com.vividsolutions.jump.workbench.ui

Class SelectionManager

java.lang.Object

com.vividsolutions.jump.workbench.ui.SelectionManager

public class SelectionManager
extends java.lang.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 and Description
protected int	featuresWithSelectedItemsCount
protected int	selectedItems

Constructor Summary

Constructors

Constructor and Description
SelectionManager(LayerViewPanel panel, LayerManagerProxy layerManagerProxy)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	arePanelUpdatesEnabled()
void	clear()
java.util.Collection	createFeaturesFromSelectedItems() A feature may get split into two or more -- for example, if two linestrings of a feature are selected.
java.util.Collection	createFeaturesFromSelectedItems(Layer layer)
void	dispose()
FeatureSelection	getFeatureSelection()
java.util.Collection	getFeaturesWithSelectedItems()
java.util.Collection	getFeaturesWithSelectedItems(Layer layer)
int	getFeaturesWithSelectedItemsCount()
java.util.Collection<Layer>	getLayersWithSelectedItems()
LineStringSelection	getLineStringSelection()
PartSelection	getPartSelection()
java.util.Collection	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).
java.util.Collection	getSelectedItems(Layer layer)
java.util.Collection	getSelectedItems(Layer layer, Feature feature)
java.util.Collection	getSelectedItems(Layer layer, Feature feature, com.vividsolutions.jts.geom.Geometry geometry)
int	getSelectedItemsCount()
java.util.Collection<AbstractSelection>	getSelections()
void	setPanelUpdatesEnabled(boolean panelUpdatesEnabled)
void	unselectFromFeaturesWithModifiedItemCounts(Layer layer, java.util.Collection features, java.util.Collection oldFeatureClones)
void	unselectItems(Layer layer)
void	unselectItems(Layer layer, java.util.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 java.util.Collection createFeaturesFromSelectedItems()

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

createFeaturesFromSelectedItems

public java.util.Collection createFeaturesFromSelectedItems(Layer layer)

clear

public void clear()

getFeatureSelection

public FeatureSelection getFeatureSelection()

getLineStringSelection

public LineStringSelection getLineStringSelection()

getSelections

public java.util.Collection<AbstractSelection> getSelections()

Returns:

AbstractSelections

getSelectedItems

public java.util.Collection 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 java.util.Collection getSelectedItems(Layer layer)

getSelectedItems

public java.util.Collection getSelectedItems(Layer layer,
                                    Feature feature)

getSelectedItems

public java.util.Collection getSelectedItems(Layer layer,
                                    Feature feature,
                                    com.vividsolutions.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 java.util.Collection<Layer> getLayersWithSelectedItems()

getPartSelection

public PartSelection getPartSelection()

updatePanel

public void updatePanel()

setPanelUpdatesEnabled

public void setPanelUpdatesEnabled(boolean panelUpdatesEnabled)

getFeaturesWithSelectedItems

public java.util.Collection getFeaturesWithSelectedItems(Layer layer)

unselectItems

public void unselectItems(Layer layer)

unselectItems

public void unselectItems(Layer layer,
                 java.util.Collection features)

unselectFromFeaturesWithModifiedItemCounts

public void unselectFromFeaturesWithModifiedItemCounts(Layer layer,
                                              java.util.Collection features,
                                              java.util.Collection oldFeatureClones)

getFeaturesWithSelectedItems

public java.util.Collection getFeaturesWithSelectedItems()

getFeaturesWithSelectedItemsCount

public int getFeaturesWithSelectedItemsCount()

arePanelUpdatesEnabled

public boolean arePanelUpdatesEnabled()

dispose

public void dispose()