public BlockAttributes EffectiveAttribute()
{
if (elements.Count == 0)
{
return(BlockAttributes.Stack);
}
IInvokationBlockView first = (IInvokationBlockView)elements[0];
IInvokationBlockView last = (IInvokationBlockView)elements.Last();
bool connectAbove = first.Attribute != BlockAttributes.Hat;
bool connectBelow = last.Attribute != BlockAttributes.Cap;
if (connectAbove && connectBelow)
{
return(BlockAttributes.Stack);
}
else if (connectBelow)
{
return(BlockAttributes.Hat);
}
else if (connectAbove)
{
return(BlockAttributes.Cap);
}
else
{
throw new InvalidOperationException("What's a reporter block doing in a BlockStack?");
}
}
void InvokationBlock_ArgChanged(object sender, int arg, IBlock _old, IBlock _new)
{
IBlockView v = ViewFromBlock(_new);
IInvokationBlockView parent = (IInvokationBlockView)ViewFromBlock((IBlock)sender);
parent.SetArgView(arg, v);
modified();
}
public static IEnumerable <DropRegion> EdgeDropRegions(
this IInvokationBlockView view,
Point origin, Size size)
{
BlockAttributes Attribute = view.Attribute;
int Width = size.Width;
int Height = size.Height;
if (Attribute == BlockAttributes.Stack)
{
yield return(new DropRegion(DropType.Above, new Rectangle(origin.Offseted(0, -2), new Size(Width, 5)), view));
yield return(new DropRegion(DropType.Below, new Rectangle(origin.Offseted(0, Height - 2), new Size(Width, 5)), view));
}
else if (Attribute == BlockAttributes.Hat)
{
yield return(new DropRegion(DropType.Below, new Rectangle(origin.Offseted(0, Height - 2), new Size(Width, 5)), view));
}
else if (Attribute == BlockAttributes.Cap)
{
yield return(new DropRegion(DropType.Above, new Rectangle(origin.Offseted(0, -2), new Size(Width, 5)), view));
}
}
