001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.actions.relation; 003 004import static org.openstreetmap.josm.tools.I18n.tr; 005 006import java.awt.event.ActionEvent; 007import java.util.Collection; 008import java.util.HashSet; 009import java.util.Set; 010 011import org.openstreetmap.josm.Main; 012import org.openstreetmap.josm.data.osm.OsmPrimitive; 013import org.openstreetmap.josm.data.osm.Relation; 014import org.openstreetmap.josm.gui.dialogs.relation.DownloadRelationMemberTask; 015import org.openstreetmap.josm.io.OnlineResource; 016import org.openstreetmap.josm.tools.ImageProvider; 017import org.openstreetmap.josm.tools.Predicate; 018import org.openstreetmap.josm.tools.Utils; 019 020/** 021 * Action for downloading incomplete members of selected relations 022 * @since 5793 023 */ 024public class DownloadSelectedIncompleteMembersAction extends AbstractRelationAction { 025 026 /** 027 * Constructs a new <code>DownloadSelectedIncompleteMembersAction</code>. 028 */ 029 public DownloadSelectedIncompleteMembersAction() { 030 putValue(SHORT_DESCRIPTION, tr("Download incomplete members of selected relations")); 031 putValue(SMALL_ICON, ImageProvider.get("dialogs/relation", "downloadincompleteselected")); 032 putValue(NAME, tr("Download incomplete members")); 033 } 034 035 /** 036 * Returns the set of incomplete members of the given relations. 037 * @param rels The relations to inspect. 038 * @return The set of incomplete members of the given relations. 039 */ 040 public Set<OsmPrimitive> buildSetOfIncompleteMembers(Collection<Relation> rels) { 041 Set<OsmPrimitive> ret = new HashSet<>(); 042 for (Relation r : rels) { 043 ret.addAll(r.getIncompleteMembers()); 044 } 045 return ret; 046 } 047 048 @Override 049 public void actionPerformed(ActionEvent e) { 050 if (!isEnabled() || relations.isEmpty() || !Main.isDisplayingMapView()) return; 051 Main.worker.submit(new DownloadRelationMemberTask( 052 relations, 053 buildSetOfIncompleteMembers(relations), 054 Main.main.getEditLayer())); 055 } 056 057 @Override 058 public void setPrimitives(Collection<? extends OsmPrimitive> primitives) { 059 // selected relations with incomplete members 060 this.relations = Utils.filter(getRelations(primitives), new Predicate<Relation>(){ 061 @Override public boolean evaluate(Relation r) { 062 return !r.isNew() && r.hasIncompleteMembers(); 063 }}); 064 updateEnabledState(); 065 } 066 067 @Override 068 protected void updateEnabledState() { 069 setEnabled(!relations.isEmpty() && !Main.isOffline(OnlineResource.OSM_API)); 070 } 071}