private static void OnBusyStateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var element = d as FrameworkElement;
if (element != null)
{
var isBusy = (bool)e.NewValue;
if (isBusy)
{
var busyCtrl = new BusyControl();
Adorner adorner = new ControlAdorner(element, busyCtrl);
AdornerLayer.GetAdornerLayer(element).Add(adorner);
element.SetValue(AdornerProperty, adorner);
}
else
{
var adorner = element.GetValue(AdornerProperty) as Adorner;
if (adorner != null)
{
AdornerLayer.GetAdornerLayer(element).Remove(adorner);
element.SetValue(AdornerProperty, null);
}
}
}
}
protected override void Activate(ModelItem item)
{
designObject = item.GetCurrentValue() as LinkableControl;//获得被点击的控件对象
if (designObject != null)
{
designCanvas = designObject.Parent as Panel;
DesignerView v = DesignerView.FromContext(Context);
adorner = new ControlAdorner(designObject);
adorner.RenderTransform = new ScaleTransform(v.ZoomLevel, v.ZoomLevel);
foreach (var pin in adorner.Children)
{
pin.MouseLeftButtonDown += new MouseButtonEventHandler(Pin_MouseLeftButtonDown); //按下左键选中hitPin，开始拖动
pin.MouseMove += new MouseEventHandler(Pin_MouseMove); //移动鼠标，开始找寻目标连接节点
}
AdornerPanel.SetAdornerHorizontalAlignment(adorner, AdornerHorizontalAlignment.Stretch);
AdornerPanel.SetAdornerVerticalAlignment(adorner, AdornerVerticalAlignment.Stretch);
_panel.Children.Add(adorner);
Adorners.Add(_panel);
v.ZoomLevelChanged += (s, e) => { adorner.RenderTransform = new ScaleTransform(v.ZoomLevel, v.ZoomLevel); };
}
base.Activate(item);
}
private void Pin_MouseEnter(object sender, MouseEventArgs e)
{
_adornerLayer = AdornerLayer.GetAdornerLayer(this);
FrameworkElement element = DescriptionItemTemplate.LoadContent() as FrameworkElement;
if (element == null)
{
return;
}
element.DataContext = this.DataContext;
_adorner = new ControlAdorner(this, element);
_adornerLayer.Add(_adorner);
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
_adorner = new ControlAdorner(AssociatedObject, AdornerTemplate.LoadContent() as FrameworkElement,
AssociatedObject?.DataContext, AdornerProperties.GetAdornerContext(this));
_adorner.Margin = new Thickness(-6, 0, -6, 0);
HideAdorner();
Application.Current.MainWindow.PreviewMouseLeftButtonDown += OnPreviewMouseDown;
Application.Current.MainWindow.PreviewMouseLeftButtonUp += OnPreviewMouseUp;
Application.Current.MainWindow.PreviewMouseMove += OnPreviewMouseMove;
if (MouseEvent == OverlookMouseBehavior.OnMouseOverAndCtrl)
{
Application.Current.MainWindow.PreviewKeyDown += OnPreviewKeyDown;
}
}
private void Hide()
{
System.Diagnostics.Debug.WriteLine("Hide()");
RemoveMouseCapture(content);
RemoveMouseCapture(_keeper);
if (_adorner != null)
{
//System.Diagnostics.Debug.WriteLine("Hide() exists _adorner");
AdornerLayer.GetAdornerLayer(this).Remove(_adorner);
_adorner.Child = null;
_adorner = null;
content.Visibility = System.Windows.Visibility.Collapsed;
this.Content = content;
}
}
private void Show()
{
var holder = GetAdornerLayerHolderElement();
if (_adorner == null)
{
RemoveVisualChild(VisualTreeHelper.GetChild(this, 0) as FrameworkElement);
var content = FormElement;
if (double.IsNaN(content.Width))
{
//var wBinding = new Binding("ActualWidth");
//wBinding.Source = holder;
//BindingOperations.SetBinding(content, FrameworkElement.WidthProperty, wBinding);
//content.Width = holder.ActualWidth;
}
if (double.IsNaN(content.Height))
{
//var hBinding = new Binding("ActualHeight");
//hBinding.Source = holder;
//BindingOperations.SetBinding(content, FrameworkElement.HeightProperty, hBinding);
//content.Width = holder.ActualHeight;
}
try
{
_adorner = new ControlAdorner(this /*, holder*/)
{
Child = VisualTreeHelper.GetParent(content) as FrameworkElement
};
}
catch (Exception ex)
{
throw ex;
}
}
var adrLayer = AdornerLayer.GetAdornerLayer(this);
//LogicalTreeHelper
adrLayer.Remove(_adorner);
adrLayer.Add(_adorner);
}
/// <summary>
/// The remove adorner.
/// </summary>
private void RemoveAdorner()
{
if (this.adorner == null || this.adornerLayer == null)
{
return;
}
if (this.adornerDragDrop != null)
{
ControlAdornerDragDrop.Detach(this.adornerDragDrop);
this.adornerDragDrop = null;
}
this.adornerLayer.Remove(this.adorner);
this.adorner.Child = null;
this.adorner = null;
this.adornerLayer = null;
this.RegisterBeingMovedOut();
}
/// <summary>
/// The create adorner.
/// </summary>
private void CreateAdorner()
{
if (this.adorner != null || (Application.Current.MainWindow == null && this.userDefinedAdorner == null))
{
return;
}
var adornedElement = this.GetAdornerElement();
if (adornedElement == null)
{
return;
}
AdornerLayer layer = AdornerLayer.GetAdornerLayer(adornedElement);
if (layer == null)
{
return;
}
this.isPositionCalculated = false;
var ad = new ControlAdorner(adornedElement)
{
Child = this, Focusable = false
};
KeyboardNavigation.SetTabNavigation(ad, KeyboardNavigationMode.None);
layer.Add(ad);
this.adorner = ad;
this.adornerLayer = layer;
if (this.IsPinned && this.adornerDragDrop == null)
{
this.adornerDragDrop = ControlAdornerDragDrop.Attach(this.adorner);
}
this.RegisterBeingInFront();
}
private void Show()
{
if (_adorner == null)
{
try
{
_adorner = new ControlAdorner(this)
{
Child = content
};
}
catch (Exception ex)
{
throw ex;
}
//System.Diagnostics.Debug.WriteLine("Show() new _adorner");
}
AdornerLayer.GetAdornerLayer(this).Remove(_adorner);
AdornerLayer.GetAdornerLayer(this).Add(_adorner);
GetMouseCapture(content);
}
private void Pin_MouseLeave(object sender, MouseEventArgs e)
{
_adornerLayer.Remove(_adorner);
_adorner = null;
}
private static void OnOffsetYChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ControlAdorner instance = (ControlAdorner)d;
instance.OnOffsetYChanged(e);
}
