139 lines
3.1 KiB
JavaScript
139 lines
3.1 KiB
JavaScript
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function newPlayStopButton() {
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var thisObject = {
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container: undefined,
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setDatetime: setDatetime,
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draw: draw,
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getContainer: getContainer, // returns the inner most container that holds the point received by parameter.
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initialize: initialize
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};
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var container = newContainer();
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container.initialize();
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thisObject.container = container;
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thisObject.container.frame.width = 50;
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thisObject.container.frame.height = TOP_SPACE_HEIGHT;
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container.frame.position.x = viewPort.visibleArea.topRight.x;
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container.frame.position.y = 0;
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container.isDraggeable = false;
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container.isClickeable = true;
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let play;
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let stop;
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let canDraw = false;
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let showing = "Play";
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let image;
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let datetime;
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let timePeriod;
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return thisObject;
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function initialize() {
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play = new Image();
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play.onload = onImageLoad;
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function onImageLoad() {
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image = play;
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canDraw = true;
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}
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play.src = "Images/Play.png";
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stop = new Image();
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stop.src = "Images/Stop.png";
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thisObject.container.eventHandler.listenToEvent("onMouseClick", onClick);
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viewPort.eventHandler.listenToEvent("Zoom Changed", onZoomChanged);
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timePeriod = INITIAL_TIME_PERIOD;
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}
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function onClick() {
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switch (showing) {
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case "Play": {
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image = stop;
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showing = "Stop";
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let UI_COMMANDS = {
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beginDatetime: datetime,
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endDatetime: undefined,
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timePeriod: timePeriod,
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startMode: window.CURRENT_START_MODE,
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eventHandler: thisObject.container.eventHandler
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};
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cloudVM.onBotPlayPressed(UI_COMMANDS);
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break;
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}
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case "Stop": {
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image = play;
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showing = "Play";
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cloudVM.onBotStopPressed();
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break;
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}
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}
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}
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function onZoomChanged(event) {
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timePeriod = recalculatePeriod(event.newLevel);
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}
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function setDatetime(pDatetime) {
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datetime = new Date(pDatetime);
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}
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function getContainer(point) {
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let container;
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/* First we check if this point is inside this object UI. */
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if (thisObject.container.frame.isThisPointHere(point, true) === 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 draw() {
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thisObject.container.frame.draw(false, false);
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if (canDraw === false) { return; }
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let imageHeight = 272 / 6;
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let imageWidth = 229 / 6;
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let imagePoint = {
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x: thisObject.container.frame.width / 2 - imageWidth / 2,
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y: thisObject.container.frame.height / 2 - imageHeight / 2
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};
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imagePoint = thisObject.container.frame.frameThisPoint(imagePoint);
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browserCanvasContext.drawImage(image, imagePoint.x, imagePoint.y, imageWidth, imageHeight);
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}
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} |