X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=form%2Ffrm_driver.c;h=f335ed2611c2a7ce8578d37ecc80dfbca1190a0c;hp=67e4c39f398a0e4334d8f53591f9ec84c757bbef;hb=6af42291adceeb1bd8caab41e16762ec6d96529c;hpb=cb9a015f6669e86dd5db0fcdf1a6d74c7ea5df55

diff --git a/form/frm_driver.c b/form/frm_driver.c
index 67e4c39f..f335ed26 100644
--- a/form/frm_driver.c
+++ b/form/frm_driver.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2010,2011 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            *
@@ -32,7 +32,7 @@
 
 #include "form.priv.h"
 
-MODULE_ID("$Id: frm_driver.c,v 1.95 2009/12/05 21:45:58 Rafael.Garrido.Fernandez Exp $")
+MODULE_ID("$Id: frm_driver.c,v 1.99 2011/09/17 22:12:10 tom Exp $")
 
 /*----------------------------------------------------------------------------
   This is the core module of the form library. It contains the majority
@@ -1326,7 +1326,7 @@ _nc_Synchronize_Options(FIELD *field, Field_Options newopts)
 	      field->opts = oldopts;
 	      returnCode(E_CURRENT);
 	    }
-	  if ((form->curpage == field->page))
+	  if (form->curpage == field->page)
 	    {
 	      if (changed_opts & O_VISIBLE)
 		{
@@ -4417,7 +4417,9 @@ set_field_buffer(FIELD *field, int buffer, const char *value)
 						     * field->cols))))
 	    RETURN(E_SYSTEM_ERROR);
 
+#if !USE_WIDEC_SUPPORT
 	  len = vlen;
+#endif
 	}
     }
 
@@ -4438,7 +4440,7 @@ set_field_buffer(FIELD *field, int buffer, const char *value)
     }
   len = Buffer_Length(field);
   wclear(field->working);
-  mvwaddstr(field->working, 0, 0, value);
+  (void)mvwaddstr(field->working, 0, 0, value);
 
   if ((widevalue = typeCalloc(FIELD_CELL, len + 1)) == 0)
     {
@@ -4448,9 +4450,9 @@ set_field_buffer(FIELD *field, int buffer, const char *value)
     {
       for (i = 0; i < (unsigned)field->drows; ++i)
 	{
-	  mvwin_wchnstr(field->working, 0, i * field->dcols,
-			widevalue + (i * field->dcols),
-			field->dcols);
+	  (void)mvwin_wchnstr(field->working, 0, i * field->dcols,
+			      widevalue + (i * field->dcols),
+			      field->dcols);
 	}
       for (i = 0; i < len; ++i)
 	{
@@ -4517,7 +4519,7 @@ field_buffer(const FIELD *field, int buffer)
       /* determine the number of bytes needed to store the expanded string */
       for (n = 0; n < size; ++n)
 	{
-	  if (!isWidecExt(data[n]))
+	  if (!isWidecExt(data[n]) && data[n].chars[0] != L'\0')
 	    {
 	      mbstate_t state;
 	      size_t next;
@@ -4534,12 +4536,25 @@ field_buffer(const FIELD *field, int buffer)
 	free(field->expanded[buffer]);
       field->expanded[buffer] = typeMalloc(char, need + 1);
 
-      /* expand the multibyte data */
+      /*
+       * Expand the multibyte data.
+       *
+       * It may also be multi-column data.  In that case, the data for a row
+       * may be null-padded to align to the dcols/drows layout (or it may
+       * contain embedded wide-character extensions).  Change the null-padding
+       * to blanks as needed.
+       */
       if ((result = field->expanded[buffer]) != 0)
 	{
 	  wclear(field->working);
-	  mvwadd_wchnstr(field->working, 0, 0, data, size);
-	  mvwinnstr(field->working, 0, 0, result, (int)need);
+	  wmove(field->working, 0, 0);
+	  for (n = 0; n < size; ++n)
+	    {
+	      if (!isWidecExt(data[n]) && data[n].chars[0] != L'\0')
+		wadd_wch(field->working, &data[n]);
+	    }
+	  wmove(field->working, 0, 0);
+	  winnstr(field->working, result, (int)need);
 	}
 #else
       result = Address_Of_Nth_Buffer(field, buffer);