DataSeriesValues.php

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<?php
class PHPExcel_Chart_DataSeriesValues
{

        const DATASERIES_TYPE_STRING    = 'String';
        const DATASERIES_TYPE_NUMBER    = 'Number';

        private static $_dataTypeValues = array(
                self::DATASERIES_TYPE_STRING,
                self::DATASERIES_TYPE_NUMBER,
        );

        private $_dataType = null;

        private $_dataSource = null;

        private $_formatCode = null;

        private $_marker = null;

        private $_pointCount = 0;

        private $_dataValues = array();

        public function __construct($dataType = self::DATASERIES_TYPE_NUMBER, $dataSource = null, $formatCode = null, $pointCount = 0, $dataValues = array(), $marker = null)
        {
                $this->setDataType($dataType);
                $this->_dataSource = $dataSource;
                $this->_formatCode = $formatCode;
                $this->_pointCount = $pointCount;
                $this->_dataValues = $dataValues;
                $this->_marker = $marker;
        }

        public function getDataType() {
                return $this->_dataType;
        }

        public function setDataType($dataType = self::DATASERIES_TYPE_NUMBER) {
                if (!in_array($dataType, self::$_dataTypeValues)) {
                throw new PHPExcel_Chart_Exception('Invalid datatype for chart data series values');
                }
                $this->_dataType = $dataType;

                return $this;
        }

        public function getDataSource() {
                return $this->_dataSource;
        }

        public function setDataSource($dataSource = null, $refreshDataValues = true) {
                $this->_dataSource = $dataSource;

                if ($refreshDataValues) {
                        //      TO DO
                }

                return $this;
        }

        public function getPointMarker() {
                return $this->_marker;
        }

        public function setPointMarker($marker = null) {
                $this->_marker = $marker;

                return $this;
        }

        public function getFormatCode() {
                return $this->_formatCode;
        }

        public function setFormatCode($formatCode = null) {
                $this->_formatCode = $formatCode;

                return $this;
        }

        public function getPointCount() {
                return $this->_pointCount;
        }

        public function isMultiLevelSeries() {
                if (count($this->_dataValues) > 0) {
                        return is_array($this->_dataValues[0]);
                }
                return null;
        }

        public function multiLevelCount() {
                $levelCount = 0;
                foreach($this->_dataValues as $dataValueSet) {
                        $levelCount = max($levelCount,count($dataValueSet));
                }
                return $levelCount;
        }

        public function getDataValues() {
                return $this->_dataValues;
        }

        public function getDataValue() {
                $count = count($this->_dataValues);
                if ($count == 0) {
                        return null;
                } elseif ($count == 1) {
                        return $this->_dataValues[0];
                }
                return $this->_dataValues;
        }

        public function setDataValues($dataValues = array(), $refreshDataSource = TRUE) {
                $this->_dataValues = PHPExcel_Calculation_Functions::flattenArray($dataValues);
                $this->_pointCount = count($dataValues);

                if ($refreshDataSource) {
                        //      TO DO
                }

                return $this;
        }

        private function _stripNulls($var) {
                return $var !== NULL;
        }

        public function refresh(PHPExcel_Worksheet $worksheet, $flatten = TRUE) {
        if ($this->_dataSource !== NULL) {
                $calcEngine = PHPExcel_Calculation::getInstance($worksheet->getParent());
                        $newDataValues = PHPExcel_Calculation::_unwrapResult(
                            $calcEngine->_calculateFormulaValue(
                                '='.$this->_dataSource,
                                NULL,
                                $worksheet->getCell('A1')
                            )
                        );
                        if ($flatten) {
                                $this->_dataValues = PHPExcel_Calculation_Functions::flattenArray($newDataValues);
                                foreach($this->_dataValues as &$dataValue) {
                                        if ((!empty($dataValue)) && ($dataValue[0] == '#')) {
                                                $dataValue = 0.0;
                                        }
                                }
                                unset($dataValue);
                        } else {
                                $cellRange = explode('!',$this->_dataSource);
                                if (count($cellRange) > 1) {
                                        list(,$cellRange) = $cellRange;
                                }

                                $dimensions = PHPExcel_Cell::rangeDimension(str_replace('$','',$cellRange));
                                if (($dimensions[0] == 1) || ($dimensions[1] == 1)) {
                                        $this->_dataValues = PHPExcel_Calculation_Functions::flattenArray($newDataValues);
                                } else {
                                        $newArray = array_values(array_shift($newDataValues));
                                        foreach($newArray as $i => $newDataSet) {
                                                $newArray[$i] = array($newDataSet);
                                        }

                                        foreach($newDataValues as $newDataSet) {
                                                $i = 0;
                                                foreach($newDataSet as $newDataVal) {
                                                        array_unshift($newArray[$i++],$newDataVal);
                                                }
                                        }
                                        $this->_dataValues = $newArray;
                                }
                        }
                        $this->_pointCount = count($this->_dataValues);
                }

        }

}