org.mapsforge.map.layer

Class TileLayer<T extends Job>

java.lang.Object

org.mapsforge.map.layer.Layer

org.mapsforge.map.layer.TileLayer<T>

Direct Known Subclasses:

TileDownloadLayer, TileRendererLayer, TileStoreLayer

public abstract class TileLayer<T extends Job>
extends Layer

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	hasJobQueue
protected boolean	isTransparent
protected JobQueue<T>	jobQueue
protected TileCache	tileCache

Fields inherited from class org.mapsforge.map.layer.Layer

displayModel

Constructor Summary

Constructors

Constructor and Description
TileLayer(TileCache tileCache, MapViewPosition mapViewPosition, Matrix matrix, boolean isTransparent)
TileLayer(TileCache tileCache, MapViewPosition mapViewPosition, Matrix matrix, boolean isTransparent, boolean hasJobQueue)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract T	createJob(Tile tile)
void	draw(BoundingBox boundingBox, byte zoomLevel, Canvas canvas, Point topLeftPoint) Draws this Layer on the given canvas.
protected void	retrieveLabelsOnly(T job)
void	setDisplayModel(DisplayModel displayModel) The DisplayModel comes from a MapView, so is generally not known when the layer itself is created.

Methods inherited from class org.mapsforge.map.layer.Layer

getPosition, isVisible, onAdd, onDestroy, onLongPress, onRemove, onTap, requestRedraw, setVisible

Methods inherited from class java.lang.Object

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

Field Detail

hasJobQueue

protected final boolean hasJobQueue

isTransparent

protected final boolean isTransparent

jobQueue

protected JobQueue<T extends Job> jobQueue

tileCache

protected final TileCache tileCache

Constructor Detail

TileLayer

public TileLayer(TileCache tileCache,
         MapViewPosition mapViewPosition,
         Matrix matrix,
         boolean isTransparent)

TileLayer

public TileLayer(TileCache tileCache,
         MapViewPosition mapViewPosition,
         Matrix matrix,
         boolean isTransparent,
         boolean hasJobQueue)

Method Detail

draw

public void draw(BoundingBox boundingBox,
        byte zoomLevel,
        Canvas canvas,
        Point topLeftPoint)

Description copied from class: Layer

Draws this Layer on the given canvas.

Specified by:

draw in class Layer

Parameters:

boundingBox - the geographical area which should be drawn.

zoomLevel - the zoom level at which this Layer should draw itself.

canvas - the canvas on which this Layer should draw itself.

topLeftPoint - the top-left pixel position of the canvas relative to the top-left map position.

setDisplayModel

public void setDisplayModel(DisplayModel displayModel)

Description copied from class: Layer

The DisplayModel comes from a MapView, so is generally not known when the layer itself is created. Maybe a better way would be to have a MapView as a parameter when creating a layer.

Overrides:

setDisplayModel in class Layer

Parameters:

displayModel - the displayModel to use.

createJob

protected abstract T createJob(Tile tile)

retrieveLabelsOnly

protected void retrieveLabelsOnly(T job)