/// <summary>
/// Calls the <see cref="OnAttachedToVisualTree(VisualTreeAttachmentEventArgs)"/> method
/// for this control and all of its visual descendants.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnAttachedToVisualTreeCore(VisualTreeAttachmentEventArgs e)
{
Logger.TryGet(LogEventLevel.Verbose)?.Log(LogArea.Visual, this, "Attached to visual tree");
_visualRoot = e.Root;
if (RenderTransform != null)
{
RenderTransform.Changed += RenderTransformChanged;
}
OnAttachedToVisualTree(e);
AttachedToVisualTree?.Invoke(this, e);
InvalidateVisual();
var visualChildren = VisualChildren;
if (visualChildren != null)
{
var visualChildrenCount = visualChildren.Count;
for (var i = 0; i < visualChildrenCount; i++)
{
if (visualChildren[i] is Visual child)
{
child.OnAttachedToVisualTreeCore(e);
}
}
}
}
/// <summary>
/// Called when the control is added to a visual tree.
/// </summary>
/// <param name="e">The event args.</param>
/// <remarks>
/// It is vital that if you override this method you call the base implementation;
/// failing to do so will cause numerous features to not work as expected.
/// </remarks>
protected virtual void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{
if (RenderTransform != null)
{
RenderTransform.Changed += RenderTransformChanged;
}
AttachedToVisualTree?.Invoke(this, e);
}
/// <summary>
/// Calls the <see cref="OnAttachedToVisualTree(VisualTreeAttachmentEventArgs)"/> method
/// for this control and all of its visual descendants.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnAttachedToVisualTreeCore(VisualTreeAttachmentEventArgs e)
{
Logger.Verbose(LogArea.Visual, this, "Attached to visual tree");
_visualRoot = e.Root;
if (RenderTransform != null)
{
RenderTransform.Changed += RenderTransformChanged;
}
OnAttachedToVisualTree(e);
AttachedToVisualTree?.Invoke(this, e);
InvalidateVisual();
if (VisualChildren != null)
{
foreach (Visual child in VisualChildren.OfType <Visual>())
{
child.OnAttachedToVisualTreeCore(e);
}
}
}
/// <summary>
/// Called when the control is added to a visual tree.
/// </summary>
/// <param name="e">The event args.</param>
protected virtual void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{
AttachedToVisualTree?.Invoke(this, e);
}