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/* $OpenBSD: lib_slk.c,v 1.3 1997/12/03 05:21:31 millert Exp $ */
/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
* lib_slk.c
* Soft key routines.
*/
#include <curses.priv.h>
#include <ctype.h>
#include <term.h> /* num_labels, label_*, plab_norm */
MODULE_ID("Id: lib_slk.c,v 1.13 1997/10/18 18:10:12 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; /* 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 && _nc_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 && _nc_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;
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;
#ifdef num_labels
SP->_slk->maxlab = (num_labels > 0) ? num_labels : MAX_SKEY;
SP->_slk->maxlen = (num_labels > 0) ? label_width * label_height : MAX_SKEY_LEN;
SP->_slk->labcnt = (SP->_slk->maxlab < MAX_SKEY) ? MAX_SKEY : SP->_slk->maxlab;
#else
SP->_slk->labcnt = SP->_slk->maxlab = MAX_SKEY;
SP->_slk->maxlen = MAX_SKEY_LEN;
#endif /* num_labels */
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;
return(ERR);
}
}
return(OK);
}
/*
* 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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