419 lines
13 KiB
JavaScript
419 lines
13 KiB
JavaScript
function newTimelineChart () {
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const MODULE_NAME = 'Timeline Chart'
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const INFO_LOG = false
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const INTENSIVE_LOG = false
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const ERROR_LOG = true
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const logger = newWebDebugLog()
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logger.fileName = MODULE_NAME
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let timeLineCoordinateSystem
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let timeFrame = INITIAL_TIME_PERIOD
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let datetime = NEW_SESSION_INITIAL_DATE
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let thisObject = {
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container: undefined,
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fitFunction: undefined,
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timeFrameScale: undefined,
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payload: undefined,
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physics: physics,
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setDatetime: setDatetime,
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drawBackground: drawBackground,
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draw: draw,
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getContainer: getContainer,
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initialize: initialize,
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finalize: finalize
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}
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thisObject.fitFunction = canvas.chartSpace.fitIntoVisibleArea
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let initializationReady = false
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let productsPanel
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/* Background */
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let logoBaseAsset
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let logoQuotedAsset
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let logoExchange
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let logoAA
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let canDrawLogoA = false
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let canDrawLogoB = false
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let canDrawLogoExchange = false
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let canDrawLogoAA = false
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let plotterManager
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let exchange
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let market
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let productsPanelHandle
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let onOffsetChangedEventSuscriptionId
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let onZoomChangedEventSuscriptionId
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let onMouseOverEventSuscriptionId
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let onMouseNotOverEventSuscriptionId
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let timeFrameScaleEventSuscriptionId
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let timeFrameScaleMouseOverEventSuscriptionId
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let mouse = {
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position: {
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x: 0,
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y: 0
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}
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}
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setupContainer()
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return thisObject
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function setupContainer () {
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thisObject.container = newContainer()
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thisObject.container.initialize(MODULE_NAME)
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thisObject.container.detectMouseOver = true
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}
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function finalize () {
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if (thisObject.timeFrameScale !== undefined) {
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finalizeTimeFrameScale()
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}
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viewPort.eventHandler.stopListening(onOffsetChangedEventSuscriptionId)
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viewPort.eventHandler.stopListening(onZoomChangedEventSuscriptionId)
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thisObject.container.eventHandler.stopListening(onMouseOverEventSuscriptionId)
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thisObject.container.eventHandler.stopListening(onMouseNotOverEventSuscriptionId)
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plotterManager.finalize()
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plotterManager = undefined
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canvas.panelsSpace.destroyPanel(productsPanelHandle)
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thisObject.container.finalize()
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thisObject.container = undefined
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thisObject.payload = undefined
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mouse = undefined
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}
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function finalizeTimeFrameScale () {
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thisObject.timeFrameScale.container.eventHandler.stopListening(timeFrameScaleEventSuscriptionId)
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thisObject.timeFrameScale.container.eventHandler.stopListening(timeFrameScaleMouseOverEventSuscriptionId)
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thisObject.timeFrameScale.finalize()
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thisObject.timeFrameScale = undefined
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}
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function initialize (pExchange, pMarket, pTimeLineCoordinateSystem, callBackFunction) {
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try {
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/* We load the logow we will need for the background. */
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exchange = pExchange
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market = pMarket
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timeLineCoordinateSystem = pTimeLineCoordinateSystem
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let panelOwner = exchange + ' ' + market.quotedAsset + '/' + market.baseAsset
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productsPanelHandle = canvas.panelsSpace.createNewPanel('Products Panel', undefined, panelOwner)
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let productsPanel = canvas.panelsSpace.getPanel(productsPanelHandle, panelOwner)
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productsPanel.initialize(exchange, market)
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logoA = new Image()
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logoB = new Image()
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logoExchange = new Image()
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logoAA = new Image()
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logoA.onload = onImageALoaded
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function onImageALoaded () {
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canDrawLogoA = true
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}
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logoB.onload = onImageBLoaded
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function onImageBLoaded () {
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canDrawLogoB = true
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}
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logoExchange.onload = onImageExchangeLoaded
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function onImageExchangeLoaded () {
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canDrawLogoExchange = true
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}
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logoAA.onload = onImageAALoaded
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function onImageAALoaded () {
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canDrawLogoAA = true
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}
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logoA.src = window.canvasApp.urlPrefix + 'Images/tether-logo-background.png'
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logoB.src = window.canvasApp.urlPrefix + 'Images/bitcoin-logo-background.png'
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logoExchange.src = window.canvasApp.urlPrefix + 'Images/' + exchange + '-logo-background.png'
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logoAA.src = window.canvasApp.urlPrefix + 'Images/sa-logo-background.png'
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// moveToUserPosition(thisObject.container, timeLineCoordinateSystem, undefined, undefined, undefined, true)
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timeFrame = INITIAL_TIME_PERIOD
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datetime = NEW_SESSION_INITIAL_DATE
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/* Event Subscriptions - we need this events to be fired first here and then in active Plotters. */
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onOffsetChangedEventSuscriptionId = viewPort.eventHandler.listenToEvent('Offset Changed', onOffsetChanged)
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onZoomChangedEventSuscriptionId = viewPort.eventHandler.listenToEvent('Zoom Changed', onZoomChanged)
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/* Initialize the Plotter Manager */
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plotterManager = newPlottersManager()
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plotterManager.container.connectToParent(thisObject.container, true, true, false, true, true, true)
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plotterManager.container.frame.position.x = 0
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plotterManager.container.frame.position.y = 0
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plotterManager.fitFunction = thisObject.fitFunction
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plotterManager.initialize(productsPanel, pExchange, pMarket, onPlotterManagerReady)
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function onPlotterManagerReady (err) {
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if (err.result !== GLOBAL.DEFAULT_OK_RESPONSE.result) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> onPlotterManagerReady -> Plotter Manager Initialization Failed. ') }
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> onPlotterManagerReady -> err= ' + err.stack) }
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callBackFunction(GLOBAL.DEFAULT_FAIL_RESPONSE)
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return
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}
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onMouseOverEventSuscriptionId = thisObject.container.eventHandler.listenToEvent('onMouseOver', onMouseOver)
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function onMouseOver (event) {
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if (thisObject.timeFrameScale !== undefined) {
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thisObject.timeFrameScale.visible = true
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}
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mouse.position.x = event.x
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mouse.position.y = event.y
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saveUserPosition(thisObject.container, timeLineCoordinateSystem, event)
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}
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onMouseNotOverEventSuscriptionId = thisObject.container.eventHandler.listenToEvent('onMouseNotOver', onMouseNotOver)
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function onMouseNotOver (event) {
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if (thisObject.timeFrameScale !== undefined) {
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thisObject.timeFrameScale.visible = false
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}
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}
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initializationReady = true
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callBackFunction(GLOBAL.DEFAULT_OK_RESPONSE)
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return
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> err = ' + err.stack) }
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callBackFunction(GLOBAL.DEFAULT_FAIL_RESPONSE)
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}
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}
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function initializeTimeFrameScale () {
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thisObject.timeFrameScale = newTimeFrameScale()
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thisObject.timeFrameScale.fitFunction = thisObject.fitFunction
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thisObject.timeFrameScale.payload = thisObject.payload
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timeFrameScaleEventSuscriptionId = thisObject.timeFrameScale.container.eventHandler.listenToEvent('Time Frame Changed', function (event) {
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let currentTimeFrame = timeFrame
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timeFrame = event.timeFrame
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if (timeFrame !== currentTimeFrame) {
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plotterManager.setTimeFrame(timeFrame)
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}
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})
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thisObject.timeFrameScale.initialize()
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timeFrameScaleMouseOverEventSuscriptionId = thisObject.timeFrameScale.container.eventHandler.listenToEvent('onMouseOver', timeFrameScaleMouseOver)
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function timeFrameScaleMouseOver (event) {
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mouse.position.x = event.x
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mouse.position.y = event.y
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saveUserPosition(thisObject.container, timeLineCoordinateSystem, event)
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}
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}
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function onZoomChanged (event) {
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if (initializationReady === true) {
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recalculateCurrentDatetime()
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// saveUserPosition(thisObject.container, timeLineCoordinateSystem)
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}
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}
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function setDatetime (pDatetime) {
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/* This function is used when the time is changed through the user interface, but without zooming or panning. */
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/* No matter if the day changed or not, we need to inform all visible Plotters. */
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if (thisObject.container.frame.isInViewPort()) {
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plotterManager.setDatetime(pDatetime)
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plotterManager.positionAtDatetime(pDatetime)
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}
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}
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function onOffsetChanged () {
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if (initializationReady === true) {
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if (thisObject.container.frame.isInViewPort()) {
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recalculateCurrentDatetime()
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// saveUserPosition(thisObject.container, timeLineCoordinateSystem)
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}
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}
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}
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function recalculateCurrentDatetime () {
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/*
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The view port was moved or the view port zoom level was changed and the center of the screen points to a different datetime that we
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must calculate.
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*/
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let center = {
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x: (viewPort.visibleArea.bottomRight.x - viewPort.visibleArea.bottomLeft.x) / 2,
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y: (viewPort.visibleArea.bottomRight.y - viewPort.visibleArea.topRight.y) / 2
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}
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center = unTransformThisPoint(center, thisObject.container)
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center = timeLineCoordinateSystem.unInverseTransform(center, thisObject.container.frame.height)
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let newDate = new Date(0)
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newDate.setUTCSeconds(center.x / 1000)
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datetime = newDate
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plotterManager.setDatetime(datetime)
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}
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function getContainer (point) {
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let container
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if (thisObject.timeFrameScale !== undefined) {
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container = thisObject.timeFrameScale.getContainer(point)
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}
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return container
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}
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function physics () {
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thisObjectPhysics()
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childrenPhysics()
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syncWithDesignerScales()
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}
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function thisObjectPhysics () {
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}
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function syncWithDesignerScales () {
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if (thisObject.payload.node.timeFrameScale === undefined && thisObject.timeFrameScale !== undefined) {
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finalizeTimeFrameScale()
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}
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if (thisObject.payload.node.timeFrameScale !== undefined && thisObject.timeFrameScale === undefined) {
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initializeTimeFrameScale()
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}
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}
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function childrenPhysics () {
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if (thisObject.timeFrameScale !== undefined) {
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thisObject.timeFrameScale.physics()
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}
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/* Container Limits */
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let upCorner = {
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x: 0,
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y: 0
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}
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let bottonCorner = {
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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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upCorner = transformThisPoint(upCorner, thisObject.container)
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bottonCorner = transformThisPoint(bottonCorner, thisObject.container)
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/* thisObject.timeFrameScale Positioning */
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if (thisObject.timeFrameScale !== undefined) {
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timePoint = {
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x: 0,
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y: thisObject.container.frame.height
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}
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timePoint = transformThisPoint(timePoint, thisObject.container.frame.container)
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timePoint.x = mouse.position.x - thisObject.timeFrameScale.container.frame.width / 2
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timePoint = thisObject.container.fitFunction(timePoint, true)
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/* Checking against the container limits. */
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if (timePoint.x < upCorner.x) { timePoint.x = upCorner.x }
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if (timePoint.x + thisObject.timeFrameScale.container.frame.width > bottonCorner.x) { timePoint.x = bottonCorner.x - thisObject.timeFrameScale.container.frame.width }
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thisObject.timeFrameScale.container.frame.position.x = timePoint.x
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thisObject.timeFrameScale.container.frame.position.y = timePoint.y - thisObject.timeFrameScale.container.frame.height
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}
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}
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function tooTiny () {
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if (viewPort.zoomLevel < Math.trunc(-28.25 * 100) / 100) {
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return true
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} else {
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return false
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}
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}
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function tooSmall () {
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if (viewPort.zoomLevel < Math.trunc(-27.25 * 100) / 100) {
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return true
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} else {
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return false
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}
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}
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function drawBackground () {
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if (thisObject.container.frame.isInViewPort()) {
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if (window.CHART_ON_FOCUS === '') {
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window.CHART_ON_FOCUS = exchange + ' ' + market.quotedAsset + '/' + market.baseAsset
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}
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drawChartsBackground()
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plotterManager.draw()
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}
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}
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function draw () {
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if (thisObject.container.frame.isInViewPort()) {
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if (thisObject.timeFrameScale !== undefined) {
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thisObject.timeFrameScale.draw()
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}
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}
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}
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function drawChartsBackground () {
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/* We will paint some transparent background here. */
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let opacity = '0.5'
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let fromPoint = {
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x: 0,
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y: 0
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}
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let toPoint = {
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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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fromPoint = transformThisPoint(fromPoint, thisObject.container)
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toPoint = transformThisPoint(toPoint, thisObject.container)
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fromPoint = canvas.chartSpace.fitIntoVisibleArea(fromPoint)
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toPoint = canvas.chartSpace.fitIntoVisibleArea(toPoint)
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browserCanvasContext.beginPath()
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browserCanvasContext.rect(fromPoint.x, fromPoint.y, toPoint.x - fromPoint.x, toPoint.y - fromPoint.y)
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browserCanvasContext.fillStyle = 'rgba(' + UI_COLOR.WHITE + ', ' + opacity + ')'
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browserCanvasContext.closePath()
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browserCanvasContext.fill()
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}
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}
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