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QRgbaFloat Class

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

This class was introduced in Qt 6.2.

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Publié le - Mis à jour le 14 février 2024 

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QRgbaFloat Class▲

  • Header: QRgbaFloat

  • Since: Qt 6.2

  • CMake:

    find_package(Qt6 REQUIRED COMPONENTS Gui)

    target_link_libraries(mytarget PRIVATE Qt6::Gui)

  • qmake: QT += gui

  • Group: QRgbaFloat is part of Painting Classes

Detailed Description▲

 

See Also▲

See also QRgb, QRgba64, 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] QRgbaFloat::FastType QRgbaFloat::alpha() const▲

Returns the alpha channel.

See Also▲

See also setAlpha()

[constexpr] QRgbaFloat::FastType QRgbaFloat::alphaNormalized() const▲

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

See Also▲

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] QRgbaFloat::FastType QRgbaFloat::blue() const▲

Returns the blue color component.

See Also▲

See also setBlue()

[constexpr] QRgbaFloat::FastType QRgbaFloat::blueNormalized() const▲

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

See Also▲

See also setBlue()

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

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

See Also▲

See also fromRgba(), 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▲

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▲

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] QRgbaFloat::FastType QRgbaFloat::green() const▲

Returns the green color component.

See Also▲

See also setGreen()

[constexpr] QRgbaFloat::FastType QRgbaFloat::greenNormalized() const▲

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

See Also▲

See also setGreen()

[constexpr] bool QRgbaFloat::isOpaque() const▲

Returns whether the color is fully opaque.

See Also▲

See also isTransparent(), alpha()

[constexpr] bool QRgbaFloat::isTransparent() const▲

Returns whether the color is fully transparent.

See Also▲

See also isOpaque(), alpha()

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

Returns the color with the alpha premultiplied.

See Also▲

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] QRgbaFloat::FastType QRgbaFloat::red() const▲

Returns the red color component.

See Also▲

See also setRed()

[constexpr] QRgbaFloat::FastType QRgbaFloat::redNormalized() const▲

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

See Also▲

See also setRed()

void QRgbaFloat::setAlpha(QRgbaFloat::FastType alpha)▲

Sets the alpha of this color to alpha.

See Also▲

See also alpha()

void QRgbaFloat::setBlue(QRgbaFloat::FastType blue)▲

Sets the blue color component of this color to blue.

See Also▲

See also blue()

void QRgbaFloat::setGreen(QRgbaFloat::FastType green)▲

Sets the green color component of this color to green.

See Also▲

See also green()

void QRgbaFloat::setRed(QRgbaFloat::FastType red)▲

Sets the red color component of this color to red.

See Also▲

See also red()

[constexpr] uint QRgbaFloat::toArgb32() const▲

Returns the color as a 32-bit ARGB value.

See Also▲

See also fromArgb32()

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

Returns the color with the alpha unpremultiplied.

See Also▲

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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