mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-08-14 13:30:48 +03:00
b9280b8b27
Removed unused exception classes OSD_Exception_FLT_DIVIDE_BY_ZERO, OSD_Exception_INT_DIVIDE_BY_ZERO, OSD_Exception_FLT_DENORMAL_OPERAND, OSD_Exception_FLT_INEXACT_RESULT, OSD_Exception_FLT_INVALID_OPERATION, OSD_Exception_FLT_OVERFLOW, OSD_Exception_FLT_STACK_CHECK, OSD_Exception_FLT_UNDERFLOW.
178 lines
7.7 KiB
C++
178 lines
7.7 KiB
C++
// Created on: 2011-08-01
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef OpenGl_Structure_HeaderFile
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#define OpenGl_Structure_HeaderFile
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#include <Graphic3d_CStructure.hxx>
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#include <OpenGl_GraphicDriver.hxx>
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#include <OpenGl_Group.hxx>
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#include <OpenGl_Workspace.hxx>
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#include <NCollection_List.hxx>
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DEFINE_STANDARD_HANDLE(OpenGl_Structure, Graphic3d_CStructure)
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typedef NCollection_List<const OpenGl_Structure* > OpenGl_ListOfStructure;
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//! Implementation of low-level graphic structure.
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class OpenGl_Structure : public Graphic3d_CStructure
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{
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friend class OpenGl_Group;
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DEFINE_STANDARD_RTTIEXT(OpenGl_Structure, Graphic3d_CStructure)
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public:
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//! Auxiliary wrapper to iterate OpenGl_Structure sequence.
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typedef SubclassStructIterator<OpenGl_Structure> StructIterator;
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//! Auxiliary wrapper to iterate OpenGl_Group sequence.
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typedef SubclassGroupIterator<OpenGl_Group> GroupIterator;
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public:
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//! Create empty structure
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Standard_EXPORT OpenGl_Structure (const Handle(Graphic3d_StructureManager)& theManager);
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//! Setup structure graphic state
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Standard_EXPORT virtual void OnVisibilityChanged() Standard_OVERRIDE;
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//! Clear graphic data
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Standard_EXPORT virtual void Clear() Standard_OVERRIDE;
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//! Connect other structure to this one
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Standard_EXPORT virtual void Connect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
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//! Disconnect other structure to this one
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Standard_EXPORT virtual void Disconnect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
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//! Synchronize structure transformation
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Standard_EXPORT virtual void SetTransformation (const Handle(TopLoc_Datum3D)& theTrsf) Standard_OVERRIDE;
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//! Set transformation persistence.
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Standard_EXPORT virtual void SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers) Standard_OVERRIDE;
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//! Set z layer ID to display the structure in specified layer
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Standard_EXPORT virtual void SetZLayer(const Graphic3d_ZLayerId theLayerIndex) Standard_OVERRIDE;
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//! Highlights structure according to the given style and updates corresponding class fields
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//! (highlight status and style)
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Standard_EXPORT virtual void GraphicHighlight (const Handle(Graphic3d_PresentationAttributes)& theStyle) Standard_OVERRIDE;
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//! Unighlights structure and updates corresponding class fields (highlight status and style)
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Standard_EXPORT virtual void GraphicUnhighlight() Standard_OVERRIDE;
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//! Create shadow link to this structure
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Standard_EXPORT virtual Handle(Graphic3d_CStructure) ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const Standard_OVERRIDE;
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//! Create new group within this structure
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Standard_EXPORT virtual Handle(Graphic3d_Group) NewGroup (const Handle(Graphic3d_Structure)& theStruct) Standard_OVERRIDE;
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//! Remove group from this structure
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Standard_EXPORT virtual void RemoveGroup (const Handle(Graphic3d_Group)& theGroup) Standard_OVERRIDE;
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public:
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//! Access graphic driver
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OpenGl_GraphicDriver* GlDriver() const
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{
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return (OpenGl_GraphicDriver* )myGraphicDriver.operator->();
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}
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Standard_EXPORT void Clear (const Handle(OpenGl_Context)& theGlCtx);
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//! Renders the structure.
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Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
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//! Releases structure resources.
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Standard_EXPORT virtual void Release (const Handle(OpenGl_Context)& theGlCtx);
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//! This method releases GL resources without actual elements destruction.
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//! As result structure could be correctly destroyed layer without GL context
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//! (after last window was closed for example).
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//!
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//! Notice however that reusage of this structure after calling this method is incorrect
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//! and will lead to broken visualization due to loosed data.
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Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theGlCtx);
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//! Returns instanced OpenGL structure.
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const OpenGl_Structure* InstancedStructure() const { return myInstancedStructure; }
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//! Returns structure modification state (for ray-tracing).
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Standard_Size ModificationState() const { return myModificationState; }
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//! Resets structure modification state (for ray-tracing).
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void ResetModificationState() const { myModificationState = 0; }
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//! Is the structure ray-tracable (contains ray-tracable elements)?
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Standard_Boolean IsRaytracable() const;
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//! Update render transformation matrix.
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Standard_EXPORT virtual void updateLayerTransformation() Standard_OVERRIDE;
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//! Dumps the content of me into the stream
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Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
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protected:
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Standard_EXPORT virtual ~OpenGl_Structure();
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//! Updates ray-tracable status for structure and its parents.
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void UpdateStateIfRaytracable (const Standard_Boolean toCheck = Standard_True) const;
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//! Renders groups of structure without applying any attributes (i.e. transform, material etc).
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//! @param theWorkspace current workspace
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//! @param theHasClosed flag will be set to TRUE if structure contains at least one group of closed primitives
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Standard_EXPORT void renderGeometry (const Handle(OpenGl_Workspace)& theWorkspace,
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bool& theHasClosed) const;
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//! Render the bounding box.
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Standard_EXPORT void renderBoundingBox(const Handle(OpenGl_Workspace)& theWorkspace) const;
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//! Apply transform persistence into context.
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//! It disables shadows on non-3d objects when toEnable is true and restores otherwise.
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//! @param[in] theCtx current context
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//! @param[in] theTrsfPers transform persistence
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//! @param[in] theIsLocal specifies if transform persistence is defined locally or to entire presentation
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//! @param[out] theOldCastShadows state of the previous cast shadows state
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Standard_EXPORT void applyPersistence (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_TransformPers)& theTrsfPersistence,
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const Standard_Boolean theIsLocal,
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Standard_Boolean& theOldCastShadows) const;
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//! Restore context from transform persistence changes.
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//! @param[in] theCtx current context
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//! @param[in] theTrsfPers transform persistence
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//! @param[in] theIsLocal specifies if transform persistence is defined locally or to entire presentation
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//! @param[in] theOldCastShadows state of the previous cast shadows state
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Standard_EXPORT void revertPersistence (const Handle(OpenGl_Context)& theCtx,
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const Handle(Graphic3d_TransformPers)& theTrsfPersistence,
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const Standard_Boolean theIsLocal,
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const Standard_Boolean theOldCastShadows) const;
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protected:
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OpenGl_Structure* myInstancedStructure;
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Graphic3d_Mat4 myRenderTrsf; //!< transformation, actually used for rendering (includes Local Origin shift)
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mutable Standard_Boolean myIsRaytracable;
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mutable Standard_Size myModificationState;
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Standard_Boolean myIsMirrored; //!< Used to tell OpenGl to interpret polygons in clockwise order.
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};
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#endif // OpenGl_Structure_Header
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