org.oscim.layers.tile

Class TileManager

java.lang.Object

org.oscim.layers.tile.TileManager

public class TileManager
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	TileManager.Listener

Field Summary

Fields

Modifier and Type	Field and Description
EventDispatcher<TileManager.Listener,MapTile>	events
static Event	TILE_LOADED
static Event	TILE_REMOVED

Constructor Summary

Constructors

Constructor and Description
TileManager(Map map, int cacheLimit)

Method Summary

Modifier and Type	Method and Description
void	addZoomLimit(int zoomLimit) Allow loading tiles at specified zoom if higher zoom levels are requested.
void	clearJobs()
boolean	getActiveTiles(TileSet tileSet) Retrieve a TileSet of current tiles.
MapTile	getTile(int tileX, int tileY, byte zoomLevel)
MapTile	getTile(int x, int y, int z)
MapTile	getTileJob()
boolean	hasTileJobs()
void	init()
void	jobCompleted(MapTile tile, QueryResult result) Called by TileLoader thread when tile is loaded.
void	removeZoomLimit(int zoomLimit) Remove zoom limit.
void	setZoomLevel(int zoomLevelMin, int zoomLevelMax)
void	setZoomTable(int[] zoomTable)
void	setZoomThresholds(float down, float up) TESTING: avoid flickering when switching zoom-levels: 1.85, 1.15 seems to work well
boolean	update(MapPosition pos) 1.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TILE_LOADED

public static final Event TILE_LOADED

TILE_REMOVED

public static final Event TILE_REMOVED

events

public final EventDispatcher<TileManager.Listener,MapTile> events

Constructor Detail

TileManager

public TileManager(Map map,
                   int cacheLimit)

Method Detail

setZoomTable

public void setZoomTable(int[] zoomTable)

setZoomThresholds

public void setZoomThresholds(float down,
                              float up)

TESTING: avoid flickering when switching zoom-levels: 1.85, 1.15 seems to work well

getTile

public MapTile getTile(int x,
                       int y,
                       int z)

init

public void init()

update

public boolean update(MapPosition pos)

1. Update mCurrentTiles TileSet of currently visible tiles. 2. Add not yet loaded (or loading) tiles to JobQueue. 3. Manage cache

Parameters:

pos - current MapPosition

clearJobs

public void clearJobs()

hasTileJobs

public boolean hasTileJobs()

getTileJob

public MapTile getTileJob()

getActiveTiles

public boolean getActiveTiles(TileSet tileSet)

Retrieve a TileSet of current tiles. Tiles remain locked in cache until the set is unlocked by either passing it again to this function or to releaseTiles.

Parameters:

tileSet - to be updated

Returns:

true if TileSet has changed

jobCompleted

public void jobCompleted(MapTile tile,
                         QueryResult result)

Called by TileLoader thread when tile is loaded.

Parameters:

tile - Tile ready for upload in TileRenderLayer

getTile

public MapTile getTile(int tileX,
                       int tileY,
                       byte zoomLevel)

setZoomLevel

public void setZoomLevel(int zoomLevelMin,
                         int zoomLevelMax)

addZoomLimit

public void addZoomLimit(int zoomLimit)

Allow loading tiles at specified zoom if higher zoom levels are requested.

removeZoomLimit

public void removeZoomLimit(int zoomLimit)

Remove zoom limit. Tiles of that zoom level won't be requested anymore on higher zoom levels.