763 lines
25 KiB
JavaScript
763 lines
25 KiB
JavaScript
function newAAMastersAAOliviaVolumes() {
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let thisObject = {
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// Main functions and properties.
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initialize: initialize,
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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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draw: draw,
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// Secondary functions and properties.
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onLayerStatusChanged: onLayerStatusChanged
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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 layerStatus = 'off'; // Since the moduleis a layer, it must handle the different possible layer status.
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let plotArea = newPlotArea(); // Needed to be able to plot on the timeline, otherwise not.
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let plotAreaFrame = newPlotArea(); // This chart uses this extra object.
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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 fileCache; // This object will provide the different Market Files at different Time Periods.
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let fileCursorCache; // 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 volumes = []; // Here we keep the volumes to be ploted every time the Draw() function is called by the AAWebPlatform.
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return thisObject;
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function initialize(pExchange, pMarket, pDatetime, pTimePeriod, pLayerStatus, callBackFunction) {
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let cursorCacheInProgress = false;
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let finaleStepsInProgress = false;
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datetime = pDatetime;
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timePeriod = pTimePeriod;
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fileCache = newFileCache();
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fileCache.initialize("AAMasters", "AAOlivia", "Market Volumes", "Market Volumes", pExchange, pMarket, onFileReady);
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function onFileReady() {
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let newMarketFile = fileCache.getFile(ONE_DAY_IN_MILISECONDS);
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if (newMarketFile !== undefined) {
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marketFile = newMarketFile;
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initializeFileCursorCache();
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}
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}
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function initializeFileCursorCache() {
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if (cursorCacheInProgress === false) {
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cursorCacheInProgress = true;
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fileCursorCache = newFileCursorCache();
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fileCursorCache.initialize("AAMasters", "AAOlivia", "Daily Volumes", "Daily Volumes", pExchange, pMarket, pDatetime, pTimePeriod, onFileCursorReady);
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}
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}
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function onFileCursorReady() {
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recalculate();
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let newFileCursor = fileCursorCache.getFileCursor(pTimePeriod);
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if (newFileCursor !== undefined) { // if the file ready is the one we need then it and we dont have it yet, then we will continue here.
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let stringDate = datetime.getUTCFullYear() + '-' + pad(datetime.getUTCMonth() + 1, 2) + '-' + pad(datetime.getUTCDate(), 2);
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let dailyFile = newFileCursor.files.get(stringDate);
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if (dailyFile !== undefined) {
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if (finaleStepsInProgress === false) {
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finaleStepsInProgress = true;
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fileCursor = newFileCursor;
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layerStatus = pLayerStatus;
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recalculateScaleX();
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recalculate();
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recalculateScaleY();
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viewPort.eventHandler.listenToEvent("Zoom Changed", onZoomChanged);
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canvas.eventHandler.listenToEvent("Drag Finished", onDragFinished);
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callBackFunction();
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}
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}
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}
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}
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}
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function getContainer(point) {
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if (layerStatus !== 'on') { return; }
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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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}
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function setTimePeriod(pTimePeriod) {
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timePeriod = pTimePeriod;
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if (timePeriod >= _1_HOUR_IN_MILISECONDS) {
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let newMarketFile = fileCache.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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fileCursorCache.setTimePeriod(pTimePeriod);
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fileCursorCache.setDatetime(datetime);
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let newFileCursor = fileCursorCache.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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if (timePeriod === _1_HOUR_IN_MILISECONDS) {
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fileCursorCache.setTimePeriod(pTimePeriod);
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fileCursorCache.setDatetime(datetime);
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}
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}
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function setDatetime(newDatetime) {
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/* If there is a change in the day, then we take some actions, otherwise, we dont. */
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let currentDate = Math.trunc(datetime.valueOf() / ONE_DAY_IN_MILISECONDS);
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let newDate = Math.trunc(newDatetime.valueOf() / ONE_DAY_IN_MILISECONDS);
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datetime = newDatetime;
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if (currentDate !== newDate) {
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if (timePeriod <= _1_HOUR_IN_MILISECONDS) {
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fileCursorCache.setDatetime(newDatetime);
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}
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}
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}
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function draw() {
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if (layerStatus !== 'on') { return; }
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this.container.frame.draw();
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if (timePeriod < _1_HOUR_IN_MILISECONDS) {
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if (Math.random() * 1000 > 995) {
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recalculateScaleX();
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recalculate();
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recalculateScaleY();
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}
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}
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plotChart();
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}
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function recalculate() {
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if (layerStatus === 'off') { return; }
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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("Volumes Changed", volumes);
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}
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function recalculateUsingDailyFiles() {
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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, plotArea);
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let rightDate = getDateFromPoint(viewPort.visibleArea.topRight, thisObject.container, plotArea);
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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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volumes = [];
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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 volume = {
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amountBuy: 0,
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amountSell: 0,
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begin: undefined,
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end: undefined
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};
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volume.amountBuy = dailyFile[i][0];
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volume.amountSell = dailyFile[i][1];
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volume.begin = dailyFile[i][2];
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volume.end = dailyFile[i][3];
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if (volume.begin >= farLeftDate.valueOf() && volume.end <= farRightDate.valueOf()) {
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volumes.push(volume);
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if (datetime.valueOf() >= volume.begin && datetime.valueOf() <= volume.end) {
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thisObject.container.eventHandler.raiseEvent("Current Candle Changed", thisObject.currentCandle);
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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 volumes. */
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let lowerEnd = leftDate.valueOf();
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let upperEnd = rightDate.valueOf();
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if (volumes.length > 0) {
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if (volumes[0].begin > lowerEnd || volumes[volumes.length - 1].end < upperEnd) {
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setTimeout(recalculate, 2000);
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//console.log("File missing while calculating volumes, scheduling a recalculation in 2 seconds.");
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}
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}
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//console.log("Olivia > recalculateUsingDailyFiles > total volumes generated : " + volumes.length);
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}
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function recalculateUsingMarketFiles() {
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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, plotArea);
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let rightDate = getDateFromPoint(viewPort.visibleArea.topRight, thisObject.container, plotArea);
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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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volumes = [];
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for (let i = 0; i < marketFile.length; i++) {
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let volume = {
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amountBuy: 0,
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amountSell: 0,
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begin: undefined,
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end: undefined
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};
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volume.amountBuy = marketFile[i][0];
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volume.amountSell = marketFile[i][1];
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volume.begin = marketFile[i][2];
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volume.end = marketFile[i][3];
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if (volume.begin >= leftDate.valueOf() && volume.end <= rightDate.valueOf()) {
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volumes.push(volume);
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if (datetime.valueOf() >= volume.begin && datetime.valueOf() <= volume.end) {
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thisObject.container.eventHandler.raiseEvent("Current Volume Changed", thisObject.currentCandle);
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}
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}
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}
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//console.log("Olivia > recalculateUsingMarketFiles > total volumes generated : " + volumes.length);
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}
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function recalculateScaleX() {
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var minValue = {
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x: EARLIEST_DATE.valueOf()
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};
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var maxValue = {
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x: MAX_PLOTABLE_DATE.valueOf()
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};
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plotArea.initializeX(
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minValue,
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maxValue,
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thisObject.container.frame.width
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);
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plotAreaFrame.initializeX(
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minValue,
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maxValue,
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thisObject.container.frame.width
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);
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}
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function recalculateScaleY() {
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var minValue = {
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y: 0
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};
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var maxValue = {
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y: 0
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};
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let timePeriodRatio = ONE_DAY_IN_MILISECONDS / timePeriod;
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maxValue.y = getMaxVolume() / (timePeriodRatio / 10);
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plotArea.initializeY(
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minValue,
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maxValue,
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viewPort.visibleArea.bottomRight.y - viewPort.visibleArea.topLeft.y
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);
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plotAreaFrame.initializeY(
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minValue,
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maxValue,
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thisObject.container.frame.height
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);
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function getMaxVolume() {
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let maxValue = 0;
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for (var i = 0; i < marketFile.length; i++) {
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let currentMax = (marketFile[i][0] + marketFile[i][1]) * 4;
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if (maxValue < currentMax) {
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maxValue = currentMax;
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}
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}
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return maxValue;
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}
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}
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function plotChart() {
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if (volumes.length > 0) {
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/* Now we calculate and plot the volumes */
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let visibleHeight = viewPort.visibleArea.bottomRight.y - viewPort.visibleArea.topLeft.y;
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let frameCorner1 = {
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x: 0,
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y: 0
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};
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let frameCorner2 = {
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x: thisObject.container.frame.width,
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y: thisObject.container.frame.height
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};
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/* Now the transformations. */
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frameCorner1 = transformThisPoint(frameCorner1, thisObject.container.frame.container);
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frameCorner2 = transformThisPoint(frameCorner2, thisObject.container.frame.container);
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let frameHeightInViewPort = frameCorner2.y - frameCorner1.y;
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if (volumes.length > 0) {
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for (var i = 0; i < volumes.length; i++) {
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volume = volumes[i];
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let volumePointA1;
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let volumePointA2;
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let volumePointA3;
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let volumePointA4;
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function calculateBuys(plot, height) {
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volumePointA1 = {
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x: volume.begin + timePeriod / 7 * 2,
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y: 0
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};
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volumePointA2 = {
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x: volume.begin + timePeriod / 7 * 2,
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y: volume.amountBuy
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};
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volumePointA3 = {
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x: volume.begin + timePeriod / 7 * 5,
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y: volume.amountBuy
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};
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volumePointA4 = {
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x: volume.begin + timePeriod / 7 * 5,
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y: 0
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};
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volumePointA1 = plot.inverseTransform(volumePointA1, height);
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volumePointA2 = plot.inverseTransform(volumePointA2, height);
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volumePointA3 = plot.inverseTransform(volumePointA3, height);
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volumePointA4 = plot.inverseTransform(volumePointA4, height);
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volumePointA1 = transformThisPoint(volumePointA1, thisObject.container);
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volumePointA2 = transformThisPoint(volumePointA2, thisObject.container);
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volumePointA3 = transformThisPoint(volumePointA3, thisObject.container);
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volumePointA4 = transformThisPoint(volumePointA4, thisObject.container);
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let baseIncrement = (volumePointA3.x - volumePointA1.x) * WIDHTER_VOLUME_BAR_BASE_FACTOR;
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volumePointA1.x = volumePointA1.x - baseIncrement;
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volumePointA4.x = volumePointA4.x + baseIncrement;
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if (volumePointA4.x < viewPort.visibleArea.bottomLeft.x || volumePointA1.x > viewPort.visibleArea.bottomRight.x) {
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return false;
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}
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return true;
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}
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if (calculateBuys(plotAreaFrame, thisObject.container.frame.height) === false) { continue; } // We try to see if it fits in the visible area.
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if (volumePointA1.y > viewPort.visibleArea.bottomLeft.y && frameHeightInViewPort > visibleHeight * 2 / 3) {
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if (calculateBuys(plotArea, visibleHeight) === false) { continue; } // We snap t to the view port.
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/* Now we set the real value of y. */
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volumePointA1.y = viewPort.visibleArea.bottomRight.y;
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volumePointA2.y = viewPort.visibleArea.bottomRight.y - volume.amountBuy * plotArea.scale.y;
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volumePointA3.y = viewPort.visibleArea.bottomRight.y - volume.amountBuy * plotArea.scale.y;
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volumePointA4.y = viewPort.visibleArea.bottomRight.y;
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}
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let volumePointB1;
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let volumePointB2;
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let volumePointB3;
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let volumePointB4;
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function calculateSells(plot, height) {
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volumePointB1 = {
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x: volume.begin + timePeriod / 7 * 2,
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y: height
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};
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volumePointB2 = {
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x: volume.begin + timePeriod / 7 * 2,
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y: height - volume.amountSell
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};
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volumePointB3 = {
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x: volume.begin + timePeriod / 7 * 5,
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y: height - volume.amountSell
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};
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volumePointB4 = {
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x: volume.begin + timePeriod / 7 * 5,
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y: height
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};
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volumePointB1 = plot.inverseTransform2(volumePointB1, height);
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volumePointB2 = plot.inverseTransform2(volumePointB2, height);
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volumePointB3 = plot.inverseTransform2(volumePointB3, height);
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volumePointB4 = plot.inverseTransform2(volumePointB4, height);
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volumePointB1 = transformThisPoint(volumePointB1, thisObject.container);
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volumePointB2 = transformThisPoint(volumePointB2, thisObject.container);
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volumePointB3 = transformThisPoint(volumePointB3, thisObject.container);
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volumePointB4 = transformThisPoint(volumePointB4, thisObject.container);
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}
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calculateSells(plotAreaFrame, thisObject.container.frame.height); // We try to see if it fits in the visible area.
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if (volumePointB1.y < viewPort.visibleArea.topLeft.y && frameHeightInViewPort > visibleHeight * 2 / 3) {
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calculateSells(plotArea, visibleHeight); // We snap it to the view port.
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/* Now we set the real value of y. */
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volumePointB1.y = viewPort.visibleArea.topLeft.y;
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volumePointB2.y = viewPort.visibleArea.topLeft.y + volume.amountSell * plotArea.scale.y;
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volumePointB3.y = viewPort.visibleArea.topLeft.y + volume.amountSell * plotArea.scale.y;
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volumePointB4.y = viewPort.visibleArea.topLeft.y;
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}
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/* We put a wider base */
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let baseIncrement = (volumePointB3.x - volumePointB1.x) * WIDHTER_VOLUME_BAR_BASE_FACTOR;
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volumePointB1.x = volumePointB1.x - baseIncrement;
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volumePointB4.x = volumePointB4.x + baseIncrement;
|
|
|
|
/* We put a less wider top */
|
|
|
|
let baseDencrement = (volumePointA3.x - volumePointA2.x) * LESS_WIDHTER_VOLUME_BAR_TOP_FACTOR;
|
|
|
|
volumePointA2.x = volumePointA2.x + baseDencrement;
|
|
volumePointA3.x = volumePointA3.x - baseDencrement;
|
|
|
|
volumePointB2.x = volumePointB2.x + baseDencrement;
|
|
volumePointB3.x = volumePointB3.x - baseDencrement;
|
|
|
|
|
|
/* Everything must fit within the visible area */
|
|
|
|
volumePointA1 = viewPort.fitIntoVisibleArea(volumePointA1);
|
|
volumePointA2 = viewPort.fitIntoVisibleArea(volumePointA2);
|
|
volumePointA3 = viewPort.fitIntoVisibleArea(volumePointA3);
|
|
volumePointA4 = viewPort.fitIntoVisibleArea(volumePointA4);
|
|
|
|
volumePointB1 = viewPort.fitIntoVisibleArea(volumePointB1);
|
|
volumePointB2 = viewPort.fitIntoVisibleArea(volumePointB2);
|
|
volumePointB3 = viewPort.fitIntoVisibleArea(volumePointB3);
|
|
volumePointB4 = viewPort.fitIntoVisibleArea(volumePointB4);
|
|
|
|
/* Everything must fit within the Frame. We know that that is equivalent to say that each bar con not be higher than the base of the opposite . */
|
|
|
|
if (volumePointA2.y < volumePointB1.y) {
|
|
|
|
volumePointA2.y = volumePointB1.y;
|
|
volumePointA3.y = volumePointB1.y;
|
|
|
|
}
|
|
|
|
if (volumePointB2.y > volumePointA1.y) {
|
|
|
|
volumePointB2.y = volumePointA1.y;
|
|
volumePointB3.y = volumePointA1.y;
|
|
|
|
}
|
|
|
|
/* Now the drawing of the volume bars*/
|
|
|
|
browserCanvasContext.beginPath();
|
|
|
|
browserCanvasContext.moveTo(volumePointA1.x, volumePointA1.y);
|
|
browserCanvasContext.lineTo(volumePointA2.x, volumePointA2.y);
|
|
browserCanvasContext.lineTo(volumePointA3.x, volumePointA3.y);
|
|
browserCanvasContext.lineTo(volumePointA4.x, volumePointA4.y);
|
|
|
|
browserCanvasContext.closePath();
|
|
|
|
|
|
if (datetime !== undefined) {
|
|
|
|
let dateValue = datetime.valueOf();
|
|
|
|
if (dateValue >= volume.begin && dateValue <= volume.end) {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(255, 233, 31, 0.40)'; // Current bar accroding to time
|
|
|
|
} else {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(64, 217, 26, 0.40)';
|
|
}
|
|
|
|
} else {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(64, 217, 26, 0.40)';
|
|
|
|
}
|
|
|
|
browserCanvasContext.fill();
|
|
browserCanvasContext.strokeStyle = 'rgba(27, 105, 7, 0.40)';
|
|
browserCanvasContext.lineWidth = 1;
|
|
browserCanvasContext.stroke();
|
|
|
|
|
|
browserCanvasContext.beginPath();
|
|
|
|
browserCanvasContext.moveTo(volumePointB1.x, volumePointB1.y);
|
|
browserCanvasContext.lineTo(volumePointB2.x, volumePointB2.y);
|
|
browserCanvasContext.lineTo(volumePointB3.x, volumePointB3.y);
|
|
browserCanvasContext.lineTo(volumePointB4.x, volumePointB4.y);
|
|
|
|
browserCanvasContext.closePath();
|
|
|
|
if (datetime !== undefined) {
|
|
|
|
let dateValue = datetime.valueOf();
|
|
|
|
if (dateValue >= volume.begin && dateValue <= volume.end) {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(255, 233, 31, 0.40)'; // Current candle accroding to time
|
|
|
|
} else {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(219, 18, 18, 0.40)';
|
|
}
|
|
|
|
} else {
|
|
|
|
browserCanvasContext.fillStyle = 'rgba(219, 18, 18, 0.40)';
|
|
|
|
}
|
|
|
|
browserCanvasContext.strokeStyle = 'rgba(130, 9, 9, 0.40)';
|
|
|
|
browserCanvasContext.fill();
|
|
browserCanvasContext.lineWidth = 1;
|
|
browserCanvasContext.stroke();
|
|
|
|
|
|
|
|
if (datetime !== undefined) {
|
|
|
|
let dateValue = datetime.valueOf();
|
|
|
|
if (dateValue >= volume.begin && dateValue <= volume.end) {
|
|
|
|
let buyInfo = {
|
|
baseWidth: volumePointA4.x - volumePointA1.x,
|
|
topWidth: volumePointA3.x - volumePointA2.x,
|
|
height: volumePointA2.y - volumePointA1.y
|
|
};
|
|
|
|
let sellInfo = {
|
|
baseWidth: volumePointB4.x - volumePointB1.x,
|
|
topWidth: volumePointB3.x - volumePointB2.x,
|
|
height: volumePointB2.y - volumePointB1.y
|
|
};
|
|
|
|
let currentVolume = {
|
|
buyInfo: buyInfo,
|
|
sellInfo: sellInfo,
|
|
period: timePeriod,
|
|
innerVolumeBar: volume
|
|
};
|
|
|
|
thisObject.container.eventHandler.raiseEvent("Current Volume Info Changed", currentVolume);
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function onLayerStatusChanged(eventData) {
|
|
|
|
if (eventData.layer === 'Mariam Trades Details') {
|
|
layerStatus = eventData.status;
|
|
}
|
|
|
|
}
|
|
|
|
function onZoomChanged(event) {
|
|
|
|
recalculateScaleX();
|
|
recalculate();
|
|
recalculateScaleY();
|
|
|
|
}
|
|
|
|
function onDragFinished() {
|
|
|
|
recalculateScaleX();
|
|
recalculate();
|
|
recalculateScaleY();
|
|
|
|
}
|
|
}
|
|
|