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QRgbaFloat Class

template <typename F> class QRgbaFloat

The QRgbaFloat struct contains a four part RGBA floating-point color. More...

Header: #include <QRgbaFloat>
CMake: find_package(Qt6 REQUIRED COMPONENTS Gui)
target_link_libraries(mytarget PRIVATE Qt6::Gui)
qmake: QT += gui
Since: Qt 6.2

Public Types

FastType

Public Functions

quint8 alpha8() const
quint16 alpha16() const
float alpha() const
float alphaNormalized() const
quint8 blue8() const
quint16 blue16() const
float blue() const
float blueNormalized() const
quint8 green8() const
quint16 green16() const
float green() const
float greenNormalized() const
bool isOpaque() const
bool isTransparent() const
QRgbaFloat<T> premultiplied() const
quint8 red8() const
quint16 red16() const
float red() const
float redNormalized() const
void setAlpha(float alpha)
void setBlue(float blue)
void setGreen(float green)
void setRed(float red)
uint toArgb32() const
QRgbaFloat<T> unpremultiplied() const

Static Public Members

QRgbaFloat<T> fromArgb32(uint rgb)
QRgbaFloat<T> fromRgba64(quint16 red, quint16 green, quint16 blue, quint16 alpha)
QRgbaFloat<T> fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha)
QRgbaFloat16
QRgbaFloat32

Detailed Description

See also QRgb, QRgba64, and QColor.

Member Type Documentation

[alias] QRgbaFloat::FastType

Alias for float.

Member Function Documentation

[constexpr] quint8 QRgbaFloat::alpha8() const

Returns the alpha channel as an 8-bit.

[constexpr] quint16 QRgbaFloat::alpha16() const

Returns the alpha channel as a 16-bit integer.

[constexpr] float QRgbaFloat::alpha() const

Returns the alpha channel.

See also setAlpha().

[constexpr] float QRgbaFloat::alphaNormalized() const

Returns the alpha channel normalized to values between 0.0f and 1.0f.

See also alpha().

[constexpr] quint8 QRgbaFloat::blue8() const

Returns the blue color component as an 8-bit.

[constexpr] quint16 QRgbaFloat::blue16() const

Returns the blue color component as a 16-bit integer.

[constexpr] float QRgbaFloat::blue() const

Returns the blue color component.

See also setBlue().

[constexpr] float QRgbaFloat::blueNormalized() const

Returns the blue color component normalized to values between 0.0f and 1.0f.

See also setBlue().

[static constexpr] QRgbaFloat<T> QRgbaFloat::fromArgb32(uint rgb)

Constructs a QRgbaFloat value from the 32bit ARGB value rgb.

See also fromRgba() and toArgb32().

[static constexpr] QRgbaFloat<T> QRgbaFloat::fromRgba64(quint16 red, quint16 green, quint16 blue, quint16 alpha)

Constructs a QRgbaFloat value from the four 16-bit integer color channels red, green, blue and alpha.

See also fromRgba().

[static constexpr] QRgbaFloat<T> QRgbaFloat::fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha)

Constructs a QRgbaFloat value from the four 8-bit color channels red, green, blue and alpha.

See also fromArgb32().

[constexpr] quint8 QRgbaFloat::green8() const

Returns the green color component as an 8-bit.

[constexpr] quint16 QRgbaFloat::green16() const

Returns the green color component as a 16-bit integer.

[constexpr] float QRgbaFloat::green() const

Returns the green color component.

See also setGreen().

[constexpr] float QRgbaFloat::greenNormalized() const

Returns the green color component normalized to values between 0.0f and 1.0f.

See also setGreen().

[constexpr] bool QRgbaFloat::isOpaque() const

Returns whether the color is fully opaque.

See also isTransparent() and alpha().

[constexpr] bool QRgbaFloat::isTransparent() const

Returns whether the color is fully transparent.

See also isOpaque() and alpha().

[constexpr] QRgbaFloat<T> QRgbaFloat::premultiplied() const

Returns the color with the alpha premultiplied.

See also unpremultiplied().

[constexpr] quint8 QRgbaFloat::red8() const

Returns the red color component as an 8-bit.

[constexpr] quint16 QRgbaFloat::red16() const

Returns the red color component as a 16-bit integer.

[constexpr] float QRgbaFloat::red() const

Returns the red color component.

See also setRed().

[constexpr] float QRgbaFloat::redNormalized() const

Returns the red color component normalized to values between 0.0f and 1.0f.

See also setRed().

void QRgbaFloat::setAlpha(float alpha)

Sets the alpha of this color to alpha.

See also alpha().

void QRgbaFloat::setBlue(float blue)

Sets the blue color component of this color to blue.

See also blue().

void QRgbaFloat::setGreen(float green)

Sets the green color component of this color to green.

See also green().

void QRgbaFloat::setRed(float red)

Sets the red color component of this color to red.

See also red().

[constexpr] uint QRgbaFloat::toArgb32() const

Returns the color as a 32-bit ARGB value.

See also fromArgb32().

[constexpr] QRgbaFloat<T> QRgbaFloat::unpremultiplied() const

Returns the color with the alpha unpremultiplied.

See also premultiplied().

Related Non-Members

QRgbaFloat16

A 64-bit data-structure containing four 16-bit floating point color channels: Red, green, blue and alpha.

QRgbaFloat32

A 128-bit data-structure containing four 32-bit floating point color channels: Red, green, blue and alpha.

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