/* SPDX-License-Identifier: GPL-2.0-or-later
 * Copyright 2008 Blender Foundation. All rights reserved. */

/** \file
 * \ingroup editors
 */

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

struct Base;
struct MetaElem;
struct Object;
struct SelectPick_Params;
struct UndoType;
struct bContext;
struct wmKeyConfig;

void ED_operatortypes_metaball(void);
void ED_operatormacros_metaball(void);
void ED_keymap_metaball(struct wmKeyConfig *keyconf);

/**
 * Add meta-element primitive to meta-ball object (which is in edit mode).
 */
struct MetaElem *ED_mball_add_primitive(struct bContext *C,
                                        struct Object *obedit,
                                        bool obedit_is_new,
                                        float mat[4][4],
                                        float dia,
                                        int type);

struct Base *ED_mball_base_and_elem_from_select_buffer(struct Base **bases,
                                                       uint bases_len,
                                                       const uint select_id,
                                                       struct MetaElem **r_ml);

/**
 * Select meta-element with mouse click (user can select radius circle or stiffness circle).
 *
 * \return True when pick finds an element or the selection changed.
 */
bool ED_mball_select_pick(struct bContext *C,
                          const int mval[2],
                          const struct SelectPick_Params *params);

bool ED_mball_deselect_all_multi_ex(struct Base **bases, uint bases_len);
bool ED_mball_deselect_all_multi(struct bContext *C);

/**
 * This function is used to free all MetaElems from MetaBall.
 */
void ED_mball_editmball_free(struct Object *obedit);
/**
 * This function is called, when MetaBall Object is switched from object mode to edit mode.
 */
void ED_mball_editmball_make(struct Object *obedit);
/**
 * This function is called, when MetaBall Object switched from edit mode to object mode.
 * List of MetaElements is copied from object->data->edit_elems to object->data->elems.
 */
void ED_mball_editmball_load(struct Object *obedit);

/* editmball_undo.c */

/** Export for ED_undo_sys. */
void ED_mball_undosys_type(struct UndoType *ut);

#define MBALLSEL_STIFF (1u << 30)
#define MBALLSEL_RADIUS (1u << 31)
#define MBALLSEL_ANY (MBALLSEL_STIFF | MBALLSEL_RADIUS)

#ifdef __cplusplus
}
#endif