QColorTransform Class Reference

The QColorTransform class is a transformation between color spaces. More...

#include <qcolortransform.h>

Collaboration diagram for QColorTransform:

Public Member Functions
	QColorTransform () noexcept=default
Q_GUI_EXPORT	~QColorTransform ()
Q_GUI_EXPORT	QColorTransform (const QColorTransform &colorTransform) noexcept
	QColorTransform (QColorTransform &&colorTransform)=default
QColorTransform &	operator= (const QColorTransform &other) noexcept
void	swap (QColorTransform &other) noexcept
Q_GUI_EXPORT bool	isIdentity () const noexcept
Q_GUI_EXPORT QRgb	map (QRgb argb) const
	Applies the color transformation on the QRgb value argb.
Q_GUI_EXPORT QRgba64	map (QRgba64 rgba64) const
	Applies the color transformation on the QRgba64 value rgba64.
Q_GUI_EXPORT QRgbaFloat16	map (QRgbaFloat16 rgbafp16) const
	Applies the color transformation on the QRgbaFloat16 value rgbafp16.
Q_GUI_EXPORT QRgbaFloat32	map (QRgbaFloat32 rgbafp32) const
	Applies the color transformation on the QRgbaFloat32 value rgbafp32.
Q_GUI_EXPORT QColor	map (const QColor &color) const
	Applies the color transformation on the QColor value color.

Friends
class	QColorSpacePrivate
class	QColorTransformPrivate
bool	operator== (const QColorTransform &ct1, const QColorTransform &ct2)
bool	operator!= (const QColorTransform &ct1, const QColorTransform &ct2)

Detailed Description

The QColorTransform class is a transformation between color spaces.

Since

5.14

\inmodule QtGui

QColorTransform is an instantiation of a transformation between color spaces. It can be applied on color and pixels to convert them from one color space to another.

To create a QColorTransform, use QColorSpace::transformationToColorSpace():

QColorSpace sourceColorSpace(QColorSpace::SRgb);
QColorSpace targetColorSpace(QColorSpace::DisplayP3);
QColorTransform srgbToP3Transform = sourceColorSpace.transformationToColorSpace(targetColorSpace);

Setting up a QColorTransform takes some preprocessing, so keeping around QColorTransforms that you need often is recommended, instead of generating them on the fly.

Definition at line 25 of file qcolortransform.h.

Constructor & Destructor Documentation

QColorTransform() [1/3]

QColorTransform::QColorTransform ( )

defaultnoexcept

~QColorTransform()

QColorTransform::~QColorTransform ( )

default

QColorTransform() [2/3]

QColorTransform::QColorTransform ( const QColorTransform & colorTransform )

defaultnoexcept

QColorTransform() [3/3]

QColorTransform::QColorTransform ( QColorTransform && colorTransform )

default

Member Function Documentation

isIdentity()

bool QColorTransform::isIdentity ( ) const

noexcept

Since

6.4 Returns true if the color transform is the identity transform.

Definition at line 111 of file qcolortransform.cpp.

map() [1/5]

QColor QColorTransform::map

(

const QColor &

color

)

const

Applies the color transformation on the QColor value color.

Definition at line 241 of file qcolortransform.cpp.

map() [2/5]

QRgb QColorTransform::map

(

QRgb

argb

)

const

Applies the color transformation on the QRgb value argb.

The input should be opaque or unpremultiplied.

Definition at line 176 of file qcolortransform.cpp.

map() [3/5]

QRgba64 QColorTransform::map

(

QRgba64

rgba64

)

const

Applies the color transformation on the QRgba64 value rgba64.

The input should be opaque or unpremultiplied.

Definition at line 191 of file qcolortransform.cpp.

map() [4/5]

QRgbaFloat16 QColorTransform::map

(

QRgbaFloat16

rgbafp16

)

const

Applies the color transformation on the QRgbaFloat16 value rgbafp16.

The input should be opaque or unpremultiplied.

Since

6.4

Definition at line 207 of file qcolortransform.cpp.

map() [5/5]

QRgbaFloat32 QColorTransform::map

(

QRgbaFloat32

rgbafp32

)

const

Applies the color transformation on the QRgbaFloat32 value rgbafp32.

The input should be opaque or unpremultiplied.

Since

6.4

Definition at line 225 of file qcolortransform.cpp.

operator=()

QColorTransform & QColorTransform::operator= ( const QColorTransform & other )

inlinenoexcept

Definition at line 32 of file qcolortransform.h.

swap()

void QColorTransform::swap ( QColorTransform & other )

inlinenoexcept

Definition at line 39 of file qcolortransform.h.

Friends And Related Symbol Documentation

operator!=

bool operator!= ( const QColorTransform & ct1, const QColorTransform & ct2 )

friend

Since

6.4 Returns true if ct1 does not define the same transformation as ct2.

Definition at line 50 of file qcolortransform.h.

operator==

bool operator== ( const QColorTransform & ct1, const QColorTransform & ct2 )

friend

Since

6.4 Returns true if ct1 defines the same color transformation as ct2.

Definition at line 48 of file qcolortransform.h.

QColorSpacePrivate

friend class QColorSpacePrivate

friend

Definition at line 54 of file qcolortransform.h.

QColorTransformPrivate

friend class QColorTransformPrivate

friend

Definition at line 55 of file qcolortransform.h.

---

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

• qtbase/src/gui/painting/qcolortransform.h (567ffafe7fed4536359e8a6b925aaf4379d67b67)
• qtbase/src/gui/painting/qcolortransform.cpp (11dc7e1c05d83d45c5057d50560037a2da4416a8)