this.canvasWidth||y>this.canvasHeight||x<0||y<0){return null}newRegion=this.getRegion(el,x,y);if(currentRegion!==newRegion){if(currentRegion!==undefined&&highlightEnabled){this.removeHighlight()}this.currentRegion=newRegion;if(newRegion!==undefined&&highlightEnabled){this.renderHighlight()}return true}return false},clearRegionHighlight:function(){if(this.currentRegion!==undefined){this.removeHighlight();this.currentRegion=undefined;return true}return false},renderHighlight:function(){this.changeHighlight(true)},removeHighlight:function(){this.changeHighlight(false)},changeHighlight:function(highlight){},getCurrentRegionTooltip:function(){var options=this.options,header="",entries=[],fields,formats,formatlen,fclass,text,i,showFields,showFieldsKey,newFields,fv,formatter,format,fieldlen,j;if(this.currentRegion===undefined){return""}fields=this.getCurrentRegionFields();formatter=options.get("tooltipFormatter");if(formatter){return formatter(this,options,fields)}if(options.get("tooltipChartTitle")){header+=''+options.get("tooltipChartTitle")+"
\n"}formats=this.options.get("tooltipFormat");if(!formats){return""}if(!$.isArray(formats)){formats=[formats]}if(!$.isArray(fields)){fields=[fields]}showFields=this.options.get("tooltipFormatFieldlist");showFieldsKey=this.options.get("tooltipFormatFieldlistKey");if(showFields&&showFieldsKey){newFields=[];for(i=fields.length;i--;){fv=fields[i][showFieldsKey];if((j=$.inArray(fv,showFields))!=-1){newFields[j]=fields[i]}}fields=newFields}formatlen=formats.length;fieldlen=fields.length;for(i=0;i'+text+"