研究员我有一个问题是使用TCPDF打印页眉和页脚。
打印pdf的类是：
class MyPdf extends Pdf
{
private $eventid=null;
function __construct($event_id,$config=null)
{
parent::__construct($config);
$this->eventid=$event_id;
}
function Header()
{
if($this->eventid!==null)
{
$this->SetFont('dejavusans','',8);
$this->Cell(0,9,'eventid: '.$this->eventid);
$this->Ln();
}
}
function Footer()
{
$this->setY(-20);
$x=$this->getX();
$y=$this->getY();
$this->Cell(0,9,'Powered By Ecampole.com INC ',0,0,'C');
$this->setXY($x,$y);
$this->Cell(0,9,$this->PageNo(),0,0,'R');
$this->Ln(1);
}
}
PDF库：
require_once('/usr/share/php/tcpdf/tcpdf_import.php');
define('FA_PATH',previous_dir(APPPATH).'assets/vendor/awesome/fonts/');
class Pdf extends TCPDF
{
//private $fa=null;
private $faPath='fontawesomewebfont';
/**
*@param $params {Array} Parameters fo the Library.
* It must have the following:
* *)orientation: 'P' for portrait 'L' for landscape by default is 'L'
* *)unit: 'pt' for points please google and look for more options in this parameter
* *)page: The type of page you want eg. A4, A3 etc etc.
*/
public function __construct($params)
{
$orientation= isset($params['orientation'])?$params['orientation']:'P';//By default portrait landscaping
$unit=isset($params['unit'])?$params['unit']:'pt';
$page=isset($params['page'])?$params['page']:'A4';
parent::__construct($orientation,$unit,$page,true, 'UTF-8', false);
$ci=&get_instance();
$ci->load->helper('path');
//$fa=(isset($params['fa']) && file_exists($params['fa']))?$params['fa']:FA_PATH.'fontawesome-webfont.ttf';
//$this->fa=$this->addTTFfont($fa,'TrueTypeUnicode', '', 32,FA_PATH);
//$this->addFont('fontawesomewebfont','',FA_PATH.'fontawesomewebfont');
//$this->faPath='fontawesomewebfont';
/*Font setting in order to show UTF-8*/
//$this->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
//$this->setFontSubsetting(true);
}
/*public function getFontAwesome()
{
return $this->fa;
}*/
public function getFontAwesome2()
{
return $this->faPath;
}
public function getHeight()
{
return $this->h;
}
public function getWidth()
{
return $this->w;
}
public function bMargin_()
{
return $this->bMargin;
}
/**
*We declare it as blank function because by defauld it renders an unwanted black line
*/
public function Header()
{
}
/**
*We declare it as blank function because by defauld it renders an unwanted black line
*/
public function Footer()
{
$CI= & get_instance();
$CI->load->helper('url');
$this->setY(-15);
$this->SetFont('dejavusans','',8);
$x=$this->getX();
$y=$this->getY();
$text_size=$this->GetStringWidth('Powered By Example.com INC');
$this->Cell(0,9,'Powered By Example.com INC',0,0,'C');
$imagex=$this->getWidth()/2+$text_size/2+1;
$image=base_url('assets/img/squirrel.png');
$this->Image($image,$imagex,$y,10,8,'PNG');
}
/**
*Calculate How much height we have
*/
public function spaceleft_()
{
return $this->getHeight() - $this->GetY() - $this->bMargin_();
}
/**
*It auto breaks the page if remaining space
*is less that $bias*total_height of the page
*
*@param $bias {Float} A floating number betrween 0 and 1.
* 0 equals for 0% 1 equals for 100%
* eg. 0.4 equals 40% of the total height
*/
public function magic_break($bias=0.4)
{
$height=$bias*$this->getHeight();
if($this->spaceleft_()<$height)
{
$this->addPage();
}
}
/**
*Sets The Draw Color Back to Black
*/
public function resetDrawColor()
{
$this->SetDrawColor(0, 0, 0);
}
/**
*Sets The fill Color Back to White
*/
public function resetFillColor()
{
$this->setFillColor(255, 255, 255);
}
/**
*Calculate the image size from pixels to points
*@param $image {String} The url or the path of the image
*@param $bias {Int} A scale factor for the image if 0 it does not scale the image.
*@return {Array} With the $width and $height of the Image
*/
public function image_size($image,$bias=4)
{
list($image_width,$image_height)=getimagesize($image);
$image_width=$image_width*0.75;
$image_height=$image_height*0.75;
if($bias!==0)
{
$image_width/=$bias;
$image_height/=$bias;
}
return array($image_width,$image_height);
}
/**
*Converts the image width and image Height to points
*@param $image_width {Int} The width of the Image in pixels
*@param $image_height {Int} The height of the image in pixels
*@param $bias {Int} A scale factor for the image if 0 it does not scale the image.
*@return {Array} With the $width and $height of the Image
*/
public function fix_size($image_width,$image_height,$bias=0)
{
$image_width=$image_width*0.75;
$image_height=$image_height*0.75;
if($bias!==0)
{
$image_width/=$bias;
$image_height/=$bias;
}
return array($image_width,$image_height);
}
}
绘制Pdf的代码是：
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
//define("_SYSTEM_TTFONTS",APPPATH.'/libraries/font/unifont');
error_reporting(E_ERROR | E_PARSE);
define('TOP_MARGIN',30);
define('SIDE_MARGIN',5);
/**
* Class for Setting The Header and Footer
*/
class MyPdf extends Pdf
{
private $eventid=null;
function __construct($event_id,$config=null)
{
parent::__construct($config);
$this->eventid=$event_id;
}
function Header()
{
if($this->eventid!==null)
{
$this->SetFont('dejavusans','',8);
$this->Cell(0,9,'eventid: '.$this->eventid);
$this->Ln();
}
}
function Footer()
{
$this->setY(-20);
$x=$this->getX();
$y=$this->getY();
$this->Cell(0,9,'Powered By Conferience',0,0,'C');
$this->setXY($x,$y);
$this->Cell(0,9,$this->PageNo(),0,0,'R');
$this->Ln(1);
}
}
$pdf new MyPdf($data['header']);
$pdf->SetAuthor($owner,true);
$pdf->SetCreator('Example.com INC',true);
$pdf->SetTitle($title,true);
$pdf->SetMargins(SIDE_MARGIN,TOP_MARGIN,SIDE_MARGIN);
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
$pdf->setFontSubsetting(true);
/* Add the first Page */
$pdf->AddPage();
/*####################### Size Metrics ###########################*/
$remaining=$pdf->getHeight()-28-18-TOP_MARGIN;
$available_width=$pdf->getWidth()-SIDE_MARGIN-SIDE_MARGIN;
//Calculate the hald Width
$available_width_half=$available_width/2;
//Bootstap like Grid set the Column Size
$columns=($available_width)/12;
?>
但是出于某种原因，在Linux上的evincew显示了页眉和页脚，而Windows上的Firefox和Adobe 9.0 Professional则没有显示它们。 Firefox也没有显示页脚。
你知道为什么会这样吗？
答案 0 :(得分：-1)
TCPDF有自己的处理页眉和页脚的功能。您可以轻松使用TCPDF::setHeaderData()和TCPDF::setFooterData()。