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occt/src/OpenGl/OpenGl_Structure.hxx
nds bc73b00672 0031313: Foundation Classes - Dump improvement for classes 
- Provide DumpJson for geometrical, ocaf and visualization classes;
- Change depth parameter of DumpJson (constant is not obligate here)
- Introduce a new macro for transient objects to be called as the first row in DumpJson: OCCT_DUMP_TRANSIENT_CLASS_BEGIN. We need not put the class name in the macro, using get_type_name of Standard_Transient for it.
- change implementation of OCCT_DUMP_CLASS_BEGIN and OCCT_DUMP_TRANSIENT_CLASS_BEGIN. It is not an sentry more and it does not create a new hierarchy level. It appends a new row into the output stream: "className": <className>
- OCCT_DUMP_* does not require semicolon
- class header is included first in source files of TDataStd, TDocStd, TCAFDoc
2020-01-31 17:13:40 +03:00

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// Created on: 2011-08-01
// Created by: Sergey ZERCHANINOV
// Copyright (c) 2011-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef OpenGl_Structure_Header
#define OpenGl_Structure_Header
#include <Graphic3d_CStructure.hxx>
#include <Graphic3d_SequenceOfHClipPlane.hxx>
#include <OpenGl_Aspects.hxx>
#include <OpenGl_GraphicDriver.hxx>
#include <OpenGl_Group.hxx>
#include <OpenGl_Matrix.hxx>
#include <OpenGl_Vec.hxx>
#include <OpenGl_Workspace.hxx>
#include <NCollection_List.hxx>
class OpenGl_GraphicDriver;
DEFINE_STANDARD_HANDLE(OpenGl_Structure, Graphic3d_CStructure)
typedef NCollection_List<const OpenGl_Structure* > OpenGl_ListOfStructure;
//! Implementation of low-level graphic structure.
class OpenGl_Structure : public Graphic3d_CStructure
{
friend class OpenGl_Group;
DEFINE_STANDARD_RTTIEXT(OpenGl_Structure, Graphic3d_CStructure)
public:
//! Auxiliary wrapper to iterate OpenGl_Structure sequence.
typedef SubclassStructIterator<OpenGl_Structure> StructIterator;
//! Auxiliary wrapper to iterate OpenGl_Group sequence.
typedef SubclassGroupIterator<OpenGl_Group> GroupIterator;
public:
//! Create empty structure
Standard_EXPORT OpenGl_Structure (const Handle(Graphic3d_StructureManager)& theManager);
//! Setup structure graphic state
Standard_EXPORT virtual void OnVisibilityChanged() Standard_OVERRIDE;
//! Clear graphic data
Standard_EXPORT virtual void Clear() Standard_OVERRIDE;
//! Connect other structure to this one
Standard_EXPORT virtual void Connect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
//! Disconnect other structure to this one
Standard_EXPORT virtual void Disconnect (Graphic3d_CStructure& theStructure) Standard_OVERRIDE;
//! Synchronize structure transformation
Standard_EXPORT virtual void SetTransformation (const Handle(Geom_Transformation)& theTrsf) Standard_OVERRIDE;
//! Set transformation persistence.
Standard_EXPORT virtual void SetTransformPersistence (const Handle(Graphic3d_TransformPers)& theTrsfPers) Standard_OVERRIDE;
//! Set z layer ID to display the structure in specified layer
Standard_EXPORT virtual void SetZLayer(const Graphic3d_ZLayerId theLayerIndex) Standard_OVERRIDE;
//! Highlights structure according to the given style and updates corresponding class fields
//! (highlight status and style)
Standard_EXPORT virtual void GraphicHighlight (const Handle(Graphic3d_PresentationAttributes)& theStyle) Standard_OVERRIDE;
//! Unighlights structure and updates corresponding class fields (highlight status and style)
Standard_EXPORT virtual void GraphicUnhighlight() Standard_OVERRIDE;
//! Create shadow link to this structure
Standard_EXPORT virtual Handle(Graphic3d_CStructure) ShadowLink (const Handle(Graphic3d_StructureManager)& theManager) const Standard_OVERRIDE;
//! Create new group within this structure
Standard_EXPORT virtual Handle(Graphic3d_Group) NewGroup (const Handle(Graphic3d_Structure)& theStruct) Standard_OVERRIDE;
//! Remove group from this structure
Standard_EXPORT virtual void RemoveGroup (const Handle(Graphic3d_Group)& theGroup) Standard_OVERRIDE;
public:
//! Access graphic driver
OpenGl_GraphicDriver* GlDriver() const
{
return (OpenGl_GraphicDriver* )myGraphicDriver.operator->();
}
Standard_EXPORT void Clear (const Handle(OpenGl_Context)& theGlCtx);
//! Renders the structure.
Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
//! Releases structure resources.
Standard_EXPORT virtual void Release (const Handle(OpenGl_Context)& theGlCtx);
//! This method releases GL resources without actual elements destruction.
//! As result structure could be correctly destroyed layer without GL context
//! (after last window was closed for example).
//!
//! Notice however that reusage of this structure after calling this method is incorrect
//! and will lead to broken visualization due to loosed data.
Standard_EXPORT void ReleaseGlResources (const Handle(OpenGl_Context)& theGlCtx);
//! Returns instanced OpenGL structure.
const OpenGl_Structure* InstancedStructure() const { return myInstancedStructure; }
//! Returns structure modification state (for ray-tracing).
Standard_Size ModificationState() const { return myModificationState; }
//! Resets structure modification state (for ray-tracing).
void ResetModificationState() const { myModificationState = 0; }
//! Is the structure ray-tracable (contains ray-tracable elements)?
Standard_Boolean IsRaytracable() const;
//! Update render transformation matrix.
Standard_EXPORT virtual void updateLayerTransformation() Standard_OVERRIDE;
//! Dumps the content of me into the stream
Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
protected:
Standard_EXPORT virtual ~OpenGl_Structure();
//! Updates ray-tracable status for structure and its parents.
void UpdateStateIfRaytracable (const Standard_Boolean toCheck = Standard_True) const;
//! Renders groups of structure without applying any attributes (i.e. transform, material etc).
//! @param theWorkspace current workspace
//! @param theHasClosed flag will be set to TRUE if structure contains at least one group of closed primitives
Standard_EXPORT void renderGeometry (const Handle(OpenGl_Workspace)& theWorkspace,
bool& theHasClosed) const;
//! Render the bounding box.
Standard_EXPORT void renderBoundingBox(const Handle(OpenGl_Workspace)& theWorkspace) const;
protected:
OpenGl_Structure* myInstancedStructure;
Graphic3d_Mat4 myRenderTrsf; //!< transformation, actually used for rendering (includes Local Origin shift)
mutable Standard_Boolean myIsRaytracable;
mutable Standard_Size myModificationState;
Standard_Boolean myIsMirrored; //!< Used to tell OpenGl to interpret polygons in clockwise order.
};
#endif // OpenGl_Structure_Header
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