Function msAddImageSymbol

mapsymbol.c:326–385

** Little helper function to allow us to build symbol files on-the-fly ** from just a file name. ** ** Returns the symbol index or -1 if it could not be added. */

** Returns the symbol index or -1 if it could not be added.
*/
int msAddImageSymbol(symbolSetObj *symbolset, char *filename) 
{
  char szPath[MS_MAXPATHLEN];
  symbolObj *symbol=NULL;

  if(!symbolset) {
    msSetError(MS_SYMERR, "Symbol structure unallocated.", "msAddImageSymbol()");
    return(-1);
  }

  if(!filename || strlen(filename) == 0) return(-1);

  /* Allocate/init memory for new symbol if needed */
  if (msGrowSymbolSet(symbolset) == NULL)
      return -1;
  symbol = symbolset->symbol[symbolset->numsymbols];

#ifdef USE_CURL
  if (strncasecmp(filename, "http", 4) == 0)
  {
      char *tmpfullfilename = NULL;
      char *tmpfilename = NULL;
      char *tmppath = NULL;
      int status = 0;
      char szPath[MS_MAXPATHLEN];
     int bCheckLocalCache = MS_TRUE;
 
     tmppath = msTmpPath(NULL, NULL, NULL);
     if (tmppath)
     {
          tmpfilename = msEncodeUrl(filename);
          tmpfullfilename = msBuildPath(szPath, tmppath, tmpfilename);
          if (tmpfullfilename)
          {
              /*use the url for now as a caching mechanism*/
              if (msHTTPGetFile(filename, tmpfullfilename, &status, -1, bCheckLocalCache, 0) == MS_SUCCESS)
              {
                  symbol->imagepath = msStrdup(tmpfullfilename);
                  symbol->full_pixmap_path = msStrdup(tmpfullfilename);
              }
          }
          msFree(tmpfilename);
          msFree(tmppath);
     }
  }
#endif
  /*if the http did not work, allow it to be treated as a file*/
  if (!symbol->full_pixmap_path)
  {
      if(symbolset->map) {
          symbol->full_pixmap_path = msStrdup(msBuildPath(szPath, symbolset->map->mappath, filename));  
      } else {
          symbol->full_pixmap_path = msStrdup(msBuildPath(szPath, NULL, filename));  
      }
      symbol->imagepath = msStrdup(filename);
  }
  symbol->name = msStrdup(filename);
  symbol->type = MS_SYMBOL_PIXMAP;