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Как самому писать такие большие классы без ошибок? Здесь приведена только маленькая часть кода. У вас есть какаето система в этом деле?  | Код |
if(!class_exists('FPDF'))
{
define('FPDF_VERSION','1.53');
class FPDF
{
//Private properties
var $page; //current page number
var $n; //current object number
var $offsets; //array of object offsets
var $buffer; //buffer holding in-memory PDF
var $pages; //array containing pages
var $state; //current document state
var $compress; //compression flag
var $DefOrientation; //default orientation
var $CurOrientation; //current orientation
var $OrientationChanges; //array indicating orientation changes
var $k; //scale factor (number of points in user unit)
var $fwPt,$fhPt; //dimensions of page format in points
var $fw,$fh; //dimensions of page format in user unit
var $wPt,$hPt; //current dimensions of page in points
var $w,$h; //current dimensions of page in user unit
var $lMargin; //left margin
var $tMargin; //top margin
var $rMargin; //right margin
var $bMargin; //page break margin
var $cMargin; //cell margin
var $x,$y; //current position in user unit for cell positioning
var $lasth; //height of last cell printed
var $LineWidth; //line width in user unit
var $CoreFonts; //array of standard font names
var $fonts; //array of used fonts
var $FontFiles; //array of font files
var $diffs; //array of encoding differences
var $images; //array of used images
var $PageLinks; //array of links in pages
var $links; //array of internal links
var $FontFamily; //current font family
var $FontStyle; //current font style
var $underline; //underlining flag
var $CurrentFont; //current font info
var $FontSizePt; //current font size in points
var $FontSize; //current font size in user unit
var $DrawColor; //commands for drawing color
var $FillColor; //commands for filling color
var $TextColor; //commands for text color
var $ColorFlag; //indicates whether fill and text colors are different
var $ws; //word spacing
var $AutoPageBreak; //automatic page breaking
var $PageBreakTrigger; //threshold used to trigger page breaks
var $InFooter; //flag set when processing footer
var $ZoomMode; //zoom display mode
var $LayoutMode; //layout display mode
var $title; //title
var $subject; //subject
var $author; //author
var $keywords; //keywords
var $creator; //creator
var $AliasNbPages; //alias for total number of pages
var $PDFVersion; //PDF version number
/*******************************************************************************
* *
* Public methods *
* *
*******************************************************************************/
function FPDF($orientation='P',$unit='mm',$format='A4')
{
//Some checks
$this->_dochecks();
//Initialization of properties
$this->page=0;
$this->n=2;
$this->buffer='';
$this->pages=array();
$this->OrientationChanges=array();
$this->state=0;
$this->fonts=array();
$this->FontFiles=array();
$this->diffs=array();
$this->images=array();
$this->links=array();
$this->InFooter=false;
$this->lasth=0;
$this->FontFamily='';
$this->FontStyle='';
$this->FontSizePt=12;
$this->underline=false;
$this->DrawColor='0 G';
$this->FillColor='0 g';
$this->TextColor='0 g';
$this->ColorFlag=false;
$this->ws=0;
//Standard fonts
$this->CoreFonts=array('courier'=>'Courier','courierB'=>'Courier-Bold','courierI'=>'Courier-Oblique','courierBI'=>'Courier-BoldOblique',
'helvetica'=>'Helvetica','helveticaB'=>'Helvetica-Bold','helveticaI'=>'Helvetica-Oblique','helveticaBI'=>'Helvetica-BoldOblique',
'times'=>'Times-Roman','timesB'=>'Times-Bold','timesI'=>'Times-Italic','timesBI'=>'Times-BoldItalic',
'symbol'=>'Symbol','zapfdingbats'=>'ZapfDingbats');
//Scale factor
if($unit=='pt')
$this->k=1;
elseif($unit=='mm')
$this->k=72/25.4;
elseif($unit=='cm')
$this->k=72/2.54;
elseif($unit=='in')
$this->k=72;
else
$this->Error('Incorrect unit: '.$unit);
//Page format
if(is_string($format))
{
$format=strtolower($format);
if($format=='a3')
$format=array(841.89,1190.55);
elseif($format=='a4')
$format=array(595.28,841.89);
elseif($format=='a5')
$format=array(420.94,595.28);
elseif($format=='letter')
$format=array(612,792);
elseif($format=='legal')
$format=array(612,1008);
else
$this->Error('Unknown page format: '.$format);
$this->fwPt=$format[0];
$this->fhPt=$format[1];
}
else
{
$this->fwPt=$format[0]*$this->k;
$this->fhPt=$format[1]*$this->k;
}
$this->fw=$this->fwPt/$this->k;
$this->fh=$this->fhPt/$this->k;
//Page orientation
$orientation=strtolower($orientation);
if($orientation=='p' || $orientation=='portrait')
{
$this->DefOrientation='P';
$this->wPt=$this->fwPt;
$this->hPt=$this->fhPt;
}
elseif($orientation=='l' || $orientation=='landscape')
{
$this->DefOrientation='L';
$this->wPt=$this->fhPt;
$this->hPt=$this->fwPt;
}
else
$this->Error('Incorrect orientation: '.$orientation);
$this->CurOrientation=$this->DefOrientation;
$this->w=$this->wPt/$this->k;
$this->h=$this->hPt/$this->k;
//Page margins (1 cm)
$margin=28.35/$this->k;
$this->SetMargins($margin,$margin);
//Interior cell margin (1 mm)
$this->cMargin=$margin/10;
//Line width (0.2 mm)
$this->LineWidth=.567/$this->k;
//Automatic page break
$this->SetAutoPageBreak(true,2*$margin);
//Full width display mode
$this->SetDisplayMode('fullwidth');
//Enable compression
$this->SetCompression(true);
//Set default PDF version number
$this->PDFVersion='1.3';
}
function SetMargins($left,$top,$right=-1)
{
//Set left, top and right margins
$this->lMargin=$left;
$this->tMargin=$top;
if($right==-1)
$right=$left;
$this->rMargin=$right;
}
function SetLeftMargin($margin)
{
//Set left margin
$this->lMargin=$margin;
if($this->page>0 && $this->x<$margin)
$this->x=$margin;
}
function SetTopMargin($margin)
{
//Set top margin
$this->tMargin=$margin;
}
function SetRightMargin($margin)
{
//Set right margin
$this->rMargin=$margin;
}
function SetAutoPageBreak($auto,$margin=0)
{
//Set auto page break mode and triggering margin
$this->AutoPageBreak=$auto;
$this->bMargin=$margin;
$this->PageBreakTrigger=$this->h-$margin;
}
function SetDisplayMode($zoom,$layout='continuous')
{
//Set display mode in viewer
if($zoom=='fullpage' || $zoom=='fullwidth' || $zoom=='real' || $zoom=='default' || !is_string($zoom))
$this->ZoomMode=$zoom;
else
$this->Error('Incorrect zoom display mode: '.$zoom);
if($layout=='single' || $layout=='continuous' || $layout=='two' || $layout=='default')
$this->LayoutMode=$layout;
else
$this->Error('Incorrect layout display mode: '.$layout);
}
function SetCompression($compress)
{
//Set page compression
if(function_exists('gzcompress'))
$this->compress=$compress;
else
$this->compress=false;
}
function SetTitle($title)
{
//Title of document
$this->title=$title;
}
function SetSubject($subject)
{
//Subject of document
$this->subject=$subject;
}
function SetAuthor($author)
{
//Author of document
$this->author=$author;
}
function SetKeywords($keywords)
{
//Keywords of document
$this->keywords=$keywords;
}
function SetCreator($creator)
{
//Creator of document
$this->creator=$creator;
}
function AliasNbPages($alias='{nb}')
{
//Define an alias for total number of pages
$this->AliasNbPages=$alias;
}
function Error($msg)
{
//Fatal error
die('<B>FPDF error: </B>'.$msg);
}
function Open()
{
//Begin document
$this->state=1;
}
function Close()
{
//Terminate document
if($this->state==3)
return;
if($this->page==0)
$this->AddPage();
//Page footer
$this->InFooter=true;
$this->Footer();
$this->InFooter=false;
//Close page
$this->_endpage();
//Close document
$this->_enddoc();
}
function AddPage($orientation='')
{
//Start a new page
if($this->state==0)
$this->Open();
$family=$this->FontFamily;
$style=$this->FontStyle.($this->underline ? 'U' : '');
$size=$this->FontSizePt;
$lw=$this->LineWidth;
$dc=$this->DrawColor;
$fc=$this->FillColor;
$tc=$this->TextColor;
$cf=$this->ColorFlag;
if($this->page>0)
{
//Page footer
$this->InFooter=true;
$this->Footer();
$this->InFooter=false;
//Close page
$this->_endpage();
}
//Start new page
$this->_beginpage($orientation);
//Set line cap style to square
$this->_out('2 J');
//Set line width
$this->LineWidth=$lw;
$this->_out(sprintf('%.2f w',$lw*$this->k));
//Set font
if($family)
$this->SetFont($family,$style,$size);
//Set colors
$this->DrawColor=$dc;
if($dc!='0 G')
$this->_out($dc);
$this->FillColor=$fc;
if($fc!='0 g')
$this->_out($fc);
$this->TextColor=$tc;
$this->ColorFlag=$cf;
//Page header
$this->Header();
//Restore line width
if($this->LineWidth!=$lw)
{
$this->LineWidth=$lw;
$this->_out(sprintf('%.2f w',$lw*$this->k));
}
//Restore font
if($family)
$this->SetFont($family,$style,$size);
//Restore colors
if($this->DrawColor!=$dc)
{
$this->DrawColor=$dc;
$this->_out($dc);
}
if($this->FillColor!=$fc)
{
$this->FillColor=$fc;
$this->_out($fc);
}
$this->TextColor=$tc;
$this->ColorFlag=$cf;
}
function Header()
{
//To be implemented in your own inherited class
}
function Footer()
{
//To be implemented in your own inherited class
}
function PageNo()
{
//Get current page number
return $this->page;
}
function SetDrawColor($r,$g=-1,$b=-1)
{
//Set color for all stroking operations
if(($r==0 && $g==0 && $b==0) || $g==-1)
$this->DrawColor=sprintf('%.3f G',$r/255);
else
$this->DrawColor=sprintf('%.3f %.3f %.3f RG',$r/255,$g/255,$b/255);
if($this->page>0)
$this->_out($this->DrawColor);
}
function SetFillColor($r,$g=-1,$b=-1)
{
//Set color for all filling operations
if(($r==0 && $g==0 && $b==0) || $g==-1)
$this->FillColor=sprintf('%.3f g',$r/255);
else
$this->FillColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
$this->ColorFlag=($this->FillColor!=$this->TextColor);
if($this->page>0)
$this->_out($this->FillColor);
}
function SetTextColor($r,$g=-1,$b=-1)
{
//Set color for text
if(($r==0 && $g==0 && $b==0) || $g==-1)
$this->TextColor=sprintf('%.3f g',$r/255);
else
$this->TextColor=sprintf('%.3f %.3f %.3f rg',$r/255,$g/255,$b/255);
$this->ColorFlag=($this->FillColor!=$this->TextColor);
}
function GetStringWidth($s)
{
//Get width of a string in the current font
$s=(string)$s;
$cw=&$this->CurrentFont['cw'];
$w=0;
$l=strlen($s);
for($i=0;$i<$l;$i++)
$w+=$cw[$s{$i}];
return $w*$this->FontSize/1000;
}
function SetLineWidth($width)
{
//Set line width
$this->LineWidth=$width;
if($this->page>0)
$this->_out(sprintf('%.2f w',$width*$this->k));
}
function Line($x1,$y1,$x2,$y2)
{
//Draw a line
$this->_out(sprintf('%.2f %.2f m %.2f %.2f l S',$x1*$this->k,($this->h-$y1)*$this->k,$x2*$this->k,($this->h-$y2)*$this->k));
}
function Rect($x,$y,$w,$h,$style='')
{
//Draw a rectangle
if($style=='F')
$op='f';
elseif($style=='FD' || $style=='DF')
$op='B';
else
$op='S';
$this->_out(sprintf('%.2f %.2f %.2f %.2f re %s',$x*$this->k,($this->h-$y)*$this->k,$w*$this->k,-$h*$this->k,$op));
}
function AddFont($family,$style='',$file='')
{
//Add a TrueType or Type1 font
$family=strtolower($family);
if($file=='')
$file=str_replace(' ','',$family).strtolower($style).'.php';
if($family=='arial')
$family='helvetica';
$style=strtoupper($style);
if($style=='IB')
$style='BI';
$fontkey=$family.$style;
if(isset($this->fonts[$fontkey]))
$this->Error('Font already added: '.$family.' '.$style);
include($this->_getfontpath().$file);
if(!isset($name))
$this->Error('Could not include font definition file');
$i=count($this->fonts)+1;
$this->fonts[$fontkey]=array('i'=>$i,'type'=>$type,'name'=>$name,'desc'=>$desc,'up'=>$up,'ut'=>$ut,'cw'=>$cw,'enc'=>$enc,'file'=>$file);
if($diff)
{
//Search existing encodings
$d=0;
$nb=count($this->diffs);
for($i=1;$i<=$nb;$i++)
{
if($this->diffs[$i]==$diff)
{
$d=$i;
break;
}
}
if($d==0)
{
$d=$nb+1;
$this->diffs[$d]=$diff;
}
$this->fonts[$fontkey]['diff']=$d;
}
if($file)
{
if($type=='TrueType')
$this->FontFiles[$file]=array('length1'=>$originalsize);
else
$this->FontFiles[$file]=array('length1'=>$size1,'length2'=>$size2);
}
}
function SetFont($family,$style='',$size=0)
{
//Select a font; size given in points
global $fpdf_charwidths;
$family=strtolower($family);
if($family=='')
$family=$this->FontFamily;
if($family=='arial')
$family='helvetica';
elseif($family=='symbol' || $family=='zapfdingbats')
$style='';
$style=strtoupper($style);
if(strpos($style,'U')!==false)
{
$this->underline=true;
$style=str_replace('U','',$style);
}
else
$this->underline=false;
if($style=='IB')
$style='BI';
if($size==0)
$size=$this->FontSizePt;
//Test if font is already selected
if($this->FontFamily==$family && $this->FontStyle==$style && $this->FontSizePt==$size)
return;
//Test if used for the first time
$fontkey=$family.$style;
if(!isset($this->fonts[$fontkey]))
{
//Check if one of the standard fonts
if(isset($this->CoreFonts[$fontkey]))
{
if(!isset($fpdf_charwidths[$fontkey]))
{
//Load metric file
$file=$family;
if($family=='times' || $family=='helvetica')
$file.=strtolower($style);
include($this->_getfontpath().$file.'.php');
if(!isset($fpdf_charwidths[$fontkey]))
$this->Error('Could not include font metric file');
}
$i=count($this->fonts)+1;
$this->fonts[$fontkey]=array('i'=>$i,'type'=>'core','name'=>$this->CoreFonts[$fontkey],'up'=>-100,'ut'=>50,'cw'=>$fpdf_charwidths[$fontkey]);
}
else
$this->Error('Undefined font: '.$family.' '.$style);
}
//Select it
$this->FontFamily=$family;
$this->FontStyle=$style;
$this->FontSizePt=$size;
$this->FontSize=$size/$this->k;
$this->CurrentFont=&$this->fonts[$fontkey];
if($this->page>0)
$this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}
function SetFontSize($size)
{
//Set font size in points
if($this->FontSizePt==$size)
return;
$this->FontSizePt=$size;
$this->FontSize=$size/$this->k;
if($this->page>0)
$this->_out(sprintf('BT /F%d %.2f Tf ET',$this->CurrentFont['i'],$this->FontSizePt));
}
function AddLink()
{
//Create a new internal link
$n=count($this->links)+1;
$this->links[$n]=array(0,0);
return $n;
}
function SetLink($link,$y=0,$page=-1)
{
//Set destination of internal link
if($y==-1)
$y=$this->y;
if($page==-1)
$page=$this->page;
$this->links[$link]=array($page,$y);
}
function Link($x,$y,$w,$h,$link)
{
//Put a link on the page
$this->PageLinks[$this->page][]=array($x*$this->k,$this->hPt-$y*$this->k,$w*$this->k,$h*$this->k,$link);
}
function Text($x,$y,$txt)
{
//Output a string
$s=sprintf('BT %.2f %.2f Td (%s) Tj ET',$x*$this->k,($this->h-$y)*$this->k,$this->_escape($txt));
if($this->underline && $txt!='')
$s.=' '.$this->_dounderline($x,$y,$txt);
if($this->ColorFlag)
$s='q '.$this->TextColor.' '.$s.' Q';
$this->_out($s);
}
function AcceptPageBreak()
{
//Accept automatic page break or not
return $this->AutoPageBreak;
}
?>
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Class PDF 
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Дата 28.8.2010, 13:57 (
