Differential D5677 Diff 17863 source/blender/editors/transform/transform_conversions_object.c

Changeset View

Standalone View

source/blender/editors/transform/transform_conversions_object.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 "DNA_mesh_types.h"

				#include "MEM_guardedalloc.h"

				#include "BLI_compiler_compat.h"
				#include "BLI_ghash.h"
				#include "BLI_listbase.h"
				#include "BLI_math.h"

				#include "BKE_context.h"
				#include "BKE_layer.h"
				#include "BKE_main.h"
				#include "BKE_object.h"
				#include "BKE_report.h"
				#include "BKE_rigidbody.h"
				#include "BKE_scene.h"

				#include "ED_object.h"

				#include "WM_api.h" /* for WM_event_add_notifier to deal with stabilization nodes */

				#include "DEG_depsgraph_query.h"

				#include "transform.h"
				#include "transform_conversions.h"

				/* -------------------------------------------------------------------- */
				/** \name Object Mode Custom Data
				* \{ */

				typedef struct TransDataObject {

				/**
				* Object to object data transform table.
				* Don't add these to transform data because we may want to include child objects
				* which aren't being transformed.
				* - The key is object data #ID.
				* - The value is #XFormObjectData_Extra.
				*/
				struct GHash *obdata_in_obmode_map;

				/**
				* Transform
				* - The key is object data #Object.
				* - The value is #XFormObjectSkipChild.
				*/
				struct GHash *obchild_in_obmode_map;

				} TransDataObject;

				static void trans_obdata_in_obmode_free_all(TransDataObject *tdo);
				static void trans_obchild_in_obmode_free_all(TransDataObject *tdo);

				static void freeTransObjectCustomData(TransInfo *t,
				TransDataContainer *UNUSED(tc),
				TransCustomData *custom_data)
				{
				TransDataObject *tdo = custom_data->data;
				custom_data->data = NULL;

				if (t->options & CTX_OBMODE_XFORM_OBDATA) {
				trans_obdata_in_obmode_free_all(tdo);
				}

				if (t->options & CTX_OBMODE_XFORM_SKIP_CHILDREN) {
				trans_obchild_in_obmode_free_all(tdo);
				}
				MEM_freeN(tdo);
				}

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Object Data in Object Mode
				*
				* Use to implement 'Affect Only Origins' feature.
				* We need this to be detached from transform data because,
				* unlike transforming regular objects, we need to transform the children.
				*
				* \{ */

				struct XFormObjectData_Extra {
				Object *ob;
				float obmat_orig[4][4];
				struct XFormObjectData *xod;
				};

				static void trans_obdata_in_obmode_ensure_object(TransDataObject tdo, Object ob)
				{
				if (tdo->obdata_in_obmode_map == NULL) {
				tdo->obdata_in_obmode_map = BLI_ghash_ptr_new(__func__);
				}

				void **xf_p;
				if (!BLI_ghash_ensure_p(tdo->obdata_in_obmode_map, ob->data, &xf_p)) {
				struct XFormObjectData_Extra xf = MEM_mallocN(sizeof(xf), __func__);
				copy_m4_m4(xf->obmat_orig, ob->obmat);
				xf->ob = ob;
				/* Result may be NULL, that's OK. */
				xf->xod = ED_object_data_xform_create(ob->data);
				*xf_p = xf;
				}
				}

				void trans_obdata_in_obmode_update_all(TransInfo *t)
				{
				TransDataObject *tdo = t->custom.type.data;
				if (tdo->obdata_in_obmode_map == NULL) {
				return;
				}

				struct Main *bmain = CTX_data_main(t->context);
				BKE_scene_graph_evaluated_ensure(t->depsgraph, bmain);

				GHashIterator gh_iter;
				GHASH_ITER (gh_iter, tdo->obdata_in_obmode_map) {
				ID *id = BLI_ghashIterator_getKey(&gh_iter);
				struct XFormObjectData_Extra *xf = BLI_ghashIterator_getValue(&gh_iter);
				if (xf->xod == NULL) {
				continue;
				}

				Object *ob_eval = DEG_get_evaluated_object(t->depsgraph, xf->ob);
				float imat[4][4], dmat[4][4];
				invert_m4_m4(imat, xf->obmat_orig);
				mul_m4_m4m4(dmat, imat, ob_eval->obmat);
				invert_m4(dmat);

				ED_object_data_xform_by_mat4(xf->xod, dmat);
				DEG_id_tag_update(id, ID_RECALC_GEOMETRY);
				}
				}

				/** Callback for #GHash free. */
				static void trans_obdata_in_obmode_free_elem(void *xf_p)
				{
				struct XFormObjectData_Extra *xf = xf_p;
				if (xf->xod) {
				ED_object_data_xform_destroy(xf->xod);
				}
				MEM_freeN(xf);
				}

				static void trans_obdata_in_obmode_free_all(TransDataObject *tdo)
				{
				if (tdo->obdata_in_obmode_map != NULL) {
				BLI_ghash_free(tdo->obdata_in_obmode_map, NULL, trans_obdata_in_obmode_free_elem);
				}
				}

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Object Child Skip
				*
				* Don't transform unselected children, this is done using the parent inverse matrix.
				*
				* \note The complex logic here is caused by mixed selection within a single selection chain,
				* otherwise we only need #OB_SKIP_CHILD_PARENT_IS_XFORM for single objects.
				*
				* \{ */

				enum {
				/**
				* The parent is transformed, this is held in place.
				*/
				OB_SKIP_CHILD_PARENT_IS_XFORM = 1,
				/**
				* The same as #OB_SKIP_CHILD_PARENT_IS_XFORM,
				* however this objects parent isn't transformed directly.
				*/
				OB_SKIP_CHILD_PARENT_IS_XFORM_INDIRECT = 3,
				/**
				* Use the parent invert matrix to apply transformation,
				* this is needed, because breaks in the selection chain prevents this from being transformed.
				* This is used to add the transform which would have been added
				* if there weren't breaks in the parent/child chain.
				*/
				OB_SKIP_CHILD_PARENT_APPLY_TRANSFORM = 2,
				};

				struct XFormObjectSkipChild {
				float obmat_orig[4][4];
				float parent_obmat_orig[4][4];
				float parent_obmat_inv_orig[4][4];
				float parent_recurse_obmat_orig[4][4];
				float parentinv_orig[4][4];
				Object *ob_parent_recurse;
				int mode;
				};

				static void trans_obchild_in_obmode_ensure_object(TransDataObject *tdo,
				Object *ob,
				Object *ob_parent_recurse,
				int mode)
				{
				if (tdo->obchild_in_obmode_map == NULL) {
				tdo->obchild_in_obmode_map = BLI_ghash_ptr_new(__func__);
				}

				void **xf_p;
				if (!BLI_ghash_ensure_p(tdo->obchild_in_obmode_map, ob, &xf_p)) {
				struct XFormObjectSkipChild xf = MEM_mallocN(sizeof(xf), __func__);
				copy_m4_m4(xf->parentinv_orig, ob->parentinv);
				copy_m4_m4(xf->obmat_orig, ob->obmat);
				copy_m4_m4(xf->parent_obmat_orig, ob->parent->obmat);
				invert_m4_m4(xf->parent_obmat_inv_orig, ob->parent->obmat);
				if (ob_parent_recurse) {
				copy_m4_m4(xf->parent_recurse_obmat_orig, ob_parent_recurse->obmat);
				}
				xf->mode = mode;
				xf->ob_parent_recurse = ob_parent_recurse;
				*xf_p = xf;
				}
				}

				void trans_obchild_in_obmode_update_all(TransInfo *t)
				{
				TransDataObject *tdo = t->custom.type.data;
				if (tdo->obchild_in_obmode_map == NULL) {
				return;
				}

				struct Main *bmain = CTX_data_main(t->context);
				BKE_scene_graph_evaluated_ensure(t->depsgraph, bmain);

				GHashIterator gh_iter;
				GHASH_ITER (gh_iter, tdo->obchild_in_obmode_map) {
				Object *ob = BLI_ghashIterator_getKey(&gh_iter);
				struct XFormObjectSkipChild *xf = BLI_ghashIterator_getValue(&gh_iter);

				/* The following blocks below assign 'dmat'. */
				float dmat[4][4];

				if (xf->mode == OB_SKIP_CHILD_PARENT_IS_XFORM) {
				/* Parent is transformed, this isn't so compensate. */
				Object *ob_parent_eval = DEG_get_evaluated_object(t->depsgraph, ob->parent);
				mul_m4_m4m4(dmat, xf->parent_obmat_inv_orig, ob_parent_eval->obmat);
				invert_m4(dmat);
				}
				else if (xf->mode == OB_SKIP_CHILD_PARENT_IS_XFORM_INDIRECT) {
				/* Calculate parent matrix (from the root transform). */
				Object *ob_parent_recurse_eval = DEG_get_evaluated_object(t->depsgraph,
				xf->ob_parent_recurse);
				float parent_recurse_obmat_inv[4][4];
				invert_m4_m4(parent_recurse_obmat_inv, ob_parent_recurse_eval->obmat);
				mul_m4_m4m4(dmat, xf->parent_recurse_obmat_orig, parent_recurse_obmat_inv);
				invert_m4(dmat);
				float parent_obmat_calc[4][4];
				mul_m4_m4m4(parent_obmat_calc, dmat, xf->parent_obmat_orig);

				/* Apply to the parent inverse matrix. */
				mul_m4_m4m4(dmat, xf->parent_obmat_inv_orig, parent_obmat_calc);
				invert_m4(dmat);
				}
				else {
				BLI_assert(xf->mode == OB_SKIP_CHILD_PARENT_APPLY_TRANSFORM);
				/* Transform this - without transform data. */
				Object *ob_parent_recurse_eval = DEG_get_evaluated_object(t->depsgraph,
				xf->ob_parent_recurse);
				float parent_recurse_obmat_inv[4][4];
				invert_m4_m4(parent_recurse_obmat_inv, ob_parent_recurse_eval->obmat);
				mul_m4_m4m4(dmat, xf->parent_recurse_obmat_orig, parent_recurse_obmat_inv);
				invert_m4(dmat);
				float obmat_calc[4][4];
				mul_m4_m4m4(obmat_calc, dmat, xf->obmat_orig);
				/* obmat_calc is just obmat. */

				/* Get the matrices relative to the parent. */
				float obmat_parent_relative_orig[4][4];
				float obmat_parent_relative_calc[4][4];
				float obmat_parent_relative_inv_orig[4][4];

				mul_m4_m4m4(obmat_parent_relative_orig, xf->parent_obmat_inv_orig, xf->obmat_orig);
				mul_m4_m4m4(obmat_parent_relative_calc, xf->parent_obmat_inv_orig, obmat_calc);
				invert_m4_m4(obmat_parent_relative_inv_orig, obmat_parent_relative_orig);

				/* Apply to the parent inverse matrix. */
				mul_m4_m4m4(dmat, obmat_parent_relative_calc, obmat_parent_relative_inv_orig);
				}

				mul_m4_m4m4(ob->parentinv, dmat, xf->parentinv_orig);

				DEG_id_tag_update(&ob->id, ID_RECALC_TRANSFORM);
				}
				}

				static void trans_obchild_in_obmode_free_all(TransDataObject *tdo)
				{
				if (tdo->obchild_in_obmode_map != NULL) {
				BLI_ghash_free(tdo->obchild_in_obmode_map, NULL, MEM_freeN);
				}
				}

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Object Transform Creation
				*
				* Instead of transforming the selection, move the 2D/3D cursor.
				*
				* \{ */

				/* ********************* Object Transform data ***************** */

				/* transcribe given object into TransData for Transforming */
				static void ObjectToTransData(TransInfo t, TransData td, Object *ob)
				{
				Scene *scene = t->scene;
				bool constinv;
				bool skip_invert = false;

				if (t->mode != TFM_DUMMY && ob->rigidbody_object) {
				float rot[3][3], scale[3];
				float ctime = BKE_scene_frame_get(scene);

				/* only use rigid body transform if simulation is running,
				* avoids problems with initial setup of rigid bodies */
				if (BKE_rigidbody_check_sim_running(scene->rigidbody_world, ctime)) {

				/* save original object transform */
				copy_v3_v3(td->ext->oloc, ob->loc);

				if (ob->rotmode > 0) {
				copy_v3_v3(td->ext->orot, ob->rot);
				}
				else if (ob->rotmode == ROT_MODE_AXISANGLE) {
				td->ext->orotAngle = ob->rotAngle;
				copy_v3_v3(td->ext->orotAxis, ob->rotAxis);
				}
				else {
				copy_qt_qt(td->ext->oquat, ob->quat);
				}
				/* update object's loc/rot to get current rigid body transform */
				mat4_to_loc_rot_size(ob->loc, rot, scale, ob->obmat);
				sub_v3_v3(ob->loc, ob->dloc);
				BKE_object_mat3_to_rot(ob, rot, false); /* drot is already corrected here */
				}
				}

				/* axismtx has the real orientation */
				copy_m3_m4(td->axismtx, ob->obmat);
				normalize_m3(td->axismtx);

				td->con = ob->constraints.first;

				/* hack: temporarily disable tracking and/or constraints when getting
				* object matrix, if tracking is on, or if constraints don't need
				* inverse correction to stop it from screwing up space conversion
				* matrix later
				*/
				constinv = constraints_list_needinv(t, &ob->constraints);

				/* disable constraints inversion for dummy pass */
				if (t->mode == TFM_DUMMY) {
				skip_invert = true;
				}

				/* NOTE: This is not really following copy-on-write design and we should not
				* be re-evaluating the evaluated object. But as the comment above mentioned
				* this is part of a hack.
				* More proper solution would be to make a shallow copy of the object and
				* evaluate that, and access matrix of that evaluated copy of the object.
				* Might be more tricky than it sounds, if some logic later on accesses the
				* object matrix via td->ob->obmat. */
				Object *object_eval = DEG_get_evaluated_object(t->depsgraph, ob);
				if (skip_invert == false && constinv == false) {
				object_eval->transflag \|= OB_NO_CONSTRAINTS; /* BKE_object_where_is_calc checks this */
				/* It is possible to have transform data initialization prior to a
				* complete dependency graph evaluated. Happens, for example, when
				* changing transformation mode. */
				BKE_object_tfm_copy(object_eval, ob);
				BKE_object_where_is_calc(t->depsgraph, t->scene, object_eval);
				object_eval->transflag &= ~OB_NO_CONSTRAINTS;
				}
				else {
				BKE_object_where_is_calc(t->depsgraph, t->scene, object_eval);
				}
				/* Copy newly evaluated fields to the original object, similar to how
				* active dependency graph will do it. */
				copy_m4_m4(ob->obmat, object_eval->obmat);
				/* Only copy negative scale flag, this is the only flag which is modified by
				* the BKE_object_where_is_calc(). The rest of the flags we need to keep,
				* otherwise we might loose dupli flags (see T61787). */
				ob->transflag &= ~OB_NEG_SCALE;
				ob->transflag \|= (object_eval->transflag & OB_NEG_SCALE);

				td->ob = ob;

				td->loc = ob->loc;
				copy_v3_v3(td->iloc, td->loc);

				if (ob->rotmode > 0) {
				td->ext->rot = ob->rot;
				td->ext->rotAxis = NULL;
				td->ext->rotAngle = NULL;
				td->ext->quat = NULL;

				copy_v3_v3(td->ext->irot, ob->rot);
				copy_v3_v3(td->ext->drot, ob->drot);
				}
				else if (ob->rotmode == ROT_MODE_AXISANGLE) {
				td->ext->rot = NULL;
				td->ext->rotAxis = ob->rotAxis;
				td->ext->rotAngle = &ob->rotAngle;
				td->ext->quat = NULL;

				td->ext->irotAngle = ob->rotAngle;
				copy_v3_v3(td->ext->irotAxis, ob->rotAxis);
				// td->ext->drotAngle = ob->drotAngle; // XXX, not implemented
				// copy_v3_v3(td->ext->drotAxis, ob->drotAxis); // XXX, not implemented
				}
				else {
				td->ext->rot = NULL;
				td->ext->rotAxis = NULL;
				td->ext->rotAngle = NULL;
				td->ext->quat = ob->quat;

				copy_qt_qt(td->ext->iquat, ob->quat);
				copy_qt_qt(td->ext->dquat, ob->dquat);
				}
				td->ext->rotOrder = ob->rotmode;

				td->ext->size = ob->scale;
				copy_v3_v3(td->ext->isize, ob->scale);
				copy_v3_v3(td->ext->dscale, ob->dscale);

				copy_v3_v3(td->center, ob->obmat[3]);

				copy_m4_m4(td->ext->obmat, ob->obmat);

				/* is there a need to set the global<->data space conversion matrices? */
				if (ob->parent \|\| constinv) {
				float obmtx[3][3], totmat[3][3], obinv[3][3];

				/* Get the effect of parenting, and/or certain constraints.
				* NOTE: some Constraints, and also Tracking should never get this
				* done, as it doesn't work well.
				*/
				BKE_object_to_mat3(ob, obmtx);
				copy_m3_m4(totmat, ob->obmat);
				invert_m3_m3(obinv, totmat);
				mul_m3_m3m3(td->smtx, obmtx, obinv);
				invert_m3_m3(td->mtx, td->smtx);
				}
				else {
				/* no conversion to/from dataspace */
				unit_m3(td->smtx);
				unit_m3(td->mtx);
				}
				}

				static void trans_object_base_deps_flag_prepare(ViewLayer *view_layer)
				{
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				base->object->id.tag &= ~LIB_TAG_DOIT;
				}
				}

				static void set_trans_object_base_deps_flag_cb(ID *id,
				eDepsObjectComponentType component,
				void *UNUSED(user_data))
				{
				/* Here we only handle object IDs. */
				if (GS(id->name) != ID_OB) {
				return;
				}
				if (!ELEM(component, DEG_OB_COMP_TRANSFORM, DEG_OB_COMP_GEOMETRY)) {
				return;
				}
				id->tag \|= LIB_TAG_DOIT;
				}

				static void flush_trans_object_base_deps_flag(Depsgraph depsgraph, Object object)
				{
				object->id.tag \|= LIB_TAG_DOIT;
				DEG_foreach_dependent_ID_component(
				depsgraph, &object->id, DEG_OB_COMP_TRANSFORM, set_trans_object_base_deps_flag_cb, NULL);
				}

				static void trans_object_base_deps_flag_finish(const TransInfo t, ViewLayer view_layer)
				{

				if ((t->options & CTX_OBMODE_XFORM_OBDATA) == 0) {
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				if (base->object->id.tag & LIB_TAG_DOIT) {
				base->flag_legacy \|= BA_SNAP_FIX_DEPS_FIASCO;
				}
				}
				}
				}

				/* sets flags in Bases to define whether they take part in transform */
				/* it deselects Bases, so we have to call the clear function always after */
				static void set_trans_object_base_flags(TransInfo *t)
				{
				Main *bmain = CTX_data_main(t->context);
				ViewLayer *view_layer = t->view_layer;
				View3D *v3d = t->view;
				Scene *scene = t->scene;
				Depsgraph *depsgraph = BKE_scene_get_depsgraph(scene, view_layer, true);
				/* NOTE: if Base selected and has parent selected:
				* base->flag_legacy = BA_WAS_SEL
				*/
				/* Don't do it if we're not actually going to recalculate anything. */
				if (t->mode == TFM_DUMMY) {
				return;
				}
				/* Makes sure base flags and object flags are identical. */
				BKE_scene_base_flag_to_objects(t->view_layer);
				/* Make sure depsgraph is here. */
				DEG_graph_relations_update(depsgraph, bmain, scene, view_layer);
				/* Clear all flags we need. It will be used to detect dependencies. */
				trans_object_base_deps_flag_prepare(view_layer);
				/* Traverse all bases and set all possible flags. */
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				base->flag_legacy &= ~(BA_WAS_SEL \| BA_TRANSFORM_LOCKED_IN_PLACE);
				if (BASE_SELECTED_EDITABLE(v3d, base)) {
				Object *ob = base->object;
				Object *parsel = ob->parent;
				/* If parent selected, deselect. */
				while (parsel != NULL) {
				if (parsel->base_flag & BASE_SELECTED) {
				Base *parbase = BKE_view_layer_base_find(view_layer, parsel);
				if (parbase != NULL) { /* in rare cases this can fail */
				if (BASE_SELECTED_EDITABLE(v3d, parbase)) {
				break;
				}
				}
				}
				parsel = parsel->parent;
				}
				if (parsel != NULL) {
				/* Rotation around local centers are allowed to propagate. */
				if ((t->around == V3D_AROUND_LOCAL_ORIGINS) &&
				(t->mode == TFM_ROTATION \|\| t->mode == TFM_TRACKBALL)) {
				base->flag_legacy \|= BA_TRANSFORM_CHILD;
				}
				else {
				base->flag &= ~BASE_SELECTED;
				base->flag_legacy \|= BA_WAS_SEL;
				}
				}
				flush_trans_object_base_deps_flag(depsgraph, ob);
				}
				}
				/* Store temporary bits in base indicating that base is being modified
				* (directly or indirectly) by transforming objects.
				*/
				trans_object_base_deps_flag_finish(t, view_layer);
				}

				static bool mark_children(Object *ob)
				{
				if (ob->flag & (SELECT \| BA_TRANSFORM_CHILD)) {
				return true;
				}

				if (ob->parent) {
				if (mark_children(ob->parent)) {
				ob->flag \|= BA_TRANSFORM_CHILD;
				return true;
				}
				}

				return false;
				}

				static int count_proportional_objects(TransInfo *t)
				{
				int total = 0;
				ViewLayer *view_layer = t->view_layer;
				View3D *v3d = t->view;
				Scene *scene = t->scene;
				Depsgraph *depsgraph = BKE_scene_get_depsgraph(scene, view_layer, true);
				/* Clear all flags we need. It will be used to detect dependencies. */
				trans_object_base_deps_flag_prepare(view_layer);
				/* Rotations around local centers are allowed to propagate, so we take all objects. */
				if (!((t->around == V3D_AROUND_LOCAL_ORIGINS) &&
				(t->mode == TFM_ROTATION \|\| t->mode == TFM_TRACKBALL))) {
				/* Mark all parents. */
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				if (BASE_SELECTED_EDITABLE(v3d, base) && BASE_SELECTABLE(v3d, base)) {
				Object *parent = base->object->parent;
				/* flag all parents */
				while (parent != NULL) {
				parent->flag \|= BA_TRANSFORM_PARENT;
				parent = parent->parent;
				}
				}
				}
				/* Mark all children. */
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				/* all base not already selected or marked that is editable */
				if ((base->object->flag & (BA_TRANSFORM_CHILD \| BA_TRANSFORM_PARENT)) == 0 &&
				(base->flag & BASE_SELECTED) == 0 &&
				(BASE_EDITABLE(v3d, base) && BASE_SELECTABLE(v3d, base))) {
				mark_children(base->object);
				}
				}
				}
				/* Flush changed flags to all dependencies. */
				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				Object *ob = base->object;
				/* If base is not selected, not a parent of selection or not a child of
				* selection and it is editable and selectable.
				*/
				if ((ob->flag & (BA_TRANSFORM_CHILD \| BA_TRANSFORM_PARENT)) == 0 &&
				(base->flag & BASE_SELECTED) == 0 &&
				(BASE_EDITABLE(v3d, base) && BASE_SELECTABLE(v3d, base))) {
				flush_trans_object_base_deps_flag(depsgraph, ob);
				total += 1;
				}
				}
				/* Store temporary bits in base indicating that base is being modified
				* (directly or indirectly) by transforming objects.
				*/
				trans_object_base_deps_flag_finish(t, view_layer);
				return total;
				}

				void clear_trans_object_base_flags(TransInfo *t)
				{
				ViewLayer *view_layer = t->view_layer;
				Base *base;

				for (base = view_layer->object_bases.first; base; base = base->next) {
				if (base->flag_legacy & BA_WAS_SEL) {
				ED_object_base_select(base, BA_SELECT);
				}

				base->flag_legacy &= ~(BA_WAS_SEL \| BA_SNAP_FIX_DEPS_FIASCO \| BA_TEMP_TAG \|
				BA_TRANSFORM_CHILD \| BA_TRANSFORM_PARENT \|
				BA_TRANSFORM_LOCKED_IN_PLACE);
				}
				}

				void createTransObject(bContext C, TransInfo t)
				{
				TransData *td = NULL;
				TransDataExtension *tx;
				const bool is_prop_edit = (t->flag & T_PROP_EDIT) != 0;

				set_trans_object_base_flags(t);

				TransDataContainer *tc = TRANS_DATA_CONTAINER_FIRST_SINGLE(t);

				/* count */
				tc->data_len = CTX_DATA_COUNT(C, selected_bases);

				if (!tc->data_len) {
				/* clear here, main transform function escapes too */
				clear_trans_object_base_flags(t);
				return;
				}

				if (is_prop_edit) {
				tc->data_len += count_proportional_objects(t);
				}

				td = tc->data = MEM_callocN(tc->data_len * sizeof(TransData), "TransOb");
				tx = tc->data_ext = MEM_callocN(tc->data_len * sizeof(TransDataExtension), "TransObExtension");

				TransDataObject tdo = MEM_callocN(sizeof(tdo), __func__);
				t->custom.type.data = tdo;
				t->custom.type.free_cb = freeTransObjectCustomData;

				CTX_DATA_BEGIN (C, Base *, base, selected_bases) {
				Object *ob = base->object;

				td->flag = TD_SELECTED;
				td->protectflag = ob->protectflag;
				td->ext = tx;
				td->ext->rotOrder = ob->rotmode;

				if (base->flag & BA_TRANSFORM_CHILD) {
				td->flag \|= TD_NOCENTER;
				td->flag \|= TD_NO_LOC;
				}

				/* select linked objects, but skip them later */
				if (ID_IS_LINKED(ob)) {
				td->flag \|= TD_SKIP;
				}

				if (t->options & CTX_OBMODE_XFORM_OBDATA) {
				ID *id = ob->data;
				if (!id \|\| id->lib) {
				td->flag \|= TD_SKIP;
				}
				else if (BKE_object_is_in_editmode(ob)) {
				/* The object could have edit-mode data from another view-layer,
				* it's such a corner-case it can be skipped for now - Campbell. */
				td->flag \|= TD_SKIP;
				}
				}

				if (t->options & CTX_OBMODE_XFORM_OBDATA) {
				if ((td->flag & TD_SKIP) == 0) {
				trans_obdata_in_obmode_ensure_object(tdo, ob);
				}
				}

				ObjectToTransData(t, td, ob);
				td->val = NULL;
				td++;
				tx++;
				}
				CTX_DATA_END;

				if (is_prop_edit) {
				ViewLayer *view_layer = t->view_layer;
				View3D *v3d = t->view;
				Base *base;

				for (base = view_layer->object_bases.first; base; base = base->next) {
				Object *ob = base->object;

				/* if base is not selected, not a parent of selection
				* or not a child of selection and it is editable and selectable */
				if ((ob->flag & (BA_TRANSFORM_CHILD \| BA_TRANSFORM_PARENT)) == 0 &&
				(base->flag & BASE_SELECTED) == 0 && BASE_EDITABLE(v3d, base) &&
				BASE_SELECTABLE(v3d, base)) {
				td->protectflag = ob->protectflag;
				td->ext = tx;
				td->ext->rotOrder = ob->rotmode;

				ObjectToTransData(t, td, ob);
				td->val = NULL;
				td++;
				tx++;
				}
				}
				}

				if (t->options & CTX_OBMODE_XFORM_OBDATA) {
				GSet *objects_in_transdata = BLI_gset_ptr_new_ex(__func__, tc->data_len);
				td = tc->data;
				for (int i = 0; i < tc->data_len; i++, td++) {
				if ((td->flag & TD_SKIP) == 0) {
				BLI_gset_add(objects_in_transdata, td->ob);
				}
				}

				ViewLayer *view_layer = t->view_layer;
				View3D *v3d = t->view;

				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				Object *ob = base->object;

				/* if base is not selected, not a parent of selection
				* or not a child of selection and it is editable and selectable */
				if ((base->flag_legacy & BA_WAS_SEL) && (base->flag & BASE_SELECTED) == 0 &&
				BASE_EDITABLE(v3d, base) && BASE_SELECTABLE(v3d, base)) {

				Object *ob_parent = ob->parent;
				if (ob_parent != NULL) {
				if (!BLI_gset_haskey(objects_in_transdata, ob)) {
				bool parent_in_transdata = false;
				while (ob_parent != NULL) {
				if (BLI_gset_haskey(objects_in_transdata, ob_parent)) {
				parent_in_transdata = true;
				break;
				}
				ob_parent = ob_parent->parent;
				}
				if (parent_in_transdata) {
				trans_obdata_in_obmode_ensure_object(tdo, ob);
				}
				}
				}
				}
				}
				BLI_gset_free(objects_in_transdata, NULL);
				}

				if (t->options & CTX_OBMODE_XFORM_SKIP_CHILDREN) {

				#define BASE_XFORM_INDIRECT(base) \
				((base->flag_legacy & BA_WAS_SEL) && (base->flag & BASE_SELECTED) == 0)

				GSet *objects_in_transdata = BLI_gset_ptr_new_ex(__func__, tc->data_len);
				GHash *objects_parent_root = BLI_ghash_ptr_new_ex(__func__, tc->data_len);
				td = tc->data;
				for (int i = 0; i < tc->data_len; i++, td++) {
				if ((td->flag & TD_SKIP) == 0) {
				BLI_gset_add(objects_in_transdata, td->ob);
				}
				}

				ViewLayer *view_layer = t->view_layer;

				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				Object *ob = base->object;
				if (ob->parent != NULL) {
				if (ob->parent && !BLI_gset_haskey(objects_in_transdata, ob->parent) &&
				!BLI_gset_haskey(objects_in_transdata, ob)) {
				if (((base->flag_legacy & BA_WAS_SEL) && (base->flag & BASE_SELECTED) == 0)) {
				Base *base_parent = BKE_view_layer_base_find(view_layer, ob->parent);
				if (base_parent && !BASE_XFORM_INDIRECT(base_parent)) {
				Object *ob_parent_recurse = ob->parent;
				if (ob_parent_recurse != NULL) {
				while (ob_parent_recurse != NULL) {
				if (BLI_gset_haskey(objects_in_transdata, ob_parent_recurse)) {
				break;
				}
				ob_parent_recurse = ob_parent_recurse->parent;
				}

				if (ob_parent_recurse) {
				trans_obchild_in_obmode_ensure_object(
				tdo, ob, ob_parent_recurse, OB_SKIP_CHILD_PARENT_APPLY_TRANSFORM);
				BLI_ghash_insert(objects_parent_root, ob, ob_parent_recurse);
				base->flag_legacy \|= BA_TRANSFORM_LOCKED_IN_PLACE;
				}
				}
				}
				}
				}
				}
				}

				for (Base *base = view_layer->object_bases.first; base; base = base->next) {
				Object *ob = base->object;

				if (BASE_XFORM_INDIRECT(base) \|\| BLI_gset_haskey(objects_in_transdata, ob)) {
				/* pass. */
				}
				else if (ob->parent != NULL) {
				Base *base_parent = BKE_view_layer_base_find(view_layer, ob->parent);
				if (base_parent) {
				if (BASE_XFORM_INDIRECT(base_parent) \|\|
				BLI_gset_haskey(objects_in_transdata, ob->parent)) {
				trans_obchild_in_obmode_ensure_object(tdo, ob, NULL, OB_SKIP_CHILD_PARENT_IS_XFORM);
				base->flag_legacy \|= BA_TRANSFORM_LOCKED_IN_PLACE;
				}
				else {
				Object *ob_parent_recurse = BLI_ghash_lookup(objects_parent_root, ob->parent);
				if (ob_parent_recurse) {
				trans_obchild_in_obmode_ensure_object(
				tdo, ob, ob_parent_recurse, OB_SKIP_CHILD_PARENT_IS_XFORM_INDIRECT);
				}
				}
				}
				}
				}
				BLI_gset_free(objects_in_transdata, NULL);
				BLI_ghash_free(objects_parent_root, NULL, NULL);

				#undef BASE_XFORM_INDIRECT
				}
				}

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Texture Space Transform Creation
				*
				* Instead of transforming the selection, move the 2D/3D cursor.
				*
				* \{ */

				void createTransTexspace(TransInfo *t)
				{
				ViewLayer *view_layer = t->view_layer;
				TransData *td;
				Object *ob;
				ID *id;
				short *texflag;

				ob = OBACT(view_layer);

				if (ob == NULL) { // Shouldn't logically happen, but still...
				return;
				}

				id = ob->data;
				if (id == NULL \|\| !ELEM(GS(id->name), ID_ME, ID_CU, ID_MB)) {
				BKE_report(t->reports, RPT_ERROR, "Unsupported object type for text-space transform");
				return;
				}

				if (BKE_object_obdata_is_libdata(ob)) {
				BKE_report(t->reports, RPT_ERROR, "Linked data can't text-space transform");
				return;
				}

				{
				BLI_assert(t->data_container_len == 1);
				TransDataContainer *tc = t->data_container;
				tc->data_len = 1;
				td = tc->data = MEM_callocN(sizeof(TransData), "TransTexspace");
				td->ext = tc->data_ext = MEM_callocN(sizeof(TransDataExtension), "TransTexspace");
				}

				td->flag = TD_SELECTED;
				copy_v3_v3(td->center, ob->obmat[3]);
				td->ob = ob;

				copy_m3_m4(td->mtx, ob->obmat);
				copy_m3_m4(td->axismtx, ob->obmat);
				normalize_m3(td->axismtx);
				pseudoinverse_m3_m3(td->smtx, td->mtx, PSEUDOINVERSE_EPSILON);

				if (BKE_object_obdata_texspace_get(ob, &texflag, &td->loc, &td->ext->size, &td->ext->rot)) {
				ob->dtx \|= OB_TEXSPACE;
				*texflag &= ~ME_AUTOSPACE;
				}

				copy_v3_v3(td->iloc, td->loc);
				copy_v3_v3(td->ext->irot, td->ext->rot);
				copy_v3_v3(td->ext->isize, td->ext->size);
				}

				/** \} */