001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.command; 003 004import static org.openstreetmap.josm.tools.I18n.marktr; 005import static org.openstreetmap.josm.tools.I18n.tr; 006 007import java.util.Collection; 008import java.util.Collections; 009 010import javax.swing.Icon; 011 012import org.openstreetmap.josm.data.osm.OsmPrimitive; 013import org.openstreetmap.josm.data.osm.OsmPrimitiveType; 014import org.openstreetmap.josm.data.osm.Way; 015import org.openstreetmap.josm.gui.DefaultNameFormatter; 016import org.openstreetmap.josm.gui.layer.OsmDataLayer; 017import org.openstreetmap.josm.tools.ImageProvider; 018 019/** 020 * A command that adds an osm primitive to a dataset. Keys cannot be added this way. 021 * 022 * See {@link ChangeCommand} for comments on relation back references. 023 * 024 * @author imi 025 */ 026public class AddCommand extends Command { 027 028 /** 029 * The primitive to add to the dataset. 030 */ 031 private final OsmPrimitive osm; 032 033 /** 034 * Creates the command and specify the element to add in the context of the current edit layer, if any. 035 * @param osm The primitive to add 036 */ 037 public AddCommand(OsmPrimitive osm) { 038 this.osm = osm; 039 } 040 041 /** 042 * Creates the command and specify the element to add in the context of the given data layer. 043 * @param layer The data layer. Must not be {@code null} 044 * @param osm The primitive to add 045 */ 046 public AddCommand(OsmDataLayer layer, OsmPrimitive osm) { 047 super(layer); 048 this.osm = osm; 049 } 050 051 protected static final void checkNodeStyles(OsmPrimitive osm) { 052 if (osm instanceof Way) { 053 // Fix #10557 - node icon not updated after undoing/redoing addition of a way 054 ((Way) osm).clearCachedNodeStyles(); 055 } 056 } 057 058 @Override 059 public boolean executeCommand() { 060 getLayer().data.addPrimitive(osm); 061 osm.setModified(true); 062 checkNodeStyles(osm); 063 return true; 064 } 065 066 @Override 067 public void undoCommand() { 068 getLayer().data.removePrimitive(osm); 069 checkNodeStyles(osm); 070 } 071 072 @Override 073 public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) { 074 added.add(osm); 075 } 076 077 @Override 078 public String getDescriptionText() { 079 String msg; 080 switch(OsmPrimitiveType.from(osm)) { 081 case NODE: msg = marktr("Add node {0}"); break; 082 case WAY: msg = marktr("Add way {0}"); break; 083 case RELATION: msg = marktr("Add relation {0}"); break; 084 default: /* should not happen */msg = ""; break; 085 } 086 return tr(msg, osm.getDisplayName(DefaultNameFormatter.getInstance())); 087 } 088 089 @Override 090 public Icon getDescriptionIcon() { 091 return ImageProvider.get(osm.getDisplayType()); 092 } 093 094 @Override 095 public Collection<OsmPrimitive> getParticipatingPrimitives() { 096 return Collections.singleton(osm); 097 } 098 099 @Override 100 public int hashCode() { 101 final int prime = 31; 102 int result = super.hashCode(); 103 result = prime * result + ((osm == null) ? 0 : osm.hashCode()); 104 return result; 105 } 106 107 @Override 108 public boolean equals(Object obj) { 109 if (this == obj) 110 return true; 111 if (!super.equals(obj)) 112 return false; 113 if (getClass() != obj.getClass()) 114 return false; 115 AddCommand other = (AddCommand) obj; 116 if (osm == null) { 117 if (other.osm != null) 118 return false; 119 } else if (!osm.equals(other.osm)) 120 return false; 121 return true; 122 } 123}