IlvWBMPStreamer Class Reference

Bitmap streamer class. More...

#include <ilviews/bitmaps/wbmp.h>

Inheritance diagram for IlvWBMPStreamer:

Public Member Functions
	IlvWBMPStreamer ()
	Constructor.
IlBoolean	canRead () const
	Indicates that the instance can read from a stream. More...
IlBoolean	canWrite () const
	Indicates that the instance can write to a stream. More...
IlBoolean	checkSignature (const IlUChar *data, IlUInt size)
	Checks the signature of the input stream. More...
IlBoolean	isWhiteTransparent () const
	Gets whether white is treated as a transparent color when reading. More...
IlvBitmapData *	read (ILVSTDPREF istream &stream)
	Reads a WBMP image from a stream. More...
void	setWhiteTransparent (IlBoolean transp)
	Sets whether white is treated as a transparent color when reading. More...
IlBoolean	write (IlvBitmapData *data, IL_STDPREF ostream &stream)
	Writes an IlvBitmapData to a WBMP stream. More...
Public Member Functions inherited from IlvBitmapStreamer
virtual void	callReadProgressCallback (IlUInt current, IlUInt max)
	Calls the callback for read progression. More...
virtual void	callWriteProgressCallback (IlUInt current, IlUInt max)
	Calls the callback for write progression. More...
virtual const char *	getName () const
	Returns the internal name of the streamer. More...
IlvQuantizer *	getQuantizer () const
	Returns the quantizer used by this streamer. More...
virtual IlvBitmapData *	read (std::istream &stream)
	Reads from a stream. More...
virtual IlvBitmapInformation *	readInfo (std::istream &stream)
	Reads information from a stream. More...
void	setQuantizer (IlvQuantizer *quantizer)
	Sets the quantizer used (if needed) by this streamer. More...
virtual void	setReadProgressCallback (IlvProgressCallback rpCallback, IlAny arg=0)
	Sets the callback for read progression. More...
virtual void	setWriteProgressCallback (IlvProgressCallback wpCallback, IlAny arg=0)
	Sets the callback for write progression. More...
virtual IlBoolean	write (IlvBitmapData *bitmapData, std::ostream &stream)
	Writes an IlvBitmapData to a stream. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvBitmapStreamer
static IlvBitmapStreamer *	Get (const char *name)
	Returns a streamer from its name. More...
static IlvBitmapStreamer **	GetRegisteredStreamers (IlUInt &count)
	Returns the registered streamers. More...
static IlvBitmap *	Read (IlvDisplay *display, std::istream &stream, const IlUChar *signature, IlUInt signatureLen)
	Reads a bitmap using the registered streamers. More...
static IlvBitmapData *	ReadBitmapData (std::istream &stream, const IlUChar *signature, IlUInt signatureLen)
	Reads bitmap data using the registered streamers. More...
static IlvBitmapInformation *	ReadInfo (std::istream &stream, const IlUChar *signature, IlUInt signatureLen)
	Reads bitmap information using the registered streamers. More...
static void	Register (IlvBitmapStreamer *streamer)
	Registers the given streamer. More...
static IlBoolean	UnRegister (IlvBitmapStreamer *streamer)
	Unregisters the given streamer. More...

Detailed Description

Bitmap streamer class.

Library: xviews or winviews or mviews (mutually exclusive)

This streamer provides methods to deal with a stream containing a WBMP image. It supports reading from type 0 images.
This streamer can read and write.
When reading or writing, callbacks will be called at each scanline.

Member Function Documentation

IlBoolean IlvWBMPStreamer::canRead ( ) const

virtual

Indicates that the instance can read from a stream.

Returns

IlTrue.

Reimplemented from IlvBitmapStreamer.

IlBoolean IlvWBMPStreamer::canWrite ( ) const

virtual

Indicates that the instance can write to a stream.

Returns

IlTrue.

Reimplemented from IlvBitmapStreamer.

IlBoolean IlvWBMPStreamer::checkSignature ( const IlUChar *  data, IlUInt  size  )

virtual

Checks the signature of the input stream.

Parameters

data	The data containing the signature of the stream.
size	The size of the data containing the signature.

Returns

IlTrue if the data contains a WBMP signature.

Implements IlvBitmapStreamer.

IlBoolean IlvWBMPStreamer::isWhiteTransparent

(

)

const

Gets whether white is treated as a transparent color when reading.

Returns

IlTrue if white is transparent.

IlvBitmapData* IlvWBMPStreamer::read

(

ILVSTDPREF istream &

stream

)

Reads a WBMP image from a stream.

Parameters

stream

The stream to read from.

Returns

An instance of IlvBitmapData.

void IlvWBMPStreamer::setWhiteTransparent

(

IlBoolean

transp

)

Sets whether white is treated as a transparent color when reading.

Parameters

transp

IlTrue if white is transparent.

IlBoolean IlvWBMPStreamer::write	(	IlvBitmapData *	data,
		IL_STDPREF ostream &	stream
	)

Writes an IlvBitmapData to a WBMP stream.

Parameters

data	The bitmap data to write.
stream	The stream to write to.

Returns

IlTrue if the bitmap data has been written.