private void _empty_AboutToDrop(ProviderTokenTile sender, ProviderTokenTileDragEventArgs e)
{
int index = _flow.Controls.IndexOf(_empty);
_flow.Controls.Remove(_empty);
if (index >= 0)
_items.Insert(index, e.TokenTile.Token.Provider);
e.Handled = true;
_internalDrag = false;
}
private void _panel_MouseMove(object sender, MouseEventArgs e)
{
OnMouseMove(e);
Control ctrl = sender as Control;
if (!_isMouseDown || e.Button != MouseButtons.Left || !AllowDrag || _token == null || ctrl == null)
return;
int dX = Math.Abs(e.Location.X - _lastMouseDown.X);
int dY = Math.Abs(e.Location.Y - _lastMouseDown.Y);
Point dMax = GetDragThreshold();
if (dX < dMax.X && dY < dMax.Y)
return;
_isMouseDown = false;
var args = new ProviderTokenTileDragEventArgs()
{
TokenTile = this,
Cancel = false,
Handled = false,
Location = ctrl.PointToScreen(e.Location)
};
AboutToDrag(this, args);
if (!args.Cancel)
{
Debug.WriteLine(this.Name + " start drag");
this.DoDragDrop(args, DragDropEffects.Copy);
}
}
private void tile_AboutToDrag(ProviderTokenTile sender, ProviderTokenTileDragEventArgs e)
{
if (!AllowItemDrag)
return;
sender.QueryContinueDrag += new QueryContinueDragEventHandler(tile_QueryContinueDrag);
_internalDrag = true;
if (AllowDragArrange)
{
int index = _flow.Controls.IndexOf(sender);
_items.RemoveAt(index);
_flow.Controls.Add(_empty);
_flow.Controls.SetChildIndex(_empty, index);
_flow.Controls.Remove(sender);
}
}