private void Part_Dropped(TabControlParts_DragItem e)
{
RemoveFromTab(e.Part3D);
this.PreviousRemoved.Add(Tuple.Create(e.Part3D.Token, DateTime.UtcNow));
}
private void TabControl_PreviewMouseMove(object sender, MouseEventArgs e)
{
bool shouldClearDragStart = true;
try
{
if (_dragStart == null || e.LeftButton != MouseButtonState.Pressed)
{
return;
}
TabControlPartsVM context = this.DataContext as TabControlPartsVM;
if (context == null)
{
return;
}
// Get the current mouse position
Point mousePos = e.GetPosition(null);
Vector diff = _dragStart.Value - mousePos;
if (Math.Abs(diff.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(diff.Y) > SystemParameters.MinimumVerticalDragDistance)
{
// Get the item they are dragging
TabControlParts_DragItem dragItem = context.GetDragItem((DependencyObject)e.OriginalSource);
if (dragItem == null)
{
return;
}
// This isn't null on the reentry. It's like DragDrop.DoDragDrop is double calling
//if(_dragStart == null)
//{
// return;
//}
shouldClearDragStart = false;
// Initialize the drag & drop operation
DataObject dragData = new DataObject(DRAGDROP_FORMAT, dragItem);
if (DragDrop.DoDragDrop(this, dragData, DragDropEffects.Move) == DragDropEffects.None)
{
// If they drag around, but not in a place where Drop gets fired, then execution reenters here.
if (this.DragDropCancelled != null)
{
this.DragDropCancelled(this, dragItem);
}
}
else
{
shouldClearDragStart = true;
}
}
else
{
shouldClearDragStart = false;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), TITLE, MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
if (shouldClearDragStart)
{
_dragStart = null;
}
}
}
private void tabCtrl_DragDropCancelled(object sender, TabControlParts_DragItem e)
{
try
{
// Since the tabcontrol started the dragdrop, it knows when the drop failed
// Get rid of the dragging part
if (_draggingDropObject != null && _draggingDropObject.HasAddedToViewport) // this will be null if they started dragging, but not over the 3D viewport
{
_viewport.Children.Remove(_draggingDropObject.Model);
}
_draggingDropObject = null;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), _msgboxCaption, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void Part_Dropped(TabControlParts_DragItem e)
{
RemoveFromTab(e.Part3D);
this.PreviousRemoved.Add(Tuple.Create(e.Part3D.Token, DateTime.UtcNow));
}