invoicepdfblock.php

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<?php

class InvoicepdfBlock
{

    protected $_aCache = array();

    protected $_sFont = 'Arial';

    protected function _toCache($sFunc, $aParams)
    {
        $oItem = new stdClass();
        $oItem->sFunc = $sFunc;
        $oItem->aParams = $aParams;
        $this->_aCache[] = $oItem;
    }

    public function run($oPdf)
    {
        foreach ($this->_aCache as $oItem) {
            $sFn = $oItem->sFunc;
            switch (count($oItem->aParams)) {
                case 0:
                    $oPdf->$sFn();
                    break;
                case 1:
                    $oPdf->$sFn($oItem->aParams[0]);
                    break;
                case 2:
                    $oPdf->$sFn($oItem->aParams[0], $oItem->aParams[1]);
                    break;
                case 3:
                    $oPdf->$sFn($oItem->aParams[0], $oItem->aParams[1], $oItem->aParams[2]);
                    break;
                case 4:
                    $oPdf->$sFn($oItem->aParams[0], $oItem->aParams[1], $oItem->aParams[2], $oItem->aParams[3]);
                    break;
            }
        }
    }

    public function line($iLPos, $iLHeight, $iRPos, $iRHeight)
    {
        $this->_toCache('Line', array($iLPos, $iLHeight, $iRPos, $iRHeight));
    }

    public function text($iLPos, $iLHeight, $sString)
    {
        $this->_toCache('Text', array($iLPos, $iLHeight, $sString));
    }

    public function font($sType, $sWeight, $sSize)
    {
        $this->_toCache('SetFont', array($sType, $sWeight, $sSize));
    }

    public function ajustHeight($iDelta)
    {
        foreach ($this->_aCache as $key => $oItem) {
            switch ($oItem->sFunc) {
                case 'Line':
                    $this->_aCache[$key]->aParams[3] += $iDelta;
                    $this->_aCache[$key]->aParams[1] += $iDelta;
                    break;
                case 'Text':
                    $this->_aCache[$key]->aParams[1] += $iDelta;
                    break;
            }
        }
    }

    public function getFont()
    {
        return $this->_sFont;
    }
}