QColorTransform Class
The QColorTransform class is a transformation between color spaces. More...
| Header: | #include <QColorTransform> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS Gui)target_link_libraries(mytarget PRIVATE Qt6::Gui) |
| qmake: | QT += gui |
- List of all members, including inherited members
- QColorTransform is part of Painting Classes.
Public Functions
(since 6.4) bool | isIdentity() const |
| QRgb | map(QRgb argb) const |
| QRgba64 | map(QRgba64 rgba64) const |
(since 6.4) QRgbaFloat16 | map(QRgbaFloat16 rgbafp16) const |
(since 6.4) QRgbaFloat32 | map(QRgbaFloat32 rgbafp32) const |
| QColor | map(const QColor &color) const |
Related Non-Members
(since 6.4) bool | operator!=(const QColorTransform &ct1, const QColorTransform &ct2) |
(since 6.4) bool | operator==(const QColorTransform &ct1, const QColorTransform &ct2) |
Detailed Description
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.
Member Function Documentation
[noexcept, since 6.4] bool QColorTransform::isIdentity() const
Returns true if the color transform is the identity transform.
This function was introduced in Qt 6.4.
QRgb QColorTransform::map(QRgb argb) const
Applies the color transformation on the QRgb value argb.
The input should be opaque or unpremultiplied.
QRgba64 QColorTransform::map(QRgba64 rgba64) const
Applies the color transformation on the QRgba64 value rgba64.
The input should be opaque or unpremultiplied.
[since 6.4] QRgbaFloat16 QColorTransform::map(QRgbaFloat16 rgbafp16) const
Applies the color transformation on the QRgbaFloat16 value rgbafp16.
The input should be opaque or unpremultiplied.
This function was introduced in Qt 6.4.
[since 6.4] QRgbaFloat32 QColorTransform::map(QRgbaFloat32 rgbafp32) const
Applies the color transformation on the QRgbaFloat32 value rgbafp32.
The input should be opaque or unpremultiplied.
This function was introduced in Qt 6.4.
QColor QColorTransform::map(const QColor &color) const
Applies the color transformation on the QColor value color.
Related Non-Members
[since 6.4] bool operator!=(const QColorTransform &ct1, const QColorTransform &ct2)
Returns true if ct1 does not define the same transformation as ct2.
This function was introduced in Qt 6.4.
[since 6.4] bool operator==(const QColorTransform &ct1, const QColorTransform &ct2)
Returns true if ct1 defines the same color transformation as ct2.
This function was introduced in Qt 6.4.
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