var didDrag;
var centerX,centerY,radius;
var textToDraw;
var letters_array = new Array();
var corner0,corner1;


function configureTool()
{
	theTool = fl.tools.activeTool;
	theTool.setToolName("circletext");
	theTool.setIcon("circletext.png");
	theTool.setMenuString("circletext");
	theTool.setToolTip("circletext");
	theTool.setOptionsFile( "circletext.xml" );
	
	textToDraw = theTool.textToDraw;
	angle = theTool.angle;
	
	initLetters();
}
function initLetters()
{
	for(var i=0;i<textToDraw.length;i++)
	{
		letters_array[i]=textToDraw.substr(i,1);
	}
	
}
function notifySettingsChanged()
{
	theTool = fl.tools.activeTool;

	textToDraw = theTool.textToDraw;
	angle = theTool.angle;

	initLetters();

}

function activate()
{
	theTool = fl.tools.activeTool;
}
function deactivate()
{
}
function mouseDown()
{
	centerX = fl.tools.penLoc.x;
	centerY = fl.tools.penLoc.y;
center = enterTheMatrix({x:centerX,y:centerY})
	fl.drawingLayer.beginDraw();
	didDrag=false;
}
function mouseMove()
{
	if(fl.tools.mouseIsDown)
	{

		var dx=fl.tools.penLoc.x-fl.tools.penDownLoc.x;
		var dy=fl.tools.penLoc.y-fl.tools.penDownLoc.y;
		startAngle =Math.atan2(dy, dx) * 180/Math.PI;
		radius = Math.sqrt(dx*dx+dy*dy);
		var oLeft = centerX-radius;
		var oTop = centerY-radius;
		var oRight = centerX+radius;
		var oBottom = centerY+radius;
		corner0 = enterTheMatrix({x:oLeft,y:oTop});
		corner1 = enterTheMatrix({x:oRight,y:oBottom});
		if(Math.abs(dx>5) || Math.abs(dy)>5)
		{
			didDrag=true;
		}

		fl.drawingLayer.beginFrame();
		fl.drawingLayer.moveTo(center.x, center.y);
		fl.drawingLayer.lineTo(center.x+dx, center.y+dy);
		fl.drawingLayer.endFrame();
	}
}
function mouseUp()
{
	fl.drawingLayer.endDraw();
	if(didDrag)
	{

	var rad = Math.PI/180;
	for (var i=0;i<letters_array.length;i++){
		var letterAngle = startAngle+angle*i;
		var textX = centerX+radius*Math.cos(letterAngle*rad);
		var textY = centerY+radius*Math.sin(letterAngle*rad);
		var coords = enterTheMatrix({x:textX,y:textY});
		fl.getDocumentDOM().addNewText({left:coords.x, top:coords.y, right:coords.x+20, bottom:coords.y+20});
		fl.getDocumentDOM().setElementProperty('autoExpand', true);
		fl.getDocumentDOM().setTextString(letters_array[i]);
		fl.getDocumentDOM().rotateSelection(letterAngle+90);
		fl.getDocumentDOM().selectNone();
	}

	}
}


function enterTheMatrix( parCoords )
{
	var mat = fl.getDocumentDOM().viewMatrix;
	var xtmp = parCoords.x*mat.a + parCoords.y*mat.c + mat.tx;
	var ytmp = parCoords.x*mat.b + parCoords.y*mat.d + mat.ty;
	return {x:xtmp,y:ytmp};
}