// display_measure.js

var m_currentMeasureToolbarTool = "polyline";
var m_measureToolbarImagePath = "images/";
var m_measureToolbarImageExtension = ".gif";
var m_measureDisplay = "MeasureDisplay";
var m_measureToolbarId = "MeasureToolbar";
var m_measureLengthsTotal = 0.0;
var m_measureAreasTotal = 0.0;
var m_measureXOffset = 0;
var m_measureYOffset = 0;
var m_MeasureTypes = new Array();
m_MeasureTypes[0] = "point";
m_MeasureTypes[1] = "polyline";
m_MeasureTypes[2] = "polygon";
var m_measureMoveFunction = null;
var m_measureCoords = "";
var m_measureLastCoords = "";
var m_measureMouseUpSet = false;

var m_measureToolbar = null;
var m_measureGraphicFeature = null;

function checkMeasureToolbarBorder(cell, type) {
    if (type.toLowerCase() == m_currentMeasureToolbarTool)
        cell.style.borderColor = "Black";
    else
        cell.style.borderColor = "White";
}

// set current measure tool
function setMeasureToolbarTool(type) {
    m_currentMeasureToolbarTool = type.toLowerCase();
    var cellObj;
    var buttonId = "";
    for (var i = 0; i < m_MeasureTypes.length; i++) {
        buttonId = "MeasureToolbarButton_" + m_MeasureTypes[i];
        cellObj = document.getElementById(buttonId);
        if (cellObj != null) {
            if (m_MeasureTypes[i] == m_currentMeasureToolbarTool) {
                cellObj.style.borderColor = "Black";
                cellObj.style.backgroundColor = "#EEEEEE";
                startMeasure();
            }
            else {
                cellObj.style.borderColor = "White";
                cellObj.style.backgroundColor = "White";
            }
        }
    }
}


// Polyline Measure action ... for distances
function MeasurePolyline(map) {
    if (map != null) {
        map.getGeometry(ESRI.ADF.Graphics.ShapeType.Path, MapCoordsClick, null, 'black', 'blue', 'crosshair', true);
        vectortoolbar = "MeasureToolbar";
    }
}

// Polygon Measure action ... for areas
function MeasurePolygon(map) {
    if (map != null) {
        map.getGeometry(ESRI.ADF.Graphics.ShapeType.Ring, MapCoordsClick, null, 'black', 'black', 'crosshair', true);
        vectortoolbar = "MeasureToolbar";
    }
}

// Point Measure action ... for location coordinates
function MeasurePoint(map) {
    if (map != null) {
        map.getGeometry(ESRI.ADF.Graphics.ShapeType.Point, MapCoordsClick, null, 'black', null, 'pointer', true);
    }
}

// Handler for MeasurePoint clicks
function MapCoordsClick(geom, evtArgs) {
    var geomString = '';
    var type = '';
    removeMeasureGraphic();
    var style = null;
    if (ESRI.ADF.Geometries.Point.isInstanceOfType(geom)) {
        geomString = geom.toString(':');
        type = 'point';
        style = new ESRI.ADF.Graphics.MarkerSymbol("images/crosshair.png", 6, 6);
    }
    else if (ESRI.ADF.Geometries.Polyline.isInstanceOfType(geom)) {
        geomString = geom.getPath(0).toString('|', ':');
        type = 'polyline';
        style = new ESRI.ADF.Graphics.LineSymbol("black", 2);
    }
    else if (ESRI.ADF.Geometries.Polygon.isInstanceOfType(geom)) {
        geomString = geom.getRing(0).toString('|', ':');
        type = 'polygon';
        style = new ESRI.ADF.Graphics.FillSymbol("black", "black", 2);
        style.set_opacity(0.2);
    }
    m_measureGraphicFeature = $create(ESRI.ADF.Graphics.GraphicFeature,
		        { "id": "MeasurePointIcon", "geometry": geom, "symbol": style });
    map.addGraphic(m_measureGraphicFeature);
    coordString = geomString;

    m_measureLastCoords = m_measureCoords;
    m_measureCoords = "";
    var argument = 'ControldID=' + map.get_id() + '&EventArg=' + type + '&coords=' + geomString + '&VectorMode=measure';
    var measU = $get("MeasureUnits");
    var aU = $get("AreaUnits");
    var mU = $get("MapUnits");
    if (measU != null) argument += "&MeasureUnits=" + measU.value;
    if (aU != null) argument += "&AreaUnits=" + aU.value;
    if (mU != null) argument += "&MapUnits=" + mU.options[mU.selectedIndex].value;

    var context = this;
    eval(measureVectorCallbackFunctionString);
}

function MeasureCoordsMouseUp(sender, args) {
    m_measureToolbar = $get(m_measureToolbarId);
    if (m_measureToolbar != null) {
        var mtb = $find(m_measureToolbarId);
        if (mtb != null) {
            var fp = mtb.get_element();
            if (fp.style.display == 'none') mtb.show(false);
        }
    }
    if (m_currentMeasureToolbarTool != "point") {
        var coords = args.coordinate;
        if (coords != null && !isNaN(coords.get_x()) && !isNaN(coords.get_y())) {
            // ignore null or non-numeric input
            if (m_measureCoords.length > 0) {
                if (args.button == Sys.UI.MouseButton.rightButton) {
                    var pos = m_measureCoords.lastIndexOf("|");
                    m_measureCoords = m_measureCoords.substring(0, pos);
                } else if (args.button == Sys.UI.MouseButton.leftButton) {
                    m_measureCoords += (m_measureCoords.length > 0 ? "|" : "") + coords.get_x() + ":" + coords.get_y();
                } else
                    return;
                var argument = 'ControldID=' + map.get_id() + '&EventArg=' + m_currentMeasureToolbarTool + '&coords=' + m_measureCoords + '&VectorMode=measure';
                var measU = $get("MeasureUnits");
                var aU = $get("AreaUnits");
                var mU = $get("MapUnits");
                if (measU != null) argument += "&MeasureUnits=" + measU.value;
                if (aU != null) argument += "&AreaUnits=" + aU.value;
                if (mU != null) argument += "&MapUnits=" + mU.options[mU.selectedIndex].value;

                var context = this;
                eval(measureVectorCallbackFunctionString);
            } else {
                removeMeasureGraphic();
                if (args.button == Sys.UI.MouseButton.rightButton)
                    m_measureCoords = "";
                else if (args.button == Sys.UI.MouseButton.leftButton)
                    m_measureCoords = coords.get_x() + ":" + coords.get_y();
            }
            m_measureLastCoords = m_measureCoords;
            //	    } else {
            //	        window.status = "no coords";
        }
    }
}

function removeMeasureGraphic() {
    if (m_measureGraphicFeature != null) {
        map.removeGraphic(m_measureGraphicFeature);
        m_measureGraphicFeature.dispose();
        m_measureGraphicFeature = null;
    }

}

// measure tool is selected... call current type (polyline for distance, polygon for area)
function startMeasure() {
    m_measureToolbar = $get(m_measureToolbarId);
    if (m_measureToolbar != null) {
        var mtb = $find(m_measureToolbarId);
        if (mtb != null) {
            var fp = mtb.get_element();
            if (fp.style.display == 'none') mtb.show(false);
        }
    }
    if (m_measureDisplay != null) {
        md = $get(m_measureDisplay);
    }
    if (m_currentMeasureToolbarTool == "point") {
        if (md != null) md.innerHTML = "Cliquez dans la carte pour obtenir les coordonnées du point.<br />";
        MeasurePoint(map);
    } else if (m_currentMeasureToolbarTool == "polyline") {
        if (md != null) md.innerHTML = "Cliquez dans la carte et dessinez une ligne. Double-cliquez pour terminer la ligne<br />";
        MeasurePolyline(map);
    } else {
        if (md != null) md.innerHTML = "Cliquez dans la carte et dessinez un polygone. Double-cliquez pour terminer le polygone.<br />";
        MeasurePolygon(map);
    }
    if (!m_measureMouseUpSet) {
        map.add_mouseUp(MeasureCoordsMouseUp);
        m_measureMouseUpSet = true;
    }
}
function measureComplete(result, id, area, perimeter, segment, totaldistance) {
    var md = $get(m_measureDisplay);
    if (result) {
        md.innerHTML = result;
    }
    else {
        //just replace values
        var tdperimeter = $get("tdperimiter");
        var tdarea = $get("tdarea");
        var tdsegment = $get("tdsegment");
        var tdtotaldistance = $get("tdtotaldistance");

        if (tdarea) { tdarea.innerHTML = area; }
        if (tdperimeter) { tdperimeter.innerHTML = perimeter; }
        if (tdsegment && segment) { tdsegment.innerHTML = segment; }
        if (tdtotaldistance && totaldistance) { tdtotaldistance.innerHTML = totaldistance; }
    }
}

function closeMeasureToolbarTool(id) {
    hideMeasureToolbarTool(id);
    map.cancelGetGeometry();
    map.remove_mouseUp(MeasureCoordsMouseUp);
    m_measureMouseUpSet = false;
}

function hideMeasureToolbarTool(id) {
    m_measureToolbar = $get(m_measureToolbarId);
    if (m_measureToolbar != null) {
        var mtb = $find(m_measureToolbarId);
        if (mtb != null) mtb.hide();
    }
    removeMeasureGraphic();
}

// update distance unit settings... request new totals from server
function changeMeasureUnits() {
    var m2 = $get("MeasureUnits2");
    var a2 = $get("AreaUnits2");
    var i = m2.selectedIndex;
    var m = m2.options[i].value;
    var mu = $get("MeasureUnits");
    mu.value = m;
    if (coordString == null) coordString = "";
    var argument = "ControlID=" + map.get_id() + "&EventArg=" + m_currentMeasureToolbarTool + "&ControlType=Map&coords=" + m_measureLastCoords + "&VectorMode=measure&VectorAction=AddPoint&MeasureUnits=" + m + "&refresh=true";
    if (a2 != null) {
        argument += "&AreaUnits=" + a2.value;
    }
    var context = map.get_id() + "," + m_currentMeasureToolbarTool;
    eval(measureVectorCallbackFunctionString);
}

// update area unit settings... request new totals from server
function changeAreaUnits() {
    var m2 = $get("MeasureUnits2");
    var a2 = $get("AreaUnits2");
    var i = a2.selectedIndex;
    var a = a2.options[i].value;
    var au = $get("AreaUnits");
    au.value = a;
    coordString = map.coords;
    
    if (coordString == null) coordString = "";
    var argument = "ControlID=" + map.get_id() + "&EventArg=" + m_currentMeasureToolbarTool + "&ControlType=Map&coords=" + m_measureLastCoords + "&VectorMode=measure&VectorAction=AddPoint&AreaUnits=" + a + "&refresh=true";
    if (m2 != null) {
        argument += "&MeasureUnits=" + m2.value;
    }
    var context = map.get_id() + "," + m_currentMeasureToolbarTool;

    eval(measureVectorCallbackFunctionString);
}

// set up the images for transparency in IE6
function setIE6MeasureToolbarImages() {
    var imageId = "";
    var imgSrc = "";
    var imgObj;
    for (var i = 0; i < m_MeasureTypes.length; i++) {
        imageId = "ToolbarImage_" + m_MeasureTypes[i];
        imgObj = document.images[imageId];
        if (imgObj != null) {
            imgSrc = imgObj.src;
            imgObj.src = "images/blank.gif";
            imgObj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src=" + imgSrc + ")";
        }
    }
}

// add handler for closing measure floating panel to clear graphic
function setUpMeasureEvent() {
    var mtb = $find(m_measureToolbarId);
    // add handler for dialog close
    mtb.add_hide(removeMeasureGraphic);
}