SkStreamSeekable Class Reference

#include <SkStream.h>

Inheritance diagram for SkStreamSeekable:

Public Member Functions
std::unique_ptr< SkStreamSeekable >	duplicate () const
bool	hasPosition () const override
size_t	getPosition () const override=0
bool	seek (size_t position) override=0
bool	move (long offset) override=0
std::unique_ptr< SkStreamSeekable >	fork () const
Public Member Functions inherited from SkStreamRewindable
bool	rewind () override=0
std::unique_ptr< SkStreamRewindable >	duplicate () const
Public Member Functions inherited from SkStream
virtual	~SkStream ()
	SkStream ()
virtual size_t	read (void *buffer, size_t size)=0
size_t	skip (size_t size)
virtual size_t	peek (void *, size_t) const
virtual bool	isAtEnd () const =0
bool	readS8 (int8_t *)
bool	readS16 (int16_t *)
bool	readS32 (int32_t *)
bool	readU8 (uint8_t *i)
bool	readU16 (uint16_t *i)
bool	readU32 (uint32_t *i)
bool	readBool (bool *b)
bool	readScalar (SkScalar *)
bool	readPackedUInt (size_t *)
std::unique_ptr< SkStream >	duplicate () const
std::unique_ptr< SkStream >	fork () const
virtual bool	hasLength () const
virtual size_t	getLength () const
virtual const void *	getMemoryBase ()
virtual sk_sp< SkData >	getData () const

Private Member Functions
SkStreamSeekable *	onDuplicate () const override=0
SkStreamSeekable *	onFork () const override=0

Additional Inherited Members
Static Public Member Functions inherited from SkStream
static std::unique_ptr< SkStreamAsset >	MakeFromFile (const char path[])

Detailed Description

SkStreamSeekable is a SkStreamRewindable for which position, seek, move, and fork are required.

Definition at line 166 of file SkStream.h.

Member Function Documentation

duplicate()

std::unique_ptr< SkStreamSeekable > SkStreamSeekable::duplicate ( ) const

inline

Definition at line 168 of file SkStream.h.

                                                      {
        return std::unique_ptr<SkStreamSeekable>(this->onDuplicate());
    }

fork()

std::unique_ptr< SkStreamSeekable > SkStreamSeekable::fork ( ) const

inline

Definition at line 177 of file SkStream.h.

                                                 {
        return std::unique_ptr<SkStreamSeekable>(this->onFork());
    }

getPosition()

size_t SkStreamSeekable::getPosition ( ) const

overridepure virtual

Returns the current position in the stream. If this cannot be done, returns 0.

Reimplemented from SkStream.

Implemented in SkFILEStream, SkMemoryStream, SkBlockMemoryStream, and SkDWriteFontFileStream.

hasPosition()

bool SkStreamSeekable::hasPosition ( ) const

inlineoverridevirtual

Returns true if this stream can report its current position.

Reimplemented from SkStream.

Definition at line 172 of file SkStream.h.

{ return true; }

move()

bool SkStreamSeekable::move ( long  )

overridepure virtual

Seeks to an relative offset in the stream. If this cannot be done, returns false. If an attempt is made to move to a position outside the stream, the position will be set to the closest point within the stream (beginning or end).

Reimplemented from SkStream.

Implemented in SkFILEStream, SkMemoryStream, SkBlockMemoryStream, and SkDWriteFontFileStream.

onDuplicate()

SkStreamSeekable * SkStreamSeekable::onDuplicate ( ) const

overrideprivatepure virtual

Implements SkStreamRewindable.

Implemented in SkFILEStream, SkMemoryStream, SkBlockMemoryStream, SkDWriteFontFileStream, SkStreamAsset, and SkStreamMemory.

onFork()

SkStreamSeekable * SkStreamSeekable::onFork ( ) const

overrideprivatepure virtual

Reimplemented from SkStream.

Implemented in SkFILEStream, SkMemoryStream, SkBlockMemoryStream, SkDWriteFontFileStream, SkStreamAsset, and SkStreamMemory.

seek()

bool SkStreamSeekable::seek ( size_t  )

overridepure virtual

Seeks to an absolute position in the stream. If this cannot be done, returns false. If an attempt is made to seek past the end of the stream, the position will be set to the end of the stream.

Reimplemented from SkStream.

Implemented in SkFILEStream, SkMemoryStream, SkBlockMemoryStream, and SkDWriteFontFileStream.

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

• third_party/skia/include/core/SkStream.h