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POHow to bind method to a HoverButton?
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  1. POHow to bind method to a HoverButton?
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    copied!<p>I've been looking for hours but I can't find anything useful. Any help appreciated!</p> <p>I'm writing a Kinect application using WPF with the Coding4Fun toolkit and the MVVM pattern.</p> <p>I'd like to put all my kinect related logic in my ViewModel and bind those methods to a HoverButton (found in the C4F toolkit). A normal button had the 'Command' property, However the HoverButton does not.</p> <p>So in short:</p> <p>I want to bind the click event of a HoverButton to a method in my ViewModel.</p> <p><strong>My XAML:</strong></p> <pre><code>&lt;Window x:Class="KinectTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:fun="clr-namespace:Coding4Fun.Kinect.Wpf.Controls;assembly=Coding4Fun.Kinect.Wpf" Title="MainWindow" Height="350" Width="525" Loaded="WindowLoaded" Closed="WindowClosed" Cursor="None" &gt; &lt;Grid Name="MainGrid" MouseMove="GridHoverMouseMove" DataContext="_viewModel"&gt; &lt;Canvas Name="SkeletonCanvas" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Background="Black"&gt; &lt;fun:HoverButton Name="KinectUp" ImageSource="/Images/blue_glass.png" ActiveImageSource="/Images/blue_glass.png" ImageSize="100" Canvas.Top="26" TimeInterval="1000"&gt; &lt;/fun:HoverButton&gt; &lt;fun:HoverButton Name="KinectDown" ImageSource="/Images/red_glass.png" ActiveImageSource="/Images/red_glass.png" ImageSize="100" Canvas.Bottom="26" TimeInterval="1000"/&gt; &lt;/Canvas&gt; &lt;Image Name="ColorImage" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="120" Height="120"&gt;&lt;/Image&gt; &lt;TextBlock Name="Notification" Foreground="White" FontSize="50" VerticalAlignment="Top" HorizontalAlignment="Stretch" TextAlignment="Center" Text="{Binding Path=Notification, Mode=TwoWay}"&gt;&lt;/TextBlock&gt; &lt;Canvas Name="CanvMouse" Background="Transparent" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"&gt; &lt;Image Name="imgMouse" Width="70" Source="/Images/handround_green.png"&gt;&lt;/Image&gt; &lt;/Canvas&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p><strong>My ViewModel:</strong></p> <pre><code>internal class MainViewModel : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public ICommand KinectUpClick { get; private set; } public ICommand KinectDownClick { get; private set; } private string _notification = "Hello"; public SensorHelper SensorHelper { get; set; } public string Notification { get { return _notification; } set { _notification = value; PropertyChanged(this, new PropertyChangedEventArgs("Notification")); } } public MainViewModel() { KinectUpClick = new RelayCommand(PerformKinectUpClick, CanKinectUpClick); KinectDownClick = new RelayCommand(PerformKinectDownClick, CanKinectDownClick); } private bool CanKinectUpClick(object parameter) { return SensorHelper.CanMoveUp; } private bool CanKinectDownClick(object parameter) { return SensorHelper.CanMoveDown; } private void PerformKinectUpClick(object parameter) { ThreadPool.QueueUserWorkItem((o) =&gt; { Notification = "Kinect goes up!"; SensorHelper.MoveAngle(5); Notification = "Kinect ready..."; }); } private void PerformKinectDownClick(object parameter) { ThreadPool.QueueUserWorkItem((o) =&gt; { Notification = "Kinect goes down!"; SensorHelper.MoveAngle(-5); Notification = "Kinect ready..."; }); ; } } } </code></pre> <p><strong>My Code-behind:</strong></p> <pre><code>public partial class MainWindow : Window { private readonly MainViewModel _viewModel; private SensorHelper _sensorHelper; public MainWindow() { InitializeComponent(); _viewModel = new MainViewModel(); MainGrid.DataContext = _viewModel; } private void WindowLoaded(object sender, RoutedEventArgs e) { try { _sensorHelper = new SensorHelper(); } catch (Exception exception) { MessageBox.Show(exception.Message); } _viewModel.SensorHelper = _sensorHelper; _sensorHelper.InitializeSkeleton(ref SkeletonCanvas); //_sensorHelper.CaptureMouse(CanvMouse); _sensorHelper.InitializeColorFrame(ColorImage); _sensorHelper.StartKinect(); } private void WindowClosed(object sender, EventArgs eventArgs) { _sensorHelper.StopKinect(); } private void GridHoverMouseMove(object sender, MouseEventArgs e) { imgMouse.SetValue(Canvas.LeftProperty, e.GetPosition(CanvMouse).X - imgMouse.ActualWidth/2); imgMouse.SetValue(Canvas.TopProperty, e.GetPosition(CanvMouse).Y - imgMouse.ActualHeight/2); MouseHelper.CheckButton(KinectUp, imgMouse); MouseHelper.CheckButton(KinectDown, imgMouse); } } </code></pre>
 

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