// aimsClick.js
/*
*  JavaScript template file for ArcIMS HTML Viewer
*		dependent on aimsXML.js, ArcIMSparam.js, aimsCommon.js, aimsMap.js,
*		aimsLayers.js, aimsDHTML.js
*		aimsNavigation.js
*/

aimsClickPresent=true;

var onOVArea = false;

// Global vars to save mouse position
var mouseX=0;
var mouseY=0;
var x1=0;
var y1=0;
var x2=0;
var y2=0;
var zleft=0;
var zright=0;
var ztop=0;
var zbottom=0;

var totalMeasure=0;
var currentMeasure=0;
var lastTotMeasure=0;

// variables for interactive clicks
var clickCount = 0;
var	clickPointX = new Array();
var clickPointY = new Array();
var clickMeasure = new Array();
	// type - 1=Measure; 2=SelectLine ; 3=SelectPolygon
var clickType = 1;



var panning=false;
var zooming=false;
var selectBox=false;
var blankImage = "images/map.gif";

var leftButton =1;
var rightButton = 2;
if (isNav) {
	leftButton = 1;
	rightButton = 3;
}


/*  *****************************************************
*	Point click functions
* 	used by Measure and Select by Line/Polygon
*	*****************************************************
*/

// put a point at click and add to clickCount
function clickAddPoint() {
	var theX = mouseX;
	var theY = mouseY;
	getMapXY(theX,theY);
	clickPointX[clickCount]=mapX;
	clickPointY[clickCount]=mapY;
	clickCount += 1;
	selectCount=0;
	totalMeasure = totalMeasure + currentMeasure;
		//var u = Math.pow(10,numDecimals);
		//if (totalMeasure!=0) totalMeasure = parseInt(totalMeasure*u+0.5)/u;

	clickMeasure[clickCount]=totalMeasure;
	var theString = writeXML();
	var theNum = 99;
	sendToServer(imsURL,theString,theNum);

}

// zero out all clicks in clickCount
function resetClick() {
	var c1 = clickCount;
	clickCount=0;
	clickPointX.length=1;
	clickPointY.length=1;
	currentMeasure=0;
	totalMeasure=0;
	lastTotMeasure=0;
	clickMeasure.length=1;
	selectCount=0;
	
	var theString = writeXML();
	var theNum = 99;
		//showRetrieveMap();
	sendToServer(imsURL,theString,theNum);
		
	if (toolMode==20) updateMeasureBox();

}	

// remove last click from clickCount
function deleteClick() {
	var c1 = clickCount;
	clickCount=clickCount-1;
	selectCount=0;
	if (clickCount<0) clickCount=0;
	if (clickCount>0) {
		totalMeasure = clickMeasure[clickCount]
		clickPointX.length=clickCount;
		clickPointY.length=clickCount;
		clickMeasure.length=clickCount;
		
	} else {
		totalMeasure=0;
		clickMeasure[0]=0;
	}
	currentMeasure=0;
	if (c1>0) {
		var theString = writeXML();
		var theNum = 99;
		sendToServer(imsURL,theString,theNum);
	}
	
}


//keep track of currently selected tool, and display it to user
// set the imsMap cursor tool
function clickFunction (toolName) {
	if (hasLayer("measureBox"))
		hideLayer("measureBox");
	switch(toolName) {
	// Zooming functions
	case "zoomin":
		// zoom in mode
		toolMode = 1;
		panning=false;
		selectBox=false;
		if (isIE)	{
			document.all.theTop.style.cursor = "crosshair";
			theCursor = document.all.theTop.style.cursor;
		}
		modeBlurb = modeList[0];
		//if (useTextFrame) parent.TextFrame.document.location= appDir + "text.htm";
		break
	case "zoomout":
		// zoom out mode
		toolMode = 2;
		panning=false;
		selectBox=false;
		if (isIE)	{
			document.all.theTop.style.cursor = "crosshair";
			theCursor = document.all.theTop.style.cursor;
		}
		modeBlurb = modeList[1];
		//if (useTextFrame) parent.TextFrame.document.location= appDir + "text.htm";
		break
	case "zoomlast":
		panning=false;
		zooming=false;
		selectBox=false;
		break
	case "zoomactive":
		var q = LayerExtent[ActiveLayerIndex].split("|");
		panning=false;
		zooming=false;
		selectBox=false;
		
		var l = parseFloat(setDecimalString(q[0]));
		var b = parseFloat(setDecimalString(q[1]));
		var r = parseFloat(setDecimalString(q[2]));
		var t = parseFloat(setDecimalString(q[3]));
		var w = r-l;
		var h = t-b;
		// add a bit of a margin around the layer
		var wm = w * (5/100);
		var hm = h * (5/100);
		l = l - wm;
		r = r + wm;
		b = b - hm;
		t = t + hm;
		zoomToEnvelope(l,b,r,t);
		break
	case "fullextent":
		fullExtent();
		break
		
	// Pan functions
	case "pan":
		// pan mode
		toolMode = 3;
		zooming=false;
		selectBox=false;
		if (isIE)	{
			document.all.theTop.style.cursor = "move";
			theCursor = document.all.theTop.style.cursor;
		}
		modeBlurb = modeList[2];
		//if (useTextFrame) parent.TextFrame.document.location= appDir + "text.htm";
		break

	// Graphic Selection functions
	case "shape":
		panning=false;
		zooming=false;
		selectBox=false;
		toolMode = 21;
		if (isIE)	{
			document.all.theTop.style.cursor = "crosshair";
			theCursor = document.all.theTop.style.cursor;
		}

		modeBlurb = modeList[13];
	

		hideLayer("measureBox");
		break
		
	case "options":
		writeOptionForm();
		break
		
	case "layerlist":
		// put LayerList in separate window
		writeLayerListForm();
		break
		
	default:
		alert(msgList[51]);
	}
	modeName=modeBlurb;
}

// check for mouseup
function chkMouseUp(e) { 
	if ((toolMode == 1) && (zooming)) {
			stopZoomBox(e);
		
	}
	if ((toolMode == 2) && (zooming)) {
			stopZoomOutBox(e);
	}
	if ((toolMode == 3) && (panning)) {
			stopPan(e);

	}
	return false;
	
}

// perform appropriate action with mapTool
function mapTool (e) {
	var theButton= 0;
	// get the button pushed... if right, ignore... let browser do the popup... it will anyway
	if (isNav) {
		theButton = e.which;
	} else {
		theButton =window.event.button;
	}	
	if (theButton==leftButton) {
		getImageXY(e);
		if ((mouseX>=0) && (mouseX<iWidth) && (mouseY>=0) && (mouseY<iHeight)) {
			//if ((!isNav) || (!is5up)) {
			
			if ((hasOVMap) && (ovIsVisible) && (mouseX>iWidth-9/10*i2Width+ovBoxSize) && (mouseY<i2Height) && (ovMapIsLayer))
			{
                          ovMapClick(mouseX-iWidth+9/10*i2Width,mouseY);
			}
			else {
				switch(toolMode) {
				case 1:
						startZoomBox(e);
						return false;
						break
					
				case 2:
						startZoomOutBox(e);
						return false;
						break
				case 3:
						startPan(e);
						return false;
						break

				case 10:
						break
				case 20:
					// measure
					clickType=1;
					clickAddPoint();
					break
				case 21:
					// shape
					clickType=4;
					clickAddPoint();
					break
				default:
				}
			}
		}
	}
}

// update measureBox layer
function updateMeasureBox() {
	if (isNav4) {
		var theForm = document.layers["measureBox"].document.forms[0];
	} else {
		//var theForm = document.measureBox.forms[0];
		var theForm = document.forms[0];
	}
	var j = 1;
	for (var i=0;i<sUnitList.length;i++) {
		if (ScaleBarUnits==sUnitList[i]) j=i;
	}
		var u = Math.pow(10,numDecimals);
		var tMeas = 0;
		if (totalMeasure!=0) tMeas = parseInt(totalMeasure*u+0.5)/u;
	theForm.theMeasTotal.value = tMeas + " " + unitList[j];
	theForm.theMeasSegment.value = currentMeasure + " " + unitList[j];
	showLayer("measureBox");

}