add multibyte to wide char conversion ability. Now every string

users input should should be handled propperly by rrdtool,
whatever your locale says will work.

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@584 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/configure.ac b/configure.ac
index f45a85b..c98bf69 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -193,7 +193,7 @@ AC_C_BIGENDIAN
 dnl for each function found we get a definition in config.h 
 dnl of the form HAVE_FUNCTION
 
-AC_CHECK_FUNCS(tzset opendir readdir chdir chroot getuid setlocale strerror strerror_r snprintf vsnprintf fpclass class fp_class isnan memmove strchr mktime getrusage gettimeofday)
+AC_CHECK_FUNCS(tzset mbstowcs opendir readdir chdir chroot getuid setlocale strerror strerror_r snprintf vsnprintf fpclass class fp_class isnan memmove strchr mktime getrusage gettimeofday)
 
 dnl Use mmap in rrd_update instead of seek+write
 AC_ARG_ENABLE([mmap],

diff --git a/src/rrd_gfx.c b/src/rrd_gfx.c
index eaee87f..ac33ba2 100644 (file)
--- a/src/rrd_gfx.c
+++ b/src/rrd_gfx.c
@@ -373,18 +373,32 @@ gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text
   FT_UInt       previous;
   FT_Vector     ft_pen;
 
-  gfx_string    string;
+  gfx_string    string = (gfx_string) malloc (sizeof(struct gfx_string_s));
+
   gfx_char      glyph;          /* current glyph in table */
   unsigned int  n;
   int           error;
   int        gottab = 0;    
+
+#ifdef HAVE_MBSTOWCS
+  wchar_t      *cstr;
+  size_t       clen = strlen(text)+1;
+  cstr = malloc(sizeof(wchar_t) * clen); /* yes we are allocating probably too much here, I know */
+  string->count=mbstowcs(cstr,text,clen);
+  if ( string->count == -1){
+       string->count=mbstowcs(cstr,"Enc-Err",6);
+  }
+#else
+  char         *cstr = strdup(text);
+  string->count = strlen (text);
+#endif
+
   ft_pen.x = 0;   /* start at (0,0) !! */
   ft_pen.y = 0;
 
-  string = (gfx_string) malloc (sizeof(struct gfx_string_s));
+
   string->width = 0;
   string->height = 0;
-  string->count = strlen (text);
   string->glyphs = (gfx_char) calloc (string->count,sizeof(struct gfx_char_s));
   string->num_glyphs = 0;
   string->transform.xx = (FT_Fixed)( cos(M_PI*(rotation)/180.0)*0x10000);
@@ -400,10 +414,10 @@ gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text
     /* handle the tabs ...
        have a witespace glyph inserted, but set its width such that the distance
     of the new right edge is x times tabwidth from 0,0 where x is an integer. */    
-    unsigned char letter = text[n];
+    unsigned int letter = cstr[n];
           
     gottab = 0;
-    if (letter == '\\' && n+1 < string->count && text[n+1] == 't'){
+    if (letter == '\\' && n+1 < string->count && cstr[n+1] == 't'){
             /* we have a tab here so skip the backslash and
                set t to ' ' so that we get a white space */
             gottab = 1;
@@ -419,7 +433,6 @@ gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text
     glyph->pos.x = 0;
     glyph->pos.y = 0;
     glyph->image = NULL;
-
     glyph->index = FT_Get_Char_Index( face, letter );
 
     /* compute glyph origin */
@@ -485,6 +498,7 @@ gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text
     n++;
     
   }
+  free(cstr);
 /*  printf ("number of glyphs = %d\n", string->num_glyphs);*/
   compute_string_bbox( string );
   /* the last character was a tab */  
@@ -494,7 +508,6 @@ gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text
       string->width = string->bbox.xMax - string->bbox.xMin;
   } */
   string->height = string->bbox.yMax - string->bbox.yMin;
-
   return string;
 }