549 lines
18 KiB
JavaScript
549 lines
18 KiB
JavaScript
function newPlotter () {
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const MODULE_NAME = 'AAMasters Plotters Bollinger Channels'
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const ERROR_LOG = true
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const INTENSIVE_LOG = false
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const logger = newWebDebugLog()
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logger.fileName = MODULE_NAME
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let thisObject = {
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/* Events declared outside the plotter. */
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onDailyFileLoaded: onDailyFileLoaded,
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// Main functions and properties.
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initialize: initialize,
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finalize: finalize,
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container: undefined,
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getContainer: getContainer,
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setTimePeriod: setTimePeriod,
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setDatetime: setDatetime,
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recalculateScale: recalculateScale,
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draw: draw,
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// Secondary functions and properties.
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currentChannel: undefined
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}
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/* this is part of the module template */
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let container = newContainer() // Do not touch this 3 lines, they are just needed.
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container.initialize()
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thisObject.container = container
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let timeLineCoordinateSystem = newTimeLineCoordinateSystem() // Needed to be able to plot on the timeline, otherwise not.
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let timePeriod // This will hold the current Time Period the user is at.
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let datetime // This will hold the current Datetime the user is at.
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let marketFile // This is the current Market File being plotted.
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let fileCursor // This is the current File Cursor being used to retrieve Daily Files.
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let marketFiles // This object will provide the different Market Files at different Time Periods.
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let dailyFiles // This object will provide the different File Cursors at different Time Periods.
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/* these are module specific variables: */
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let channels = []
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let zoomChangedEventSubscriptionId
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let offsetChangedEventSubscriptionId
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let dragFinishedEventSubscriptionId
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let dimmensionsChangedEventSubscriptionId
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let marketFilesUpdatedEventSubscriptionId
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let dailyFilesUpdatedEventSubscriptionId
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return thisObject
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function finalize () {
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try {
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/* Stop listening to the necesary events. */
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viewPort.eventHandler.stopListening(zoomChangedEventSubscriptionId)
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viewPort.eventHandler.stopListening(offsetChangedEventSubscriptionId)
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canvas.eventHandler.stopListening(dragFinishedEventSubscriptionId)
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thisObject.container.eventHandler.stopListening(dimmensionsChangedEventSubscriptionId)
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marketFiles.eventHandler.stopListening(marketFilesUpdatedEventSubscriptionId)
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dailyFiles.eventHandler.stopListening(dailyFilesUpdatedEventSubscriptionId)
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/* Destroyd References */
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marketFiles = undefined
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dailyFiles = undefined
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datetime = undefined
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timePeriod = undefined
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marketFile = undefined
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fileCursor = undefined
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] finalize -> err = ' + err.stack) }
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}
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}
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function initialize (pStorage, pExchange, pMarket, pDatetime, pTimePeriod, callBackFunction) {
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try {
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/* Store the information received. */
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marketFiles = pStorage.marketFiles[0]
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dailyFiles = pStorage.dailyFiles[0]
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datetime = pDatetime
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timePeriod = pTimePeriod
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/* We need a Market File in order to calculate the Y scale, since this scale depends on actual data. */
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marketFile = marketFiles.getFile(ONE_DAY_IN_MILISECONDS) // This file is the one processed faster.
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recalculateScale()
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/* Now we set the right files according to current Period. */
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marketFile = marketFiles.getFile(pTimePeriod)
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fileCursor = dailyFiles.getFileCursor(pTimePeriod)
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/* Listen to the necesary events. */
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zoomChangedEventSubscriptionId = viewPort.eventHandler.listenToEvent('Zoom Changed', onZoomChanged)
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offsetChangedEventSubscriptionId = viewPort.eventHandler.listenToEvent('Offset Changed', onOffsetChanged)
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dragFinishedEventSubscriptionId = canvas.eventHandler.listenToEvent('Drag Finished', onDragFinished)
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marketFilesUpdatedEventSubscriptionId = marketFiles.eventHandler.listenToEvent('Files Updated', onMarketFilesUpdated)
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dailyFilesUpdatedEventSubscriptionId = dailyFiles.eventHandler.listenToEvent('Files Updated', onDailyFilesUpdated)
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/* Get ready for plotting. */
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recalculate()
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dimmensionsChangedEventSubscriptionId = thisObject.container.eventHandler.listenToEvent('Dimmensions Changed', function () {
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recalculateScale()
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recalculate()
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})
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callBackFunction()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> err = ' + err) }
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callBackFunction(GLOBAL.DEFAULT_FAIL_RESPONSE)
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}
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}
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function onMarketFilesUpdated () {
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try {
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let newMarketFile = marketFiles.getFile(timePeriod)
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if (newMarketFile !== undefined) {
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marketFile = newMarketFile
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recalculate()
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onMarketFilesUpdated -> err = ' + err.stack) }
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}
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}
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function onDailyFilesUpdated () {
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try {
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let newFileCursor = dailyFiles.getFileCursor(timePeriod)
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if (newFileCursor !== undefined) {
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fileCursor = newFileCursor
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recalculate()
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDailyFilesUpdated -> err = ' + err.stack) }
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}
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}
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function getContainer (point) {
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try {
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let container
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/* First we check if this point is inside this space. */
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if (this.container.frame.isThisPointHere(point) === true) {
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return this.container
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} else {
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/* This point does not belong to this space. */
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return undefined
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] getContainer -> err = ' + err) }
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}
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}
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function setTimePeriod (pTimePeriod) {
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try {
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if (timePeriod !== pTimePeriod) {
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timePeriod = pTimePeriod
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if (timePeriod >= _1_HOUR_IN_MILISECONDS) {
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let newMarketFile = marketFiles.getFile(pTimePeriod)
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if (newMarketFile !== undefined) {
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marketFile = newMarketFile
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recalculate()
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}
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} else {
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let newFileCursor = dailyFiles.getFileCursor(pTimePeriod)
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if (newFileCursor !== undefined) {
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fileCursor = newFileCursor
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recalculate()
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}
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}
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] setTimePeriod -> err = ' + err) }
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}
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}
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function setDatetime (pDatetime) {
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datetime = pDatetime
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}
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function onDailyFileLoaded (event) {
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try {
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if (event.currentValue === event.totalValue) {
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/* This happens only when all of the files in the cursor have been loaded. */
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recalculate()
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDailyFileLoaded -> err = ' + err) }
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}
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}
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function draw () {
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try {
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this.container.frame.draw()
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plotChart()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] draw -> err = ' + err) }
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}
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}
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function recalculate () {
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try {
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if (timePeriod >= _1_HOUR_IN_MILISECONDS) {
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recalculateUsingMarketFiles()
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} else {
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recalculateUsingDailyFiles()
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}
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thisObject.container.eventHandler.raiseEvent('CandleStairs Changed', channels)
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] recalculate -> err = ' + err) }
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}
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}
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function recalculateUsingDailyFiles () {
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try {
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if (fileCursor === undefined) { return } // We need to wait
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if (fileCursor.files.size === 0) { return } // We need to wait until there are files in the cursor
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let daysOnSides = getSideDays(timePeriod)
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let leftDate = getDateFromPoint(viewPort.visibleArea.topLeft, thisObject.container, timeLineCoordinateSystem)
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let rightDate = getDateFromPoint(viewPort.visibleArea.topRight, thisObject.container, timeLineCoordinateSystem)
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let dateDiff = rightDate.valueOf() - leftDate.valueOf()
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let farLeftDate = new Date(leftDate.valueOf() - dateDiff * 1.5)
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let farRightDate = new Date(rightDate.valueOf() + dateDiff * 1.5)
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let currentDate = new Date(farLeftDate.valueOf())
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channels = []
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while (currentDate.valueOf() <= farRightDate.valueOf() + ONE_DAY_IN_MILISECONDS) {
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let stringDate = currentDate.getFullYear() + '-' + pad(currentDate.getMonth() + 1, 2) + '-' + pad(currentDate.getDate(), 2)
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let dailyFile = fileCursor.files.get(stringDate)
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if (dailyFile !== undefined) {
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for (let i = 0; i < dailyFile.length; i++) {
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let channel = {
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begin: undefined,
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end: undefined,
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direction: undefined,
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period: 0,
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firstMovingAverage: 0,
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lastMovingAverage: 0,
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firstDeviation: 0,
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lastDeviation: 0
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}
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channel.begin = dailyFile[i][0]
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channel.end = dailyFile[i][1]
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channel.direction = dailyFile[i][2]
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channel.period = dailyFile[i][3]
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channel.firstMovingAverage = dailyFile[i][4]
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channel.lastMovingAverage = dailyFile[i][5]
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channel.firstDeviation = dailyFile[i][6]
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channel.lastDeviation = dailyFile[i][7]
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if (channel.begin >= farLeftDate.valueOf() && channel.end <= farRightDate.valueOf()) {
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channels.push(channel)
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if (datetime.valueOf() >= channel.begin && datetime.valueOf() <= channel.end) {
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thisObject.currentChannel = channel
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thisObject.container.eventHandler.raiseEvent('Current Channel Changed', thisObject.currentChannel)
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}
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}
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}
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}
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currentDate = new Date(currentDate.valueOf() + ONE_DAY_IN_MILISECONDS)
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}
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/* Lests check if all the visible screen is going to be covered by candle-channel. */
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let lowerEnd = leftDate.valueOf()
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let upperEnd = rightDate.valueOf()
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if (channels.length > 0) {
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if (channels[0].begin > lowerEnd || channels[channels.length - 1].end < upperEnd) {
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setTimeout(recalculate, 2000)
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// console.log("File missing while calculating candle-channel, scheduling a recalculation in 2 seconds.");
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}
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] recalculateUsingDailyFiles -> err = ' + err) }
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}
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}
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function recalculateUsingMarketFiles () {
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try {
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if (marketFile === undefined) { return } // Initialization not complete yet.
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let daysOnSides = getSideDays(timePeriod)
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let leftDate = getDateFromPoint(viewPort.visibleArea.topLeft, thisObject.container, timeLineCoordinateSystem)
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let rightDate = getDateFromPoint(viewPort.visibleArea.topRight, thisObject.container, timeLineCoordinateSystem)
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let dateDiff = rightDate.valueOf() - leftDate.valueOf()
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leftDate = new Date(leftDate.valueOf() - dateDiff * 1.5)
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rightDate = new Date(rightDate.valueOf() + dateDiff * 1.5)
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channels = []
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for (let i = 0; i < marketFile.length; i++) {
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let channel = {
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begin: undefined,
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end: undefined,
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direction: undefined,
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period: 0,
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firstMovingAverage: 0,
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lastMovingAverage: 0,
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firstDeviation: 0,
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lastDeviation: 0
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}
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channel.begin = marketFile[i][0]
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channel.end = marketFile[i][1]
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channel.direction = marketFile[i][2]
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channel.period = marketFile[i][3]
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channel.firstMovingAverage = marketFile[i][4]
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channel.lastMovingAverage = marketFile[i][5]
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channel.firstDeviation = marketFile[i][6]
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channel.lastDeviation = marketFile[i][7]
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if (channel.begin >= leftDate.valueOf() && channel.end <= rightDate.valueOf()) {
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channels.push(channel)
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if (datetime.valueOf() >= channel.begin && datetime.valueOf() <= channel.end) {
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thisObject.currentChannel = channel
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thisObject.container.eventHandler.raiseEvent('Current Channel Changed', thisObject.currentChannel)
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}
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}
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] recalculateUsingMarketFiles -> err = ' + err) }
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}
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}
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function recalculateScale () {
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try {
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if (timeLineCoordinateSystem.maxValue > 0) { return } // Already calculated.
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let minValue = {
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x: MIN_PLOTABLE_DATE.valueOf(),
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y: 0
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}
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let maxValue = {
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x: MAX_PLOTABLE_DATE.valueOf(),
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y: nextPorwerOf10(USDT_BTC_HTH) / 4 // TODO: This 4 is temporary
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}
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timeLineCoordinateSystem.initialize(
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minValue,
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maxValue,
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thisObject.container.frame.width,
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thisObject.container.frame.height
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)
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] recalculateScale -> err = ' + err) }
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}
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}
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function plotChart () {
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try {
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let userPosition = getUserPosition()
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let userPositionDate = userPosition.point.x
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/* Clean the pannel at places where there is no channel. */
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let channel = {
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direction: '',
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period: ''
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}
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let currentChannel = {
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innerChannel: channel
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}
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thisObject.container.eventHandler.raiseEvent('Current Channel Changed', currentChannel)
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if (channels.length > 0) {
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for (let i = 0; i < channels.length; i++) {
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channel = channels[i]
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let channelPoint1
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let channelPoint2
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let channelPoint3
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let channelPoint4
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channelPoint1 = {
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x: channel.begin,
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y: channel.firstMovingAverage - channel.firstDeviation
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}
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channelPoint2 = {
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x: channel.end,
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y: channel.lastMovingAverage - channel.lastDeviation
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}
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channelPoint3 = {
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x: channel.end,
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y: channel.lastMovingAverage + channel.lastDeviation
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}
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channelPoint4 = {
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x: channel.begin,
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y: channel.firstMovingAverage + channel.firstDeviation
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}
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channelPoint1 = timeLineCoordinateSystem.transformThisPoint(channelPoint1)
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channelPoint2 = timeLineCoordinateSystem.transformThisPoint(channelPoint2)
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channelPoint3 = timeLineCoordinateSystem.transformThisPoint(channelPoint3)
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channelPoint4 = timeLineCoordinateSystem.transformThisPoint(channelPoint4)
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channelPoint1 = transformThisPoint(channelPoint1, thisObject.container)
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channelPoint2 = transformThisPoint(channelPoint2, thisObject.container)
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channelPoint3 = transformThisPoint(channelPoint3, thisObject.container)
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channelPoint4 = transformThisPoint(channelPoint4, thisObject.container)
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if (channelPoint2.x < viewPort.visibleArea.bottomLeft.x || channelPoint1.x > viewPort.visibleArea.bottomRight.x) {
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continue
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}
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channelPoint1 = viewPort.fitIntoVisibleArea(channelPoint1)
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channelPoint2 = viewPort.fitIntoVisibleArea(channelPoint2)
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channelPoint3 = viewPort.fitIntoVisibleArea(channelPoint3)
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channelPoint4 = viewPort.fitIntoVisibleArea(channelPoint4)
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browserCanvasContext.beginPath()
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browserCanvasContext.moveTo(channelPoint1.x, channelPoint1.y)
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browserCanvasContext.lineTo(channelPoint2.x, channelPoint2.y)
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browserCanvasContext.lineTo(channelPoint3.x, channelPoint3.y)
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browserCanvasContext.lineTo(channelPoint4.x, channelPoint4.y)
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browserCanvasContext.closePath()
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let opacity = '0.25'
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if (channel.direction === 'Side') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.LIGHT + ', ' + opacity + ')' }
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if (channel.direction === 'Up') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.GREEN + ', ' + opacity + ')' }
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if (channel.direction === 'Down') { browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.RUSTED_RED + ', ' + opacity + ')' }
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if (userPositionDate >= channel.begin && userPositionDate <= channel.end) {
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browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.TITANIUM_YELLOW + ', 0.1)' // Current channel accroding to time
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let currentChannel = {
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innerChannel: channel
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}
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thisObject.container.eventHandler.raiseEvent('Current Channel Changed', currentChannel)
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}
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browserCanvasContext.fill()
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browserCanvasContext.beginPath()
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browserCanvasContext.moveTo(channelPoint1.x, channelPoint1.y)
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browserCanvasContext.lineTo(channelPoint2.x, channelPoint2.y)
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browserCanvasContext.moveTo(channelPoint3.x, channelPoint3.y)
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browserCanvasContext.lineTo(channelPoint4.x, channelPoint4.y)
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browserCanvasContext.closePath()
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if (channel.direction === 'Side') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.DARK + ', ' + opacity + ')' }
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if (channel.direction === 'Up') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.PATINATED_TURQUOISE + ', ' + opacity + ')' }
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if (channel.direction === 'Down') { browserCanvasContext.strokeStyle = 'rgba(' + UI_COLOR.RED + ', ' + opacity + ')' }
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browserCanvasContext.lineWidth = 1
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browserCanvasContext.setLineDash([0, 0])
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browserCanvasContext.stroke()
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}
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] plotChart -> err = ' + err) }
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}
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}
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function onZoomChanged (event) {
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try {
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recalculate()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onZoomChanged -> err = ' + err) }
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}
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}
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function onDragFinished () {
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try {
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recalculate()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDragFinished -> err = ' + err) }
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}
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}
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function onOffsetChanged (event) {
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try {
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if (event !== undefined) {
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if (event.recalculate === true) {
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recalculate()
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return
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}
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}
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if (Math.random() * 100 > 95) {
|
|
recalculate()
|
|
};
|
|
} catch (err) {
|
|
if (ERROR_LOG === true) { logger.write('[ERROR] onOffsetChanged -> err = ' + err) }
|
|
}
|
|
}
|
|
}
|
|
|