/// <summary>
/// Occurs when an object is dragged over the item's bounds.
/// </summary>
/// <param name="e"></param>
internal bool OnDragOver(Handlers.ItemDragEventArgs e)
{
bool result = false;
if (dragDropHandler != null)
{
result |= dragDropHandler.OnDragOver(this, e);
}
if (DragOver != null)
{
DragOver(this, e);
}
return(result);
}
/// <summary>
/// Gets the loc state from the given drag/drop event args.
/// </summary>
private static ILocState GetLoc(ItemDragEventArgs e)
{
var container = e.Data.GetData(typeof(EntityStateContainer)) as EntityStateContainer;
if (container != null)
{
var locState = container.State as ILocState;
if ((locState != null) && (locState.CurrentBlock.Actual == null))
{
return(null);
}
return(locState);
}
return(null);
}
/// <summary>
/// Perform drop.
/// </summary>
public override bool OnDragDrop(VCItem sender, ItemDragEventArgs e)
{
var loc = GetLoc(e);
if (loc != null)
{
var blockItem = sender as BlockItem;
if (blockItem != null)
{
var blockState = blockItem.State;
// Are there possible sequences?
if (TargetBlockRouteSelector.FindRouteSequences(loc.CurrentBlock.Actual, loc.CurrentBlockEnterSide.Actual, blockState).Any())
{
loc.RouteSelector = new TargetBlockRouteSelector(blockState);
return(true);
}
}
}
return(base.OnDragDrop(sender, e));
}
/// <summary>
/// Default ctor
/// </summary>
/// <param name="button"></param>
/// <param name="clicks"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="delta"></param>
public ItemDragEventArgs(ItemDragEventArgs source, int x, int y)
:
base(source.Data, source.KeyState, x, y, source.AllowedEffect, source.Effect)
{
this.controlEventArgs = source.controlEventArgs;
}
