QGLCmap Class Reference

Public Types
enum	Flags { Reserved = 0x01, Reserved = 0x01 }
enum	Flags { Reserved = 0x01, Reserved = 0x01 }

Public Functions
int	allocate (QRgb color, uint flags=0, quint8 context=0)
int	allocate (QRgb color, uint flags=0, quint8 context=0)
const QRgb *	colors () const
const QRgb *	colors () const
int	find (QRgb color) const
int	find (QRgb color) const
int	findNearest (QRgb color) const
int	findNearest (QRgb color) const
int	maxSize () const
int	maxSize () const
QGLCmap &	operator= (const QGLCmap &map)
QGLCmap &	operator= (const QGLCmap &map)
	QGLCmap (int maxSize=256)
	QGLCmap (const QGLCmap &map)
	QGLCmap (int maxSize=256)
	QGLCmap (const QGLCmap &map)
void	resize (int newSize)
void	resize (int newSize)
void	setEntry (int idx, QRgb color, uint flags=0, quint8 context=0)
void	setEntry (int idx, QRgb color, uint flags=0, quint8 context=0)
int	size () const
int	size () const
	~QGLCmap ()
	~QGLCmap ()

Private Functions
void	detach ()
void	detach ()

Properties
QGLCmapPrivate *	d

Detailed Description

Definition at line 180 of file qgl_win.cpp.

Enumerations

Flags [1/2]

enum QGLCmap::Flags

Enumerator
Reserved
Reserved

Definition at line 183 of file qgl_win.cpp.

{ Reserved = 0x01 };

Flags [2/2]

enum QGLCmap::Flags

Enumerator
Reserved
Reserved

Definition at line 214 of file qgl_wince.cpp.

{ Reserved = 0x01 };

Constructors and Destructors

QGLCmap() [1/4]

QGLCmap::QGLCmap

(

int

maxSize = 256

)

Definition at line 211 of file qgl_win.cpp.

{
    d = new QGLCmapPrivate;
    d->maxSize = maxSize;
}

QGLCmap() [2/4]

QGLCmap::QGLCmap

(

const QGLCmap &

map

)

Definition at line 218 of file qgl_win.cpp.

{
    d = map.d;
    d->ref();
}

~QGLCmap() [1/2]

QGLCmap::~QGLCmap

(

)

Definition at line 225 of file qgl_win.cpp.

{
    if (d && d->deref())
        delete d;
    d = 0;
}

QGLCmap() [3/4]

QGLCmap::QGLCmap

(

int

maxSize = 256

)

QGLCmap() [4/4]

QGLCmap::QGLCmap

(

const QGLCmap &

map

)

~QGLCmap() [2/2]

QGLCmap::~QGLCmap

(

)

Functions

allocate() [1/2]

int QGLCmap::allocate	(	QRgb	color,
		uint	flags = 0,
		quint8	context = 0
	)

Definition at line 333 of file qgl_win.cpp.

{
    int idx = find(color);
    if (idx >= 0)
        return idx;

    int mapSize = d->colorArray.size();
    int newIdx = d->allocArray.indexOf(QGLCmapPrivate::UnAllocated);

    if (newIdx < 0) {                        // Must allocate more room
        if (mapSize < d->maxSize) {
            newIdx = mapSize;
            mapSize++;
            resize(mapSize);
        }
        else {
            //# add a bool param that says what to do in case no more room -
            // fail (-1) or return nearest?
            return -1;
        }
    }

    d->colorArray[newIdx] = color;
    if (flags & QGLCmap::Reserved) {
        d->allocArray[newIdx] = QGLCmapPrivate::Reserved;
    }
    else {
        d->allocArray[newIdx] = QGLCmapPrivate::Allocated;
        d->colorMap.insert(color, newIdx);
    }
    d->contextArray[newIdx] = context;
    return newIdx;
}

allocate() [2/2]

int QGLCmap::allocate	(	QRgb	color,
		uint	flags = 0,
		quint8	context = 0
	)

colors() [1/2]

const QRgb * QGLCmap::colors

(

)

const

Definition at line 392 of file qgl_win.cpp.

{
    return d->colorArray.data();
}

colors() [2/2]

const QRgb* QGLCmap::colors

(

)

const

detach() [1/2]

void QGLCmap::detach ( )

private

Definition at line 255 of file qgl_win.cpp.

{
    if (d->count != 1) {
        d->deref();
        QGLCmapPrivate* newd = new QGLCmapPrivate;
        newd->maxSize = d->maxSize;
        newd->colorArray = d->colorArray;
        newd->allocArray = d->allocArray;
        newd->contextArray = d->contextArray;
        newd->colorArray.detach();
        newd->allocArray.detach();
        newd->contextArray.detach();
        newd->colorMap = d->colorMap;
        d = newd;
    }
}

detach() [2/2]

void QGLCmap::detach ( )

private

find() [1/2]

int QGLCmap::find

(

QRgb

color

)

const

Definition at line 292 of file qgl_win.cpp.

{
    QMap<uint,int>::ConstIterator it = d->colorMap.find(color);
    if (it != d->colorMap.end())
        return *it;
    return -1;
}

find() [2/2]

int QGLCmap::find

(

QRgb

color

)

const

findNearest() [1/2]

int QGLCmap::findNearest

(

QRgb

color

)

const

Definition at line 301 of file qgl_win.cpp.

{
    int idx = find(color);
    if (idx >= 0)
        return idx;
    int mapSize = size();
    int mindist = 200000;
    int r = qRed(color);
    int g = qGreen(color);
    int b = qBlue(color);
    int rx, gx, bx, dist;
    for (int i=0; i < mapSize; i++) {
        if (!(d->allocArray[i] & QGLCmapPrivate::Allocated))
            continue;
        QRgb ci = d->colorArray[i];
        rx = r - qRed(ci);
        gx = g - qGreen(ci);
        bx = b - qBlue(ci);
        dist = rx*rx + gx*gx + bx*bx;                // calculate distance
        if (dist < mindist) {                        // minimal?
            mindist = dist;
            idx = i;
        }
    }
    return idx;
}

findNearest() [2/2]

int QGLCmap::findNearest

(

QRgb

color

)

const

maxSize() [1/2]

int QGLCmap::maxSize

(

)

const

Definition at line 249 of file qgl_win.cpp.

{
    return d->maxSize;
}

maxSize() [2/2]

int QGLCmap::maxSize

(

)

const

operator=() [1/2]

QGLCmap & QGLCmap::operator=

(

const QGLCmap &

map

)

Definition at line 233 of file qgl_win.cpp.

{
    map.d->ref();
    if (d->deref())
        delete d;
    d = map.d;
    return *this;
}

operator=() [2/2]

QGLCmap& QGLCmap::operator=

(

const QGLCmap &

map

)

resize() [1/2]

void QGLCmap::resize

(

int

newSize

)

Definition at line 273 of file qgl_win.cpp.

{
    if (newSize < 0 || newSize > d->maxSize) {
        qWarning("QGLCmap::resize(): size out of range");
        return;
    }
    int oldSize = size();
    detach();
    //if shrinking; remove the lost elems from colorMap
    d->colorArray.resize(newSize);
    d->allocArray.resize(newSize);
    d->contextArray.resize(newSize);
    if (newSize > oldSize) {
        memset(d->allocArray.data() + oldSize, 0, newSize - oldSize);
        memset(d->contextArray.data() + oldSize, 0, newSize - oldSize);
    }
}

resize() [2/2]

void QGLCmap::resize

(

int

newSize

)

setEntry() [1/2]

void QGLCmap::setEntry	(	int	idx,
		QRgb	color,
		uint	flags = 0,
		quint8	context = 0
	)

Definition at line 368 of file qgl_win.cpp.

{
    if (idx < 0 || idx >= d->maxSize) {
        qWarning("QGLCmap::set(): Index out of range");
        return;
    }
    detach();
    int mapSize = size();
    if (idx >= mapSize) {
        mapSize = idx + 1;
        resize(mapSize);
    }
    d->colorArray[idx] = color;
    if (flags & QGLCmap::Reserved) {
        d->allocArray[idx] = QGLCmapPrivate::Reserved;
    }
    else {
        d->allocArray[idx] = QGLCmapPrivate::Allocated;
        d->colorMap.insert(color, idx);
    }
    d->contextArray[idx] = context;
}

setEntry() [2/2]

void QGLCmap::setEntry	(	int	idx,
		QRgb	color,
		uint	flags = 0,
		quint8	context = 0
	)

size() [1/2]

int QGLCmap::size

(

)

const

Definition at line 243 of file qgl_win.cpp.

{
    return d->colorArray.size();
}

size() [2/2]

int QGLCmap::size

(

)

const

Properties

d

QGLCmapPrivate * QGLCmap::d

private

Definition at line 207 of file qgl_win.cpp.

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

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

• /src/opengl/qgl_win.cpp
• /src/opengl/qgl_wince.cpp