private void SetPopupDragAdorner( ColumnManagerCell columnManagerCell )
{
if( columnManagerCell == null )
return;
if( m_popupDraggedElementAdorner != null )
{
this.AdornerLayerInsideDragContainer.Remove( m_popupDraggedElementAdorner );
m_popupDraggedElementAdorner = null;
}
// Get the Rect for the DataGridControl
DataGridControl dataGridControl = this.DraggedDataGridContext.DataGridControl;
Rect dataGridControlRect = new Rect( 0d, 0d, dataGridControl.ActualWidth, dataGridControl.ActualHeight );
Point elementToDataGridControl = columnManagerCell.TranslatePoint( ColumnReorderingDragSourceManager.EmptyPoint, dataGridControl );
// Get the Rect for the element that request a ghost
Rect elementRect = new Rect( elementToDataGridControl, columnManagerCell.RenderSize );
// This is a special case with the current Element that is always be layouted, but can be out of view
if( !elementRect.IntersectsWith( dataGridControlRect ) )
return;
AnimatedDraggedElementAdorner adorner = new AnimatedDraggedElementAdorner( columnManagerCell, this.AdornerLayerInsideDragContainer, true );
adorner.AdornedElementImage.Opacity = 0d;
this.ApplyContainerClip( adorner );
this.AdornerLayerInsideDragContainer.Add( adorner );
m_popupDraggedElementAdorner = adorner;
}
public void AddDraggedColumnGhost( UIElement element )
{
if( ( element == null ) || m_elementToDraggedElementAdorner.ContainsKey( element ) )
return;
// Get the Rect for the DataGridControl
DataGridControl dataGridControl = this.DraggedDataGridContext.DataGridControl;
Rect dataGridControlRect = new Rect( 0, 0, dataGridControl.ActualWidth, dataGridControl.ActualHeight );
Point elementToDataGridControl = element.TranslatePoint( ColumnReorderingDragSourceManager.EmptyPoint, dataGridControl );
// Get the Rect for the element that request a ghost
Rect elementRect = new Rect( elementToDataGridControl, element.RenderSize );
// This is a special case with the current Element that is always layouted, but can be out of view
if( !elementRect.IntersectsWith( dataGridControlRect ) )
return;
AnimatedDraggedElementAdorner adorner = new AnimatedDraggedElementAdorner( element, this.AdornerLayerInsideDragContainer, true );
this.ApplyContainerClip( adorner );
this.AdornerLayerInsideDragContainer.Add( adorner );
m_elementToDraggedElementAdorner.Add( element, adorner );
}