// Created by: Eugeny MALTCHIKOV
// Copyright (c) 2017 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.

#ifndef _BOPAlgo_Splitter_HeaderFile
#define _BOPAlgo_Splitter_HeaderFile

#include "Standard.hxx"
#include "Standard_DefineAlloc.hxx"
#include "Standard_Handle.hxx"

#include "BOPAlgo_ToolsProvider.hxx"

//! The **Splitter algorithm** is the algorithm for splitting a group of
//! arbitrary shapes by the other group of arbitrary shapes.
//! The arguments of the operation are divided on two groups:
//! *Objects* - shapes that will be split;
//! *Tools*   - shapes by which the *Objects* will be split.
//! The result of the operation contains only the split parts
//! of the shapes from the group of *Objects*.
//! The split parts of the shapes from the group of *Tools* are excluded
//! from the result.
//! The shapes can be split by the other shapes from the same group
//! (in case these shapes are interfering).
//!
//! The class is a General Fuse based algorithm. Thus, all options
//! of the General Fuse algorithm such as Fuzzy mode, safe processing mode,
//! parallel processing mode, gluing mode and history support are also
//! available in this algorithm.
//! There is no requirement on the existence of the *Tools* shapes.
//! And if there are no *Tools* shapes, the result of the splitting
//! operation will be equivalent to the General Fuse result.
//!
//! The implementation of the algorithm is minimal - only the methods
//! CheckData() and Perform() have been overridden.
//! The method BOPAlgo_Builder::BuildResult(), which adds the split parts of the arguments
//! into result, does not have to be overridden, because its native implementation
//! performs the necessary actions for the Splitter algorithm - it adds
//! the split parts of only Objects into result, avoiding the split parts of Tools.
class BOPAlgo_Splitter : public BOPAlgo_ToolsProvider
{
public:
  DEFINE_STANDARD_ALLOC

  //! Empty constructor
  Standard_EXPORT BOPAlgo_Splitter();
  Standard_EXPORT ~BOPAlgo_Splitter() override;

  Standard_EXPORT BOPAlgo_Splitter(const occ::handle<NCollection_BaseAllocator>& theAllocator);

  //! Performs the operation
  Standard_EXPORT void Perform(
    const Message_ProgressRange& theRange = Message_ProgressRange()) override;

protected:
  //! Checks the input data
  Standard_EXPORT void CheckData() override;

  //! Adds images of the argument shapes into result.
  //! When called the for the last time (for compound) it rebuilds the result
  //! shape to avoid multiple enclosure into compounds.
  Standard_EXPORT void BuildResult(const TopAbs_ShapeEnum theType) override;
};

#endif // _BOPAlgo_Splitter_HeaderFile