text: /*
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   */
  
  /** \file
   * \ingroup wm
   *
   * Panel Registry.
   *
   * \note Unlike menu, and other registries, this doesn't *own* the PanelType.
   *
   * For popups/popovers only, regions handle panel types by including them in local lists.
   */
  
  #include <stdio.h>
  
  #include "BLI_sys_types.h"
  
  #include "DNA_windowmanager_types.h"
  
  #include "BLI_utildefines.h"
  #include "BLI_ghash.h"
  
  #include "BKE_screen.h"
  
  #include "WM_api.h"
  
  static GHash *g_paneltypes_hash = NULL;
  
  PanelType *WM_paneltype_find(const char *idname, bool quiet)
  {
    PanelType *pt;
  
    if (idname[0]) {
      pt = BLI_ghash_lookup(g_paneltypes_hash, idname);
      if (pt) {
        return pt;
      }
    }
  
    if (!quiet) {
      printf("search for unknown paneltype %s\n", idname);
    }
  
    return NULL;
  }
  
  bool WM_paneltype_add(PanelType *pt)
  {
    BLI_ghash_insert(g_paneltypes_hash, pt->idname, pt);
    return true;
  }
  
  void WM_paneltype_remove(PanelType *pt)
  {
    bool ok;
  
    ok = BLI_ghash_remove(g_paneltypes_hash, pt->idname, NULL, NULL);
  
    BLI_assert(ok);
    (void)ok;
  }
  
  /* called on initialize WM_init() */
  void WM_paneltype_init(void)
  {
    /* reserve size is set based on blender default setup */
    g_paneltypes_hash = BLI_ghash_str_new_ex("g_paneltypes_hash gh", 512);
  }
  
  void WM_paneltype_clear(void)
  {
    BLI_ghash_free(g_paneltypes_hash, NULL, NULL);
  }
  