QRgba64 Class
The QRgba64 struct contains a 64-bit RGB color. More...
| Header: | #include <QRgba64> |
| qmake: | QT += gui |
| Since: | Qt 5.6 |
Public Functions
| QRgba64() | |
| quint8 | alpha8() const |
| quint16 | alpha() const |
| quint8 | blue8() const |
| quint16 | blue() const |
| quint8 | green8() const |
| quint16 | green() const |
| bool | isOpaque() const |
| bool | isTransparent() const |
| QRgba64 | premultiplied() const |
| quint8 | red8() const |
| quint16 | red() const |
| void | setAlpha(quint16 alpha) |
| void | setBlue(quint16 blue) |
| void | setGreen(quint16 green) |
| void | setRed(quint16 red) |
| uint | toArgb32() const |
| ushort | toRgb16() const |
| QRgba64 | unpremultiplied() const |
| quint64 | operator quint64() const |
| QRgba64 | operator=(quint64 rgba) |
Static Public Members
| QRgba64 | fromArgb32(uint rgb) |
| QRgba64 | fromRgba64(quint64 c) |
| QRgba64 | fromRgba64(quint16 r, quint16 g, quint16 b, quint16 a) |
| QRgba64 | fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha) |
Detailed Description
The QRgba64 struct contains a 64-bit RGB color.
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.
Member Function Documentation
QRgba64::QRgba64()
Default constructs an instance of QRgba64.
quint8 QRgba64::alpha8() const
Returns the alpha channel as an 8-bit.
quint16 QRgba64::alpha() const
Returns the 16-bit alpha channel.
See also setAlpha().
quint8 QRgba64::blue8() const
Returns the blue color component as an 8-bit.
quint16 QRgba64::blue() const
Returns the 16-bit blue color component.
See also setBlue().
[static] QRgba64 QRgba64::fromArgb32(uint rgb)
Constructs a QRgba64 value from the 32bit ARGB value rgb.
See also fromRgba().
[static] QRgba64 QRgba64::fromRgba64(quint64 c)
Returns c as a QRgba64 struct.
See also fromArgb32().
[static] QRgba64 QRgba64::fromRgba64(quint16 r, quint16 g, quint16 b, quint16 a)
Returns the QRgba64 quadruplet (r, g, b, a).
See also fromRgba().
[static] QRgba64 QRgba64::fromRgba(quint8 red, quint8 green, quint8 blue, quint8 alpha)
Constructs a QRgba64 value from the four 8-bit color channels red, green, blue and alpha.
See also fromArgb32().
quint8 QRgba64::green8() const
Returns the green color component as an 8-bit.
quint16 QRgba64::green() const
Returns the 16-bit green color component.
See also setGreen().
bool QRgba64::isOpaque() const
Returns whether the color is fully opaque.
See also isTransparent() and alpha().
bool QRgba64::isTransparent() const
Returns whether the color is transparent.
See also isOpaque() and alpha().
QRgba64 QRgba64::premultiplied() const
Returns the color with the alpha premultiplied.
See also unpremultiplied().
quint8 QRgba64::red8() const
Returns the red color component as an 8-bit.
quint16 QRgba64::red() const
Returns the 16-bit red color component.
See also setRed().
void QRgba64::setAlpha(quint16 alpha)
Sets the alpha of this color to alpha.
See also alpha().
void QRgba64::setBlue(quint16 blue)
Sets the blue color component of this color to blue.
See also blue().
void QRgba64::setGreen(quint16 green)
Sets the green color component of this color to green.
See also green().
void QRgba64::setRed(quint16 red)
Sets the red color component of this color to red.
See also red().
uint QRgba64::toArgb32() const
Returns the color as a 32-bit ARGB value.
See also fromArgb32().
ushort QRgba64::toRgb16() const
Returns the color as a 16-bit RGB value.
See also toArgb32().
QRgba64 QRgba64::unpremultiplied() const
Returns the color with the alpha unpremultiplied.
See also premultiplied().
quint64 QRgba64::operator quint64() const
Returns the color as a 64bit unsigned integer
QRgba64 QRgba64::operator=(quint64 rgba)
Assigns the value rgba to this instance of QRgba64 and returns it.
© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.