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class TGLRect
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library: libRGL
#include "TGLUtil.h"
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class TGLRect


TGLVertex3

3 component (x/y/z) vertex class

This is part of collection of simple utility classes for GL only in
TGLUtil.h/cxx. These provide const and non-const accessors Arr() &
CArr() to a GL compatible internal field - so can be used directly
with OpenGL C API calls - which TVector3 etc cannot (easily).
They are not intended to be fully featured just provide minimum
required.

Function Members (Methods)

public:
TGLRect()
TGLRect(const TGLRect&)
TGLRect(Int_t x, Int_t y, Int_t width, Int_t height)
TGLRect(Int_t x, Int_t y, UInt_t width, UInt_t height)
virtual~TGLRect()
Double_tAspect() const
Int_tBottom() const
const Int_t*CArr() const
Int_t*CArr()
Int_tCenterX() const
Int_tCenterY() const
static TClass*Class()
Int_tDiagonal() const
voidExpand(Int_t x, Int_t y)
Int_tHeight() const
Int_t&Height()
virtual TClass*IsA() const
Int_tLeft() const
Int_tLongest() const
voidOffset(Int_t dX, Int_t dY)
TGLRect&operator=(const TGLRect&)
EOverlapOverlap(const TGLRect& other) const
Int_tRight() const
voidSet(Int_t x, Int_t y, Int_t width, Int_t height)
voidSetCorner(Int_t x, Int_t y)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
Int_tTop() const
Int_tWidth() const
Int_t&Width()
Int_tX() const
Int_t&X()
Int_tY() const
Int_t&Y()

Data Members

private:
Int_tfHeight! Positive width/height
Int_tfWidth
Int_tfX
Int_tfY! Corner

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

TGLRect(const TGLRect& )
 Construct empty rect object, corner (0,0), width/height 0
TGLRect(Int_t x, Int_t y, Int_t width, Int_t height)
 Construct rect object, corner (x,y), dimensions 'width', 'height'
TGLRect(Int_t x, Int_t y, UInt_t width, UInt_t height)
 Construct rect object, corner (x,y), dimensions 'width', 'height'
~TGLRect()
 Destroy rect object
EOverlap Overlap(const TGLRect& other) const
 Return overlap result (kInside, kOutside, kPartial) of this
 rect with 'other'
void Set(Int_t x, Int_t y, Int_t width, Int_t height)
void SetCorner(Int_t x, Int_t y)
void Offset(Int_t dX, Int_t dY)
void Expand(Int_t x, Int_t y)
 Expand the rect to encompass point (x,y)
Int_t Diagonal()
Int_t Longest()
Double_t Aspect()
 Return aspect ratio (width/height)
Double_t X()
{ return fVals[0]; }
Double_t & X()
{ return fVals[0]; }
Double_t Y()
{ return fVals[1]; }
Double_t & Y()
{ return fVals[1]; }
const Double_t * CArr()
{ return fVals; }
TGLRect(const TGLRect& )
const Int_t* CArr()
 Accessors
{ return &fX; }
Int_t Width()
{ return fWidth; }
Int_t & Width()
{ return fWidth; }
Int_t Height()
{ return fHeight; }
Int_t & Height()
{ return fHeight; }
Int_t CenterX()
{ return fX + fWidth/2; }
Int_t CenterY()
{ return fY + fHeight/2; }
Int_t Left()
{ return fX; }
Int_t Right()
{ return fX + fWidth; }
Int_t Top()
{ return fY; }
Int_t Bottom()
{ return fY + fHeight; }
TGLUtil& operator=(const TGLRect& )

Author: Richard Maunder 25/05/2005
Last update: root/gl:$Name: $:$Id: TGLUtil.cxx,v 1.41 2007/06/24 18:48:11 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

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