osmscout::TileCache Class Reference

#include <libosmscout-client-qt/include/osmscout/TileCache.h>

Inheritance diagram for osmscout::TileCache:

Collaboration diagram for osmscout::TileCache:

Signals
void	tileRequested (uint32_t zoomLevel, uint32_t x, uint32_t y)

Public Member Functions
	TileCache (size_t cacheSize)
	~TileCache () override
void	clearPendingRequests ()
bool	startRequestProcess (uint32_t zoomLevel, uint32_t x, uint32_t y)
void	mergeAndStartRequests (uint32_t zoomLevel, uint32_t xtile, uint32_t ytile, uint32_t &xFrom, uint32_t &xTo, uint32_t &yFrom, uint32_t &yTo, uint32_t maxWidth, uint32_t maxHeight)
bool	isRequestQueueEmpty () const
bool	request (uint32_t zoomLevel, uint32_t x, uint32_t y)
bool	reemitRequests ()
bool	contains (uint32_t zoomLevel, uint32_t x, uint32_t y)
bool	containsRequest (uint32_t zoomLevel, uint32_t x, uint32_t y)
TileCacheVal	get (uint32_t zoomLevel, uint32_t x, uint32_t y)
bool	invalidate (osmscout::GeoBox box=osmscout::GeoBox())
bool	removeRequest (uint32_t zoomLevel, uint32_t x, uint32_t y)
void	put (uint32_t zoomLevel, uint32_t x, uint32_t y, QImage image, size_t epoch=0)
void	cleanupCache ()
size_t	getEpoch () const
void	incEpoch ()

Detailed Description

Cache have to be locked by its mutex() while access. It owns all inserted tiles and it is responsible for its release

Constructor & Destructor Documentation

TileCache()

osmscout::TileCache::TileCache

(

size_t

cacheSize

)

~TileCache()

osmscout::TileCache::~TileCache ( )

override

Member Function Documentation

cleanupCache()

void osmscout::TileCache::cleanupCache

(

)

clearPendingRequests()

void osmscout::TileCache::clearPendingRequests

(

)

remove all pending requests TODO: in case of multiple map widgets, add some id to avoid removing requests of another widget

contains()

bool osmscout::TileCache::contains	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

containsRequest()

bool osmscout::TileCache::containsRequest	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

get()

TileCacheVal osmscout::TileCache::get	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

getEpoch()

size_t osmscout::TileCache::getEpoch ( ) const

inline

incEpoch()

void osmscout::TileCache::incEpoch ( )

inline

invalidate()

bool osmscout::TileCache::invalidate

(

osmscout::GeoBox

box = osmscout::GeoBox()

)

Parameters

box

Returns

isRequestQueueEmpty()

bool osmscout::TileCache::isRequestQueueEmpty

(

)

const

mergeAndStartRequests()

void osmscout::TileCache::mergeAndStartRequests	(	uint32_t	zoomLevel,
		uint32_t	xtile,
		uint32_t	ytile,
		uint32_t &	xFrom,
		uint32_t &	xTo,
		uint32_t &	yFrom,
		uint32_t &	yTo,
		uint32_t	maxWidth,
		uint32_t	maxHeight
	)

put()

void osmscout::TileCache::put	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y,
		QImage	image,
		size_t	epoch = 0
	)

reemitRequests()

bool osmscout::TileCache::reemitRequests

(

)

trigger request signal for all pending requests

removeRequest()

bool osmscout::TileCache::removeRequest	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

Remove pending request

Parameters

zoomLevel
x
y

Returns

true if there was such request

request()

bool osmscout::TileCache::request	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

try to create new tile request. If this request don't exists already, it emit signal tileRequested and return true. Otherwise false.

startRequestProcess()

bool osmscout::TileCache::startRequestProcess	(	uint32_t	zoomLevel,
		uint32_t	x,
		uint32_t	y
	)

tileRequested

void osmscout::TileCache::tileRequested ( uint32_t  zoomLevel, uint32_t  x, uint32_t  y  )

signal

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

• libosmscout-client-qt/include/osmscout/TileCache.h