Graphic3d_GraphicDriver Class Reference

This class allows the definition of a graphic driver for 3d interface (currently only OpenGl driver is used). More...

#include <Graphic3d_GraphicDriver.hxx>

Inheritance diagram for Graphic3d_GraphicDriver:

Public Member Functions
virtual Standard_Integer	InquireLimit (const Graphic3d_TypeOfLimit theType) const =0
	Request limit of graphic resource of specific type. More...
Standard_Integer	InquireLightLimit () const
	Request maximum number of active light sources supported by driver and hardware. More...
Standard_Integer	InquirePlaneLimit () const
	Request maximum number of active clipping planes supported by driver and hardware. More...
Standard_Integer	InquireViewLimit () const
	Request maximum number of views supported by driver. More...
virtual Handle< Graphic3d_CStructure >	CreateStructure (const Handle< Graphic3d_StructureManager > &theManager)=0
	Creates new empty graphic structure. More...
virtual void	RemoveStructure (Handle< Graphic3d_CStructure > &theCStructure)=0
	Removes structure from graphic driver and releases its resources. More...
virtual Handle< Graphic3d_CView >	CreateView (const Handle< Graphic3d_StructureManager > &theMgr)=0
	Creates new view for this graphic driver. More...
virtual void	RemoveView (const Handle< Graphic3d_CView > &theView)=0
	Removes view from graphic driver and releases its resources. More...
virtual void	EnableVBO (const Standard_Boolean status)=0
	enables/disables usage of OpenGL vertex buffer arrays while drawing primitiev arrays More...
virtual Standard_Boolean	MemoryInfo (Standard_Size &theFreeBytes, TCollection_AsciiString &theInfo) const =0
	Returns information about GPU memory usage. More...
virtual Standard_ShortReal	DefaultTextHeight () const =0
virtual void	TextSize (const Handle< Graphic3d_CView > &theView, const Standard_CString theText, const Standard_ShortReal theHeight, Standard_ShortReal &theWidth, Standard_ShortReal &theAscent, Standard_ShortReal &theDescent) const =0
	Computes text width. More...
virtual void	AddZLayer (const Graphic3d_ZLayerId theLayerId)=0
	Add a new top-level z layer with ID <theLayerId> for the view. Z layers allow drawing structures in higher layers in foreground of structures in lower layers. To add a structure to desired layer on display it is necessary to set the layer ID for the structure. More...
virtual void	RemoveZLayer (const Graphic3d_ZLayerId theLayerId)=0
	Removes Z layer. All structures displayed at the moment in layer will be displayed in default layer (the bottom-level z layer). By default, there are always default bottom-level layer that can't be removed. The passed theLayerId should be not less than 0 (reserved for default layers that can not be removed). More...
virtual void	ZLayers (TColStd_SequenceOfInteger &theLayerSeq) const =0
	Returns list of Z layers defined for the graphical driver. More...
virtual void	SetZLayerSettings (const Graphic3d_ZLayerId theLayerId, const Graphic3d_ZLayerSettings &theSettings)=0
	Sets the settings for a single Z layer. More...
virtual const Graphic3d_ZLayerSettings &	ZLayerSettings (const Graphic3d_ZLayerId theLayerId) const =0
	Returns the settings of a single Z layer. More...
virtual Standard_Boolean	ViewExists (const Handle< Aspect_Window > &theWindow, Handle< Graphic3d_CView > &theView)=0
	Returns view associated with the window if it is exists and is activated. Returns Standard_True if the view associated to the window exists. More...
const Handle< Aspect_DisplayConnection > &	GetDisplayConnection () const
	returns Handle to display connection More...
Standard_Integer	NewIdentification ()
	Returns a new identification number for a new structure. More...
void	RemoveIdentification (const Standard_Integer theId)
	Frees the identifier of a structure. More...
Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...
	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...
Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...
virtual	~Standard_Transient ()
	Destructor must be virtual. More...
virtual void	Delete () const
	Memory deallocator for transient classes. More...
virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object. More...
Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type. More...
Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...
Standard_Boolean	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...
Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...
void	IncrementRefCounter () const
	Increments the reference counter of this object. More...
Standard_Integer	DecrementRefCounter () const
	Decrements the reference counter of this object; returns the decremented value. More...

Protected Member Functions
	Graphic3d_GraphicDriver (const Handle< Aspect_DisplayConnection > &theDisp)
	Initializes the Driver. More...

Protected Attributes
Handle< Aspect_DisplayConnection >	myDisplayConnection
Aspect_GenId	myStructGenId

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object. More...
Static Public Member Functions inherited from Standard_Transient
static const char *	get_type_name ()
	Returns a type descriptor about this object. More...
static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class. More...

Detailed Description

This class allows the definition of a graphic driver for 3d interface (currently only OpenGl driver is used).

Constructor & Destructor Documentation

Graphic3d_GraphicDriver()

Graphic3d_GraphicDriver::Graphic3d_GraphicDriver ( const Handle< Aspect_DisplayConnection > &  theDisp )

protected

Initializes the Driver.

Member Function Documentation

AddZLayer()

virtual void Graphic3d_GraphicDriver::AddZLayer ( const Graphic3d_ZLayerId  theLayerId )

pure virtual

Add a new top-level z layer with ID <theLayerId> for the view. Z layers allow drawing structures in higher layers in foreground of structures in lower layers. To add a structure to desired layer on display it is necessary to set the layer ID for the structure.

Implemented in OpenGl_GraphicDriver.

CreateStructure()

virtual Handle< Graphic3d_CStructure > Graphic3d_GraphicDriver::CreateStructure ( const Handle< Graphic3d_StructureManager > &  theManager )

pure virtual

Creates new empty graphic structure.

Implemented in OpenGl_GraphicDriver.

CreateView()

virtual Handle< Graphic3d_CView > Graphic3d_GraphicDriver::CreateView ( const Handle< Graphic3d_StructureManager > &  theMgr )

pure virtual

Creates new view for this graphic driver.

Implemented in OpenGl_GraphicDriver.

DefaultTextHeight()

virtual Standard_ShortReal Graphic3d_GraphicDriver::DefaultTextHeight ( ) const

pure virtual

Implemented in OpenGl_GraphicDriver.

EnableVBO()

virtual void Graphic3d_GraphicDriver::EnableVBO ( const Standard_Boolean  status )

pure virtual

enables/disables usage of OpenGL vertex buffer arrays while drawing primitiev arrays

Implemented in OpenGl_GraphicDriver.

GetDisplayConnection()

const Handle< Aspect_DisplayConnection >& Graphic3d_GraphicDriver::GetDisplayConnection

(

)

const

returns Handle to display connection

InquireLightLimit()

Standard_Integer Graphic3d_GraphicDriver::InquireLightLimit ( ) const

inline

Request maximum number of active light sources supported by driver and hardware.

InquireLimit()

virtual Standard_Integer Graphic3d_GraphicDriver::InquireLimit ( const Graphic3d_TypeOfLimit  theType ) const

pure virtual

Request limit of graphic resource of specific type.

Implemented in OpenGl_GraphicDriver.

InquirePlaneLimit()

Standard_Integer Graphic3d_GraphicDriver::InquirePlaneLimit ( ) const

inline

Request maximum number of active clipping planes supported by driver and hardware.

InquireViewLimit()

Standard_Integer Graphic3d_GraphicDriver::InquireViewLimit ( ) const

inline

Request maximum number of views supported by driver.

MemoryInfo()

virtual Standard_Boolean Graphic3d_GraphicDriver::MemoryInfo ( Standard_Size &  theFreeBytes, TCollection_AsciiString &  theInfo  ) const

pure virtual

Returns information about GPU memory usage.

Implemented in OpenGl_GraphicDriver.

NewIdentification()

Standard_Integer Graphic3d_GraphicDriver::NewIdentification

(

)

Returns a new identification number for a new structure.

RemoveIdentification()

void Graphic3d_GraphicDriver::RemoveIdentification

(

const Standard_Integer

theId

)

Frees the identifier of a structure.

RemoveStructure()

virtual void Graphic3d_GraphicDriver::RemoveStructure ( Handle< Graphic3d_CStructure > &  theCStructure )

pure virtual

Removes structure from graphic driver and releases its resources.

Implemented in OpenGl_GraphicDriver.

RemoveView()

virtual void Graphic3d_GraphicDriver::RemoveView ( const Handle< Graphic3d_CView > &  theView )

pure virtual

Removes view from graphic driver and releases its resources.

Implemented in OpenGl_GraphicDriver.

RemoveZLayer()

virtual void Graphic3d_GraphicDriver::RemoveZLayer ( const Graphic3d_ZLayerId  theLayerId )

pure virtual

Removes Z layer. All structures displayed at the moment in layer will be displayed in default layer (the bottom-level z layer). By default, there are always default bottom-level layer that can't be removed. The passed theLayerId should be not less than 0 (reserved for default layers that can not be removed).

Implemented in OpenGl_GraphicDriver.

SetZLayerSettings()

virtual void Graphic3d_GraphicDriver::SetZLayerSettings ( const Graphic3d_ZLayerId  theLayerId, const Graphic3d_ZLayerSettings &  theSettings  )

pure virtual

Sets the settings for a single Z layer.

Implemented in OpenGl_GraphicDriver.

TextSize()

virtual void Graphic3d_GraphicDriver::TextSize ( const Handle< Graphic3d_CView > &  theView, const Standard_CString  theText, const Standard_ShortReal  theHeight, Standard_ShortReal &  theWidth, Standard_ShortReal &  theAscent, Standard_ShortReal &  theDescent  ) const

pure virtual

Computes text width.

Implemented in OpenGl_GraphicDriver.

ViewExists()

virtual Standard_Boolean Graphic3d_GraphicDriver::ViewExists ( const Handle< Aspect_Window > &  theWindow, Handle< Graphic3d_CView > &  theView  )

pure virtual

Returns view associated with the window if it is exists and is activated. Returns Standard_True if the view associated to the window exists.

Implemented in OpenGl_GraphicDriver.

ZLayers()

virtual void Graphic3d_GraphicDriver::ZLayers ( TColStd_SequenceOfInteger &  theLayerSeq ) const

pure virtual

Returns list of Z layers defined for the graphical driver.

Implemented in OpenGl_GraphicDriver.

ZLayerSettings()

virtual const Graphic3d_ZLayerSettings& Graphic3d_GraphicDriver::ZLayerSettings ( const Graphic3d_ZLayerId  theLayerId ) const

pure virtual

Returns the settings of a single Z layer.

Implemented in OpenGl_GraphicDriver.

Field Documentation

myDisplayConnection

Handle< Aspect_DisplayConnection > Graphic3d_GraphicDriver::myDisplayConnection

protected

myStructGenId

Aspect_GenId Graphic3d_GraphicDriver::myStructGenId

protected

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The documentation for this class was generated from the following file:

• Graphic3d_GraphicDriver.hxx