class.PDF.php

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<?php
/**
 * wCMF - wemove Content Management Framework
 * Copyright (C) 2005-2014 wemove digital solutions GmbH
 *
 * Licensed under the terms of any of the following licenses 
 * at your choice:
 *
 * - GNU Lesser General Public License (LGPL)
 *   http://www.gnu.org/licenses/lgpl.html
 * - Eclipse Public License (EPL)
 *   http://www.eclipse.org/org/documents/epl-v10.php
 *
 * See the license.txt file distributed with this work for 
 * additional information.
 *
 * $Id: class.PDF.php 1462 2014-02-04 23:52:27Z iherwig $
 */
require_once(BASE."wcmf/3rdparty/fpdf/fpdi.php");
require_once(BASE."wcmf/lib/util/class.Message.php");

/**
 * @class PDF
 * @ingroup Output
 * @brief PDF extends FPDF/FPDI.
 *
 * @author      ingo herwig <ingo@wemove.com>
 */
class PDF extends FPDI
{
  var $_pageStarted = false;
  var $_pageEnded = false;
  
  /**
   * Overriden to set the template on the page
   */
  function Header()
  {
    parent::Header();
    $this->useTemplate($this->tpl);
  }
  /**
   * Call this method when rendering a new page
   */
    function startPage()
  {
    $this->_pageStarted = true; 
    $this->_pageEnded = false;
  }
  /**
   * Call this method when rendering a page finished
   */
  function endPage()
  {
    $this->_pageEnded = true;
    $this->_pageStarted = false;
  }
  /**
   * Determine if a new page started
   * @return True/False
   */
  function isPageStarted()
  {
    return $this->_pageStarted; 
  }
  /**
   * Determine if a page finished
   * @return True/False
   */
  function isPageEnded()
  {
    return $this->_pageEnded; 
  }
  /**
   * Move the render position down by given units
   * @param units The number of units to move
   */
  function moveDown($units)
  {
    $this->SetY($units+$this->GetY()); 
  }
  /**
   * Move the render position right by given units
   * @param units The number of units to move
   */
  function moveRight($units)
  {
    $this->SetX($units+$this->GetX());
  }
  /**
   * Computes the number of lines a MultiCell of width w will take
   * instead of NbLines it correctly handles linebreaks
   * @param width The width
   * @param text The text
   */
  function numberOfLines($width, $text)
  {
    $nbLines = 0;
    $lines = split("\n", $text);
    foreach ($lines as $line)
      $nbLines += $this->NbLines($width, $line);
    return $nbLines;
  }
  
  /**
   * The following code is taken from FPDF Add-On 'Table with MultiCells' 
   * @see http://www.fpdf.de/downloads/addons/3/
   */ 
   
  /**
   * If the height h would cause an overflow, add a new page immediately
   * @param h The height
   * @return True/False wether a new page was inserted or not
   */
  function CheckPageBreak($h)
  {
        if($this->GetY()+$h>$this->PageBreakTrigger)
    {
      $this->AddPage($this->CurOrientation);
      return true;
    }
    return false;
  }
  /**
   * Computes the number of lines a MultiCell of width w will take
   * @param w The width
   * @param txt The text
   */
  function NbLines($w, $txt)
  {
        $cw=&$this->CurrentFont['cw'];
        if($w==0)
                $w=$this->w-$this->rMargin-$this->x;
        $wmax=($w-2*$this->cMargin)*1000/$this->FontSize;
        $s=str_replace("\r",'',$txt);
        $nb=strlen($s);
        if($nb>0 and $s[$nb-1]=="\n")
                $nb--;
        $sep=-1;
        $i=0;
        $j=0;
        $l=0;
        $nl=1;
        while($i<$nb)
        {
                $c=$s[$i];
                if($c=="\n")
                {
                        $i++;
                        $sep=-1;
                        $j=$i;
                        $l=0;
                        $nl++;
                        continue;
                }
                if($c==' ')
                        $sep=$i;
                $l+=$cw[$c];
                if($l>$wmax)
                {
                        if($sep==-1)
                        {
                                if($i==$j)
                                        $i++;
                        }
                        else
                                $i=$sep+1;
                        $sep=-1;
                        $j=$i;
                        $l=0;
                        $nl++;
                }
                else
                        $i++;
        }
        return $nl;
  }
}
?>