qargb4444 Class Reference

#include <qdrawhelper_p.h>

Public Functions
quint8	alpha () const
Q_STATIC_INLINE_FUNCTION quint8	alpha (quint8 a)
qargb4444	byte_mul (quint8 a) const
Q_STATIC_INLINE_FUNCTION bool	hasAlpha ()
Q_STATIC_INLINE_FUNCTION quint8	ialpha (quint8 a)
	operator quint32 () const
	operator quint8 () const
qargb4444	operator+ (qargb4444 v) const
bool	operator== (const qargb4444 &v) const
	qargb4444 ()
	qargb4444 (quint32 v)
	qargb4444 (quint32p v)
	qargb4444 (const qrgb444 &v)
quint16	rawValue () const
qargb4444	truncedAlpha ()

Properties
quint16	data

Friends
class	qrgb444

Detailed Description

Definition at line 1596 of file qdrawhelper_p.h.

Constructors and Destructors

qargb4444() [1/4]

qargb4444::qargb4444 ( )

inline

Definition at line 1601 of file qdrawhelper_p.h.

{}

qargb4444() [2/4]

qargb4444::qargb4444 ( quint32  v )

inline

Definition at line 1602 of file qdrawhelper_p.h.

Referenced by qargb4444().

{ *this = qargb4444(quint32p(v)); }

qargb4444() [3/4]

qargb4444::qargb4444 ( quint32p  v )

inlineexplicit

Definition at line 1658 of file qdrawhelper_p.h.

{
    quint32 v = color;
    v &= 0xf0f0f0f0;
    const int a = qAlpha(v) << 8;
    const int r = qRed(v) << 4;
    const int g = qGreen(v);
    const int b = qBlue(v) >> 4;

    data = a | r | g | b;
}

qargb4444() [4/4]

qargb4444::qargb4444 ( const qrgb444 &  v )

inline

Definition at line 1670 of file qdrawhelper_p.h.

{
    data = v.data | 0xf000;
}

Functions

alpha() [1/2]

quint8 qargb4444::alpha ( ) const

inline

Definition at line 1611 of file qdrawhelper_p.h.

{ return ((data & 0xf000) >> 8) | ((data & 0xf000) >> 12); }

alpha() [2/2]

Q_STATIC_INLINE_FUNCTION quint8 qargb4444::alpha ( quint8  a )

inline

Definition at line 1613 of file qdrawhelper_p.h.

{ return (a + 1) >> 4; }

byte_mul()

qargb4444 qargb4444::byte_mul ( quint8  a ) const

inline

Definition at line 1702 of file qdrawhelper_p.h.

{
    quint16 t = (((data & 0xf0f0) * a) >> 4) & 0xf0f0;
    t |= (((data & 0x0f0f) * a) >> 4) & 0x0f0f;

    qargb4444 result;
    result.data = t;
    return result;
}

hasAlpha()

Q_STATIC_INLINE_FUNCTION bool qargb4444::hasAlpha ( )

inline

Definition at line 1599 of file qdrawhelper_p.h.

{ return true; }

ialpha()

Q_STATIC_INLINE_FUNCTION quint8 qargb4444::ialpha ( quint8  a )

inline

Definition at line 1614 of file qdrawhelper_p.h.

{ return 0x10 - alpha(a); }

operator quint32()

qargb4444::operator quint32 ( ) const

inline

Definition at line 1675 of file qdrawhelper_p.h.

{
    const int a = (data & 0xf000);
    const int r = (data & 0x0f00);
    const int g = (data & 0x00f0);
    const int b = (data & 0x000f);
    const int ta = (a >> 8) | (a >> 12);
    const int tr = (r >> 4) | (r >> 8);
    const int tg = g | (g >> 4);
    const int tb = (b << 4) | b;

    return qRgba(tr, tg, tb, ta);
}

operator quint8()

qargb4444::operator quint8 ( ) const

inline

Definition at line 1689 of file qdrawhelper_p.h.

{
    // hw: optimize!
    return qt_colorConvert<quint8, quint32>(operator quint32(), 0);
}

operator+()

qargb4444 qargb4444::operator+ ( qargb4444  v ) const

inline

Definition at line 1695 of file qdrawhelper_p.h.

{
    qargb4444 t;
    t.data = data + v.data;
    return t;
}

operator==()

bool qargb4444::operator== ( const qargb4444 &  v ) const

inline

Definition at line 1617 of file qdrawhelper_p.h.

{ return data == v.data; }

rawValue()

quint16 qargb4444::rawValue ( ) const

inline

Definition at line 1619 of file qdrawhelper_p.h.

{ return data; }

truncedAlpha()

qargb4444 qargb4444::truncedAlpha ( )

inline

Definition at line 1612 of file qdrawhelper_p.h.

{ return *this; }

Friends and Related Functions

qrgb444

friend class qrgb444

friend

Definition at line 1622 of file qdrawhelper_p.h.

Properties

data

quint16 qargb4444::data

private

Definition at line 1623 of file qdrawhelper_p.h.

Referenced by byte_mul(), operator+(), operator==(), and qrgb444::qrgb444().

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

• /src/gui/painting/qdrawhelper_p.h