//更新当前选择的图元的集合
private void UpdateSelection()
{
designerCanvas.SelectionService.ClearSelection();
if (startPoint != null && endPoint != null)
{
Rect rubberBand = new Rect(startPoint.Value, endPoint.Value);
foreach (FrameworkElement item in designerCanvas.Children)
{
DesignerContainer di = item as DesignerContainer;
if (di == null || !di.Editable)
{
continue;
}
//Rect itemRect = VisualTreeHelper.GetDescendantBounds(Item);
//Rect itemBounds = Item.TransformToAncestor(designerCanvas).TransformBounds(itemRect);
FrameworkElement content = di.Item;
if (content == null)
{
continue;
}
Rect itemRect = VisualTreeHelper.GetDescendantBounds(content);
Rect itemBounds = content.TransformToAncestor(designerCanvas).TransformBounds(itemRect);
if (!rubberBand.Contains(itemBounds))
{
continue;
}
//if (Item is Connection)
// designerCanvas.SelectionService.AddToSelection(Item as ISelectable);
//else
//{
//DesignerItem di = Item as DesignerItem;
int idx = Panel.GetZIndex(di);
if (idx == int.MinValue)
{
continue;
}
if (di.ParentID == Guid.Empty)
{
designerCanvas.SelectionService.AddToSelection(di);
}
//}
}
}
if (designerCanvas.SelectionService.SelectedDesignerContainer.Count > 0)
{
PropertyView pv = designerCanvas.FindName("pv") as PropertyView;
if (pv != null)
{
pv.ShowProView(false);
}
}
}
