QMngHandler Class Reference

#include <qmnghandler_p.h>

Inheritance diagram for QMngHandler:

Public Functions
virtual bool	canRead () const
	Reimplemented Function More...
virtual int	currentImageNumber () const
	Reimplemented Function More...
virtual int	imageCount () const
	Reimplemented Function More...
virtual bool	jumpToImage (int imageNumber)
	Reimplemented Function More...
virtual bool	jumpToNextImage ()
	Reimplemented Function More...
virtual int	loopCount () const
	Reimplemented Function More...
virtual QByteArray	name () const
	Reimplemented Function More...
virtual int	nextImageDelay () const
	Reimplemented Function More...
virtual QVariant	option (ImageOption option) const
	Reimplemented Function More...
	QMngHandler ()
virtual bool	read (QImage *image)
	Reimplemented Function More...
virtual void	setOption (ImageOption option, const QVariant &value)
	Reimplemented Function More...
virtual bool	supportsOption (ImageOption option) const
	Reimplemented Function More...
virtual bool	write (const QImage &image)
	Reimplemented Function More...
	~QMngHandler ()
Public Functions inherited from QImageIOHandler
virtual QRect	currentImageRect () const
	Returns the rect of the current image. More...
QIODevice *	device () const
	Returns the device currently assigned to the QImageIOHandler. More...
QByteArray	format () const
	Returns the format that is currently assigned to QImageIOHandler. More...
	QImageIOHandler ()
	Constructs a QImageIOHandler object. More...
void	setDevice (QIODevice *device)
	Sets the device of the QImageIOHandler to device. More...
void	setFormat (const QByteArray &format)
	Sets the format of the QImageIOHandler to format. More...
void	setFormat (const QByteArray &format) const
	Sets the format of the QImageIOHandler to format. More...
virtual	~QImageIOHandler ()
	Destructs the QImageIOHandler object. More...

Static Public Functions
static bool	canRead (QIODevice *device)

Properties
QScopedPointer< QMngHandlerPrivate >	d_ptr

Additional Inherited Members
Public Types inherited from QImageIOHandler
enum	ImageOption {   Size, ClipRect, Description, ScaledClipRect,   ScaledSize, CompressionRatio, Gamma, Quality,   Name, SubType, IncrementalReading, Endianness,   Animation, BackgroundColor, ImageFormat }
	This enum describes the different options supported by QImageIOHandler. More...
Protected Functions inherited from QImageIOHandler
	QImageIOHandler (QImageIOHandlerPrivate &dd)
	Constructs a QImageIOHandler object, using the private member dd. More...
Protected Variables inherited from QImageIOHandler
QScopedPointer< QImageIOHandlerPrivate >	d_ptr

Detailed Description

Definition at line 56 of file qmnghandler_p.h.

Constructors and Destructors

QMngHandler()

QMngHandler::QMngHandler

(

)

Definition at line 378 of file qmnghandler.cpp.

    : d_ptr(new QMngHandlerPrivate(this))
{
}

~QMngHandler()

QMngHandler::~QMngHandler

(

)

Definition at line 383 of file qmnghandler.cpp.

{
}

Functions

canRead() [1/2]

bool QMngHandler::canRead ( ) const

virtual

Reimplemented Function

Implements QImageIOHandler.

Definition at line 388 of file qmnghandler.cpp.

Referenced by QMngPlugin::capabilities(), createReadHandlerHelper(), and read().

{
    Q_D(const QMngHandler);
    if ((!d->haveReadNone
         && (!d->haveReadAll || (d->haveReadAll && (d->nextIndex < d->frameCount))))
        || canRead(device()))
    {
        setFormat("mng");
        return true;
    }
    return false;
}

canRead() [2/2]

bool QMngHandler::canRead ( QIODevice *  device )

static

Warning

This function is not part of the public interface.

Definition at line 402 of file qmnghandler.cpp.

{
    if (!device) {
        qWarning("QMngHandler::canRead() called with no device");
        return false;
    }

    return device->peek(8) == "\x8A\x4D\x4E\x47\x0D\x0A\x1A\x0A";
}

currentImageNumber()

int QMngHandler::currentImageNumber ( ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 433 of file qmnghandler.cpp.

{
    Q_D(const QMngHandler);
    return d->currentImageNumber();
}

imageCount()

int QMngHandler::imageCount ( ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 440 of file qmnghandler.cpp.

{
    Q_D(const QMngHandler);
    return d->imageCount();
}

jumpToImage()

bool QMngHandler::jumpToImage ( int  imageNumber )

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 447 of file qmnghandler.cpp.

{
    Q_D(QMngHandler);
    return d->jumpToImage(imageNumber);
}

jumpToNextImage()

bool QMngHandler::jumpToNextImage ( )

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 454 of file qmnghandler.cpp.

{
    Q_D(QMngHandler);
    return d->jumpToNextImage();
}

loopCount()

int QMngHandler::loopCount ( ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 461 of file qmnghandler.cpp.

{
    Q_D(const QMngHandler);
    if (d->iterCount == 0x7FFFFFFF)
        return -1; // infinite loop
    return d->iterCount-1;
}

name()

QByteArray QMngHandler::name ( ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 413 of file qmnghandler.cpp.

{
    return "mng";    
}

nextImageDelay()

int QMngHandler::nextImageDelay ( ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 470 of file qmnghandler.cpp.

{
    Q_D(const QMngHandler);
    return d->nextImageDelay();
}

option()

QVariant QMngHandler::option ( ImageOption  option ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 477 of file qmnghandler.cpp.

{
    Q_D(const QMngHandler);
    if (option == QImageIOHandler::Animation)
        return true;
    else if (option == QImageIOHandler::BackgroundColor)
        return d->backgroundColor();
    return QVariant();
}

read()

bool QMngHandler::read ( QImage *  image )

virtual

Reimplemented Function

Implements QImageIOHandler.

Definition at line 419 of file qmnghandler.cpp.

{
    Q_D(QMngHandler);
    return canRead() ? d->getNextImage(image) : false;
}

setOption()

void QMngHandler::setOption ( ImageOption  option, const QVariant &  value  )

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 488 of file qmnghandler.cpp.

{
    Q_D(QMngHandler);
    if (option == QImageIOHandler::BackgroundColor)
        d->setBackgroundColor(qvariant_cast<QColor>(value));
}

supportsOption()

bool QMngHandler::supportsOption ( ImageOption  option ) const

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 496 of file qmnghandler.cpp.

{
    if (option == QImageIOHandler::Animation)
        return true;
    else if (option == QImageIOHandler::BackgroundColor)
        return true;
    return false;
}

write()

bool QMngHandler::write ( const QImage &  image )

virtual

Reimplemented Function

Reimplemented from QImageIOHandler.

Definition at line 426 of file qmnghandler.cpp.

{
    Q_D(QMngHandler);
    return d->writeImage(image);
}

Properties

d_ptr

QScopedPointer<QMngHandlerPrivate> QMngHandler::d_ptr

private

Definition at line 78 of file qmnghandler_p.h.

---

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

• /src/gui/image/qmnghandler_p.h
• /src/gui/image/qmnghandler.cpp