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Direktori : /home/medipszd/www/bower_components/jquery-sparkline/src/ |
Current File : /home/medipszd/www/bower_components/jquery-sparkline/src/chart-discrete.js |
/** * Discrete charts */ $.fn.sparkline.discrete = discrete = createClass($.fn.sparkline._base, barHighlightMixin, { type: 'discrete', init: function (el, values, options, width, height) { discrete._super.init.call(this, el, values, options, width, height); this.regionShapes = {}; this.values = values = $.map(values, Number); this.min = Math.min.apply(Math, values); this.max = Math.max.apply(Math, values); this.range = this.max - this.min; this.width = width = options.get('width') === 'auto' ? values.length * 2 : this.width; this.interval = Math.floor(width / values.length); this.itemWidth = width / values.length; if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.min)) { this.min = options.get('chartRangeMin'); } if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.max)) { this.max = options.get('chartRangeMax'); } this.initTarget(); if (this.target) { this.lineHeight = options.get('lineHeight') === 'auto' ? Math.round(this.canvasHeight * 0.3) : options.get('lineHeight'); } }, getRegion: function (el, x, y) { return Math.floor(x / this.itemWidth); }, getCurrentRegionFields: function () { var currentRegion = this.currentRegion; return { isNull: this.values[currentRegion] === undefined, value: this.values[currentRegion], offset: currentRegion }; }, renderRegion: function (valuenum, highlight) { var values = this.values, options = this.options, min = this.min, max = this.max, range = this.range, interval = this.interval, target = this.target, canvasHeight = this.canvasHeight, lineHeight = this.lineHeight, pheight = canvasHeight - lineHeight, ytop, val, color, x; val = clipval(values[valuenum], min, max); x = valuenum * interval; ytop = Math.round(pheight - pheight * ((val - min) / range)); color = (options.get('thresholdColor') && val < options.get('thresholdValue')) ? options.get('thresholdColor') : options.get('lineColor'); if (highlight) { color = this.calcHighlightColor(color, options); } return target.drawLine(x, ytop, x, ytop + lineHeight, color); } });