From 0225bdb772d1334cc1aa7ab0fc3678df0864df6b Mon Sep 17 00:00:00 2001 From: AlisaLinUwU Date: Sun, 26 Jan 2025 10:42:28 +0500 Subject: Initialize --- .../static/plugins/sparklines/sparkline.mjs | 179 +++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 src/main/resources/static/plugins/sparklines/sparkline.mjs (limited to 'src/main/resources/static/plugins/sparklines/sparkline.mjs') diff --git a/src/main/resources/static/plugins/sparklines/sparkline.mjs b/src/main/resources/static/plugins/sparklines/sparkline.mjs new file mode 100644 index 0000000..b22f895 --- /dev/null +++ b/src/main/resources/static/plugins/sparklines/sparkline.mjs @@ -0,0 +1,179 @@ +export default class Sparkline { + constructor(element, options = {}) { + this.element = element; + this.options = { ...Sparkline.options, ...options }; + + init: { + this.element.innerHTML = ""; + this.canvas = this.element.firstChild; + this.context = this.canvas.getContext("2d"); + this.ratio = window.devicePixelRatio || 1; + + if (this.options.tooltip) { + this.canvas.style.position = "relative"; + this.canvas.addEventListener('mousemove', e => { + const x = e.offsetX || e.layerX || 0; + const delta = ((this.options.width - this.options.dotRadius * 2) / (this._points.length - 1)); + const index = minmax(0, Math.round((x - this.options.dotRadius) / delta), this._points.length - 1); + + this.canvas.title = this.options.tooltip(this._points[index], index, this._points); + }, false); + } + } + } + + set points(points) { + this.draw(points); + } + + get points() { + return this._points; + } + + draw(points = []) { + this._points = points; + + this.canvas.width = this.options.width * this.ratio; + this.canvas.style.width = `${this.options.width}px`; + + const pxHeight = this.options.height || this.element.offsetHeight; + this.canvas.height = pxHeight * this.ratio; + this.canvas.style.height = `${pxHeight}px`; + + const lineWidth = this.options.lineWidth * this.ratio; + const offsetX = Math.max(this.options.dotRadius * this.ratio, lineWidth / 2); + const offsetY = Math.max(this.options.dotRadius * this.ratio, lineWidth / 2); + const width = this.canvas.width - offsetX * 2; + const height = this.canvas.height - offsetY * 2; + + const minValue = Math.min.apply(Math, points); + const maxValue = Math.max.apply(Math, points); + const bottomValue = this.options.minValue != undefined ? this.options.minValue : Math.min(minValue, this.options.maxMinValue != undefined ? this.options.maxMinValue : minValue); + const topValue = this.options.maxValue != undefined ? this.options.maxValue : Math.max(maxValue, this.options.minMaxValue != undefined ? this.options.minMaxValue : maxValue); + let minX = offsetX; + let maxX = offsetX; + + let x = offsetX; + const y = index => (topValue === bottomValue) + ? offsetY + height / 2 + : (offsetY + height) - ((points[index] - bottomValue) / (topValue - bottomValue)) * height; + const delta = width / (points.length - 1); + + const line = (style, x, y) => { + if (!style) return; + + this.context.save(); + this.context.strokeStyle = style.color || 'black'; + this.context.lineWidth = (style.width || 1) * this.ratio; + this.context.globalAlpha = style.alpha || 1; + this.context.beginPath(); + this.context.moveTo(style.direction != 'right' ? offsetX : x, y); + this.context.lineTo(style.direction != 'left' ? width + offsetX : x, y); + this.context.stroke(); + this.context.restore(); + } + + const dot = (color, lineStyle, x, y) => { + this.context.beginPath(); + this.context.fillStyle = color; + this.context.arc(x, y, this.options.dotRadius * this.ratio, 0, Math.PI * 2, false); + this.context.fill(); + line(lineStyle, x, y); + } + + this.context.save(); + + this.context.strokeStyle = this.options.lineColor; + this.context.fillStyle = this.options.lineColor; + this.context.lineWidth = lineWidth; + this.context.lineCap = 'round'; + this.context.lineJoin = 'round'; + + if (this.options.fillBelow && points.length > 1) { + this.context.save(); + this.context.beginPath(); + this.context.moveTo(x, y(0)); + for (let i = 1; i < points.length; i++) { + x += delta; + + minX = points[i] == minValue ? x : minX; + maxX = points[i] == maxValue ? x : maxX; + + this.context.lineTo(x, y(i)); + } + this.context.lineTo(width + offsetX, height + offsetY + lineWidth / 2); + this.context.lineTo(offsetX, height + offsetY + lineWidth / 2); + this.context.fill(); + if (this.options.fillLighten > 0) { + this.context.fillStyle = 'white'; + this.context.globalAlpha = this.options.fillLighten; + this.context.fill(); + this.context.globalAlpha = 1; + } else if (this.options.fillLighten < 0) { + this.context.fillStyle = 'black'; + this.context.globalAlpha = -this.options.fillLighten; + this.context.fill(); + } + this.context.restore(); + } + + x = offsetX; + this.context.beginPath(); + this.context.moveTo(x, y(0)); + for (let i = 1; i < points.length; i++) { + x += delta; + this.context.lineTo(x, y(i)); + } + this.context.stroke(); + + this.context.restore(); + + line(this.options.bottomLine, 0, offsetY); + line(this.options.topLine, 0, height + offsetY + lineWidth / 2); + + dot(this.options.startColor, this.options.startLine, offsetX + (points.length == 1 ? width / 2 : 0), y(0)); + dot(this.options.endColor, this.options.endLine, offsetX + (points.length == 1 ? width / 2 : width), y(points.length - 1)); + dot(this.options.minColor, this.options.minLine, minX + (points.length == 1 ? width / 2 : 0), y(points.indexOf(minValue))); + dot(this.options.maxColor, this.options.maxLine, maxX + (points.length == 1 ? width / 2 : 0), y(points.indexOf(maxValue))); + } + + static init(element, options) { + return new Sparkline(element, options); + } + + static draw(element, points, options) { + const sparkline = new Sparkline(element, options); + sparkline.draw(points); + return sparkline; + } +} + +Sparkline.options = { + width: 100, + height: null, + lineColor: "black", + lineWidth: 1.5, + startColor: "transparent", + endColor: "black", + maxColor: "transparent", + minColor: "transparent", + minValue: null, + maxValue: null, + minMaxValue: null, + maxMinValue: null, + dotRadius: 2.5, + tooltip: null, + fillBelow: true, + fillLighten: 0.5, + startLine: false, + endLine: false, + minLine: false, + maxLine: false, + bottomLine: false, + topLine: false, + averageLine: false +}; + +function minmax(a, b, c) { + return Math.max(a, Math.min(b, c)); +} -- cgit v1.2.3