private void DeleteLayer(IRenderer renderer)
{
var element = renderer.Element;
var parent = renderer.RendererParent.Element;
// Check Selected Parent
if (RendererTreeHelper
.FindParents <IRenderer>(renderer)
.Count(r => GroupSelector.IsSelected(r as FrameworkElement)) > 0)
{
return;
}
// * Task *
if (renderer is IRendererLayout lRenderer)
{
TaskManager?.Push(
new LayoutTaskData(
RendererTaskType.Remove,
lRenderer,
() => RemoveElement(parent, element, true),
() => AddElement(parent, element, true),
() => RemoveElement(parent, element)));
}
else if (renderer is IRendererElement eRenderer)
{
TaskManager?.Push(
new ElementTaskData(
RendererTaskType.Remove,
eRenderer,
() => RemoveElement(parent, element, true),
() => AddElement(parent, element, true),
() => RemoveElement(parent, element)));
}
}
private void MoveThumb_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Keyboard.Focus(Storyboard);
if (!GroupSelector.IsSelected(this))
{
cancelNextInvert = true;
Select();
}
}
public void Select()
{
// Design Mode Change
if (GroupSelector.IsSelected(this))
{
InvertDesignMode();
}
// Select
GroupSelector.Select(this, true,
multiSelect: Keyboard.IsKeyDown(Key.LeftShift));
}
/// <summary>
/// Parent의 자식으로 등록된 Element를 삭제하고 <see cref="IRenderer"/> 및 레이어를 삭제합니다.
/// </summary>
/// <param name="parent"></param>
/// <param name="element"></param>
public void RemoveElement(FrameworkElement parent, FrameworkElement element, bool pushTask = false)
{
IRenderer parentRenderer = parent.GetRenderer();
IRenderer childRenderer = element.GetRenderer();
// Selection Check
if (GroupSelector.IsSelected(childRenderer as FrameworkElement))
{
GroupSelector.Select(childRenderer as SelectionLayer, false);
}
// Remove On AdornerLayer
element.RemoveAdorner((Adorner)childRenderer);
if (!pushTask)
{
// Dispose
DestroyElement(parent, element);
}
if (parent.DataContext != null && parent.DataContext is DependencyObject dataContext)
{
// Remove On PObject Parent
ObjectContentHelper.GetContent(
dataContext,
pi => pi.SetValue(dataContext, null), // Single Content
list => list.SafeRemove(element.DataContext)); // List Content
}
// Remove On WPF Parent
ObjectContentHelper.GetContent(
parent,
pi => pi.SetValue(parent, null), // Single Content
list => list.SafeRemove(element)); // List Content
RemoveElementCore(childRenderer);
// Notice child removed
parentRenderer?.RemoveChild(childRenderer);
}
