public SDateField() { DateTime now = DateTime.Now; SComboBox<int> year = new SComboBox<int>(Maybe.Just(now.Year), Enumerable.Range(now.Year - 10, 21)); SComboBox<string> month = new SComboBox<string>(Maybe.Just(Months.Single(p => p.Value == now.Month).Key), Months.Keys); SComboBox<int> day = new SComboBox<int>(Maybe.Just(now.Day), Enumerable.Range(1, 31)); this.Children.Add(year); this.Children.Add(month); this.Children.Add(day); Cell<IMaybe<int>> monthIndex = month.SelectedItem.Map(m => m.Match(s => Maybe.Just(Months[s]), Maybe.Nothing<int>)); this.SelectedDate = year.SelectedItem.Lift(monthIndex, day.SelectedItem, (my, mm, md) => from y in my from m in mm from d in md select new DateTime(y, m, d)).Map(m => m.Match(v => v, () => DateTime.Now)); }
public Implementation(PetrolPumpWindow petrolPump) { SComboBox<IPump> logic = new SComboBox<IPump>( new IPump[] { new LifeCyclePump(), new AccumulatePulsesPump(), new ShowDollarsPump(), new ClearSalePump(), new KeypadPump(), new PresetAmountPump() }, p => p.GetType().FullName); petrolPump.LogicComboBoxPlaceholder.Children.Add(logic); STextField textPrice1 = new STextField("2.149") { Width = 100 }; petrolPump.Price1Placeholder.Children.Add(textPrice1); STextField textPrice2 = new STextField("2.341") { Width = 100 }; petrolPump.Price2Placeholder.Children.Add(textPrice2); STextField textPrice3 = new STextField("1.499") { Width = 100 }; petrolPump.Price3Placeholder.Children.Add(textPrice3); Func<string, double> parseDoubleSafe = s => { double n; if (double.TryParse(s, out n)) { return n; } return 0.0; }; StreamSink<Key> sKey = new StreamSink<Key>(); Dictionary<Key, FrameworkElement> containersByKey = new Dictionary<Key, FrameworkElement> { { Key.One, petrolPump.Keypad1Button }, { Key.Two, petrolPump.Keypad2Button }, { Key.Three, petrolPump.Keypad3Button }, { Key.Four, petrolPump.Keypad4Button }, { Key.Five, petrolPump.Keypad5Button }, { Key.Six, petrolPump.Keypad6Button }, { Key.Seven, petrolPump.Keypad7Button }, { Key.Eight, petrolPump.Keypad8Button }, { Key.Nine, petrolPump.Keypad9Button }, { Key.Zero, petrolPump.Keypad0Button }, { Key.Clear, petrolPump.KeypadClearButton } }; foreach (KeyValuePair<Key, FrameworkElement> containerAndKey in containersByKey) { containerAndKey.Value.MouseDown += async (sender, args) => { if (args.LeftButton == MouseButtonState.Pressed) { await Task.Run(() => sKey.Send(containerAndKey.Key)); } }; } CellLoop<UpDown> nozzle1 = new CellLoop<UpDown>(); CellLoop<UpDown> nozzle2 = new CellLoop<UpDown>(); CellLoop<UpDown> nozzle3 = new CellLoop<UpDown>(); Cell<double> calibration = Cell.Constant(0.001); Cell<double> price1 = textPrice1.Text.Map(parseDoubleSafe); Cell<double> price2 = textPrice2.Text.Map(parseDoubleSafe); Cell<double> price3 = textPrice3.Text.Map(parseDoubleSafe); CellSink<Stream<Unit>> csClearSale = new CellSink<Stream<Unit>>(Sodium.Stream.Never<Unit>()); Stream<Unit> sClearSale = csClearSale.SwitchS(); StreamSink<int> sFuelPulses = new StreamSink<int>(); Cell<Outputs> outputs = logic.SelectedItem.Map( pump => pump.Create(new Inputs( Operational.Updates(nozzle1), Operational.Updates(nozzle2), Operational.Updates(nozzle3), sKey, sFuelPulses, calibration, price1, price2, price3, sClearSale))); Cell<Delivery> delivery = outputs.Map(o => o.Delivery).SwitchC(); Cell<string> presetLcd = outputs.Map(o => o.PresetLcd).SwitchC(); Cell<string> saleCostLcd = outputs.Map(o => o.SaleCostLcd).SwitchC(); Cell<string> saleQuantityLcd = outputs.Map(o => o.SaleQuantityLcd).SwitchC(); Cell<string> priceLcd1 = outputs.Map(o => o.PriceLcd1).SwitchC(); Cell<string> priceLcd2 = outputs.Map(o => o.PriceLcd2).SwitchC(); Cell<string> priceLcd3 = outputs.Map(o => o.PriceLcd3).SwitchC(); Stream<Unit> sBeep = outputs.Map(o => o.SBeep).SwitchS(); Stream<Sale> sSaleComplete = outputs.Map(o => o.SSaleComplete).SwitchS(); SoundPlayer beepPlayer = new SoundPlayer(GetResourceStream(@"sounds\beep.wav")); this.listeners.Add(sBeep.Listen(_ => new Thread(() => beepPlayer.PlaySync()) { IsBackground = true }.Start())); SoundPlayer fastRumblePlayer = new SoundPlayer(GetResourceStream(@"sounds\fast.wav")); Action stopFast = () => { }; Action playFast = () => { ManualResetEvent mre = new ManualResetEvent(false); new Thread(() => { fastRumblePlayer.PlayLooping(); mre.WaitOne(); fastRumblePlayer.Stop(); }) { IsBackground = true }.Start(); stopFast = () => mre.Set(); }; SoundPlayer slowRumblePlayer = new SoundPlayer(GetResourceStream(@"sounds\slow.wav")); Action stopSlow = () => { }; Action playSlow = () => { ManualResetEvent mre = new ManualResetEvent(false); new Thread(() => { slowRumblePlayer.PlayLooping(); mre.WaitOne(); slowRumblePlayer.Stop(); }) { IsBackground = true }.Start(); stopSlow = () => mre.Set(); }; this.listeners.Add(delivery.Changes().Listen(d => { petrolPump.Dispatcher.InvokeIfNecessary(() => { if (d == Delivery.Fast1 || d == Delivery.Fast2 || d == Delivery.Fast3) { playFast(); } else { stopFast(); } if (d == Delivery.Slow1 || d == Delivery.Slow2 || d == Delivery.Slow3) { playSlow(); } else { stopSlow(); } }); })); StackPanel presetLcdStackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.PresetPlaceholder.Children.Add(presetLcdStackPanel); this.listeners.Add(presetLcd.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(presetLcdStackPanel, t, 5, true)))); StackPanel saleCostStackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.DollarsPlaceholder.Children.Add(saleCostStackPanel); this.listeners.Add(saleCostLcd.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(saleCostStackPanel, t, 5, true)))); StackPanel saleQuantityLcdStackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.LitersPlaceholder.Children.Add(saleQuantityLcdStackPanel); this.listeners.Add(saleQuantityLcd.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(saleQuantityLcdStackPanel, t, 5, true)))); StackPanel priceLcd1StackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.Fuel1Placeholder.Children.Add(priceLcd1StackPanel); this.listeners.Add(priceLcd1.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(priceLcd1StackPanel, t, 5, false)))); StackPanel priceLcd2StackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.Fuel2Placeholder.Children.Add(priceLcd2StackPanel); this.listeners.Add(priceLcd2.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(priceLcd2StackPanel, t, 5, false)))); StackPanel priceLcd3StackPanel = new StackPanel { Orientation = Orientation.Horizontal }; petrolPump.Fuel3Placeholder.Children.Add(priceLcd3StackPanel); this.listeners.Add(priceLcd3.Listen(t => petrolPump.Dispatcher.InvokeIfNecessary(() => petrolPump.SetLcdDigits(priceLcd3StackPanel, t, 5, false)))); Dictionary<CellLoop<UpDown>, Image> nozzles = new Dictionary<CellLoop<UpDown>, Image> { { nozzle1, petrolPump.Nozzle1Image }, { nozzle2, petrolPump.Nozzle2Image }, { nozzle3, petrolPump.Nozzle3Image } }; this.listeners.AddRange(nozzles.Select(nozzle => nozzle.Key.Listen(p => petrolPump.Dispatcher.InvokeIfNecessary(() => nozzle.Value.Margin = p == UpDown.Up ? new Thickness(0, 0, 0, 0) : new Thickness(0, 30, 0, 0))))); foreach (KeyValuePair<CellLoop<UpDown>, Image> nozzle in nozzles) { StreamSink<Unit> nozzleClicks = new StreamSink<Unit>(); nozzle.Value.MouseDown += async (sender, args) => { if (args.LeftButton == MouseButtonState.Pressed) { await Task.Run(() => nozzleClicks.Send(Unit.Value)); } }; nozzle.Key.Loop(nozzleClicks.Snapshot(nozzle.Key, (_, n) => n == UpDown.Down ? UpDown.Up : UpDown.Down).Hold(UpDown.Down)); } this.listeners.Add(sSaleComplete.Listen(sale => { Task.Run(() => { petrolPump.Dispatcher.InvokeIfNecessary(() => { SaleCompleteDialog dialog = new SaleCompleteDialog( sale.Fuel.ToString(), Formatters.FormatPrice(sale.Price, null), Formatters.FormatSaleCost(sale.Cost), Formatters.FormatSaleQuantity(sale.Quantity)); dialog.Owner = petrolPump; csClearSale.Send(dialog.SOkClicked); dialog.Show(); IListener l = null; // ReSharper disable once RedundantAssignment l = dialog.SOkClicked.Listen(_ => { petrolPump.Dispatcher.InvokeIfNecessary(() => dialog.Close()); // ReSharper disable once AccessToModifiedClosure using (l) { } }); }); }); })); Task.Run(async () => { while (true) { Transaction.RunVoid(() => { switch (delivery.Sample()) { case Delivery.Fast1: case Delivery.Fast2: case Delivery.Fast3: sFuelPulses.Send(40); break; case Delivery.Slow1: case Delivery.Slow2: case Delivery.Slow3: sFuelPulses.Send(2); break; } }); await Task.Delay(200).ConfigureAwait(false); } // ReSharper disable once FunctionNeverReturns }); }