JPEGReader Class Reference

#include <JpegReader.hxx>

Inheritance diagram for JPEGReader:

Collaboration diagram for JPEGReader:

Public Member Functions
	JPEGReader (SvStream &rStream, GraphicFilterImportFlags nImportFlags)
virtual	~JPEGReader () override
ReadState	Read (Graphic &rGraphic, GraphicFilterImportFlags nImportFlags, BitmapScopedWriteAccess *ppAccess)
bool	CreateBitmap (JPEGCreateBitmapParam const &param)
Bitmap &	GetBitmap ()
Public Member Functions inherited from GraphicReader
virtual	~GraphicReader ()
const OUString &	GetUpperFilterName () const

Private Member Functions
Graphic	CreateIntermediateGraphic (tools::Long nLines)

Private Attributes
SvStream &	mrStream
std::optional< Bitmap >	mpBitmap
std::optional< AlphaMask >	mpIncompleteAlpha
tools::Long	mnLastPos
tools::Long	mnLastLines
bool	mbSetLogSize

Additional Inherited Members
Protected Member Functions inherited from GraphicReader
	GraphicReader ()
Protected Attributes inherited from GraphicReader
OUString	maUpperName

Detailed Description

Definition at line 48 of file JpegReader.hxx.

Constructor & Destructor Documentation

JPEGReader()

JPEGReader::JPEGReader	(	SvStream &	rStream,
		GraphicFilterImportFlags	nImportFlags
	)

Definition at line 172 of file JpegReader.cxx.

References GraphicReader::maUpperName, mpBitmap, mpIncompleteAlpha, SetLogsizeForJpeg, and UseExistingBitmap.

~JPEGReader()

JPEGReader::~JPEGReader ( )

overridevirtual

Definition at line 187 of file JpegReader.cxx.

Member Function Documentation

CreateBitmap()

bool JPEGReader::CreateBitmap

(

JPEGCreateBitmapParam const &

param

)

Definition at line 191 of file JpegReader.cxx.

References JPEGCreateBitmapParam::bGray, JPEGCreateBitmapParam::density_unit, Size::Height(), OutputDevice::LogicToLogic(), mbSetLogSize, mpBitmap, n, vcl::N24_BPP, vcl::N8_BPP, JPEGCreateBitmapParam::nHeight, JPEGCreateBitmapParam::nWidth, SAL_MAX_INT32, Size::Width(), JPEGCreateBitmapParam::X_density, and JPEGCreateBitmapParam::Y_density.

Referenced by ReadJPEG().

CreateIntermediateGraphic()

Graphic JPEGReader::CreateIntermediateGraphic ( tools::Long  nLines )

private

Definition at line 245 of file JpegReader.cxx.

References COL_ALPHA_OPAQUE(), Size::Height(), mnLastLines, mpBitmap, and mpIncompleteAlpha.

Referenced by Read().

GetBitmap()

Bitmap & JPEGReader::GetBitmap ( )

inline

Definition at line 68 of file JpegReader.hxx.

References mpBitmap.

Referenced by ReadJPEG().

Read()

ReadState JPEGReader::Read	(	Graphic &	rGraphic,
		GraphicFilterImportFlags	nImportFlags,
		BitmapScopedWriteAccess *	ppAccess
	)

Definition at line 285 of file JpegReader.cxx.

References CreateIntermediateGraphic(), ERRCODE_IO_PENDING, SvStream::GetError(), JPEGREAD_ERROR, JPEGREAD_NEED_MORE, JPEGREAD_OK, mnLastPos, mpBitmap, mrStream, ReadJPEG(), SvStream::ResetError(), SvStream::Seek(), and UseExistingBitmap.

Referenced by ImportJPEG().

Member Data Documentation

mbSetLogSize

bool JPEGReader::mbSetLogSize

private

Definition at line 56 of file JpegReader.hxx.

Referenced by CreateBitmap().

mnLastLines

tools::Long JPEGReader::mnLastLines

private

Definition at line 55 of file JpegReader.hxx.

Referenced by CreateIntermediateGraphic().

mnLastPos

tools::Long JPEGReader::mnLastPos

private

Definition at line 54 of file JpegReader.hxx.

Referenced by Read().

mpBitmap

std::optional<Bitmap> JPEGReader::mpBitmap

private

Definition at line 51 of file JpegReader.hxx.

Referenced by CreateBitmap(), CreateIntermediateGraphic(), GetBitmap(), JPEGReader(), and Read().

mpIncompleteAlpha

std::optional<AlphaMask> JPEGReader::mpIncompleteAlpha

private

Definition at line 52 of file JpegReader.hxx.

Referenced by CreateIntermediateGraphic(), and JPEGReader().

mrStream

SvStream& JPEGReader::mrStream

private

Definition at line 50 of file JpegReader.hxx.

Referenced by Read().

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

• JpegReader.hxx
• JpegReader.cxx