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) {
}
}
}
private VTextField(StreamLoop<String> sRemoteWrite, Value<String> v, int width) {
this(sRemoteWrite, v.construct(sRemoteWrite), width);
}