TYGeometryNodeGraphic.cpp

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/*
 * Copyright (C) <2012-2024> <EDF-DTG> <FRANCE>
 * This file is part of Code_TYMPAN (R).
 * Code_TYMPAN (R) 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 3 of the License, or
 * (at your option) any later version.
 * Code_TYMPAN (R) 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 Code_TYMPAN (R). If not, see <https://www.gnu.org/licenses/>.
 */
 
#include <QtOpenGL> // this MUST be included before GL/*.h
#include "TYGeometryNodeGraphic.h"
#include "gui/gl/TYRenderContext.h"
#include <QtOpenGL>
 
TYGeometryNodeGraphic::TYGeometryNodeGraphic(TYGeometryNode* pElement)
    : TYElementGraphic(pElement), _isMatrixDirty(true)
{
}
 
TYGeometryNodeGraphic::~TYGeometryNodeGraphic() {}
 
void TYGeometryNodeGraphic::update(bool force /*=false*/)
{
    // On affecte le meme etat au GeoNode que l'element pour savoir s'il est actif dans le calcul courant
    if (getModified() || force)
    {
        getElement()->setInCurrentCalcul(getElement()->getElement()->isInCurrentCalcul());
    }
    TYElementGraphic::update(force);
}
 
void TYGeometryNodeGraphic::computeMatrices() const
{
    // Calcul de la matrice du GeometryNode par rapport à son GeomtryNode parent
    float m[16];
    TYGeometryNode* geoNode = getElement();
    OMatrix matrix = geoNode->getMatrix();
    for (int i = 0; i < 4; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            m[i * 4 + j] = matrix._m[i][j];
        }
    }
    _matrix = QMatrix4x4{m};
 
    // Calcul de la matrice du GeometryNode par rapport au Projet
    _globalMatrix = _matrix;
    TYGeometryNode* geoNodeParent = geoNode->GetGeoNodeParent();
    if (geoNodeParent != nullptr)
    {
        TYGeometryNodeGraphic* geoNodeGraphic =
            dynamic_cast<TYGeometryNodeGraphic*>(geoNodeParent->getGraphicObject().getRealPointer());
        _globalMatrix = geoNodeGraphic->globalMatrix() * _matrix;
    }
    _isMatrixDirty = false;
}
 
void TYGeometryNodeGraphic::pushMatrix()
{
    glPushMatrix();
 
    GLdouble m[4][4];
    OMatrix matrix = getElement()->getMatrix();
    for (int j = 0; j < 4; j++)
    {
        for (int k = 0; k < 4; k++)
        {
            m[j][k] = matrix._m[k][j];
        }
    }
    glMultMatrixd((GLdouble*)m);
}
void TYGeometryNodeGraphic::displayPushingParentMatrix(TYRenderContext& renderContext,
                                                       TYGeometryNode* pDansCeRepere)
{
    TYListPtrGeoNode GeoNodeParents;
    TYGeometryNode* pThisGeoNode = ((TYGeometryNode*)getElement());
    pThisGeoNode->GetGeoNodeParentList(GeoNodeParents);
    TYListPtrGeoNode::iterator ite = GeoNodeParents.end();
    if (!GeoNodeParents.empty())
    {
        ite--; // end n'est jamais valide
    }
    int i = 0;
    int nbPushMatrix = 0;
    bool bPushMatrix = false;
    for (i = 0; i < GeoNodeParents.size() && (*ite) != pThisGeoNode; i++)
    {
        if (pDansCeRepere == NULL) // NULL = site pere (repere du TYSite le plus haut)
        {
            bPushMatrix = true;
        }
        if (bPushMatrix)
        {
            // PushMatrix
            TYGeometryNode* pCurrentTYGeometryNode = (TYGeometryNode*)(*ite);
            LPTYElementGraphic pCurrentTYElementGraphic = pCurrentTYGeometryNode->getGraphicObject();
            TYGeometryNodeGraphic* pCurrentTYGeometryNodeGraphic =
                (TYGeometryNodeGraphic*)pCurrentTYElementGraphic.getRealPointer();
            pCurrentTYGeometryNodeGraphic->pushMatrix();
            nbPushMatrix++;
        }
        if ((*ite) == pDansCeRepere) // NULL = root
        {
            bPushMatrix = true;
        }
 
        if (ite != GeoNodeParents.begin())
        {
            ite--;
        }
    }
    display(renderContext);
    // PopMatrix
    for (i = 0; i < nbPushMatrix; i++)
    {
        glPopMatrix();
    }
}
 
void TYGeometryNodeGraphic::getChilds(TYListPtrTYElementGraphic& childs, bool recursif /*=true*/)
{
    TYElement* element = getElement()->getElement();
    if (element != nullptr)
    {
        TYElementGraphic* pTYElementGraphic = element->getGraphicObject();
        childs.push_back(pTYElementGraphic);
        if (recursif)
        {
            pTYElementGraphic->getChilds(childs, recursif);
        }
    }
}
 
void TYGeometryNodeGraphic::invalidateMatrix()
{
 
    _isMatrixDirty = true;
 
    // propagation aux enfants;
    TYListPtrTYElementGraphic children;
    getChilds(children, true);
    for (TYListPtrTYElementGraphic::iterator it = children.begin(); it != children.end(); ++it)
    {
        TYGeometryNodeGraphic* child = dynamic_cast<TYGeometryNodeGraphic*>(*it);
        if (child != nullptr)
        {
            child->_isMatrixDirty = true;
        }
    }
}
 
OBox TYGeometryNodeGraphic::computeBoundingBox() const
{
    OBox boundingBox;
    boundingBox.Enlarge(((TYElementGraphic*)getElement()->getElement()->getGraphicObject())->boundingBox());
    return boundingBox;
}
 
void TYGeometryNodeGraphic::display(TYRenderContext& renderContext)
{
    pushMatrix();
 
    LPTYElementGraphic pGraphicObject = getElement()->getElement()->getGraphicObject();
 
    pGraphicObject->display(renderContext);
 
    glPopMatrix();
}