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Differential D5819 Diff 18279 source/blender/editors/transform/transform_mode_shear.c

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source/blender/editors/transform/transform_mode_shear.c

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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 edtransform
*/
#include "MEM_guardedalloc.h"
#include "DNA_gpencil_types.h"
#include "BLI_math.h"
#include "BLI_string.h"
#include "BLT_translation.h"
#include "BKE_context.h"
#include "BKE_unit.h"
#include "RNA_define.h"
#include "WM_api.h"
#include "WM_types.h"
#include "UI_interface.h"
#include "ED_screen.h"
#include "transform.h"
#include "transform_ops.h"
const char OP_SHEAR[] = "TRANSFORM_OT_shear";
/* -------------------------------------------------------------------- */
/* Transform (Shear) */
/** \name Transform Shear
* \{ */
static void initShear_mouseInputMode(TransInfo *t)
{
float dir[3];
copy_v3_v3(dir, t->orient_matrix[t->orient_axis_ortho]);
/* Without this, half the gizmo handles move in the opposite direction. */
if ((t->orient_axis_ortho + 1) % 3 != t->orient_axis) {
negate_v3(dir);
}
mul_mat3_m4_v3(t->viewmat, dir);
if (normalize_v2(dir) == 0.0f) {
dir[0] = 1.0f;
}
setCustomPointsFromDirection(t, &t->mouse, dir);
initMouseInputMode(t, &t->mouse, INPUT_CUSTOM_RATIO);
}
static eRedrawFlag handleEventShear(TransInfo *t, const wmEvent *event)
{
eRedrawFlag status = TREDRAW_NOTHING;
if (event->type == MIDDLEMOUSE && event->val == KM_PRESS) {
/* Use custom.mode.data pointer to signal Shear direction */
do {
t->orient_axis_ortho = (t->orient_axis_ortho + 1) % 3;
} while (t->orient_axis_ortho == t->orient_axis);
initShear_mouseInputMode(t);
status = TREDRAW_HARD;
}
else if (event->type == XKEY && event->val == KM_PRESS) {
t->orient_axis_ortho = (t->orient_axis + 1) % 3;
initShear_mouseInputMode(t);
status = TREDRAW_HARD;
}
else if (event->type == YKEY && event->val == KM_PRESS) {
t->orient_axis_ortho = (t->orient_axis + 2) % 3;
initShear_mouseInputMode(t);
status = TREDRAW_HARD;
}
return status;
}
static void applyShear(TransInfo *t, const int UNUSED(mval[2]))
{
float vec[3];
float smat[3][3], tmat[3][3], totmat[3][3], axismat[3][3], axismat_inv[3][3];
float value;
int i;
char str[UI_MAX_DRAW_STR];
const bool is_local_center = transdata_check_local_center(t, t->around);
value = t->values[0];
snapGridIncrement(t, &value);
applyNumInput(&t->num, &value);
t->values_final[0] = value;
/* header print for NumInput */
if (hasNumInput(&t->num)) {
char c[NUM_STR_REP_LEN];
outputNumInput(&(t->num), c, &t->scene->unit);
BLI_snprintf(str, sizeof(str), TIP_("Shear: %s %s"), c, t->proptext);
}
else {
/* default header print */
BLI_snprintf(str,
sizeof(str),
TIP_("Shear: %.3f %s (Press X or Y to set shear axis)"),
value,
t->proptext);
}
unit_m3(smat);
smat[1][0] = value;
copy_v3_v3(axismat_inv[0], t->orient_matrix[t->orient_axis_ortho]);
copy_v3_v3(axismat_inv[2], t->orient_matrix[t->orient_axis]);
cross_v3_v3v3(axismat_inv[1], axismat_inv[0], axismat_inv[2]);
invert_m3_m3(axismat, axismat_inv);
mul_m3_series(totmat, axismat_inv, smat, axismat);
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
TransData *td = tc->data;
for (i = 0; i < tc->data_len; i++, td++) {
const float *center, *co;
if (td->flag & TD_NOACTION) {
break;
}
if (td->flag & TD_SKIP) {
continue;
}
if (t->flag & T_EDIT) {
mul_m3_series(tmat, td->smtx, totmat, td->mtx);
}
else {
copy_m3_m3(tmat, totmat);
}
if (is_local_center) {
center = td->center;
co = td->loc;
}
else {
center = tc->center_local;
co = td->center;
}
sub_v3_v3v3(vec, co, center);
mul_m3_v3(tmat, vec);
add_v3_v3(vec, center);
sub_v3_v3(vec, co);
if (t->options & CTX_GPENCIL_STROKES) {
/* grease pencil multiframe falloff */
bGPDstroke *gps = (bGPDstroke *)td->extra;
if (gps != NULL) {
mul_v3_fl(vec, td->factor * gps->runtime.multi_frame_falloff);
}
else {
mul_v3_fl(vec, td->factor);
}
}
else {
mul_v3_fl(vec, td->factor);
}
add_v3_v3v3(td->loc, td->iloc, vec);
}
}
recalcData(t);
ED_area_status_text(t->sa, str);
}
void initShear(TransInfo *t)
{
t->mode = TFM_SHEAR;
t->transform = applyShear;
t->handleEvent = handleEventShear;
if (t->orient_axis == t->orient_axis_ortho) {
t->orient_axis = 2;
t->orient_axis_ortho = 1;
}
initShear_mouseInputMode(t);
t->idx_max = 0;
t->num.idx_max = 0;
t->snap[0] = 0.0f;
t->snap[1] = 0.1f;
t->snap[2] = t->snap[1] * 0.1f;
copy_v3_fl(t->num.val_inc, t->snap[1]);
t->num.unit_sys = t->scene->unit.system;
t->num.unit_type[0] = B_UNIT_NONE; /* Don't think we have any unit here? */
t->flag |= T_NO_CONSTRAINT;
}
/** \} */
static bool transform_shear_poll(bContext *C)
{
if (!ED_operator_screenactive(C)) {
return false;
}
ScrArea *sa = CTX_wm_area(C);
return sa && !ELEM(sa->spacetype, SPACE_ACTION);
}
void TRANSFORM_OT_shear(struct wmOperatorType *ot)
{
/* identifiers */
ot->name = "Shear";
ot->description = "Shear selected items along the horizontal screen axis";
ot->idname = OP_SHEAR;
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
/* api callbacks */
ot->invoke = transform_invoke;
ot->exec = transform_exec;
ot->modal = transform_modal;
ot->cancel = transform_cancel;
ot->poll = transform_shear_poll;
ot->poll_property = transform_poll_property;
RNA_def_float(ot->srna, "value", 0, -FLT_MAX, FLT_MAX, "Offset", "", -FLT_MAX, FLT_MAX);
WM_operatortype_props_advanced_begin(ot);
Transform_Properties(ot,
P_ORIENT_AXIS | P_ORIENT_AXIS_ORTHO | P_ORIENT_MATRIX | P_PROPORTIONAL |
P_MIRROR | P_SNAP | P_GPENCIL_EDIT);
}