/****************************************************************************
- * Copyright (c) 1998,1999 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 <curses.priv.h>
#include <ctype.h>
-#include <term.h> /* num_labels, label_*, plab_norm */
+#include <term.h> /* num_labels, label_*, plab_norm */
-MODULE_ID("$Id: lib_slk.c,v 1.17 1999/10/30 23:00:16 tom Exp $")
+MODULE_ID("$Id: lib_slk.c,v 1.31 2008/01/12 20:21:00 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() */
+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)
{
- 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));
- }
- }
- }
+ 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].ent_x, "F%d", i + 1);
+ }
}
}
+/*
+ * Free any memory related to soft labels, return an error.
+ */
+static int
+slk_failed(void)
+{
+ if (SP->_slk) {
+ FreeIfNeeded(SP->_slk->ent);
+ free(SP->_slk);
+ SP->_slk = (SLK *) 0;
+ }
+ return ERR;
+}
+
/*
* Initialize soft labels.
* Called from newterm()
*/
-int
+NCURSES_EXPORT(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;
+ int i, x;
+ int res = OK;
+ unsigned max_length;
+
+ T((T_CALLED("_nc_slk_initialize()")));
+
+ if (SP->_slk) { /* we did this already, so simply return */
+ returnCode(OK);
+ } else if ((SP->_slk = typeCalloc(SLK, 1)) == 0)
+ returnCode(ERR);
+
+ SP->_slk->ent = NULL;
+
+ /*
+ * 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_globals.slk_format));
+ SP->_slk->maxlen = ((num_labels > 0)
+ ? label_width * label_height
+ : 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)
+ returnCode(slk_failed());
+
+ max_length = SP->_slk->maxlen;
+ for (i = 0; i < SP->_slk->labcnt; i++) {
+ 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);
+ }
+ if (_nc_globals.slk_format >= 3) { /* PC style */
+ int gap = (cols - 3 * (3 + 4 * max_length)) / 2;
- if (gap < 1)
- gap = 1;
+ 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;
+ for (i = x = 0; i < SP->_slk->maxlab; i++) {
+ SP->_slk->ent[i].ent_x = x;
+ x += max_length;
+ x += (i == 3 || i == 7) ? gap : 1;
+ }
+ slk_paint_info(stwin);
+ } else {
+ if (_nc_globals.slk_format == 2) { /* 4-4 */
+ int gap = cols - (SP->_slk->maxlab * max_length) - 6;
if (gap < 1)
- 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;
+ 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 */
- int gap = (cols - (SP->_slk->maxlab * SP->_slk->maxlen) - 5) / 2;
+ } else {
+ 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;
+ 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);
+ SP->_slk->ent[i].ent_x = x;
+ x += max_length;
+ x += (i == 2 || i == 4) ? gap : 1;
}
+ } else
+ returnCode(slk_failed());
}
+ }
+ SP->_slk->dirty = TRUE;
+ if ((SP->_slk->win = stwin) == NULL) {
+ 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);
+ /* 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_globals.slk_format;
+ _nc_globals.slk_format = 0;
+ returnCode(res);
}
-
/*
* Restore the soft labels on the screen.
*/
-int
+NCURSES_EXPORT(int)
slk_restore(void)
{
- T((T_CALLED("slk_restore()")));
+ 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);
+ 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());
+ returnCode(slk_refresh());
}
projects / ncurses.git / blobdiff