Function UpdateGraphicsListbox

Descent3/pilot.cpp:2404–2492

UpdateGraphicsListbox Updates the listbox that contains the custom textures. Make sure all double-pointer arguments passes in are set to NULL is they don't have memory allocated for them yet, because if they're not null this function will try to free up their memory

//	are set to NULL is they don't have memory allocated for them yet, because if they're not null this function
//	will try to free up their memory
bool UpdateGraphicsListbox(tCustomListInfo *cust_bmps, newuiListBox *lb, char *selected_name) {
  ASSERT(lb);
  lb->RemoveAll();

  cust_bmps->Reset();
  cust_bmps->custom_bitmap_list = lb;

  // get a list of custom textures
  int count = 0;
  bool ok_to_get_files;
  int total_files = 0;

  // build list
  char oldpath[_MAX_PATH];

  ddio_GetWorkingDir(oldpath, _MAX_PATH);

  if (ddio_SetWorkingDir(LocalCustomGraphicsDir))
    ok_to_get_files = true;
  else
    ok_to_get_files = false;

  if (ok_to_get_files) {
    // Get all the filenames
    int totalsize, size;
    int count, totalcount;

    //.oaf
    //.ogf
    count = totalcount = totalsize = total_files = 0;

    totalsize += FindAllFilesSize("*.oaf", &count);
    totalcount += count;
    totalsize += FindAllFilesSize("*.ogf", &count);
    totalcount += count;

    if (totalsize) {
      cust_bmps->needed_size = totalsize;
      total_files = totalcount;
      cust_bmps->files = (char *)mem_malloc(totalsize);
      if (cust_bmps->files) {
        size = 0;
        count = 0;

        size += FindAllFiles("*.oaf", &cust_bmps->files[size], totalcount, &count);
        totalcount -= count;
        size += FindAllFiles("*.ogf", &cust_bmps->files[size], totalcount, &count);
        totalcount -= count;
      } else
        mprintf(0, "Unable to allocate memory for %d bytes\n", totalsize);
    }
  }

  count = total_files + 1; // make room for "None"

  char chosen_name[256], ext[256];
  if (selected_name) {
    ddio_SplitPath(selected_name, NULL, chosen_name, ext);