Blender V2.61 - r43446

collada_utils.cpp

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00001 /*
00002  * ***** BEGIN GPL LICENSE BLOCK *****
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License
00006  * as published by the Free Software Foundation; either version 2
00007  * of the License, or (at your option) any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software Foundation,
00016  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00017  *
00018  * Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov, Nathan Letwory.
00019  *
00020  * ***** END GPL LICENSE BLOCK *****
00021  */
00022 
00028 /* COLLADABU_ASSERT, may be able to remove later */
00029 #include "COLLADABUPlatform.h"
00030 
00031 #include "COLLADAFWGeometry.h"
00032 #include "COLLADAFWMeshPrimitive.h"
00033 #include "COLLADAFWMeshVertexData.h"
00034 
00035 #include "DNA_customdata_types.h"
00036 #include "DNA_object_types.h"
00037 
00038 #include "BLI_math.h"
00039 
00040 #include "BKE_context.h"
00041 #include "BKE_customdata.h"
00042 #include "BKE_depsgraph.h"
00043 #include "BKE_object.h"
00044 
00045 #include "WM_api.h" // XXX hrm, see if we can do without this
00046 #include "WM_types.h"
00047 
00048 float bc_get_float_value(const COLLADAFW::FloatOrDoubleArray& array, unsigned int index)
00049 {
00050     if (index >= array.getValuesCount())
00051         return 0.0f;
00052 
00053     if (array.getType() == COLLADAFW::MeshVertexData::DATA_TYPE_FLOAT)
00054         return array.getFloatValues()->getData()[index];
00055     else 
00056         return array.getDoubleValues()->getData()[index];
00057 }
00058 
00059 // copied from /editors/object/object_relations.c
00060 int bc_test_parent_loop(Object *par, Object *ob)
00061 {
00062     /* test if 'ob' is a parent somewhere in par's parents */
00063     
00064     if(par == NULL) return 0;
00065     if(ob == par) return 1;
00066     
00067     return bc_test_parent_loop(par->parent, ob);
00068 }
00069 
00070 // a shortened version of parent_set_exec()
00071 // if is_parent_space is true then ob->obmat will be multiplied by par->obmat before parenting
00072 int bc_set_parent(Object *ob, Object *par, bContext *C, bool is_parent_space)
00073 {
00074     Object workob;
00075     Main *bmain = CTX_data_main(C);
00076     Scene *sce = CTX_data_scene(C);
00077     
00078     if (!par || bc_test_parent_loop(par, ob))
00079         return false;
00080 
00081     ob->parent = par;
00082     ob->partype = PAROBJECT;
00083 
00084     ob->parsubstr[0] = 0;
00085 
00086     if (is_parent_space) {
00087         float mat[4][4];
00088         // calc par->obmat
00089         where_is_object(sce, par);
00090 
00091         // move child obmat into world space
00092         mult_m4_m4m4(mat, par->obmat, ob->obmat);
00093         copy_m4_m4(ob->obmat, mat);
00094     }
00095     
00096     // apply child obmat (i.e. decompose it into rot/loc/size)
00097     object_apply_mat4(ob, ob->obmat, 0, 0);
00098 
00099     // compute parentinv
00100     what_does_parent(sce, ob, &workob);
00101     invert_m4_m4(ob->parentinv, workob.obmat);
00102 
00103     ob->recalc |= OB_RECALC_OB | OB_RECALC_DATA;
00104     par->recalc |= OB_RECALC_OB;
00105 
00106     DAG_scene_sort(bmain, sce);
00107     DAG_ids_flush_update(bmain, 0);
00108     WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
00109 
00110     return true;
00111 }
00112