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/*
* 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 editors
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
struct BMEdge;
struct BMFace;
struct BMVert;
struct ARegion;
struct Depsgraph;
struct ListBase;
struct Main;
struct Object;
struct Scene;
struct View3D;
/* transform_snap_object.c */
/* ED_transform_snap_object_*** API */
typedef enum eSnapSelect {
SNAP_ALL = 0,
SNAP_NOT_SELECTED = 1,
SNAP_NOT_ACTIVE = 2,
} eSnapSelect;
/** used for storing multiple hits */
struct SnapObjectHitDepth {
struct SnapObjectHitDepth *next, *prev;
float depth;
float co[3];
float no[3];
int index;
struct Object *ob;
float obmat[4][4];
/* needed to tell which ray-cast this was part of,
* the same object may be part of many ray-casts when dupli's are used. */
unsigned int ob_uuid;
};
/** parameters that define which objects will be used to snap. */
struct SnapObjectParams {
/* special context sensitive handling for the active or selected object */
char snap_select;
/* use editmode cage */
unsigned int use_object_edit_cage : 1;
/* snap to the closest element, use when using more than one snap type */
unsigned int use_occlusion_test : 1;
/* exclude back facing geometry from snapping */
unsigned int use_backface_culling : 1;
};
typedef struct SnapObjectContext SnapObjectContext;
SnapObjectContext *ED_transform_snap_object_context_create(struct Scene *scene, int flag);
SnapObjectContext *ED_transform_snap_object_context_create_view3d(struct Scene *scene,
int flag,
/* extra args for view3d */
const struct ARegion *region,
const struct View3D *v3d);
void ED_transform_snap_object_context_destroy(SnapObjectContext *sctx);
/* callbacks to filter how snap works */
void ED_transform_snap_object_context_set_editmesh_callbacks(
SnapObjectContext *sctx,
bool (*test_vert_fn)(struct BMVert *, void *user_data),
bool (*test_edge_fn)(struct BMEdge *, void *user_data),
bool (*test_face_fn)(struct BMFace *, void *user_data),
void *user_data);
bool ED_transform_snap_object_project_ray_ex(struct SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const struct SnapObjectParams *params,
const float ray_start[3],
const float ray_normal[3],
float *ray_depth,
/* return args */
float r_loc[3],
float r_no[3],
int *r_index,
struct Object **r_ob,
float r_obmat[4][4]);
bool ED_transform_snap_object_project_ray(SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const struct SnapObjectParams *params,
const float ray_origin[3],
const float ray_direction[3],
float *ray_depth,
float r_co[3],
float r_no[3]);
bool ED_transform_snap_object_project_ray_all(SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const struct SnapObjectParams *params,
const float ray_start[3],
const float ray_normal[3],
float ray_depth,
bool sort,
struct ListBase *r_hit_list);
short ED_transform_snap_object_project_view3d_ex(struct SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const unsigned short snap_to,
const struct SnapObjectParams *params,
const float mval[2],
const float prev_co[3],
float *dist_px,
float r_loc[3],
float r_no[3],
int *r_index,
struct Object **r_ob,
float r_obmat[4][4]);
bool ED_transform_snap_object_project_view3d(struct SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const unsigned short snap_to,
const struct SnapObjectParams *params,
const float mval[2],
const float prev_co[3],
float *dist_px,
/* return args */
float r_loc[3],
float r_no[3]);
bool ED_transform_snap_object_project_all_view3d_ex(SnapObjectContext *sctx,
struct Depsgraph *depsgraph,
const struct SnapObjectParams *params,
const float mval[2],
float ray_depth,
bool sort,
ListBase *r_hit_list);
#ifdef __cplusplus
}
#endif
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