mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 21:33:55 +00:00
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
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//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_cont_internal_PointLocatorBase_h
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#define vtk_m_cont_internal_PointLocatorBase_h
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#include <vtkm/cont/vtkm_cont_export.h>
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#include <vtkm/Types.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/ExecutionObjectBase.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace internal
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{
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/// \brief Base class for all `PointLocator` classes.
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///
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/// `PointLocatorBase` uses the curiously recurring template pattern (CRTP). Subclasses
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/// must provide their own type for the template parameter. Subclasses must implement
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/// `Build` and `PrepareForExecution` methods.
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///
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template <typename Derived>
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class VTKM_ALWAYS_EXPORT PointLocatorBase : public vtkm::cont::ExecutionObjectBase
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{
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public:
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vtkm::cont::CoordinateSystem GetCoordinates() const { return this->Coords; }
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void SetCoordinates(const vtkm::cont::CoordinateSystem& coords)
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{
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this->Coords = coords;
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this->SetModified();
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}
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void Update()
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{
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if (this->Modified)
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{
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static_cast<Derived*>(const_cast<PointLocatorBase*>(this))->Build();
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this->Modified = false;
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}
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}
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protected:
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void SetModified() { this->Modified = true; }
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bool GetModified() const { return this->Modified; }
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private:
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vtkm::cont::CoordinateSystem Coords;
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mutable bool Modified = true;
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};
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} // vtkm::cont::internal
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} // vtkm::cont
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} // vtkm
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#endif // vtk_m_cont_internal_PointLocatorBase_h
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