Some last bits I haven't even gotten to documenting, yet...

---

 core-dave/src/org/openstreetmap/josm/actions/ReverseWayAction.java  |    8 -
 core-dave/src/org/openstreetmap/josm/command/ReverseWayCommand.java |   59 
++++++++++
 2 files changed, 62 insertions(+), 5 deletions(-)

diff -puN 
src/org/openstreetmap/josm/actions/ReverseWayAction.java~core-ReverseWayCommand 
src/org/openstreetmap/josm/actions/ReverseWayAction.java
--- 
core/src/org/openstreetmap/josm/actions/ReverseWayAction.java~core-ReverseWayCommand
        2008-05-03 12:08:42.000000000 -0700
+++ core-dave/src/org/openstreetmap/josm/actions/ReverseWayAction.java  
2008-05-03 12:08:42.000000000 -0700
@@ -14,6 +14,7 @@ import javax.swing.JOptionPane;
 import org.openstreetmap.josm.Main;
 import org.openstreetmap.josm.command.ChangeCommand;
 import org.openstreetmap.josm.command.Command;
+import org.openstreetmap.josm.command.ReverseWayCommand;
 import org.openstreetmap.josm.command.SequenceCommand;
 import org.openstreetmap.josm.data.osm.Relation;
 import org.openstreetmap.josm.data.osm.Node;
@@ -47,11 +48,8 @@ public final class ReverseWayAction exte
                return;
        }
        Collection<Command> c = new LinkedList<Command>();
-       for (Way w : sel) {
-               Way wnew = new Way(w);
-                       Collections.reverse(wnew.nodes);
-               c.add(new ChangeCommand(w, wnew));
-       }
+       for (Way w : sel)
+               c.add(new ReverseWayCommand(w));
        Main.main.undoRedo.add(new SequenceCommand(tr("Reverse ways"), c));
        Main.map.repaint();
     }
diff -puN 
src/org/openstreetmap/josm/command/ReverseWayCommand.java~core-ReverseWayCommand
 src/org/openstreetmap/josm/command/ReverseWayCommand.java
--- 
core/src/org/openstreetmap/josm/command/ReverseWayCommand.java~core-ReverseWayCommand
       2008-05-03 12:08:42.000000000 -0700
+++ core-dave/src/org/openstreetmap/josm/command/ReverseWayCommand.java 
2008-05-03 12:08:42.000000000 -0700
@@ -0,0 +1,59 @@
+// License: GPL. Copyright 2007 by Dave Hansen and others
+package org.openstreetmap.josm.command;
+
+import static org.openstreetmap.josm.tools.I18n.tr;
+
+import java.util.Collection;
+
+import javax.swing.JLabel;
+import javax.swing.tree.DefaultMutableTreeNode;
+import javax.swing.tree.MutableTreeNode;
+
+import org.openstreetmap.josm.Main;
+import org.openstreetmap.josm.data.osm.Node;
+import org.openstreetmap.josm.data.osm.OsmPrimitive;
+import org.openstreetmap.josm.data.osm.Way;
+import org.openstreetmap.josm.data.osm.visitor.NameVisitor;
+
+/**
+ * Command that basically replaces one OSM primitive by another of the
+ * same type.
+ *
+ * @author daveh
+ */
+public class ReverseWayCommand extends Command {
+
+       // way to reverse;
+       private final Way way;
+
+       public ReverseWayCommand(Way way) {
+               this.way = way;
+    }
+
+       @Override public boolean executeCommand() {
+           super.executeCommand();
+           for (Node n : way.nodes)
+               Main.debug("before way " + way.id + "node: " + n.id);
+               way.reverseNodes();
+           for (Node n : way.nodes)
+               Main.debug("after way " + way.id + "node: " + n.id);
+           //stem.out.println("ReverseWay: " + way.id);
+           way.modified = true;
+               return true;
+    }
+
+       @Override public void undoCommand() {
+               way.reverseNodes();
+           way.modified = this.getOrig(way).modified;
+    }
+
+       @Override public void fillModifiedData(Collection<OsmPrimitive> 
modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
+               modified.add(way);
+       }
+
+       @Override public MutableTreeNode description() {
+               NameVisitor v = new NameVisitor();
+               way.visit(v);
+               return new DefaultMutableTreeNode(new JLabel(tr("ReverseWay")+" 
"+tr(v.className)+" "+v.name, v.icon, JLabel.HORIZONTAL));
+    }
+}
_

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