private void SubscribeToDragNDropEvents()
{
DragDropHandler.DragStarted += (s, e) => { Log("Drag started !"); };
DragDropHandler.DragUpdated += (s, e) =>
{
Log($"Drag updated ! newX : {e.Position.X}, newY : {e.Position.Y}");
};
DragDropHandler.DragEnded += (s, e) =>
{
Log("Drag ended !");
IList <BlockViews.ContainerBlockView> coveredBlockViews = GetContainerBVsCoveredByDragged(e);
if (coveredBlockViews.Count != 0 && e.Block is BlockViews.SimpleBlockView)
{
BlockViews.SimpleBlockView sbv = (BlockViews.SimpleBlockView)e.Block;
BlockViews.ContainerBlockView cbv = coveredBlockViews[0];
sbv.RemoveFromParentContainerIfSet();
cbv.AddChild(sbv);
}
};
}
public void AddChild(SimpleBlockView sbv)
{
XamlContainer.Children.Add(sbv);
/* VerticalOptions = "Start"
* HorizontalOptions = "FillAndExpand"*/
sbv.ParentContainer = this;
}
private Point GetScreenCoordinates(BlockViews.BlockView bv)
{
if (bv is BlockViews.SimpleBlockView)
{
BlockViews.SimpleBlockView sbv = (BlockViews.SimpleBlockView)bv;
Point parentPoint = sbv.GetParentPoint();
if (parentPoint.X != -1)
{
MainPage.Log("ParentPointX:" + parentPoint.X + ", PArentPoint.Y : " + parentPoint.Y);
return(parentPoint);
}
}
//else, it's a container
return(new Point(bv.X, bv.Y));
}
public void RemoveChild(SimpleBlockView sbv)
{
XamlContainer.Children.Remove(sbv);
sbv.ParentContainer = null;
// sbv.Parent = al;
}