NOD_geo_menu_switch.hh

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/* SPDX-FileCopyrightText: 2024 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "DNA_node_types.h"
 
#include "NOD_socket_items.hh"
 
namespace blender::nodes {
 
struct MenuSwitchItemsAccessor {
  using ItemT = NodeEnumItem;
  static StructRNA *item_srna;
  static int node_type;
  static constexpr const char *node_idname = "GeometryNodeMenuSwitch";
  static constexpr bool has_type = false;
  static constexpr bool has_name = true;
  static constexpr bool has_single_identifier_str = true;
 
  static socket_items::SocketItemsRef<NodeEnumItem> get_items_from_node(bNode &node)
  {
    auto *storage = static_cast<NodeMenuSwitch *>(node.storage);
    return {&storage->enum_definition.items_array,
            &storage->enum_definition.items_num,
            &storage->enum_definition.active_index};
  }
 
  static void copy_item(const NodeEnumItem &src, NodeEnumItem &dst)
  {
    dst = src;
    dst.name = BLI_strdup_null(dst.name);
    dst.description = BLI_strdup_null(dst.description);
  }
 
  static void destruct_item(NodeEnumItem *item)
  {
    MEM_SAFE_FREE(item->name);
    MEM_SAFE_FREE(item->description);
  }
 
  static void blend_write(BlendWriter *writer, const bNode &node);
  static void blend_read_data(BlendDataReader *reader, bNode &node);
 
  static char **get_name(NodeEnumItem &item)
  {
    return &item.name;
  }
 
  static void init_with_name(bNode &node, NodeEnumItem &item, const char *name)
  {
    auto *storage = static_cast<NodeMenuSwitch *>(node.storage);
    item.identifier = storage->enum_definition.next_identifier++;
    socket_items::set_item_name_and_make_unique<MenuSwitchItemsAccessor>(node, item, name);
  }
 
  static std::string socket_identifier_for_item(const NodeEnumItem &item)
  {
    return "Item_" + std::to_string(item.identifier);
  }
};
 
}  // namespace blender::nodes