This is a PHP4 class for generating PDF files on-the-fly without requiring external extensions.
This class is an extension and improvement of the FPDF class by Olivier Plathey (http://www.fpdf.org).
This version contains some changes: [porting to PHP4, support for UTF-8 Unicode, code style and formatting, php documentation (www.phpdoc.org), ISO page formats, minor improvements, image scale factor]
TCPDF project (http://tcpdf.sourceforge.net) is based on the public Domain FPDF class by Olivier Plathey (http://www.fpdf.org).
To add your own TTF fonts please read /fonts/README.TXT
Located in /tcpdf.php (line 87)
This is the class constructor.
It allows to set up the page format, the orientation and the measure unit used in all the methods (except for the font sizes).
Whenever a page break condition is met, the method is called, and the break is issued or not depending on the returned value. The default implementation returns a value according to the mode selected by SetAutoPageBreak().
This method is called automatically and should not be called directly by the application.
Example:
The method is overriden in an inherited class in order to obtain a 3 column layout:
class PDF extends TCPDF {
var $col=0;
function SetCol($col) {
//Move position to a column
$this->col=$col;
$x=10+$col*65;
$this->SetLeftMargin($x);
$this->SetX($x);
}
function AcceptPageBreak() {
if($this->col<2) {
//Go to next column
$this->SetCol($this->col+1);
$this->SetY(10);
return false;
}
else {
//Go back to first column and issue page break
$this->SetCol(0);
return true;
}
}
}
$pdf=new PDF();
$pdf->Open();
$pdf->AddPage();
$pdf->SetFont('Arial','',12);
for($i=1;$i<=300;$i++) {
$pdf->Cell(0,5,"Line $i",0,1);
}
$pdf->Output();
Imports a TrueType or Type1 font and makes it available. It is necessary to generate a font definition file first with the makefont.php utility. The definition file (and the font file itself when embedding) must be present either in the current directory or in the one indicated by FPDF_FONTPATH if the constant is defined. If it could not be found, the error "Could not include font definition file" is generated.
Support UTF-8 Unicode [Nicola Asuni, 2005-01-02]. Example:
$pdf->AddFont('Comic','I');
// is equivalent to:
$pdf->AddFont('Comic','I','comici.php');
Output anchor link.
Creates a new internal link and returns its identifier. An internal link is a clickable area which directs to another place within the document.
The identifier can then be passed to Cell(), Write(), Image() or Link(). The destination is defined with SetLink().
Adds a new page to the document. If a page is already present, the Footer() method is called first to output the footer. Then the page is added, the current position set to the top-left corner according to the left and top margins, and Header() is called to display the header.
The font which was set before calling is automatically restored. There is no need to call SetFont() again if you want to continue with the same font. The same is true for colors and line width. The origin of the coordinate system is at the top-left corner and increasing ordinates go downwards.
Defines an alias for the total number of pages. It will be substituted as the document is closed.
Example:
class PDF extends TCPDF {
function Footer() {
//Go to 1.5 cm from bottom
$this->SetY(-15);
//Select Arial italic 8
$this->SetFont('Arial','I',8);
//Print current and total page numbers
$this->Cell(0,10,'Page '.$this->PageNo().'/{nb}',0,0,'C');
}
}
$pdf=new PDF();
$pdf->AliasNbPages();
Prints a cell (rectangular area) with optional borders, background color and character string. The upper-left corner of the cell corresponds to the current position. The text can be aligned or centered. After the call, the current position moves to the right or to the next line. It is possible to put a link on the text.
If automatic page breaking is enabled and the cell goes beyond the limit, a page break is done before outputting.
Terminates the PDF document. It is not necessary to call this method explicitly because Output() does it automatically. If the document contains no page, AddPage() is called to prevent from getting an invalid document.
Process closing tags.
Returns an associative array (keys: R,G,B) from a hex html code (e.g. #3FE5AA).
This method is automatically called in case of fatal error; it simply outputs the message and halts the execution. An inherited class may override it to customize the error handling but should always halt the script, or the resulting document would probably be invalid.
2004-06-11 :: Nicola Asuni : changed bold tag with strong
This method is used to render the page footer.
It is automatically called by AddPage() and could be overwritten in your own inherited class.
Returns the page break margin.
Returns the image scale.
Returns the page height in units.
Returns the page width in units.
Returns the PDF data.
Returns the scale factor (number of points in user unit).
Returns the length of a string in user unit. A font must be selected.
Support UTF-8 Unicode [Nicola Asuni, 2005-01-02]
Returns the abscissa of the current position.
Returns the ordinate of the current position.
This method is used to render the page header.
It is automatically called by AddPage() and could be overwritten in your own inherited class.
Puts an image in the page. The upper-left corner must be given. The dimensions can be specified in different ways:
For JPEG, all flavors are allowed:
Draws a line between two points.
Puts a link on a rectangular area of the page. Text or image links are generally put via Cell(), Write() or Image(), but this method can be useful for instance to define a clickable area inside an image.
Performs a line break. The current abscissa goes back to the left margin and the ordinate increases by the amount passed in parameter.
This method allows printing text with line breaks. They can be automatic (as soon as the text reaches the right border of the cell) or explicit (via the \n character). As many cells as necessary are output, one below the other.
Text can be aligned, centered or justified. The cell block can be framed and the background painted.
This method begins the generation of the PDF document. It is not necessary to call it explicitly because AddPage() does it automatically.
Note: no page is created by this method
Process opening tags.
Send the document to a given destination: string, local file or browser. In the last case, the plug-in may be used (if present) or a download ("Save as" dialog box) may be forced.
The method first calls Close() if necessary to terminate the document.
Returns the current page number.
Converts pixels to millimeters in 72 dpi.
Outputs a rectangle. It can be drawn (border only), filled (with no border) or both.
Defines the author of the document.
Enables or disables the automatic page breaking mode. When enabling, the second parameter is the distance from the bottom of the page that defines the triggering limit. By default, the mode is on and the margin is 2 cm.
Set document barcode.
Activates or deactivates page compression. When activated, the internal representation of each page is compressed, which leads to a compression ratio of about 2 for the resulting document. Compression is on by default.
Note: the Zlib extension is required for this feature. If not present, compression will be turned off.
Defines the creator of the document. This is typically the name of the application that generates the PDF.
Defines the way the document is to be displayed by the viewer. The zoom level can be set: pages can be displayed entirely on screen, occupy the full width of the window, use real size, be scaled by a specific zooming factor or use viewer default (configured in the Preferences menu of Acrobat). The page layout can be specified too: single at once, continuous display, two columns or viewer default. By default, documents use the full width mode with continuous display.
Defines the color used for all drawing operations (lines, rectangles and cell borders). It can be expressed in RGB components or gray scale. The method can be called before the first page is created and the value is retained from page to page.
Defines the color used for all filling operations (filled rectangles and cell backgrounds). It can be expressed in RGB components or gray scale. The method can be called before the first page is created and the value is retained from page to page.
Sets the font used to print character strings. It is mandatory to call this method at least once before printing text or the resulting document would not be valid.
The font can be either a standard one or a font added via the AddFont() method. Standard fonts use Windows encoding cp1252 (Western Europe). The method can be called before the first page is created and the font is retained from page to page. Note: for the standard fonts, the font metric files must be accessible. There are three possibilities for this:
define('FPDF_FONTPATH','/home/www/font/');
require('tcpdf.php');
//Times regular 12
$pdf->SetFont('Times');
//Arial bold 14
$pdf->SetFont('Arial','B',14);
//Removes bold
$pdf->SetFont('');
//Times bold, italic and underlined 14
$pdf->SetFont('Times','BIU');Defines the size of the current font.
Set footer font.
Set footer margin.
(minimum distance between footer and bottom page margin)
Set header data.
Set header font.
Set header margin.
(minimum distance between header and top page margin)
Set the image scale.
Associates keywords with the document, generally in the form 'keyword1 keyword2 ...'.
Set language array.
Defines the left margin. The method can be called before creating the first page. If the current abscissa gets out of page, it is brought back to the margin.
Defines the line width. By default, the value equals 0.2 mm. The method can be called before the first page is created and the value is retained from page to page.
Defines the page and position a link points to
Defines the left, top and right margins. By default, they equal 1 cm. Call this method to change them.
Set a flag to print page footer.
Set a flag to print page header.
Defines the right margin. The method can be called before creating the first page.
Sets font style.
Defines the subject of the document.
Defines the color used for text. It can be expressed in RGB components or gray scale. The method can be called before the first page is created and the value is retained from page to page.
Defines the title of the document.
Defines the top margin. The method can be called before creating the first page.
Defines the abscissa of the current position. If the passed value is negative, it is relative to the right of the page.
Defines the abscissa and ordinate of the current position. If the passed values are negative, they are relative respectively to the right and bottom of the page.
Moves the current abscissa back to the left margin and sets the ordinate. If the passed value is negative, it is relative to the bottom of the page.
Prints a character string. The origin is on the left of the first charcter, on the baseline. This method allows to place a string precisely on the page, but it is usually easier to use Cell(), MultiCell() or Write() which are the standard methods to print text.
Reverse function for htmlentities.
Convert entities in UTF-8.
Converts UTF-8 strings to codepoints array.
Invalid byte sequences will be replaced with 0xFFFD (replacement character)
Based on: http://www.faqs.org/rfcs/rfc3629.html
Char. number range | UTF-8 octet sequence
(hexadecimal) | (binary)
--------------------+-----------------------------------------------
0000 0000-0000 007F | 0xxxxxxx
0000 0080-0000 07FF | 110xxxxx 10xxxxxx
0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
---------------------------------------------------------------------
ABFN notation:
---------------------------------------------------------------------
UTF8-octets = *( UTF8-char )
UTF8-char = UTF8-1 / UTF8-2 / UTF8-3 / UTF8-4
UTF8-1 = %x00-7F
UTF8-2 = %xC2-DF UTF8-tail
UTF8-3 = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) /
%xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail )
UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) /
%xF4 %x80-8F 2( UTF8-tail )
UTF8-tail = %x80-BF
---------------------------------------------------------------------
Converts UTF-8 strings to UTF16-BE.
Based on: http://www.faqs.org/rfcs/rfc2781.html
Encoding UTF-16:
Encoding of a single character from an ISO 10646 character value to
UTF-16 proceeds as follows. Let U be the character number, no greater
than 0x10FFFF.
1) If U < 0x10000, encode U as a 16-bit unsigned integer and
terminate.
2) Let U' = U - 0x10000. Because U is less than or equal to 0x10FFFF,
U' must be less than or equal to 0xFFFFF. That is, U' can be
represented in 20 bits.
3) Initialize two 16-bit unsigned integers, W1 and W2, to 0xD800 and
0xDC00, respectively. These integers each have 10 bits free to
encode the character value, for a total of 20 bits.
4) Assign the 10 high-order bits of the 20-bit U' to the 10 low-order
bits of W1 and the 10 low-order bits of U' to the 10 low-order
bits of W2. Terminate.
Graphically, steps 2 through 4 look like:
U' = yyyyyyyyyyxxxxxxxxxx
W1 = 110110yyyyyyyyyy
W2 = 110111xxxxxxxxxx
This method prints text from the current position. When the right margin is reached (or the \n character is met) a line break occurs and text continues from the left margin. Upon method exit, the current position is left just at the end of the text. It is possible to put a link on the text.
Example:
//Begin with regular font
$pdf->SetFont('Arial','',14);
$pdf->Write(5,'Visit ');
//Then put a blue underlined link
$pdf->SetTextColor(0,0,255);
$pdf->SetFont('','U');
$pdf->Write(5,'www.tecnick.com','http://www.tecnick.com');
Print Barcode.
Allows to preserve some HTML formatting.
Supports: h1, h2, h3, h4, h5, h6, b, u, i, a, img, p, br, strong, em, font, blockquote, li, ul, ol, hr, td, th, tr, table, sup, sub, small
Prints a cell (rectangular area) with optional borders, background color and html text string. The upper-left corner of the cell corresponds to the current position. After the call, the current position moves to the right or to the next line.
If automatic page breaking is enabled and the cell goes beyond the limit, a page break is done before outputting.
Start document
_beginpage
Check for locale-related bug
Underline text
_enddoc
End of page contents
Add \ before \, ( and )
Format a text string
Read a 4-byte integer from file
Return fonts path
Begin a new object
Add a line to the document
Extract info from a JPEG file
Extract info from a PNG file
_putcatalog
Adds fonts
_putfonts
_putheader
_putimages
_putinfo
_putpages
_putresourcedict
_putresources
_puttrailer
Adds unicode fonts.
Based on PDF Reference 1.3 (section 5)
_putxobjectdict
Format a text string
Documentation generated on Tue, 20 Mar 2007 13:25:53 +0100 by phpDocumentor 1.3.0RC3