QVolatileImageData Class Reference

#include <qvolatileimagedata_p.h>

Inheritance diagram for QVolatileImageData:

Public Functions
void	beginDataAccess () const
void *	duplicateNativeImage () const
void	endDataAccess (bool readOnly=false) const
bool	ensureFormat (QImage::Format format)
void	ensureImage ()
	QVolatileImageData ()
	QVolatileImageData (int w, int h, QImage::Format format)
	QVolatileImageData (const QImage &sourceImage)
	QVolatileImageData (void *nativeImage, void *nativeMask)
	QVolatileImageData (const QVolatileImageData &other)
	~QVolatileImageData ()
Public Functions inherited from QSharedData
	QSharedData ()
	Constructs a QSharedData object with a reference count of 0. More...
	QSharedData (const QSharedData &)
	Constructs a QSharedData object with reference count 0. More...

Public Variables
QImage	image
QPaintEngine *	pengine
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Definition at line 65 of file qvolatileimagedata_p.h.

Constructors and Destructors

QVolatileImageData() [1/5]

QVolatileImageData::QVolatileImageData

(

)

Definition at line 47 of file qvolatileimagedata.cpp.

    : pengine(0)
{
}

QVolatileImageData() [2/5]

QVolatileImageData::QVolatileImageData	(	int	w,
		int	h,
		QImage::Format	format
	)

Definition at line 52 of file qvolatileimagedata.cpp.

    : pengine(0)
{
    image = QImage(w, h, format);
}

QVolatileImageData() [3/5]

QVolatileImageData::QVolatileImageData

(

const QImage &

sourceImage

)

Definition at line 58 of file qvolatileimagedata.cpp.

    : pengine(0)
{
    image = sourceImage;
}

QVolatileImageData() [4/5]

QVolatileImageData::QVolatileImageData	(	void *	nativeImage,
		void *	nativeMask
	)

Definition at line 64 of file qvolatileimagedata.cpp.

    : pengine(0)
{
    // Not supported.
}

QVolatileImageData() [5/5]

QVolatileImageData::QVolatileImageData

(

const QVolatileImageData &

other

)

Definition at line 70 of file qvolatileimagedata.cpp.

    : QSharedData()
{
    image = other.image;
    // The detach is not mandatory here but we do it nonetheless in order to
    // keep the behavior consistent with other platforms.
    image.detach();
    pengine = 0;
}

~QVolatileImageData()

QVolatileImageData::~QVolatileImageData

(

)

Definition at line 80 of file qvolatileimagedata.cpp.

{
    delete pengine;
}

Functions

beginDataAccess()

void QVolatileImageData::beginDataAccess

(

)

const

Definition at line 85 of file qvolatileimagedata.cpp.

Referenced by QVolatileImage::beginDataAccess(), and QVolatileImage::toImage().

{
    // nothing to do here
}

duplicateNativeImage()

void * QVolatileImageData::duplicateNativeImage

(

)

const

Definition at line 104 of file qvolatileimagedata.cpp.

Referenced by QVolatileImage::duplicateNativeImage().

{
    return 0;
}

endDataAccess()

void QVolatileImageData::endDataAccess

(

bool

readOnly = false

)

const

Definition at line 90 of file qvolatileimagedata.cpp.

Referenced by QVolatileImage::endDataAccess(), and QVolatileImage::toImage().

{
    Q_UNUSED(readOnly);
    // nothing to do here
}

ensureFormat()

bool QVolatileImageData::ensureFormat

(

QImage::Format

format

)

Definition at line 96 of file qvolatileimagedata.cpp.

Referenced by QVolatileImage::ensureFormat().

{
    if (image.format() != format) {
        image = image.convertToFormat(format);
    }
    return true;
}

ensureImage()

void QVolatileImageData::ensureImage

(

)

Definition at line 109 of file qvolatileimagedata.cpp.

Referenced by QVolatileImage::fill(), QVolatileImage::imageRef(), and QVolatileImage::setAlphaChannel().

{
    // nothing to do here
}

Properties

image

QImage QVolatileImageData::image

Definition at line 91 of file qvolatileimagedata_p.h.

Referenced by QVolatileImage::bits(), QVolatileImage::byteCount(), QVolatileImage::bytesPerLine(), QVolatileImage::constBits(), QVolatileImage::constImageRef(), QVolatileImage::depth(), ensureFormat(), QVolatileImage::format(), QVolatileImage::hasAlphaChannel(), QVolatileImage::height(), QVolatileImage::imageRef(), QVolatileImage::isNull(), QVolatileImageData(), QVolatileImage::toImage(), and QVolatileImage::width().

pengine

QPaintEngine* QVolatileImageData::pengine

Definition at line 92 of file qvolatileimagedata_p.h.

Referenced by QVolatileImage::paintEngine(), QVolatileImage::paintingActive(), QVolatileImageData(), and ~QVolatileImageData().

---

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

• /src/gui/image/qvolatileimagedata_p.h
• /src/gui/image/qvolatileimagedata.cpp