Mercurial > silverbladetech

annotate MetroWpf/FxRates.UI/ViewModels/FxRatesViewModel.cs @ 100:9b6855dc165e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Updated System.Windows into Libs
author stevenhollidge <stevenhollidge@hotmail.com>
date Sat, 05 May 2012 23:04:16 +0100
parents a8b50a087544
children
rev   line source
24
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
1 using System;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
2 using System.ComponentModel;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
3 using System.Linq;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
4 using System.Reactive;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
5 using System.Reactive.Linq;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
6 using System.Windows.Input;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
7 using FxRates.Common;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
8 using FxRates.UI.Models;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
9 using GalaSoft.MvvmLight;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
10 using GalaSoft.MvvmLight.Command;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
11
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
12 namespace FxRates.UI.ViewModels
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
13 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
14 public class FxRatesViewModel : ViewModelBase
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
15 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
16 private IPricingService pricingService;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
17
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
18 public BindingList<DisplayFxRate> DisplayFxRates { get; set; }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
19 public ICommand ServiceRunningCommand { get; set; }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
20 public ICommand SubscriptionCommand { get; set; }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
21
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
22 public FxRatesViewModel(IPricingService service)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
23 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
24 pricingService = service;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
25 GetLatestPrices();
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
26
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
27 SubscriptionCommand = new RelayCommand(SubscriptionCommand_Execute);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
28 ServiceRunningCommand = new RelayCommand(ServiceRunningCommand_Execute);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
29
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
30 var priceUpdates = Observable.FromEventPattern<PriceUpdateEventArgs>(
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
31 pricingService, "PriceUpdate");
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
32
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
33 priceUpdates.Where(e => (Subscribed)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
34 // && (e.EventArgs.LatestPrice.Ccy == Ccy.EURtoGBP) example of filter
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
35 )
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
36 //.Throttle(TimeSpan.FromSeconds(1)) example of throttling
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
37 .Subscribe(PriceUpdate);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
38 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
39
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
40 public void PriceUpdate(EventPattern<PriceUpdateEventArgs> e)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
41 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
42 var displayRate = DisplayFxRates.First(rate => rate.Ccy == e.EventArgs.LatestPrice.Ccy);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
43
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
44 if (displayRate != null)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
45 displayRate.Update(e.EventArgs.LatestPrice);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
46 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
47
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
48
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
49 private void GetLatestPrices()
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
50 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
51 DisplayFxRates = new BindingList<DisplayFxRate>();
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
52 var currentRates = pricingService.GetFullCurrentPrices();
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
53 foreach (var latestRate in currentRates)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
54 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
55 var displayRate = DisplayFxRate.Create(latestRate);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
56 DisplayFxRates.Add(displayRate);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
57 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
58 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
59
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
60 private const string SubscribedPropertyName = "Subscribed";
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
61 private bool _subscribed = false;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
62 public bool Subscribed
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
63 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
64 get { return _subscribed; }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
65 set
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
66 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
67 if (_subscribed == value) return;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
68 _subscribed = value;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
69 RaisePropertyChanged(SubscribedPropertyName);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
70 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
71 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
72
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
73 private const string ServiceRunningPropertyName = "ServiceRunning";
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
74 private bool _serviceRunning;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
75 public bool ServiceRunning
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
76 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
77 get
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
78 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
79 return _serviceRunning;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
80 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
81 set
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
82 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
83 if (_serviceRunning == value) return;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
84 _serviceRunning = value;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
85 RaisePropertyChanged(ServiceRunningPropertyName);
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
86 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
87 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
88
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
89 void ServiceRunningCommand_Execute()
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
90 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
91 if (pricingService.IsRunning)
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
92 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
93 pricingService.Stop();
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
94 ServiceRunning = false;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
95 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
96 else
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
97 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
98 pricingService.Start();
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
99 ServiceRunning = true;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
100 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
101 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
102
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
103 void SubscriptionCommand_Execute()
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
104 {
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
105 //toggle subscribed
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
106 Subscribed = !Subscribed;
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
107 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
108 }
a8b50a087544 Stocks and FxRates working, new menu introduced. Working nicely so far
adminsh@apollo
parents:
diff changeset
109 }