// create a short variable name to represent the mouse position
var mouse = smartShape.currentMousePos;

// create a short variable name to represent the control points array
var cps = smartShape.elem.controlPoints;

// create a new generic object to contain event handler functions
operation = new Object();

// event handlers:
// define both a BeginDragInsert event handler and an InsertSmartShapeAt event
// handler that will create the shape for either of the events depending on how
// the user adds the shape to the document (click and release or drag as tool)
operation.BeginDragInsert = operation.InsertSmartShapeAt = function(){
	
	// create new path as first element in elements array
	smartShape.elem.elements[0] = new Path();
	
	// create new contour as first contour in contours array
	smartShape.elem.elements[0].contours[0] = new Contour();
	
	// set the contour to be a closed contour
	smartShape.elem.elements[0].contours[0].isClosed = true;
	
	// assign a short variable to represent the nodes array
	var nods = smartShape.elem.elements[0].contours[0].nodes;
	
	// create 4 nodes in the contour by altering the nodes array (nods) length
	nods.length = 4;
	
	// set the position of the 4 nodes in the first contour in a box shape
	// each point is based around a zero location and then has added to it
	// the position of the mouse using AddPoints. This makes the position of
	// the points around the position of the mouse.
	SetNodePosition(nods[0], AddPoints(mouse, {x:-25, y:-25}));
	SetNodePosition(nods[1], AddPoints(mouse, {x:25, y:-25}));
	SetNodePosition(nods[2], AddPoints(mouse, {x:25, y:25}));
	SetNodePosition(nods[3], AddPoints(mouse, {x:-25, y:25}));
	
	// create new contour as second contour in contours array
	smartShape.elem.elements[0].contours[1] = new Contour();
	
	// set the contour to be a closed contour
	smartShape.elem.elements[0].contours[1].isClosed = true;
	
	// assign a short variable to represent the nodes array
	nods = smartShape.elem.elements[0].contours[1].nodes;
	
	// create 4 nodes in the contour by altering the nodes array (nods) length
	nods.length = 4;
	
	// set the position of the 4 nodes in the second contour in a box shape
	// that lies within the box shape of the first contour also positioned
	// around the location of the mouse
	SetNodePosition(nods[0], AddPoints(mouse, {x:-15, y:-15}));
	SetNodePosition(nods[1], AddPoints(mouse, {x:15, y:-15}));
	SetNodePosition(nods[2], AddPoints(mouse, {x:15, y:15}));
	SetNodePosition(nods[3], AddPoints(mouse, {x:-15, y:15}));
	
	// create a new control point in the first position of the control points array
	cps[0] = new ControlPoint();
	
	// set the first control point to the position of the mouse with the name
	// "Center" and the toolTip "Click Me"
	SetControlPoint(cps[0], mouse, "Center", "Click Me");
	
	// for BeginDragInsert only:
	
	// define a variable to hold a default RegisterMoveParms object
	var parms = smartShape.GetDefaultMoveParms();
	
	// assign a short variable to represent the first (outer) contour's nodes array
	nods = smartShape.elem.elements[0].contours[0].nodes;
	
	// set delta X and Y ratios so that the first node (top left corner)
	// doesn't move with the mouse at all applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 0;
	parms.deltaYtoY = 0;
	nods[0].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the second node (top right corner)
	// only moves with the mouse x applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 1;
	parms.deltaYtoY = 0;
	nods[1].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the third node (bottom right corner)
	// so it moves with the mouse applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 1;
	parms.deltaYtoY = 1;
	nods[2].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the fourth node (bottom left corner)
	// only moves with the mouse y applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 0;
	parms.deltaYtoY = 1;
	nods[3].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the central control point 
	// moves half the distance of the mouse applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 1/2;
	parms.deltaYtoY = 1/2;
	cps[0].RegisterInsertBBoxMove(parms);

	// assign a short variable to represent the second (inner) contour's nodes array
	nods = smartShape.elem.elements[0].contours[1].nodes;
	
	// set delta X and Y ratios so that the first node (top left corner)
	// doesn't move with the mouse at all except based on 1/5 the distance
	// that of the shortest side dragged (bringing it inwards by that amount)
	// applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 0;
	parms.deltaYtoY = 0;
	parms.deltaShortestSideToX = 1/5;
	parms.deltaShortestSideToY = 1/5;
	nods[0].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the second node (top right corner)
	// only moves with the mouse x normally but removing an additional 1/5
	// of the shortest side from the x and setting y to move only 1/5 of
	// the shortest side applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 1;
	parms.deltaYtoY = 0;
	parms.deltaShortestSideToX = -1/5;
	parms.deltaShortestSideToY = 1/5;
	nods[1].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the third node (bottom right corner)
	// so it moves with the mouse except subtracting from it 1/5 the distance
	// that of the shortest side dragged applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 1;
	parms.deltaYtoY = 1;
	parms.deltaShortestSideToX = -1/5;
	parms.deltaShortestSideToY = -1/5;
	nods[2].RegisterInsertBBoxMove(parms);
	
	// set delta X and Y ratios so that the fourth node (bottom left corner)
	// only moves with the mouse y normally but removing an additional 1/5
	// of the shortest side from the y and setting x to move only 1/5 of
	// the shortest side applying it with a RegisterInsertBBoxMove
	parms.deltaXtoX = 0;
	parms.deltaYtoY = 1;
	parms.deltaShortestSideToX = 1/5;
	parms.deltaShortestSideToY = -1/5;
	nods[3].RegisterInsertBBoxMove(parms);
}
// end event handlers

// custom functions:
/**
 * SetBezierNodePosition sets the position of the passed node to the
 * position of the point pt parameter. All node control points are
 * set to this point as well
 * Requires: SetBezierNodePosition
*/
SetNodePosition = function(node, pt){
	SetBezierNodePosition(node, pt,pt,pt); // set point position for all nodes to pt
}

/**
 * SetBezierNodePosition sets the position of the passed node to the
 * position of the points ptp (node predecessor), pt (main point), and
 * pts (node successor)
*/
SetBezierNodePosition = function(node, ptp, pt, pts){
	node.predX	= ptp.x;	node.predY	= ptp.y; // Predecessor point
	node.x		= pt.x;		node.y		= pt.y; // Main points
	node.succX	= pts.x;	node.succY	= pts.y; // Successor points
}

/**
 * SetControlPoint positions the passed control point cp to the location
 * specified by pt and assigns to it name and toolTip 
*/
SetControlPoint = function(cp, pt, name, toolTip){
	cp.x = pt.x; // set x position from x of pt
	cp.y = pt.y; // set y position from y of pt
	cp.name = name; // set control point name to name passed
	cp.toolTip = toolTip; // set control point toolTip to toolTip passed
}

/**
 * AddPoints adds two points pt1 and pt2 and returns the resulting point
*/
AddPoints = function(pt1, pt2){
	return {x:pt1.x + pt2.x, y:pt1.y + pt2.y}; // add x and y properties in returned object
}
// end custom functions

// invoke event handler:
// if the event specified by smartShape.operation exists
// in the operation object, call that event as a function
if (operation[smartShape.operation]) operation[smartShape.operation]();