org.mapfish.print.map.geotools.grid

Class GridLayer

java.lang.Object

org.mapfish.print.map.geotools.grid.GridLayer

All Implemented Interfaces:

MapLayer

public final class GridLayer
extends java.lang.Object
implements MapLayer

A layer which is a spatial grid of lines on the map.

Nested Class Summary

Nested classes/interfaces inherited from interface org.mapfish.print.attribute.map.MapLayer

MapLayer.RenderType

Constructor Summary

Constructors

Constructor and Description
GridLayer(java.util.concurrent.ExecutorService executorService, FeatureSourceSupplier featureSourceSupplier, StyleSupplier<org.geotools.data.FeatureSource> styleSupplier, boolean renderAsSvg, GridParam params, org.mapfish.print.map.geotools.grid.LabelPositionCollector labels) Constructor.

Method Summary

Modifier and Type	Method and Description
void	cacheResources(HttpRequestCache httpRequestCache, MfClientHttpRequestFactory clientHttpRequestFactory, MapfishMapContext transformer) Cache any needed resources on disk.
double	getImageBufferScaling() Get the scale ratio between the tiles resolution and the target resolution.
java.lang.String	getName() The layer name.
MapLayer.RenderType	getRenderType() Specify whether layer should be rendered as PNG, JPEG or SVG.
void	prepareRender(MapfishMapContext transformer) Render the layer to the graphics2D object.
void	render(java.awt.Graphics2D graphics, MfClientHttpRequestFactory clientHttpRequestFactory, MapfishMapContext transformer) Render the layer to the graphics2D object.
boolean	supportsNativeRotation() Indicate if the layer supports native rotation (e.g.
com.google.common.base.Optional<MapLayer>	tryAddLayer(MapLayer newLayer) Attempt to add the layer this layer so that both can be rendered as a single layer.

Methods inherited from class java.lang.Object

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

Constructor Detail

GridLayer

public GridLayer(java.util.concurrent.ExecutorService executorService,
                 FeatureSourceSupplier featureSourceSupplier,
                 StyleSupplier<org.geotools.data.FeatureSource> styleSupplier,
                 boolean renderAsSvg,
                 GridParam params,
                 org.mapfish.print.map.geotools.grid.LabelPositionCollector labels)

Constructor.

Parameters:

executorService - the thread pool for doing the rendering.

featureSourceSupplier - a function that creates the feature source. This will only be called once.

styleSupplier - a function that creates the style for styling the features. This will only be called once.

renderAsSvg - is the layer rendered as SVG?

params - the parameters for this layer

labels - the grid labels to render

Method Detail

tryAddLayer

public com.google.common.base.Optional<MapLayer> tryAddLayer(MapLayer newLayer)

Description copied from interface: MapLayer

Attempt to add the layer this layer so that both can be rendered as a single layer.

For example: 2 WMS layers from the same WMS server can be combined into a single WMS layer and the map can be rendered with a single WMS request.

Specified by:

tryAddLayer in interface MapLayer

Parameters:

newLayer - the layer to combine with this layer. The new layer will be rendered below the current layer.

Returns:

If the two layers can be combined then a map layer representing the two layers will be returned. If the two layers cannot be combined then Option.absent() will be returned.

getImageBufferScaling

public double getImageBufferScaling()

Description copied from interface: MapLayer

Get the scale ratio between the tiles resolution and the target resolution. Used to don't scale the tiles on tiled layer.

Specified by:

getImageBufferScaling in interface MapLayer

prepareRender

public void prepareRender(MapfishMapContext transformer)

Description copied from interface: MapLayer

Render the layer to the graphics2D object.

Specified by:

prepareRender in interface MapLayer

Parameters:

transformer - the map transformer containing the map bounds and size.

render

public void render(java.awt.Graphics2D graphics,
                   MfClientHttpRequestFactory clientHttpRequestFactory,
                   MapfishMapContext transformer)

Description copied from interface: MapLayer

Render the layer to the graphics2D object.

Specified by:

render in interface MapLayer

Parameters:

graphics - the graphics object.

clientHttpRequestFactory - The factory to use for making http requests.

transformer - the map transformer containing the map bounds and size.

supportsNativeRotation

public boolean supportsNativeRotation()

Description copied from interface: MapLayer

Indicate if the layer supports native rotation (e.g. WMS layers with the "angle" parameter).

Specified by:

supportsNativeRotation in interface MapLayer

Returns:

True if the layer itself takes care of rotating.

getName

public java.lang.String getName()

Description copied from interface: MapLayer

The layer name.

Specified by:

getName in interface MapLayer

getRenderType

public MapLayer.RenderType getRenderType()

Description copied from interface: MapLayer

Specify whether layer should be rendered as PNG, JPEG or SVG.

Specified by:

getRenderType in interface MapLayer

Returns:

render type

cacheResources

public void cacheResources(HttpRequestCache httpRequestCache,
                           MfClientHttpRequestFactory clientHttpRequestFactory,
                           MapfishMapContext transformer)

Description copied from interface: MapLayer

Cache any needed resources on disk.

Specified by:

cacheResources in interface MapLayer

Parameters:

httpRequestCache - TODO

clientHttpRequestFactory - client http request factory

transformer - transformer