TGLColor Class Reference

Class encapsulating color information in preferred GL format - an array of four unsigned bytes.

Color index is also cached for easier interfacing with the traditional ROOT graphics.

Definition at line 784 of file TGLUtil.h.

Public Member Functions
	TGLColor ()
	Default constructor. Color is initialized to black.
	TGLColor (Color_t color_index, Char_t transparency=0)
	Constructor from color-index and transparency.
	TGLColor (const TGLColor &c)
	copy constructor
	TGLColor (Float_t r, Float_t g, Float_t b, Float_t a=1)
	Constructor from Float_t values.
	TGLColor (Int_t r, Int_t g, Int_t b, Int_t a=255)
	Constructor from Int_t values.
UChar_t *	Arr ()
TString	AsString () const
	Return string describing the color.
const UChar_t *	CArr () const
	ClassDefNV (TGLColor, 0)
UChar_t	GetAlpha () const
UChar_t	GetBlue () const
Color_t	GetColorIndex () const
	Returns color-index representing the color.
UChar_t	GetGreen () const
UChar_t	GetRed () const
Char_t	GetTransparency () const
	Returns transparency value.
TGLColor &	operator= (const TGLColor &c)
	Assignment operator.
void	SetAlpha (Int_t v)
void	SetBlue (Int_t v)
void	SetColor (Color_t color_index)
	Set color by color-index.
void	SetColor (Color_t color_index, Char_t transparency)
	Set color by color-index and alpha from the transparency.
void	SetColor (Float_t r, Float_t g, Float_t b, Float_t a=1)
	Set color with Float_t values.
void	SetColor (Int_t r, Int_t g, Int_t b, Int_t a=255)
	Set color with Int_t values.
void	SetGreen (Int_t v)
void	SetRed (Int_t v)
void	SetTransparency (Char_t transparency)
	Set alpha from the transparency.

Protected Attributes
Short_t	fIndex
UChar_t	fRGBA [4]

#include <TGLUtil.h>

Constructor & Destructor Documentation

TGLColor() [1/5]

TGLColor::TGLColor

(

)

Default constructor. Color is initialized to black.

Definition at line 1158 of file TGLUtil.cxx.

TGLColor() [2/5]

TGLColor::TGLColor	(	Int_t	r,
		Int_t	g,
		Int_t	b,
		Int_t	a = 255
	)

Constructor from Int_t values.

Definition at line 1168 of file TGLUtil.cxx.

TGLColor() [3/5]

TGLColor::TGLColor	(	Float_t	r,
		Float_t	g,
		Float_t	b,
		Float_t	a = 1
	)

Constructor from Float_t values.

Definition at line 1176 of file TGLUtil.cxx.

TGLColor() [4/5]

TGLColor::TGLColor	(	Color_t	color_index,
		Char_t	transparency = 0
	)

Constructor from color-index and transparency.

Definition at line 1184 of file TGLUtil.cxx.

TGLColor() [5/5]

TGLColor::TGLColor

(

const TGLColor &

c

)

copy constructor

Definition at line 1192 of file TGLUtil.cxx.

Member Function Documentation

Arr()

UChar_t * TGLColor::Arr ( )

inline

Definition at line 799 of file TGLUtil.h.

AsString()

TString TGLColor::AsString

(

)

const

Return string describing the color.

Definition at line 1320 of file TGLUtil.cxx.

CArr()

const UChar_t * TGLColor::CArr ( ) const

inline

Definition at line 800 of file TGLUtil.h.

ClassDefNV()

TGLColor::ClassDefNV	(	TGLColor	,
		0
	)

GetAlpha()

UChar_t TGLColor::GetAlpha ( ) const

inline

Definition at line 805 of file TGLUtil.h.

GetBlue()

UChar_t TGLColor::GetBlue ( ) const

inline

Definition at line 804 of file TGLUtil.h.

GetColorIndex()

Color_t TGLColor::GetColorIndex

(

)

const

Returns color-index representing the color.

Definition at line 1217 of file TGLUtil.cxx.

GetGreen()

UChar_t TGLColor::GetGreen ( ) const

inline

Definition at line 803 of file TGLUtil.h.

GetRed()

UChar_t TGLColor::GetRed ( ) const

inline

Definition at line 802 of file TGLUtil.h.

GetTransparency()

Char_t TGLColor::GetTransparency

(

)

const

Returns transparency value.

Definition at line 1227 of file TGLUtil.cxx.

operator=()

TGLColor & TGLColor::operator=

(

const TGLColor &

c

)

Assignment operator.

Definition at line 1204 of file TGLUtil.cxx.

SetAlpha()

void TGLColor::SetAlpha ( Int_t  v )

inline

Definition at line 813 of file TGLUtil.h.

SetBlue()

void TGLColor::SetBlue ( Int_t  v )

inline

Definition at line 812 of file TGLUtil.h.

SetColor() [1/4]

void TGLColor::SetColor

(

Color_t

color_index

)

Set color by color-index.

Alpha is not changed. If color_index is not valid, color is set to magenta.

Definition at line 1260 of file TGLUtil.cxx.

SetColor() [2/4]

void TGLColor::SetColor	(	Color_t	color_index,
		Char_t	transparency
	)

Set color by color-index and alpha from the transparency.

If color_index is not valid, color is set to magenta.

Definition at line 1284 of file TGLUtil.cxx.

SetColor() [3/4]

void TGLColor::SetColor	(	Float_t	r,
		Float_t	g,
		Float_t	b,
		Float_t	a = 1
	)

Set color with Float_t values.

Definition at line 1247 of file TGLUtil.cxx.

SetColor() [4/4]

void TGLColor::SetColor	(	Int_t	r,
		Int_t	g,
		Int_t	b,
		Int_t	a = 255
	)

Set color with Int_t values.

Definition at line 1235 of file TGLUtil.cxx.

SetGreen()

void TGLColor::SetGreen ( Int_t  v )

inline

Definition at line 811 of file TGLUtil.h.

SetRed()

void TGLColor::SetRed ( Int_t  v )

inline

Definition at line 810 of file TGLUtil.h.

SetTransparency()

void TGLColor::SetTransparency

(

Char_t

transparency

)

Set alpha from the transparency.

Definition at line 1312 of file TGLUtil.cxx.

Member Data Documentation

fIndex

Short_t TGLColor::fIndex

mutableprotected

Definition at line 788 of file TGLUtil.h.

fRGBA

UChar_t TGLColor::fRGBA[4]

protected

Definition at line 787 of file TGLUtil.h.

Libraries for TGLColor:

---

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

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