CameraExporter.cpp

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/*
 * $Id: CameraExporter.cpp 38079 2011-07-04 08:59:28Z jesterking $
 *
 * ***** 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 <string>

#include "COLLADASWCamera.h"
#include "COLLADASWCameraOptic.h"

#include "DNA_camera_types.h"

#include "CameraExporter.h"

#include "collada_internal.h"

CamerasExporter::CamerasExporter(COLLADASW::StreamWriter *sw): COLLADASW::LibraryCameras(sw){}

template<class Functor>
void forEachCameraObjectInScene(Scene *sce, Functor &f, bool export_selected)
{
        Base *base= (Base*) sce->base.first;
        while(base) {
                Object *ob = base->object;
                        
                if (ob->type == OB_CAMERA && ob->data
                        && !(export_selected && !(ob->flag & SELECT))) {
                        f(ob, sce);
                }
                base= base->next;
        }
}

void CamerasExporter::exportCameras(Scene *sce, bool export_selected)
{
        openLibrary();
        
        forEachCameraObjectInScene(sce, *this, export_selected);
        
        closeLibrary();
}
void CamerasExporter::operator()(Object *ob, Scene *sce)
{
        // TODO: shiftx, shifty, YF_dofdist
        Camera *cam = (Camera*)ob->data;
        std::string cam_id(get_camera_id(ob));
        std::string cam_name(id_name(cam));
        
        if (cam->type == CAM_PERSP) {
                COLLADASW::PerspectiveOptic persp(mSW);
                persp.setXFov(lens_to_angle(cam->lens)*(180.0f/M_PI));
                persp.setAspectRatio((float)(sce->r.xsch)/(float)(sce->r.ysch));
                persp.setZFar(cam->clipend);
                persp.setZNear(cam->clipsta);
                COLLADASW::Camera ccam(mSW, &persp, cam_id, cam_name);
                addCamera(ccam);
        }
        else {
                COLLADASW::OrthographicOptic ortho(mSW);
                ortho.setXMag(cam->ortho_scale);
                ortho.setAspectRatio((float)(sce->r.xsch)/(float)(sce->r.ysch));
                ortho.setZFar(cam->clipend);
                ortho.setZNear(cam->clipsta);
                COLLADASW::Camera ccam(mSW, &ortho, cam_id, cam_name);
                addCamera(ccam);
        }
}