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1 | // Created on: 2013-08-15 |
2 | // Created by: Anton POLETAEV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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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 |
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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. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
16 | #ifndef _OpenGl_CappingPlaneResource_H__ |
17 | #define _OpenGl_CappingPlaneResource_H__ |
18 | |
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19 | #include <OpenGl_PrimitiveArray.hxx> |
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20 | #include <OpenGl_Resource.hxx> |
21 | #include <OpenGl_AspectFace.hxx> |
22 | #include <OpenGl_Matrix.hxx> |
23 | #include <Graphic3d_ClipPlane.hxx> |
24 | |
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25 | class OpenGl_CappingPlaneResource; |
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26 | DEFINE_STANDARD_HANDLE (OpenGl_CappingPlaneResource, OpenGl_Resource) |
27 | |
28 | //! Container of graphical resources for rendering capping plane |
29 | //! associated to graphical clipping plane. |
30 | //! This resource holds data necessary for OpenGl_CappingAlgo. |
31 | //! This object is implemented as OpenGl resource for the following reasons: |
32 | //! - one instance should be shared between contexts. |
33 | //! - instance associated to Graphic3d_ClipPlane data by id. |
34 | //! - should created and released within context (owns OpenGl elements and resources). |
35 | class OpenGl_CappingPlaneResource : public OpenGl_Resource |
36 | { |
37 | public: |
38 | |
39 | //! Constructor. |
40 | //! Create capping plane presentation associated to clipping plane data. |
41 | //! @param thePlane [in] the plane data. |
42 | Standard_EXPORT OpenGl_CappingPlaneResource (const Handle(Graphic3d_ClipPlane)& thePlane); |
43 | |
44 | //! Destroy object. |
45 | Standard_EXPORT virtual ~OpenGl_CappingPlaneResource(); |
46 | |
47 | //! Update resource data in the passed context. |
48 | //! @param theContext [in] the context. |
49 | Standard_EXPORT void Update (const Handle(OpenGl_Context)& theContext); |
50 | |
51 | //! Release associated OpenGl resources. |
52 | //! @param theContext [in] the resource context. |
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53 | Standard_EXPORT virtual void Release (OpenGl_Context* theContext) Standard_OVERRIDE; |
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54 | |
55 | //! @return aspect face for rendering capping surface. |
56 | inline const OpenGl_AspectFace* AspectFace() const { return myAspect; } |
57 | |
58 | //! @return evaluated orientation matrix to transform infinite plane. |
59 | inline const OpenGl_Matrix* Orientation() const { return &myOrientation; } |
60 | |
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61 | //! @return primitive array of vertices to render infinite plane. |
62 | inline const OpenGl_PrimitiveArray& Primitives() const { return myPrimitives; } |
63 | |
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64 | private: |
65 | |
66 | //! Update precomputed plane orientation matrix. |
67 | void UpdateTransform(); |
68 | |
69 | //! Update resources. |
70 | //! @param theContext [in] the context. |
71 | void UpdateAspect (const Handle(OpenGl_Context)& theContext); |
72 | |
73 | private: |
74 | |
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75 | OpenGl_PrimitiveArray myPrimitives; //!< vertices and texture coordinates for rendering |
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76 | OpenGl_Matrix myOrientation; //!< plane transformation matrix. |
77 | OpenGl_AspectFace* myAspect; //!< capping face aspect. |
78 | Handle(Graphic3d_ClipPlane) myPlaneRoot; //!< parent clipping plane structure. |
79 | unsigned int myEquationMod; //!< modification counter for plane equation. |
80 | unsigned int myAspectMod; //!< modification counter for aspect. |
81 | |
82 | public: |
83 | |
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84 | DEFINE_STANDARD_RTTIEXT(OpenGl_CappingPlaneResource,OpenGl_Resource) // Type definition |
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85 | |
86 | }; |
87 | |
88 | #endif |