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 108 of file TAttImage.h.

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

Public Member Functions
	TAttImage ()
	kTRUE - palette is drawn on the image More...

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

virtual	~TAttImage ()
	TAttImage destructor. More...

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

Bool_t	GetConstRatio () const

UInt_t	GetImageCompression () const

EImageQuality	GetImageQuality () const

virtual const TImagePalette &	GetPalette () const

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

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. More...

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

virtual void	SetPaletteEnabled (Bool_t on=kTRUE)

virtual void	SetImageCompression (UInt_t lcompression)

virtual void	SetImageQuality (EImageQuality lquality)

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

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

virtual void	EditorClosed ()

Bool_t	IsPaletteEnabled () const

Protected Attributes
EImageQuality	fImageQuality

UInt_t	fImageCompression

Bool_t	fConstRatio

TImagePalette	fPalette

TPaletteEditor *	fPaletteEditor

Bool_t	fPaletteEnabled
	GUI to edit the color palette. More...

#include <TAttImage.h>

Inheritance diagram for TAttImage:

[legend]

Member Enumeration Documentation

enum TAttImage::EImageQuality

Enumerator
kImgDefault
kImgPoor
kImgFast
kImgGood
kImgBest

Definition at line 112 of file TAttImage.h.

Constructor & Destructor Documentation

TAttImage::TAttImage ( )

kTRUE - palette is drawn on the image

TAttImage default constructor.

Calls ResetAttImage to set the attributes to a default state.

Definition at line 524 of file TAttImage.cxx.

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 544 of file TAttImage.cxx.

TAttImage::~TAttImage ( )

virtual

TAttImage destructor.

Definition at line 559 of file TAttImage.cxx.

Member Function Documentation

void TAttImage::Copy ( TAttImage & attline ) const

Copy this image attributes to a new attimage.

Definition at line 567 of file TAttImage.cxx.

virtual void TAttImage::EditorClosed ( )

inlinevirtual

Definition at line 152 of file TAttImage.h.

Referenced by TPaletteEditor::CloseWindow().

Bool_t TAttImage::GetConstRatio ( ) const

inline

Definition at line 134 of file TAttImage.h.

Referenced by TASImage::Paint().

UInt_t TAttImage::GetImageCompression ( ) const

inline

EImageQuality TAttImage::GetImageQuality ( ) const

inline

virtual const TImagePalette& TAttImage::GetPalette ( ) const

inlinevirtual

Definition at line 137 of file TAttImage.h.

Referenced by TASImage::Paint(), TASImage::SetImage(), and TASImage::SetPalette().

Bool_t TAttImage::IsPaletteEnabled ( ) const

inline

Definition at line 153 of file TAttImage.h.

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 584 of file TAttImage.cxx.

Referenced by TAttImage().

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 620 of file TAttImage.cxx.

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 641 of file TAttImage.cxx.

Referenced by TMVA::draw_activation(), and TMVA::TMVAGlob::plot_logo().

virtual void TAttImage::SetImageCompression ( UInt_t lcompression )

inlinevirtual

Definition at line 146 of file TAttImage.h.

virtual void TAttImage::SetImageQuality ( EImageQuality lquality )

inlinevirtual

Definition at line 148 of file TAttImage.h.

void TAttImage::SetPalette ( const TImagePalette * palette )

virtual

Set a new palette for the image.

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