1 | define(["dijit/Tooltip", "dojo/_base/lang", "dojo/_base/declare", "dojo/_base/window", "dojo/_base/connect", "dojo/dom-style", |
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2 | "./PlotAction", "dojox/gfx/matrix", "dojo/has", "dojo/has!dojo-bidi?../bidi/action2d/Tooltip", |
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3 | "dojox/lang/functional", "dojox/lang/functional/scan", "dojox/lang/functional/fold"], |
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4 | function(DijitTooltip, lang, declare, win, hub, domStyle, PlotAction, m, has, BidiTooltip, df){ |
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5 | |
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6 | /*===== |
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7 | var __TooltipCtorArgs = { |
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8 | // summary: |
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9 | // Additional arguments for tooltip actions. |
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10 | // duration: Number? |
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11 | // The amount of time in milliseconds for an animation to last. Default is 400. |
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12 | // easing: dojo/fx/easing/*? |
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13 | // An easing object (see dojo.fx.easing) for use in an animation. The |
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14 | // default is dojo.fx.easing.backOut. |
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15 | // text: Function? |
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16 | // The function that produces the text to be shown within a tooltip. By default this will be |
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17 | // set by the plot in question, by returning the value of the element. |
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18 | // mouseOver: Boolean? |
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19 | // Whether the tooltip is enabled on mouse over or on mouse click / touch down. Default is true. |
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20 | }; |
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21 | =====*/ |
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22 | |
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23 | var DEFAULT_TEXT = function(o, plot){ |
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24 | var t = o.run && o.run.data && o.run.data[o.index]; |
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25 | if(t && typeof t != "number" && (t.tooltip || t.text)){ |
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26 | return t.tooltip || t.text; |
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27 | } |
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28 | if(plot.tooltipFunc){ |
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29 | return plot.tooltipFunc(o); |
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30 | }else{ |
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31 | return o.y; |
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32 | } |
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33 | }; |
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34 | |
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35 | var pi4 = Math.PI / 4, pi2 = Math.PI / 2; |
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36 | |
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37 | var Tooltip = declare(has("dojo-bidi")? "dojox.charting.action2d.NonBidiTooltip" : "dojox.charting.action2d.Tooltip", PlotAction, { |
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38 | // summary: |
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39 | // Create an action on a plot where a tooltip is shown when hovering over an element. |
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40 | |
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41 | // the data description block for the widget parser |
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42 | defaultParams: { |
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43 | text: DEFAULT_TEXT, // the function to produce a tooltip from the object |
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44 | mouseOver: true |
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45 | }, |
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46 | optionalParams: {}, // no optional parameters |
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47 | |
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48 | constructor: function(chart, plot, kwArgs){ |
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49 | // summary: |
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50 | // Create the tooltip action and connect it to the plot. |
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51 | // chart: dojox/charting/Chart |
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52 | // The chart this action belongs to. |
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53 | // plot: String? |
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54 | // The plot this action is attached to. If not passed, "default" is assumed. |
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55 | // kwArgs: __TooltipCtorArgs? |
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56 | // Optional keyword arguments object for setting parameters. |
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57 | this.text = kwArgs && kwArgs.text ? kwArgs.text : DEFAULT_TEXT; |
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58 | this.mouseOver = kwArgs && kwArgs.mouseOver != undefined ? kwArgs.mouseOver : true; |
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59 | this.connect(); |
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60 | }, |
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61 | |
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62 | process: function(o){ |
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63 | // summary: |
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64 | // Process the action on the given object. |
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65 | // o: dojox/gfx/shape.Shape |
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66 | // The object on which to process the highlighting action. |
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67 | if(o.type === "onplotreset" || o.type === "onmouseout"){ |
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68 | DijitTooltip.hide(this.aroundRect); |
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69 | this.aroundRect = null; |
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70 | if(o.type === "onplotreset"){ |
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71 | delete this.angles; |
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72 | } |
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73 | return; |
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74 | } |
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75 | |
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76 | if(!o.shape || (this.mouseOver && o.type !== "onmouseover") || (!this.mouseOver && o.type !== "onclick")){ return; } |
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77 | |
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78 | // calculate relative coordinates and the position |
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79 | var aroundRect = {type: "rect"}, position = ["after-centered", "before-centered"]; |
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80 | switch(o.element){ |
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81 | case "marker": |
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82 | aroundRect.x = o.cx; |
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83 | aroundRect.y = o.cy; |
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84 | aroundRect.w = aroundRect.h = 1; |
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85 | break; |
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86 | case "circle": |
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87 | aroundRect.x = o.cx - o.cr; |
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88 | aroundRect.y = o.cy - o.cr; |
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89 | aroundRect.w = aroundRect.h = 2 * o.cr; |
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90 | break; |
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91 | case "spider_circle": |
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92 | aroundRect.x = o.cx; |
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93 | aroundRect.y = o.cy ; |
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94 | aroundRect.w = aroundRect.h = 1; |
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95 | break; |
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96 | case "spider_plot": |
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97 | return; |
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98 | case "column": |
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99 | position = ["above-centered", "below-centered"]; |
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100 | // intentional fall down |
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101 | case "bar": |
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102 | aroundRect = lang.clone(o.shape.getShape()); |
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103 | aroundRect.w = aroundRect.width; |
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104 | aroundRect.h = aroundRect.height; |
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105 | break; |
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106 | case "candlestick": |
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107 | aroundRect.x = o.x; |
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108 | aroundRect.y = o.y; |
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109 | aroundRect.w = o.width; |
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110 | aroundRect.h = o.height; |
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111 | break; |
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112 | default: |
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113 | //case "slice": |
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114 | if(!this.angles){ |
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115 | // calculate the running total of slice angles |
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116 | if(typeof o.run.data[0] == "number"){ |
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117 | this.angles = df.map(df.scanl(o.run.data, "+", 0), |
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118 | "* 2 * Math.PI / this", df.foldl(o.run.data, "+", 0)); |
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119 | }else{ |
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120 | this.angles = df.map(df.scanl(o.run.data, "a + b.y", 0), |
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121 | "* 2 * Math.PI / this", df.foldl(o.run.data, "a + b.y", 0)); |
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122 | } |
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123 | } |
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124 | var startAngle = m._degToRad(o.plot.opt.startAngle), |
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125 | angle = (this.angles[o.index] + this.angles[o.index + 1]) / 2 + startAngle; |
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126 | aroundRect.x = o.cx + o.cr * Math.cos(angle); |
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127 | aroundRect.y = o.cy + o.cr * Math.sin(angle); |
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128 | aroundRect.w = aroundRect.h = 1; |
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129 | // depending on startAngle we might go out of the 0-2*PI range, normalize that |
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130 | if(startAngle && (angle < 0 || angle > 2 * Math.PI)){ |
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131 | angle = Math.abs(2 * Math.PI - Math.abs(angle)); |
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132 | } |
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133 | // calculate the position |
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134 | if(angle < pi4){ |
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135 | // do nothing: the position is right |
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136 | }else if(angle < pi2 + pi4){ |
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137 | position = ["below-centered", "above-centered"]; |
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138 | }else if(angle < Math.PI + pi4){ |
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139 | position = ["before-centered", "after-centered"]; |
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140 | }else if(angle < 2 * Math.PI - pi4){ |
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141 | position = ["above-centered", "below-centered"]; |
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142 | } |
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143 | /* |
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144 | else{ |
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145 | // do nothing: the position is right |
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146 | } |
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147 | */ |
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148 | break; |
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149 | } |
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150 | if(has("dojo-bidi")){ |
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151 | this._recheckPosition(o,aroundRect,position); |
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152 | } |
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153 | // adjust relative coordinates to absolute, and remove fractions |
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154 | var lt = this.chart.getCoords(); |
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155 | aroundRect.x += lt.x; |
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156 | aroundRect.y += lt.y; |
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157 | aroundRect.x = Math.round(aroundRect.x); |
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158 | aroundRect.y = Math.round(aroundRect.y); |
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159 | aroundRect.w = Math.ceil(aroundRect.w); |
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160 | aroundRect.h = Math.ceil(aroundRect.h); |
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161 | this.aroundRect = aroundRect; |
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162 | |
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163 | var tooltipText = this.text(o, this.plot); |
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164 | if(tooltipText){ |
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165 | DijitTooltip.show(this._format(tooltipText), this.aroundRect, position); |
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166 | } |
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167 | if(!this.mouseOver){ |
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168 | this._handle = hub.connect(win.doc, "onclick", this, "onClick"); |
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169 | } |
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170 | }, |
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171 | onClick: function(){ |
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172 | this.process({ type: "onmouseout"}); |
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173 | }, |
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174 | _recheckPosition: function(obj,rect,position){ |
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175 | }, |
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176 | _format: function(tooltipText){ |
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177 | return tooltipText; |
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178 | } |
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179 | }); |
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180 | return has("dojo-bidi")? declare("dojox.charting.action2d.Tooltip", [Tooltip, BidiTooltip]) : Tooltip; |
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181 | }); |
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