Package com.vividsolutions.jump.workbench.ui

Class SelectionManager

java.lang.Object

com.vividsolutions.jump.workbench.ui.SelectionManager

public class SelectionManager
extends Object

Provides aggregate information for selected features, parts, and linestrings. Note that there is a difference between "selected features" and "features with selected items": the former consists of wholly selected features; the latter, wholly and partially selected features. To access a specific level of selection, use #getFeatureSelection, #getPartSelection, or #getLineStringSelection. "Parts" are components of GeometryCollections.

To get wholly selected features (i.e. not those that just have selected parts or linestrings), use getFeatureSelection().getFeaturesWithSelectedItems()

To get features that are selected or have selected parts or linestrings, use getFeaturesWithSelectedItems()

Yes there is a way to listen for selection events: LayerViewPanel#addListener.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	featuresWithSelectedItemsCount
protected int	selectedItems

Constructor Summary

Constructors

Constructor	Description
SelectionManager(LayerViewPanel panel, LayerManagerProxy layerManagerProxy)

Method Summary

Modifier and Type	Method	Description
boolean	arePanelUpdatesEnabled()
void	clear()
Collection<Feature>	createFeaturesFromSelectedItems()	A feature may get split into two or more -- for example, if two linestrings of a feature are selected.
Collection<Feature>	createFeaturesFromSelectedItems(Layer layer)
void	dispose()
FeatureSelection	getFeatureSelection()
Collection<Feature>	getFeaturesWithSelectedItems()
Collection<Feature>	getFeaturesWithSelectedItems(Layer layer)
int	getFeaturesWithSelectedItemsCount()
Collection<Layer>	getLayersWithSelectedItems()
LineStringSelection	getLineStringSelection()
PartSelection	getPartSelection()
Collection<org.locationtech.jts.geom.Geometry>	getSelectedItems()	"items" rather than "geometries" because the user may have selected a part of a Geometry (an element of a GeometryCollection or a ring of a Polygon).
Collection<org.locationtech.jts.geom.Geometry>	getSelectedItems(Layer layer)
Collection<org.locationtech.jts.geom.Geometry>	getSelectedItems(Layer layer, Feature feature)
Collection<org.locationtech.jts.geom.Geometry>	getSelectedItems(Layer layer, Feature feature, org.locationtech.jts.geom.Geometry geometry)
int	getSelectedItemsCount()
Collection<AbstractSelection>	getSelections()
void	setPanelUpdatesEnabled(boolean panelUpdatesEnabled)
void	unselectFromFeaturesWithModifiedItemCounts(Layer layer, Collection<Feature> features, Collection<Feature> oldFeatureClones)
void	unselectItems(Layer layer)
void	unselectItems(Layer layer, Collection features)
void	updatePanel()

Methods inherited from class java.lang.Object

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

Field Detail

featuresWithSelectedItemsCount

protected int featuresWithSelectedItemsCount

selectedItems

protected int selectedItems

Constructor Detail

SelectionManager

public SelectionManager(LayerViewPanel panel,
                        LayerManagerProxy layerManagerProxy)

Method Detail

createFeaturesFromSelectedItems

public Collection<Feature> createFeaturesFromSelectedItems()

A feature may get split into two or more -- for example, if two linestrings of a feature are selected.

createFeaturesFromSelectedItems

public Collection<Feature> createFeaturesFromSelectedItems(Layer layer)

clear

public void clear()

getFeatureSelection

public FeatureSelection getFeatureSelection()

getLineStringSelection

public LineStringSelection getLineStringSelection()

getSelections

public Collection<AbstractSelection> getSelections()

Returns:

AbstractSelections

getSelectedItems

public Collection<org.locationtech.jts.geom.Geometry> getSelectedItems()

"items" rather than "geometries" because the user may have selected a part of a Geometry (an element of a GeometryCollection or a ring of a Polygon).

Returns:

a collection of Geometries

getSelectedItemsCount

public int getSelectedItemsCount()

getSelectedItems

public Collection<org.locationtech.jts.geom.Geometry> getSelectedItems(Layer layer)

getSelectedItems

public Collection<org.locationtech.jts.geom.Geometry> getSelectedItems(Layer layer,
                                                                       Feature feature)

getSelectedItems

public Collection<org.locationtech.jts.geom.Geometry> getSelectedItems(Layer layer,
                                                                       Feature feature,
                                                                       org.locationtech.jts.geom.Geometry geometry)

Parameters:

geometry - the feature's Geometry or equivalent; that is, a clone or similar enough Geometry from which Geometries can be retrieved using the selection indices

getLayersWithSelectedItems

public Collection<Layer> getLayersWithSelectedItems()

getPartSelection

public PartSelection getPartSelection()

updatePanel

public void updatePanel()

setPanelUpdatesEnabled

public void setPanelUpdatesEnabled(boolean panelUpdatesEnabled)

getFeaturesWithSelectedItems

public Collection<Feature> getFeaturesWithSelectedItems(Layer layer)

unselectItems

public void unselectItems(Layer layer)

unselectItems

public void unselectItems(Layer layer,
                          Collection features)

unselectFromFeaturesWithModifiedItemCounts

public void unselectFromFeaturesWithModifiedItemCounts(Layer layer,
                                                       Collection<Feature> features,
                                                       Collection<Feature> oldFeatureClones)

getFeaturesWithSelectedItems

public Collection<Feature> getFeaturesWithSelectedItems()

getFeaturesWithSelectedItemsCount

public int getFeaturesWithSelectedItemsCount()

arePanelUpdatesEnabled

public boolean arePanelUpdatesEnabled()

dispose

public void dispose()