VolumeMeshObjectT_impl.hh

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//=============================================================================
//
//  MyTypes
//
//=============================================================================

#define VOLUMEMESHOBJECTT_CC

//== INCLUDES =================================================================

#include "VolumeMeshObject.hh"

#include <OpenFlipper/common/Types.hh>
#include <ACG/Scenegraph/DrawModes.hh>
#include <OpenFlipper/common/GlobalOptions.hh>
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>

#include "VolumeMeshDrawModesContainer.hh"

#include <ACG/Scenegraph/BoundingBoxNode.hh>

//== TYPEDEFS =================================================================

//== CLASS DEFINITION =========================================================

template<class MeshT>
VolumeMeshObject<MeshT>::VolumeMeshObject(const VolumeMeshObject& _object) :
    BaseObjectData(_object), mesh_(std::make_shared<MeshT>(*_object.mesh_.get())),
    statusAttrib_(*mesh_),
    colorAttrib_(*mesh_),
    normalAttrib_(*mesh_),
    texcoordAttrib_(*mesh_),
    meshNode_(NULL),
    shaderNode_(NULL),
    textureNode_(NULL)
{

    init();

    setName(name());
}

template<class MeshT>
VolumeMeshObject<MeshT>::VolumeMeshObject(DataType _typeId) :
    BaseObjectData(), mesh_(new MeshT()),
    statusAttrib_(*mesh_),
    colorAttrib_(*mesh_, ACG::Vec4f(1.0f, 1.0f, 1.0f, 1.0f) /* Default color */),
    normalAttrib_(*mesh_),
    texcoordAttrib_(*mesh_),
    meshNode_(NULL),
    shaderNode_(NULL),
    textureNode_(NULL)
{

    setDataType(_typeId);
    init();
}

template<class MeshT>
VolumeMeshObject<MeshT>::~VolumeMeshObject() {

    // Delete the data attached to this object (this will remove all perObject data)
    // Not the best way to do it but it will work.
    // This is only necessary if people use references to the mesh below and
    // they do something with the mesh in the destructor of their
    // perObjectData.
    deleteData();

    // No need to delete the scenegraph nodes as this will be managed by baseplugin
    meshNode_ = 0;
    shaderNode_ = 0;
    textureNode_ = 0;
}

template<class MeshT>
void VolumeMeshObject<MeshT>::cleanup() {

    BaseObjectData::cleanup();

    meshNode_ = 0;
    shaderNode_ = 0;
    textureNode_ = 0;

    init();
}

template<class MeshT>
void VolumeMeshObject<MeshT>::init() {

    // Only initialize scenegraph nodes when we initialized a gui!!
    if(OpenFlipper::Options::nogui())
        return;

    VolumeMeshDrawModesContainer drawModes;  // create this object before initializing the textureNode

    textureNode_  = new ACG::SceneGraph::TextureNode(materialNode() , "NEW TextureNode for ");

    shaderNode_  = new ACG::SceneGraph::ShaderNode(textureNode_ , "NEW ShaderNode for ");

    meshNode_ = new ACG::SceneGraph::VolumeMeshNodeT<MeshT>(*mesh_, statusAttrib_, colorAttrib_, normalAttrib_, texcoordAttrib_, materialNode(), shaderNode_, "NEW VolumeMeshNode");

    if(manipulatorNode() == NULL)
        std::cerr << "Error when creating volume mesh object! Manipulator node is NULL!" << std::endl;

    if(materialNode() == NULL)
        std::cerr << "Error when creating mesh object! Material node is NULL!" << std::endl;

    materialNode()->set_point_size(12.0f);

    QString shaderDir = OpenFlipper::Options::shaderDirStr() + OpenFlipper::Options::dirSeparator();

    std::string shaderDirectory = std::string( shaderDir.toUtf8() );
    shaderNode_->setShaderDir( shaderDirectory );

    if(!OpenFlipper::Options::coreProfile())
    {
        if ( QFile( shaderDir + "Phong/Vertex.glsl").exists() && QFile( shaderDir + "Phong/Fragment.glsl" ).exists() )
        {
            shaderNode_->setShader(drawModes.cellsPhongShaded,    "Phong/Vertex.glsl" , "Phong/Fragment.glsl" );
            shaderNode_->setShader(drawModes.facesPhongShaded,    "Phong/Vertex.glsl" , "Phong/Fragment.glsl" );
            shaderNode_->setShader(drawModes.halffacesPhongShaded,"Phong/Vertex.glsl" , "Phong/Fragment.glsl" );
        }
        else
          std::cerr << "Shader Files for Phong not found!" << std::endl;
    }

    // Update all nodes
    update();
}

// ===============================================================================
// Name/Path Handling
// ===============================================================================

template<class MeshT>
void VolumeMeshObject<MeshT>::setName(QString _name) {
    BaseObjectData::setName(_name);

    // No update when gui is not active
    if(OpenFlipper::Options::nogui())
        return;

    std::string meshnodename = std::string("VolumeMeshNode for mesh " + _name.toUtf8());
    meshNode_->name(meshnodename);

    std::string shadernodename = std::string("ShaderNode for mesh " + _name.toUtf8());
    shaderNode_->name(shadernodename);

    std::string texturenodename = std::string("TextureNode for mesh " + _name.toUtf8());
    textureNode_->name(texturenodename);
}

// ===============================================================================
// Content
// ===============================================================================

template<class MeshT>
MeshT* VolumeMeshObject<MeshT>::mesh() {
    return mesh_.get();
}

template<class MeshT>
const MeshT* VolumeMeshObject<MeshT>::mesh() const {
    return mesh_.get();
}

template<class MeshT>
void VolumeMeshObject<MeshT>::update(UpdateType _type) {

    // No update necessary if no gui
    if(OpenFlipper::Options::nogui())
        return;

    PluginFunctions::setMainGLContext();

    if(_type.contains(UPDATE_ALL) || _type.contains(UPDATE_TOPOLOGY)) {
        updateGeometry();
        updateColor();
        updateTopology();
        updateSelection();
    } else {
        if(_type.contains(UPDATE_GEOMETRY)) {
            updateGeometry();
        }
        if(_type.contains(UPDATE_SELECTION)) {
            updateSelection();
        }
        if(_type.contains(UPDATE_COLOR)) {
            updateColor();
        }
        if (_type.contains(UPDATE_TEXTURE)){
            updateTexture();
        }
    }
}

template<class MeshT>
void VolumeMeshObject<MeshT>::updateSelection() {

    if(meshNode_) {
        meshNode_->set_selection_changed(true);
    }
}

template<class MeshT>
void VolumeMeshObject<MeshT>::updateGeometry() {

    normalAttrib_.update_face_normals();

    if(meshNode_) {
        meshNode_->set_geometry_changed(true);
    }
}

template<class MeshT>
void VolumeMeshObject<MeshT>::updateColor() {

    if(meshNode_)
        meshNode_->set_color_changed(true);
}

template<class MeshT>
void VolumeMeshObject<MeshT>::updateTexture()
{
    if(meshNode_)
        meshNode_->set_texture_changed(true);

}

template<class MeshT>
void VolumeMeshObject<MeshT>::updateTopology() {
    if(meshNode_) {
        meshNode_->set_topology_changed(true);
    }
}

template<class MeshT>
BaseObject* VolumeMeshObject<MeshT>::copy() {
    VolumeMeshObject< MeshT >* object = new VolumeMeshObject<MeshT>(*this);
    return static_cast<BaseObject*> (object);
}

template<class MeshT>
ACG::SceneGraph::ShaderNode* VolumeMeshObject<MeshT>::shaderNode()
{
    return shaderNode_;
}

template<class MeshT>
ACG::SceneGraph::TextureNode* VolumeMeshObject<MeshT>::textureNode()
{
    return textureNode_;
}

// ===============================================================================
// Visualization
// ===============================================================================
template<class MeshT>
ACG::SceneGraph::VolumeMeshNodeT<MeshT>* VolumeMeshObject<MeshT>::meshNode() {
    return meshNode_;
}

template<class MeshT>
void VolumeMeshObject<MeshT>::boundingBox(ACG::Vec3d& _bbMin, ACG::Vec3d& _bbMax) {
    if(meshNode_) {
        _bbMin = ACG::Vec3d(FLT_MAX, FLT_MAX, FLT_MAX);
        _bbMax = ACG::Vec3d(-FLT_MAX, -FLT_MAX, -FLT_MAX);
        meshNode_->boundingBox(_bbMin, _bbMax);
    } else {
        std::cerr << "Error: Bounding box computation via Scenegraph not available without gui." << std::endl;
    }
}

// ===============================================================================
// Object information
// ===============================================================================

template<class MeshT>
QString VolumeMeshObject<MeshT>::getObjectinfo() {
    QString output;

    output += "========================================================================\n";
    output += BaseObjectData::getObjectinfo();

    if(dataType(typeId("PolyhedralMesh")))
        output += "Object Contains Polyhedral Mesh : ";

    if(dataType(typeId("HexahedralMesh")))
        output += "Object Contains Hexahedral Mesh : ";

    output += QString::number(mesh()->n_vertices()) + " vertices\n";
    output += QString::number(mesh()->n_edges()) += " edges\n";
    output += QString::number(mesh()->n_halfedges()) += " half-edges\n";
    output += QString::number(mesh()->n_faces()) += " faces\n";
    output += QString::number(mesh()->n_halffaces()) += " half-faces\n";
    output += QString::number(mesh()->n_cells()) += " cells\n";

    output += "========================================================================\n";
    return output;
}

// ===============================================================================
// Picking
// ===============================================================================

template<class MeshT>
bool VolumeMeshObject<MeshT>::picked(unsigned int _node_idx) {
    return (_node_idx == meshNode_->id());
}

template<class MeshT>
void VolumeMeshObject<MeshT>::enablePicking(bool _enable) {
    if(OpenFlipper::Options::nogui())
        return;

    meshNode_->enablePicking(_enable);
    shaderNode_->enablePicking(_enable);
}

template<class MeshT>
bool VolumeMeshObject<MeshT>::pickingEnabled() {
    return meshNode_->pickingEnabled();
}

//=============================================================================

template<class MeshT>
BaseNode*
VolumeMeshObject<MeshT>::primaryNode() {
    return boundingBoxNode();
}

//=============================================================================