Forums | NoesisGUI

<Grid
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Grid.Resources>
        <ImageBrush x:Key="arrowCursor" ImageSource="icons/arrow.png"/>
        <!-- ... -->
    </Grid.Resources>

    <Grid x:Name="LayoutRoot">
        <!-- ... -->
    </Grid>

    <Canvas>
        <Rectangle x:Name="cursor" Fill="{StaticResource arrowCursor}" IsHitTestVisible="False"
            Canvas.Left="0" Canvas.Top="0" Width="32" Height="32"/>
    </Canvas>
</Grid>

UIElement* element; // an element of the UI tree
//...
UIElement* captured = element->GetMouse()->GetCaptured();
if (captured != 0)
{
  // mouse is captured by 'captured' element
}
else
{
  // mouse is not captured
}

	// list of cursor types
	public enum UiCursor : int
	{
		None = 0,
		Pointer = 1,
		Attack = 2,
		Speak = 3
                // you can add other types of cursors
	}

	public class CursorService : DependencyObject
	{
		#region Static Fields

		public static DependencyProperty CursorProperty = DependencyProperty.RegisterAttached(
			"Cursor",
			typeof(UiCursor),
			typeof(CursorService),
			new FrameworkPropertyMetadata(UiCursor.None, CursorAttachedHandler));

		#endregion

		#region Public Methods and Operators

		public static UiCursor GetCursor(FrameworkElement element)
		{
			return (UiCursor)element.GetValue(CursorProperty);
		}

		public static void RegisterCursor(FrameworkElement frameworkElement)
		{
			frameworkElement.MouseEnter += FrameworkElementMouseEnterHandler;
		}

		public static void SetCursor(FrameworkElement element, UiCursor value)
		{
			element.SetValue(CursorProperty, value);
		}

		#endregion

		#region Methods

		private static void CursorAttachedHandler(DependencyObject obj, DependencyPropertyChangedEventArgs e)
		{
			RegisterCursor((FrameworkElement)obj);
		}

		private static void FrameworkElementMouseEnterHandler(object sender, MouseEventArgs e)
		{
			FrameworkElement frameworkElement = (FrameworkElement)sender;
			UiCursor cursor = (UiCursor)frameworkElement.GetValue(CursorProperty);

			frameworkElement.MouseLeave += FrameworkElementMouseLeaveHandler;
			frameworkElement.Unloaded += FrameworkElementMouseUnloadedHandler;

			CursorServiceEvents.OnCursorEnter(frameworkElement, cursor);
		}

		private static void FrameworkElementMouseLeaveHandler(object sender, MouseEventArgs e)
		{
			FrameworkElement frameworkElement = (FrameworkElement)sender;
			ResetCursor(frameworkElement);
		}

		private static void FrameworkElementMouseUnloadedHandler(object sender, RoutedEventArgs arg1)
		{
			FrameworkElement frameworkElement = (FrameworkElement)sender;
			ResetCursor(frameworkElement);
		}

		private static void ResetCursor(FrameworkElement frameworkElement)
		{
			frameworkElement.MouseLeave -= FrameworkElementMouseLeaveHandler;
			frameworkElement.Unloaded -= FrameworkElementMouseUnloadedHandler;

			CursorServiceEvents.OnCursorLeave(frameworkElement);
		}

		#endregion
	}

	public static class CursorServiceEvents
	{
		#region Public Events

		public static event Action<FrameworkElement, UiCursor> CursorEnter;

		public static event Action<FrameworkElement> CursorLeave;

		#endregion

		#region Public Methods and Operators

		public static void OnCursorEnter(FrameworkElement arg1, UiCursor arg2)
		{
			Action<FrameworkElement, UiCursor> handler = CursorEnter;
			if (handler != null)
			{
				handler(arg1, arg2);
			}
		}

		public static void OnCursorLeave(FrameworkElement obj)
		{
			Action<FrameworkElement> handler = CursorLeave;
			if (handler != null)
			{
				handler(obj);
			}
		}

		#endregion
	}

	public static class CursorManager
	{
		static CursorManager()
		{
			CursorServiceEvents.CursorEnter += this.CursorEnterHandler;
			CursorServiceEvents.CursorLeave += this.CursorLeaveHandler;
		}

		private void CursorEnterHandler(FrameworkElement frameworkElement, UiCursor cursor)
		{
			switch (cursor)
			{
				// set cursor depending on cursor type
			}
		}

		private void CursorLeaveHandler(FrameworkElement frameworkElement)
		{
 			// reset cursor to previous
		}
	}

<Button Content="Attack me" services:CursorService.Cursor="Attack" />

<Style x:Key="ButtonAttackStyle" TargetType="{x:Type Button}">
        <Setter Property="services:CursorService.Cursor" Value="Attack" />
</Style>