MergePlugin.cc

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#include "MergePlugin.hh"

#include "OpenFlipper/BasePlugin/PluginFunctions.hh"
#include <OpenFlipper/BasePlugin/RPCWrappers.hh>

#include <ObjectTypes/PolyMesh/PolyMesh.hh>
#include <ObjectTypes/TriangleMesh/TriangleMesh.hh>
#include <QInputDialog>

namespace
{
  template< class MeshT >
  void getAllMeshes(std::vector< MeshT* > & meshes, const std::vector< BaseObjectData* > & objects)
  {
    for (uint i=0; i < objects.size(); i++)
    {
      MeshT* t;
      if(PluginFunctions::getMesh(objects[i]->id(),t))
        meshes.push_back( t );
    }
  }

  void getTargets(std::vector< BaseObjectData* > & _objects)
  {
    _objects.clear();
    //read all target objects
    for (auto* o_it : PluginFunctions::objects(PluginFunctions::TARGET_OBJECTS,DataType(DATA_TRIANGLE_MESH | DATA_POLY_MESH)) )
        _objects.push_back( o_it );
  }

  template< class MeshT >
  void convertMeshes(const DataType & _type, std::vector< int >& convertedIds, std::vector< MeshT* >& _meshes)
  {
    for (auto* o_it : PluginFunctions::objects(PluginFunctions::TARGET_OBJECTS,_type) )
    {
        //convert polyMesh to triMesh or vice versa
        convertedIds.push_back(RPC::callFunctionValue<int>("meshconvert","convert",o_it->id(), _type != DATA_TRIANGLE_MESH));
        MeshT* ptr;
        PluginFunctions::getMesh(convertedIds.back(),ptr);
        _meshes.push_back(ptr);
    }
  }
}

void MergePlugin::slotCleanup( DataType _type, bool _deleteSeparateObjects )
{
  //clean up conversion objects
  for(int i : convertedIds)     
     emit deleteObject( i );

  convertedIds.clear();

  if(_deleteSeparateObjects)
  {
    //clean up separated objects
    for (size_t i=0; i < objects.size(); i++)
      emit deleteObject( (objects[i])->id() );

    objects.clear();
  }
  //clean up unused merge target
  if(_type == DATA_TRIANGLE_MESH)
    emit deleteObject( polyMergeID );
  else
    emit deleteObject( triMergeID );
}

DataType MergePlugin::checkType(const std::vector< BaseObjectData* > & objects )
{
  DataType type = (objects[0])->dataType();
  bool askForType = false;
  for (uint i=1; i < objects.size(); i++)
    if ( type != (objects[i])->dataType() ){
      askForType = true;
      break;
    }

  if(askForType)
  {
    QStringList types;
    types.append(dataTypeName(DATA_TRIANGLE_MESH));
    types.append(dataTypeName(DATA_POLY_MESH));
    bool ok;
    QString result = QInputDialog::getItem(nullptr,
                          tr("Select Mesh Type"),
                          tr("Convert meshes to:"),
                          types,
                          1,
                          false,
                          &ok);
    if(ok)
    {
      if( result == dataTypeName(DATA_POLY_MESH))
      {
        type = DATA_POLY_MESH;        
      }
      else
      {
        type = DATA_TRIANGLE_MESH;        
      }
    }
    else
      return DataType();
  }
  return type;
}


MergePlugin::MergePlugin() :
  tool_(nullptr),
  polyMergeID(0),
  triMergeID(0)
{

}

void MergePlugin::initializePlugin() {
  if ( ! OpenFlipper::Options::gui())
    return;
   tool_ = new MergeToolBox();

   QSize size(300, 300);
   tool_->resize(size);

   connect(tool_->mergeButton, SIGNAL( clicked() ), this, SLOT( mergeObjects() ) );
   tool_->mergeButton->setStatusTip("Merge all target objects into one without changing geometry");
   tool_->mergeButton->setToolTip( tool_->mergeButton->statusTip() );
   QIcon* toolIcon_ = new QIcon(OpenFlipper::Options::iconDirStr()+OpenFlipper::Options::dirSeparator()+"merge.png");

   connect(this,SIGNAL(cleanup(DataType, bool)),this,SLOT(slotCleanup(DataType, bool)),Qt::QueuedConnection);

   emit addToolbox( tr("Merge") , tool_, toolIcon_ );
}

void MergePlugin::pluginsInitialized()
{
  //populate scripting function
  emit setSlotDescription("mergeObjects(const std::vector< BaseObjectData* >,QString,bool,DataType)", "Merges multiple meshes into one mesh. returns the ID of the new mesh or -1 in case of error.",
                          QString("objects,mergedName,deleteSeparateObjects").split(","),
                          QString(" vector of BaseObjectData* containing Poly or TriMeshes to be merged, name for the merged object, flag to remove separated objects default is true, DataType for the new mesh if used in nogui mode").split(","));

  emit setSlotDescription("mergeObjects(IdList,QString,bool,DataType)", "Merges multiple meshes into one mesh. returns the ID of the new mesh or -1 in case of error.",
                          QString("objects,mergedName,deleteSeparateObjects").split(","),
                          QString(" vector of Object Ids of Poly or TriMeshes to be merged, name for the merged object, flag to remove separated objects default is true, DataType for the new mesh if used in nogui mode").split(","));
}

int MergePlugin::mergeObjects(IdList _objects, QString _name, bool _deleteSeparateObjects, DataType _type)
{
  std::vector< BaseObjectData* > objects;
    for(int i : _objects)
    {
      BaseObject* obj;
      PluginFunctions::getObject(i,obj);
      objects.push_back(PluginFunctions::baseObjectData(obj));
    }
    return mergeObjects(objects, _name, _deleteSeparateObjects, _type);
}

int MergePlugin::mergeObjects(const std::vector< BaseObjectData* > & _objects, QString _name, bool _deleteSeparateObjects, DataType _type)
{
  int result = -1;
  if (_objects.size() < 2)
    return -1; //nothing to do

  objects = _objects;

  DataType type;
  if ( OpenFlipper::Options::gui())
    type = checkType(objects);
  else
    type = _type;

  //user pushed the cancel button
  if(type != DATA_TRIANGLE_MESH && type != DATA_POLY_MESH)
    return -1;

  convertedIds.clear();
  std::vector< TriMesh* > triMeshes;
  std::vector< PolyMesh* > polyMeshes;
  TriMesh* triMergePtr;
  PolyMesh* polyMergePtr;

  emit addEmptyObject(DATA_POLY_MESH, polyMergeID);
  PluginFunctions::getMesh(polyMergeID, polyMergePtr);
  polyMeshes.push_back(polyMergePtr);
  emit addEmptyObject(DATA_TRIANGLE_MESH, triMergeID);
  PluginFunctions::getMesh(triMergeID,triMergePtr);
  triMeshes.push_back(triMergePtr);

  getAllMeshes(triMeshes,objects);
  getAllMeshes(polyMeshes,objects);

  if ( type == DATA_TRIANGLE_MESH ) {
    // Convert PolyMeshes to TriMeshes
    convertMeshes(DATA_POLY_MESH,convertedIds,triMeshes);

    mergeMeshes(triMeshes);
    (triMeshes[0])->update_normals();
    BaseObject* bo;
    PluginFunctions::getObject(triMergeID,bo);
    bo->setName(_name);
    result = bo->id();
  } else {
    // Convert TriMeshes to PolyMeshes
    convertMeshes(DATA_TRIANGLE_MESH,convertedIds,polyMeshes);

    mergeMeshes(polyMeshes);
    (polyMeshes[0])->update_normals();
    BaseObject* bo;
    PluginFunctions::getObject(polyMergeID,bo);
    bo->setName(_name);
    result = bo->id();
  }

  emit updatedObject(triMergeID,UPDATE_ALL);
  emit updatedObject(polyMergeID,UPDATE_ALL);

  //clean up after merging (removes OF objects)
  emit cleanup( type, _deleteSeparateObjects );
  return result;
}

void MergePlugin::mergeObjects()
{
  getTargets(objects);
  mergeObjects(objects,tool_->mergedName->text(),tool_->deleteObjects->isChecked());
}