graphicalwobject.cpp

/********************************************************************************
 *  FARSA Experiments Library                                                   *
 *  Copyright (C) 2007-2012                                                     *
 *  Stefano Nolfi <stefano.nolfi@istc.cnr.it>                                   *
 *  Onofrio Gigliotta <onofrio.gigliotta@istc.cnr.it>                           *
 *  Gianluca Massera <emmegian@yahoo.it>                                        *
 *  Tomassino Ferrauto <tomassino.ferrauto@istc.cnr.it>                         *
 *                                                                              *
 *  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 St, Fifth Floor, Boston, MA  02110-1301  USA  *
 ********************************************************************************/

#include "graphicalwobject.h"

namespace farsa {

GraphicalWObject::GraphicalWObject(World* world, QString name, const wMatrix& tm) :
    WObject(world, name, tm, false),
    m_attachedObject(NULL),
    m_displacement(wMatrix::identity())
{
    // Adding here to the world, even if not at the end of the hierarchy (all classes inheriting
    // from this have the same renderer anyway)
    world->pushObject(this);
}

GraphicalWObject::~GraphicalWObject()
{
    // Nothing do to here
}

void GraphicalWObject::attachToObject(WObject* object, bool makeOwner, const wMatrix& displacement)
{
    m_attachedObject = object;
    m_displacement = displacement;

    if (makeOwner) {
        setOwner(m_attachedObject, true);
    } else {
        setOwner(NULL);
    }
}

void GraphicalWObject::setDisplacement(const wMatrix& displacement)
{
    m_displacement = displacement;
}

void GraphicalWObject::updateAndRender(RenderWObject* renderer, QGLContext* gw)
{
    updateMatrixFromAttachedObject();

    render(renderer, gw);
}

void GraphicalWObject::updateAndRenderAABB(RenderWObject* renderer, RenderWorld* gw)
{
    updateMatrixFromAttachedObject();

    renderAABB(renderer, gw);
}

void GraphicalWObject::updateAndCalculateAABB(wVector& minPoint, wVector& maxPoint, const wMatrix tm)
{
    updateMatrixFromAttachedObject();

    calculateAABB(minPoint, maxPoint, tm);
}

void GraphicalWObject::updateAndCalculateOBB(wVector& dimension, wVector& minPoint, wVector& maxPoint)
{
    updateMatrixFromAttachedObject();

    calculateOBB(dimension, minPoint, maxPoint);
}

void GraphicalWObject::renderAABB(RenderWObject*, RenderWorld*)
{
    // The default implementation does nothing
}

void GraphicalWObject::calculateAABB(wVector& minPoint, wVector& maxPoint, const wMatrix)
{
    // The default implementation does nothing
    minPoint = wVector(0, 0, 0);
    maxPoint = wVector(0, 0, 0);
}

void GraphicalWObject::calculateOBB(wVector& dimension, wVector& minPoint, wVector& maxPoint)
{
    // The default implementation does nothing
    dimension = wVector(0, 0, 0);
    minPoint = wVector(0, 0, 0);
    maxPoint = wVector(0, 0, 0);
}

void GraphicalWObject::updateMatrixFromAttachedObject()
{
    if (m_attachedObject == NULL) {
        return;
    }

    setMatrix(m_displacement * m_attachedObject->matrix());
}

}