IriSP.Widgets.Polemic.prototype.drawNoStackgraph = function(_max, _slices) {

    var _this = this;

    this.is_stackgraph = false;

    if (_max) {

        this.height = (2 + _max) * this.element_height;

        this.$zone.css({

            width: this.width + "px",

            height: this.height + "px",

            position: "relative"

        });

        var _x = 0;

        function displayAnnotation(_elx, _ely, _pol, _col, _annotation) {

            var _htmlAnnot = Mustache.to_html(

                '<div class="Ldt-Polemic-TweetDiv Ldt-TraceMe" trace-info="annotation-id:{{id}}, media-id:{{media_id}}, polemic:{{polemic}}, time:{{time}}" polemic-color="{{color}}"'

                + ' tweet-title="{{title}}" annotation-id="{{id}}" style="width: {{width}}px; height: {{height}}px; top: {{top}}px; left: {{left}}px; background: {{color}}"></div>',

            {

                id: _annotation.id,

                media_id: _this.source.currentMedia.id,

                polemic: _pol,

                left: _elx,

                top: _ely,

                color: _col,

                width: (_this.element_width-1),

                height: _this.element_height,

                title: _annotation.title,

                time: _annotation.begin.toString()

            });

            var _el = IriSP.jQuery(_htmlAnnot);

            _el.mouseover(function() {

                _annotation.trigger("select");

            }).mouseout(function() {

                _annotation.trigger("unselect");

            }).click(function() {

                _annotation.trigger("click");

                return false;

            });

            IriSP.attachDndData(_el, {

                title: _annotation.title,

                description: _annotation.description,

                image: _annotation.thumbnail,

                uri: (typeof _annotation.url !== "undefined"

                    ? _annotation.url

                    : (document.location.href.replace(/#.*$/,'') + '#id='  + _annotation.id)),

            text: '[' + _annotation.begin.toString() + '] ' + _annotation.title

            });

            // test if annotation has several colors.

            var colAr = [];

            var _polemicVersion = (_annotation.content && _annotation.content.polemic_version) || _this.default_version,

                _polemics = _this.getPolemics(_polemicVersion) || [],

                _pol,

                _polKey,

                _polDef,

                _rgxp;

            for(var _j = 0; _j < _polemics.length; _j++) {

                _pol = _polemics[_j];

                _rgxp = _pol.rgxp || (_pol.rgxp = IriSP.Model.regexpFromTextOrArray(_pol.keywords));

                if(_rgxp.test(_annotation.description)) {

                    colAr.push(_pol.color);

                }

            }

            // display annotation

            _annotation.on("select", function() {

                if (_this.tooltip) {

                    _this.tooltip.show(

                        + Math.floor(_elx + (_this.element_width - 1) / 2),

                        + _ely,

                        _annotation.title,

                        ( (colAr.length>1) ? colAr : _col )

                    );

                }

                _this.$tweets.each(function() {

                    var _e = IriSP.jQuery(this);

                    _e.css(

                        "opacity",

                        ( _e.attr("annotation-id") == _annotation.id ? 1 : .3 )

                    );

                });

            });

            _annotation.on("unselect", function() {

                if (_this.tooltip) {

                    _this.tooltip.hide();

                }

                _this.$tweets.css("opacity",1);

            });

            _annotation.on("found", function() {

                _el.css({

                    "background" : _this.foundcolor,

                    "opacity" : 1

                });

            });

            _annotation.on("not-found", function() {

                _el.css({

                    "background" : _col,

                    "opacity" : .3

                });

            });

            _this.$zone.append(_el);

        };

        IriSP._(_slices).forEach(function(_slice) {

            var _y = _this.height;

            _slice.annotations.forEach(function(_annotation) {

                _y -= _this.element_height;

                displayAnnotation(_x, _y, "none", _this.defaultcolor, _annotation);

            });

            IriSP._(_slice.polemicStacks).forEach(function(_annotations) {

                var _color = _annotations.polemicDef.color,

                    _polemic = _annotations.polemicDef.name;

                _annotations.annotations.forEach(function(_annotation) {

                    _y -= _this.element_height;

                    displayAnnotation(_x, _y, _polemic, _color, _annotation);

                });

            });

            _x += _this.element_width;

        });

        this.$tweets = this.$.find(".Ldt-Polemic-TweetDiv");

        this.source.getAnnotations().on("search-cleared", function() {

            _this.$tweets.each(function() {

                var _el = IriSP.jQuery(this);

                _el.css({

                    "background" : _el.attr("polemic-color"),

                    "opacity" : 1

                });

            });

        });

    } else {

        this.$zone.hide();

    }

}

IriSP.Widgets.Polemic.prototype.drawStackgraph = function(_max, _slices) {

    this.is_stackgraph = true;

    var _this = this;

    this.height = (2 + this.max_elements) * this.element_height;

    this.$zone.css({

        width: this.width + "px",

        height: this.height + "px",

        position: "relative"

    });

    var _x = 0,

        _html = '',

        _scale = this.max_elements * this.element_height / _max;

    function displayStackElement(_x, _y, _h, _color, _nums, _begin, _end, _polemic) {

        _html += Mustache.to_html(

            '<div class="Ldt-Polemic-TweetDiv Ldt-TraceMe" trace-info="annotation-block, media-id={{media_id}}, polemic={{polemic}}, time:{{begin}}" pos-x="{{posx}}" pos-y="{{top}}" annotation-counts="{{nums}}" begin-time="{{begin}}" end-time="{{end}}"'

            + ' style="width: {{width}}px; height: {{height}}px; top: {{top}}px; left: {{left}}px; background: {{color}}"></div>',

        {

            nums: _nums,

            posx: Math.floor(_x + (_this.element_width - 1) / 2),

            media_id: _this.source.currentMedia.id,

            polemic: _polemic,

            left: _x,

            top: _y,

            color: _color,

            width: (_this.element_width-1),

            height: _h,

            begin: _begin,

            end: _end

        });

    }

    IriSP._(_slices).forEach(function(_slice) {

        var _y = _this.height,

            _nums = _slice.annotations.length + "|" + _this.defaultcolor + "," + IriSP._(_slice.polemicStacks).map(function(_annotations) {

                return _annotations.annotations.length + "|" + _annotations.polemicDef.color;

            }).join(",");

        if (_slice.annotations.length) {

            var _h = Math.ceil(_scale * _slice.annotations.length);

            _y -= _h;

            displayStackElement(_x, _y, _h, _this.defaultcolor, _nums, _slice.begin, _slice.end, "none");

        }

        IriSP._(_slice.polemicStacks).forEach(function(_annotations) {

            if (_annotations.annotations.length) {

                var _color = _annotations.polemicDef.color,

                    _polemic = _annotations.polemicDef.name,

                    _h = Math.ceil(_scale * _annotations.annotations.length);

                _y -= _h;

                displayStackElement(_x, _y, _h, _color, _nums, _slice.begin, _slice.end, _polemic);

            }

        });

        _x += _this.element_width;

    });

    this.$zone.append(_html);

    this.$tweets = this.$.find(".Ldt-Polemic-TweetDiv");

    this.$tweets

        .mouseover(function() {

            var _el = IriSP.jQuery(this),

                _nums = _el.attr("annotation-counts").split(","),

                _html = '<p>' + _this.l10n.from_ + _el.attr("begin-time") + _this.l10n._to_ + _el.attr("end-time") + '</p>';

            _html = IriSP._.reduce(_nums, function(_htmlStr, _countStr) {

                var _components = _countStr.split("|");

                _htmlStr += '<div class="Ldt-Tooltip-AltColor" style="background: ' + _components[1] + '"></div><p>' + _components[0] + _this.l10n._annotations + '</p>';

                return _htmlStr;

            }, _html);

            if (_this.tooltip) {

                _this.tooltip.show(+ _el.attr("pos-x"), + _el.attr("pos-y"), _html);

            }

        })

        .mouseout(function() {

            if (_this.tooltip) {

                _this.tooltip.hide();

            }

        });

}