/// <summary>
/// Invoked when an unhandled <see cref="E:System.Windows.UIElement.MouseLeftButtonDown" /> routed event is raised on this element. Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">The <see cref="T:System.Windows.Input.MouseButtonEventArgs" /> that contains the event data. The event data reports that the left mouse button was pressed.</param>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
_lastMouseDownHotArea = null;
base.OnMouseLeftButtonDown(e);
var mousePosition = e.GetPosition(this);
if (mousePosition.X < 0d || mousePosition.Y < 0d || mousePosition.X > Width || mousePosition.Y > Height) return;
foreach (var hotArea in _hotAreas)
if (hotArea.AreaRectangle.Contains(mousePosition))
{
_lastMouseDownHotArea = hotArea;
if (hotArea.MouseDown != null)
{
hotArea.MouseDown(this, e);
if (e.Handled)
{
_lastMouseDownHotArea = null;
break;
}
}
}
}
/// <summary>Adds a hot area to the overall list</summary>
/// <param name="hotArea">The hot area.</param>
public void AddHotArea(HotArea hotArea)
{
_hotAreas.Add(hotArea);
}