org.deegree.graphics.displayelements
Class AbstractDisplayElement

java.lang.Object
  org.deegree.graphics.displayelements.AbstractDisplayElement

All Implemented Interfaces:

java.io.Serializable, DisplayElement

Direct Known Subclasses:

GeometryDisplayElement, RasterDisplayElement

abstract class AbstractDisplayElement
extends java.lang.Object
implements DisplayElement, java.io.Serializable

Base class for all display elements.

A DisplayElement is associated to one feature that may have a geometry property or not (this is the common case).

Version:

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

Author:

Andreas Poth, Markus Schneider, last edited by: $Author: mschneider $

Field Summary

protected Feature

feature The feature to display

Constructor Summary

AbstractDisplayElement()
An empty constructor doing nothing

AbstractDisplayElement(Feature feature)

Method Summary

abstract boolean	doesScaleConstraintApply(double scale) Returns whether the DisplayElement should be painted at the current scale or not.
java.lang.String	getAssociateFeatureId() returns the id of the feature that's associated with the DisplayElement
Feature	getFeature() Returns the associated Feature.
boolean	isHighlighted() returns if the DisplayElement is highlighted or not.
boolean	isSelected() returns if the DisplayElement is selected or not
void	setFeature(Feature feature) sets the feature encapsulated by a DisplayElement
void	setHighlighted(boolean highlighted) marks the DisplayElement as highlighted or not
void	setSelected(boolean selected) marks a DisplayElement as selected or not

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deegree.graphics.displayelements.DisplayElement

paint

Field Detail

feature

protected Feature feature

The feature to display

Constructor Detail

AbstractDisplayElement

AbstractDisplayElement()

An empty constructor doing nothing

AbstractDisplayElement

AbstractDisplayElement(Feature feature)

Parameters:

feature -

Method Detail

getFeature

public Feature getFeature()

Returns the associated Feature.

Specified by:

getFeature in interface DisplayElement

Returns:

the associated feature

setFeature

public void setFeature(Feature feature)

sets the feature encapsulated by a DisplayElement

Specified by:

setFeature in interface DisplayElement

Parameters:

feature -

getAssociateFeatureId

public java.lang.String getAssociateFeatureId()

returns the id of the feature that's associated with the DisplayElement

Specified by:

getAssociateFeatureId in interface DisplayElement

Returns:

the associated feature's id

setSelected

public void setSelected(boolean selected)

marks a DisplayElement as selected or not

Specified by:

setSelected in interface DisplayElement

Parameters:

selected - true, if the DisplayElement is selected, false otherwise

isSelected

public boolean isSelected()

returns if the DisplayElement is selected or not

Specified by:

isSelected in interface DisplayElement

Returns:

true, if the DisplayElement is selected, false otherwise

setHighlighted

public void setHighlighted(boolean highlighted)

marks the DisplayElement as highlighted or not

Specified by:

setHighlighted in interface DisplayElement

Parameters:

highlighted - true, if the DisplayElement is highlighted, false otherwise

isHighlighted

public boolean isHighlighted()

returns if the DisplayElement is highlighted or not.

Specified by:

isHighlighted in interface DisplayElement

Returns:

true, if the DisplayElement is highlighted, false otherwise

doesScaleConstraintApply

public abstract boolean doesScaleConstraintApply(double scale)

Returns whether the DisplayElement should be painted at the current scale or not.

Specified by:

doesScaleConstraintApply in interface DisplayElement

Parameters:

scale - scale to check

Returns:

true, if the DisplayElement has to be painted, false otherwise