// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.command;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.util.Collection;
import java.util.Objects;
import javax.swing.Icon;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
import org.openstreetmap.josm.data.osm.Relation;
import org.openstreetmap.josm.data.osm.RelationMember;
import org.openstreetmap.josm.gui.DefaultNameFormatter;
import org.openstreetmap.josm.tools.ImageProvider;
/**
* Command that changes the role of a relation member
*
* @author Teemu Koskinen <teemu.koskinen@mbnet.fi>
*/
public class ChangeRelationMemberRoleCommand extends Command {
// The relation to be changed
private final Relation relation;
// Position of the member
private final int position;
// The new role
private final String newRole;
// The old role
private String oldRole;
// Old value of modified
private Boolean oldModified;
/**
* Constructs a new {@code ChangeRelationMemberRoleCommand}.
* @param relation The relation to be changed
* @param position Member position
* @param newRole New role
*/
public ChangeRelationMemberRoleCommand(Relation relation, int position, String newRole) {
this.relation = relation;
this.position = position;
this.newRole = newRole;
}
@Override
public boolean executeCommand() {
if (position < 0 || position >= relation.getMembersCount())
return true;
oldRole = relation.getMember(position).getRole();
if (newRole.equals(oldRole)) return true;
relation.setMember(position, new RelationMember(newRole, relation.getMember(position).getMember()));
oldModified = relation.isModified();
relation.setModified(true);
return true;
}
@Override
public void undoCommand() {
if (position >= 0 && position < relation.getMembersCount()) {
relation.setMember(position, new RelationMember(oldRole, relation.getMember(position).getMember()));
if (oldModified != null) {
relation.setModified(oldModified);
}
}
}
@Override
public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
modified.add(relation);
}
@Override
public String getDescriptionText() {
return tr("Change relation member role for {0} {1}",
OsmPrimitiveType.from(relation),
relation.getDisplayName(DefaultNameFormatter.getInstance()));
}
@Override
public Icon getDescriptionIcon() {
return ImageProvider.get(relation.getDisplayType());
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), relation, position, newRole, oldRole, oldModified);
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
if (!super.equals(obj)) return false;
ChangeRelationMemberRoleCommand that = (ChangeRelationMemberRoleCommand) obj;
return position == that.position &&
Objects.equals(relation, that.relation) &&
Objects.equals(newRole, that.newRole) &&
Objects.equals(oldRole, that.oldRole) &&
Objects.equals(oldModified, that.oldModified);
}
}