Package org.jxmapviewer.viewer.empty

Class EmptyTileFactory

java.lang.Object

org.jxmapviewer.viewer.TileFactory

org.jxmapviewer.viewer.empty.EmptyTileFactory

public class EmptyTileFactory
extends TileFactory

A null implementation of TileFactory. Draws empty areas.

Constructor Summary

Constructors

Constructor	Description
EmptyTileFactory()	Creates a new instance of EmptyTileFactory
EmptyTileFactory(TileFactoryInfo info)	Creates a new instance of EmptyTileFactory using the specified info.

Method Summary

Modifier and Type	Method	Description
void	dispose()	Disposes this TileFactory
Tile	getTile(int x, int y, int zoom)	Gets an instance of an empty tile for the given tile position and zoom on the world map.
protected void	startLoading(Tile tile)	Override this method to load the tile using, for example, an ExecutorService.

Methods inherited from class org.jxmapviewer.viewer.TileFactory

addTileListener, fireTileLoadedEvent, geoToPixel, getInfo, getMapSize, getTileSize, pixelToGeo, removeTileListener, setLocalCache

Methods inherited from class java.lang.Object

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

Constructor Details

EmptyTileFactory

public EmptyTileFactory()

Creates a new instance of EmptyTileFactory

EmptyTileFactory

public EmptyTileFactory(TileFactoryInfo info)

Creates a new instance of EmptyTileFactory using the specified info.

Parameters:

info - the tile factory info

Method Details

getTile

public Tile getTile(int x, int y, int zoom)

Gets an instance of an empty tile for the given tile position and zoom on the world map.

Specified by:

getTile in class TileFactory

Parameters:

x - The tile's x position on the world map.

y - The tile's y position on the world map.

zoom - The current zoom level.

Returns:

the tile that is located at the given tilePoint for this zoom level. For example, if getMapSize() returns 10x20 for this zoom, and the tilePoint is (3,5), then the appropriate tile will be located and returned. This method must not return null. However, it can return dummy tiles that contain no data if it wants. This is appropriate, for example, for tiles which are outside of the bounds of the map and if the factory doesn't implement wrapping.

dispose

public void dispose()

Description copied from class: TileFactory

Disposes this TileFactory

Specified by:

dispose in class TileFactory

startLoading

protected void startLoading(Tile tile)

Override this method to load the tile using, for example, an ExecutorService.

Specified by:

startLoading in class TileFactory

Parameters:

tile - The tile to load.