This class is used by IFeatureStateObserver to pass information about FeatureState changes. More...

#include <luciad/layers/features/FeatureStateManager.h>

Public Member Functions
bool	getChange (const FeatureState &featureState, const LayerFeatureId &layerFeatureId) const
	Returns the new value of the feature state for the given feature. More...

std::vector< LayerFeatureId >	getChangedFeatures (const FeatureState &featureState) const
	Returns the list of features for which the given feature state has been changed. More...

std::vector< FeatureState >	getChangedFeatureStates () const
	Returns the list of feature states that has been changed for at least one Feature in this event. More...

Detailed Description

This class is used by IFeatureStateObserver to pass information about FeatureState changes.

It allows you to inspect which features have been changed, and their new values. One call to FeatureStateManager::applyStateChange will result in one FeatureStateEvent instance.

See FeatureStateManager for a usage example.

Member Function Documentation

bool luciad::FeatureStateEvent::getChange	(	const FeatureState &	featureState,
		const LayerFeatureId &	layerFeatureId
	)		const

Returns the new value of the feature state for the given feature.

Parameters

featureState	a feature state
layerFeatureId	a feature

std::vector< LayerFeatureId > luciad::FeatureStateEvent::getChangedFeatures ( const FeatureState & featureState ) const

Returns the list of features for which the given feature state has been changed.

Parameters

featureState a feature state

Returns: the list of features for which the given feature state has been changed.

std::vector< FeatureState > luciad::FeatureStateEvent::getChangedFeatureStates ( ) const

Returns the list of feature states that has been changed for at least one Feature in this event.

Returns: the list of feature states that has been changed for at least one Feature in this event.