private void SelectRangeFromAnchor(SelectionModel manager, IndexPath index, bool select)
{
Log.Comment("SelectRangeFromAnchor " + index + " select: " + select.ToString());
if (select)
{
manager.SelectRangeFromAnchorTo(index);
}
else
{
manager.DeselectRangeFromAnchorTo(index);
}
}
protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
if (!e.Handled)
{
var indexPath = GetIndexPath();
Debug.WriteLine("OnPointerPressed:" + indexPath.ToString());
if (SelectionModel != null)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Shift) && !SelectionModel.SingleSelect)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
SelectionModel.DeselectRangeFromAnchorTo(GetIndexPath());
}
else
{
SelectionModel.SelectRangeFromAnchorTo(GetIndexPath());
}
}
else if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
var path = GetIndexPath();
if (SelectionModel.IsSelectedAt(path).Value)
{
SelectionModel.SelectAt(path);
}
else
{
SelectionModel.SelectAt(path);
}
}
else
{
SelectionModel.SelectAt(GetIndexPath());
this.Focus(FocusState.Keyboard);
}
}
e.Handled = true;
base.OnPointerPressed(e);
}
}