0031668: Visualization - WebGL sample doesn't work on Emscripten 1.39

[occt.git] / src / RWHeaderSection / RWHeaderSection_ReadWriteModule.cxx

// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.


#include <HeaderSection_FileDescription.hxx>
#include <HeaderSection_FileName.hxx>
#include <HeaderSection_FileSchema.hxx>
#include <HeaderSection_Protocol.hxx>
#include <Interface_Check.hxx>
#include <Interface_Macros.hxx>
#include <Interface_ParamType.hxx>
#include <Interface_ReaderLib.hxx>
#include <RWHeaderSection_ReadWriteModule.hxx>
#include <RWHeaderSection_RWFileDescription.hxx>
#include <RWHeaderSection_RWFileName.hxx>
#include <RWHeaderSection_RWFileSchema.hxx>
#include <Standard_Transient.hxx>
#include <Standard_Type.hxx>
#include <StepData_StepReaderData.hxx>
#include <StepData_StepWriter.hxx>
#include <StepData_UndefinedEntity.hxx>
#include <StepData_WriterLib.hxx>
#include <TCollection_AsciiString.hxx>

IMPLEMENT_STANDARD_RTTIEXT(RWHeaderSection_ReadWriteModule,StepData_ReadWriteModule)

// -- General Declarations (Recognize, StepType) ---
static TCollection_AsciiString PasReco("");    // neutralise StartEntity de SW
static TCollection_AsciiString Reco_FileName ("FILE_NAME");
static TCollection_AsciiString Reco_FileDescription ("FILE_DESCRIPTION");
static TCollection_AsciiString Reco_FileSchema ("FILE_SCHEMA");

	// -- Definition of the libraries --

RWHeaderSection_ReadWriteModule::RWHeaderSection_ReadWriteModule ()
{
	Handle(HeaderSection_Protocol) protocol = new HeaderSection_Protocol;
	StepData_WriterLib::SetGlobal(this,protocol);
	Interface_ReaderLib::SetGlobal(this,protocol);
}

	// --- Case Recognition ---

Standard_Integer RWHeaderSection_ReadWriteModule::CaseStep
	(const TCollection_AsciiString& key) const
{
	if (key.IsEqual(Reco_FileName)) return 1;
	if (key.IsEqual(Reco_FileDescription)) return 2;
	if (key.IsEqual(Reco_FileSchema)) return 3;
return 0;
}

	// --- External Mapping Case Recognition ---
#ifdef OCCT_DEBUG
Standard_Integer RWHeaderSection_ReadWriteModule::CaseStep (const TColStd_SequenceOfAsciiString& types) const
{
  Standard_Integer NbComp = types.Length();
  if (NbComp < 2) {
    std::cout << "Plex Instance illegal " << std::endl;
  }
  return 0;
}
#else
Standard_Integer RWHeaderSection_ReadWriteModule::CaseStep (const TColStd_SequenceOfAsciiString&) const
{ return 0; }
#endif

	// --- External Mapping Recognition ---

Standard_Boolean RWHeaderSection_ReadWriteModule::IsComplex
	(const Standard_Integer /*CN*/) const
{
	return Standard_False;
}



const TCollection_AsciiString& RWHeaderSection_ReadWriteModule::StepType
	(const Standard_Integer CN) const
{
	switch (CN) {
	  case 1 : return Reco_FileName;
	  case 2 : return Reco_FileDescription;
	  case 3 : return Reco_FileSchema;
	  default : return PasReco;
	}
}

	// -- Reading of a file --

void RWHeaderSection_ReadWriteModule::ReadStep
	(const Standard_Integer CN,
	 const Handle(StepData_StepReaderData)& data,
	 const Standard_Integer num,
	 Handle(Interface_Check)& ach,
	 const Handle(Standard_Transient)&ent) const
{
	if (CN == 0) return;
	switch (CN) {
	  case 1 : 
	    {
	      DeclareAndCast(HeaderSection_FileName, anent, ent);
	      RWHeaderSection_RWFileName tool;
	      if (anent.IsNull()) ach->AddFail("Type Mismatch on FileName");
	      else tool.ReadStep (data,num,ach,anent);
	    }

	    break;
	  case 2 : 
	    {
	      DeclareAndCast(HeaderSection_FileDescription, anent, ent);
	      RWHeaderSection_RWFileDescription tool;
	      if (anent.IsNull()) ach->AddFail("Type Mismatch on FileDescription");
	      else tool.ReadStep (data,num,ach,anent);
	    }

	    break;
	  case 3 : 
	    {
	      DeclareAndCast(HeaderSection_FileSchema, anent, ent);
	      RWHeaderSection_RWFileSchema tool;
	      if (anent.IsNull()) ach->AddFail("Type Mismatch on FileSchema");
	      else tool.ReadStep (data,num,ach,anent);
	    }

	    break;
	  case 4 : 
	    {
	      DeclareAndCast(StepData_UndefinedEntity,und,ent);
	      if (und.IsNull()) ach->AddFail
		("# Entity neither Recognized nor set as UndefinedEntity from StepData #");
	      else und->ReadRecord(data,num,ach);
	    }

	    break;
	  default : ach->AddFail("Type Mismatch when reading - Entity");
	}

return;}

	// -- Writing of a file --

void RWHeaderSection_ReadWriteModule::WriteStep
	(const Standard_Integer CN,
	 StepData_StepWriter& SW,
	 const Handle(Standard_Transient)&ent) const
{
	if (CN == 0) return;
	switch (CN) {
	  case 1 : 
	    {
	      DeclareAndCast(HeaderSection_FileName, anent, ent);
	      RWHeaderSection_RWFileName tool;
	      if (anent.IsNull()) return; 
	      else tool.WriteStep (SW,anent);
	    }

	    break;
	  case 2 : 
	    {
	      DeclareAndCast(HeaderSection_FileDescription, anent, ent);
	      RWHeaderSection_RWFileDescription tool;
	      if (anent.IsNull()) return; 
	      else tool.WriteStep (SW,anent);
	    }

	    break;
	  case 3 : 
	    {
	      DeclareAndCast(HeaderSection_FileSchema, anent, ent);
	      RWHeaderSection_RWFileSchema tool;
	      if (anent.IsNull()) return; 
	      else tool.WriteStep (SW,anent);
	    }

	    break;
	  case 4 : 
	    {
	      DeclareAndCast(StepData_UndefinedEntity,und,ent);
	      if (und.IsNull()) break;
//  Parentheses gerees par StepWriter lui-meme
//   car en recevant le type PasReco, StepWriter ne l'affiche pas,
//   mais il gere les parentheses comme si de rien n etait
	      if (und->IsComplex())   SW.StartComplex();
	      und->WriteParams(SW);
	      if (und->IsComplex())   SW.EndComplex();
	    }

	    break;
	  default : return;
	}
}