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-rw-r--r--ncurses/base/lib_slkset.c149
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diff --git a/ncurses/base/lib_slkset.c b/ncurses/base/lib_slkset.c
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+/****************************************************************************
+ * Copyright (c) 1998-2005,2007 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: Juergen Pfeifer *
+ * and: Thomas E. Dickey *
+ ****************************************************************************/
+
+/*
+ * lib_slkset.c
+ * Set soft label text.
+ */
+#include <curses.priv.h>
+#include <ctype.h>
+
+#if USE_WIDEC_SUPPORT
+#if HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
+#endif
+
+MODULE_ID("$Id: lib_slkset.c,v 1.17 2007/10/13 20:08:46 tom Exp $")
+
+NCURSES_EXPORT(int)
+slk_set(int i, const char *astr, int format)
+{
+ SLK *slk;
+ int offset;
+ int numchrs;
+ int numcols;
+ int limit;
+ const char *str = astr;
+ const char *p;
+
+ T((T_CALLED("slk_set(%d, \"%s\", %d)"), i, str, format));
+
+ if (SP == 0
+ || (slk = SP->_slk) == 0
+ || i < 1
+ || i > slk->labcnt
+ || format < 0
+ || format > 2)
+ returnCode(ERR);
+ if (str == NULL)
+ str = "";
+ --i; /* Adjust numbering of labels */
+
+ limit = MAX_SKEY_LEN(SP->slk_format);
+ while (isspace(UChar(*str)))
+ str++; /* skip over leading spaces */
+ p = str;
+
+#if USE_WIDEC_SUPPORT
+ numcols = 0;
+ while (*p != 0) {
+ mbstate_t state;
+ wchar_t wc;
+ size_t need;
+
+ init_mb(state);
+ need = mbrtowc(0, p, strlen(p), &state);
+ if (need == (size_t) -1)
+ break;
+ mbrtowc(&wc, p, need, &state);
+ if (!iswprint((wint_t) wc))
+ break;
+ if (wcwidth(wc) + numcols > limit)
+ break;
+ numcols += wcwidth(wc);
+ p += need;
+ }
+ numchrs = (p - str);
+#else
+ while (isprint(UChar(*p)))
+ p++; /* The first non-print stops */
+
+ numcols = (p - str);
+ if (numcols > limit)
+ numcols = limit;
+ numchrs = numcols;
+#endif
+
+ FreeIfNeeded(slk->ent[i].ent_text);
+ if ((slk->ent[i].ent_text = strdup(str)) == 0)
+ returnCode(ERR);
+ slk->ent[i].ent_text[numchrs] = '\0';
+
+ if ((slk->ent[i].form_text = (char *) _nc_doalloc(slk->ent[i].form_text,
+ (unsigned) (limit +
+ numchrs + 1))
+ ) == 0)
+ returnCode(ERR);
+
+ switch (format) {
+ default:
+ case 0: /* left-justified */
+ offset = 0;
+ break;
+ case 1: /* centered */
+ offset = (limit - numcols) / 2;
+ break;
+ case 2: /* right-justified */
+ offset = limit - numcols;
+ break;
+ }
+ if (offset <= 0)
+ offset = 0;
+ else
+ memset(slk->ent[i].form_text, ' ', (unsigned) offset);
+
+ memcpy(slk->ent[i].form_text + offset,
+ slk->ent[i].ent_text,
+ (unsigned) numchrs);
+
+ if (offset < limit) {
+ memset(slk->ent[i].form_text + offset + numchrs,
+ ' ',
+ (unsigned) (limit - (offset + numcols)));
+ }
+
+ slk->ent[i].form_text[numchrs - numcols + limit] = 0;
+ slk->ent[i].dirty = TRUE;
+ returnCode(OK);
+}