MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Windows.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Diagnostics;
using System.Runtime.InteropServices;
using Windows.UI.Xaml.Controls.Primitives;

namespace FingersApp
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        Fingers fingers;
        private bool closing = false;
        //Thread FingersThread;

        [DllImport("user32.dll")]
        internal static extern IntPtr SetForegroundWindow(IntPtr hWnd);

        public MainWindow()
        {
            CheckMultipleInstanceofApp();
            InitializeComponent();
        }

        private async void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            if (closing)
            {
                return;
            }

            e.Cancel = true;
            if (fingers != null)
                await fingers.Closing();
            closing = true;
            Close();
        }

        private bool CheckMultipleInstanceofApp()
        {
            Process[] prc = null;
            string ModName, ProcName;
            Process current = Process.GetCurrentProcess();
            ModName = current.MainModule.ModuleName;
            ProcName = System.IO.Path.GetFileNameWithoutExtension(ModName);
            prc = Process.GetProcessesByName(ProcName);
            if (prc.Length <= 1)
                return false;

            for (int i = 0; i < prc.Length; i++)
            {
                if (prc[i] == current) continue;
                IntPtr hWnd = prc[i].MainWindowHandle;
                if (hWnd != IntPtr.Zero)
                    SetForegroundWindow(hWnd);
            }
                
            System.Environment.Exit(0);
            return true;
        }

        private void Page_Loaded(object sender, RoutedEventArgs e)
        {
            Task workerTask = Task.Run(() => { fingers = new Fingers(this); });

            /*
            FingersThread = new Thread(() =>
            {
                fingers = new Fingers(this);
            });
            FingersThread.IsBackground = true;
            FingersThread.Start();
            */
        }

        public void SetLeapStatus(String status)
        {
            LeapStatus.Text = status;
        }

        private void SetRingStatus(TextBlock ring, RingStatus status, ulong addr, uint batt)
        {
            if (status == RingStatus.CONNECTED)
            {
                ring.Text = addr.ToString("X").Substring(8);
                float volts = (batt / 100f);
                ring.ToolTip = (batt > 0) ? String.Format("{0:N2}v", volts) : "";
            }
            else
            {
                ring.Text = status == RingStatus.CONNECTING ? "CONNECTING" : "SEARCHING";
                ring.ToolTip = "";
            }
        }
        public void SetLeftRingStatus(RingStatus status, ulong addr, uint batt)
        {
            SetRingStatus(LeftRingStatus, status, addr, batt);
        }
        public void SetRightRingStatus(RingStatus status, ulong addr, uint batt)
        {
            SetRingStatus(RightRingStatus, status, addr, batt);
        }

        public void SetSensitivityDisplay(float sens)
        {
            Debug.WriteLine("Updating slider: {0}", sens);
            SensitivitySlider.Value = (double)sens;
        }

        public void SetButtonStatus(LoopButton b, Boolean pressed, Boolean rightHand)
        {
            ImageSource img = (ImageSource)(pressed ? FindResource("IndicatorOn") : FindResource("IndicatorOff"));

            if (rightHand)
            {
                if (b == LoopButton.CENTER) RightRingBtnCenter.Source = img;
                else if (b == LoopButton.FWD) RightRingBtnFwd.Source = img;
                else if (b == LoopButton.BACK) RightRingBtnBack.Source = img;
                else if (b == LoopButton.UP) RightRingBtnUp.Source = img;
                else if (b == LoopButton.DOWN) RightRingBtnDown.Source = img;
            } else
            {
                if (b == LoopButton.CENTER) LeftRingBtnCenter.Source = img;
                else if (b == LoopButton.FWD) LeftRingBtnFwd.Source = img;
                else if (b == LoopButton.BACK) LeftRingBtnBack.Source = img;
                else if (b == LoopButton.UP) LeftRingBtnUp.Source = img;
                else if (b == LoopButton.DOWN) LeftRingBtnDown.Source = img;
            }
        }

        public void SelectLeapProfile(String name)
        {
            LeapProfileSelector.SelectedIndex =
                LeapProfileSelector.Items.Cast<ComboBoxItem>()
                    .Select(c => (string)c.Content)
                    .ToList()
                    .IndexOf(name);
        }

        private void Swap(object sender, RoutedEventArgs e)
        {
            
            fingers.SwapRings(); // Not threadsafe

            ImageSource img = (ImageSource)FindResource("IndicatorOff");
            LeftRingBtnCenter.Source = img;
            LeftRingBtnFwd.Source = img;
            LeftRingBtnBack.Source = img;
            LeftRingBtnUp.Source = img;
            LeftRingBtnDown.Source = img;
            RightRingBtnCenter.Source = img;
            RightRingBtnFwd.Source = img;
            RightRingBtnBack.Source = img;
            RightRingBtnUp.Source = img;
            RightRingBtnDown.Source = img;
        }

        private void LeapProfileSelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems.Count == 0) return;

            String text = (e.AddedItems[0] as ComboBoxItem).Content.ToString();

            // If fingers is null this is getting called from fingers' constructor as it
            // loads the previous data, so we don't need/want to call back to it
            if (text != null && fingers != null)
                fingers.SetLeapProfile(text, false);
        }

        private void SensitivityValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            if ((float)e.NewValue == (float)e.OldValue || fingers == null) return;

            fingers.SetSensitivity((float)e.NewValue);
        }
    }
}