/// <summary>
/// Sets the value of the attached <see cref="NameScopeProperty"/> on a visual.
/// </summary>
/// <param name="visual">The visual.</param>
/// <param name="value">The value to set.</param>
public static void SetNameScope(Visual visual, INameScope value)
{
visual.SetValue(NameScopeProperty, value);
}
/// <summary>
/// Sets the visual parent of the Visual.
/// </summary>
/// <param name="value">The visual parent.</param>
private void SetVisualParent(Visual value)
{
if (_visualParent == value)
{
return;
}
var old = _visualParent;
_visualParent = value;
if (VisualRoot != null)
{
var e = new VisualTreeAttachmentEventArgs(VisualRoot);
NotifyDetachedFromVisualTree(e);
}
if (_visualParent is IRenderRoot || _visualParent?.IsAttachedToVisualTree == true)
{
var root = this.GetVisualAncestors().OfType<IRenderRoot>().FirstOrDefault();
var e = new VisualTreeAttachmentEventArgs(root);
NotifyAttachedToVisualTree(e);
}
RaisePropertyChanged(VisualParentProperty, old, value, BindingPriority.LocalValue);
}
/// <summary>
/// Sets the visual parent of the Visual.
/// </summary>
/// <param name="value">The visual parent.</param>
private void SetVisualParent(Visual value)
{
if (this.visualParent != value)
{
var old = this.visualParent;
var oldRoot = this.GetVisualAncestors().OfType<IRenderRoot>().FirstOrDefault();
var newRoot = default(IRenderRoot);
if (value != null)
{
newRoot = value.GetSelfAndVisualAncestors().OfType<IRenderRoot>().FirstOrDefault();
}
this.visualParent = value;
if (oldRoot != null)
{
this.NotifyDetachedFromVisualTree(oldRoot);
}
if (newRoot != null)
{
this.NotifyAttachedToVisualTree(newRoot);
}
}
}
/// <summary>
/// Gets the value of the attached <see cref="NameScopeProperty"/> on a visual.
/// </summary>
/// <param name="visual">The visual.</param>
/// <returns>The value of the NameScope attached property.</returns>
public static INameScope GetNameScope(Visual visual)
{
return visual.GetValue(NameScopeProperty);
}
/// <summary>
/// Sets the visual parent of the Visual.
/// </summary>
/// <param name="value">The visual parent.</param>
private void SetVisualParent(Visual value)
{
if (_visualParent != value)
{
var old = _visualParent;
var oldRoot = this.GetVisualAncestors().OfType<IRenderRoot>().FirstOrDefault();
var newRoot = default(IRenderRoot);
if (value != null)
{
newRoot = value.GetSelfAndVisualAncestors().OfType<IRenderRoot>().FirstOrDefault();
}
_visualParent = value;
if (oldRoot != null)
{
NotifyDetachedFromVisualTree(oldRoot);
}
if (newRoot != null)
{
NotifyAttachedToVisualTree(newRoot);
}
RaisePropertyChanged(VisualParentProperty, old, value, BindingPriority.LocalValue);
}
}
/// <summary>
/// Sets the visual parent of the Visual.
/// </summary>
/// <param name="value">The visual parent.</param>
private void SetVisualParent(Visual value)
{
if (_visualParent == value)
{
return;
}
var old = _visualParent;
if (_isAttachedToVisualTree)
{
var oldArgs = GetAttachmentEventArgs();
_visualParent = value;
if (oldArgs != null)
{
NotifyDetachedFromVisualTree(oldArgs);
}
}
else
{
_visualParent = value;
}
if (_visualParent is IRenderRoot || _visualParent?.IsAttachedToVisualTree == true)
{
var newArgs = GetAttachmentEventArgs();
if (newArgs != null)
{
NotifyAttachedToVisualTree(newArgs);
}
}
RaisePropertyChanged(VisualParentProperty, old, value, BindingPriority.LocalValue);
}
/// <summary>
/// Removes a visual child from the control;
/// </summary>
/// <param name="visual">The child to remove.</param>
protected void RemoveVisualChild(Visual visual)
{
Contract.Requires<ArgumentNullException>(visual != null);
this.visualChildren.Remove(visual);
}
protected virtual void OnVisualParentChanged(Visual oldParent)
{
}
/// <summary>
/// Sets the visual parent of the Visual.
/// </summary>
/// <param name="value">The visual parent.</param>
private void SetVisualParent(Visual value)
{
if (_visualParent != value)
{
var oldArgs = GetAttachmentEventArgs();
_visualParent = value;
if (oldArgs != null)
{
NotifyDetachedFromVisualTree(oldArgs);
}
var newArgs = GetAttachmentEventArgs();
if (newArgs != null)
{
NotifyAttachedToVisualTree(newArgs);
}
RaisePropertyChanged(VisualParentProperty, oldArgs, value, BindingPriority.LocalValue);
}
}
/// <summary>
/// Sets the value of the attached <see cref="NameScopeProperty"/> on a visual.
/// </summary>
/// <param name="visual">The visual.</param>
/// <param name="value">The value to set.</param>
public static void SetNameScope(Visual visual, INameScope value)
{
visual.SetValue(NameScopeProperty, value);
}
/// <summary>
/// Gets the value of the attached <see cref="NameScopeProperty"/> on a visual.
/// </summary>
/// <param name="visual">The visual.</param>
/// <returns>The value of the NameScope attached property.</returns>
public static INameScope GetNameScope(Visual visual)
{
return(visual.GetValue(NameScopeProperty));
}
