/// <summary>
/// マウス左ボタンイベント離上イベント
/// ゴースト削除
/// </summary>
/// <param name="sender">対象Control</param>
/// <param name="e">マウスボタンイベントデータ</param>
private static void OnPreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (_Adorner != null)
{
_Adorner.AdornedElement.ReleaseMouseCapture();
_Adorner.Detach();
_Adorner = null;
}
}
/// <summary>
/// マウス左ボタン押下イベント
/// ゴーストを新規作成し表示
/// </summary>
/// <param name="sender">対象Control</param>
/// <param name="e">マウスボタンイベントデータ</param>
private static void OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (e.OriginalSource is FrameworkElement element)
{
var parent = FindAncestor <Panel>(element);
if (parent != null &&
sender is FrameworkElement adornedElement)
{
var point = e.GetPosition(adornedElement);
var offset = new Point((-1) * point.X, (-1) * point.Y);
_Adorner = new GhostAdorner(parent, adornedElement, point, offset);
adornedElement.CaptureMouse();
}
}
}
