public void Add(View view)
{
if (view == null)
{
return;
}
view.Parent = this;
view.Navigation = Parent as NavigationView ?? Parent?.Navigation;
_views.Add(view);
ChildrenChanged?.Invoke(this, new LayoutEventArgs(_views.Count - 1, 1));
}
public Expression(TextFormatting format = TextFormatting.None)
{
//BackgroundColor = Color.LightGreen;
Orientation = StackOrientation.Horizontal;
HorizontalOptions = LayoutOptions.Center;
VerticalOptions = LayoutOptions.Center;
Spacing = 0;
TextFormat = format;
ChildAdded += (sender, e) => ChildrenChanged?.Invoke(sender, e, true);
ChildRemoved += (sender, e) => ChildrenChanged?.Invoke(sender, e, false);
//ChildrenChanged += delegate { CheckPadding(); };
//CheckPadding();
}
protected virtual void OnChildrenChanged()
{
ChildrenChanged?.Invoke(this, EventArgs.Empty);
}
/// <summary> /// Raises an event to notify the automation client the the children of the peer have changed. /// </summary> protected void RaiseChildrenChangedEvent() => ChildrenChanged?.Invoke(this, EventArgs.Empty);
protected override void OnVisualChildrenChanged(DependencyObject visualAdded, DependencyObject visualRemoved)
{
base.OnVisualChildrenChanged(visualAdded, visualRemoved);
ChildrenChanged?.Invoke();
}
protected internal virtual void OnChildrenChanged(SimpleTreeItem simpleTreeItem)
{
ChildrenChanged?.Invoke(this, new TreeItemEventArgs(simpleTreeItem));
}
private void OnTransformChildrenChanged()
{
ChildrenChanged?.Invoke();
}
