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b311480e | 1 | // Created on: 2011-08-01 |
2 | // Created by: Sergey ZERCHANINOV | |
973c2be1 | 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 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 | |
973c2be1 | 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. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
2166f0fa SK |
16 | #ifndef OpenGl_Structure_Header |
17 | #define OpenGl_Structure_Header | |
18 | ||
63bcc448 | 19 | #include <Graphic3d_CStructure.hxx> |
20 | #include <Graphic3d_SequenceOfHClipPlane.hxx> | |
2166f0fa SK |
21 | |
22 | #include <OpenGl_AspectLine.hxx> | |
23 | #include <OpenGl_AspectFace.hxx> | |
24 | #include <OpenGl_AspectMarker.hxx> | |
25 | #include <OpenGl_AspectText.hxx> | |
26 | ||
27 | #include <OpenGl_Group.hxx> | |
28 | #include <OpenGl_Matrix.hxx> | |
b7cd4ba7 | 29 | #include <OpenGl_Vec.hxx> |
30 | #include <OpenGl_Workspace.hxx> | |
2166f0fa | 31 | |
63bcc448 | 32 | #include <NCollection_List.hxx> |
33 | #include <InterfaceGraphic_Graphic3d.hxx> | |
4269bd1b | 34 | |
bf75be98 | 35 | class OpenGl_Structure; |
63bcc448 | 36 | class OpenGl_GraphicDriver; |
bf75be98 | 37 | |
38 | typedef NCollection_List<const OpenGl_Structure* > OpenGl_ListOfStructure; | |
2166f0fa | 39 | |
b64d84be | 40 | //! Implementation of low-level graphic structure. |
63bcc448 | 41 | class OpenGl_Structure : public Graphic3d_CStructure |
2166f0fa | 42 | { |
e276548b | 43 | friend class OpenGl_Group; |
5e27df78 | 44 | |
b64d84be | 45 | public: |
46 | ||
47 | //! Auxiliary wrapper to iterate OpenGl_Group sequence. | |
48 | class GroupIterator | |
49 | { | |
50 | ||
51 | public: | |
52 | GroupIterator (const Graphic3d_SequenceOfGroup& theGroups) : myIter (theGroups) {} | |
53 | Standard_Boolean More() const { return myIter.More(); } | |
54 | void Next() { myIter.Next(); } | |
55 | const OpenGl_Group* Value() const { return (const OpenGl_Group* )(myIter.Value().operator->()); } | |
56 | OpenGl_Group* ChangeValue() { return (OpenGl_Group* )(myIter.ChangeValue().operator->()); } | |
57 | ||
58 | private: | |
59 | Graphic3d_SequenceOfGroup::Iterator myIter; | |
60 | ||
61 | }; | |
62 | ||
5e27df78 | 63 | public: |
64 | ||
63bcc448 | 65 | //! Create empty structure |
b64d84be | 66 | Standard_EXPORT OpenGl_Structure (const Handle(Graphic3d_StructureManager)& theManager); |
63bcc448 | 67 | |
68 | //! Setup structure graphic state | |
a1954302 | 69 | Standard_EXPORT virtual void OnVisibilityChanged() Standard_OVERRIDE; |
63bcc448 | 70 | |
71 | //! Clear graphic data | |
b64d84be | 72 | Standard_EXPORT virtual void Clear(); |
63bcc448 | 73 | |
74 | //! Connect other structure to this one | |
b64d84be | 75 | Standard_EXPORT virtual void Connect (Graphic3d_CStructure& theStructure); |
63bcc448 | 76 | |
77 | //! Disconnect other structure to this one | |
b64d84be | 78 | Standard_EXPORT virtual void Disconnect (Graphic3d_CStructure& theStructure); |
63bcc448 | 79 | |
80 | //! Synchronize structure aspects | |
b64d84be | 81 | Standard_EXPORT virtual void UpdateAspects(); |
2166f0fa | 82 | |
63bcc448 | 83 | //! Synchronize structure transformation |
b64d84be | 84 | Standard_EXPORT virtual void UpdateTransformation(); |
63bcc448 | 85 | |
86 | //! Highlight entire structure with color | |
b64d84be | 87 | Standard_EXPORT virtual void HighlightWithColor (const Graphic3d_Vec3& theColor, |
88 | const Standard_Boolean theToCreate); | |
63bcc448 | 89 | |
90 | //! Highlight structure using boundary box | |
b64d84be | 91 | Standard_EXPORT virtual void HighlightWithBndBox (const Handle(Graphic3d_Structure)& theStruct, |
92 | const Standard_Boolean theToCreate); | |
63bcc448 | 93 | |
679ecdee | 94 | //! Create shadow link to this structure |
b64d84be | 95 | Standard_EXPORT virtual Handle(Graphic3d_CStructure) ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const; |
96 | ||
97 | //! Create new group within this structure | |
98 | Standard_EXPORT virtual Handle(Graphic3d_Group) NewGroup (const Handle(Graphic3d_Structure)& theStruct); | |
99 | ||
100 | //! Remove group from this structure | |
101 | Standard_EXPORT virtual void RemoveGroup (const Handle(Graphic3d_Group)& theGroup); | |
679ecdee | 102 | |
63bcc448 | 103 | public: |
104 | ||
b64d84be | 105 | //! @return graphic groups |
106 | virtual const Graphic3d_SequenceOfGroup& DrawGroups() const | |
107 | { | |
108 | return myGroups; | |
109 | } | |
110 | ||
63bcc448 | 111 | //! Access graphic driver |
112 | OpenGl_GraphicDriver* GlDriver() const | |
113 | { | |
114 | return (OpenGl_GraphicDriver* )myGraphicDriver.operator->(); | |
115 | } | |
2166f0fa SK |
116 | |
117 | void SetTransformPersistence (const CALL_DEF_TRANSFORM_PERSISTENCE &ATransPers); | |
118 | ||
fd4a6963 | 119 | void SetAspectLine (const CALL_DEF_CONTEXTLINE &theAspect); |
120 | void SetAspectFace (const CALL_DEF_CONTEXTFILLAREA& theAspect); | |
121 | void SetAspectMarker (const CALL_DEF_CONTEXTMARKER& theAspect); | |
122 | void SetAspectText (const CALL_DEF_CONTEXTTEXT &theAspect); | |
2166f0fa | 123 | |
b64d84be | 124 | void clearHighlightBox (const Handle(OpenGl_Context)& theGlCtx); |
5e27df78 | 125 | |
b64d84be | 126 | void setHighlightColor (const Handle(OpenGl_Context)& theGlCtx, |
63bcc448 | 127 | const Graphic3d_Vec3& theColor); |
2166f0fa | 128 | |
b64d84be | 129 | void clearHighlightColor (const Handle(OpenGl_Context)& theGlCtx); |
2166f0fa | 130 | |
b64d84be | 131 | Standard_EXPORT void Clear (const Handle(OpenGl_Context)& theGlCtx); |
2166f0fa | 132 | |
0717ddc1 | 133 | //! Renders groups of structure without applying any attributes (i.e. transform, material etc). |
134 | virtual void RenderGeometry (const Handle(OpenGl_Workspace)& theWorkspace) const; | |
135 | ||
136 | //! Renders the structure. | |
5e27df78 | 137 | virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const; |
0717ddc1 | 138 | |
139 | //! Releases structure resources. | |
140 | virtual void Release (const Handle(OpenGl_Context)& theGlCtx); | |
5e27df78 | 141 | |
b7cd4ba7 | 142 | //! Marks structure as not overlapping view volume (as it is by default). |
143 | void ResetCullingStatus() const | |
144 | { | |
145 | if (!IsAlwaysRendered()) | |
146 | { | |
147 | myIsCulled = Standard_True; | |
148 | } | |
149 | } | |
150 | ||
151 | //! Marks structure as overlapping the current view volume one. | |
152 | //! The method is called during traverse of BVH tree. | |
153 | void MarkAsNotCulled() const { myIsCulled = Standard_False; } | |
154 | ||
155 | //! Returns Standard_False if the structure hits the current view volume, otherwise | |
156 | //! returns Standard_True. The default value for all structures before each traverse | |
157 | //! of BVH tree is Standard_True. | |
158 | Standard_Boolean IsCulled() const { return myIsCulled; } | |
159 | ||
160 | //! Checks if the structure should be included into BVH tree or not. | |
161 | const Standard_Boolean IsAlwaysRendered() const | |
162 | { | |
163 | return IsInfinite | |
164 | || IsForHighlight | |
165 | || IsMutable | |
166 | || Is2dText | |
167 | || TransformPersistence.Flag != 0; | |
168 | } | |
169 | ||
dd8a4ce9 | 170 | //! This method releases GL resources without actual elements destruction. |
e276548b | 171 | //! As result structure could be correctly destroyed layer without GL context |
dd8a4ce9 | 172 | //! (after last window was closed for example). |
173 | //! | |
174 | //! Notice however that reusage of this structure after calling this method is incorrect | |
175 | //! and will lead to broken visualization due to loosed data. | |
b64d84be | 176 | Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theGlCtx); |
e276548b | 177 | |
178 | //! Returns list of connected OpenGL structures. | |
179 | const OpenGl_ListOfStructure& ConnectedStructures() const { return myConnected; } | |
180 | ||
181 | //! Returns OpenGL face aspect. | |
182 | const OpenGl_AspectFace* AspectFace() const { return myAspectFace; } | |
183 | ||
184 | //! Returns OpenGL transformation matrix. | |
185 | const OpenGl_Matrix* Transformation() const { return myTransformation; } | |
186 | ||
187 | //! Returns OpenGL persistent translation. | |
188 | const TEL_TRANSFORM_PERSISTENCE* PersistentTranslation() const { return myTransPers; } | |
189 | ||
e276548b | 190 | //! Returns structure modification state (for ray-tracing). |
191 | Standard_Size ModificationState() const { return myModificationState; } | |
192 | ||
193 | //! Resets structure modification state (for ray-tracing) | |
194 | void ResetModificationState() const { myModificationState = 0; } | |
195 | ||
196 | //! Is the structure ray-tracable (contains ray-tracable elements)? | |
197 | Standard_Boolean IsRaytracable() const { return myIsRaytracable; } | |
198 | ||
5e27df78 | 199 | protected: |
200 | ||
b64d84be | 201 | Standard_EXPORT virtual ~OpenGl_Structure(); |
5e27df78 | 202 | |
e276548b | 203 | //! Registers ancestor connected structure (for updating ray-tracing state). |
204 | void RegisterAncestorStructure (const OpenGl_Structure* theStructure) const; | |
205 | ||
206 | //! Unregisters ancestor connected structure (for updating ray-tracing state). | |
207 | void UnregisterAncestorStructure (const OpenGl_Structure* theStructure) const; | |
208 | ||
d5af8626 | 209 | //! Unregisters structure from ancestor structure (for updating ray-tracing state). |
210 | void UnregisterFromAncestorStructure() const; | |
211 | ||
e276548b | 212 | //! Updates modification state for structure and its parents. |
213 | void UpdateStateWithAncestorStructures() const; | |
214 | ||
215 | //! Updates ray-tracable status for structure and its parents. | |
216 | void UpdateRaytracableWithAncestorStructures() const; | |
217 | ||
218 | //! Sets ray-tracable status for structure and its parents. | |
219 | void SetRaytracableWithAncestorStructures() const; | |
220 | ||
5e27df78 | 221 | protected: |
2166f0fa | 222 | |
5e27df78 | 223 | OpenGl_Matrix* myTransformation; |
224 | TEL_TRANSFORM_PERSISTENCE* myTransPers; | |
5e27df78 | 225 | OpenGl_AspectLine* myAspectLine; |
226 | OpenGl_AspectFace* myAspectFace; | |
227 | OpenGl_AspectMarker* myAspectMarker; | |
228 | OpenGl_AspectText* myAspectText; | |
63bcc448 | 229 | |
b64d84be | 230 | Handle(OpenGl_Group) myHighlightBox; |
5e27df78 | 231 | TEL_COLOUR* myHighlightColor; |
63bcc448 | 232 | |
51b10cd4 | 233 | OpenGl_ListOfStructure myConnected; |
2166f0fa | 234 | |
e276548b | 235 | mutable OpenGl_ListOfStructure myAncestorStructures; |
236 | mutable Standard_Boolean myIsRaytracable; | |
237 | mutable Standard_Size myModificationState; | |
e276548b | 238 | |
b7cd4ba7 | 239 | mutable Standard_Boolean myIsCulled; //!< A status specifying is structure needs to be rendered after BVH tree traverse. |
240 | ||
7d9e854b | 241 | Standard_Boolean myIsMirrored; //!< Used to tell OpenGl to interpret polygons in clockwise order. |
242 | ||
5e27df78 | 243 | public: |
2166f0fa | 244 | |
63bcc448 | 245 | DEFINE_STANDARD_RTTI(OpenGl_Structure) // Type definition |
5e27df78 | 246 | |
2166f0fa SK |
247 | }; |
248 | ||
63bcc448 | 249 | DEFINE_STANDARD_HANDLE(OpenGl_Structure, Graphic3d_CStructure) |
250 | ||
251 | #endif // OpenGl_Structure_Header |