/// <summary>
/// Removes a visual child from this object.
/// </summary>
/// <param name="child">The child object to remove from this object.</param>
protected internal void RemoveVisualChild(Visual child)
{
if (child == null || child.visualParent == null)
{
return;
}
if (child.visualParent == this)
{
child.visualParent = null;
child.OnVisualParentChangedInternal(this, null);
}
}
/// <summary>
/// Adds a visual as a child of this object.
/// </summary>
/// <param name="child">The child object to add to this object.</param>
protected internal void AddVisualChild(Visual child)
{
if (child == null)
{
return;
}
if (child.visualParent != null)
{
throw new InvalidOperationException(PresentationStrings.VisualAlreadyHasAParent);
}
if (child.visualParent != this)
{
var oldParent = child.visualParent;
var newParent = this;
child.visualParent = newParent;
child.OnVisualParentChangedInternal(oldParent, newParent);
}
}
/// <summary>
/// Removes a visual child from this object.
/// </summary>
/// <param name="child">The child object to remove from this object.</param>
protected internal void RemoveVisualChild(Visual child)
{
if (child == null || child.visualParent == null)
return;
if (child.visualParent == this)
{
child.visualParent = null;
child.OnVisualParentChangedInternal(this, null);
}
}
/// <summary>
/// Adds a visual as a child of this object.
/// </summary>
/// <param name="child">The child object to add to this object.</param>
protected internal void AddVisualChild(Visual child)
{
if (child == null)
return;
if (child.visualParent != null)
throw new InvalidOperationException(PresentationStrings.VisualAlreadyHasAParent);
if (child.visualParent != this)
{
var oldParent = child.visualParent;
var newParent = this;
child.visualParent = newParent;
child.OnVisualParentChangedInternal(oldParent, newParent);
}
}
