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361 lines
9.4 KiB
361 lines
9.4 KiB
1 year ago
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var c3ext = {}
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c3ext.generate = function(options) {
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if (options.zoom2 != null) {
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zoom2_reducers = options.zoom2.reducers || {}
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zoom2_enabled = options.zoom2.enabled
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_zoom2_factor = options.zoom2.factor || 1
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_zoom2_maxItems = options.zoom2.maxItems
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}
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if (!zoom2_enabled) {
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return c3.generate(options)
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}
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var originalData = Q.copy(options.data)
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var zoom2_reducers
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var zoom2_enabled
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var _zoom2_maxItems
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if (_zoom2_maxItems == null) {
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var el = d3.select(options.bindto).node()
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if (el != null) {
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var availWidth = el.clientWidth
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var pointSize = 20
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_zoom2_maxItems = Math.ceil(availWidth / pointSize)
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}
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if (_zoom2_maxItems == null || _zoom2_maxItems < 10) {
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_zoom2_maxItems = 10
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}
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}
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function onZoomChanged(e) {
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refresh()
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}
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var zoom2 = c3ext.ZoomBehavior({
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changed: onZoomChanged,
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bindto: options.bindto
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})
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zoom2.enhance = function() {
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_zoom2_maxItems *= 2
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var totalItems = zoom2.getZoom().totalItems
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if (_zoom2_maxItems > totalItems) _zoom2_maxItems = totalItems
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refresh()
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}
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zoom2.dehance = function() {
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_zoom2_maxItems = Math.ceil(_zoom2_maxItems / 2) + 1
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refresh()
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}
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zoom2.maxItems = function() {
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return _zoom2_maxItems
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}
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function zoomAndReduceData(list, zoomRange, func, maxItems) {
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//var maxItems = 10;//Math.ceil(10 * zoomFactor);
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var list2 = list.slice(zoomRange[0], zoomRange[1])
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var chunkSize = 1
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var list3 = list2
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if (list3.length > maxItems) {
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var chunkSize = Math.ceil(list2.length / maxItems)
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list3 = list3.splitIntoChunksOf(chunkSize).map(func)
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}
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//console.log("x" + getCurrentZoomLevel() + ", maxItems=" + maxItems + " chunkSize=" + chunkSize + " totalBefore=" + list2.length + ", totalAfter=" + list3.length);
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return list3
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}
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function first(t) {
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return t[0]
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}
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var getDataForZoom = function(data) {
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if (data.columns == null || data.columns.length == 0) return
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var zoomInfo = zoom2.getZoom()
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if (zoomInfo.totalItems != data.columns[0].length - 1) {
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zoom2.setOptions({ totalItems: data.columns[0].length - 1 })
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zoomInfo = zoom2.getZoom()
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}
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data.columns = originalData.columns.map(function(column) {
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var name = column[0]
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var reducer = zoom2_reducers[name] || first //by default take the first
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var values = column.slice(1)
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var newValues = zoomAndReduceData(
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values,
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zoomInfo.currentZoom,
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reducer,
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_zoom2_maxItems
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)
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return [name].concat(newValues)
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})
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return data
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}
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getDataForZoom(options.data)
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var chart = c3.generate(options)
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var _chart_load_org = chart.load.bind(chart)
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chart.zoom2 = zoom2
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chart.load = function(data) {
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if (data.unload) {
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unload(data.unload)
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delete data.unload
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}
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Q.copy(data, originalData)
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refresh()
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}
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chart.unload = function(names) {
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unload(names)
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refresh()
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}
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function unload(names) {
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originalData.columns.removeAll(function(t) {
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names.contains(t)
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})
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}
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function refresh() {
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var data = Q.copy(originalData)
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getDataForZoom(data)
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_chart_load_org(data)
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}
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return chart
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}
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c3ext.ZoomBehavior = function(options) {
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var zoom = { __type: 'ZoomBehavior' }
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var _zoom2_factor
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var _left
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var totalItems
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var currentZoom
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var bindto = options.bindto
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var _zoomChanged = options.changed || function() {}
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var element
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var mousewheelTimer
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var deltaY = 0
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var leftRatio = 0
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zoom.setOptions = function(options) {
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if (options == null) options = {}
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_zoom2_factor = options.factor || 1
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_left = 0
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totalItems = options.totalItems || 0
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currentZoom = [0, totalItems]
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_zoomChanged = options.changed || _zoomChanged
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}
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zoom.setOptions(options)
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function verifyZoom(newZoom) {
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//newZoom.sort();
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if (newZoom[1] > totalItems) {
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var diff = newZoom[1] - totalItems
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newZoom[0] -= diff
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newZoom[1] -= diff
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}
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if (newZoom[0] < 0) {
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var diff = newZoom[0] * -1
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newZoom[0] += diff
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newZoom[1] += diff
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}
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if (newZoom[1] > totalItems) newZoom[1] = totalItems
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if (newZoom[0] < 0) newZoom[0] = 0
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}
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function zoomAndPan(zoomFactor, left) {
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var itemsToShow = Math.ceil(totalItems / zoomFactor)
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var newZoom = [left, left + itemsToShow]
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verifyZoom(newZoom)
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currentZoom = newZoom
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onZoomChanged()
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}
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function onZoomChanged() {
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if (_zoomChanged != null) _zoomChanged(zoom.getZoom())
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}
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function applyZoomAndPan() {
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zoomAndPan(_zoom2_factor, _left)
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}
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function getItemsToShow() {
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var itemsToShow = Math.ceil(totalItems / _zoom2_factor)
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return itemsToShow
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}
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zoom.getZoom = function() {
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return { totalItems: totalItems, currentZoom: currentZoom.slice() }
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}
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zoom.factor = function(factor, skipDraw) {
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if (arguments.length == 0) return _zoom2_factor
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_zoom2_factor = factor
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if (_zoom2_factor < 1) _zoom2_factor = 1
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if (skipDraw) return
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applyZoomAndPan()
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}
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zoom.left = function(left, skipDraw) {
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if (arguments.length == 0) return _left
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_left = left
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if (_left < 0) _left = 0
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var pageSize = getItemsToShow()
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//_left += pageSize;
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if (_left + pageSize > totalItems) _left = totalItems - pageSize
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console.log({ left: _left, pageSize: pageSize })
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if (skipDraw) return
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applyZoomAndPan()
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}
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zoom.zoomAndPanByRatio = function(zoomRatio, panRatio) {
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var pageSize = getItemsToShow()
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var leftOffset = Math.round(pageSize * panRatio)
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var mouseLeft = _left + leftOffset
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zoom.factor(zoom.factor() * zoomRatio, true)
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var finalLeft = mouseLeft
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if (zoomRatio != 1) {
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var pageSize2 = getItemsToShow()
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var leftOffset2 = Math.round(pageSize2 * panRatio)
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finalLeft = mouseLeft - leftOffset2
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}
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zoom.left(finalLeft, true)
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applyZoomAndPan()
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}
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zoom.zoomIn = function() {
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zoom.zoomAndPanByRatio(2, 0)
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}
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zoom.zoomOut = function() {
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zoom.zoomAndPanByRatio(0.5, 0)
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}
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zoom.panLeft = function() {
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zoom.zoomAndPanByRatio(1, -1)
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}
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zoom.panRight = function() {
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zoom.zoomAndPanByRatio(1, 1)
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}
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zoom.reset = function() {
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_left = 0
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_zoom2_factor = 1
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applyZoomAndPan()
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}
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function doZoom() {
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if (deltaY != 0) {
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var maxDelta = 10
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var multiply = (maxDelta + deltaY) / maxDelta
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//var factor = chart.zoom2.factor()*multiply;
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//factor= Math.ceil(factor*100) / 100;
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console.log({ deltaY: deltaY, multiply: multiply })
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zoom.zoomAndPanByRatio(multiply, leftRatio) //0.5);//leftRatio);
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deltaY = 0
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}
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}
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function element_mousewheel(e) {
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deltaY += e.deltaY
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leftRatio = (e.offsetX - 70) / (e.currentTarget.offsetWidth - 70)
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//console.log({ "e.offsetX": e.offsetX, "e.currentTarget.offsetWidth": e.currentTarget.offsetWidth, leftRatio: leftRatio });
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mousewheelTimer.set(150)
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e.preventDefault()
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}
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if (bindto != null) {
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element = $(options.bindto)
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if (element.mousewheel) {
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mousewheelTimer = new Timer(doZoom)
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element.mousewheel(element_mousewheel)
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}
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}
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return zoom
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}
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if (typeof Q == 'undefined') {
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var Q = function() {}
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Q.copy = function(src, target, options, depth) {
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///<summary>Copies an object into a target object, recursively cloning any object or array in the way, overwrite=true will overwrite a primitive field value even if exists</summary>
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///<param name="src" />
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///<param name="target" />
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///<param name="options" type="Object">{ overwrite:false }</param>
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///<returns type="Object">The copied object</returns>
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if (depth == null) depth = 0
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if (depth == 100) {
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console.warn('Q.copy is in depth of 100 - possible circular reference')
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}
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options = options || { overwrite: false }
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if (src == target || src == null) return target
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if (typeof src != 'object') {
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if (options.overwrite || target == null) return src
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return target
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}
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if (typeof src.clone == 'function') {
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if (options.overwrite || target == null) return src.clone()
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return target
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}
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if (target == null) {
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if (src instanceof Array) target = []
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else target = {}
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}
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if (src instanceof Array) {
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for (var i = 0; i < src.length; i++) {
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var item = src[i]
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var item2 = target[i]
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item2 = Q.copy(item, item2, options, depth + 1)
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target[i] = item2
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}
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target.splice(src.length, target.length - src.length)
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return target
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}
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for (var p in src) {
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var value = src[p]
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var value2 = target[p]
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value2 = Q.copy(value, value2, options, depth + 1)
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target[p] = value2
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}
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return target
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}
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}
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if (typeof Timer == 'undefined') {
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var Timer = function(action, ms) {
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this.action = action
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if (ms != null) this.set(ms)
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}
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Timer.prototype.set = function(ms) {
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if (ms == null) ms = this._ms
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else this._ms = ms
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this.clear()
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if (ms == null) return
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this.timeout = window.setTimeout(this.onTick.bind(this), ms)
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}
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Timer.prototype.onTick = function() {
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this.clear()
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this.action()
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}
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Timer.prototype.clear = function(ms) {
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if (this.timeout == null) return
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window.clearTimeout(this.timeout)
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this.timeout = null
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}
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}
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if (typeof Array.prototype.splitIntoChunksOf == 'undefined') {
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Array.prototype.splitIntoChunksOf = function(countInEachChunk) {
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var chunks = Math.ceil(this.length / countInEachChunk)
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var list = []
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for (var i = 0; i < this.length; i += countInEachChunk) {
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list.push(this.slice(i, i + countInEachChunk))
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}
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return list
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}
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}
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