source: josm/src/org/openstreetmap/josm/tools/DontShowAgainInfo.java@ 196

package org.openstreetmap.josm.tools;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.Container;
import java.awt.GridBagLayout;

import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

import org.openstreetmap.josm.Main;

public class DontShowAgainInfo {

        public static boolean show(String prefKey, String msg) {
                return show(prefKey, new JLabel(msg));
        }

        public static boolean show(String prefKey, Container msg) {
                if (!Main.pref.getBoolean("message."+prefKey)) {
                        JCheckBox dontshowagain = new JCheckBox(tr("Do not show again"));
                        dontshowagain.setSelected(Main.pref.getBoolean("message."+prefKey, true));
                        JPanel all = new JPanel(new GridBagLayout());
                        all.add(msg, GBC.eop());
                        all.add(dontshowagain, GBC.eol());
                        int answer = JOptionPane.showConfirmDialog(Main.parent, all, tr("Information"), JOptionPane.OK_CANCEL_OPTION);
                        if (answer != JOptionPane.OK_OPTION)
                                return false;
                        Main.pref.put("message."+prefKey, dontshowagain.isSelected());
                }
                return true;
        }
}