asset_library_reference_enum.cc

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "BLI_listbase.h"
 
#include "BKE_preferences.h"
 
#include "DNA_userdef_types.h"
 
#include "UI_resources.hh"
 
#include "RNA_define.hh"
#include "RNA_enum_types.hh"
 
#include "ED_asset_library.hh"
 
namespace blender::ed::asset {
 
int library_reference_to_enum_value(const AssetLibraryReference *library)
{
  /* Simple case: Predefined repository, just set the value. */
  if (library->type < ASSET_LIBRARY_CUSTOM) {
    return library->type;
  }
 
  /* Note that the path isn't checked for validity here. If an invalid library path is used, the
   * Asset Browser can give a nice hint on what's wrong. */
  const bUserAssetLibrary *user_library = BKE_preferences_asset_library_find_index(
      &U, library->custom_library_index);
  if (user_library) {
    return ASSET_LIBRARY_CUSTOM + library->custom_library_index;
  }
 
  return ASSET_LIBRARY_LOCAL;
}
 
AssetLibraryReference library_reference_from_enum_value(int value)
{
  AssetLibraryReference library;
 
  /* Simple case: Predefined repository, just set the value. */
  if (value < ASSET_LIBRARY_CUSTOM) {
    library.type = value;
    library.custom_library_index = -1;
    BLI_assert(ELEM(value, ASSET_LIBRARY_ALL, ASSET_LIBRARY_LOCAL, ASSET_LIBRARY_ESSENTIALS));
    return library;
  }
 
  const bUserAssetLibrary *user_library = BKE_preferences_asset_library_find_index(
      &U, value - ASSET_LIBRARY_CUSTOM);
 
  /* Note that there is no check if the path exists here. If an invalid library path is used, the
   * Asset Browser can give a nice hint on what's wrong. */
  if (!user_library) {
    library.type = ASSET_LIBRARY_ALL;
    library.custom_library_index = -1;
  }
  else {
    const bool is_valid = (user_library->name[0] && user_library->dirpath[0]);
    if (is_valid) {
      library.custom_library_index = value - ASSET_LIBRARY_CUSTOM;
      library.type = ASSET_LIBRARY_CUSTOM;
    }
  }
  return library;
}
 
const EnumPropertyItem *library_reference_to_rna_enum_itemf(const bool include_generated)
{
  EnumPropertyItem *item = nullptr;
  int totitem = 0;
 
  if (include_generated) {
    /* Add predefined libraries that are generated and not simple directories that can be written
     * to. */
    BLI_assert(rna_enum_asset_library_type_items[0].value == ASSET_LIBRARY_ALL);
    RNA_enum_item_add(&item, &totitem, &rna_enum_asset_library_type_items[0]);
    RNA_enum_item_add_separator(&item, &totitem);
 
    BLI_assert(rna_enum_asset_library_type_items[1].value == ASSET_LIBRARY_LOCAL);
    RNA_enum_item_add(&item, &totitem, &rna_enum_asset_library_type_items[1]);
    BLI_assert(rna_enum_asset_library_type_items[2].value == ASSET_LIBRARY_ESSENTIALS);
    RNA_enum_item_add(&item, &totitem, &rna_enum_asset_library_type_items[2]);
  }
 
  /* Add separator if needed. */
  if (!BLI_listbase_is_empty(&U.asset_libraries)) {
    RNA_enum_item_add_separator(&item, &totitem);
  }
 
  int i;
  LISTBASE_FOREACH_INDEX (bUserAssetLibrary *, user_library, &U.asset_libraries, i) {
    /* Note that the path itself isn't checked for validity here. If an invalid library path is
     * used, the Asset Browser can give a nice hint on what's wrong. */
    const bool is_valid = (user_library->name[0] && user_library->dirpath[0]);
    if (!is_valid) {
      continue;
    }
 
    AssetLibraryReference library_reference;
    library_reference.type = ASSET_LIBRARY_CUSTOM;
    library_reference.custom_library_index = i;
 
    const int enum_value = library_reference_to_enum_value(&library_reference);
    /* Use library path as description, it's a nice hint for users. */
    EnumPropertyItem tmp = {
        enum_value, user_library->name, ICON_NONE, user_library->name, user_library->dirpath};
    RNA_enum_item_add(&item, &totitem, &tmp);
  }
 
  RNA_enum_item_end(&item, &totitem);
  return item;
}
 
}  // namespace blender::ed::asset