/****************************************************************************
- * Copyright (c) 1998-2000,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2008 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 *
****************************************************************************/
/****************************************************************************
- * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
- * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * Authors: *
+ * Gerhard Fuernkranz 1993 (original) *
+ * Zeyd M. Ben-Halim 1992,1995 (sic) *
+ * Eric S. Raymond *
+ * Juergen Pfeifer 1996-on *
+ * Thomas E. Dickey *
****************************************************************************/
/*
#include <ctype.h>
#include <term.h> /* num_labels, label_*, plab_norm */
-MODULE_ID("$Id: lib_slk.c,v 1.24 2002/09/28 17:46:40 tom Exp $")
+MODULE_ID("$Id: lib_slk.c,v 1.35 2008/09/27 14:07:33 juergen Exp $")
/*
- * We'd like to move these into the screen context structure, but cannot,
- * because slk_init() is called before initscr()/newterm().
+ * Free any memory related to soft labels, return an error.
*/
-NCURSES_EXPORT_VAR(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)
+static int
+slk_failed(void)
{
- 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++) {
- mvwprintw(win, 0, SP->_slk->ent[i].x, "F%d", i + 1);
- }
+ if (SP->_slk) {
+ FreeIfNeeded(SP->_slk->ent);
+ free(SP->_slk);
+ SP->_slk = (SLK *) 0;
}
+ return ERR;
}
/*
{
int i, x;
int res = OK;
- char *p;
unsigned max_length;
- T(("slk_initialize()"));
+ T((T_CALLED("_nc_slk_initialize()")));
if (SP->_slk) { /* we did this already, so simply return */
- return (OK);
+ returnCode(OK);
} else if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
- return (ERR);
+ returnCode(ERR);
SP->_slk->ent = NULL;
- SP->_slk->buffer = NULL;
- SP->_slk->attr = A_STANDOUT;
+
+ /*
+ * If we use colors, vidputs() will suppress video attributes that conflict
+ * with colors. In that case, we're still guaranteed that "reverse" would
+ * work.
+ */
+ if ((no_color_video & 1) == 0)
+ SetAttr(SP->_slk->attr, A_STANDOUT);
+ else
+ SetAttr(SP->_slk->attr, A_REVERSE);
SP->_slk->maxlab = ((num_labels > 0)
? num_labels
- : MAX_SKEY(_nc_slk_format));
+ : MAX_SKEY(_nc_globals.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)
+ : MAX_SKEY_LEN(_nc_globals.slk_format));
+ SP->_slk->labcnt = ((SP->_slk->maxlab < MAX_SKEY(_nc_globals.slk_format))
+ ? MAX_SKEY(_nc_globals.slk_format)
: SP->_slk->maxlab);
if (SP->_slk->maxlen <= 0
|| SP->_slk->labcnt <= 0
|| (SP->_slk->ent = typeCalloc(slk_ent,
(unsigned) SP->_slk->labcnt)) == NULL)
- goto exception;
+ returnCode(slk_failed());
max_length = SP->_slk->maxlen;
- p = SP->_slk->buffer = (char *) calloc((unsigned) (2 * SP->_slk->labcnt),
- (1 + max_length));
- if (SP->_slk->buffer == NULL)
- goto exception;
-
for (i = 0; i < SP->_slk->labcnt; i++) {
- SP->_slk->ent[i].text = p;
- p += (1 + max_length);
- SP->_slk->ent[i].form_text = p;
- p += (1 + max_length);
+ size_t used = max_length + 1;
+
+ if ((SP->_slk->ent[i].ent_text = (char *) _nc_doalloc(0, used)) == 0)
+ returnCode(slk_failed());
+ memset(SP->_slk->ent[i].ent_text, 0, used);
+
+ if ((SP->_slk->ent[i].form_text = (char *) _nc_doalloc(0, used)) == 0)
+ returnCode(slk_failed());
+ memset(SP->_slk->ent[i].form_text, 0, used);
+
memset(SP->_slk->ent[i].form_text, ' ', max_length);
- SP->_slk->ent[i].visible = (i < SP->_slk->maxlab);
+ SP->_slk->ent[i].visible = (char) (i < SP->_slk->maxlab);
}
- if (_nc_slk_format >= 3) { /* PC style */
+ if (_nc_globals.slk_format >= 3) { /* PC style */
int gap = (cols - 3 * (3 + 4 * max_length)) / 2;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
- SP->_slk->ent[i].x = x;
+ SP->_slk->ent[i].ent_x = x;
x += max_length;
x += (i == 3 || i == 7) ? gap : 1;
}
- slk_paint_info(stwin);
} else {
- if (_nc_slk_format == 2) { /* 4-4 */
+ if (_nc_globals.slk_format == 2) { /* 4-4 */
int gap = cols - (SP->_slk->maxlab * max_length) - 6;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
- SP->_slk->ent[i].x = x;
+ SP->_slk->ent[i].ent_x = x;
x += max_length;
x += (i == 3) ? gap : 1;
}
} else {
- if (_nc_slk_format == 1) { /* 1 -> 3-2-3 */
+ if (_nc_globals.slk_format == 1) { /* 1 -> 3-2-3 */
int gap = (cols - (SP->_slk->maxlab * max_length) - 5)
/ 2;
if (gap < 1)
gap = 1;
for (i = x = 0; i < SP->_slk->maxlab; i++) {
- SP->_slk->ent[i].x = x;
+ SP->_slk->ent[i].ent_x = x;
x += max_length;
x += (i == 2 || i == 4) ? gap : 1;
}
} else
- goto exception;
+ returnCode(slk_failed());
}
}
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);
- }
+ returnCode(slk_failed());
}
/* 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);
+ SP->slk_format = _nc_globals.slk_format;
+ _nc_globals.slk_format = 0;
+ returnCode(res);
}
/*
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());
}
projects / ncurses.git / blobdiff