de.fhpotsdam.unfolding.tiles
Class TileLoader

java.lang.Object
  de.fhpotsdam.unfolding.tiles.TileLoader

All Implemented Interfaces:

java.lang.Runnable

public class TileLoader
extends java.lang.Object
implements java.lang.Runnable

Loads tiles from the MapProvider. Will be used in a background thread. Two kinds of MapProviders are supported:

• AbstractMapTileProvider returning a tile image, directly.
• AbstractMapTileUrlProvider returning an URL from which this TileLoader loads the tile from.

Tile organization is handled in AbstractMapDisplay (caching) and Java2DMapDisplay (rendering).

Field Summary

protected Coordinate	coordinate The actual coordinates of the tile to load.
protected TileLoaderListener	listener The listener to call method after tile has been loaded.
protected processing.core.PApplet	p The parent applet.
protected AbstractMapProvider	provider The tile provider.
boolean	showDebugBorder Shows coordinate information for tile, i.e.
boolean	showTileCoordinates

Constructor Summary

TileLoader(processing.core.PApplet p, AbstractMapProvider provider, TileLoaderListener listener, Coordinate coordinate)

Method Summary

protected processing.core.PImage	getTileFromUrl(java.lang.String[] urls) Loads tile from URL(s) by using Processing's loadImage function.
void	run() Gets tile from provider, and calls TileLoaderListener.tileLoaded(Coordinate, Object) afterwards.
void	showDebugBorder()
void	showTileCoordinates()

Methods inherited from class java.lang.Object

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

Field Detail

showDebugBorder

public boolean showDebugBorder

Shows coordinate information for tile, i.e. placed atop original tile image.

showTileCoordinates

public boolean showTileCoordinates

p

protected processing.core.PApplet p

The parent applet.

provider

protected AbstractMapProvider provider

The tile provider.

listener

protected TileLoaderListener listener

The listener to call method after tile has been loaded.

coordinate

protected Coordinate coordinate

The actual coordinates of the tile to load.

Constructor Detail

TileLoader

public TileLoader(processing.core.PApplet p,
                  AbstractMapProvider provider,
                  TileLoaderListener listener,
                  Coordinate coordinate)

Method Detail

run

public void run()

Gets tile from provider, and calls TileLoaderListener.tileLoaded(Coordinate, Object) afterwards.

Specified by:

run in interface java.lang.Runnable

getTileFromUrl

protected processing.core.PImage getTileFromUrl(java.lang.String[] urls)

Loads tile from URL(s) by using Processing's loadImage function. If multiple URLs are provided, all tile images are blended into each other.

Parameters:

urls - The URLs (local or remote) to load the tiles from.

Returns:

The tile image.

showDebugBorder

public void showDebugBorder()

showTileCoordinates

public void showTileCoordinates()