private void UpdateWin2DCanvas()
{
if (unloaded)
{
return;
}
if (ItemsPanelRoot is GooeyButtonItemsPanel panel)
{
if (this.panel == null)
{
this.panel = panel;
}
if (Win2DCanvas == null)
{
Win2DCanvas = new CanvasAnimatedControl();
Win2DHost.Children.Add(Win2DCanvas);
Win2DCanvas.IsHitTestVisible = false;
Win2DCanvas.CreateResources += OnWin2DCreateResources;
Win2DCanvas.Draw += OnWin2DDraw;
}
var radius = panel.Children.Count == 0 ? 0 : panel.Children.Max(c => c.RenderSize.IsEmpty ? 0 : Math.Max(c.RenderSize.Width, c.RenderSize.Height));
var size = (Distance + radius * 4) * 2;
Win2DCanvas.Width = size;
Win2DCanvas.Height = size;
property.CenterPoint = new Vector2((float)size / 2);
Canvas.SetLeft(Win2DCanvas, -size / 2);
Canvas.SetTop(Win2DCanvas, -size / 2);
}
}
private void OnUnloaded(object sender, RoutedEventArgs e)
{
unloaded = true;
Win2DCanvas.Draw -= OnWin2DDraw;
Win2DCanvas.Paused = true;
panel = null;
Win2DCanvas.RemoveFromVisualTree();
Win2DHost.Children.Remove(Win2DCanvas);
Win2DCanvas = null;
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
if (ItemsPanelRoot is GooeyButtonItemsPanel panel)
{
if (this.panel == null)
{
this.panel = panel;
}
panel.Distance = Distance;
panel.Expanded = Expanded;
panel.ItemsPosition = ItemsPosition;
panel.ItemsAnimationStarted += OnItemsAnimationStarted;
panel.ItemsAnimationCompleted += OnItemsAnimationCompleted;
panel.Unloaded += OnItemsPanelUnloaded;
}
UpdateStoryboards();
UpdateProperty();
ResetItemsProperty();
UpdateWin2DCanvas();
}