qrgba64.qdoc

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
/*!
    \class QRgba64
    \brief The QRgba64 struct contains a 64-bit RGB color.
    \since 5.6
 
    \ingroup painting
    \inmodule QtGui
 
    QRgba64 is a 64-bit data-structure containing four 16-bit color channels: Red, green, blue and alpha.
 
    QRgba64 can be used as a replacement for QRgb when higher precision is needed. In particular a
    premultiplied QRgba64 can operate on unpremultiplied QRgb without loss of precision except
    for alpha 0.
 
    \sa QRgb, QColor
*/
 
/*!
    \fn QRgba64 QRgba64::operator=(quint64 rgba)
 
    Assigns the value \a rgba to this instance of QRgba64 and returns it.
*/
 
/*!
    \fn static QRgba64 QRgba64::fromRgba64(quint16 r, quint16 g, quint16 b, quint16 a)
 
    Returns the QRgba64 quadruplet (\a{r}, \a{g}, \a{b}, \a{a}).
 
    \sa fromRgba()
*/
 
/*!
    \fn static QRgba64 QRgba64::fromRgba64(quint64 c)
 
    Returns \a c as a QRgba64 struct.
 
    \sa fromArgb32()
*/
 
/*!
    \fn static QRgba64 QRgba64::fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha)
 
    Constructs a QRgba64 value from the four 8-bit color channels \a red, \a green, \a blue and \a alpha.
 
    \sa fromArgb32()
*/
 
/*!
    \fn static QRgba64 QRgba64::fromArgb32(uint rgb)
 
    Constructs a QRgba64 value from the 32bit ARGB value \a rgb.
 
    \sa fromRgba()
*/
 
/*!
    \fn bool QRgba64::isOpaque() const
 
    Returns whether the color is fully opaque.
 
    \sa isTransparent(), alpha()
*/
 
/*!
    \fn bool QRgba64::isTransparent() const
 
    Returns whether the color is transparent.
 
    \sa isOpaque(), alpha()
*/
 
/*!
    \fn quint16 QRgba64::red() const
 
    Returns the 16-bit red color component.
 
    \sa setRed()
*/
 
/*!
    \fn void QRgba64::setRed(quint16 red)
 
    Sets the red color component of this color to \a red.
 
    \sa red()
*/
 
/*!
    \fn quint16 QRgba64::green() const
 
    Returns the 16-bit green color component.
 
    \sa setGreen()
*/
 
/*!
    \fn void QRgba64::setGreen(quint16 green)
 
    Sets the green color component of this color to \a green.
 
    \sa green()
*/
 
/*!
    \fn quint16 QRgba64::blue() const
 
    Returns the 16-bit blue color component.
 
    \sa setBlue()
*/
 
/*!
    \fn void QRgba64::setBlue(quint16 blue)
 
    Sets the blue color component of this color to \a blue.
 
    \sa blue()
*/
 
/*!
    \fn quint16 QRgba64::alpha() const
 
    Returns the 16-bit alpha channel.
 
    \sa setAlpha()
*/
 
/*!
    \fn void QRgba64::setAlpha(quint16 alpha)
 
    Sets the alpha of this color to \a alpha.
 
    \sa alpha()
*/
 
/*!
    \fn quint8 QRgba64::red8() const
 
    Returns the red color component as an 8-bit.
*/
 
/*!
    \fn quint8 QRgba64::green8() const
 
    Returns the green color component as an 8-bit.
*/
 
/*!
    \fn quint8 QRgba64::blue8() const
 
    Returns the blue color component as an 8-bit.
*/
 
/*!
    \fn quint8 QRgba64::alpha8() const
 
    Returns the alpha channel as an 8-bit.
*/
 
/*!
    \fn uint QRgba64::toArgb32() const
 
    Returns the color as a 32-bit ARGB value.
 
    \sa fromArgb32()
*/
 
/*!
    \fn ushort QRgba64::toRgb16() const
 
    Returns the color as a 16-bit RGB value.
 
    \sa toArgb32()
*/
 
/*!
    \fn QRgba64 QRgba64::premultiplied() const
 
    Returns the color with the alpha premultiplied.
 
    \sa unpremultiplied()
*/
 
/*!
    \fn QRgba64 QRgba64::unpremultiplied() const
 
    Returns the color with the alpha unpremultiplied.
 
    \sa premultiplied()
*/
 
/*!
    \fn QRgba64::operator quint64() const
 
    Returns the color as a 64bit unsigned integer
*/
 
/*!
    \fn QRgba64 qRgba64(quint16 r, quint16 g, quint16 b, quint16 a)
    \relates QColor
    \since 5.6
 
    Returns the QRgba64 quadruplet (\a{r}, \a{g}, \a{b}, \a{a}).
 
    \sa qRgba()
*/
 
/*!
    \fn QRgba64 qRgba64(quint64 c)
    \relates QColor
    \since 5.6
 
    Returns \a c as a QRgba64 struct.
 
    \sa qRgba()
*/
 
/*!
    \fn QRgba64 qPremultiply(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Converts an unpremultiplied QRgba64 quadruplet \a rgba64 into a premultiplied QRgba64 quadruplet.
 
    \sa QRgba64::premultiplied(), qUnpremultiply()
*/
 
/*!
    \fn QRgba64 qUnpremultiply(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Converts a premultiplied QRgba64 quadruplet \a rgba64 into an unpremultiplied QRgba64 quadruplet.
 
    \sa QRgba64::unpremultiplied(), qPremultiply()
*/
 
/*!
    \fn uint qRed(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Returns the red component of \a rgba64 as an 8-bit value.
 
    \sa QRgba64::red8(), QColor::red()
*/
 
/*!
    \fn uint qGreen(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Returns the green component of \a rgba64 as an 8-bit value.
 
    \sa QRgba64::green8(), QColor::green()
*/
 
/*!
    \fn uint qBlue(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Returns the blue component of \a rgba64 as an 8-bit value.
 
    \sa QRgba64::blue8(), QColor::blue()
*/
 
/*!
    \fn uint qAlpha(QRgba64 rgba64)
    \since 5.6
    \relates QColor
 
    Returns the alpha component of \a rgba64 as an 8-bit value.
 
    \sa QRgba64::alpha8(), QColor::alpha()
*/
 
/*!
    \fn size_t QRgba64::qHash(QRgba64 key, size_t seed = 0);
    \qhash{QRgba64}
    \since 6.11.1
 
    In Qt versions prior to 6.11.1, the type was hashable via its implicit
    conversion to quint64. This explicit qHash() overload retains compatibility
    with that implicit qHash().
*/