qcolor.cpp File Reference

#include "qcolor.h"
#include "qcolor_p.h"
#include "qdrawhelper_p.h"
#include "qfloat16.h"
#include "qnamespace.h"
#include "qdatastream.h"
#include "qvariant.h"
#include "qdebug.h"
#include "private/qtools_p.h"
#include <algorithm>
#include <optional>
#include <stdio.h>
#include <limits.h>

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Classes
struct	RGBData

Namespaces
namespace	QColorConstants
	\inmodule QtGui

Macros
#define	rgb(r, g, b)   (0xff000000 | (r << 16) | (g << 8) | b)
#define	QCOLOR_INT_RANGE_CHECK(fn, var)
#define	QCOLOR_REAL_RANGE_CHECK(fn, var)
#define	QRGB(r, g, b)    QRgb(((0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff)))
#define	QRGBA(r, g, b, a)    QRgb(((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff))
#define	Q_MAX_3(a, b, c)   ( ( a > b && a > c) ? a : (b > c ? b : c) )
#define	Q_MIN_3(a, b, c)   ( ( a < b && a < c) ? a : (b < c ? b : c) )

Functions
static int	hex2int (const char *s, int n)
static std::optional< QRgba64 >	get_hex_rgb (const char *name, size_t len)
std::optional< QRgb >	qt_get_hex_rgb (const char *name)
static std::optional< QRgba64 >	get_hex_rgb (const QChar *str, size_t len)
static std::optional< QRgba64 >	get_hex_rgb (QAnyStringView name)
bool	operator< (const char *name, const RGBData &data)
bool	operator< (const RGBData &data, const char *name)
static std::optional< QRgb >	get_named_rgb_no_space (const char *name_no_space)
static std::optional< QRgb >	get_named_rgb (QAnyStringView name)
static QStringList	get_colornames ()
static qfloat16 &	castF16 (quint16 &v)
static const qfloat16 &	castF16 (const quint16 &v)
QDebug	operator<< (QDebug dbg, const QColor &c)
QDataStream &	operator<< (QDataStream &stream, const QColor &color)
QDataStream &	operator>> (QDataStream &stream, QColor &color)

Variables
	QT_BEGIN_NAMESPACE
static constexpr struct RGBData	rgbTbl []
static const int	rgbTblSize = sizeof(rgbTbl) / sizeof(RGBData)
const uint	qt_inv_premul_factor [256]

Macro Definition Documentation

Q_MAX_3

#define Q_MAX_3	(		a,
			b,
			c
	)		( ( a > b && a > c) ? a : (b > c ? b : c) )

Definition at line 2179 of file qcolor.cpp.

Q_MIN_3

#define Q_MIN_3	(		a,
			b,
			c
	)		( ( a < b && a < c) ? a : (b < c ? b : c) )

Definition at line 2180 of file qcolor.cpp.

QCOLOR_INT_RANGE_CHECK

#define QCOLOR_INT_RANGE_CHECK	(		fn,
			var
	)

Value:

    do { \
        if (var < 0 || var > 255) { \
            qWarning(#fn": invalid value %d", var); \
            var = qMax(0, qMin(var, 255)); \
        } \
    } while (0)

Definition at line 581 of file qcolor.cpp.

QCOLOR_REAL_RANGE_CHECK

#define QCOLOR_REAL_RANGE_CHECK	(		fn,
			var
	)

Value:

    do { \
        if (var < 0.0f || var > 1.0f) { \
            qWarning(#fn": invalid value %g", var); \
            var = qMax(0.0f, qMin(var, 1.0f));      \
        } \
    } while (0)

Definition at line 589 of file qcolor.cpp.

QRGB

#define QRGB	(		r,
			g,
			b
	)		QRgb(((0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff)))

QRGBA

#define QRGBA	(		r,
			g,
			b,
			a
	)		QRgb(((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff))

rgb

#define rgb	(		r,
			g,
			b
	)		(0xff000000 | (r << 16) | (g << 8) | b)

Definition at line 124 of file qcolor.cpp.

Function Documentation

castF16() [1/2]

static const qfloat16 & castF16 ( const quint16 &  v )

inlinestatic

Definition at line 1237 of file qcolor.cpp.

castF16() [2/2]

static qfloat16 & castF16 ( quint16 &  v )

inlinestatic

Definition at line 1231 of file qcolor.cpp.

Referenced by QColor::alpha(), QColor::alphaF(), QColor::blueF(), QColor::fromRgbF(), QColor::getRgbF(), QColor::greenF(), QColor::redF(), QColor::setAlpha(), QColor::setAlphaF(), QColor::setBlueF(), QColor::setGreenF(), QColor::setRedF(), QColor::setRgbF(), QColor::toExtendedRgb(), and QColor::toRgb().

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get_colornames()

static QStringList get_colornames ( )

static

Definition at line 333 of file qcolor.cpp.

References i, rgbTbl, and rgbTblSize.

Referenced by QColor::colorNames().

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get_hex_rgb() [1/3]

static std::optional< QRgba64 > get_hex_rgb ( const char *  name, size_t  len  )

static

Definition at line 48 of file qcolor.cpp.

References hex2int(), and qRgba64().

Referenced by QColor::fromString(), get_hex_rgb(), get_hex_rgb(), and qt_get_hex_rgb().

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get_hex_rgb() [2/3]

static std::optional< QRgba64 > get_hex_rgb ( const QChar *  str, size_t  len  )

static

Definition at line 97 of file qcolor.cpp.

References get_hex_rgb(), i, and str.

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get_hex_rgb() [3/3]

static std::optional< QRgba64 > get_hex_rgb ( QAnyStringView  name )

static

Definition at line 108 of file qcolor.cpp.

References get_hex_rgb().

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get_named_rgb()

static std::optional< QRgb > get_named_rgb ( QAnyStringView  name )

static

Definition at line 314 of file qcolor.cpp.

References get_named_rgb_no_space(), pos, and QtMiscUtils::toAsciiLower().

Referenced by QColor::fromString().

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get_named_rgb_no_space()

static std::optional< QRgb > get_named_rgb_no_space ( const char *  name_no_space )

static

Definition at line 300 of file qcolor.cpp.

References rgbTbl, and rgbTblSize.

Referenced by get_named_rgb().

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hex2int()

static int hex2int ( const char *  s, int  n  )

inlinestatic

If s[0..n] is a valid hex number, returns its integer value, otherwise returns -1.

Definition at line 33 of file qcolor.cpp.

References QtMiscUtils::fromHex().

Referenced by get_hex_rgb().

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operator<() [1/2]

bool operator< ( const char *  name, const RGBData &  data  )

inline

Definition at line 295 of file qcolor.cpp.

References qstrcmp().

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operator<() [2/2]

bool operator< ( const RGBData &  data, const char *  name  )

inline

Definition at line 297 of file qcolor.cpp.

References qstrcmp().

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operator<<() [1/2]

QDataStream & operator<< ( QDataStream &  stream, const QColor &  color  )

related

Definition at line 2977 of file qcolor.cpp.

References rgb.

operator<<() [2/2]

QDebug operator<<	(	QDebug	dbg,
		const QColor &	c
	)

Definition at line 2947 of file qcolor.cpp.

References QColor::Cmyk, QColor::ExtendedRgb, QColor::Hsl, QColor::Hsv, and QColor::Rgb.

operator>>()

QDataStream & operator>> ( QDataStream &  stream, QColor &  color  )

related

Definition at line 3013 of file qcolor.cpp.

References rgb.

qt_get_hex_rgb()

std::optional< QRgb > qt_get_hex_rgb

(

const char *

name

)

Definition at line 90 of file qcolor.cpp.

References get_hex_rgb(), and qstrlen().

Referenced by read_xpm_body().

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Variable Documentation

QT_BEGIN_NAMESPACE

QT_BEGIN_NAMESPACE

related

Definition at line 25 of file qcolor.cpp.

qt_inv_premul_factor

const uint qt_inv_premul_factor[256]

Definition at line 3049 of file qcolor.cpp.

Referenced by QColor::qUnpremultiply().

rgbTbl

constexpr struct RGBData rgbTbl[]

static

Referenced by get_colornames(), and get_named_rgb_no_space().

rgbTblSize

const int rgbTblSize = sizeof(rgbTbl) / sizeof(RGBData)

static

Definition at line 281 of file qcolor.cpp.

Referenced by get_colornames(), and get_named_rgb_no_space().