qrgb888 Class Reference

#include <qdrawhelper_p.h>

Public Functions
quint8	alpha () const
Q_STATIC_INLINE_FUNCTION quint8	alpha (quint8 a)
qrgb888	byte_mul (quint8 a) const
Q_STATIC_INLINE_FUNCTION bool	hasAlpha ()
Q_STATIC_INLINE_FUNCTION quint8	ialpha (quint8 a)
	operator quint32 () const
qrgb888	operator+ (qrgb888 v) const
bool	operator== (qrgb888 v) const
	qrgb888 ()
	qrgb888 (quint32 v)
quint32	rawValue () const
qrgb888	truncedAlpha ()

Properties
uchar	data [3]

Detailed Description

Definition at line 1407 of file qdrawhelper_p.h.

Constructors and Destructors

qrgb888() [1/2]

qrgb888::qrgb888 ( )

inline

Definition at line 1412 of file qdrawhelper_p.h.

{}

qrgb888() [2/2]

qrgb888::qrgb888 ( quint32  v )

inline

Definition at line 1433 of file qdrawhelper_p.h.

{
    data[0] = qRed(v);
    data[1] = qGreen(v);
    data[2] = qBlue(v);
}

Functions

alpha() [1/2]

quint8 qrgb888::alpha ( ) const

inline

Definition at line 1417 of file qdrawhelper_p.h.

{ return 0xff; }

alpha() [2/2]

Q_STATIC_INLINE_FUNCTION quint8 qrgb888::alpha ( quint8  a )

inline

Definition at line 1419 of file qdrawhelper_p.h.

{ return a; }

byte_mul()

qrgb888 qrgb888::byte_mul ( quint8  a ) const

inline

Definition at line 1454 of file qdrawhelper_p.h.

{
    quint32 x(*this);

    quint32 t = (x & 0xff00ff) * a;
    t = (t + ((t >> 8) & 0xff00ff) + 0x800080) >> 8;
    t &= 0xff00ff;

    x = ((x >> 8) & 0xff00ff) * a;
    x = (x + ((x >> 8) & 0xff00ff) + 0x800080);
    x &= 0xff00ff00;
    x |= t;
    return qrgb888(x);
}

hasAlpha()

Q_STATIC_INLINE_FUNCTION bool qrgb888::hasAlpha ( )

inline

Definition at line 1410 of file qdrawhelper_p.h.

{ return false; }

ialpha()

Q_STATIC_INLINE_FUNCTION quint8 qrgb888::ialpha ( quint8  a )

inline

Definition at line 1420 of file qdrawhelper_p.h.

{ return 255 - a; }

operator quint32()

qrgb888::operator quint32 ( ) const

inline

Definition at line 1440 of file qdrawhelper_p.h.

{
    return qRgb(data[0], data[1], data[2]);
}

operator+()

qrgb888 qrgb888::operator+ ( qrgb888  v ) const

inline

Definition at line 1445 of file qdrawhelper_p.h.

{
    qrgb888 t = *this;
    t.data[0] += v.data[0];
    t.data[1] += v.data[1];
    t.data[2] += v.data[2];
    return t;
}

operator==()

bool qrgb888::operator== ( qrgb888  v ) const

inline

Definition at line 1469 of file qdrawhelper_p.h.

{
    return (data[0] == v.data[0] &&
            data[1] == v.data[1] &&
            data[2] == v.data[2]);
}

rawValue()

quint32 qrgb888::rawValue ( ) const

inline

Definition at line 1476 of file qdrawhelper_p.h.

{
    return (data[2] << 16) | (data[1] << 8) | data[0];
}

truncedAlpha()

qrgb888 qrgb888::truncedAlpha ( )

inline

Definition at line 1418 of file qdrawhelper_p.h.

{ return *this; }

Properties

data

uchar qrgb888::data[3]

private

Definition at line 1429 of file qdrawhelper_p.h.

Referenced by operator+(), and operator==().

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The documentation for this class was generated from the following file:

• /src/gui/painting/qdrawhelper_p.h