0022651: Impossible to build OCC as static library due to using Standard_EXPORT inste...
[occt.git] / src / IVtkTools / IVtkTools_ShapeDataSource.hxx
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913a4c4a 1// Created on: 2011-10-14
2// Created by: Roman KOZLOV
3// Copyright (c) 2011-2014 OPEN CASCADE SAS
4//
5// This file is part of Open CASCADE Technology software library.
6//
7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
12//
13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
15
16#ifndef __IVTKTOOLS_SHAPEDATASOURCE_H__
17#define __IVTKTOOLS_SHAPEDATASOURCE_H__
18
19#include <IVtkTools.hxx>
20#include <IVtkOCC_Shape.hxx>
21#include <IVtkVTK_ShapeData.hxx>
913a4c4a 22#include <vtkPolyDataAlgorithm.h>
913a4c4a 23
24class vtkIdTypeArray;
25class vtkPolyData;
26
896faa72 27#ifdef _MSC_VER
28#pragma warning(push)
29#pragma warning(disable: 4251) // avoid warning C4251: "class needs to have dll-interface..."
30#endif
31
913a4c4a 32//! @class IVtkTools_ShapeDataSource.
33//! @brief VTK data source for OCC shapes polygonal data.
68df8478 34class Standard_EXPORT IVtkTools_ShapeDataSource : public vtkPolyDataAlgorithm
913a4c4a 35{
36public:
37
68858c7d 38 vtkTypeMacro(IVtkTools_ShapeDataSource, vtkPolyDataAlgorithm)
39
913a4c4a 40 static IVtkTools_ShapeDataSource* New();
41
42
43public: //! @name Initialization
44
45 //! Set the source OCCT shape.
46 //! @param theOccShape [in] OCCT shape wrapper.
47 void SetShape(const IVtkOCC_Shape::Handle& theOccShape);
48
49 //! Get the source OCCT shape.
50 //! @return occShape OCCT shape wrapper.
51 IVtkOCC_Shape::Handle GetShape();
52 inline void FastTransformModeOn() { myIsFastTransformMode = true; }
53 inline void FastTransformModeOff() { myIsFastTransformMode = false; }
54
55public: //! @name Data accessors
56
57 //! Returns ID of the shape used as a topological input for this data source.
58 //! @return requested ID.
59 IVtk_IdType GetId() const;
60
61 //! Checks if the internal OccShape pointer is the same the argument.
62 //! @param [in] shape OccShape pointer to be checked.
63 //! @return true if the two OccShape instances are the same, and false otherwise.
64 Standard_Boolean Contains (const IVtkOCC_Shape::Handle& theOccShape) const;
65
66 //! Access to the shape's sub-shape ids array
67 //! @returns the array cast to vtkIdTypeArray
68 vtkSmartPointer<vtkIdTypeArray> SubShapeIDs();
69
70protected: //! @name Interface to override
71
72 //! This is called by the superclass.
73 //! This is the method you should override if you use this class as ancestor.
74 //! Build output polygonal data set from the shape wrapper.
75 //! @param theRequest [in] information about data object.
76 //! In current implementation it is ignored.
77 //! @param theInputVector [in] the input data. As adata source is the start
78 //! stage of the VTK pipeline, theInputVector is empty and not used (no input port).
79 //! @param theOutputVector [in] the pointer to output data, that is filled in this method.
80 virtual int RequestData(vtkInformation* theRequest,
81 vtkInformationVector** theInputVector,
82 vtkInformationVector* theOutputVector);
83
84protected: //! @name Internals
85
86 //! Transforms the passed polygonal data by the given OCCT transformation
87 //! matrix.
88 //! @param theSource [in] source polygonal data to transform.
89 //! @param theTrsf [in] transformation to apply.
90 //! @return resulting polygonal data (transformed copy of source).
91 vtkSmartPointer<vtkPolyData> transform (vtkPolyData* theSource, const gp_Trsf& theTrsf) const;
92
93protected:
94
95 IVtkTools_ShapeDataSource();
a2f76b15 96 virtual ~IVtkTools_ShapeDataSource();
913a4c4a 97
98private:
99
100 IVtkTools_ShapeDataSource (const IVtkTools_ShapeDataSource&);
101 IVtkTools_ShapeDataSource& operator= (const IVtkTools_ShapeDataSource&);
102
a7cc4fdd 103protected:
913a4c4a 104
105 IVtkOCC_Shape::Handle myOccShape; //!< Shape wrapper used as an input.
106 IVtkVTK_ShapeData::Handle myPolyData; //!< Polygonal representation of shape.
107
108 //! Indicates whether light-weighted processing for transformed shapes is
109 //! enabled. If so, data source does not re-compute the discrete model for
110 //! the input topological shape. It rather uses the already existing one
111 //! and applies the necessary transformation to it.
112 Standard_Boolean myIsFastTransformMode;
113
114 //! Internal flag indicating that the current working shape is just a
115 //! transformed copy of the previously processed one. This flag is used in
116 //! a couple with "fast transformation" mode flag.
117 Standard_Boolean myIsTransformOnly;
118
119};
120
896faa72 121#ifdef _MSC_VER
122#pragma warning(pop)
123#endif
124
913a4c4a 125#endif // __IVTKTOOLS_SHAPEDATA_H__