// License: GPL. Copyright 2007 by Immanuel Scholz and others
package org.openstreetmap.josm.command;
import static org.openstreetmap.josm.tools.I18n.marktr;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import javax.swing.JLabel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.MutableTreeNode;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
import org.openstreetmap.josm.gui.DefaultNameFormatter;
import org.openstreetmap.josm.tools.ImageProvider;
/**
* Command that manipulate the key/value structure of several objects. Manages deletion,
* adding and modify of values and keys.
*
* @author imi
*/
public class ChangePropertyCommand extends Command {
/**
* All primitives that are affected with this command.
*/
private final List<OsmPrimitive> objects;
/**
* The key that is subject to change.
*/
private final String key;
/**
* The key value. If it is <code>null</code>, delete all key references with the given
* key. Otherwise, change the properties of all objects to the given value or create keys of
* those objects that do not have the key yet.
*/
private final String value;
public ChangePropertyCommand(Collection<? extends OsmPrimitive> objects, String key, String value) {
super();
this.objects = new LinkedList<OsmPrimitive>();
this.key = key;
this.value = value;
if (value == null) {
for (OsmPrimitive osm : objects) {
if(osm.get(key) != null) {
this.objects.add(osm);
}
}
} else {
for (OsmPrimitive osm : objects) {
String val = osm.get(key);
if (val == null || !value.equals(val)) {
this.objects.add(osm);
}
}
}
}
public ChangePropertyCommand(OsmPrimitive object, String key, String value) {
this.objects = new LinkedList<OsmPrimitive>();
this.key = key;
this.value = value;
String val = object.get(key);
if ((value == null && val != null)
|| (value != null && (val == null || !value.equals(val)))) {
this.objects.add(object);
}
}
@Override public boolean executeCommand() {
super.executeCommand(); // save old
if (value == null) {
for (OsmPrimitive osm : objects) {
osm.setModified(true);
osm.remove(key);
}
} else {
for (OsmPrimitive osm : objects) {
osm.setModified(true);
osm.put(key, value);
}
}
return true;
}
@Override public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
modified.addAll(objects);
}
@Override public MutableTreeNode description() {
String text;
if (objects.size() == 1) {
OsmPrimitive primitive = objects.iterator().next();
String msg = "";
if (value == null) {
switch(OsmPrimitiveType.from(primitive)) {
case NODE: msg = marktr("Remove \"{0}\" for node ''{1}''"); break;
case WAY: msg = marktr("Remove \"{0}\" for way ''{1}''"); break;
case RELATION: msg = marktr("Remove \"{0}\" for relation ''{1}''"); break;
}
text = tr(msg, key, primitive.getDisplayName(DefaultNameFormatter.getInstance()));
} else {
switch(OsmPrimitiveType.from(primitive)) {
case NODE: msg = marktr("Set {0}={1} for node ''{2}''"); break;
case WAY: msg = marktr("Set {0}={1} for way ''{2}''"); break;
case RELATION: msg = marktr("Set {0}={1} for relation ''{2}''"); break;
}
text = tr(msg, key, value, primitive.getDisplayName(DefaultNameFormatter.getInstance()));
}
} else {
text = value == null
? tr("Remove \"{0}\" for {1} objects", key, objects.size())
: tr("Set {0}={1} for {2} objects", key, value, objects.size());
}
DefaultMutableTreeNode root = new DefaultMutableTreeNode(new JLabel(text, ImageProvider.get("data", "key"), JLabel.HORIZONTAL));
if (objects.size() == 1)
return root;
for (OsmPrimitive osm : objects) {
root.add(new DefaultMutableTreeNode(
new JLabel(
osm.getDisplayName(DefaultNameFormatter.getInstance()),
ImageProvider.get(OsmPrimitiveType.from(osm)),
JLabel.HORIZONTAL)
)
);
}
return root;
}
}