 6.4 1996/07/12 05:01:34 kagotani Rel $
 */

/*
 * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
 *
 *                         All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted,
 * provided that the above copyright notice appear in all copies and that
 * both that copyright notice and this permission notice appear in
 * supporting documentation, and that the name of Digital Equipment
 * Corporation not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior permission.
 *
 *
 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

/* input.c */

#include "ptyx.h"		/* gets Xt headers, too */
#include <X11/keysym.h>
#include <X11/DECkeysym.h>
#include <X11/Xutil.h>
#include <stdio.h>
#include "data.h"

static char *kypd_num = " XXXXXXXX\tXXX\rXXXxxxxXXXXXXXXXXXXXXXXXXXXX*+,-./0123456789XXX=";
static char *kypd_apl = " ABCDEFGHIJKLMNOPQRSTUVWXYZ??????abcdefghijklmnopqrstuvwxyzXXX";
static char *cur = "DACB";

static int funcvalue(), sunfuncvalue();
extern Boolean sunFunctionKeys;

static void
AdjustAfterInput (screen)
register TScreen *screen;
{
	if(screen->scrollkey && screen->topline != 0)
		WindowScroll(screen, 0);
	if(screen->marginbell) {
		int col = screen->max_col - screen->nmarginbell;
		if(screen->bellarmed >= 0) {
			if(screen->bellarmed == screen->cur_row) {
			    if(screen->cur_col >= col) {
				Bell(XkbBI_MarginBell,0);
				screen->bellarmed = -1;
			    }
			} else
			    screen->bellarmed =
				screen->cur_col < col ? screen->cur_row : -1;
		} else if(screen->cur_col < col)
			screen->bellarmed = screen->cur_row;
	}
}

Input (keyboard, screen, event, eightbit)
    register TKeyboard	*keyboard;
    register TScreen	*screen;
    register XKeyEvent *event;
    Bool eightbit;
{

#ifdef KTERM
#define STRBUFSIZE 256

	char _strbuf[STRBUFSIZE+1];
	char *strbuf = &_strbuf[1];
#else /* !KTERM */
#define STRBUFSIZE 100

	char strbuf[STRBUFSIZE];
#endif /* !KTERM */
	register char *string;
	register int key = FALSE;
	int	pty	= screen->respond;
	int	nbytes;
	KeySym  keysym = 0;
	ANSI	reply;
	Status	status_return;

#ifdef KTERM
	if (!screen->xic) {
	    nbytes = XmuLookupKana (event, strbuf, STRBUFSIZE,
				    &keysym, NULL);
		if (keysym>>8 == 4 && keysym & 0x80 && nbytes == 1) {
		    /* fake ja_JP.eucJP & @im=none */
		    strbuf[-1] = SS2;
		    nbytes ++;
		    string = &strbuf[-1];
		} else {
		    string = &strbuf[0];
		}
	} else {
#endif /* KTERM */
	nbytes = XmbLookupString (screen->xic, event, strbuf, STRBUFSIZE,
				&keysym, &status_return);

	string = &strbuf[0];
#ifdef KTERM
	}
#endif /* KTERM */
	reply.a_pintro = 0;
	reply.a_final = 0;
	reply.a_nparam = 0;
	reply.a_inters = 0;

	if (keysym >= XK_KP_Home && keysym <= XK_KP_Begin) {
	    keysym += XK_Home - XK_KP_Home;
	}

	if (IsPFKey(keysym)) {
		reply.a_type = SS3;
		unparseseq(&reply, pty);
		unparseputc((char)(keysym-XK_KP_F1+'P'), pty);
		key = TRUE;
        } else if (IsCursorKey(keysym) &&
        	keysym != XK_Prior && keysym != XK_Next) {
       		if (keyboard->flags & CURSOR_APL) {
			reply.a_type = SS3;
			unparseseq(&reply, pty);
			unparseputc(cur[keysym-XK_Left], pty);
		} else {
			reply.a_type = CSI;
			reply.a_final = cur[keysym-XK_Left];
			unparseseq(&reply, pty);
		}
		key = TRUE;
	 } else if (IsFunctionKey(keysym) || IsMiscFunctionKey(keysym) ||
	 	keysym == XK_Prior || keysym == XK_Next ||
	 	keysym == DXK_Remove || keysym == XK_KP_Delete ||
		keysym == XK_KP_Insert) {
		reply.a_type = CSI;
		reply.a_nparam = 1;
		if (sunFunctionKeys) {
		    reply.a_param[0] = sunfuncvalue (keysym);
		    reply.a_final = 'z';
		} else {
		    reply.a_param[0] = funcvalue (keysym);
		    reply.a_final = '~';
		}
		if (reply.a_param[0] > 0)
			unparseseq(&reply, pty);
		key = TRUE;
	} else if (IsKeypadKey(keysym)) {
	  	if (keyboard->flags & KYPD_APL)	{
			reply.a_type   = SS3;
			unparseseq(&reply, pty);
			unparseputc(kypd_apl[keysym-XK_KP_Space], pty);
		} else
			unparseputc(kypd_num[keysym-XK_KP_Space], pty);
		key = TRUE;
	} else if (nbytes > 0) {
#ifndef KTERM_NOTEK
		if(screen->TekGIN) {
			TekEnqMouse(*string++);
			TekGINoff();
			nbytes--;
		}
#endif /* !KTERM_NOTEK */
#ifdef KTERM
		if (nbytes == 1) {
		  if (eightbit) {
		    if (screen->input_eight_bits)
		      *string |= 0x80;	/* turn on eighth bit */
		    else
		      unparseputc (033, pty);  /* escape */
		  }
		  unparseputc(*string, pty);
		} else {
			extern int convEUCtoJIS(), convEUCtoSJIS();
			extern XtermWidget term;
			Char outbuf[STRBUFSIZE];
			Char *obuf, *optr;
			int n, (*func)();
			if (term->flags & EUC_KANJI) {
				while (nbytes-- > 0)
					unparseputc(*string++, pty);
			} else {
				if (term->flags & SJIS_KANJI) {
					func = convEUCtoSJIS;
				} else {
					func = convEUCtoJIS;
				}
				string[nbytes] = '\0';
				n = (*func)(string, NULL);
				obuf = (n > STRBUFSIZE) ? (Char *)XtMalloc(n + 1) : outbuf;
				(void)(*func)(string, obuf);
				optr = obuf;
				while (*optr)
					unparseputc(*optr++, pty);
				if (obuf != outbuf)
					XtFree((char *)obuf);
			}
		}
#else /* !KTERM */
		if ((nbytes == 1) && eightbit) {
		    if (screen->input_eight_bits)
		      *string |= 0x80;	/* turn on eighth bit */
		    else
		      unparseputc (033, pty);  /* escape */
		}
		while (nbytes-- > 0)
			unparseputc(*string++, pty);
#endif /* !KTERM */
		key = TRUE;
	}
#ifdef KTERM_NOTEK
	if(key)
#else /* !KTERM_NOTEK */
	if(key && !screen->TekEmu)
#endif /* !KTERM_NOTEK */
	        AdjustAfterInput(screen);
#ifndef KTERM_NOTEK
#ifdef ENABLE_PRINT
	if (keysym == XK_F2) TekPrint();
#endif
#endif /* !KTERM_NOTEK */
	return;
}

StringInput (screen, string, nbytes)
    register TScreen	*screen;
    register char *string;
    int nbytes;
{
	int	pty	= screen->respond;

#ifndef KTERM_NOTEK
	if(nbytes && screen->TekGIN) {
		TekEnqMouse(*string++);
		TekGINoff();
		nbytes--;
	}
#endif /* !KTERM_NOTEK */
	while (nbytes-- > 0)
		unparseputc(*string++, pty);
#ifndef KTERM_NOTEK
	if(!screen->TekEmu)
#endif /* !KTERM_NOTEK */
	        AdjustAfterInput(screen);
}

static int funcvalue (keycode)
	int keycode;
{
	switch (keycode) {
		case XK_F1:	return(11);
		case XK_F2:	return(12);
		case XK_F3:	return(13);
		case XK_F4:	return(14);
		case XK_F5:	return(15);
		case XK_F6:	return(17);
		case XK_F7:	return(18);
		case XK_F8:	return(19);
		case XK_F9:	return(20);
		case XK_F10:	return(21);
		case XK_F11:	return(23);
		case XK_F12:	return(24);
		case XK_F13:	return(25);
		case XK_F14:	return(26);
		case XK_F15:	return(28);
		case XK_Help:	return(28);
		case XK_F16:	return(29);
		case XK_Menu:	return(29);
		case XK_F17:	return(31);
		case XK_F18:	return(32);
		case XK_F19:	return(33);
		case XK_F20:	return(34);

		case XK_Find :	return(1);
		case XK_Insert:	return(2);
		case XK_KP_Insert: return(2);
		case XK_Delete:	return(3);
		case XK_KP_Delete: return(3);
		case DXK_Remove: return(3);
		case XK_Select:	return(4);
		case XK_Prior:	return(5);
		case XK_Next:	return(6);
		default:	return(-1);
	}
}


static int sunfuncvalue (keycode)
	int keycode;
  {
  	switch (keycode) {
		case XK_F1:	return(224);
		case XK_F2:	return(225);
		case XK_F3:	return(226);
		case XK_F4:	return(227);
		case XK_F5:	return(228);
		case XK_F6:	return(229);
		case XK_F7:	return(230);
		case XK_F8:	return(231);
		case XK_F9:	return(232);
		case XK_F10:	return(233);
		case XK_F11:	return(192);
		case XK_F12:	return(193);
		case XK_F13:	return(194);
		case XK_F14:	return(195);
		case XK_F15:	return(196);
		case XK_Help:	return(196);
		case XK_F16:	return(197);
		case XK_Menu:	return(197);
		case XK_F17:	return(198);
		case XK_F18:	return(199);
		case XK_F19:	return(200);
		case XK_F20:	return(201);

		case XK_R1:	return(208);
		case XK_R2:	return(209);
		case XK_R3:	return(210);
		case XK_R4:	return(211);
		case XK_R5:	return(212);
		case XK_R6:	return(213);
		case XK_R7:	return(214);
		case XK_R8:	return(215);
		case XK_R9:	return(216);
		case XK_R10:	return(217);
		case XK_R11:	return(218);
		case XK_R12:	return(219);
		case XK_R13:	return(220);
		case XK_R14:	return(221);
		case XK_R15:	return(222);
  
		case XK_Find :	return(1);
		case XK_Insert:	return(2);
		case XK_KP_Insert: return(2);
		case XK_Delete:	return(3);
		case XK_KP_Delete: return(3);
		case DXK_Remove: return(3);
		case XK_Select:	return(4);
		case XK_Prior:	return(5);
		case XK_Next:	return(6);
		default:	return(-1);
	}
}