TImage attributes.

Image attributes are:

Image Quality (see EImageQuality for the list of qualities)
Compression defines the compression rate of the color data in the internal image structure. Speed and memory depends on this rate, but not the image display itself 0: no compression; 100: max compression
Radio Flag: kTRUE the x/y radio of the displayed image is always identical to the original image kFALSE the x and y size of the displayed image depends on the size of the pad
Palette: Defines the conversion from a pixel value to the screen color

This class is used (in general by secondary inheritance) by some other classes (image display).

Definition at line 59 of file TAttImage.h.

Public Types
enum	EImageQuality { kImgDefault = -1 , kImgPoor = 0 , kImgFast = 1 , kImgGood = 2 , kImgBest = 3 }

Public Member Functions
	TAttImage ()
	TAttImage default constructor.

	TAttImage (EImageQuality lquality, UInt_t lcompression, Bool_t constRatio)
	TAttImage normal constructor.

virtual	~TAttImage ()
	TAttImage destructor.

void	Copy (TAttImage &attline) const
	Copy this image attributes to a new attimage.

virtual void	EditorClosed ()

Bool_t	GetConstRatio () const

UInt_t	GetImageCompression () const

EImageQuality	GetImageQuality () const

virtual const TImagePalette &	GetPalette () const

virtual TClass *	IsA () const

Bool_t	IsPaletteEnabled () const

virtual void	ResetAttImage (Option_t *option="")
	Reset this image attributes to default values.

virtual void	SaveImageAttributes (std::ostream &out, const char *name, EImageQuality qualdef=kImgDefault, UInt_t comprdef=0, Bool_t constRatiodef=kTRUE)
	Save image attributes as C++ statement(s) on output stream, but not the palette.

virtual void	SetConstRatio (Bool_t constRatio=kTRUE)
	Set (constRatio = kTRUE) or unset (constRadio = kFALSE) the ratio flag.

virtual void	SetImageCompression (UInt_t lcompression)

virtual void	SetImageQuality (EImageQuality lquality)

virtual void	SetPalette (const TImagePalette *palette)
	Set a new palette for the image.

virtual void	SetPaletteEnabled (Bool_t on=kTRUE)

virtual void	StartPaletteEditor ()
	Opens a GUI to edit the color palette.

virtual void	Streamer (TBuffer &)

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Protected Attributes
Bool_t	fConstRatio {kFALSE}
	keep aspect ratio of image on the screen

UInt_t	fImageCompression {0}
	compression [0 .. 100] 0: no compression

EImageQuality	fImageQuality {kImgDefault}
	OPTION={GetMethod="GetImageQuality";SetMethod="SetImageQuality";Items=(kImgDefault="Default",kImgPoor="Poor",kImgFast="Fast",kImgGood="Good",kImgBest="Best")}

TImagePalette	fPalette
	color palette for value -> color conversion

TPaletteEditor *	fPaletteEditor {nullptr}
	! GUI to edit the color palette

Bool_t	fPaletteEnabled {kFALSE}
	! kTRUE - palette is drawn on the image

#include <TAttImage.h>

Inheritance diagram for TAttImage:

[legend]

Member Enumeration Documentation

◆ EImageQuality

enum TAttImage::EImageQuality

Enumerator
kImgDefault
kImgPoor
kImgFast
kImgGood
kImgBest

Definition at line 63 of file TAttImage.h.

Constructor & Destructor Documentation

◆ TAttImage() [1/2]

TAttImage::TAttImage ( )

TAttImage default constructor.

Calls ResetAttImage to set the attributes to a default state.

Definition at line 515 of file TAttImage.cxx.

◆ TAttImage() [2/2]

TAttImage::TAttImage	(	EImageQuality	lquality,
		UInt_t	lcompression,
		Bool_t	constRatio
	)

TAttImage normal constructor.

Image attributes are taken from the argument list

Parameters

[in]	lquality	must be one of EImageQuality (kImgDefault is same as kImgGood in the current implementation)
[in]	lcompression	defines the compression rate of the color data in the image. Speed and memory depends on this rate, but not the image display itself 0: no compression; 100: max compression
[in]	constRatio	keeps the aspect ratio of the image constant on the screen (in pixel units)

Definition at line 535 of file TAttImage.cxx.

◆ ~TAttImage()

TAttImage::~TAttImage ( )

virtual

TAttImage destructor.

Definition at line 550 of file TAttImage.cxx.

Member Function Documentation

◆ Class()

static TClass * TAttImage::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TAttImage::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TAttImage::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 106 of file TAttImage.h.

◆ Copy()

void TAttImage::Copy ( TAttImage & attline ) const

Copy this image attributes to a new attimage.

Definition at line 558 of file TAttImage.cxx.

◆ DeclFileName()

static const char * TAttImage::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 106 of file TAttImage.h.

◆ EditorClosed()

virtual void TAttImage::EditorClosed ( )

inlinevirtual

Definition at line 103 of file TAttImage.h.

◆ GetConstRatio()

Bool_t TAttImage::GetConstRatio ( ) const

inline

Definition at line 85 of file TAttImage.h.

◆ GetImageCompression()

UInt_t TAttImage::GetImageCompression ( ) const

inline

Definition at line 86 of file TAttImage.h.

◆ GetImageQuality()

EImageQuality TAttImage::GetImageQuality ( ) const

inline

Definition at line 87 of file TAttImage.h.

◆ GetPalette()

virtual const TImagePalette & TAttImage::GetPalette ( ) const

inlinevirtual

Definition at line 88 of file TAttImage.h.

◆ IsA()

virtual TClass * TAttImage::IsA ( ) const

inlinevirtual

Returns: TClass describing current object

Reimplemented in TASImage, and TImage.

Definition at line 106 of file TAttImage.h.

◆ IsPaletteEnabled()

Bool_t TAttImage::IsPaletteEnabled ( ) const

inline

Definition at line 104 of file TAttImage.h.

◆ ResetAttImage()

void TAttImage::ResetAttImage ( Option_t * option = "" )

virtual

Reset this image attributes to default values.

Default values are:

quality: kImgPoor, (no smoothing while the image is zoomed)
compression: 0 (no compression)
constRatio: kTRUE
palette: a default rainbow palette

Definition at line 575 of file TAttImage.cxx.

◆ SaveImageAttributes()

void TAttImage::SaveImageAttributes	(	std::ostream &	out,
		const char *	name,
		EImageQuality	qualdef = `kImgDefault`,
		UInt_t	comprdef = `0`,
		Bool_t	constRatiodef = `kTRUE`
	)

virtual

Save image attributes as C++ statement(s) on output stream, but not the palette.

Definition at line 611 of file TAttImage.cxx.

◆ SetConstRatio()

void TAttImage::SetConstRatio ( Bool_t constRatio = kTRUE )

virtual

Set (constRatio = kTRUE) or unset (constRadio = kFALSE) the ratio flag.

The aspect ratio of the image on the screen is constant if the ratio flag is set. That means one image pixel is always a square on the screen independent of the pad size and of the size of the zoomed area.

Definition at line 632 of file TAttImage.cxx.

◆ SetImageCompression()

virtual void TAttImage::SetImageCompression ( UInt_t lcompression )

inlinevirtual

Definition at line 97 of file TAttImage.h.

◆ SetImageQuality()

virtual void TAttImage::SetImageQuality ( EImageQuality lquality )

inlinevirtual

Definition at line 99 of file TAttImage.h.

◆ SetPalette()

void TAttImage::SetPalette ( const TImagePalette * palette )

virtual

Set a new palette for the image.

If palette == 0 a default rainbow color palette is used.

Reimplemented in TASImage.

Definition at line 641 of file TAttImage.cxx.

◆ SetPaletteEnabled()

virtual void TAttImage::SetPaletteEnabled ( Bool_t on = kTRUE )

inlinevirtual

Reimplemented in TASImage.

Definition at line 96 of file TAttImage.h.

◆ StartPaletteEditor()

void TAttImage::StartPaletteEditor ( )

virtual

Opens a GUI to edit the color palette.

Reimplemented in TASImage.

Definition at line 771 of file TAttImage.cxx.

◆ Streamer()

virtual void TAttImage::Streamer ( TBuffer & )

virtual

Reimplemented in TASImage, and TImage.

◆ StreamerNVirtual()

void TAttImage::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 106 of file TAttImage.h.

Member Data Documentation

◆ fConstRatio

Bool_t TAttImage::fConstRatio {kFALSE}

protected

keep aspect ratio of image on the screen

Definition at line 74 of file TAttImage.h.

◆ fImageCompression

UInt_t TAttImage::fImageCompression {0}

protected

compression [0 .. 100] 0: no compression

Definition at line 73 of file TAttImage.h.

◆ fImageQuality

EImageQuality TAttImage::fImageQuality {kImgDefault}

protected

OPTION={GetMethod="GetImageQuality";SetMethod="SetImageQuality";Items=(kImgDefault="Default",kImgPoor="Poor",kImgFast="Fast",kImgGood="Good",kImgBest="Best")}

Definition at line 72 of file TAttImage.h.

◆ fPalette

TImagePalette TAttImage::fPalette

protected

color palette for value -> color conversion

Definition at line 75 of file TAttImage.h.

◆ fPaletteEditor

TPaletteEditor* TAttImage::fPaletteEditor {nullptr}

protected

! GUI to edit the color palette

Definition at line 76 of file TAttImage.h.

◆ fPaletteEnabled

Bool_t TAttImage::fPaletteEnabled {kFALSE}

protected

! kTRUE - palette is drawn on the image

Definition at line 77 of file TAttImage.h.

Libraries for TAttImage:

[legend]

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

graf2d/graf/inc/TAttImage.h
graf2d/graf/src/TAttImage.cxx

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Member Enumeration Documentation

◆ EImageQuality

Constructor & Destructor Documentation

◆ TAttImage() [1/2]

◆ TAttImage() [2/2]

◆ ~TAttImage()

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ Copy()

◆ DeclFileName()

◆ EditorClosed()

◆ GetConstRatio()

◆ GetImageCompression()

◆ GetImageQuality()

◆ GetPalette()

◆ IsA()

◆ IsPaletteEnabled()

◆ ResetAttImage()

◆ SaveImageAttributes()

◆ SetConstRatio()

◆ SetImageCompression()

◆ SetImageQuality()

◆ SetPalette()

◆ SetPaletteEnabled()

◆ StartPaletteEditor()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fConstRatio

◆ fImageCompression

◆ fImageQuality

◆ fPalette

◆ fPaletteEditor

◆ fPaletteEnabled