fl_file_browser.cxx

SRI international 发布的OAA框架软件

    fl_color(fl_inactive(c));

  for (t = line->txt, ptr = fragment; *t != '\0'; t ++)
    if (*t == '\n')
    {
      // Newline - nul terminate this fragment and draw it...
      *ptr = '\0';

      fl_draw(fragment, X + width, Y, W - width, fl_height(),
              (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0);

      // Point back to the start of the fragment...
      ptr    = fragment;
      width  = 0;
      Y      += fl_height();
      column = 0;
    }
    else if (*t == column_char())
    {
      // Tab - nul terminate this fragment and draw it...
      *ptr = '\0';

      int cW = W - width; // Clip width...

      if (columns)
      {
        // Try clipping inside this column...
	for (i = 0; i < column && columns[i]; i ++);

        if (columns[i])
          cW = columns[i];
      }

      fl_draw(fragment, X + width, Y, cW, fl_height(),
              (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0);

      // Advance to the next column...
      column ++;
      if (columns)
      {
	for (i = 0, width = 0; i < column && columns[i]; i ++)
	  width += columns[i];
      }
      else
        width = column * (int)(fl_height() * 0.6 * 8.0);

      ptr = fragment;
    }
    else
      *ptr++ = *t;

  if (ptr > fragment)
  {
    // Nul terminate this fragment and draw it...
    *ptr = '\0';

    fl_draw(fragment, X + width, Y, W - width, fl_height(),
            (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_CLIP), 0, 0);
  }
}


//
// 'Fl_File_Browser::Fl_File_Browser()' - Create a Fl_File_Browser widget.
//

Fl_File_Browser::Fl_File_Browser(int        X,  // I - Upper-lefthand X coordinate
                        	 int        Y,  // I - Upper-lefthand Y coordinate
				 int        W,  // I - Width in pixels
				 int        H,  // I - Height in pixels
				 const char *l)	// I - Label text
    : Fl_Browser(X, Y, W, H, l)
{
  // Initialize the filter pattern, current directory, and icon size...
  pattern_   = "*";
  directory_ = "";
  iconsize_  = (uchar)(3 * textsize() / 2);
  filetype_  = FILES;
}


//
// 'Fl_File_Browser::load()' - Load a directory into the browser.
//

int						// O - Number of files loaded
Fl_File_Browser::load(const char     *directory,// I - Directory to load
                      Fl_File_Sort_F *sort)	// I - Sort function to use
{
  int		i;				// Looping var
  int		num_files;			// Number of files in directory
  int		num_dirs;			// Number of directories in list
  char		filename[4096];			// Current file
  Fl_File_Icon	*icon;				// Icon to use


//  printf("Fl_File_Browser::load(\"%s\")\n", directory);

  clear();
  directory_ = directory;

  if (directory_[0] == '\0')
  {
    //
    // No directory specified; for UNIX list all mount points.  For DOS
    // list all valid drive letters...
    //

    num_files = 0;
    if ((icon = Fl_File_Icon::find("any", Fl_File_Icon::DEVICE)) == NULL)
      icon = Fl_File_Icon::find("any", Fl_File_Icon::DIRECTORY);

#ifdef WIN32
#  ifdef __CYGWIN__
    //
    // Cygwin provides an implementation of setmntent() to get the list
    // of available drives...
    //
    FILE          *m = setmntent("/-not-used-", "r");
    struct mntent *p;

    while ((p = getmntent (m)) != NULL) {
      add(p->mnt_dir, icon);
      num_files ++;
    }

    endmntent(m);
#  else
    //
    // Normal WIN32 code uses drive bits...
    //
    DWORD	drives;		// Drive available bits

    drives = GetLogicalDrives();
    for (i = 'A'; i <= 'Z'; i ++, drives >>= 1)
      if (drives & 1)
      {
        sprintf(filename, "%c:/", i);

	if (i < 'C')
	  add(filename, icon);
	else
	  add(filename, icon);

	num_files ++;
      }
#  endif // __CYGWIN__
#elif defined(__EMX__)
    //
    // OS/2 code uses drive bits...
    //
    ULONG	curdrive;	// Current drive
    ULONG	drives;		// Drive available bits
    int		start = 3;      // 'C' (MRS - dunno if this is correct!)


    DosQueryCurrentDisk(&curdrive, &drives);
    drives >>= start - 1;
    for (i = 'A'; i <= 'Z'; i ++, drives >>= 1)
      if (drives & 1)
      {
        sprintf(filename, "%c:/", i);
        add(filename, icon);

	num_files ++;
      }
#elif defined(__APPLE__) && !defined(__MWERKS__)
    // MacOS X and Darwin use getfsstat() system call...
    int			numfs;	// Number of file systems
    struct statfs	*fs;	// Buffer for file system info


    numfs = getfsstat(NULL, 0, MNT_NOWAIT);
    if (numfs > 0) {
      // We have file systems, get them...
      fs = new struct statfs[numfs];
      getfsstat(fs, sizeof(struct statfs) * numfs, MNT_NOWAIT);

      // Add filesystems to the list...
      for (i = 0; i < numfs; i ++) {
        if (fs[i].f_mntonname[1]) {
          snprintf(filename, sizeof(filename), "%s/", fs[i].f_mntonname);
          add(filename, icon);
        } else {
          add("/", icon);
        }
        num_files ++;
      }

      // Free the memory used for the file system info array...
      delete[] fs;
    }
#else
    //
    // UNIX code uses /etc/fstab or similar...
    //
    FILE	*mtab;		// /etc/mtab or /etc/mnttab file
    char	line[1024];	// Input line

    //
    // Open the file that contains a list of mounted filesystems...
    //

    mtab = fopen("/etc/mnttab", "r");	// Fairly standard
    if (mtab == NULL)
      mtab = fopen("/etc/mtab", "r");	// More standard
    if (mtab == NULL)
      mtab = fopen("/etc/fstab", "r");	// Otherwise fallback to full list
    if (mtab == NULL)
      mtab = fopen("/etc/vfstab", "r");	// Alternate full list file

    if (mtab != NULL)
    {
      while (fgets(line, sizeof(line), mtab) != NULL)
      {
        if (line[0] == '#' || line[0] == '\n')
	  continue;
        if (sscanf(line, "%*s%4095s", filename) != 1)
	  continue;

        strlcat(filename, "/", sizeof(filename));

//        printf("Fl_File_Browser::load() - adding \"%s\" to list...\n", filename);
        add(filename, icon);
	num_files ++;
      }

      fclose(mtab);
    }
#endif // WIN32 || __EMX__
  }
  else
  {
    dirent	**files;	// Files in in directory


    //
    // Build the file list...
    //

#if (defined(WIN32) && !defined(__CYGWIN__)) || defined(__EMX__)
    strlcpy(filename, directory_, sizeof(filename));
    i = strlen(filename) - 1;

    if (i == 2 && filename[1] == ':' &&
        (filename[2] == '/' || filename[2] == '\\'))
      filename[2] = '/';
    else if (filename[i] != '/' && filename[i] != '\\')
      strlcat(filename, "/", sizeof(filename));

    num_files = fl_filename_list(filename, &files, sort);
#else
    num_files = fl_filename_list(directory_, &files, sort);
#endif /* WIN32 || __EMX__ */

    if (num_files <= 0)
      return (0);

    for (i = 0, num_dirs = 0; i < num_files; i ++)
    {
#if 0
      if (strcmp(files[i]->d_name, ".") != 0 &&
          strcmp(files[i]->d_name, "..") != 0)
#else
      if (strcmp(files[i]->d_name, ".") != 0)
#endif // 0
      {
	snprintf(filename, sizeof(filename), "%s/%s", directory_,
	         files[i]->d_name);

#if defined(WIN32) && !defined(__CYGWIN__)
	if (files[i]->d_name[strlen(files[i]->d_name) - 1] == '/')
	{
          num_dirs ++;
          insert(num_dirs, files[i]->d_name, Fl_File_Icon::find(filename));
	}
#else
	if (fl_filename_isdir(filename))
	{
	  char name[1024]; // Temporary directory name

	  snprintf(name, sizeof(name), "%s/", files[i]->d_name);

          num_dirs ++;
          insert(num_dirs, name, Fl_File_Icon::find(filename));
	}
#endif // WIN32 && !__CYGWIN__
	else if (filetype_ == FILES &&
	         fl_filename_match(files[i]->d_name, pattern_))
          add(files[i]->d_name, Fl_File_Icon::find(filename));
      }

      free(files[i]);
    }

    free(files);
  }

  return (num_files);
}


//
// 'Fl_File_Browser::filter()' - Set the filename filter.
//

void
Fl_File_Browser::filter(const char *pattern)	// I - Pattern string
{
  // If pattern is NULL set the pattern to "*"...
  if (pattern)
    pattern_ = pattern;
  else
    pattern_ = "*";

  // Reload the current directory...
  load(directory_);
}


//
// End of "$Id: Fl_File_Browser.cxx,v 1.1.1.1 2003/06/03 22:25:42 agno Exp $".
//