Example #1
0
 public static void main(String[] args) {
   JFrame frame = new JFrame("redgreen");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setLayout(new FlowLayout());
   SButton red = new SButton("red");
   SButton green = new SButton("green");
   Stream<String> sRed = red.sClicked.map(u -> "red");
   Stream<String> sGreen = green.sClicked.map(u -> "green");
   Stream<String> sColor = sRed.orElse(sGreen);
   Cell<String> color = sColor.hold("");
   SLabel lbl = new SLabel(color);
   frame.add(red);
   frame.add(green);
   frame.add(lbl);
   frame.setSize(400, 160);
   frame.setVisible(true);
 }
Example #2
0
  public static void main(String[] args) {
    JFrame frame = new JFrame("form");
    Listener l =
        Transaction.run(
            () -> {
              frame.setLayout(new FlowLayout());
              SButton newClient = new SButton("Open new client");
              frame.add(newClient);
              BackEnd be = new BackEnd();
              Value<String> vName = be.allocate("name", "Joe Bloggs");
              Value<Date> vBirthDate = be.allocate("birthDate", new Date(1980, 5, 1));

              Value<Integer> vYear = vBirthDate.lens(d -> d.year, (dt, y) -> dt.setYear(y));
              Value<Integer> vMonth = vBirthDate.lens(d -> d.month, (dt, y) -> dt.setMonth(y));
              Value<Integer> vDay = vBirthDate.lens(d -> d.day, (dt, y) -> dt.setDay(y));
              Bijection<Integer, String> toString =
                  new Bijection<>(
                      i -> Integer.toString(i),
                      s -> {
                        try {
                          return Integer.parseInt(s);
                        } catch (NumberFormatException e) {
                          return 0;
                        }
                      });
              Value<String> vYearStr = vYear.map(toString);
              Value<String> vMonthStr = vMonth.map(toString);
              Value<String> vDayStr = vDay.map(toString);

              frame.setSize(500, 250);
              frame.setVisible(true);
              return newClient.sClicked.listen(
                  u -> {
                    SwingUtilities.invokeLater(
                        () -> {
                          JFrame client = new JFrame("form client");
                          GridBagLayout gridbag = new GridBagLayout();
                          client.setLayout(gridbag);
                          GridBagConstraints c = new GridBagConstraints();
                          c.fill = GridBagConstraints.HORIZONTAL;
                          c.weighty = 0.0;
                          c.weightx = 1.0;
                          c.gridwidth = 1;
                          c.gridheight = 1;
                          c.gridx = 0;
                          c.gridy = 0;
                          Transaction.runVoid(
                              () -> {
                                c.gridx = 0;
                                client.add(new JLabel("Name"), c);
                                c.gridx = 1;
                                c.gridwidth = 3;
                                client.add(new VTextField(vName, 15), c);
                                c.gridwidth = 1;

                                c.gridy = 1;
                                c.gridx = 0;
                                client.add(new JLabel("Birth date"), c);
                                c.gridx = 1;
                                client.add(new VTextField(vYearStr, 4), c);
                                c.gridx = 2;
                                client.add(new VTextField(vMonthStr, 2), c);
                                c.gridx = 3;
                                client.add(new VTextField(vDayStr, 2), c);

                                client.setSize(300, 100);
                                client.setVisible(true);
                              });
                          client.addWindowListener(
                              new WindowAdapter() {
                                public void windowClosing(WindowEvent e) {
                                  client.dispose();
                                }
                              });
                        });
                  });
            });
    frame.addWindowListener(
        new WindowAdapter() {
          public void windowClosing(WindowEvent e) {
            l.unlisten();
            System.exit(0);
          }
        });
    while (true) {
      Runtime.getRuntime().gc();
      try {
        Thread.sleep(1000);
      } catch (InterruptedException e) {
      }
    }
  }