// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.datatransfer.importers;
import static org.openstreetmap.josm.tools.I18n.trn;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.swing.TransferHandler.TransferSupport;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.command.ChangePropertyCommand;
import org.openstreetmap.josm.command.Command;
import org.openstreetmap.josm.command.SequenceCommand;
import org.openstreetmap.josm.data.coor.EastNorth;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
import org.openstreetmap.josm.tools.I18n;
/**
* This transfer support allows us to transfer tags to the selected primitives
* @author Michael Zangl
* @since 10604
*/
public abstract class AbstractTagPaster extends AbstractOsmDataPaster {
AbstractTagPaster(DataFlavor df) {
super(df);
}
@Override
public boolean importData(TransferSupport support, OsmDataLayer layer, EastNorth pasteAt)
throws UnsupportedFlavorException, IOException {
Collection<OsmPrimitive> selection = layer.data.getSelected();
if (selection.isEmpty()) {
return false;
}
return importTagsOn(support, selection);
}
@Override
public boolean importTagsOn(TransferSupport support, Collection<? extends OsmPrimitive> selection)
throws UnsupportedFlavorException, IOException {
ChangePropertyCommand command = new ChangePropertyCommand(selection, getTags(support));
commitCommands(selection, Collections.singletonList(command));
return true;
}
/**
* Create and execute SequenceCommand with descriptive title
* @param selection selected primitives
* @param commands the commands to perform in a sequential command
* @since 10737
*/
protected static void commitCommands(Collection<? extends OsmPrimitive> selection, List<Command> commands) {
if (!commands.isEmpty()) {
String title1 = trn("Pasting {0} tag", "Pasting {0} tags", commands.size(), commands.size());
String title2 = trn("to {0} object", "to {0} objects", selection.size(), selection.size());
@I18n.QuirkyPluralString
final String title = title1 + ' ' + title2;
Main.main.undoRedo.add(new SequenceCommand(title, commands));
}
}
/**
* Gets the tags that should be pasted.
* @param support The TransferSupport to get the tags from.
* @return The tags
* @throws UnsupportedFlavorException if the requested data flavor is not supported
* @throws IOException if an I/O error occurs
*/
protected abstract Map<String, String> getTags(TransferSupport support) throws UnsupportedFlavorException, IOException;
}