946 lines
25 KiB
JavaScript
946 lines
25 KiB
JavaScript
import { Cycle, Colors, Dates, isEmpty } from '../utils.js'
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import { Capabilities } from '../capabilities.js'
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import { BitmapLabeledGraphics, FontInfo } from './labeledgraphics.js'
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export class Ticks {
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get reservedPrefixes() {
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return ['decade', 'year', 'month', 'day', 'hour', 'minute', 'second']
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}
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static get largeTickSize() {
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return 4.2
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}
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get minWidth() {
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return 10
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}
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format(available) {
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return { year: '2-digit', timeZone: 'UTC' }
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}
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get minLabelWidth() {
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return 44
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}
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get formatKey() {
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return this.key
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}
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dateKey(date) {
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return this.key + date.getFullYear()
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}
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*iter(start, end) {
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let date = this.iterStart(start)
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while (date <= end) {
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yield date
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date = this.next(date)
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}
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yield date
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}
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*iterRanges(range) {
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for (let date of this.iter(range.start, range.end)) {
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let next = this.next(date)
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yield { start: date, end: next }
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}
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}
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selectedRange(timeline, info) {
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let first = null
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let last = null
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let visibleFirst = null
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let visibleLast = null
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let units = 0
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for (let { start, end } of this.iterRanges(info)) {
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if (timeline.visibleRange(start, end)) {
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if (first == null) {
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first = start
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}
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last = end
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}
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if (timeline.visibleDate(start) && timeline.visibleDate(end)) {
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units += 1
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if (visibleFirst == null) {
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visibleFirst = start
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}
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visibleLast = end
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}
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}
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if (first == null)
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return info
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return { start: first, end: last, visibleStart: visibleFirst, visibleEnd: visibleLast, units: units }
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}
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drawTick(timeline, x, y, date) {
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let visible = date > timeline.start && date < timeline.end
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if (!visible)
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return false
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timeline.drawTick(x)
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return true
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}
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toLocaleString(date, format) {
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return date.toLocaleDateString('de', format)
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}
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draw(timeline, range, width, height, available, format, nextFormat, level, extraTicks=false) {
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let first = null
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let last = null
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let keyedFormat = (format) ? format[this.formatKey] : null
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let keyedNextFormat = (nextFormat) ? nextFormat[this.formatKey] : null
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let redundant = (nextFormat) ? this.formatKey in nextFormat : false
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let fullyRedundant = keyedFormat != null && keyedFormat == keyedNextFormat
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let y = timeline.getY()
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for (let { start, end } of this.iterRanges(range)) {
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let x = timeline.toX(start)
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let xx = x
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let yy = y + timeline.tickLabelOffset(-1)
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if (this.drawTick(timeline, x, y, start) && format) {
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let key = this.dateKey(start)
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let text = this.toLocaleString(start, format)
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let align = 'center'
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if (nextFormat) {
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yy = y + timeline.tickLabelOffset(-1, 1)
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align = 'left'
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timeline.drawTick(x, Ticks.largeTickSize)
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let nextX = timeline.toX(end) - 100
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if (x < 0 && nextX > -100 && !redundant) {
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xx = Math.min(4, nextX)
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}
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else {
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xx -= 2
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}
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}
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else if (level > 0) {
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xx = x + available / 2
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}
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if (!fullyRedundant) {
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timeline.ensureLabel(key, text,
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{ x: xx, y: yy, align },
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FontInfo.small)
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}
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if (extraTicks)
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timeline.drawTick(x, -level)
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}
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if (timeline.visibleRange(start, end)) {
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if (first == null)
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first = start
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last = end
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}
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}
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if (first == null)
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return null
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return { start: first, end: last }
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}
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drawExtra(timeline, range, size) {
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for (let { start } of this.iterRanges(range)) {
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if (timeline.visibleDate(start)) {
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let x = timeline.toX(start)
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timeline.drawTick(x, -size)
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}
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}
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}
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}
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export class DecadeTicks extends Ticks {
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get milliseconds() {
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return 10 * 365 * 24 * 60 * 60 * 1000
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}
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format(available) {
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return { year: 'numeric', timeZone: 'UTC' }
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}
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selection(timeline, dates, selected) {
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return dates
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}
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get key() {
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return 'decade'
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}
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get formatKey() {
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return 'year'
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}
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iterStart(start) {
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let modulo = start.getFullYear() % 10
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let year = start.getFullYear() - modulo
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return Dates.create(year, 0, 1)
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}
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next(decade) {
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return Dates.nextYear(decade, 10)
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}
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}
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export class YearTicks extends Ticks {
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get milliseconds() {
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return 365 * 24 * 60 * 60 * 1000
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}
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format(available) {
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if (available < 44)
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return { year: '2-digit', timeZone: 'UTC' }
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return { year: 'numeric', timeZone: 'UTC' }
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}
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get minLabelWidth() {
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return 22
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}
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get key() {
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return 'year'
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}
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iterStart(start) {
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return Dates.create(start.getFullYear(), 0, 1)
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}
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next(year) {
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return Dates.nextYear(year)
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}
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}
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export class MonthTicks extends Ticks {
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get milliseconds() {
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return (365 / 12) * 24 * 60 * 60 * 1000
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}
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format(available) {
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let format = { month: 'narrow', timeZone: 'UTC' }
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if (available > 44)
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format.month = 'short'
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if (available > 66)
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format.year = '2-digit'
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if (available > 100) {
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format.month = 'long'
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format.year = 'numeric'
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}
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return format
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}
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get minLabelWidth() {
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return 32
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}
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get key() {
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return 'month'
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}
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dateKey(date) {
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return this.key + date.getFullYear() + date.getMonth()
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}
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iterStart(start) {
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return Dates.create(start.getFullYear(), start.getMonth(), 1)
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}
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next(month) {
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return Dates.nextMonth(month)
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}
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}
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export class DayTicks extends Ticks {
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get milliseconds() {
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return 24 * 60 * 60 * 1000
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}
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format(available) {
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let format = { day: 'numeric', timeZone: 'UTC' }
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if (available > 44)
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format.month = 'short'
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if (available > 100) {
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format.month = 'long'
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format.year = '2-digit'
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}
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if (available > 150) {
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format.weekday = 'short'
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}
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if (available > 200) {
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format.year = 'numeric'
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format.weekday = 'long'
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}
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return format
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}
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get key() {
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return 'day'
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}
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dateKey(date) {
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return this.key + date.getFullYear() + date.getMonth() + date.getDate()
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}
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iterStart(start) {
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return Dates.create(start.getFullYear(), start.getMonth(), start.getDate())
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}
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next(date) {
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return Dates.nextDay(date)
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}
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}
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export class HourTicks extends Ticks {
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get milliseconds() {
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return 60 * 60 * 1000
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}
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format(available) {
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let format = {}
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if (available > 44) {
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format.hour = '2-digit'
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}
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if (available > 100) {
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format.day = '2-digit'
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format.month = '2-digit'
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format.year = '2-digit'
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}
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if (available > 150) {
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format.weekday = 'short'
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format.month = 'short'
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}
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if (available > 200) {
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format.day = 'numeric'
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format.year = 'numeric'
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format.month = 'long'
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format.weekday = 'long'
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}
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return format
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}
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get key() {
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return 'hour'
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}
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dateKey(date) {
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return this.key + date.getFullYear()
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+ date.getMonth()
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+ date.getDate()
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+ date.getHours()
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}
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iterStart(start) {
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return Dates.create(start.getFullYear(),
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start.getMonth(),
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start.getDate(),
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start.getHours())
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}
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next(date) {
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return Dates.nextHour(date)
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}
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toLocaleString(date, format) {
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return date.toLocaleTimeString('de', format)
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}
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}
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export class MinuteTicks extends Ticks {
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get milliseconds() {
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return 60 * 1000
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}
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format(available) {
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let format = { minute: 'numeric', timeZone: 'UTC' }
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if (available > 44) {
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format.hour = 'numeric'
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format.minute = 'numeric'
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}
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if (available > 100) {
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format.month = 'short'
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format.year = '2-digit'
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}
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if (available > 150) {
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format.weekday = 'short'
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}
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if (available > 200) {
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format.year = 'numeric'
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format.weekday = 'long'
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}
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return format
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}
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get key() {
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return 'minute'
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}
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dateKey(date) {
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return this.key + date.getFullYear()
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+ date.getMonth()
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+ date.getDate()
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+ date.getHours()
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+ date.getMinutes()
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}
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iterStart(start) {
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return Dates.create(start.getFullYear(),
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start.getMonth(),
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start.getDate(),
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start.getHours(),
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start.getMinutes())
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}
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next(date) {
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return Dates.nextMinute(date)
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}
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toLocaleString(date, format) {
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return date.toLocaleTimeString('de', format)
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}
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}
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export class TimeTicks {
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constructor(...ticks) {
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this.ticks = ticks
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}
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selectedRange(timeline) {
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let info = { start: timeline.start, end: timeline.end, units: 0 }
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for (let ticks of this.ticks) {
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info = ticks.selectedRange(timeline, info)
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if (info.units > 1) {
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timeline.selection = [info.visibleStart, info.visibleEnd]
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return
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}
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}
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timeline.selection = [info.start, info.end]
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}
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draw(timeline, width, height) {
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let range = timeline
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let start = timeline.toX(range.start)
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let end = timeline.toX(range.end)
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let size = end - start
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let duration = timeline.end - timeline.start
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let formats = new Map()
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let nextFormats = new Map()
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let availables = new Map()
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let previous = null
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let visible = []
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for (let ticks of this.ticks) {
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let amount = ticks.milliseconds / duration
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let available = amount * size
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availables.set(ticks, available)
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if (available < ticks.minWidth)
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break
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formats.set(ticks, (available < ticks.minLabelWidth) ? null : ticks.format(available))
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nextFormats.set(previous, formats.get(ticks))
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previous = ticks
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visible.push(ticks)
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}
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let level = 0
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let ranges = []
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for (let ticks of visible) {
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if (range == null)
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continue
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range = ticks.draw(timeline, range, width, height,
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availables.get(ticks),
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formats.get(ticks),
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nextFormats.get(ticks), level)
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if (range) {
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ranges.push({ticks, range})
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}
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level += 1
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}
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let extraLevel = ranges.length - 1
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let extraStart = extraLevel
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for(let {ticks, range} of ranges) {
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ticks.drawExtra(timeline, range, extraLevel)
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extraLevel -= 1
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if (extraLevel <= 0) {
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continue
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}
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}
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timeline.drawTick(start, Ticks.largeTickSize)
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timeline.drawTick(start, -extraStart)
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timeline.drawTick(end, Ticks.largeTickSize)
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timeline.drawTick(end, -extraStart)
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}
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}
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export class ColorRanges {
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constructor(label, color, ranges) {
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this.label = label
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this.color = color
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this.ranges = ranges
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}
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draw(timeline, width, height, size = 12) {
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let minimum = 1 / Capabilities.devicePixelRatio
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let h2 = size
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timeline.lineStyle(size, this.color)
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for (let range of this.ranges) {
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if (range.to === null) {
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range.to = Dates.nextDay(range.from)
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}
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let start = timeline.toX(range.from)
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let end = timeline.toX(range.to)
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if (end < start + minimum) {
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end = start + minimum
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}
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timeline.moveTo(start, h2)
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timeline.lineTo(end, h2)
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}
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}
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}
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export default class Timeline extends BitmapLabeledGraphics {
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constructor(width, height, { ticks = null,
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baseLine = 0.5, showRange = true, throwDamping = 0.95 } = {}) {
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super()
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this.wantedWidth = width
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this.wantedHeight = height
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this.extraLeft = 0
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this.extraRight = 0
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this.inset = 5
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this.showRange = showRange
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this.baseLine = baseLine
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this.tickHeight = 4
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this.zoom = 1
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this.minZoom = 1
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this.maxZoom = 12000
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this.scroll = 0
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this.deltas = []
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this.labelDates = []
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this.colorRanges = []
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this.rangeColors = new Cycle(Colors.eminence,
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Colors.steelblue,
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Colors.ochre,
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Colors.turquoise)
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this.callbacks = []
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this.onTapCallbacks = []
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this.onDoubleTapCallbacks = []
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this.onLongPressCallbacks = []
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this.progress = null
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this.start = null
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this.end = null
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this.selection = null
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this.autoScroll = false
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this.direction = -1
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this.throwDamping = throwDamping
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this.timeticks = ticks || new TimeTicks(new DecadeTicks(),
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new YearTicks(),
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new MonthTicks(),
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new DayTicks())
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this.labelPrefix = '__'
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}
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updateSelection() {
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if (this.visibleDate(this.start) && this.visibleDate(this.end)) {
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this.selection = [this.start, this.end]
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}
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else {
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this.timeticks.selectedRange(this)
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}
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return this.selection
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}
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addCallback(callback) {
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this.callbacks.push(callback)
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}
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addTabCallback(callback) {
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this.onTapCallbacks.push(callback)
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}
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addDoubleTapCallback(callback) {
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this.onDoubleTapCallbacks.push(callback)
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}
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addLongPressCallback(callback) {
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this.onLongPressCallbacks.push(callback)
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}
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addLabels(labels) {
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this.labelDates = labels
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}
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range(start, end) {
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this.start = start
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this.end = end
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}
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draw(width, height) {
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this.wantedWidth = width
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this.wantedHeight = height
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this.redraw()
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}
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updateColorRanges(w, h) {
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let xx = w - this.inset
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let size = FontInfo.small.fontSize
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let yy = h - size
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for (let i = this.colorRanges.length - 1; i >= 0; i--) {
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let cr = this.colorRanges[i]
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let label = cr.label
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cr.draw(this, w, h)
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let current = this.ensureLabel('colorRange:' + label, label,
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{ x: xx, y: yy, align: 'right' }, FontInfo.small)
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let r = current.getBounds()
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xx -= r.width + 16
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this.lineStyle(size, cr.color)
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this.moveTo(xx, yy)
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this.lineTo(xx + size, yy)
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xx -= size + 4
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}
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}
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drawSelectedRamge(selected) {
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|
this.lineStyle(2, app.theme.primaryColor)
|
|
let start = this.toX(selected[0])
|
|
let end = this.toX(selected[1])
|
|
this.moveTo(start, 0)
|
|
this.lineTo(end, 0)
|
|
this.drawTick(start, -1.5, 0)
|
|
this.drawTick(end, -1.5, 0)
|
|
}
|
|
|
|
redraw() {
|
|
this.clear()
|
|
let h = this.wantedHeight
|
|
let w = this.wantedWidth
|
|
let y = this.getY()
|
|
this.prepareLabels()
|
|
this.updateColorRanges(w, h)
|
|
|
|
this.lineStyle(2, 0xFFFFFF)
|
|
if (this.start != null && this.end != null) {
|
|
this.moveTo(this.toX(this.start), y)
|
|
this.lineTo(this.toX(this.end), y)
|
|
this.updateTicksAndLabels(w, h)
|
|
this.updateSelection()
|
|
let selected = this.selection
|
|
if (selected[0] != this.start && selected[1] != this.end) {
|
|
if (this.showRange)
|
|
this.drawSelectedRamge(selected)
|
|
}
|
|
for (let callback of this.callbacks) {
|
|
callback(this.scroll, this.zoom, this.selection)
|
|
}
|
|
}
|
|
else {
|
|
this.moveTo(this.inset, y)
|
|
this.lineTo(w - this.inset, y)
|
|
}
|
|
|
|
if (this.progress != null && this.progress < 1) {
|
|
this.lineStyle(2, 0xCCCCFF)
|
|
this.moveTo(this.inset, y)
|
|
this.lineTo((w - this.inset) * this.progress, y)
|
|
}
|
|
}
|
|
|
|
totalWidth(bounded = false) {
|
|
let w = this.wantedWidth - (2 * this.inset)
|
|
return w * this.validZoom(this.zoom, bounded)
|
|
}
|
|
|
|
validZoom(zoom, bounded = true) {
|
|
let overshoot = (bounded) ? 1.0 : 2.0
|
|
zoom = Math.max(zoom, this.minZoom / overshoot)
|
|
zoom = Math.min(zoom, this.maxZoom * overshoot)
|
|
return zoom
|
|
}
|
|
|
|
getY() {
|
|
return this.wantedHeight * this.baseLine
|
|
}
|
|
|
|
toX(date) {
|
|
let total = this.end - this.start
|
|
let offset = this.inset + this.scroll
|
|
let width = this.totalWidth()
|
|
let delta = date - this.start
|
|
let ratio = delta / total
|
|
return offset + ratio * width
|
|
}
|
|
|
|
fromX(value) {
|
|
let total = this.end - this.start
|
|
let offset = this.inset + this.scroll
|
|
let width = this.totalWidth()
|
|
let ratio = (value - offset) / width
|
|
let time = this.start.getTime() + total * ratio
|
|
let date = new Date(time)
|
|
return date
|
|
}
|
|
|
|
drawTick(x, direction = 1, y = null) {
|
|
if (y == null) {
|
|
y = this.getY()
|
|
}
|
|
this.moveTo(x, y)
|
|
this.lineTo(x, y - (this.tickHeight * direction * this.direction))
|
|
}
|
|
|
|
prepareLabels() {
|
|
for (let key of this.labels.keys()) {
|
|
if (!key.startsWith(this.labelPrefix))
|
|
this.labels.get(key).visible = false
|
|
}
|
|
}
|
|
|
|
updateTicksAndLabels(width, height) {
|
|
this.drawTick(this.toX(this.start))
|
|
this.drawTick(this.toX(this.end))
|
|
this.timeticks.draw(this, width, height)
|
|
this.updateLabels(width, height)
|
|
}
|
|
|
|
visibleDate(date, offset = 0) {
|
|
if (date >= this.start && date <= this.end) {
|
|
let x = this.toX(date) + offset
|
|
return (x > 0 && x < this.wantedWidth)
|
|
}
|
|
return false
|
|
}
|
|
|
|
visibleRange(start, end) {
|
|
let x = this.toX(start)
|
|
if (x > this.wantedWidth)
|
|
return false
|
|
x = this.toX(end)
|
|
if (x < 0)
|
|
return false
|
|
return true
|
|
}
|
|
|
|
tickLabelOffset(direction = 1, level = 0) {
|
|
let fs = FontInfo.small.fontSize
|
|
let dh = fs + (level * (fs + 2))
|
|
return this.direction * direction * dh
|
|
}
|
|
|
|
updateLabels(width, height) {
|
|
let h2 = height / 2
|
|
if (this.labelDates) {
|
|
let last = null
|
|
let y = h2 + this.tickLabelOffset()
|
|
for (let i = this.labelDates.length - 1; i >= 0; i--) {
|
|
let [label, date] = this.labelDates[i]
|
|
let align = 'center' // (last == null) ? 'right' : 'left'
|
|
let x = this.toX(date)
|
|
let current = this.ensureLabel(this.labelPrefix + label, label,
|
|
{
|
|
x: x, y: y,
|
|
align
|
|
},
|
|
FontInfo.small)
|
|
let r = current.getBounds()
|
|
current.visible = !(last != null && r.x + r.width > last.x)
|
|
if (current.visible) {
|
|
this.drawTick(x, -1)
|
|
last = r
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
let start = this.start.toLocaleDateString('de', { year: 'numeric', month: 'numeric', day: 'numeric' })
|
|
let end = this.end.toLocaleDateString('de', { year: 'numeric', month: 'numeric', day: 'numeric' })
|
|
this.ensureLabel(this.labelPrefix + 'start', start, { x: this.toX(this.start), y: h2 })
|
|
this.ensureLabel(this.labelPrefix + 'end', end, { x: this.toX(this.end), y: h2, align: 'right' })
|
|
}
|
|
}
|
|
|
|
onZoom(zoom, anchor) {
|
|
let date = this.fromX(anchor.x)
|
|
let newZoom = this.validZoom(this.zoom * zoom, false)
|
|
this.zoom = newZoom
|
|
let newX = this.toX(date)
|
|
this.scroll += anchor.x - newX
|
|
}
|
|
|
|
onStart(event, interaction) {
|
|
this.killTweens()
|
|
this.deltas = []
|
|
this.validScroll()
|
|
if (typeof ThrowPropsPlugin != "undefined") {
|
|
ThrowPropsPlugin.track(this, 'delta')
|
|
}
|
|
}
|
|
|
|
onMove(event, interaction) {
|
|
let delta = interaction.delta()
|
|
this.scroll += delta.x
|
|
while (this.deltas.length > 10) {
|
|
this.deltas.pop(0)
|
|
}
|
|
this.deltas.push(delta.x)
|
|
if (interaction.current.size > 1) {
|
|
this.onZoom(delta.zoom, delta.about)
|
|
}
|
|
this.redraw()
|
|
}
|
|
|
|
onEnd(event, interaction) {
|
|
|
|
if (typeof ThrowPropsPlugin != "undefined") {
|
|
let vel = ThrowPropsPlugin.getVelocity(this, 'delta')
|
|
ThrowPropsPlugin.untrack(this)
|
|
}
|
|
|
|
this.killTweens()
|
|
this.redraw()
|
|
let delta = 0
|
|
for (let d of this.deltas) {
|
|
delta += d
|
|
}
|
|
if (this.deltas.length > 0) {
|
|
delta /= this.deltas.length
|
|
}
|
|
this.autoScroll = true
|
|
let anchor = interaction.current.mean()
|
|
this.keepInBounds(delta, anchor)
|
|
|
|
for(let key of interaction.ended.keys()) {
|
|
if (interaction.isDoubleTap(key)) {
|
|
this.onDoubleTap(event, interaction, key)
|
|
}
|
|
else if (interaction.isTap(key)) {
|
|
this.onTap(event, interaction, key)
|
|
}
|
|
else if (interaction.isLongPress(key)) {
|
|
this.onLongPress(event, interaction, key)
|
|
}
|
|
}
|
|
}
|
|
|
|
onLongPress(event, interaction, key) {
|
|
for(let callback of this.onLongPressCallbacks) {
|
|
callback(event, interaction, key)
|
|
}
|
|
}
|
|
|
|
onTap(event, interaction, key) {
|
|
for(let callback of this.onTapCallbacks) {
|
|
callback(event, interaction, key)
|
|
}
|
|
}
|
|
|
|
onDoubleTap(event, interaction, key) {
|
|
for(let callback of this.onDoubleTapCallbacks) {
|
|
callback(event, interaction, key)
|
|
}
|
|
}
|
|
|
|
_scrollMinimum(bounded) {
|
|
let total = this.totalWidth(bounded)
|
|
return -total + this.wantedWidth - 2 * this.inset
|
|
}
|
|
|
|
_scrollMaximum(bounded) {
|
|
let total = this.totalWidth(bounded)
|
|
let limit = this.wantedWidth
|
|
if (total > limit)
|
|
return 0
|
|
let w = limit - 2 * this.inset
|
|
return (w - total) / 2
|
|
}
|
|
|
|
scrollMinimum(bounded) {
|
|
return this._scrollMinimum(bounded) - this.extraRight
|
|
}
|
|
|
|
scrollMaximum(bounded) {
|
|
return this._scrollMaximum(bounded) + this.extraLeft
|
|
}
|
|
|
|
killTweens() {
|
|
TweenLite.killTweensOf(this)
|
|
this.autoScroll = false
|
|
}
|
|
|
|
|
|
validScroll(bounded = true) {
|
|
let minimum = this.scrollMinimum(bounded)
|
|
let maximum = this.scrollMaximum(bounded)
|
|
if (this.scroll < minimum) {
|
|
this.scroll = minimum
|
|
}
|
|
if (this.scroll > maximum) {
|
|
this.scroll = maximum
|
|
}
|
|
}
|
|
|
|
keepInBounds(delta, anchor) {
|
|
let bounded = true
|
|
let minimum = this.scrollMinimum(bounded)
|
|
let maximum = this.scrollMaximum(bounded)
|
|
let tweens = {}
|
|
if (this.zoom > this.maxZoom) {
|
|
tweens.zoom = this.maxZoom
|
|
let date = this.fromX(anchor.x)
|
|
let oldZoom = this.zoom
|
|
this.zoom = this.maxZoom
|
|
let newX = this.toX(date)
|
|
tweens.scroll = this.scroll + anchor.x - newX
|
|
this.zoom = oldZoom
|
|
}
|
|
else {
|
|
if (this.zoom < this.minZoom) {
|
|
tweens.zoom = this.minZoom
|
|
}
|
|
if (this.scroll > maximum) {
|
|
tweens.scroll = maximum
|
|
}
|
|
if (this.scroll < minimum) {
|
|
tweens.scroll = minimum
|
|
}
|
|
}
|
|
if (!isEmpty(tweens)) {
|
|
tweens.onUpdate = () => { this.redraw() }
|
|
TweenLite.to(this, 0.5, tweens).delay(0.1)
|
|
return
|
|
}
|
|
this.scroll += delta
|
|
delta *= this.throwDamping
|
|
this.redraw()
|
|
if (Math.abs(delta) > 1 && this.autoScroll) {
|
|
setTimeout(() => this.keepInBounds(delta, anchor), 1000 / 100)
|
|
}
|
|
}
|
|
|
|
onMouseWheel(event) {
|
|
this.killTweens()
|
|
let direction = event.detail < 0 || event.wheelDelta > 0
|
|
let anchor = { x: event.clientX, y: event.clientY }
|
|
const zoomFactor = 1.5
|
|
this.onZoom((direction) ? zoomFactor : 1 / zoomFactor, anchor)
|
|
this.redraw()
|
|
this.keepInBounds(0, anchor)
|
|
}
|
|
|
|
showRanges(ranges, label = "Untitled", color = null) {
|
|
for (let cr of this.colorRanges) {
|
|
if (cr.label == label)
|
|
return
|
|
}
|
|
while (this.colorRanges.length >= this.rangeColors.length) {
|
|
this.colorRanges.shift()
|
|
}
|
|
this.colorRanges.push(new ColorRanges(label, color, ranges))
|
|
this.redraw()
|
|
}
|
|
}
|
|
|