ome::files::TileCache Class Reference

Tile cache. More...

#include <ome/files/TileCache.h>

Collaboration diagram for ome::files::TileCache:

Public Types
typedef dimension_size_type	key_type
	Tile index type.
typedef std::shared_ptr< TileBuffer >	value_type
	Tile buffer type.

Public Member Functions
	TileCache ()
	Constructor.
virtual	~TileCache ()
	Destructor.
SKIP bool	insert (key_type tileindex, value_type tilebuffer)
	Insert a tile into the tile cache. More...
void	erase (key_type tileindex)
	Remove a tile from the tile cache. More...
value_type	find (key_type tileindex)
	Find a tile in the tile cache. More...
const value_type	find (key_type tileindex) const
	Find a tile in the tile cache. More...
dimension_size_type	size () const
	Get the tile cache size. More...
void	clear ()
	Clear the tile cache.
value_type &	operator[] (key_type tileindex)
	Get a tile from the tile cache. More...

Private Attributes
std::map< key_type, value_type >	cache
	Mapping of tile number to tile buffer.

Detailed Description

Tile cache.

This is a collection of TileBuffer objects indexed by tile number.

Member Function Documentation

erase()

void ome::files::TileCache::erase

(

key_type

tileindex

)

Remove a tile from the tile cache.

Parameters

tileindex

the tile to remove.

References cache.

find() [1/2]

TileCache::value_type ome::files::TileCache::find

(

key_type

tileindex

)

Find a tile in the tile cache.

Parameters

tileindex

the tile index to find.

Returns

the tile buffer corresponding to the specified index. If the tile index was not found, this will be null.

References cache.

find() [2/2]

const TileCache::value_type ome::files::TileCache::find

(

key_type

tileindex

)

const

Find a tile in the tile cache.

Parameters

tileindex

the tile index to find.

Returns

the tile buffer corresponding to the specified tile index. If the tile index was not found, this will be null.

References cache.

insert()

bool ome::files::TileCache::insert	(	key_type	tileindex,
		value_type	tilebuffer
	)

Insert a tile into the tile cache.

The tile index must not already be present in the tile cache. If it is already present, the insert will fail.

The tilebuffer must not be null. If the tilebuffer is null the insert will fail.

Parameters

tileindex	the tile index of the tile buffer.
tilebuffer	the buffered tile pixel data.

Returns

true if the insert succeeded, false otherwise.

References cache.

operator[]()

TileCache::value_type & ome::files::TileCache::operator[]

(

key_type

tileindex

)

Get a tile from the tile cache.

If the tile index is not found, it will be inserted into the cache with a null tile buffer; since this is returned by reference it may be assigned a new tile buffer directly.

Parameters

tileindex

the tile index to get.

Returns

the tile buffer corresponding to the specified tile index. If the tile index was not found, this will be null.

References cache.

size()

dimension_size_type ome::files::TileCache::size

(

)

const

Get the tile cache size.

Returns

the tile cache size.

References cache.

---

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

• ome/files/TileCache.h
• ome/files/TileCache.cpp