org.deegree.portal.standard.wms.control
Class DynLegendListener

java.lang.Object
  org.deegree.enterprise.control.AbstractListener
      org.deegree.portal.standard.wms.control.AbstractMapListener
          org.deegree.portal.standard.wms.control.DynLegendListener

All Implemented Interfaces:

EventListener, WebListener

public class DynLegendListener
extends AbstractMapListener

Will be called if the client forces a dynamic legend. There are two different ways of retreiving the legend for each layer: First, we try to get the legend from the layer information in the WMC. Second, we try to get the legend from the WMS serving this layer: It is attempted to get the legend url from style info in the WMS Capabilities, first with the passed style info, second for the default style, third for the only available style. (If the WMS capabilities holds more than one style, but no style was passed with the layer info, then one cannot know "the right style". Therefore no style is taken from WMS capabilities, in this case.) Then, it is attempted to get the legend image from a GetLegendGraphics request, if the WMS capabilities state, that this request is supported by the WMS. If this all fails, the missingImage is taken if defined in init params.

Version:

$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $

Author:

Andreas Poth, last edited by: $Author: mays$

Constructor Summary

DynLegendListener()

Method Summary

void	actionPerformed(FormEvent event)

Methods inherited from class org.deegree.portal.standard.wms.control.AbstractMapListener

getScale, toMap

Methods inherited from class org.deegree.enterprise.control.AbstractListener

getAlternativeNextPage, getHomePath, getInitParameter, getInitParameterList, getNextPage, getRequest, getReturnValue, gotoErrorPage, handle, setAlternativeNextPage, setDefaultAlternativeNextPage, setDefaultNextPage, setNextPage, setReturnValue, toModel

Methods inherited from class java.lang.Object

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

Constructor Detail

DynLegendListener

public DynLegendListener()

Method Detail

actionPerformed

public void actionPerformed(FormEvent event)

Specified by:

actionPerformed in interface WebListener

Overrides:

actionPerformed in class AbstractMapListener