private void UpdateDragAdorner(Point currentPosition)
{
if (_myDragAdorner != null)
{
_myDragAdorner.UpdatePosition(currentPosition.X, currentPosition.Y);
}
}
void UpdateDragAdorner(Point currentPosition)
{
if (_itemAdorner != null)
{
Debug.WriteLine("UpdateDragAdorner " + currentPosition.X + "," + currentPosition.Y);
_itemAdorner.UpdatePosition(currentPosition.X, currentPosition.Y);
}
}
private void TaskItem_GiveFeedback(object sender, GiveFeedbackEventArgs e)
{
if (_adorner != null)
{
Point pos = PointFromScreen(GetMousePosition());
_adorner.UpdatePosition(pos);
}
else
{
e.Handled = false;
}
}
private void InitializeDragAdorner(Point startPosition)
{
if (adorner != null)
{
return;
}
if (draggedItem == null)
{
return;
}
var contentContainer = draggedItem.FindChild <Grid>(ItemContentContainer);
adorner = new DragAdorner(AssociatedObject, contentContainer, true, 1);
var adornerLayer = AdornerLayer.GetAdornerLayer(AssociatedObject);
adornerLayer.Add(adorner);
adorner.UpdatePosition(startPosition);
}
void InitializeDragAdorner(object dragData, Point startPosition)
{
if (this.DataTemplate != null)
{
if (_itemAdorner == null)
{
//FrameworkElement el = this.AssociatedObject;
//while (!(el is UserControl))
// el = (FrameworkElement)VisualTreeHelper.GetParent(el);
var adornerLayer = AdornerLayer.GetAdornerLayer(_el);
_itemAdorner = new DragAdorner(dragData, DataTemplate, _el, adornerLayer);
_itemAdorner.UpdatePosition(startPosition.X, startPosition.Y);
// set adorner z-order
var setZOrderMethodInfo = adornerLayer.GetType().GetMethod("SetAdornerZOrder", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
setZOrderMethodInfo.Invoke(adornerLayer, new object[] { _itemAdorner, 1 });
}
}
}
private void InitializeDragAdorner(UIElement itemsControl, object dragData, Point startPosition)
{
if (DataTemplate == null)
{
return;
}
if (_myDragAdorner != null)
{
return;
}
var adornerLayer = AdornerLayer.GetAdornerLayer(itemsControl);
if (adornerLayer == null)
{
return;
}
_myDragAdorner = new DragAdorner(dragData, DataTemplate, itemsControl, adornerLayer);
_myDragAdorner.UpdatePosition(startPosition.X, startPosition.Y);
}
private void UpdateDragAdorner(Point currentPosition)
{
adorner?.UpdatePosition(currentPosition);
}
private static void StartDrag(DependencyObject source)
{
var dragScope = Application.Current.MainWindow as FrameworkElement;
//var dragScope = Application.Current.MainWindow.Content as FrameworkElement;
dragScope.AllowDrop = true;
SetIsDragging(source, true);
DataObject dataObject = new DataObject();
var data = GetDragData(source);
dataObject.SetData(data);
var adorner = new DragAdorner(source as UIElement, data, true, 1);
var layer = AdornerLayer.GetAdornerLayer(((Window)dragScope).Content as FrameworkElement);
layer.Add(adorner);
var startPoint = (Point)source.GetValue(StartPointProperty);
adorner.UpdatePosition(startPoint);
//var adjustPoint = GetAdjustPoint(source);
//adorner.UpdatePosition(adjustPoint);
dragScope.DragOver += (sender, e) =>
{
if (adorner != null)
{
adorner.UpdatePosition(e.GetPosition(dragScope));
}
};
DragDrop.DoDragDrop(source, dataObject, DragDropEffects.Move);
layer.Remove(adorner);
adorner = null;
SetIsDragging(source, false);
}
