Page MenuHome
Differential D5819 Diff 21710 source/blender/editors/transform/transform_mode_bend.c

Changeset View

Standalone View

View Options

source/blender/editors/transform/transform_mode_bend.c

  • This file was added.
/*
* 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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
/** \file
* \ingroup edtransform
*/
#include <stdlib.h>
#include "MEM_guardedalloc.h"
#include "DNA_gpencil_types.h"
#include "BLI_math.h"
#include "BLI_string.h"
#include "BKE_context.h"
#include "BKE_unit.h"
#include "ED_screen.h"
#include "WM_types.h"
#include "WM_api.h"
#include "UI_interface.h"
#include "BLT_translation.h"
#include "transform.h"
#include "transform_snap.h"
#include "transform_mode.h"
/* -------------------------------------------------------------------- */
/* Transform (Bend) */
/** \name Transform Bend
* \{ */
struct BendCustomData {
/* All values are in global space. */
float warp_sta[3];
float warp_end[3];
float warp_nor[3];
float warp_tan[3];
/* for applying the mouse distance */
float warp_init_dist;
};
static eRedrawFlag handleEventBend(TransInfo *UNUSED(t), const wmEvent *event)
{
eRedrawFlag status = TREDRAW_NOTHING;
if (event->type == MIDDLEMOUSE && event->val == KM_PRESS) {
status = TREDRAW_HARD;
}
return status;
}
static void Bend(TransInfo *t, const int UNUSED(mval[2]))
{
float vec[3];
float pivot_global[3];
float warp_end_radius_global[3];
int i;
char str[UI_MAX_DRAW_STR];
const struct BendCustomData *data = t->custom.mode.data;
const bool is_clamp = (t->flag & T_ALT_TRANSFORM) == 0;
union {
struct {
float angle, scale;
};
float vector[2];
} values;
/* amount of radians for bend */
copy_v2_v2(values.vector, t->values);
#if 0
snapGrid(t, angle_rad);
#else
/* hrmf, snapping radius is using 'angle' steps, need to convert to something else
* this isnt essential but nicer to give reasonable snapping values for radius */
if (t->tsnap.mode & SCE_SNAP_MODE_INCREMENT) {
const float radius_snap = 0.1f;
const float snap_hack = (t->snap[1] * data->warp_init_dist) / radius_snap;
values.scale *= snap_hack;
snapGridIncrement(t, values.vector);
values.scale /= snap_hack;
}
#endif
if (applyNumInput(&t->num, values.vector)) {
values.scale = values.scale / data->warp_init_dist;
}
copy_v2_v2(t->values_final, values.vector);
/* header print for NumInput */
if (hasNumInput(&t->num)) {
char c[NUM_STR_REP_LEN * 2];
outputNumInput(&(t->num), c, &t->scene->unit);
BLI_snprintf(str,
sizeof(str),
TIP_("Bend Angle: %s Radius: %s Alt, Clamp %s"),
&c[0],
&c[NUM_STR_REP_LEN],
WM_bool_as_string(is_clamp));
}
else {
/* default header print */
BLI_snprintf(str,
sizeof(str),
TIP_("Bend Angle: %.3f Radius: %.4f, Alt, Clamp %s"),
RAD2DEGF(values.angle),
values.scale * data->warp_init_dist,
WM_bool_as_string(is_clamp));
}
values.angle *= -1.0f;
values.scale *= data->warp_init_dist;
/* calc 'data->warp_end' from 'data->warp_end_init' */
copy_v3_v3(warp_end_radius_global, data->warp_end);
dist_ensure_v3_v3fl(warp_end_radius_global, data->warp_sta, values.scale);
/* done */
/* calculate pivot */
copy_v3_v3(pivot_global, data->warp_sta);
if (values.angle > 0.0f) {
madd_v3_v3fl(pivot_global,
data->warp_tan,
-values.scale * shell_angle_to_dist((float)M_PI_2 - values.angle));
}
else {
madd_v3_v3fl(pivot_global,
data->warp_tan,
+values.scale * shell_angle_to_dist((float)M_PI_2 + values.angle));
}
/* TODO(campbell): xform, compensate object center. */
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
TransData *td = tc->data;
float warp_sta_local[3];
float warp_end_local[3];
float warp_end_radius_local[3];
float pivot_local[3];
if (tc->use_local_mat) {
sub_v3_v3v3(warp_sta_local, data->warp_sta, tc->mat[3]);
sub_v3_v3v3(warp_end_local, data->warp_end, tc->mat[3]);
sub_v3_v3v3(warp_end_radius_local, warp_end_radius_global, tc->mat[3]);
sub_v3_v3v3(pivot_local, pivot_global, tc->mat[3]);
}
else {
copy_v3_v3(warp_sta_local, data->warp_sta);
copy_v3_v3(warp_end_local, data->warp_end);
copy_v3_v3(warp_end_radius_local, warp_end_radius_global);
copy_v3_v3(pivot_local, pivot_global);
}
for (i = 0; i < tc->data_len; i++, td++) {
float mat[3][3];
float delta[3];
float fac, fac_scaled;
if (td->flag & TD_NOACTION) {
break;
}
if (td->flag & TD_SKIP) {
continue;
}
if (UNLIKELY(values.angle == 0.0f)) {
copy_v3_v3(td->loc, td->iloc);
continue;
}
copy_v3_v3(vec, td->iloc);
mul_m3_v3(td->mtx, vec);
fac = line_point_factor_v3(vec, warp_sta_local, warp_end_radius_local);
if (is_clamp) {
CLAMP(fac, 0.0f, 1.0f);
}
if (t->options & CTX_GPENCIL_STROKES) {
/* grease pencil multiframe falloff */
bGPDstroke *gps = (bGPDstroke *)td->extra;
if (gps != NULL) {
fac_scaled = fac * td->factor * gps->runtime.multi_frame_falloff;
}
else {
fac_scaled = fac * td->factor;
}
}
else {
fac_scaled = fac * td->factor;
}
axis_angle_normalized_to_mat3(mat, data->warp_nor, values.angle * fac_scaled);
interp_v3_v3v3(delta, warp_sta_local, warp_end_radius_local, fac_scaled);
sub_v3_v3(delta, warp_sta_local);
/* delta is subtracted, rotation adds back this offset */
sub_v3_v3(vec, delta);
sub_v3_v3(vec, pivot_local);
mul_m3_v3(mat, vec);
add_v3_v3(vec, pivot_local);
mul_m3_v3(td->smtx, vec);
/* rotation */
if ((t->flag & T_POINTS) == 0) {
ElementRotation(t, tc, td, mat, V3D_AROUND_LOCAL_ORIGINS);
}
/* location */
copy_v3_v3(td->loc, vec);
}
}
recalcData(t);
ED_area_status_text(t->sa, str);
}
void initBend(TransInfo *t)
{
const float mval_fl[2] = {UNPACK2(t->mval)};
const float *curs;
float tvec[3];
struct BendCustomData *data;
t->mode = TFM_BEND;
t->transform = Bend;
t->handleEvent = handleEventBend;
setInputPostFct(&t->mouse, postInputRotation);
initMouseInputMode(t, &t->mouse, INPUT_ANGLE_SPRING);
t->idx_max = 1;
t->num.idx_max = 1;
t->snap[0] = 0.0f;
t->snap[1] = SNAP_INCREMENTAL_ANGLE;
t->snap[2] = t->snap[1] * 0.2;
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;
t->num.unit_type[1] = B_UNIT_LENGTH;
t->flag |= T_NO_CONSTRAINT;
// copy_v3_v3(t->center, ED_view3d_cursor3d_get(t->scene, t->view));
if ((t->flag & T_OVERRIDE_CENTER) == 0) {
calculateCenterCursor(t, t->center_global);
}
calculateCenterLocal(t, t->center_global);
t->val = 0.0f;
data = MEM_callocN(sizeof(*data), __func__);
curs = t->scene->cursor.location;
copy_v3_v3(data->warp_sta, curs);
ED_view3d_win_to_3d((View3D *)t->sa->spacedata.first, t->ar, curs, mval_fl, data->warp_end);
copy_v3_v3(data->warp_nor, t->viewinv[2]);
normalize_v3(data->warp_nor);
/* tangent */
sub_v3_v3v3(tvec, data->warp_end, data->warp_sta);
cross_v3_v3v3(data->warp_tan, tvec, data->warp_nor);
normalize_v3(data->warp_tan);
data->warp_init_dist = len_v3v3(data->warp_end, data->warp_sta);
t->custom.mode.data = data;
t->custom.mode.use_free = true;
}
/** \} */