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/* $OpenBSD: lib_slk.c,v 1.3 1999/11/28 17:49:53 millert Exp $ */
/****************************************************************************
* Copyright (c) 1998,1999 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
****************************************************************************/
/*
* lib_slk.c
* Soft key routines.
*/
#include <curses.priv.h>
#include <ctype.h>
#include <term.h> /* num_labels, label_*, plab_norm */
MODULE_ID("$From: lib_slk.c,v 1.17 1999/10/30 23:00:16 tom Exp $")
/*
* We'd like to move these into the screen context structure, but cannot,
* because slk_init() is called before initscr()/newterm().
*/
int _nc_slk_format = 0; /* one more than format specified in slk_init() */
/*
* Paint the info line for the PC style SLK emulation.
*
*/
static void
slk_paint_info(WINDOW *win)
{
if (win && SP->slk_format==4)
{
int i;
mvwhline (win,0,0,0,getmaxx(win));
wmove (win,0,0);
for (i = 0; i < SP->_slk->maxlab; i++) {
if (win && SP->slk_format==4)
{
mvwaddch(win,0,SP->_slk->ent[i].x,'F');
if (i<9)
waddch(win,'1'+i);
else
{
waddch(win,'1');
waddch(win,'0' + (i-9));
}
}
}
}
}
/*
* Initialize soft labels.
* Called from newterm()
*/
int
_nc_slk_initialize(WINDOW *stwin, int cols)
{
int i, x;
int res = OK;
char *p;
T(("slk_initialize()"));
if (SP->_slk)
{ /* we did this already, so simply return */
return(OK);
}
else
if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
return(ERR);
SP->_slk->ent = NULL;
SP->_slk->buffer = NULL;
SP->_slk->attr = A_STANDOUT;
SP->_slk->maxlab = (num_labels > 0) ?
num_labels : MAX_SKEY(_nc_slk_format);
SP->_slk->maxlen = (num_labels > 0) ?
label_width * label_height : MAX_SKEY_LEN(_nc_slk_format);
SP->_slk->labcnt = (SP->_slk->maxlab < MAX_SKEY(_nc_slk_format)) ?
MAX_SKEY(_nc_slk_format) : SP->_slk->maxlab;
SP->_slk->ent = typeCalloc(slk_ent, SP->_slk->labcnt);
if (SP->_slk->ent == NULL)
goto exception;
p = SP->_slk->buffer = (char*) calloc(2*SP->_slk->labcnt,(1+SP->_slk->maxlen));
if (SP->_slk->buffer == NULL)
goto exception;
for (i = 0; i < SP->_slk->labcnt; i++) {
SP->_slk->ent[i].text = p;
p += (1 + SP->_slk->maxlen);
SP->_slk->ent[i].form_text = p;
p += (1 + SP->_slk->maxlen);
memset(SP->_slk->ent[i].form_text, ' ', (unsigned)(SP->_slk->maxlen));
SP->_slk->ent[i].visible = (i < SP->_slk->maxlab);
}
if (_nc_slk_format >= 3) /* PC style */
{
int gap = (cols - 3 * (3 + 4*SP->_slk->maxlen))/2;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
SP->_slk->ent[i].x = x;
x += SP->_slk->maxlen;
x += (i==3 || i==7) ? gap : 1;
}
if (_nc_slk_format == 4)
slk_paint_info (stwin);
}
else {
if (_nc_slk_format == 2) { /* 4-4 */
int gap = cols - (SP->_slk->maxlab * SP->_slk->maxlen) - 6;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
SP->_slk->ent[i].x = x;
x += SP->_slk->maxlen;
x += (i == 3) ? gap : 1;
}
}
else
{
if (_nc_slk_format == 1) { /* 1 -> 3-2-3 */
int gap = (cols - (SP->_slk->maxlab * SP->_slk->maxlen) - 5) / 2;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
SP->_slk->ent[i].x = x;
x += SP->_slk->maxlen;
x += (i == 2 || i == 4) ? gap : 1;
}
}
else
goto exception;
}
}
SP->_slk->dirty = TRUE;
if ((SP->_slk->win = stwin) == NULL)
{
exception:
if (SP->_slk)
{
FreeIfNeeded(SP->_slk->buffer);
FreeIfNeeded(SP->_slk->ent);
free(SP->_slk);
SP->_slk = (SLK*)0;
res = (ERR);
}
}
/* We now reset the format so that the next newterm has again
* per default no SLK keys and may call slk_init again to
* define a new layout. (juergen 03-Mar-1999)
*/
SP->slk_format = _nc_slk_format;
_nc_slk_format = 0;
return(res);
}
/*
* Restore the soft labels on the screen.
*/
int
slk_restore(void)
{
T((T_CALLED("slk_restore()")));
if (SP->_slk == NULL)
return(ERR);
SP->_slk->hidden = FALSE;
SP->_slk->dirty = TRUE;
/* we have to repaint info line eventually */
slk_paint_info(SP->_slk->win);
returnCode(slk_refresh());
}
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