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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup edtransform
*/
#include <stdlib.h>
#include "BLI_math.h"
#include "BKE_context.h"
#include "BKE_editmesh.h"
#include "BKE_mesh.h"
#include "BKE_unit.h"
#include "ED_screen.h"
#include "UI_interface.h"
#include "transform.h"
#include "transform_convert.h"
#include "transform_snap.h"
#include "transform_mode.h"
/* -------------------------------------------------------------------- */
/** \name Transform (Normal Rotation)
* \{ */
static void storeCustomLNorValue(TransDataContainer *tc, BMesh *bm)
{
BMLoopNorEditDataArray *lnors_ed_arr = BM_loop_normal_editdata_array_init(bm, false);
// BMLoopNorEditData *lnor_ed = lnors_ed_arr->lnor_editdata;
tc->custom.mode.data = lnors_ed_arr;
tc->custom.mode.free_cb = freeCustomNormalArray;
}
void freeCustomNormalArray(TransInfo *t, TransDataContainer *tc, TransCustomData *custom_data)
{
BMLoopNorEditDataArray *lnors_ed_arr = custom_data->data;
if (t->state == TRANS_CANCEL) {
BMLoopNorEditData *lnor_ed = lnors_ed_arr->lnor_editdata;
BMEditMesh *em = BKE_editmesh_from_object(tc->obedit);
BMesh *bm = em->bm;
/* Restore custom loop normal on cancel */
for (int i = 0; i < lnors_ed_arr->totloop; i++, lnor_ed++) {
BKE_lnor_space_custom_normal_to_data(
bm->lnor_spacearr->lspacearr[lnor_ed->loop_index], lnor_ed->niloc, lnor_ed->clnors_data);
}
}
BM_loop_normal_editdata_array_free(lnors_ed_arr);
tc->custom.mode.data = NULL;
tc->custom.mode.free_cb = NULL;
}
/* Works by getting custom normal from clnor_data, transform, then store */
static void applyNormalRotation(TransInfo *t, const int UNUSED(mval[2]))
{
char str[UI_MAX_DRAW_STR];
float axis_final[3];
copy_v3_v3(axis_final, t->spacemtx[t->orient_axis]);
if ((t->con.mode & CON_APPLY) && t->con.applyRot) {
t->con.applyRot(t, NULL, NULL, axis_final, NULL);
}
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
BMEditMesh *em = BKE_editmesh_from_object(tc->obedit);
BMesh *bm = em->bm;
BMLoopNorEditDataArray *lnors_ed_arr = tc->custom.mode.data;
BMLoopNorEditData *lnor_ed = lnors_ed_arr->lnor_editdata;
float axis[3];
float mat[3][3];
float angle = t->values[0] + t->values_modal_offset[0];
copy_v3_v3(axis, axis_final);
transform_snap_increment(t, &angle);
applySnappingAsGroup(t, &angle);
applyNumInput(&t->num, &angle);
headerRotation(t, str, sizeof(str), angle);
axis_angle_normalized_to_mat3(mat, axis, angle);
for (int i = 0; i < lnors_ed_arr->totloop; i++, lnor_ed++) {
mul_v3_m3v3(lnor_ed->nloc, mat, lnor_ed->niloc);
BKE_lnor_space_custom_normal_to_data(
bm->lnor_spacearr->lspacearr[lnor_ed->loop_index], lnor_ed->nloc, lnor_ed->clnors_data);
}
t->values_final[0] = angle;
}
recalcData(t);
ED_area_status_text(t->area, str);
}
void initNormalRotation(TransInfo *t)
{
t->mode = TFM_NORMAL_ROTATION;
t->transform = applyNormalRotation;
initMouseInputMode(t, &t->mouse, INPUT_ANGLE);
t->idx_max = 0;
t->num.idx_max = 0;
t->snap[0] = DEG2RAD(5.0);
t->snap[1] = DEG2RAD(1.0);
copy_v3_fl(t->num.val_inc, t->snap[1]);
t->num.unit_sys = t->scene->unit.system;
t->num.unit_use_radians = (t->scene->unit.system_rotation == USER_UNIT_ROT_RADIANS);
t->num.unit_type[0] = B_UNIT_ROTATION;
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
BMEditMesh *em = BKE_editmesh_from_object(tc->obedit);
BMesh *bm = em->bm;
BKE_editmesh_ensure_autosmooth(em, tc->obedit->data);
BKE_editmesh_lnorspace_update(em, tc->obedit->data);
storeCustomLNorValue(tc, bm);
}
transform_mode_default_modal_orientation_set(t, V3D_ORIENT_VIEW);
}
/** \} */
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