1 // Copyright (c) 1995-1999 Matra Datavision
2 // Copyright (c) 1999-2014 OPEN CASCADE SAS
4 // This file is part of Open CASCADE Technology software library.
6 // This library is free software; you can redistribute it and/or modify it under
7 // the terms of the GNU Lesser General Public License version 2.1 as published
8 // by the Free Software Foundation, with special exception defined in the file
9 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10 // distribution for complete text of the license and disclaimer of any warranty.
12 // Alternatively, this file may be used under the terms of Open CASCADE
13 // commercial license or contractual agreement.
15 #ifndef _Graphic3d_CStructure_HeaderFile
16 #define _Graphic3d_CStructure_HeaderFile
18 #include <Graphic3d_BndBox4f.hxx>
19 #include <Graphic3d_Group.hxx>
20 #include <Graphic3d_SequenceOfGroup.hxx>
21 #include <Graphic3d_SequenceOfHClipPlane.hxx>
22 #include <Graphic3d_TypeOfComposition.hxx>
23 #include <Graphic3d_ViewAffinity.hxx>
24 #include <Graphic3d_Vec3.hxx>
25 #include <Graphic3d_ZLayerId.hxx>
27 class Graphic3d_GraphicDriver;
28 class Graphic3d_StructureManager;
30 //! Low-level graphic structure interface
31 class Graphic3d_CStructure : public Standard_Transient
36 //! @return graphic driver created this structure
37 const Handle(Graphic3d_GraphicDriver)& GraphicDriver() const
39 return myGraphicDriver;
42 //! @return graphic groups
43 const Graphic3d_SequenceOfGroup& Groups() const
48 //! @return associated clip planes
49 const Graphic3d_SequenceOfHClipPlane& ClipPlanes() const
54 //! Pass clip planes to the associated graphic driver structure
55 void SetClipPlanes (const Graphic3d_SequenceOfHClipPlane& thePlanes) { myClipPlanes = thePlanes; }
57 //! @return bounding box of this presentation
58 const Graphic3d_BndBox4f& BoundingBox() const
63 //! @return bounding box of this presentation
64 //! without transformation matrix applied
65 Graphic3d_BndBox4f& ChangeBoundingBox()
70 //! Return structure visibility flag
71 bool IsVisible() const { return visible != 0; }
73 //! Set z layer ID to display the structure in specified layer
74 void SetZLayer (const Graphic3d_ZLayerId theLayerIndex) { myZLayer = theLayerIndex; }
77 Graphic3d_ZLayerId ZLayer() const { return myZLayer; }
81 //! Update structure visibility state
82 virtual void OnVisibilityChanged() = 0;
84 //! Clear graphic data
85 virtual void Clear() = 0;
87 //! Connect other structure to this one
88 virtual void Connect (Graphic3d_CStructure& theStructure) = 0;
90 //! Disconnect other structure to this one
91 virtual void Disconnect (Graphic3d_CStructure& theStructure) = 0;
93 //! Synchronize structure aspects
94 virtual void UpdateAspects() = 0;
96 //! Synchronize structure transformation
97 virtual void UpdateTransformation() = 0;
99 //! Highlight entire structure with color
100 virtual void HighlightWithColor (const Graphic3d_Vec3& theColor,
101 const Standard_Boolean theToCreate) = 0;
103 //! Highlight structure using boundary box
104 virtual void HighlightWithBndBox (const Handle(Graphic3d_Structure)& theStruct,
105 const Standard_Boolean theToCreate) = 0;
107 //! Create shadow link to this structure
108 virtual Handle(Graphic3d_CStructure) ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const = 0;
110 //! Create new group within this structure
111 virtual Handle(Graphic3d_Group) NewGroup (const Handle(Graphic3d_Structure)& theStruct) = 0;
113 //! Remove group from this structure
114 virtual void RemoveGroup (const Handle(Graphic3d_Group)& theGroup) = 0;
119 Graphic3d_ZLayerId myZLayer;
121 int PreviousPriority;
123 CALL_DEF_CONTEXTLINE ContextLine;
124 CALL_DEF_CONTEXTFILLAREA ContextFillArea;
125 CALL_DEF_CONTEXTMARKER ContextMarker;
126 CALL_DEF_CONTEXTTEXT ContextText;
128 CALL_DEF_COLOR HighlightColor;
130 float Transformation[4][4];
131 Graphic3d_TypeOfComposition Composition;
135 Handle(Graphic3d_ViewAffinity) ViewAffinity; //!< view affinity mask
137 unsigned IsInfinite : 1;
138 unsigned stick : 1; //!< displaying state - should be set when structure has been added to scene graph (but can be in hidden state)
139 unsigned highlight : 1;
140 unsigned visible : 1; //!< visibility flag - can be used to suppress structure while leaving it in the scene graph
141 unsigned HLRValidation : 1;
142 unsigned IsForHighlight : 1;
143 unsigned IsMutable : 1;
144 unsigned Is2dText : 1;
146 CALL_DEF_TRANSFORM_PERSISTENCE TransformPersistence;
150 //! Create empty structure.
151 Standard_EXPORT Graphic3d_CStructure (const Handle(Graphic3d_StructureManager)& theManager);
155 Handle(Graphic3d_GraphicDriver) myGraphicDriver;
156 Graphic3d_SequenceOfGroup myGroups;
157 Graphic3d_BndBox4f myBndBox;
158 Graphic3d_SequenceOfHClipPlane myClipPlanes;
162 DEFINE_STANDARD_RTTI(Graphic3d_CStructure, Standard_Transient) // Type definition
166 DEFINE_STANDARD_HANDLE (Graphic3d_CStructure, Standard_Transient)
168 #endif // _Graphic3d_CStructure_HeaderFile