#strict 2

local target;
local rect;
local mark;

func Initialize()
{
	SetVisibility(VIS_None);
}

func Set(object targetObj, array targetRect, string name)
{
	target = targetObj;
	name = name || target->GetName();
	var category = target->GetCategory();
	if(category & C4D_StaticBack)
	{
		category &= ~C4D_StaticBack;
		category |= C4D_Structure;
	}
	SetName(name);
	SetCategory(category | C4D_MouseIgnore);
	SetAction("Attach", target);

	rect = targetRect;
	UpdateTransferZone();

	SetGraphics(0, this, GetID(target), GFX_Overlay, GFXOV_MODE_Picture);

	return this;
}

func AttachTargetLost()
{
	RemoveObject();
}

func UpdateTransferZone()
{
	if(rect)
	{
		SetVertex(0, VTX_X, - rect[0] + GetVertex(0, VTX_X, target), this, VTX_SetPermanentUpd);
		SetVertex(0, VTX_Y, - rect[1] + GetVertex(0, VTX_Y, target), this, VTX_SetPermanentUpd);
		SetShape(0, 0, rect[2], rect[3]);
	}
}


func ControlLeft() { return target && target->~ControlLeft(...); }
func ControlLeftDouble() { return target && target->~ControlLeftDouble(...); }
func ControlLeftSingle() { return target && target->~ControlLeftSingle(...); }
func ControlLeftReleased() { return target && target->~ControlLeftReleased(...); }
func ControlRight() { return target && target->~ControlRight(...); }
func ControlRightDouble() { return target && target->~ControlRightDouble(...); }
func ControlRightSingle() { return target && target->~ControlRightSingle(...); }
func ControlRightReleased() { return target && target->~ControlRightReleased(...); }
func ControlUp() { return target && target->~ControlUp(...); }
func ControlUpDouble() { return target && target->~ControlUpDouble(...); }
func ControlUpSingle() { return target && target->~ControlUpSingle(...); }
func ControlUpReleased() { return target && target->~ControlUpReleased(...); }
func ControlDown() { return target && target->~ControlDown(...); }
func ControlDownDouble() { return target && target->~ControlDownDouble(...); }
func ControlDownSingle() { return target && target->~ControlDownSingle(...); }
func ControlDownReleased() { return target && target->~ControlDownReleased(...); }
func ControlThrow() { return target && target->~ControlThrow(...); }
func ControlThrowDouble() { return target && target->~ControlThrowDouble(...); }
func ControlThrowSingle() { return target && target->~ControlThrowSingle(...); }
func ControlThrowReleased() { return target && target->~ControlThrowReleased(...); }
func ControlDig() { return target && target->~ControlDig(...); }
func ControlDigDouble() { return target && target->~ControlDigDouble(...); }
func ControlDigSingle() { return target && target->~ControlDigSingle(...); }
func ControlDigReleased() { return target && target->~ControlDigReleased(...); }
func Grabbed() { return target && target->~Grabbed(...); }

global func AddGrabHelper()
{
	return CreateObject(GH7I)->Set(this, ...);
}

func ShowMark(bool hide)
{
	if(!hide && !mark)
	{
		mark = CreateSelectMark()->MarkObject(this);
	}

	if(hide && mark)
	{
		RemoveObject(mark);
	}
}