Application: gvSIG desktop

package org.gvsig.app.gui.command;

import javax.swing.table.AbstractTableModel;

import org.gvsig.tools.undo.RedoException;

import org.gvsig.tools.undo.UndoException;

import org.gvsig.tools.undo.UndoRedoStack;

import org.gvsig.tools.undo.command.Command;

public class CommandTableModel extends AbstractTableModel{

private UndoRedoStack cr;

public CommandTableModel(UndoRedoStack cr) {

        this.cr=cr;

        }

        public int getPos() {

                return cr.getUndoInfos().size()-1;

        }

        public int getColumnCount() {

                return 1;

        }

        public int getRowCount() {

                return cr.getRedoInfos().size()+cr.getUndoInfos().size();

        }

        public Object getValueAt(int i, int j) {

                Command[] undos=(Command[])cr.getUndoInfos().toArray(new Command[0]);

                Command[] redos=(Command[])cr.getRedoInfos().toArray(new Command[0]);

                if (i<undos.length){

                        //System.out.println("undo i=" + i + " index=" + (undos.length-1-i));

                        return undos[undos.length-1-i];

                }else{

                        //System.out.println("redo i=" + i + " index=" + (i-undos.length));

                        return redos[i-undos.length];

                }

        }

        public void setPos(int newpos) {

                try {

                        if (newpos>getPos()){

                                cr.redo(newpos-getPos());

                        }else{

                                cr.undo(getPos()-newpos);

                        }

                } catch (RedoException e) {

                        e.printStackTrace();

                } catch (UndoException e) {

                        e.printStackTrace();

                }

        }

}