{"ast":null,"code":"import \"core-js/modules/es.array.join.js\";\nimport \"core-js/modules/es.array.slice.js\";\nimport \"core-js/modules/es.array.splice.js\";\nimport { devicePixelRatio } from '../config.js';\nimport * as util from '../core/util.js';\nimport Layer from './Layer.js';\nimport requestAnimationFrame from '../animation/requestAnimationFrame.js';\nimport env from '../core/env.js';\nimport { brush, brushSingle } from './graphic.js';\nimport { REDRAW_BIT } from '../graphic/constants.js';\nimport { getSize } from './helper.js';\nvar HOVER_LAYER_ZLEVEL = 1e5;\nvar CANVAS_ZLEVEL = 314159;\nvar EL_AFTER_INCREMENTAL_INC = 0.01;\nvar INCREMENTAL_INC = 0.001;\n\nfunction isLayerValid(layer) {\n  if (!layer) {\n    return false;\n  }\n\n  if (layer.__builtin__) {\n    return true;\n  }\n\n  if (typeof layer.resize !== 'function' || typeof layer.refresh !== 'function') {\n    return false;\n  }\n\n  return true;\n}\n\nfunction createRoot(width, height) {\n  var domRoot = document.createElement('div');\n  domRoot.style.cssText = ['position:relative', 'width:' + width + 'px', 'height:' + height + 'px', 'padding:0', 'margin:0', 'border-width:0'].join(';') + ';';\n  return domRoot;\n}\n\nvar CanvasPainter = function () {\n  function CanvasPainter(root, storage, opts, id) {\n    this.type = 'canvas';\n    this._zlevelList = [];\n    this._prevDisplayList = [];\n    this._layers = {};\n    this._layerConfig = {};\n    this._needsManuallyCompositing = false;\n    this.type = 'canvas';\n    var singleCanvas = !root.nodeName || root.nodeName.toUpperCase() === 'CANVAS';\n    this._opts = opts = util.extend({}, opts || {});\n    this.dpr = opts.devicePixelRatio || devicePixelRatio;\n    this._singleCanvas = singleCanvas;\n    this.root = root;\n    var rootStyle = root.style;\n\n    if (rootStyle) {\n      util.disableUserSelect(root);\n      root.innerHTML = '';\n    }\n\n    this.storage = storage;\n    var zlevelList = this._zlevelList;\n    this._prevDisplayList = [];\n    var layers = this._layers;\n\n    if (!singleCanvas) {\n      this._width = getSize(root, 0, opts);\n      this._height = getSize(root, 1, opts);\n      var domRoot = this._domRoot = createRoot(this._width, this._height);\n      root.appendChild(domRoot);\n    } else {\n      var rootCanvas = root;\n      var width = rootCanvas.width;\n      var height = rootCanvas.height;\n\n      if (opts.width != null) {\n        width = opts.width;\n      }\n\n      if (opts.height != null) {\n        height = opts.height;\n      }\n\n      this.dpr = opts.devicePixelRatio || 1;\n      rootCanvas.width = width * this.dpr;\n      rootCanvas.height = height * this.dpr;\n      this._width = width;\n      this._height = height;\n      var mainLayer = new Layer(rootCanvas, this, this.dpr);\n      mainLayer.__builtin__ = true;\n      mainLayer.initContext();\n      layers[CANVAS_ZLEVEL] = mainLayer;\n      mainLayer.zlevel = CANVAS_ZLEVEL;\n      zlevelList.push(CANVAS_ZLEVEL);\n      this._domRoot = root;\n    }\n  }\n\n  CanvasPainter.prototype.getType = function () {\n    return 'canvas';\n  };\n\n  CanvasPainter.prototype.isSingleCanvas = function () {\n    return this._singleCanvas;\n  };\n\n  CanvasPainter.prototype.getViewportRoot = function () {\n    return this._domRoot;\n  };\n\n  CanvasPainter.prototype.getViewportRootOffset = function () {\n    var viewportRoot = this.getViewportRoot();\n\n    if (viewportRoot) {\n      return {\n        offsetLeft: viewportRoot.offsetLeft || 0,\n        offsetTop: viewportRoot.offsetTop || 0\n      };\n    }\n  };\n\n  CanvasPainter.prototype.refresh = function (paintAll) {\n    var list = this.storage.getDisplayList(true);\n    var prevList = this._prevDisplayList;\n    var zlevelList = this._zlevelList;\n    this._redrawId = Math.random();\n\n    this._paintList(list, prevList, paintAll, this._redrawId);\n\n    for (var i = 0; i < zlevelList.length; i++) {\n      var z = zlevelList[i];\n      var layer = this._layers[z];\n\n      if (!layer.__builtin__ && layer.refresh) {\n        var clearColor = i === 0 ? this._backgroundColor : null;\n        layer.refresh(clearColor);\n      }\n    }\n\n    if (this._opts.useDirtyRect) {\n      this._prevDisplayList = list.slice();\n    }\n\n    return this;\n  };\n\n  CanvasPainter.prototype.refreshHover = function () {\n    this._paintHoverList(this.storage.getDisplayList(false));\n  };\n\n  CanvasPainter.prototype._paintHoverList = function (list) {\n    var len = list.length;\n    var hoverLayer = this._hoverlayer;\n    hoverLayer && hoverLayer.clear();\n\n    if (!len) {\n      return;\n    }\n\n    var scope = {\n      inHover: true,\n      viewWidth: this._width,\n      viewHeight: this._height\n    };\n    var ctx;\n\n    for (var i = 0; i < len; i++) {\n      var el = list[i];\n\n      if (el.__inHover) {\n        if (!hoverLayer) {\n          hoverLayer = this._hoverlayer = this.getLayer(HOVER_LAYER_ZLEVEL);\n        }\n\n        if (!ctx) {\n          ctx = hoverLayer.ctx;\n          ctx.save();\n        }\n\n        brush(ctx, el, scope, i === len - 1);\n      }\n    }\n\n    if (ctx) {\n      ctx.restore();\n    }\n  };\n\n  CanvasPainter.prototype.getHoverLayer = function () {\n    return this.getLayer(HOVER_LAYER_ZLEVEL);\n  };\n\n  CanvasPainter.prototype.paintOne = function (ctx, el) {\n    brushSingle(ctx, el);\n  };\n\n  CanvasPainter.prototype._paintList = function (list, prevList, paintAll, redrawId) {\n    if (this._redrawId !== redrawId) {\n      return;\n    }\n\n    paintAll = paintAll || false;\n\n    this._updateLayerStatus(list);\n\n    var _a = this._doPaintList(list, prevList, paintAll),\n        finished = _a.finished,\n        needsRefreshHover = _a.needsRefreshHover;\n\n    if (this._needsManuallyCompositing) {\n      this._compositeManually();\n    }\n\n    if (needsRefreshHover) {\n      this._paintHoverList(list);\n    }\n\n    if (!finished) {\n      var self_1 = this;\n      requestAnimationFrame(function () {\n        self_1._paintList(list, prevList, paintAll, redrawId);\n      });\n    } else {\n      this.eachLayer(function (layer) {\n        layer.afterBrush && layer.afterBrush();\n      });\n    }\n  };\n\n  CanvasPainter.prototype._compositeManually = function () {\n    var ctx = this.getLayer(CANVAS_ZLEVEL).ctx;\n    var width = this._domRoot.width;\n    var height = this._domRoot.height;\n    ctx.clearRect(0, 0, width, height);\n    this.eachBuiltinLayer(function (layer) {\n      if (layer.virtual) {\n        ctx.drawImage(layer.dom, 0, 0, width, height);\n      }\n    });\n  };\n\n  CanvasPainter.prototype._doPaintList = function (list, prevList, paintAll) {\n    var _this = this;\n\n    var layerList = [];\n    var useDirtyRect = this._opts.useDirtyRect;\n\n    for (var zi = 0; zi < this._zlevelList.length; zi++) {\n      var zlevel = this._zlevelList[zi];\n      var layer = this._layers[zlevel];\n\n      if (layer.__builtin__ && layer !== this._hoverlayer && (layer.__dirty || paintAll)) {\n        layerList.push(layer);\n      }\n    }\n\n    var finished = true;\n    var needsRefreshHover = false;\n\n    var _loop_1 = function _loop_1(k) {\n      var layer = layerList[k];\n      var ctx = layer.ctx;\n      var repaintRects = useDirtyRect && layer.createRepaintRects(list, prevList, this_1._width, this_1._height);\n      var start = paintAll ? layer.__startIndex : layer.__drawIndex;\n      var useTimer = !paintAll && layer.incremental && Date.now;\n      var startTime = useTimer && Date.now();\n      var clearColor = layer.zlevel === this_1._zlevelList[0] ? this_1._backgroundColor : null;\n\n      if (layer.__startIndex === layer.__endIndex) {\n        layer.clear(false, clearColor, repaintRects);\n      } else if (start === layer.__startIndex) {\n        var firstEl = list[start];\n\n        if (!firstEl.incremental || !firstEl.notClear || paintAll) {\n          layer.clear(false, clearColor, repaintRects);\n        }\n      }\n\n      if (start === -1) {\n        console.error('For some unknown reason. drawIndex is -1');\n        start = layer.__startIndex;\n      }\n\n      var i;\n\n      var repaint = function repaint(repaintRect) {\n        var scope = {\n          inHover: false,\n          allClipped: false,\n          prevEl: null,\n          viewWidth: _this._width,\n          viewHeight: _this._height\n        };\n\n        for (i = start; i < layer.__endIndex; i++) {\n          var el = list[i];\n\n          if (el.__inHover) {\n            needsRefreshHover = true;\n          }\n\n          _this._doPaintEl(el, layer, useDirtyRect, repaintRect, scope, i === layer.__endIndex - 1);\n\n          if (useTimer) {\n            var dTime = Date.now() - startTime;\n\n            if (dTime > 15) {\n              break;\n            }\n          }\n        }\n\n        if (scope.prevElClipPaths) {\n          ctx.restore();\n        }\n      };\n\n      if (repaintRects) {\n        if (repaintRects.length === 0) {\n          i = layer.__endIndex;\n        } else {\n          var dpr = this_1.dpr;\n\n          for (var r = 0; r < repaintRects.length; ++r) {\n            var rect = repaintRects[r];\n            ctx.save();\n            ctx.beginPath();\n            ctx.rect(rect.x * dpr, rect.y * dpr, rect.width * dpr, rect.height * dpr);\n            ctx.clip();\n            repaint(rect);\n            ctx.restore();\n          }\n        }\n      } else {\n        ctx.save();\n        repaint();\n        ctx.restore();\n      }\n\n      layer.__drawIndex = i;\n\n      if (layer.__drawIndex < layer.__endIndex) {\n        finished = false;\n      }\n    };\n\n    var this_1 = this;\n\n    for (var k = 0; k < layerList.length; k++) {\n      _loop_1(k);\n    }\n\n    if (env.wxa) {\n      util.each(this._layers, function (layer) {\n        if (layer && layer.ctx && layer.ctx.draw) {\n          layer.ctx.draw();\n        }\n      });\n    }\n\n    return {\n      finished: finished,\n      needsRefreshHover: needsRefreshHover\n    };\n  };\n\n  CanvasPainter.prototype._doPaintEl = function (el, currentLayer, useDirtyRect, repaintRect, scope, isLast) {\n    var ctx = currentLayer.ctx;\n\n    if (useDirtyRect) {\n      var paintRect = el.getPaintRect();\n\n      if (!repaintRect || paintRect && paintRect.intersect(repaintRect)) {\n        brush(ctx, el, scope, isLast);\n        el.setPrevPaintRect(paintRect);\n      }\n    } else {\n      brush(ctx, el, scope, isLast);\n    }\n  };\n\n  CanvasPainter.prototype.getLayer = function (zlevel, virtual) {\n    if (this._singleCanvas && !this._needsManuallyCompositing) {\n      zlevel = CANVAS_ZLEVEL;\n    }\n\n    var layer = this._layers[zlevel];\n\n    if (!layer) {\n      layer = new Layer('zr_' + zlevel, this, this.dpr);\n      layer.zlevel = zlevel;\n      layer.__builtin__ = true;\n\n      if (this._layerConfig[zlevel]) {\n        util.merge(layer, this._layerConfig[zlevel], true);\n      } else if (this._layerConfig[zlevel - EL_AFTER_INCREMENTAL_INC]) {\n        util.merge(layer, this._layerConfig[zlevel - EL_AFTER_INCREMENTAL_INC], true);\n      }\n\n      if (virtual) {\n        layer.virtual = virtual;\n      }\n\n      this.insertLayer(zlevel, layer);\n      layer.initContext();\n    }\n\n    return layer;\n  };\n\n  CanvasPainter.prototype.insertLayer = function (zlevel, layer) {\n    var layersMap = this._layers;\n    var zlevelList = this._zlevelList;\n    var len = zlevelList.length;\n    var domRoot = this._domRoot;\n    var prevLayer = null;\n    var i = -1;\n\n    if (layersMap[zlevel]) {\n      if (process.env.NODE_ENV !== 'production') {\n        util.logError('ZLevel ' + zlevel + ' has been used already');\n      }\n\n      return;\n    }\n\n    if (!isLayerValid(layer)) {\n      if (process.env.NODE_ENV !== 'production') {\n        util.logError('Layer of zlevel ' + zlevel + ' is not valid');\n      }\n\n      return;\n    }\n\n    if (len > 0 && zlevel > zlevelList[0]) {\n      for (i = 0; i < len - 1; i++) {\n        if (zlevelList[i] < zlevel && zlevelList[i + 1] > zlevel) {\n          break;\n        }\n      }\n\n      prevLayer = layersMap[zlevelList[i]];\n    }\n\n    zlevelList.splice(i + 1, 0, zlevel);\n    layersMap[zlevel] = layer;\n\n    if (!layer.virtual) {\n      if (prevLayer) {\n        var prevDom = prevLayer.dom;\n\n        if (prevDom.nextSibling) {\n          domRoot.insertBefore(layer.dom, prevDom.nextSibling);\n        } else {\n          domRoot.appendChild(layer.dom);\n        }\n      } else {\n        if (domRoot.firstChild) {\n          domRoot.insertBefore(layer.dom, domRoot.firstChild);\n        } else {\n          domRoot.appendChild(layer.dom);\n        }\n      }\n    }\n\n    layer.__painter = this;\n  };\n\n  CanvasPainter.prototype.eachLayer = function (cb, context) {\n    var zlevelList = this._zlevelList;\n\n    for (var i = 0; i < zlevelList.length; i++) {\n      var z = zlevelList[i];\n      cb.call(context, this._layers[z], z);\n    }\n  };\n\n  CanvasPainter.prototype.eachBuiltinLayer = function (cb, context) {\n    var zlevelList = this._zlevelList;\n\n    for (var i = 0; i < zlevelList.length; i++) {\n      var z = zlevelList[i];\n      var layer = this._layers[z];\n\n      if (layer.__builtin__) {\n        cb.call(context, layer, z);\n      }\n    }\n  };\n\n  CanvasPainter.prototype.eachOtherLayer = function (cb, context) {\n    var zlevelList = this._zlevelList;\n\n    for (var i = 0; i < zlevelList.length; i++) {\n      var z = zlevelList[i];\n      var layer = this._layers[z];\n\n      if (!layer.__builtin__) {\n        cb.call(context, layer, z);\n      }\n    }\n  };\n\n  CanvasPainter.prototype.getLayers = function () {\n    return this._layers;\n  };\n\n  CanvasPainter.prototype._updateLayerStatus = function (list) {\n    this.eachBuiltinLayer(function (layer, z) {\n      layer.__dirty = layer.__used = false;\n    });\n\n    function updatePrevLayer(idx) {\n      if (prevLayer) {\n        if (prevLayer.__endIndex !== idx) {\n          prevLayer.__dirty = true;\n        }\n\n        prevLayer.__endIndex = idx;\n      }\n    }\n\n    if (this._singleCanvas) {\n      for (var i_1 = 1; i_1 < list.length; i_1++) {\n        var el = list[i_1];\n\n        if (el.zlevel !== list[i_1 - 1].zlevel || el.incremental) {\n          this._needsManuallyCompositing = true;\n          break;\n        }\n      }\n    }\n\n    var prevLayer = null;\n    var incrementalLayerCount = 0;\n    var prevZlevel;\n    var i;\n\n    for (i = 0; i < list.length; i++) {\n      var el = list[i];\n      var zlevel = el.zlevel;\n      var layer = void 0;\n\n      if (prevZlevel !== zlevel) {\n        prevZlevel = zlevel;\n        incrementalLayerCount = 0;\n      }\n\n      if (el.incremental) {\n        layer = this.getLayer(zlevel + INCREMENTAL_INC, this._needsManuallyCompositing);\n        layer.incremental = true;\n        incrementalLayerCount = 1;\n      } else {\n        layer = this.getLayer(zlevel + (incrementalLayerCount > 0 ? EL_AFTER_INCREMENTAL_INC : 0), this._needsManuallyCompositing);\n      }\n\n      if (!layer.__builtin__) {\n        util.logError('ZLevel ' + zlevel + ' has been used by unkown layer ' + layer.id);\n      }\n\n      if (layer !== prevLayer) {\n        layer.__used = true;\n\n        if (layer.__startIndex !== i) {\n          layer.__dirty = true;\n        }\n\n        layer.__startIndex = i;\n\n        if (!layer.incremental) {\n          layer.__drawIndex = i;\n        } else {\n          layer.__drawIndex = -1;\n        }\n\n        updatePrevLayer(i);\n        prevLayer = layer;\n      }\n\n      if (el.__dirty & REDRAW_BIT && !el.__inHover) {\n        layer.__dirty = true;\n\n        if (layer.incremental && layer.__drawIndex < 0) {\n          layer.__drawIndex = i;\n        }\n      }\n    }\n\n    updatePrevLayer(i);\n    this.eachBuiltinLayer(function (layer, z) {\n      if (!layer.__used && layer.getElementCount() > 0) {\n        layer.__dirty = true;\n        layer.__startIndex = layer.__endIndex = layer.__drawIndex = 0;\n      }\n\n      if (layer.__dirty && layer.__drawIndex < 0) {\n        layer.__drawIndex = layer.__startIndex;\n      }\n    });\n  };\n\n  CanvasPainter.prototype.clear = function () {\n    this.eachBuiltinLayer(this._clearLayer);\n    return this;\n  };\n\n  CanvasPainter.prototype._clearLayer = function (layer) {\n    layer.clear();\n  };\n\n  CanvasPainter.prototype.setBackgroundColor = function (backgroundColor) {\n    this._backgroundColor = backgroundColor;\n    util.each(this._layers, function (layer) {\n      layer.setUnpainted();\n    });\n  };\n\n  CanvasPainter.prototype.configLayer = function (zlevel, config) {\n    if (config) {\n      var layerConfig = this._layerConfig;\n\n      if (!layerConfig[zlevel]) {\n        layerConfig[zlevel] = config;\n      } else {\n        util.merge(layerConfig[zlevel], config, true);\n      }\n\n      for (var i = 0; i < this._zlevelList.length; i++) {\n        var _zlevel = this._zlevelList[i];\n\n        if (_zlevel === zlevel || _zlevel === zlevel + EL_AFTER_INCREMENTAL_INC) {\n          var layer = this._layers[_zlevel];\n          util.merge(layer, layerConfig[zlevel], true);\n        }\n      }\n    }\n  };\n\n  CanvasPainter.prototype.delLayer = function (zlevel) {\n    var layers = this._layers;\n    var zlevelList = this._zlevelList;\n    var layer = layers[zlevel];\n\n    if (!layer) {\n      return;\n    }\n\n    layer.dom.parentNode.removeChild(layer.dom);\n    delete layers[zlevel];\n    zlevelList.splice(util.indexOf(zlevelList, zlevel), 1);\n  };\n\n  CanvasPainter.prototype.resize = function (width, height) {\n    if (!this._domRoot.style) {\n      if (width == null || height == null) {\n        return;\n      }\n\n      this._width = width;\n      this._height = height;\n      this.getLayer(CANVAS_ZLEVEL).resize(width, height);\n    } else {\n      var domRoot = this._domRoot;\n      domRoot.style.display = 'none';\n      var opts = this._opts;\n      var root = this.root;\n      width != null && (opts.width = width);\n      height != null && (opts.height = height);\n      width = getSize(root, 0, opts);\n      height = getSize(root, 1, opts);\n      domRoot.style.display = '';\n\n      if (this._width !== width || height !== this._height) {\n        domRoot.style.width = width + 'px';\n        domRoot.style.height = height + 'px';\n\n        for (var id in this._layers) {\n          if (this._layers.hasOwnProperty(id)) {\n            this._layers[id].resize(width, height);\n          }\n        }\n\n        this.refresh(true);\n      }\n\n      this._width = width;\n      this._height = height;\n    }\n\n    return this;\n  };\n\n  CanvasPainter.prototype.clearLayer = function (zlevel) {\n    var layer = this._layers[zlevel];\n\n    if (layer) {\n      layer.clear();\n    }\n  };\n\n  CanvasPainter.prototype.dispose = function () {\n    this.root.innerHTML = '';\n    this.root = this.storage = this._domRoot = this._layers = null;\n  };\n\n  CanvasPainter.prototype.getRenderedCanvas = function (opts) {\n    opts = opts || {};\n\n    if (this._singleCanvas && !this._compositeManually) {\n      return this._layers[CANVAS_ZLEVEL].dom;\n    }\n\n    var imageLayer = new Layer('image', this, opts.pixelRatio || this.dpr);\n    imageLayer.initContext();\n    imageLayer.clear(false, opts.backgroundColor || this._backgroundColor);\n    var ctx = imageLayer.ctx;\n\n    if (opts.pixelRatio <= this.dpr) {\n      this.refresh();\n      var width_1 = imageLayer.dom.width;\n      var height_1 = imageLayer.dom.height;\n      this.eachLayer(function (layer) {\n        if (layer.__builtin__) {\n          ctx.drawImage(layer.dom, 0, 0, width_1, height_1);\n        } else if (layer.renderToCanvas) {\n          ctx.save();\n          layer.renderToCanvas(ctx);\n          ctx.restore();\n        }\n      });\n    } else {\n      var scope = {\n        inHover: false,\n        viewWidth: this._width,\n        viewHeight: this._height\n      };\n      var displayList = this.storage.getDisplayList(true);\n\n      for (var i = 0, len = displayList.length; i < len; i++) {\n        var el = displayList[i];\n        brush(ctx, el, scope, i === len - 1);\n      }\n    }\n\n    return imageLayer.dom;\n  };\n\n  CanvasPainter.prototype.getWidth = function () {\n    return this._width;\n  };\n\n  CanvasPainter.prototype.getHeight = function () {\n    return this._height;\n  };\n\n  return CanvasPainter;\n}();\n\nexport default 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{ devicePixelRatio } from '../config.js';\nimport * as util from '../core/util.js';\nimport Layer from './Layer.js';\nimport requestAnimationFrame from '../animation/requestAnimationFrame.js';\nimport env from '../core/env.js';\nimport { brush, brushSingle } from './graphic.js';\nimport { REDRAW_BIT } from '../graphic/constants.js';\nimport { getSize } from './helper.js';\nvar HOVER_LAYER_ZLEVEL = 1e5;\nvar CANVAS_ZLEVEL = 314159;\nvar EL_AFTER_INCREMENTAL_INC = 0.01;\nvar INCREMENTAL_INC = 0.001;\nfunction isLayerValid(layer) {\n    if (!layer) {\n        return false;\n    }\n    if (layer.__builtin__) {\n        return true;\n    }\n    if (typeof (layer.resize) !== 'function'\n        || typeof (layer.refresh) !== 'function') {\n        return false;\n    }\n    return true;\n}\nfunction createRoot(width, height) {\n    var domRoot = document.createElement('div');\n    domRoot.style.cssText = [\n        'position:relative',\n        'width:' + width + 'px',\n        'height:' + height + 'px',\n        'padding:0',\n        'margin:0',\n        'border-width:0'\n    ].join(';') + ';';\n    return domRoot;\n}\nvar CanvasPainter = (function () {\n    function CanvasPainter(root, storage, opts, id) {\n        this.type = 'canvas';\n        this._zlevelList = [];\n        this._prevDisplayList = [];\n        this._layers = {};\n        this._layerConfig = {};\n        this._needsManuallyCompositing = false;\n        this.type = 'canvas';\n        var singleCanvas = !root.nodeName\n            || root.nodeName.toUpperCase() === 'CANVAS';\n        this._opts = opts = util.extend({}, opts || {});\n        this.dpr = opts.devicePixelRatio || devicePixelRatio;\n        this._singleCanvas = singleCanvas;\n        this.root = root;\n        var rootStyle = root.style;\n        if (rootStyle) {\n            util.disableUserSelect(root);\n            root.innerHTML = '';\n        }\n        this.storage = storage;\n        var zlevelList = this._zlevelList;\n        this._prevDisplayList = [];\n        var layers = this._layers;\n        if (!singleCanvas) {\n            this._width = getSize(root, 0, opts);\n            this._height = getSize(root, 1, opts);\n            var domRoot = this._domRoot = createRoot(this._width, this._height);\n            root.appendChild(domRoot);\n        }\n        else {\n            var rootCanvas = root;\n            var width = rootCanvas.width;\n            var height = rootCanvas.height;\n            if (opts.width != null) {\n                width = opts.width;\n            }\n            if (opts.height != null) {\n                height = opts.height;\n            }\n            this.dpr = opts.devicePixelRatio || 1;\n            rootCanvas.width = width * this.dpr;\n            rootCanvas.height = height * this.dpr;\n            this._width = width;\n            this._height = height;\n            var mainLayer = new Layer(rootCanvas, this, this.dpr);\n            mainLayer.__builtin__ = true;\n            mainLayer.initContext();\n            layers[CANVAS_ZLEVEL] = mainLayer;\n            mainLayer.zlevel = CANVAS_ZLEVEL;\n            zlevelList.push(CANVAS_ZLEVEL);\n            this._domRoot = root;\n        }\n    }\n    CanvasPainter.prototype.getType = function () {\n        return 'canvas';\n    };\n    CanvasPainter.prototype.isSingleCanvas = function () {\n        return this._singleCanvas;\n    };\n    CanvasPainter.prototype.getViewportRoot = function () {\n        return this._domRoot;\n    };\n    CanvasPainter.prototype.getViewportRootOffset = function () {\n        var viewportRoot = this.getViewportRoot();\n        if (viewportRoot) {\n            return {\n                offsetLeft: viewportRoot.offsetLeft || 0,\n                offsetTop: viewportRoot.offsetTop || 0\n            };\n        }\n    };\n    CanvasPainter.prototype.refresh = function (paintAll) {\n        var list = this.storage.getDisplayList(true);\n        var prevList = this._prevDisplayList;\n        var zlevelList = this._zlevelList;\n        this._redrawId = Math.random();\n        this._paintList(list, prevList, paintAll, this._redrawId);\n        for (var i = 0; i < zlevelList.length; i++) {\n            var z = zlevelList[i];\n            var layer = this._layers[z];\n            if (!layer.__builtin__ && layer.refresh) {\n                var clearColor = i === 0 ? this._backgroundColor : null;\n                layer.refresh(clearColor);\n            }\n        }\n        if (this._opts.useDirtyRect) {\n            this._prevDisplayList = list.slice();\n        }\n        return this;\n    };\n    CanvasPainter.prototype.refreshHover = function () {\n        this._paintHoverList(this.storage.getDisplayList(false));\n    };\n    CanvasPainter.prototype._paintHoverList = function (list) {\n        var len = list.length;\n        var hoverLayer = this._hoverlayer;\n        hoverLayer && hoverLayer.clear();\n        if (!len) {\n            return;\n        }\n        var scope = {\n            inHover: true,\n            viewWidth: this._width,\n            viewHeight: this._height\n        };\n        var ctx;\n        for (var i = 0; i < len; i++) {\n            var el = list[i];\n            if (el.__inHover) {\n                if (!hoverLayer) {\n                    hoverLayer = this._hoverlayer = this.getLayer(HOVER_LAYER_ZLEVEL);\n                }\n                if (!ctx) {\n                    ctx = hoverLayer.ctx;\n                    ctx.save();\n                }\n                brush(ctx, el, scope, i === len - 1);\n            }\n        }\n        if (ctx) {\n            ctx.restore();\n        }\n    };\n    CanvasPainter.prototype.getHoverLayer = function () {\n        return this.getLayer(HOVER_LAYER_ZLEVEL);\n    };\n    CanvasPainter.prototype.paintOne = function (ctx, el) {\n        brushSingle(ctx, el);\n    };\n    CanvasPainter.prototype._paintList = function (list, prevList, paintAll, redrawId) {\n        if (this._redrawId !== redrawId) {\n            return;\n        }\n        paintAll = paintAll || false;\n        this._updateLayerStatus(list);\n        var _a = this._doPaintList(list, prevList, paintAll), finished = _a.finished, needsRefreshHover = _a.needsRefreshHover;\n        if (this._needsManuallyCompositing) {\n            this._compositeManually();\n        }\n        if (needsRefreshHover) {\n            this._paintHoverList(list);\n        }\n        if (!finished) {\n            var self_1 = this;\n            requestAnimationFrame(function () {\n                self_1._paintList(list, prevList, paintAll, redrawId);\n            });\n        }\n        else {\n            this.eachLayer(function (layer) {\n                layer.afterBrush && layer.afterBrush();\n            });\n        }\n    };\n    CanvasPainter.prototype._compositeManually = function () {\n        var ctx = this.getLayer(CANVAS_ZLEVEL).ctx;\n        var width = this._domRoot.width;\n        var height = this._domRoot.height;\n        ctx.clearRect(0, 0, width, height);\n        this.eachBuiltinLayer(function (layer) {\n            if (layer.virtual) {\n                ctx.drawImage(layer.dom, 0, 0, width, height);\n            }\n        });\n    };\n    CanvasPainter.prototype._doPaintList = function (list, prevList, paintAll) {\n        var _this = this;\n        var layerList = [];\n        var useDirtyRect = this._opts.useDirtyRect;\n        for (var zi = 0; zi < this._zlevelList.length; zi++) {\n            var zlevel = this._zlevelList[zi];\n            var layer = this._layers[zlevel];\n            if (layer.__builtin__\n                && layer !== this._hoverlayer\n                && (layer.__dirty || paintAll)) {\n                layerList.push(layer);\n            }\n        }\n        var finished = true;\n        var needsRefreshHover = false;\n        var _loop_1 = function (k) {\n            var layer = layerList[k];\n            var ctx = layer.ctx;\n            var repaintRects = useDirtyRect\n                && layer.createRepaintRects(list, prevList, this_1._width, this_1._height);\n            var start = paintAll ? layer.__startIndex : layer.__drawIndex;\n            var useTimer = !paintAll && layer.incremental && Date.now;\n            var startTime = useTimer && Date.now();\n            var clearColor = layer.zlevel === this_1._zlevelList[0]\n                ? this_1._backgroundColor : null;\n            if (layer.__startIndex === layer.__endIndex) {\n                layer.clear(false, clearColor, repaintRects);\n            }\n            else if (start === layer.__startIndex) {\n                var firstEl = list[start];\n                if (!firstEl.incremental || !firstEl.notClear || paintAll) {\n                    layer.clear(false, clearColor, repaintRects);\n                }\n            }\n            if (start === -1) {\n                console.error('For some unknown reason. drawIndex is -1');\n                start = layer.__startIndex;\n            }\n            var i;\n            var repaint = function (repaintRect) {\n                var scope = {\n                    inHover: false,\n                    allClipped: false,\n                    prevEl: null,\n                    viewWidth: _this._width,\n                    viewHeight: _this._height\n                };\n                for (i = start; i < layer.__endIndex; i++) {\n                    var el = list[i];\n                    if (el.__inHover) {\n                        needsRefreshHover = true;\n                    }\n                    _this._doPaintEl(el, layer, useDirtyRect, repaintRect, scope, i === layer.__endIndex - 1);\n                    if (useTimer) {\n                        var dTime = Date.now() - startTime;\n                        if (dTime > 15) {\n                            break;\n                        }\n                    }\n                }\n                if (scope.prevElClipPaths) {\n                    ctx.restore();\n                }\n            };\n            if (repaintRects) {\n                if (repaintRects.length === 0) {\n                    i = layer.__endIndex;\n                }\n                else {\n                    var dpr = this_1.dpr;\n                    for (var r = 0; r < repaintRects.length; ++r) {\n                        var rect = repaintRects[r];\n                        ctx.save();\n                        ctx.beginPath();\n                        ctx.rect(rect.x * dpr, rect.y * dpr, rect.width * dpr, rect.height * dpr);\n                        ctx.clip();\n                        repaint(rect);\n                        ctx.restore();\n                    }\n                }\n            }\n            else {\n                ctx.save();\n                repaint();\n                ctx.restore();\n            }\n            layer.__drawIndex = i;\n            if (layer.__drawIndex < layer.__endIndex) {\n                finished = false;\n            }\n        };\n        var this_1 = this;\n        for (var k = 0; k < layerList.length; k++) {\n            _loop_1(k);\n        }\n        if (env.wxa) {\n            util.each(this._layers, function (layer) {\n                if (layer && layer.ctx && layer.ctx.draw) {\n                    layer.ctx.draw();\n                }\n            });\n        }\n        return {\n            finished: finished,\n            needsRefreshHover: needsRefreshHover\n        };\n    };\n    CanvasPainter.prototype._doPaintEl = function (el, currentLayer, useDirtyRect, repaintRect, scope, isLast) {\n        var ctx = currentLayer.ctx;\n        if (useDirtyRect) {\n            var paintRect = el.getPaintRect();\n            if (!repaintRect || paintRect && paintRect.intersect(repaintRect)) {\n                brush(ctx, el, scope, isLast);\n                el.setPrevPaintRect(paintRect);\n            }\n        }\n        else {\n            brush(ctx, el, scope, isLast);\n        }\n    };\n    CanvasPainter.prototype.getLayer = function (zlevel, virtual) {\n        if (this._singleCanvas && !this._needsManuallyCompositing) {\n            zlevel = CANVAS_ZLEVEL;\n        }\n        var layer = this._layers[zlevel];\n        if (!layer) {\n            layer = new Layer('zr_' + zlevel, this, this.dpr);\n            layer.zlevel = zlevel;\n            layer.__builtin__ = true;\n            if (this._layerConfig[zlevel]) {\n                util.merge(layer, this._layerConfig[zlevel], true);\n            }\n            else if (this._layerConfig[zlevel - EL_AFTER_INCREMENTAL_INC]) {\n                util.merge(layer, this._layerConfig[zlevel - EL_AFTER_INCREMENTAL_INC], true);\n            }\n            if (virtual) {\n                layer.virtual = virtual;\n            }\n            this.insertLayer(zlevel, layer);\n            layer.initContext();\n        }\n        return layer;\n    };\n    CanvasPainter.prototype.insertLayer = function (zlevel, layer) {\n        var layersMap = this._layers;\n        var zlevelList = this._zlevelList;\n        var len = zlevelList.length;\n        var domRoot = this._domRoot;\n        var prevLayer = null;\n        var i = -1;\n        if (layersMap[zlevel]) {\n            if (process.env.NODE_ENV !== 'production') {\n                util.logError('ZLevel ' + zlevel + ' has been used already');\n            }\n            return;\n        }\n        if (!isLayerValid(layer)) {\n            if (process.env.NODE_ENV !== 'production') {\n                util.logError('Layer of zlevel ' + zlevel + ' is not valid');\n            }\n            return;\n        }\n        if (len > 0 && zlevel > zlevelList[0]) {\n            for (i = 0; i < len - 1; i++) {\n                if (zlevelList[i] < zlevel\n                    && zlevelList[i + 1] > zlevel) {\n                    break;\n                }\n            }\n            prevLayer = layersMap[zlevelList[i]];\n        }\n        zlevelList.splice(i + 1, 0, zlevel);\n        layersMap[zlevel] = layer;\n        if (!layer.virtual) {\n            if (prevLayer) {\n                var prevDom = prevLayer.dom;\n                if (prevDom.nextSibling) {\n                    domRoot.insertBefore(layer.dom, prevDom.nextSibling);\n                }\n                else {\n                    domRoot.appendChild(layer.dom);\n                }\n            }\n            else {\n                if (domRoot.firstChild) {\n                    domRoot.insertBefore(layer.dom, domRoot.firstChild);\n                }\n                else {\n                    domRoot.appendChild(layer.dom);\n                }\n            }\n        }\n        layer.__painter = this;\n    };\n    CanvasPainter.prototype.eachLayer = function (cb, context) {\n        var zlevelList = this._zlevelList;\n        for (var i = 0; i < zlevelList.length; i++) {\n            var z = zlevelList[i];\n            cb.call(context, this._layers[z], z);\n        }\n    };\n    CanvasPainter.prototype.eachBuiltinLayer = function (cb, context) {\n        var zlevelList = this._zlevelList;\n        for (var i = 0; i < zlevelList.length; i++) {\n            var z = zlevelList[i];\n            var layer = this._layers[z];\n            if (layer.__builtin__) {\n                cb.call(context, layer, z);\n            }\n        }\n    };\n    CanvasPainter.prototype.eachOtherLayer = function (cb, context) {\n        var zlevelList = this._zlevelList;\n        for (var i = 0; i < zlevelList.length; i++) {\n            var z = zlevelList[i];\n            var layer = this._layers[z];\n            if (!layer.__builtin__) {\n                cb.call(context, layer, z);\n            }\n        }\n    };\n    CanvasPainter.prototype.getLayers = function () {\n        return this._layers;\n    };\n    CanvasPainter.prototype._updateLayerStatus = function (list) {\n        this.eachBuiltinLayer(function (layer, z) {\n            layer.__dirty = layer.__used = false;\n        });\n        function updatePrevLayer(idx) {\n            if (prevLayer) {\n                if (prevLayer.__endIndex !== idx) {\n                    prevLayer.__dirty = true;\n                }\n                prevLayer.__endIndex = idx;\n            }\n        }\n        if (this._singleCanvas) {\n            for (var i_1 = 1; i_1 < list.length; i_1++) {\n                var el = list[i_1];\n                if (el.zlevel !== list[i_1 - 1].zlevel || el.incremental) {\n                    this._needsManuallyCompositing = true;\n                    break;\n                }\n            }\n        }\n        var prevLayer = null;\n        var incrementalLayerCount = 0;\n        var prevZlevel;\n        var i;\n        for (i = 0; i < list.length; i++) {\n            var el = list[i];\n            var zlevel = el.zlevel;\n            var layer = void 0;\n            if (prevZlevel !== zlevel) {\n                prevZlevel = zlevel;\n                incrementalLayerCount = 0;\n            }\n            if (el.incremental) {\n                layer = this.getLayer(zlevel + INCREMENTAL_INC, this._needsManuallyCompositing);\n                layer.incremental = true;\n                incrementalLayerCount = 1;\n            }\n            else {\n                layer = this.getLayer(zlevel + (incrementalLayerCount > 0 ? EL_AFTER_INCREMENTAL_INC : 0), this._needsManuallyCompositing);\n            }\n            if (!layer.__builtin__) {\n                util.logError('ZLevel ' + zlevel + ' has been used by unkown layer ' + layer.id);\n            }\n            if (layer !== prevLayer) {\n                layer.__used = true;\n                if (layer.__startIndex !== i) {\n                    layer.__dirty = true;\n                }\n                layer.__startIndex = i;\n                if (!layer.incremental) {\n                    layer.__drawIndex = i;\n                }\n                else {\n                    layer.__drawIndex = -1;\n                }\n                updatePrevLayer(i);\n                prevLayer = layer;\n            }\n            if ((el.__dirty & REDRAW_BIT) && !el.__inHover) {\n                layer.__dirty = true;\n                if (layer.incremental && layer.__drawIndex < 0) {\n                    layer.__drawIndex = i;\n                }\n            }\n        }\n        updatePrevLayer(i);\n        this.eachBuiltinLayer(function (layer, z) {\n            if (!layer.__used && layer.getElementCount() > 0) {\n                layer.__dirty = true;\n                layer.__startIndex = layer.__endIndex = layer.__drawIndex = 0;\n            }\n            if (layer.__dirty && layer.__drawIndex < 0) {\n                layer.__drawIndex = layer.__startIndex;\n            }\n        });\n    };\n    CanvasPainter.prototype.clear = function () {\n        this.eachBuiltinLayer(this._clearLayer);\n        return this;\n    };\n    CanvasPainter.prototype._clearLayer = function (layer) {\n        layer.clear();\n    };\n    CanvasPainter.prototype.setBackgroundColor = function (backgroundColor) {\n        this._backgroundColor = backgroundColor;\n        util.each(this._layers, function (layer) {\n            layer.setUnpainted();\n        });\n    };\n    CanvasPainter.prototype.configLayer = function (zlevel, config) {\n        if (config) {\n            var layerConfig = this._layerConfig;\n            if (!layerConfig[zlevel]) {\n                layerConfig[zlevel] = config;\n            }\n            else {\n                util.merge(layerConfig[zlevel], config, true);\n            }\n            for (var i = 0; i < this._zlevelList.length; i++) {\n                var _zlevel = this._zlevelList[i];\n                if (_zlevel === zlevel || _zlevel === zlevel + EL_AFTER_INCREMENTAL_INC) {\n                    var layer = this._layers[_zlevel];\n                    util.merge(layer, layerConfig[zlevel], true);\n                }\n            }\n        }\n    };\n    CanvasPainter.prototype.delLayer = function (zlevel) {\n        var layers = this._layers;\n        var zlevelList = this._zlevelList;\n        var layer = layers[zlevel];\n        if (!layer) {\n            return;\n        }\n        layer.dom.parentNode.removeChild(layer.dom);\n        delete layers[zlevel];\n        zlevelList.splice(util.indexOf(zlevelList, zlevel), 1);\n    };\n    CanvasPainter.prototype.resize = function (width, height) {\n        if (!this._domRoot.style) {\n            if (width == null || height == null) {\n                return;\n            }\n            this._width = width;\n            this._height = height;\n            this.getLayer(CANVAS_ZLEVEL).resize(width, height);\n        }\n        else {\n            var domRoot = this._domRoot;\n            domRoot.style.display = 'none';\n            var opts = this._opts;\n            var root = this.root;\n            width != null && (opts.width = width);\n            height != null && (opts.height = height);\n            width = getSize(root, 0, opts);\n            height = getSize(root, 1, opts);\n            domRoot.style.display = '';\n            if (this._width !== width || height !== this._height) {\n                domRoot.style.width = width + 'px';\n                domRoot.style.height = height + 'px';\n                for (var id in this._layers) {\n                    if (this._layers.hasOwnProperty(id)) {\n                        this._layers[id].resize(width, height);\n                    }\n                }\n                this.refresh(true);\n            }\n            this._width = width;\n            this._height = height;\n        }\n        return this;\n    };\n    CanvasPainter.prototype.clearLayer = function (zlevel) {\n        var layer = this._layers[zlevel];\n        if (layer) {\n            layer.clear();\n        }\n    };\n    CanvasPainter.prototype.dispose = function () {\n        this.root.innerHTML = '';\n        this.root =\n            this.storage =\n                this._domRoot =\n                    this._layers = null;\n    };\n    CanvasPainter.prototype.getRenderedCanvas = function (opts) {\n        opts = opts || {};\n        if (this._singleCanvas && !this._compositeManually) {\n            return this._layers[CANVAS_ZLEVEL].dom;\n        }\n        var imageLayer = new Layer('image', this, opts.pixelRatio || this.dpr);\n        imageLayer.initContext();\n        imageLayer.clear(false, opts.backgroundColor || this._backgroundColor);\n        var ctx = imageLayer.ctx;\n        if (opts.pixelRatio <= this.dpr) {\n            this.refresh();\n            var width_1 = imageLayer.dom.width;\n            var height_1 = imageLayer.dom.height;\n            this.eachLayer(function (layer) {\n                if (layer.__builtin__) {\n                    ctx.drawImage(layer.dom, 0, 0, width_1, height_1);\n                }\n                else if (layer.renderToCanvas) {\n                    ctx.save();\n                    layer.renderToCanvas(ctx);\n                    ctx.restore();\n                }\n            });\n        }\n        else {\n            var scope = {\n                inHover: false,\n                viewWidth: this._width,\n                viewHeight: this._height\n            };\n            var displayList = this.storage.getDisplayList(true);\n            for (var i = 0, len = displayList.length; i < len; i++) {\n                var el = displayList[i];\n                brush(ctx, el, scope, i === len - 1);\n            }\n        }\n        return imageLayer.dom;\n    };\n    CanvasPainter.prototype.getWidth = function () {\n        return this._width;\n    };\n    CanvasPainter.prototype.getHeight = function () {\n        return this._height;\n    };\n    return CanvasPainter;\n}());\nexport default CanvasPainter;\n;\n"]},"metadata":{},"sourceType":"module"}