source: src/main/java/genius/gui/tournamentvars/ProtocolVarUI.java

package genius.gui.tournamentvars;

import java.awt.Frame;
import java.awt.Panel;
import java.util.ArrayList;

import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.JRadioButton;

import genius.core.repository.ProtocolRepItem;
import genius.core.repository.Repository;
import genius.core.repository.RepositoryFactory;
import genius.gui.panels.DefaultOKCancelDialog;

/**
 * Open a UI and negotiate with user about which agents to use in tournament.
 * 
 * @author wouter
 * 
 */
public class ProtocolVarUI extends DefaultOKCancelDialog {

        private static final long serialVersionUID = -6106919299675060907L;
        ArrayList<ProtocolRadioButton> radioButtons; // copy of what's in the panel,
                                                                                                        // for easy check-out.

        public ProtocolVarUI(Frame owner) {
                super(owner, "Protocol Variable Selector");

        }

        public Panel getPanel() {
                radioButtons = new ArrayList<ProtocolRadioButton>();
                Panel protocolList = new Panel();
                protocolList.setLayout(new BoxLayout(protocolList, BoxLayout.Y_AXIS));
                ButtonGroup group = new ButtonGroup();

                Repository<ProtocolRepItem> protocolRep = RepositoryFactory.getProtocolRepository();
                for (ProtocolRepItem agt : protocolRep.getItems()) {
                        ProtocolRadioButton cbox = new ProtocolRadioButton((ProtocolRepItem) agt);
                        radioButtons.add(cbox);
                        protocolList.add(cbox);
                        cbox.setSelected(true);
                        group.add(cbox);
                }
                return protocolList;
        }

        public Object ok() {
                ArrayList<ProtocolRepItem> result = new ArrayList<ProtocolRepItem>();
                for (ProtocolRadioButton cbox : radioButtons) {
                        if (cbox.isSelected())
                                result.add(cbox.protocolRepItem);
                }
                return result;
        }
}

class ProtocolRadioButton extends JRadioButton {
        public ProtocolRepItem protocolRepItem;

        public ProtocolRadioButton(ProtocolRepItem protocolRepItem) {
                super("" + protocolRepItem.getName());
                this.protocolRepItem = protocolRepItem;
        }
}