TGLManip Class Reference

Abstract base class for viewer manipulators, which allow direct in viewer manipulation of a (TGlPhysicalShape) object - currently translation, scaling and rotation along/round objects local axes.

See derived classes for these implementations.

This class provides binding to the zero or one manipulated physical, hit testing (selection) for manipulator sub component (widget), and some common mouse action handling/tracking.

Definition at line 36 of file TGLManip.h.

Public Member Functions
	TGLManip ()
	Construct a manipulator object, bound to supplied viewer, and no physical shape. More...
	TGLManip (TGLPhysicalShape *shape)
	Construct a manipulator object, bound to supplied physical shape. More...
virtual	~TGLManip ()
	Destroy manipulator object. More...
UInt_t	GetSelectedWidget () const
void	SetSelectedWidget (UInt_t s)
Bool_t	GetActive () const
void	SetActive (Bool_t a)
void	Attach (TGLPhysicalShape *shape)
TGLPhysicalShape *	GetAttached () const
virtual void	Draw (const TGLCamera &camera) const =0
virtual Bool_t	Select (const TGLCamera &, const TGLRect &, const TGLBoundingBox &)
virtual Bool_t	HandleButton (const Event_t &event, const TGLCamera &camera)
	Handle a mouse button event - return kTRUE if processed, kFALSE otherwise. More...
virtual Bool_t	HandleMotion (const Event_t &event, const TGLCamera &camera)
	Handle a mouse button event - return kTRUE if widget selection change kFALSE otherwise. More...
	ClassDef (TGLManip, 0)
Public Member Functions inherited from TVirtualGLManip
virtual	~TVirtualGLManip ()
	ClassDef (TVirtualGLManip, 0)

Protected Member Functions
	TGLManip (const TGLManip &)
	last (latest) mouse position (in WINDOW coords) More...
TGLManip &	operator= (const TGLManip &)
	Assignment operator. More...
void	CalcDrawScale (const TGLBoundingBox &box, const TGLCamera &camera, Double_t &base, TGLVector3 axis[3]) const
	Calculates base and axis scale factor (in world units) for drawing manipulators with reasonable size range in current camera. More...
const UChar_t *	ColorFor (UInt_t widget) const
	Returns color to be used for given widget. More...

Protected Attributes
TGLPhysicalShape *	fShape
UInt_t	fSelectedWidget
	manipulated shape More...
Bool_t	fActive
	active width (axis) component More...
TPoint	fFirstMouse
	manipulator is active? More...
TPoint	fLastMouse
	first (start) mouse position (in WINDOW coords) More...

#include <TGLManip.h>

Inheritance diagram for TGLManip:

Constructor & Destructor Documentation

TGLManip::TGLManip ( const TGLManip &  gm )

protected

last (latest) mouse position (in WINDOW coords)

Copy constructor.

Definition at line 61 of file TGLManip.cxx.

TGLManip::TGLManip

(

)

Construct a manipulator object, bound to supplied viewer, and no physical shape.

Definition at line 39 of file TGLManip.cxx.

TGLManip::TGLManip

(

TGLPhysicalShape *

shape

)

Construct a manipulator object, bound to supplied physical shape.

Definition at line 50 of file TGLManip.cxx.

TGLManip::~TGLManip ( )

virtual

Destroy manipulator object.

Definition at line 90 of file TGLManip.cxx.

Member Function Documentation

void TGLManip::Attach ( TGLPhysicalShape *  shape )

inline

Definition at line 66 of file TGLManip.h.

void TGLManip::CalcDrawScale ( const TGLBoundingBox &  box, const TGLCamera &  camera, Double_t &  base, TGLVector3  axis[3]  ) const

protected

Calculates base and axis scale factor (in world units) for drawing manipulators with reasonable size range in current camera.

Definition at line 156 of file TGLManip.cxx.

Referenced by TGLTransManip::Draw(), TGLScaleManip::Draw(), and TGLRotateManip::Draw().

TGLManip::ClassDef	(	TGLManip	,
		0
	)

const UChar_t * TGLManip::ColorFor ( UInt_t  widget ) const

protected

Returns color to be used for given widget.

Definition at line 97 of file TGLManip.cxx.

Referenced by TGLTransManip::Draw(), TGLScaleManip::Draw(), and TGLRotateManip::Draw().

virtual void TGLManip::Draw ( const TGLCamera &  camera ) const

pure virtual

Implemented in TGLRotateManip, TGLScaleManip, and TGLTransManip.

Referenced by TGLManipSet::Render().

Bool_t TGLManip::GetActive ( ) const

inline

Definition at line 63 of file TGLManip.h.

Referenced by TGLManipSet::Handle().

TGLPhysicalShape* TGLManip::GetAttached ( ) const

inline

Definition at line 67 of file TGLManip.h.

UInt_t TGLManip::GetSelectedWidget ( ) const

inline

Definition at line 60 of file TGLManip.h.

Referenced by TGLManipSet::Handle().

Bool_t TGLManip::HandleButton ( const Event_t &  event, const TGLCamera &  camera  )

virtual

Handle a mouse button event - return kTRUE if processed, kFALSE otherwise.

Reimplemented in TGLRotateManip, and TGLScaleManip.

Definition at line 118 of file TGLManip.cxx.

Referenced by TGLManipSet::Handle(), TGLScaleManip::HandleButton(), and TGLRotateManip::HandleButton().

Bool_t TGLManip::HandleMotion ( const Event_t &  event, const TGLCamera &  camera  )

virtual

Handle a mouse button event - return kTRUE if widget selection change kFALSE otherwise.

Reimplemented in TGLRotateManip, TGLScaleManip, and TGLTransManip.

Definition at line 145 of file TGLManip.cxx.

Referenced by TGLManipSet::Handle().

TGLManip & TGLManip::operator= ( const TGLManip &  gm )

protected

Assignment operator.

Definition at line 74 of file TGLManip.cxx.

virtual Bool_t TGLManip::Select ( const TGLCamera &  , const TGLRect &  , const TGLBoundingBox &    )

inlinevirtual

Implements TVirtualGLManip.

Definition at line 71 of file TGLManip.h.

void TGLManip::SetActive ( Bool_t  a )

inline

Definition at line 64 of file TGLManip.h.

Referenced by TGLManipSet::Handle(), TGLManipSet::MouseEnter(), and TGLManipSet::MouseLeave().

void TGLManip::SetSelectedWidget ( UInt_t  s )

inline

Definition at line 61 of file TGLManip.h.

Referenced by TGLManipSet::Handle(), TGLManipSet::MouseEnter(), and TGLManipSet::MouseLeave().

Member Data Documentation

Bool_t TGLManip::fActive

protected

active width (axis) component

Definition at line 41 of file TGLManip.h.

Referenced by TGLRotateManip::Draw(), GetActive(), HandleButton(), TGLTransManip::HandleMotion(), TGLScaleManip::HandleMotion(), TGLRotateManip::HandleMotion(), operator=(), and SetActive().

TPoint TGLManip::fFirstMouse

protected

manipulator is active?

Definition at line 44 of file TGLManip.h.

Referenced by HandleButton(), TGLScaleManip::HandleMotion(), and operator=().

TPoint TGLManip::fLastMouse

protected

first (start) mouse position (in WINDOW coords)

Definition at line 45 of file TGLManip.h.

Referenced by TGLRotateManip::CalculateAngleDelta(), TGLRotateManip::HandleButton(), HandleButton(), TGLTransManip::HandleMotion(), TGLScaleManip::HandleMotion(), TGLRotateManip::HandleMotion(), and operator=().

UInt_t TGLManip::fSelectedWidget

protected

manipulated shape

Definition at line 40 of file TGLManip.h.

Referenced by ColorFor(), GetSelectedWidget(), TGLScaleManip::HandleButton(), TGLRotateManip::HandleButton(), HandleButton(), TGLTransManip::HandleMotion(), TGLScaleManip::HandleMotion(), operator=(), and SetSelectedWidget().

TGLPhysicalShape* TGLManip::fShape

protected

Definition at line 39 of file TGLManip.h.

Referenced by Attach(), TGLTransManip::Draw(), TGLScaleManip::Draw(), TGLRotateManip::Draw(), GetAttached(), TGLScaleManip::HandleButton(), TGLRotateManip::HandleButton(), TGLTransManip::HandleMotion(), TGLScaleManip::HandleMotion(), TGLRotateManip::HandleMotion(), and operator=().

Collaboration diagram for TGLManip:

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

• graf3d/gl/inc/TGLManip.h
• graf3d/gl/src/TGLManip.cxx