Bastien Montagne
3bad243cb8
Ways how it was resetting its values (backspace) was far from satisfaying. Now, e.g. when scaling, it will reset at 1 (or whatever mouse-value it was before entering numinput), instead of some ugly 0.0 value. Implementation details: * Values passed to applyNumInput() are stored as default ones (val_org), if it is not EDITED. * applyNumInput() returns a boolean saying whether it actually set values or not. * When backspace hits its ultimate step (where it clears all EDITED flags and reset all default values), it sets a temp FAKE_EDITED flag that will be used to apply one last time values of numinput (so that default values actually get applied!). There are important things to note here for code using numinput: * Values passed to applyNumInput() should be valid and are stored as default ones (val_org), if it is not EDITED. * bool returned by applyNumInput should be used to decide whether to apply numinput-specific post-process to data. * *Once applyNumInput has been called*, hasNumInput returns a valid value to decide whether to use numinput as drawstr source or not. Those two steps have to be separated (so do not use a common call to hasNumInput() to do both in the same time!).
1103 lines
27 KiB
C
1103 lines
27 KiB
C
/*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* 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.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): none yet.
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
/** \file blender/editors/transform/transform_constraints.c
|
|
* \ingroup edtransform
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#ifndef WIN32
|
|
# include <unistd.h>
|
|
#else
|
|
# include <io.h>
|
|
#endif
|
|
|
|
#include "DNA_object_types.h"
|
|
#include "DNA_scene_types.h"
|
|
#include "DNA_screen_types.h"
|
|
#include "DNA_space_types.h"
|
|
#include "DNA_view3d_types.h"
|
|
|
|
#include "BIF_gl.h"
|
|
#include "BIF_glutil.h"
|
|
|
|
#include "BLI_math.h"
|
|
#include "BLI_utildefines.h"
|
|
#include "BLI_string.h"
|
|
|
|
#include "BKE_context.h"
|
|
|
|
#include "ED_image.h"
|
|
#include "ED_view3d.h"
|
|
|
|
#include "BLF_translation.h"
|
|
|
|
#include "UI_resources.h"
|
|
|
|
#include "transform.h"
|
|
|
|
static void drawObjectConstraint(TransInfo *t);
|
|
|
|
/* ************************** CONSTRAINTS ************************* */
|
|
static void constraintAutoValues(TransInfo *t, float vec[3])
|
|
{
|
|
int mode = t->con.mode;
|
|
if (mode & CON_APPLY) {
|
|
float nval = (t->flag & T_NULL_ONE) ? 1.0f : 0.0f;
|
|
|
|
if ((mode & CON_AXIS0) == 0) {
|
|
vec[0] = nval;
|
|
}
|
|
if ((mode & CON_AXIS1) == 0) {
|
|
vec[1] = nval;
|
|
}
|
|
if ((mode & CON_AXIS2) == 0) {
|
|
vec[2] = nval;
|
|
}
|
|
}
|
|
}
|
|
|
|
void constraintNumInput(TransInfo *t, float vec[3])
|
|
{
|
|
int mode = t->con.mode;
|
|
if (mode & CON_APPLY) {
|
|
float nval = (t->flag & T_NULL_ONE) ? 1.0f : 0.0f;
|
|
|
|
if (getConstraintSpaceDimension(t) == 2) {
|
|
int axis = mode & (CON_AXIS0 | CON_AXIS1 | CON_AXIS2);
|
|
if (axis == (CON_AXIS0 | CON_AXIS1)) {
|
|
/* vec[0] = vec[0]; */ /* same */
|
|
/* vec[1] = vec[1]; */ /* same */
|
|
vec[2] = nval;
|
|
}
|
|
else if (axis == (CON_AXIS1 | CON_AXIS2)) {
|
|
vec[2] = vec[1];
|
|
vec[1] = vec[0];
|
|
vec[0] = nval;
|
|
}
|
|
else if (axis == (CON_AXIS0 | CON_AXIS2)) {
|
|
/* vec[0] = vec[0]; */ /* same */
|
|
vec[2] = vec[1];
|
|
vec[1] = nval;
|
|
}
|
|
}
|
|
else if (getConstraintSpaceDimension(t) == 1) {
|
|
if (mode & CON_AXIS0) {
|
|
/* vec[0] = vec[0]; */ /* same */
|
|
vec[1] = nval;
|
|
vec[2] = nval;
|
|
}
|
|
else if (mode & CON_AXIS1) {
|
|
vec[1] = vec[0];
|
|
vec[0] = nval;
|
|
vec[2] = nval;
|
|
}
|
|
else if (mode & CON_AXIS2) {
|
|
vec[2] = vec[0];
|
|
vec[0] = nval;
|
|
vec[1] = nval;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void postConstraintChecks(TransInfo *t, float vec[3], float pvec[3])
|
|
{
|
|
int i = 0;
|
|
|
|
mul_m3_v3(t->con.imtx, vec);
|
|
|
|
snapGridIncrement(t, vec);
|
|
|
|
if (t->num.flag & T_NULL_ONE) {
|
|
if (!(t->con.mode & CON_AXIS0))
|
|
vec[0] = 1.0f;
|
|
|
|
if (!(t->con.mode & CON_AXIS1))
|
|
vec[1] = 1.0f;
|
|
|
|
if (!(t->con.mode & CON_AXIS2))
|
|
vec[2] = 1.0f;
|
|
}
|
|
|
|
if (applyNumInput(&t->num, vec)) {
|
|
constraintNumInput(t, vec);
|
|
removeAspectRatio(t, vec);
|
|
}
|
|
|
|
/* autovalues is operator param, use that directly but not if snapping is forced */
|
|
if (t->flag & T_AUTOVALUES && (t->tsnap.status & SNAP_FORCED) == 0) {
|
|
mul_v3_m3v3(vec, t->con.imtx, t->auto_values);
|
|
constraintAutoValues(t, vec);
|
|
/* inverse transformation at the end */
|
|
}
|
|
|
|
if (t->con.mode & CON_AXIS0) {
|
|
pvec[i++] = vec[0];
|
|
}
|
|
if (t->con.mode & CON_AXIS1) {
|
|
pvec[i++] = vec[1];
|
|
}
|
|
if (t->con.mode & CON_AXIS2) {
|
|
pvec[i++] = vec[2];
|
|
}
|
|
|
|
mul_m3_v3(t->con.mtx, vec);
|
|
}
|
|
|
|
static void viewAxisCorrectCenter(TransInfo *t, float t_con_center[3])
|
|
{
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
// View3D *v3d = t->sa->spacedata.first;
|
|
const float min_dist = 1.0f; /* v3d->near; */
|
|
float dir[3];
|
|
float l;
|
|
|
|
sub_v3_v3v3(dir, t_con_center, t->viewinv[3]);
|
|
if (dot_v3v3(dir, t->viewinv[2]) < 0.0f) {
|
|
negate_v3(dir);
|
|
}
|
|
project_v3_v3v3(dir, dir, t->viewinv[2]);
|
|
|
|
l = len_v3(dir);
|
|
|
|
if (l < min_dist) {
|
|
float diff[3];
|
|
normalize_v3_v3(diff, t->viewinv[2]);
|
|
mul_v3_fl(diff, min_dist - l);
|
|
|
|
sub_v3_v3(t_con_center, diff);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void axisProjection(TransInfo *t, const float axis[3], const float in[3], float out[3])
|
|
{
|
|
float norm[3], vec[3], factor, angle;
|
|
float t_con_center[3];
|
|
|
|
if (is_zero_v3(in)) {
|
|
return;
|
|
}
|
|
|
|
copy_v3_v3(t_con_center, t->con.center);
|
|
|
|
/* checks for center being too close to the view center */
|
|
viewAxisCorrectCenter(t, t_con_center);
|
|
|
|
angle = fabsf(angle_v3v3(axis, t->viewinv[2]));
|
|
if (angle > (float)M_PI / 2.0f) {
|
|
angle = (float)M_PI - angle;
|
|
}
|
|
angle = RAD2DEGF(angle);
|
|
|
|
/* For when view is parallel to constraint... will cause NaNs otherwise
|
|
* So we take vertical motion in 3D space and apply it to the
|
|
* constraint axis. Nice for camera grab + MMB */
|
|
if (angle < 5.0f) {
|
|
project_v3_v3v3(vec, in, t->viewinv[1]);
|
|
factor = dot_v3v3(t->viewinv[1], vec) * 2.0f;
|
|
/* since camera distance is quite relative, use quadratic relationship. holding shift can compensate */
|
|
if (factor < 0.0f) factor *= -factor;
|
|
else factor *= factor;
|
|
|
|
copy_v3_v3(out, axis);
|
|
normalize_v3(out);
|
|
mul_v3_fl(out, -factor); /* -factor makes move down going backwards */
|
|
}
|
|
else {
|
|
float v[3], i1[3], i2[3];
|
|
float v2[3], v4[3];
|
|
float norm_center[3];
|
|
float plane[3];
|
|
|
|
getViewVector(t, t_con_center, norm_center);
|
|
cross_v3_v3v3(plane, norm_center, axis);
|
|
|
|
project_v3_v3v3(vec, in, plane);
|
|
sub_v3_v3v3(vec, in, vec);
|
|
|
|
add_v3_v3v3(v, vec, t_con_center);
|
|
getViewVector(t, v, norm);
|
|
|
|
/* give arbitrary large value if projection is impossible */
|
|
factor = dot_v3v3(axis, norm);
|
|
if (1.0f - fabsf(factor) < 0.0002f) {
|
|
copy_v3_v3(out, axis);
|
|
if (factor > 0) {
|
|
mul_v3_fl(out, 1000000000.0f);
|
|
}
|
|
else {
|
|
mul_v3_fl(out, -1000000000.0f);
|
|
}
|
|
}
|
|
else {
|
|
add_v3_v3v3(v2, t_con_center, axis);
|
|
add_v3_v3v3(v4, v, norm);
|
|
|
|
isect_line_line_v3(t_con_center, v2, v, v4, i1, i2);
|
|
|
|
sub_v3_v3v3(v, i2, v);
|
|
|
|
sub_v3_v3v3(out, i1, t_con_center);
|
|
|
|
/* possible some values become nan when
|
|
* viewpoint and object are both zero */
|
|
if (!finite(out[0])) out[0] = 0.0f;
|
|
if (!finite(out[1])) out[1] = 0.0f;
|
|
if (!finite(out[2])) out[2] = 0.0f;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void planeProjection(TransInfo *t, const float in[3], float out[3])
|
|
{
|
|
float vec[3], factor, norm[3];
|
|
|
|
add_v3_v3v3(vec, in, t->con.center);
|
|
getViewVector(t, vec, norm);
|
|
|
|
sub_v3_v3v3(vec, out, in);
|
|
|
|
factor = dot_v3v3(vec, norm);
|
|
if (fabsf(factor) <= 0.001f) {
|
|
return; /* prevent divide by zero */
|
|
}
|
|
factor = dot_v3v3(vec, vec) / factor;
|
|
|
|
copy_v3_v3(vec, norm);
|
|
mul_v3_fl(vec, factor);
|
|
|
|
add_v3_v3v3(out, in, vec);
|
|
}
|
|
|
|
/*
|
|
* Generic callback for constant spatial constraints applied to linear motion
|
|
*
|
|
* The IN vector in projected into the constrained space and then further
|
|
* projected along the view vector.
|
|
* (in perspective mode, the view vector is relative to the position on screen)
|
|
*
|
|
*/
|
|
|
|
static void applyAxisConstraintVec(TransInfo *t, TransData *td, const float in[3], float out[3], float pvec[3])
|
|
{
|
|
copy_v3_v3(out, in);
|
|
if (!td && t->con.mode & CON_APPLY) {
|
|
mul_m3_v3(t->con.pmtx, out);
|
|
|
|
// With snap, a projection is alright, no need to correct for view alignment
|
|
if (!(t->tsnap.mode != SCE_SNAP_MODE_INCREMENT && activeSnap(t))) {
|
|
if (getConstraintSpaceDimension(t) == 2) {
|
|
if (out[0] != 0.0f || out[1] != 0.0f || out[2] != 0.0f) {
|
|
planeProjection(t, in, out);
|
|
}
|
|
}
|
|
else if (getConstraintSpaceDimension(t) == 1) {
|
|
float c[3];
|
|
|
|
if (t->con.mode & CON_AXIS0) {
|
|
copy_v3_v3(c, t->con.mtx[0]);
|
|
}
|
|
else if (t->con.mode & CON_AXIS1) {
|
|
copy_v3_v3(c, t->con.mtx[1]);
|
|
}
|
|
else if (t->con.mode & CON_AXIS2) {
|
|
copy_v3_v3(c, t->con.mtx[2]);
|
|
}
|
|
axisProjection(t, c, in, out);
|
|
}
|
|
}
|
|
postConstraintChecks(t, out, pvec);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Generic callback for object based spatial constraints applied to linear motion
|
|
*
|
|
* At first, the following is applied to the first data in the array
|
|
* The IN vector in projected into the constrained space and then further
|
|
* projected along the view vector.
|
|
* (in perspective mode, the view vector is relative to the position on screen)
|
|
*
|
|
* Further down, that vector is mapped to each data's space.
|
|
*/
|
|
|
|
static void applyObjectConstraintVec(TransInfo *t, TransData *td, const float in[3], float out[3], float pvec[3])
|
|
{
|
|
copy_v3_v3(out, in);
|
|
if (t->con.mode & CON_APPLY) {
|
|
if (!td) {
|
|
mul_m3_v3(t->con.pmtx, out);
|
|
if (getConstraintSpaceDimension(t) == 2) {
|
|
if (out[0] != 0.0f || out[1] != 0.0f || out[2] != 0.0f) {
|
|
planeProjection(t, in, out);
|
|
}
|
|
}
|
|
else if (getConstraintSpaceDimension(t) == 1) {
|
|
float c[3];
|
|
|
|
if (t->con.mode & CON_AXIS0) {
|
|
copy_v3_v3(c, t->con.mtx[0]);
|
|
}
|
|
else if (t->con.mode & CON_AXIS1) {
|
|
copy_v3_v3(c, t->con.mtx[1]);
|
|
}
|
|
else if (t->con.mode & CON_AXIS2) {
|
|
copy_v3_v3(c, t->con.mtx[2]);
|
|
}
|
|
axisProjection(t, c, in, out);
|
|
}
|
|
postConstraintChecks(t, out, pvec);
|
|
copy_v3_v3(out, pvec);
|
|
}
|
|
else {
|
|
int i = 0;
|
|
|
|
out[0] = out[1] = out[2] = 0.0f;
|
|
if (t->con.mode & CON_AXIS0) {
|
|
out[0] = in[i++];
|
|
}
|
|
if (t->con.mode & CON_AXIS1) {
|
|
out[1] = in[i++];
|
|
}
|
|
if (t->con.mode & CON_AXIS2) {
|
|
out[2] = in[i++];
|
|
}
|
|
|
|
mul_m3_v3(td->axismtx, out);
|
|
if (t->flag & T_EDIT) {
|
|
mul_m3_v3(t->obedit_mat, out);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Generic callback for constant spatial constraints applied to resize motion
|
|
*/
|
|
|
|
static void applyAxisConstraintSize(TransInfo *t, TransData *td, float smat[3][3])
|
|
{
|
|
if (!td && t->con.mode & CON_APPLY) {
|
|
float tmat[3][3];
|
|
|
|
if (!(t->con.mode & CON_AXIS0)) {
|
|
smat[0][0] = 1.0f;
|
|
}
|
|
if (!(t->con.mode & CON_AXIS1)) {
|
|
smat[1][1] = 1.0f;
|
|
}
|
|
if (!(t->con.mode & CON_AXIS2)) {
|
|
smat[2][2] = 1.0f;
|
|
}
|
|
|
|
mul_m3_m3m3(tmat, smat, t->con.imtx);
|
|
mul_m3_m3m3(smat, t->con.mtx, tmat);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Callback for object based spatial constraints applied to resize motion
|
|
*/
|
|
|
|
static void applyObjectConstraintSize(TransInfo *t, TransData *td, float smat[3][3])
|
|
{
|
|
if (td && t->con.mode & CON_APPLY) {
|
|
float tmat[3][3];
|
|
float imat[3][3];
|
|
|
|
invert_m3_m3(imat, td->axismtx);
|
|
|
|
if (!(t->con.mode & CON_AXIS0)) {
|
|
smat[0][0] = 1.0f;
|
|
}
|
|
if (!(t->con.mode & CON_AXIS1)) {
|
|
smat[1][1] = 1.0f;
|
|
}
|
|
if (!(t->con.mode & CON_AXIS2)) {
|
|
smat[2][2] = 1.0f;
|
|
}
|
|
|
|
mul_m3_m3m3(tmat, smat, imat);
|
|
if (t->flag & T_EDIT) {
|
|
mul_m3_m3m3(smat, t->obedit_mat, smat);
|
|
}
|
|
mul_m3_m3m3(smat, td->axismtx, tmat);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Generic callback for constant spatial constraints applied to rotations
|
|
*
|
|
* The rotation axis is copied into VEC.
|
|
*
|
|
* In the case of single axis constraints, the rotation axis is directly the one constrained to.
|
|
* For planar constraints (2 axis), the rotation axis is the normal of the plane.
|
|
*
|
|
* The following only applies when CON_NOFLIP is not set.
|
|
* The vector is then modified to always point away from the screen (in global space)
|
|
* This insures that the rotation is always logically following the mouse.
|
|
* (ie: not doing counterclockwise rotations when the mouse moves clockwise).
|
|
*/
|
|
|
|
static void applyAxisConstraintRot(TransInfo *t, TransData *td, float vec[3], float *angle)
|
|
{
|
|
if (!td && t->con.mode & CON_APPLY) {
|
|
int mode = t->con.mode & (CON_AXIS0 | CON_AXIS1 | CON_AXIS2);
|
|
|
|
switch (mode) {
|
|
case CON_AXIS0:
|
|
case (CON_AXIS1 | CON_AXIS2):
|
|
copy_v3_v3(vec, t->con.mtx[0]);
|
|
break;
|
|
case CON_AXIS1:
|
|
case (CON_AXIS0 | CON_AXIS2):
|
|
copy_v3_v3(vec, t->con.mtx[1]);
|
|
break;
|
|
case CON_AXIS2:
|
|
case (CON_AXIS0 | CON_AXIS1):
|
|
copy_v3_v3(vec, t->con.mtx[2]);
|
|
break;
|
|
}
|
|
/* don't flip axis if asked to or if num input */
|
|
if (angle && (mode & CON_NOFLIP) == 0 && hasNumInput(&t->num) == 0) {
|
|
if (dot_v3v3(vec, t->viewinv[2]) > 0.0f) {
|
|
*angle = -(*angle);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Callback for object based spatial constraints applied to rotations
|
|
*
|
|
* The rotation axis is copied into VEC.
|
|
*
|
|
* In the case of single axis constraints, the rotation axis is directly the one constrained to.
|
|
* For planar constraints (2 axis), the rotation axis is the normal of the plane.
|
|
*
|
|
* The following only applies when CON_NOFLIP is not set.
|
|
* The vector is then modified to always point away from the screen (in global space)
|
|
* This insures that the rotation is always logically following the mouse.
|
|
* (ie: not doing counterclockwise rotations when the mouse moves clockwise).
|
|
*/
|
|
|
|
static void applyObjectConstraintRot(TransInfo *t, TransData *td, float vec[3], float *angle)
|
|
{
|
|
if (t->con.mode & CON_APPLY) {
|
|
int mode = t->con.mode & (CON_AXIS0 | CON_AXIS1 | CON_AXIS2);
|
|
float tmp_axismtx[3][3];
|
|
float (*axismtx)[3];
|
|
|
|
/* on setup call, use first object */
|
|
if (td == NULL) {
|
|
td = t->data;
|
|
}
|
|
|
|
if (t->flag & T_EDIT) {
|
|
mul_m3_m3m3(tmp_axismtx, t->obedit_mat, td->axismtx);
|
|
axismtx = tmp_axismtx;
|
|
}
|
|
else {
|
|
axismtx = td->axismtx;
|
|
}
|
|
|
|
switch (mode) {
|
|
case CON_AXIS0:
|
|
case (CON_AXIS1 | CON_AXIS2):
|
|
copy_v3_v3(vec, axismtx[0]);
|
|
break;
|
|
case CON_AXIS1:
|
|
case (CON_AXIS0 | CON_AXIS2):
|
|
copy_v3_v3(vec, axismtx[1]);
|
|
break;
|
|
case CON_AXIS2:
|
|
case (CON_AXIS0 | CON_AXIS1):
|
|
copy_v3_v3(vec, axismtx[2]);
|
|
break;
|
|
}
|
|
if (angle && (mode & CON_NOFLIP) == 0 && hasNumInput(&t->num) == 0) {
|
|
if (dot_v3v3(vec, t->viewinv[2]) > 0.0f) {
|
|
*angle = -(*angle);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*--------------------- INTERNAL SETUP CALLS ------------------*/
|
|
|
|
void setConstraint(TransInfo *t, float space[3][3], int mode, const char text[])
|
|
{
|
|
BLI_strncpy(t->con.text + 1, text, sizeof(t->con.text) - 1);
|
|
copy_m3_m3(t->con.mtx, space);
|
|
t->con.mode = mode;
|
|
getConstraintMatrix(t);
|
|
|
|
startConstraint(t);
|
|
|
|
t->con.drawExtra = NULL;
|
|
t->con.applyVec = applyAxisConstraintVec;
|
|
t->con.applySize = applyAxisConstraintSize;
|
|
t->con.applyRot = applyAxisConstraintRot;
|
|
t->redraw = TREDRAW_HARD;
|
|
}
|
|
|
|
/* applies individual td->axismtx constraints */
|
|
void setAxisMatrixConstraint(TransInfo *t, int mode, const char text[])
|
|
{
|
|
if (t->total == 1) {
|
|
float axismtx[3][3];
|
|
if (t->flag & T_EDIT) {
|
|
mul_m3_m3m3(axismtx, t->obedit_mat, t->data->axismtx);
|
|
}
|
|
else {
|
|
copy_m3_m3(axismtx, t->data->axismtx);
|
|
}
|
|
|
|
setConstraint(t, axismtx, mode, text);
|
|
}
|
|
else {
|
|
BLI_strncpy(t->con.text + 1, text, sizeof(t->con.text) - 1);
|
|
copy_m3_m3(t->con.mtx, t->data->axismtx);
|
|
t->con.mode = mode;
|
|
getConstraintMatrix(t);
|
|
|
|
startConstraint(t);
|
|
|
|
t->con.drawExtra = drawObjectConstraint;
|
|
t->con.applyVec = applyObjectConstraintVec;
|
|
t->con.applySize = applyObjectConstraintSize;
|
|
t->con.applyRot = applyObjectConstraintRot;
|
|
t->redraw = TREDRAW_HARD;
|
|
}
|
|
}
|
|
|
|
void setLocalConstraint(TransInfo *t, int mode, const char text[])
|
|
{
|
|
/* edit-mode now allows local transforms too */
|
|
if (t->flag & T_EDIT) {
|
|
setConstraint(t, t->obedit_mat, mode, text);
|
|
}
|
|
else {
|
|
setAxisMatrixConstraint(t, mode, text);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set the constraint according to the user defined orientation
|
|
*
|
|
* ftext is a format string passed to BLI_snprintf. It will add the name of
|
|
* the orientation where %s is (logically).
|
|
*/
|
|
void setUserConstraint(TransInfo *t, short orientation, int mode, const char ftext[])
|
|
{
|
|
char text[40];
|
|
|
|
switch (orientation) {
|
|
case V3D_MANIP_GLOBAL:
|
|
{
|
|
float mtx[3][3] = MAT3_UNITY;
|
|
BLI_snprintf(text, sizeof(text), ftext, IFACE_("global"));
|
|
setConstraint(t, mtx, mode, text);
|
|
break;
|
|
}
|
|
case V3D_MANIP_LOCAL:
|
|
BLI_snprintf(text, sizeof(text), ftext, IFACE_("local"));
|
|
setLocalConstraint(t, mode, text);
|
|
break;
|
|
case V3D_MANIP_NORMAL:
|
|
BLI_snprintf(text, sizeof(text), ftext, IFACE_("normal"));
|
|
if (checkUseAxisMatrix(t)) {
|
|
setAxisMatrixConstraint(t, mode, text);
|
|
}
|
|
else {
|
|
setConstraint(t, t->spacemtx, mode, text);
|
|
}
|
|
break;
|
|
case V3D_MANIP_VIEW:
|
|
BLI_snprintf(text, sizeof(text), ftext, IFACE_("view"));
|
|
setConstraint(t, t->spacemtx, mode, text);
|
|
break;
|
|
case V3D_MANIP_GIMBAL:
|
|
BLI_snprintf(text, sizeof(text), ftext, IFACE_("gimbal"));
|
|
setConstraint(t, t->spacemtx, mode, text);
|
|
break;
|
|
default: /* V3D_MANIP_CUSTOM */
|
|
BLI_snprintf(text, sizeof(text), ftext, t->spacename);
|
|
setConstraint(t, t->spacemtx, mode, text);
|
|
break;
|
|
}
|
|
|
|
t->con.orientation = orientation;
|
|
|
|
t->con.mode |= CON_USER;
|
|
}
|
|
|
|
/*----------------- DRAWING CONSTRAINTS -------------------*/
|
|
|
|
void drawConstraint(TransInfo *t)
|
|
{
|
|
TransCon *tc = &(t->con);
|
|
|
|
if (!ELEM3(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE, SPACE_NODE))
|
|
return;
|
|
if (!(tc->mode & CON_APPLY))
|
|
return;
|
|
if (t->flag & T_USES_MANIPULATOR)
|
|
return;
|
|
if (t->flag & T_NO_CONSTRAINT)
|
|
return;
|
|
|
|
/* nasty exception for Z constraint in camera view */
|
|
// TRANSFORM_FIX_ME
|
|
// if ((t->flag & T_OBJECT) && G.vd->camera==OBACT && G.vd->persp==V3D_CAMOB)
|
|
// return;
|
|
|
|
if (tc->drawExtra) {
|
|
tc->drawExtra(t);
|
|
}
|
|
else {
|
|
if (tc->mode & CON_SELECT) {
|
|
float vec[3];
|
|
char col2[3] = {255, 255, 255};
|
|
int depth_test_enabled;
|
|
|
|
convertViewVec(t, vec, (t->mval[0] - t->con.imval[0]), (t->mval[1] - t->con.imval[1]));
|
|
add_v3_v3(vec, tc->center);
|
|
|
|
drawLine(t, tc->center, tc->mtx[0], 'X', 0);
|
|
drawLine(t, tc->center, tc->mtx[1], 'Y', 0);
|
|
drawLine(t, tc->center, tc->mtx[2], 'Z', 0);
|
|
|
|
glColor3ubv((GLubyte *)col2);
|
|
|
|
depth_test_enabled = glIsEnabled(GL_DEPTH_TEST);
|
|
if (depth_test_enabled)
|
|
glDisable(GL_DEPTH_TEST);
|
|
|
|
setlinestyle(1);
|
|
glBegin(GL_LINE_STRIP);
|
|
glVertex3fv(tc->center);
|
|
glVertex3fv(vec);
|
|
glEnd();
|
|
setlinestyle(0);
|
|
|
|
if (depth_test_enabled)
|
|
glEnable(GL_DEPTH_TEST);
|
|
}
|
|
|
|
if (tc->mode & CON_AXIS0) {
|
|
drawLine(t, tc->center, tc->mtx[0], 'X', DRAWLIGHT);
|
|
}
|
|
if (tc->mode & CON_AXIS1) {
|
|
drawLine(t, tc->center, tc->mtx[1], 'Y', DRAWLIGHT);
|
|
}
|
|
if (tc->mode & CON_AXIS2) {
|
|
drawLine(t, tc->center, tc->mtx[2], 'Z', DRAWLIGHT);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* called from drawview.c, as an extra per-window draw option */
|
|
void drawPropCircle(const struct bContext *C, TransInfo *t)
|
|
{
|
|
if (t->flag & T_PROP_EDIT) {
|
|
RegionView3D *rv3d = CTX_wm_region_view3d(C);
|
|
float tmat[4][4], imat[4][4];
|
|
float center[3];
|
|
int depth_test_enabled;
|
|
|
|
UI_ThemeColor(TH_GRID);
|
|
|
|
if (t->spacetype == SPACE_VIEW3D && rv3d != NULL) {
|
|
copy_m4_m4(tmat, rv3d->viewmat);
|
|
invert_m4_m4(imat, tmat);
|
|
}
|
|
else {
|
|
unit_m4(tmat);
|
|
unit_m4(imat);
|
|
}
|
|
|
|
glPushMatrix();
|
|
|
|
copy_v3_v3(center, t->center);
|
|
|
|
if ((t->spacetype == SPACE_VIEW3D) && t->obedit) {
|
|
mul_m4_v3(t->obedit->obmat, center); /* because t->center is in local space */
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE) {
|
|
float aspx, aspy;
|
|
|
|
if (t->options & CTX_MASK) {
|
|
/* untested - mask aspect is TODO */
|
|
ED_space_image_get_aspect(t->sa->spacedata.first, &aspx, &aspy);
|
|
}
|
|
else {
|
|
ED_space_image_get_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
|
|
}
|
|
glScalef(1.0f / aspx, 1.0f / aspy, 1.0);
|
|
}
|
|
|
|
depth_test_enabled = glIsEnabled(GL_DEPTH_TEST);
|
|
if (depth_test_enabled)
|
|
glDisable(GL_DEPTH_TEST);
|
|
|
|
set_inverted_drawing(1);
|
|
drawcircball(GL_LINE_LOOP, center, t->prop_size, imat);
|
|
set_inverted_drawing(0);
|
|
|
|
if (depth_test_enabled)
|
|
glEnable(GL_DEPTH_TEST);
|
|
|
|
glPopMatrix();
|
|
}
|
|
}
|
|
|
|
static void drawObjectConstraint(TransInfo *t)
|
|
{
|
|
/* Draw the first one lighter because that's the one who controls the others.
|
|
* Meaning the transformation is projected on that one and just copied on the others
|
|
* constraint space.
|
|
* In a nutshell, the object with light axis is controlled by the user and the others follow.
|
|
* Without drawing the first light, users have little clue what they are doing.
|
|
*/
|
|
short options = DRAWLIGHT;
|
|
TransData *td = t->data;
|
|
int i;
|
|
float tmp_axismtx[3][3];
|
|
|
|
for (i = 0; i < t->total; i++, td++) {
|
|
float co[3];
|
|
float (*axismtx)[3];
|
|
|
|
if (t->flag & T_PROP_EDIT) {
|
|
/* we're sorted, so skip the rest */
|
|
if (td->factor == 0.0f) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (t->flag & T_OBJECT) {
|
|
copy_v3_v3(co, td->ob->obmat[3]);
|
|
axismtx = td->axismtx;
|
|
}
|
|
else if (t->flag & T_EDIT) {
|
|
mul_v3_m4v3(co, t->obedit->obmat, td->center);
|
|
|
|
mul_m3_m3m3(tmp_axismtx, t->obedit_mat, td->axismtx);
|
|
axismtx = tmp_axismtx;
|
|
}
|
|
else if (t->flag & T_POSE) {
|
|
mul_v3_m4v3(co, t->poseobj->obmat, td->center);
|
|
axismtx = td->axismtx;
|
|
}
|
|
else {
|
|
copy_v3_v3(co, td->center);
|
|
axismtx = td->axismtx;
|
|
}
|
|
|
|
if (t->con.mode & CON_AXIS0) {
|
|
drawLine(t, co, axismtx[0], 'X', options);
|
|
}
|
|
if (t->con.mode & CON_AXIS1) {
|
|
drawLine(t, co, axismtx[1], 'Y', options);
|
|
}
|
|
if (t->con.mode & CON_AXIS2) {
|
|
drawLine(t, co, axismtx[2], 'Z', options);
|
|
}
|
|
options &= ~DRAWLIGHT;
|
|
}
|
|
}
|
|
|
|
/*--------------------- START / STOP CONSTRAINTS ---------------------- */
|
|
|
|
void startConstraint(TransInfo *t)
|
|
{
|
|
t->con.mode |= CON_APPLY;
|
|
*t->con.text = ' ';
|
|
t->num.idx_max = min_ii(getConstraintSpaceDimension(t) - 1, t->idx_max);
|
|
}
|
|
|
|
void stopConstraint(TransInfo *t)
|
|
{
|
|
t->con.mode &= ~(CON_APPLY | CON_SELECT);
|
|
*t->con.text = '\0';
|
|
t->num.idx_max = t->idx_max;
|
|
}
|
|
|
|
void getConstraintMatrix(TransInfo *t)
|
|
{
|
|
float mat[3][3];
|
|
invert_m3_m3(t->con.imtx, t->con.mtx);
|
|
unit_m3(t->con.pmtx);
|
|
|
|
if (!(t->con.mode & CON_AXIS0)) {
|
|
t->con.pmtx[0][0] =
|
|
t->con.pmtx[0][1] =
|
|
t->con.pmtx[0][2] = 0.0f;
|
|
}
|
|
|
|
if (!(t->con.mode & CON_AXIS1)) {
|
|
t->con.pmtx[1][0] =
|
|
t->con.pmtx[1][1] =
|
|
t->con.pmtx[1][2] = 0.0f;
|
|
}
|
|
|
|
if (!(t->con.mode & CON_AXIS2)) {
|
|
t->con.pmtx[2][0] =
|
|
t->con.pmtx[2][1] =
|
|
t->con.pmtx[2][2] = 0.0f;
|
|
}
|
|
|
|
mul_m3_m3m3(mat, t->con.pmtx, t->con.imtx);
|
|
mul_m3_m3m3(t->con.pmtx, t->con.mtx, mat);
|
|
}
|
|
|
|
/*------------------------- MMB Select -------------------------------*/
|
|
|
|
void initSelectConstraint(TransInfo *t, float mtx[3][3])
|
|
{
|
|
copy_m3_m3(t->con.mtx, mtx);
|
|
t->con.mode |= CON_APPLY;
|
|
t->con.mode |= CON_SELECT;
|
|
|
|
setNearestAxis(t);
|
|
t->con.drawExtra = NULL;
|
|
t->con.applyVec = applyAxisConstraintVec;
|
|
t->con.applySize = applyAxisConstraintSize;
|
|
t->con.applyRot = applyAxisConstraintRot;
|
|
}
|
|
|
|
void selectConstraint(TransInfo *t)
|
|
{
|
|
if (t->con.mode & CON_SELECT) {
|
|
setNearestAxis(t);
|
|
startConstraint(t);
|
|
}
|
|
}
|
|
|
|
void postSelectConstraint(TransInfo *t)
|
|
{
|
|
if (!(t->con.mode & CON_SELECT))
|
|
return;
|
|
|
|
t->con.mode &= ~CON_AXIS0;
|
|
t->con.mode &= ~CON_AXIS1;
|
|
t->con.mode &= ~CON_AXIS2;
|
|
t->con.mode &= ~CON_SELECT;
|
|
|
|
setNearestAxis(t);
|
|
|
|
startConstraint(t);
|
|
t->redraw = TREDRAW_HARD;
|
|
}
|
|
|
|
static void setNearestAxis2d(TransInfo *t)
|
|
{
|
|
/* no correction needed... just use whichever one is lower */
|
|
if (abs(t->mval[0] - t->con.imval[0]) < abs(t->mval[1] - t->con.imval[1])) {
|
|
t->con.mode |= CON_AXIS1;
|
|
BLI_strncpy(t->con.text, IFACE_(" along Y axis"), sizeof(t->con.text));
|
|
}
|
|
else {
|
|
t->con.mode |= CON_AXIS0;
|
|
BLI_strncpy(t->con.text, IFACE_(" along X axis"), sizeof(t->con.text));
|
|
}
|
|
}
|
|
|
|
static void setNearestAxis3d(TransInfo *t)
|
|
{
|
|
float zfac;
|
|
float mvec[3], proj[3];
|
|
float len[3];
|
|
int i;
|
|
|
|
/* calculate mouse movement */
|
|
mvec[0] = (float)(t->mval[0] - t->con.imval[0]);
|
|
mvec[1] = (float)(t->mval[1] - t->con.imval[1]);
|
|
mvec[2] = 0.0f;
|
|
|
|
/* we need to correct axis length for the current zoomlevel of view,
|
|
* this to prevent projected values to be clipped behind the camera
|
|
* and to overflow the short integers.
|
|
* The formula used is a bit stupid, just a simplification of the subtraction
|
|
* of two 2D points 30 pixels apart (that's the last factor in the formula) after
|
|
* projecting them with ED_view3d_win_to_delta and then get the length of that vector.
|
|
*/
|
|
zfac = mul_project_m4_v3_zfac(t->persmat, t->center);
|
|
zfac = len_v3(t->persinv[0]) * 2.0f / t->ar->winx * zfac * 30.0f;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
float axis[3], axis_2d[2];
|
|
|
|
copy_v3_v3(axis, t->con.mtx[i]);
|
|
|
|
mul_v3_fl(axis, zfac);
|
|
/* now we can project to get window coordinate */
|
|
add_v3_v3(axis, t->con.center);
|
|
projectFloatView(t, axis, axis_2d);
|
|
|
|
sub_v2_v2v2(axis, axis_2d, t->center2d);
|
|
axis[2] = 0.0f;
|
|
|
|
if (normalize_v3(axis) != 0.0f) {
|
|
project_v3_v3v3(proj, mvec, axis);
|
|
sub_v3_v3v3(axis, mvec, proj);
|
|
len[i] = normalize_v3(axis);
|
|
}
|
|
else {
|
|
len[i] = 10000000000.0f;
|
|
}
|
|
}
|
|
|
|
if (len[0] <= len[1] && len[0] <= len[2]) {
|
|
if (t->modifiers & MOD_CONSTRAINT_PLANE) {
|
|
t->con.mode |= (CON_AXIS1 | CON_AXIS2);
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" locking %s X axis"), t->spacename);
|
|
}
|
|
else {
|
|
t->con.mode |= CON_AXIS0;
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" along %s X axis"), t->spacename);
|
|
}
|
|
}
|
|
else if (len[1] <= len[0] && len[1] <= len[2]) {
|
|
if (t->modifiers & MOD_CONSTRAINT_PLANE) {
|
|
t->con.mode |= (CON_AXIS0 | CON_AXIS2);
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" locking %s Y axis"), t->spacename);
|
|
}
|
|
else {
|
|
t->con.mode |= CON_AXIS1;
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" along %s Y axis"), t->spacename);
|
|
}
|
|
}
|
|
else if (len[2] <= len[1] && len[2] <= len[0]) {
|
|
if (t->modifiers & MOD_CONSTRAINT_PLANE) {
|
|
t->con.mode |= (CON_AXIS0 | CON_AXIS1);
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" locking %s Z axis"), t->spacename);
|
|
}
|
|
else {
|
|
t->con.mode |= CON_AXIS2;
|
|
BLI_snprintf(t->con.text, sizeof(t->con.text), IFACE_(" along %s Z axis"), t->spacename);
|
|
}
|
|
}
|
|
}
|
|
|
|
void setNearestAxis(TransInfo *t)
|
|
{
|
|
/* clear any prior constraint flags */
|
|
t->con.mode &= ~CON_AXIS0;
|
|
t->con.mode &= ~CON_AXIS1;
|
|
t->con.mode &= ~CON_AXIS2;
|
|
|
|
/* constraint setting - depends on spacetype */
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
/* 3d-view */
|
|
setNearestAxis3d(t);
|
|
}
|
|
else {
|
|
/* assume that this means a 2D-Editor */
|
|
setNearestAxis2d(t);
|
|
}
|
|
|
|
getConstraintMatrix(t);
|
|
}
|
|
|
|
/*-------------- HELPER FUNCTIONS ----------------*/
|
|
|
|
char constraintModeToChar(TransInfo *t)
|
|
{
|
|
if ((t->con.mode & CON_APPLY) == 0) {
|
|
return '\0';
|
|
}
|
|
switch (t->con.mode & (CON_AXIS0 | CON_AXIS1 | CON_AXIS2)) {
|
|
case (CON_AXIS0):
|
|
case (CON_AXIS1 | CON_AXIS2):
|
|
return 'X';
|
|
case (CON_AXIS1):
|
|
case (CON_AXIS0 | CON_AXIS2):
|
|
return 'Y';
|
|
case (CON_AXIS2):
|
|
case (CON_AXIS0 | CON_AXIS1):
|
|
return 'Z';
|
|
default:
|
|
return '\0';
|
|
}
|
|
}
|
|
|
|
|
|
bool isLockConstraint(TransInfo *t)
|
|
{
|
|
int mode = t->con.mode;
|
|
|
|
if ((mode & (CON_AXIS0 | CON_AXIS1)) == (CON_AXIS0 | CON_AXIS1))
|
|
return true;
|
|
|
|
if ((mode & (CON_AXIS1 | CON_AXIS2)) == (CON_AXIS1 | CON_AXIS2))
|
|
return true;
|
|
|
|
if ((mode & (CON_AXIS0 | CON_AXIS2)) == (CON_AXIS0 | CON_AXIS2))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Returns the dimension of the constraint space.
|
|
*
|
|
* For that reason, the flags always needs to be set to properly evaluate here,
|
|
* even if they aren't actually used in the callback function. (Which could happen
|
|
* for weird constraints not yet designed. Along a path for example.)
|
|
*/
|
|
|
|
int getConstraintSpaceDimension(TransInfo *t)
|
|
{
|
|
int n = 0;
|
|
|
|
if (t->con.mode & CON_AXIS0)
|
|
n++;
|
|
|
|
if (t->con.mode & CON_AXIS1)
|
|
n++;
|
|
|
|
if (t->con.mode & CON_AXIS2)
|
|
n++;
|
|
|
|
return n;
|
|
/*
|
|
* Someone willing to do it cryptically could do the following instead:
|
|
*
|
|
* return t->con & (CON_AXIS0|CON_AXIS1|CON_AXIS2);
|
|
*
|
|
* Based on the assumptions that the axis flags are one after the other and start at 1
|
|
*/
|
|
}
|