MaterialExporter.cpp

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/*
 * ***** 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.
 *
 * Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov, Jan Diederich, Tod Liverseed,
 *                 Nathan Letwory
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "MaterialExporter.h"
#include "COLLADABUUtils.h"
#include "collada_internal.h"

MaterialsExporter::MaterialsExporter(COLLADASW::StreamWriter *sw, const ExportSettings *export_settings): COLLADASW::LibraryMaterials(sw), export_settings(export_settings) {}

void MaterialsExporter::exportMaterials(Scene *sce)
{
    if(hasMaterials(sce)) {
        openLibrary();

        MaterialFunctor mf;
        mf.forEachMaterialInScene<MaterialsExporter>(sce, *this, this->export_settings->selected);

        closeLibrary();
    }
}


bool MaterialsExporter::hasMaterials(Scene *sce)
{
    Base *base = (Base *)sce->base.first;
    
    while(base) {
        Object *ob= base->object;
        int a;
        for(a = 0; a < ob->totcol; a++)
        {
            Material *ma = give_current_material(ob, a+1);

            // no material, but check all of the slots
            if (!ma) continue;

            return true;
        }
        base= base->next;
    }
    return false;
}

void MaterialsExporter::operator()(Material *ma, Object *ob)
{
    std::string name(id_name(ma));

    openMaterial(get_material_id(ma), name);

    std::string efid = translate_id(name) + "-effect";
    addInstanceEffect(COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, efid));

    closeMaterial();
}