/*
This file is part of RouteConverter.
RouteConverter is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
RouteConverter is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RouteConverter; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Copyright (C) 2007 Christian Pesch. All Rights Reserved.
*/
package slash.navigation.converter.gui.dnd;
import slash.navigation.base.BaseNavigationFormat;
import slash.navigation.base.BaseNavigationPosition;
import slash.navigation.common.NavigationPosition;
import slash.navigation.base.SimpleRoute;
import slash.navigation.simple.GlopusFormat;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import static slash.navigation.base.NavigationFormats.asFormatForPositions;
import static slash.navigation.base.RouteCharacteristics.Waypoints;
/**
* Acts as a container for drag and drop operations with {@link BaseNavigationPosition}s.
*
* @author Christian Pesch
*/
public class PositionSelection implements Transferable {
private static final Logger log = Logger.getLogger(PositionSelection.class.getName());
public static final DataFlavor positionFlavor = new DataFlavor(PositionSelection.class, "List of Positions");
public static final DataFlavor stringFlavor = DataFlavor.stringFlavor;
private final List<NavigationPosition> positions;
private final BaseNavigationFormat format;
private final String string;
public PositionSelection(List<NavigationPosition> positions, BaseNavigationFormat format) {
this.positions = positions;
this.format = format;
this.string = createStringFor(positions);
}
private String createStringFor(List<NavigationPosition> sourcePositions) {
GlopusFormat targetFormat = new GlopusFormat();
List<BaseNavigationPosition> targetPositions = new ArrayList<BaseNavigationPosition>();
try {
targetPositions = asFormatForPositions(sourcePositions, targetFormat);
} catch (IOException e) {
log.severe("Cannot convert " + sourcePositions + " for selection: " + e);
}
SimpleRoute targetRoute = targetFormat.createRoute(Waypoints, null, targetPositions);
StringWriter writer = new StringWriter();
targetFormat.write(targetRoute, new PrintWriter(writer), 0, targetPositions.size());
return writer.toString();
}
public List<NavigationPosition> getPositions() {
return positions;
}
public BaseNavigationFormat getFormat() {
return format;
}
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[]{positionFlavor, stringFlavor};
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
for (DataFlavor f : getTransferDataFlavors()) {
if (f.equals(flavor)) {
return true;
}
}
return false;
}
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
if (positionFlavor.equals(flavor))
return this;
if (stringFlavor.equals(flavor))
return string;
throw new UnsupportedFlavorException(flavor);
}
}