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360 lines
9.4 KiB
360 lines
9.4 KiB
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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