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/*
* lib_slk.c
* Soft key routines.
*
* Copyright (C) Gerhard Fuernkranz 1993
* Permisson is granted to redistribute this
* code under the terms of the GNU Copyleft.
*/
#include <nterm.h>
#include "curses.priv.h"
#include <string.h>
#include <stdlib.h>
int _slk_format; /* format specified in slk_init() */
#define MAXCOLUMNS 135
#define MAXLINES 66
#define UNINITIALISED ((struct try * ) -1)
/*
* Retrieve label text.
*/
char *
slk_label(int n)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_label(%d)", n);
#endif
if (slk == NULL || n < 1 || n > 8)
return NULL;
return slk->ent[n-1].text;
}
/*
* Write the soft lables to the slk window.
*/
static void
slk_intern_refresh(SLK *slk)
{
int i;
#ifdef TRACE
if (_tracing)
_tracef("slk_intern_refresh(%x)", slk);
#endif
for (i = 0; i < 8; i++) {
if (slk->dirty || slk->ent[i].dirty) {
if (slk->ent[i].visible) {
wmove(slk->win,0,slk->ent[i].x);
wattrset(slk->win,A_REVERSE);
waddstr(slk->win,slk->ent[i].form_text);
wattrset(slk->win,A_NORMAL);
}
slk->ent[i].dirty = FALSE;
}
}
slk->dirty = FALSE;
}
/*
* Refresh the soft label window.
*/
int
slk_noutrefresh(void)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_noutrefresh()");
#endif
if (slk == NULL)
return ERR;
if (slk->hidden)
return OK;
slk_intern_refresh(slk);
return wnoutrefresh(slk->win);
}
/*
* Refresh the soft label window.
*/
int
slk_refresh(void)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_refresh()");
#endif
if (slk == NULL)
return ERR;
if (slk->hidden)
return OK;
slk_intern_refresh(slk);
return wrefresh(slk->win);
}
/*
* Restore the soft labels on the screen.
*/
int
slk_restore(void)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_restore()");
#endif
if (slk == NULL)
return ERR;
slk->hidden = FALSE;
slk->dirty = TRUE;
return slk_refresh();
}
/*
* Set soft label text.
*/
int
slk_set(int i, char *str, int format)
{
SLK *slk = SP->_slk;
int len;
#ifdef TRACE
if (_tracing)
_tracef("slk_set(%d, %s, %d)", i, str, format);
#endif
if (slk == NULL || i < 1 || i > 8 || format < 0 || format > 2)
return ERR;
if (str == NULL)
str = "";
i--;
strncpy(slk->ent[i].text,str,8);
memset(slk->ent[i].form_text,' ',8);
slk->ent[i].text[8] = 0;
slk->ent[i].form_text[8] = 0;
len = strlen(slk->ent[i].text);
switch(format) {
case 0: /* left */
memcpy(slk->ent[i].form_text,slk->ent[i].text,len);
break;
case 1: /* center */
memcpy(slk->ent[i].form_text+(8-len)/2,slk->ent[i].text,len);
break;
case 2: /* right */
memcpy(slk->ent[i].form_text+8-len,slk->ent[i].text,len);
break;
}
slk->ent[i].dirty = TRUE;
return OK;
}
/*
* Pretend, that soft keys have been changed.
*/
int
slk_touch(void)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_touch()");
#endif
if (slk == NULL)
return ERR;
slk->dirty = TRUE;
return OK;
}
/*
* Remove soft labels from the screen.
*/
int
slk_clear(void)
{
SLK *slk = SP->_slk;
#ifdef TRACE
if (_tracing)
_tracef("slk_clear()");
#endif
if (slk == NULL)
return ERR;
slk->hidden = TRUE;
werase(slk->win);
return wrefresh(slk->win);
}
/*
* Initialize soft labels.
* Called from newterm()
*/
static int
slk_initialize(WINDOW *stwin, int cols)
{
SLK *slk;
int i, maxlab, x;
#ifdef TRACE
if (_tracing)
_tracef("slk_initialize()");
#endif
if ((SP->_slk = slk = (SLK*) calloc(1,sizeof(SLK))) == NULL)
return OK;
maxlab = (cols+1)/9;
for (i = 0; i < 8; i++) {
memset(slk->ent[i].form_text,' ',8);
slk->ent[i].visible = i < maxlab;
}
if (_slk_format == 1) { /* 4-4 */
int gap = cols - 64 - 6;
if (gap < 1)
gap = 1;
for (i = x = 0; i < 8; i++) {
slk->ent[i].x = x;
x += 8;
x += (i == 3) ? gap : 1;
}
}
else { /* 0 -> 3-2-3 */
int gap = (cols - 64 - 5) / 2;
if (gap < 1)
gap = 1;
for (i = x = 0; i < 8; i++) {
slk->ent[i].x = x;
x += 8;
x += (i == 2 || i == 4) ? gap : 1;
}
}
slk->dirty = TRUE;
if ((slk->win = stwin) == NULL)
{
free(slk);
return ERR;
}
return OK;
}
/*
* Initialize soft labels.
* Called by the user.
*/
int
slk_init(int format)
{
if (format < 0 || format > 1)
return ERR;
_slk_format = format;
ripoffline(-1, slk_initialize);
return OK;
}
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