Subversion-Projekte lars-tiefland.cienc

/**
 * @license Highstock JS v2.1.8 (2015-08-20)
 *
 * (c) 2011-2014 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */

/*global HighchartsAdapter*/
(function (Highcharts) {


var UNDEFINED,
        Axis = Highcharts.Axis,
        Chart = Highcharts.Chart,
        Color = Highcharts.Color,
        Legend = Highcharts.Legend,
        LegendSymbolMixin = Highcharts.LegendSymbolMixin,
        Series = Highcharts.Series,
        Point = Highcharts.Point,
        
        defaultOptions = Highcharts.getOptions(),
        each = Highcharts.each,
        extend = Highcharts.extend,
        extendClass = Highcharts.extendClass,
        merge = Highcharts.merge,
        pick = Highcharts.pick,
        seriesTypes = Highcharts.seriesTypes,
        wrap = Highcharts.wrap,
        noop = function () {};

        


/**
 * The ColorAxis object for inclusion in gradient legends
 */
var ColorAxis = Highcharts.ColorAxis = function () {
        this.isColorAxis = true;
        this.init.apply(this, arguments);
};
extend(ColorAxis.prototype, Axis.prototype);
extend(ColorAxis.prototype, {
        defaultColorAxisOptions: {
                lineWidth: 0,
                minPadding: 0,
                maxPadding: 0,
                gridLineWidth: 1,
                tickPixelInterval: 72,
                startOnTick: true,
                endOnTick: true,
                offset: 0,
                marker: {
                        animation: {
                                duration: 50
                        },
                        color: 'gray',
                        width: 0.01
                },
                labels: {
                        overflow: 'justify'
                },
                minColor: '#EFEFFF',
                maxColor: '#003875',
                tickLength: 5
        },
        init: function (chart, userOptions) {
                var horiz = chart.options.legend.layout !== 'vertical',
                        options;

                // Build the options
                options = merge(this.defaultColorAxisOptions, {
                        side: horiz ? 2 : 1,
                        reversed: !horiz
                }, userOptions, {
                        opposite: !horiz,
                        showEmpty: false,
                        title: null,
                        isColor: true
                });

                Axis.prototype.init.call(this, chart, options);

                // Base init() pushes it to the xAxis array, now pop it again
                //chart[this.isXAxis ? 'xAxis' : 'yAxis'].pop();

                // Prepare data classes
                if (userOptions.dataClasses) {
                        this.initDataClasses(userOptions);
                }
                this.initStops(userOptions);

                // Override original axis properties
                this.horiz = horiz;
                this.zoomEnabled = false;
        },

        /*
         * Return an intermediate color between two colors, according to pos where 0
         * is the from color and 1 is the to color. 
         * NOTE: Changes here should be copied
         * to the same function in drilldown.src.js and solid-gauge-src.js.
         */
        tweenColors: function (from, to, pos) {
                // Check for has alpha, because rgba colors perform worse due to lack of
                // support in WebKit.
                var hasAlpha,
                        ret;

                // Unsupported color, return to-color (#3920)
                if (!to.rgba.length || !from.rgba.length) {
                        ret = to.raw || 'none';

                // Interpolate
                } else {
                        from = from.rgba;
                        to = to.rgba;
                        hasAlpha = (to[3] !== 1 || from[3] !== 1);
                        ret = (hasAlpha ? 'rgba(' : 'rgb(') + 
                                Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' + 
                                Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' + 
                                Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) + 
                                (hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')';
                }
                return ret;
        },

        initDataClasses: function (userOptions) {
                var axis = this,
                        chart = this.chart,
                        dataClasses,
                        colorCounter = 0,
                        options = this.options,
                        len = userOptions.dataClasses.length;
                this.dataClasses = dataClasses = [];
                this.legendItems = [];

                each(userOptions.dataClasses, function (dataClass, i) {
                        var colors;

                        dataClass = merge(dataClass);
                        dataClasses.push(dataClass);
                        if (!dataClass.color) {
                                if (options.dataClassColor === 'category') {
                                        colors = chart.options.colors;
                                        dataClass.color = colors[colorCounter++];
                                        // loop back to zero
                                        if (colorCounter === colors.length) {
                                                colorCounter = 0;
                                        }
                                } else {
                                        dataClass.color = axis.tweenColors(
                                                Color(options.minColor), 
                                                Color(options.maxColor), 
                                                len < 2 ? 0.5 : i / (len - 1) // #3219
                                        );
                                }
                        }
                });
        },

        initStops: function (userOptions) {
                this.stops = userOptions.stops || [
                        [0, this.options.minColor],
                        [1, this.options.maxColor]
                ];
                each(this.stops, function (stop) {
                        stop.color = Color(stop[1]);
                });
        },

        /**
         * Extend the setOptions method to process extreme colors and color
         * stops.
         */
        setOptions: function (userOptions) {
                Axis.prototype.setOptions.call(this, userOptions);

                this.options.crosshair = this.options.marker;
                this.coll = 'colorAxis';
        },

        setAxisSize: function () {
                var symbol = this.legendSymbol,
                        chart = this.chart,
                        x,
                        y,
                        width,
                        height;

                if (symbol) {
                        this.left = x = symbol.attr('x');
                        this.top = y = symbol.attr('y');
                        this.width = width = symbol.attr('width');
                        this.height = height = symbol.attr('height');
                        this.right = chart.chartWidth - x - width;
                        this.bottom = chart.chartHeight - y - height;

                        this.len = this.horiz ? width : height;
                        this.pos = this.horiz ? x : y;
                }
        },

        /** 
         * Translate from a value to a color
         */
        toColor: function (value, point) {
                var pos,
                        stops = this.stops,
                        from,
                        to,
                        color,
                        dataClasses = this.dataClasses,
                        dataClass,
                        i;

                if (dataClasses) {
                        i = dataClasses.length;
                        while (i--) {
                                dataClass = dataClasses[i];
                                from = dataClass.from;
                                to = dataClass.to;
                                if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) {
                                        color = dataClass.color;
                                        if (point) {
                                                point.dataClass = i;
                                        }
                                        break;
                                }       
                        }

                } else {

                        if (this.isLog) {
                                value = this.val2lin(value);
                        }
                        pos = 1 - ((this.max - value) / ((this.max - this.min) || 1));
                        i = stops.length;
                        while (i--) {
                                if (pos > stops[i][0]) {
                                        break;
                                }
                        }
                        from = stops[i] || stops[i + 1];
                        to = stops[i + 1] || from;

                        // The position within the gradient
                        pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);

                        color = this.tweenColors(
                                from.color, 
                                to.color,
                                pos
                        );
                }
                return color;
        },

        getOffset: function () {
                var group = this.legendGroup,
                        sideOffset = this.chart.axisOffset[this.side];
                
                if (group) {

                        Axis.prototype.getOffset.call(this);
                        
                        if (!this.axisGroup.parentGroup) {

                                // Move the axis elements inside the legend group
                                this.axisGroup.add(group);
                                this.gridGroup.add(group);
                                this.labelGroup.add(group);

                                this.added = true;

                                this.labelLeft = 0;
                                this.labelRight = this.width;
                        }
                        // Reset it to avoid color axis reserving space
                        this.chart.axisOffset[this.side] = sideOffset;
                }
        },

        /**
         * Create the color gradient
         */
        setLegendColor: function () {
                var grad,
                        horiz = this.horiz,
                        options = this.options,
                        reversed = this.reversed;

                grad = horiz ? [+reversed, 0, +!reversed, 0] : [0, +!reversed, 0, +reversed]; // #3190
                this.legendColor = {
                        linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] },
                        stops: options.stops || [
                                [0, options.minColor],
                                [1, options.maxColor]
                        ]
                };
        },

        /**
         * The color axis appears inside the legend and has its own legend symbol
         */
        drawLegendSymbol: function (legend, item) {
                var padding = legend.padding,
                        legendOptions = legend.options,
                        horiz = this.horiz,
                        box,
                        width = pick(legendOptions.symbolWidth, horiz ? 200 : 12),
                        height = pick(legendOptions.symbolHeight, horiz ? 12 : 200),
                        labelPadding = pick(legendOptions.labelPadding, horiz ? 16 : 30),
                        itemDistance = pick(legendOptions.itemDistance, 10);

                this.setLegendColor();

                // Create the gradient
                item.legendSymbol = this.chart.renderer.rect(
                        0,
                        legend.baseline - 11,
                        width,
                        height
                ).attr({
                        zIndex: 1
                }).add(item.legendGroup);
                box = item.legendSymbol.getBBox();

                // Set how much space this legend item takes up
                this.legendItemWidth = width + padding + (horiz ? itemDistance : labelPadding);
                this.legendItemHeight = height + padding + (horiz ? labelPadding : 0);
        },
        /**
         * Fool the legend
         */
        setState: noop,
        visible: true,
        setVisible: noop,
        getSeriesExtremes: function () {
                var series;
                if (this.series.length) {
                        series = this.series[0];
                        this.dataMin = series.valueMin;
                        this.dataMax = series.valueMax;
                }
        },
        drawCrosshair: function (e, point) {
                var plotX = point && point.plotX,
                        plotY = point && point.plotY,
                        crossPos,
                        axisPos = this.pos,
                        axisLen = this.len;
                
                if (point) {
                        crossPos = this.toPixels(point[point.series.colorKey]);
                        if (crossPos < axisPos) {
                                crossPos = axisPos - 2;
                        } else if (crossPos > axisPos + axisLen) {
                                crossPos = axisPos + axisLen + 2;
                        }
                        
                        point.plotX = crossPos;
                        point.plotY = this.len - crossPos;
                        Axis.prototype.drawCrosshair.call(this, e, point);
                        point.plotX = plotX;
                        point.plotY = plotY;
                        
                        if (this.cross) {
                                this.cross
                                        .attr({
                                                fill: this.crosshair.color
                                        })
                                        .add(this.legendGroup);
                        }
                }
        },
        getPlotLinePath: function (a, b, c, d, pos) {
                if (typeof pos === 'number') { // crosshairs only // #3969 pos can be 0 !!
                        return this.horiz ? 
                                ['M', pos - 4, this.top - 6, 'L', pos + 4, this.top - 6, pos, this.top, 'Z'] : 
                                ['M', this.left, pos, 'L', this.left - 6, pos + 6, this.left - 6, pos - 6, 'Z'];
                } else {
                        return Axis.prototype.getPlotLinePath.call(this, a, b, c, d);
                }
        },

        update: function (newOptions, redraw) {
                var chart = this.chart,
                        legend = chart.legend;

                each(this.series, function (series) {
                        series.isDirtyData = true; // Needed for Axis.update when choropleth colors change
                });

                // When updating data classes, destroy old items and make sure new ones are created (#3207)
                if (newOptions.dataClasses && legend.allItems) {
                        each(legend.allItems, function (item) {
                                if (item.isDataClass) {
                                        item.legendGroup.destroy();
                                }
                        });                     
                        chart.isDirtyLegend = true;
                }

                // Keep the options structure updated for export. Unlike xAxis and yAxis, the colorAxis is 
                // not an array. (#3207)
                chart.options[this.coll] = merge(this.userOptions, newOptions);

                Axis.prototype.update.call(this, newOptions, redraw);
                if (this.legendItem) {
                        this.setLegendColor();
                        legend.colorizeItem(this, true);
                }
        },

        /**
         * Get the legend item symbols for data classes
         */
        getDataClassLegendSymbols: function () {
                var axis = this,
                        chart = this.chart,
                        legendItems = this.legendItems,
                        legendOptions = chart.options.legend,
                        valueDecimals = legendOptions.valueDecimals,
                        valueSuffix = legendOptions.valueSuffix || '',
                        name;

                if (!legendItems.length) {
                        each(this.dataClasses, function (dataClass, i) {
                                var vis = true,
                                        from = dataClass.from,
                                        to = dataClass.to;
                                
                                // Assemble the default name. This can be overridden by legend.options.labelFormatter
                                name = '';
                                if (from === UNDEFINED) {
                                        name = '< ';
                                } else if (to === UNDEFINED) {
                                        name = '> ';
                                }
                                if (from !== UNDEFINED) {
                                        name += Highcharts.numberFormat(from, valueDecimals) + valueSuffix;
                                }
                                if (from !== UNDEFINED && to !== UNDEFINED) {
                                        name += ' - ';
                                }
                                if (to !== UNDEFINED) {
                                        name += Highcharts.numberFormat(to, valueDecimals) + valueSuffix;
                                }
                                
                                // Add a mock object to the legend items
                                legendItems.push(extend({
                                        chart: chart,
                                        name: name,
                                        options: {},
                                        drawLegendSymbol: LegendSymbolMixin.drawRectangle,
                                        visible: true,
                                        setState: noop,
                                        isDataClass: true,
                                        setVisible: function () {
                                                vis = this.visible = !vis;
                                                each(axis.series, function (series) {
                                                        each(series.points, function (point) {
                                                                if (point.dataClass === i) {
                                                                        point.setVisible(vis);
                                                                }
                                                        });
                                                });
                                                
                                                chart.legend.colorizeItem(this, vis);
                                        }
                                }, dataClass));
                        });
                }
                return legendItems;
        },
        name: '' // Prevents 'undefined' in legend in IE8
});

/**
 * Handle animation of the color attributes directly
 */
each(['fill', 'stroke'], function (prop) {
        HighchartsAdapter.addAnimSetter(prop, function (fx) {
                fx.elem.attr(prop, ColorAxis.prototype.tweenColors(Color(fx.start), Color(fx.end), fx.pos));
        });
});

/**
 * Extend the chart getAxes method to also get the color axis
 */
wrap(Chart.prototype, 'getAxes', function (proceed) {

        var options = this.options,
                colorAxisOptions = options.colorAxis;

        proceed.call(this);

        this.colorAxis = [];
        if (colorAxisOptions) {
                proceed = new ColorAxis(this, colorAxisOptions); // Fake assignment for jsLint
        }
});


/**
 * Wrap the legend getAllItems method to add the color axis. This also removes the 
 * axis' own series to prevent them from showing up individually.
 */
wrap(Legend.prototype, 'getAllItems', function (proceed) {
        var allItems = [],
                colorAxis = this.chart.colorAxis[0];

        if (colorAxis) {

                // Data classes
                if (colorAxis.options.dataClasses) {
                        allItems = allItems.concat(colorAxis.getDataClassLegendSymbols());
                // Gradient legend
                } else {
                        // Add this axis on top
                        allItems.push(colorAxis);
                }

                // Don't add the color axis' series
                each(colorAxis.series, function (series) {
                        series.options.showInLegend = false;
                });
        }

        return allItems.concat(proceed.call(this));
});/**
 * Mixin for maps and heatmaps
 */
var colorPointMixin = {
        /**
         * Set the visibility of a single point
         */
        setVisible: function (vis) {
                var point = this,
                        method = vis ? 'show' : 'hide';

                // Show and hide associated elements
                each(['graphic', 'dataLabel'], function (key) {
                        if (point[key]) {
                                point[key][method]();
                        }
                });
        }
};
var colorSeriesMixin = {

        pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
                stroke: 'borderColor',
                'stroke-width': 'borderWidth',
                fill: 'color',
                dashstyle: 'dashStyle'
        },
        pointArrayMap: ['value'],
        axisTypes: ['xAxis', 'yAxis', 'colorAxis'],
        optionalAxis: 'colorAxis',
        trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'],
        getSymbol: noop,
        parallelArrays: ['x', 'y', 'value'],
        colorKey: 'value',
        
        /**
         * In choropleth maps, the color is a result of the value, so this needs translation too
         */
        translateColors: function () {
                var series = this,
                        nullColor = this.options.nullColor,
                        colorAxis = this.colorAxis,
                        colorKey = this.colorKey;

                each(this.data, function (point) {
                        var value = point[colorKey],
                                color;

                        color = point.options.color || 
                                (value === null ? nullColor : (colorAxis && value !== undefined) ? colorAxis.toColor(value, point) : point.color || series.color);

                        if (color) {
                                point.color = color;
                        }
                });
        }
};
/**
 * Extend the default options with map options
 */
defaultOptions.plotOptions.heatmap = merge(defaultOptions.plotOptions.scatter, {
        animation: false,
        borderWidth: 0,
        nullColor: '#F8F8F8',
        dataLabels: {
                formatter: function () { // #2945
                        return this.point.value;
                },
                inside: true,
                verticalAlign: 'middle',
                crop: false,
                overflow: false,
                padding: 0 // #3837
        },
        marker: null,
        pointRange: null, // dynamically set to colsize by default
        tooltip: {
                pointFormat: '{point.x}, {point.y}: {point.value}<br/>'
        },
        states: {
                normal: {
                        animation: true
                },
                hover: {
                        halo: false,  // #3406, halo is not required on heatmaps
                        brightness: 0.2
                }
        }
});

// The Heatmap series type
seriesTypes.heatmap = extendClass(seriesTypes.scatter, merge(colorSeriesMixin, {
        type: 'heatmap',
        pointArrayMap: ['y', 'value'],
        hasPointSpecificOptions: true,
        pointClass: extendClass(Point, colorPointMixin),
        supportsDrilldown: true,
        getExtremesFromAll: true,
        directTouch: true,

        /**
         * Override the init method to add point ranges on both axes.
         */
        init: function () {
                var options;
                seriesTypes.scatter.prototype.init.apply(this, arguments);

                options = this.options;
                this.pointRange = options.pointRange = pick(options.pointRange, options.colsize || 1); // #3758, prevent resetting in setData
                this.yAxis.axisPointRange = options.rowsize || 1; // general point range
        },
        translate: function () {
                var series = this,
                        options = series.options,
                        xAxis = series.xAxis,
                        yAxis = series.yAxis;

                series.generatePoints();

                each(series.points, function (point) {
                        var xPad = (options.colsize || 1) / 2,
                                yPad = (options.rowsize || 1) / 2,
                                x1 = Math.round(xAxis.len - xAxis.translate(point.x - xPad, 0, 1, 0, 1)),
                                x2 = Math.round(xAxis.len - xAxis.translate(point.x + xPad, 0, 1, 0, 1)),
                                y1 = Math.round(yAxis.translate(point.y - yPad, 0, 1, 0, 1)),
                                y2 = Math.round(yAxis.translate(point.y + yPad, 0, 1, 0, 1));

                        // Set plotX and plotY for use in K-D-Tree and more
                        point.plotX = point.clientX = (x1 + x2) / 2;
                        point.plotY = (y1 + y2) / 2;

                        point.shapeType = 'rect';
                        point.shapeArgs = {
                                x: Math.min(x1, x2),
                                y: Math.min(y1, y2),
                                width: Math.abs(x2 - x1),
                                height: Math.abs(y2 - y1)
                        };
                });
                
                series.translateColors();

                // Make sure colors are updated on colorAxis update (#2893)
                if (this.chart.hasRendered) {
                        each(series.points, function (point) {
                                point.shapeArgs.fill = point.options.color || point.color; // #3311
                        });
                }
        },
        drawPoints: seriesTypes.column.prototype.drawPoints,
        animate: noop,
        getBox: noop,
        drawLegendSymbol: LegendSymbolMixin.drawRectangle,

        getExtremes: function () {
                // Get the extremes from the value data
                Series.prototype.getExtremes.call(this, this.valueData);
                this.valueMin = this.dataMin;
                this.valueMax = this.dataMax;

                // Get the extremes from the y data
                Series.prototype.getExtremes.call(this);
        }
                
}));


}(Highcharts));