source: src/main/java/genius/gui/session/ParticipantsPanel.java@ 89

package genius.gui.session;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;
import javax.swing.event.TableModelListener;
import javax.swing.table.TableModel;

import genius.core.repository.RepItem;
import genius.core.session.Participant;
import genius.gui.panels.VflowPanelWithBorder;
import genius.gui.renderer.RepItemTableCellRenderer;

/**
 * An editor for a list of participants.
 *
 */
@SuppressWarnings("serial")
public class ParticipantsPanel extends VflowPanelWithBorder {

        public ParticipantsPanel(final ParticipantModel participantModel,
                        final DefaultListModel<Participant> participantsModel) {
                super("Participants");

                add(new ParticipantPanel(participantModel));

                JPanel buttonsPanel = new JPanel(new BorderLayout());
                JButton addButton = new JButton("Add Party");
                JButton removeButton = new JButton("Remove Party");
                buttonsPanel.add(addButton, BorderLayout.WEST);
                buttonsPanel.add(removeButton, BorderLayout.EAST);
                buttonsPanel.setMaximumSize(new Dimension(99999999, 30));

                add(buttonsPanel);

                final JTable table = new JTable(new ParticipantTableAdapter(participantsModel));
                table.setDefaultRenderer(RepItem.class, new RepItemTableCellRenderer());
                add(new JScrollPane(table));

                addButton.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                                participantsModel.addElement(participantModel.getParticipant());
                                participantModel.increment();
                        }
                });

                removeButton.addActionListener(new ActionListener() {

                        @Override
                        public void actionPerformed(ActionEvent e) {
                                if (table.getSelectedRow() != -1) {
                                        Participant participant = participantsModel.getElementAt(table.getSelectedRow());
                                        participantsModel.removeElement(participant);
                                }
                        }
                });
        }

}

/******************************************************************************************
 ************************************ INTERNAL ADAPTERS ***********************************
 ******************************************************************************************/
/**
 * Adapts the DefaultListModel<Participant> to show it in a 3-column table.
 */
class ParticipantTableAdapter implements TableModel {

        private DefaultListModel<Participant> model;

        public ParticipantTableAdapter(DefaultListModel<Participant> participantsModel) {
                this.model = participantsModel;
        }

        @Override
        public int getRowCount() {
                return model.getSize();
        }

        @Override
        public int getColumnCount() {
                return 3;
        }

        private static final String[] columns = { "Party ID", "Strategy", "Preference" };

        @Override
        public String getColumnName(int columnIndex) {
                return columns[columnIndex];
        }

        @Override
        public Class<?> getColumnClass(int columnIndex) {
                if (columnIndex == 0)
                        return String.class;
                return RepItem.class;
        }

        @Override
        public boolean isCellEditable(int rowIndex, int columnIndex) {
                return false;
        }

        @Override
        public Object getValueAt(int rowIndex, int columnIndex) {
                Participant party = model.get(rowIndex);
                switch (columnIndex) {
                case 0:
                        return party.getId();
                case 1:
                        return party.getStrategy();
                case 2:
                        return party.getProfile();
                }
                return "??";
        }

        @Override
        public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
        }

        @Override
        public void addTableModelListener(TableModelListener l) {
                model.addListDataListener(new ListToTableListenerAdapter(l));
        }

        @Override
        public void removeTableModelListener(TableModelListener l) {
                model.removeListDataListener(new ListToTableListenerAdapter(l));
        }

}

/**
 * Bridges from ListDataListener to TableModelListeners so that a table can
 * listen to changes in a ListDataModel.
 *
 */
class ListToTableListenerAdapter implements ListDataListener {

        private TableModelListener tableListener;

        public ListToTableListenerAdapter(TableModelListener l) {
                tableListener = l;
        }

        @Override
        public void intervalAdded(ListDataEvent e) {
                tableListener.tableChanged(null);
        }

        @Override
        public void intervalRemoved(ListDataEvent e) {
                tableListener.tableChanged(null);
        }

        @Override
        public void contentsChanged(ListDataEvent e) {
                tableListener.tableChanged(null);
        }

        @Override
        public int hashCode() {
                final int prime = 31;
                int result = 1;
                result = prime * result + ((tableListener == null) ? 0 : tableListener.hashCode());
                return result;
        }

        @Override
        public boolean equals(Object obj) {
                if (this == obj)
                        return true;
                if (obj == null)
                        return false;
                if (getClass() != obj.getClass())
                        return false;
                ListToTableListenerAdapter other = (ListToTableListenerAdapter) obj;
                if (tableListener == null) {
                        if (other.tableListener != null)
                                return false;
                } else if (!tableListener.equals(other.tableListener))
                        return false;
                return true;
        }

}