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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @author Helmut Tischer <htischer@weihenstephan.org>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Dompdf\Adapter;
use Dompdf\Canvas;
use Dompdf\Dompdf;
use Dompdf\Helpers;
use Dompdf\Exception;
use Dompdf\FontMetrics;
use Dompdf\Image\Cache;
use Dompdf\PhpEvaluator;
/**
* PDF rendering interface
*
* Dompdf\Adapter\PDFLib provides a simple, stateless interface to the one
* provided by PDFLib.
*
* Unless otherwise mentioned, all dimensions are in points (1/72 in).
* The coordinate origin is in the top left corner and y values
* increase downwards.
*
* See {@link http://www.pdflib.com/} for more complete documentation
* on the underlying PDFlib functions.
*
* @package dompdf
*/
class PDFLib implements Canvas
{
/**
* Dimensions of paper sizes in points
*
* @var array;
*/
static public $PAPER_SIZES = array(); // Set to Dompdf\Adapter\CPDF::$PAPER_SIZES below.
/**
* Whether to create PDFs in memory or on disk
*
* @var bool
*/
static $IN_MEMORY = true;
/**
* @var Dompdf
*/
private $_dompdf;
/**
* Instance of PDFLib class
*
* @var \PDFlib
*/
private $_pdf;
/**
* Name of temporary file used for PDFs created on disk
*
* @var string
*/
private $_file;
/**
* PDF width, in points
*
* @var float
*/
private $_width;
/**
* PDF height, in points
*
* @var float
*/
private $_height;
/**
* Last fill color used
*
* @var array
*/
private $_last_fill_color;
/**
* Last stroke color used
*
* @var array
*/
private $_last_stroke_color;
/**
* The current opacity level
*
* @var array
*/
private $_current_opacity;
/**
* Cache of image handles
*
* @var array
*/
private $_imgs;
/**
* Cache of font handles
*
* @var array
*/
private $_fonts;
/**
* List of objects (templates) to add to multiple pages
*
* @var array
*/
private $_objs;
/**
* List of gstate objects created for this PDF (for reuse)
*
* @var array
*/
private $_gstates = array();
/**
* Current page number
*
* @var int
*/
private $_page_number;
/**
* Total number of pages
*
* @var int
*/
private $_page_count;
/**
* Text to display on every page
*
* @var array
*/
private $_page_text;
/**
* Array of pages for accesing after rendering is initially complete
*
* @var array
*/
private $_pages;
/**
* Class constructor
*
* @param mixed $paper The size of paper to use either a string (see {@link Dompdf\Adapter\CPDF::$PAPER_SIZES}) or
* an array(xmin,ymin,xmax,ymax)
* @param string $orientation The orientation of the document (either 'landscape' or 'portrait')
* @param Dompdf $dompdf
*/
public function __construct($paper = "letter", $orientation = "portrait", Dompdf $dompdf)
{
if (is_array($paper)) {
$size = $paper;
} else if (isset(self::$PAPER_SIZES[mb_strtolower($paper)])) {
$size = self::$PAPER_SIZES[mb_strtolower($paper)];
} else {
$size = self::$PAPER_SIZES["letter"];
}
if (mb_strtolower($orientation) === "landscape") {
list($size[2], $size[3]) = array($size[3], $size[2]);
}
$this->_width = $size[2] - $size[0];
$this->_height = $size[3] - $size[1];
$this->_dompdf = $dompdf;
$this->_pdf = new \PDFLib();
$license = $dompdf->getOptions()->getPdflibLicense();
if (strlen($license) > 0)
$this->_pdf->set_parameter("license", $license);
$this->_pdf->set_parameter("textformat", "utf8");
$this->_pdf->set_parameter("fontwarning", "false");
// TODO: fetch PDFLib version information for the producer field
$this->_pdf->set_info("Producer Addendum", sprintf("%s + PDFLib", $dompdf->version));
// Silence pedantic warnings about missing TZ settings
$tz = @date_default_timezone_get();
date_default_timezone_set("UTC");
$this->_pdf->set_info("Date", date("Y-m-d"));
date_default_timezone_set($tz);
if (self::$IN_MEMORY)
$this->_pdf->begin_document("", "");
else {
$tmp_dir = $this->_dompdf->getOptions()->getTempDir();
$tmp_name = tempnam($tmp_dir, "libdompdf_pdf_");
@unlink($tmp_name);
$this->_file = "$tmp_name.pdf";
$this->_pdf->begin_document($this->_file, "");
}
$this->_pdf->begin_page_ext($this->_width, $this->_height, "");
$this->_page_number = $this->_page_count = 1;
$this->_page_text = array();
$this->_imgs = array();
$this->_fonts = array();
$this->_objs = array();
}
/**
* @return Dompdf
*/
function get_dompdf()
{
return $this->_dompdf;
}
/**
* Close the pdf
*/
protected function _close()
{
$this->_place_objects();
// Close all pages
$this->_pdf->suspend_page("");
for ($p = 1; $p <= $this->_page_count; $p++) {
$this->_pdf->resume_page("pagenumber=$p");
$this->_pdf->end_page_ext("");
}
$this->_pdf->end_document("");
}
/**
* Returns the PDFLib instance
*
* @return PDFLib
*/
public function get_pdflib()
{
return $this->_pdf;
}
/**
* Add meta information to the PDF
*
* @param string $label label of the value (Creator, Producter, etc.)
* @param string $value the text to set
*/
public function add_info($label, $value)
{
$this->_pdf->set_info($label, $value);
}
/**
* Opens a new 'object' (template in PDFLib-speak)
*
* While an object is open, all drawing actions are recorded to the
* object instead of being drawn on the current page. Objects can
* be added later to a specific page or to several pages.
*
* The return value is an integer ID for the new object.
*
* @see PDFLib_Adapter::close_object()
* @see PDFLib_Adapter::add_object()
*
* @return int
*/
public function open_object()
{
$this->_pdf->suspend_page("");
$ret = $this->_pdf->begin_template($this->_width, $this->_height);
$this->_pdf->save();
$this->_objs[$ret] = array("start_page" => $this->_page_number);
return $ret;
}
/**
* Reopen an existing object (NOT IMPLEMENTED)
* PDFLib does not seem to support reopening templates.
*
* @param int $object the ID of a previously opened object
*
* @throws Exception
* @return void
*/
public function reopen_object($object)
{
throw new Exception("PDFLib does not support reopening objects.");
}
/**
* Close the current template
*
* @see PDFLib_Adapter::open_object()
*/
public function close_object()
{
$this->_pdf->restore();
$this->_pdf->end_template();
$this->_pdf->resume_page("pagenumber=" . $this->_page_number);
}
/**
* Adds the specified object to the document
*
* $where can be one of:
* - 'add' add to current page only
* - 'all' add to every page from the current one onwards
* - 'odd' add to all odd numbered pages from now on
* - 'even' add to all even numbered pages from now on
* - 'next' add the object to the next page only
* - 'nextodd' add to all odd numbered pages from the next one
* - 'nexteven' add to all even numbered pages from the next one
*
* @param int $object the object handle returned by open_object()
* @param string $where
*/
public function add_object($object, $where = 'all')
{
if (mb_strpos($where, "next") !== false) {
$this->_objs[$object]["start_page"]++;
$where = str_replace("next", "", $where);
if ($where == "")
$where = "add";
}
$this->_objs[$object]["where"] = $where;
}
/**
* Stops the specified template from appearing in the document.
*
* The object will stop being displayed on the page following the
* current one.
*
* @param int $object
*/
public function stop_object($object)
{
if (!isset($this->_objs[$object]))
return;
$start = $this->_objs[$object]["start_page"];
$where = $this->_objs[$object]["where"];
// Place the object on this page if required
if ($this->_page_number >= $start &&
(($this->_page_number % 2 == 0 && $where === "even") ||
($this->_page_number % 2 == 1 && $where === "odd") ||
($where === "all"))
) {
$this->_pdf->fit_image($object, 0, 0, "");
}
$this->_objs[$object] = null;
unset($this->_objs[$object]);
}
/**
* Add all active objects to the current page
*/
protected function _place_objects()
{
foreach ($this->_objs as $obj => $props) {
$start = $props["start_page"];
$where = $props["where"];
// Place the object on this page if required
if ($this->_page_number >= $start &&
(($this->_page_number % 2 == 0 && $where === "even") ||
($this->_page_number % 2 == 1 && $where === "odd") ||
($where === "all"))
) {
$this->_pdf->fit_image($obj, 0, 0, "");
}
}
}
/**
* @return float|mixed
*/
public function get_width()
{
return $this->_width;
}
/**
* @return float|mixed
*/
public function get_height()
{
return $this->_height;
}
/**
* @return int
*/
public function get_page_number()
{
return $this->_page_number;
}
/**
* @return int
*/
public function get_page_count()
{
return $this->_page_count;
}
/**
* @param $num
*/
public function set_page_number($num)
{
$this->_page_number = (int)$num;
}
/**
* @param int $count
*/
public function set_page_count($count)
{
$this->_page_count = (int)$count;
}
/**
* Sets the line style
*
* @param float $width
* @param $cap
* @param string $join
* @param array $dash
*
* @return void
*/
protected function _set_line_style($width, $cap, $join, $dash)
{
if (count($dash) == 1)
$dash[] = $dash[0];
if (count($dash) > 1)
$this->_pdf->setdashpattern("dasharray={" . implode(" ", $dash) . "}");
else
$this->_pdf->setdash(0, 0);
switch ($join) {
case "miter":
$this->_pdf->setlinejoin(0);
break;
case "round":
$this->_pdf->setlinejoin(1);
break;
case "bevel":
$this->_pdf->setlinejoin(2);
break;
default:
break;
}
switch ($cap) {
case "butt":
$this->_pdf->setlinecap(0);
break;
case "round":
$this->_pdf->setlinecap(1);
break;
case "square":
$this->_pdf->setlinecap(2);
break;
default:
break;
}
$this->_pdf->setlinewidth($width);
}
/**
* Sets the line color
*
* @param array $color array(r,g,b)
*/
protected function _set_stroke_color($color)
{
if ($this->_last_stroke_color == $color) {
//return;
}
$alpha = isset($color["alpha"]) ? $color["alpha"] : 1;
if (isset($this->_current_opacity)) {
$alpha *= $this->_current_opacity;
}
$this->_last_stroke_color = $color;
if (isset($color[3])) {
$type = "cmyk";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], $color[2], $color[3]);
} elseif (isset($color[2])) {
$type = "rgb";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], $color[2], null);
} else {
$type = "gray";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], null, null);
}
$this->_set_stroke_opacity($alpha);
$this->_pdf->setcolor("stroke", $type, $c1, $c2, $c3, $c4);
}
/**
* Sets the fill color
*
* @param array $color array(r,g,b)
*/
protected function _set_fill_color($color)
{
if ($this->_last_fill_color == $color)
return;
$alpha = isset($color["alpha"]) ? $color["alpha"] : 1;
if (isset($this->_current_opacity)) {
$alpha *= $this->_current_opacity;
}
$this->_last_fill_color = $color;
if (isset($color[3])) {
$type = "cmyk";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], $color[2], $color[3]);
} elseif (isset($color[2])) {
$type = "rgb";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], $color[2], null);
} else {
$type = "gray";
list($c1, $c2, $c3, $c4) = array($color[0], $color[1], null, null);
}
$this->_set_fill_opacity($alpha);
$this->_pdf->setcolor("fill", $type, $c1, $c2, $c3, $c4);
}
/**
* Sets the fill opacity
*
* @param $opacity
* @param $mode
*/
public function _set_fill_opacity($opacity, $mode = "Normal")
{
if ($mode === "Normal") {
$this->_set_gstate("opacityfill=$opacity");
}
}
/**
* Sets the stroke opacity
*
* @param $opacity
* @param $mode
*/
public function _set_stroke_opacity($opacity, $mode = "Normal")
{
if ($mode === "Normal") {
$this->_set_gstate("opacitystroke=$opacity");
}
}
/**
* Sets the opacity
*
* @param $opacity
* @param $mode
*/
public function set_opacity($opacity, $mode = "Normal")
{
if ($mode === "Normal") {
$this->_set_gstate("opacityfill=$opacity opacitystroke=$opacity");
$this->_current_opacity = $opacity;
}
}
/**
* Sets the gstate
*
* @param $gstate_options
* @return int
*/
public function _set_gstate($gstate_options)
{
if (($gstate = array_search($gstate_options, $this->_gstates)) === false) {
$gstate = $this->_pdf->create_gstate($gstate_options);
$this->_gstates[$gstate] = $gstate_options;
}
return $this->_pdf->set_gstate($gstate);
}
public function set_default_view($view, $options = array())
{
// TODO
// http://www.pdflib.com/fileadmin/pdflib/pdf/manuals/PDFlib-8.0.2-API-reference.pdf
/**
* fitheight Fit the page height to the window, with the x coordinate left at the left edge of the window.
* fitrect Fit the rectangle specified by left, bottom, right, and top to the window.
* fitvisible Fit the visible contents of the page (the ArtBox) to the window.
* fitvisibleheight Fit the visible contents of the page to the window with the x coordinate left at the left edge of the window.
* fitvisiblewidth Fit the visible contents of the page to the window with the y coordinate top at the top edge of the window.
* fitwidth Fit the page width to the window, with the y coordinate top at the top edge of the window.
* fitwindow Fit the complete page to the window.
* fixed
*/
//$this->_pdf->set_parameter("openaction", $view);
}
/**
* Loads a specific font and stores the corresponding descriptor.
*
* @param string $font
* @param string $encoding
* @param string $options
*
* @return int the font descriptor for the font
*/
protected function _load_font($font, $encoding = null, $options = "")
{
// Set up font paths
if ($this->_pdf->get_parameter("FontOutline", 1) === "") {
$families = $this->_dompdf->getFontMetrics()->getFontFamilies();
foreach ($families as $files) {
foreach ($files as $file) {
$face = basename($file);
$afm = null;
// Prefer ttfs to afms
if (file_exists("$file.ttf")) {
$outline = "$file.ttf";
} else if (file_exists("$file.TTF")) {
$outline = "$file.TTF";
} else if (file_exists("$file.pfb")) {
$outline = "$file.pfb";
if (file_exists("$file.afm")) {
$afm = "$file.afm";
}
} else if (file_exists("$file.PFB")) {
$outline = "$file.PFB";
if (file_exists("$file.AFM")) {
$afm = "$file.AFM";
}
} else {
continue;
}
$this->_pdf->set_parameter("FontOutline", "\{$face\}=\{$outline\}");
if (!is_null($afm)) {
$this->_pdf->set_parameter("FontAFM", "\{$face\}=\{$afm\}");
}
}
}
}
// Check if the font is a native PDF font
// Embed non-native fonts
$test = strtolower(basename($font));
if (in_array($test, DOMPDF::$nativeFonts)) {
$font = basename($font);
} else {
// Embed non-native fonts
$options .= " embedding=true";
}
if (is_null($encoding)) {
// Unicode encoding is only available for the commerical
// version of PDFlib and not PDFlib-Lite
if (strlen($this->_dompdf->getOptions()->getPdflibLicense()) > 0) {
$encoding = "unicode";
} else {
$encoding = "auto";
}
}
$key = "$font:$encoding:$options";
if (isset($this->_fonts[$key])) {
return $this->_fonts[$key];
} else {
$this->_fonts[$key] = $this->_pdf->load_font($font, $encoding, $options);
return $this->_fonts[$key];
}
}
/**
* Remaps y coords from 4th to 1st quadrant
*
* @param float $y
* @return float
*/
protected function y($y)
{
return $this->_height - $y;
}
/**
* @param float $x1
* @param float $y1
* @param float $x2
* @param float $y2
* @param array $color
* @param float $width
* @param array $style
*/
public function line($x1, $y1, $x2, $y2, $color, $width, $style = null)
{
$this->_set_line_style($width, "butt", "", $style);
$this->_set_stroke_color($color);
$y1 = $this->y($y1);
$y2 = $this->y($y2);
$this->_pdf->moveto($x1, $y1);
$this->_pdf->lineto($x2, $y2);
$this->_pdf->stroke();
}
/**
* @param float $x1
* @param float $y1
* @param float $r1
* @param float $r2
* @param float $astart
* @param float $aend
* @param array $color
* @param float $width
* @param array $style
*/
public function arc($x1, $y1, $r1, $r2, $astart, $aend, $color, $width, $style = array())
{
$this->_set_line_style($width, "butt", "", $style);
$this->_set_stroke_color($color);
$y1 = $this->y($y1);
$this->_pdf->arc($x1, $y1, $r1, $astart, $aend);
$this->_pdf->stroke();
}
/**
* @param float $x1
* @param float $y1
* @param float $w
* @param float $h
* @param array $color
* @param float $width
* @param null $style
*/
public function rectangle($x1, $y1, $w, $h, $color, $width, $style = null)
{
$this->_set_stroke_color($color);
$this->_set_line_style($width, "butt", "", $style);
$y1 = $this->y($y1) - $h;
$this->_pdf->rect($x1, $y1, $w, $h);
$this->_pdf->stroke();
}
/**
* @param float $x1
* @param float $y1
* @param float $w
* @param float $h
* @param array $color
*/
public function filled_rectangle($x1, $y1, $w, $h, $color)
{
$this->_set_fill_color($color);
$y1 = $this->y($y1) - $h;
$this->_pdf->rect(floatval($x1), floatval($y1), floatval($w), floatval($h));
$this->_pdf->fill();
}
/**
* @param float $x1
* @param float $y1
* @param float $w
* @param float $h
*/
public function clipping_rectangle($x1, $y1, $w, $h)
{
$this->_pdf->save();
$y1 = $this->y($y1) - $h;
$this->_pdf->rect(floatval($x1), floatval($y1), floatval($w), floatval($h));
$this->_pdf->clip();
}
/**
* @param float $x1
* @param float $y1
* @param float $w
* @param float $h
* @param float $rTL
* @param float $rTR
* @param float $rBR
* @param float $rBL
*/
public function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
{
// @todo
$this->clipping_rectangle($x1, $y1, $w, $h);
}
/**
*
*/
public function clipping_end()
{
$this->_pdf->restore();
}
/**
*
*/
public function save()
{
$this->_pdf->save();
}
function restore()
{
$this->_pdf->restore();
}
/**
* @param $angle
* @param $x
* @param $y
*/
public function rotate($angle, $x, $y)
{
$pdf = $this->_pdf;
$pdf->translate($x, $this->_height - $y);
$pdf->rotate(-$angle);
$pdf->translate(-$x, -$this->_height + $y);
}
/**
* @param $angle_x
* @param $angle_y
* @param $x
* @param $y
*/
public function skew($angle_x, $angle_y, $x, $y)
{
$pdf = $this->_pdf;
$pdf->translate($x, $this->_height - $y);
$pdf->skew($angle_y, $angle_x); // Needs to be inverted
$pdf->translate(-$x, -$this->_height + $y);
}
/**
* @param $s_x
* @param $s_y
* @param $x
* @param $y
*/
public function scale($s_x, $s_y, $x, $y)
{
$pdf = $this->_pdf;
$pdf->translate($x, $this->_height - $y);
$pdf->scale($s_x, $s_y);
$pdf->translate(-$x, -$this->_height + $y);
}
/**
* @param $t_x
* @param $t_y
*/
public function translate($t_x, $t_y)
{
$this->_pdf->translate($t_x, -$t_y);
}
/**
* @param $a
* @param $b
* @param $c
* @param $d
* @param $e
* @param $f
*/
public function transform($a, $b, $c, $d, $e, $f)
{
$this->_pdf->concat($a, $b, $c, $d, $e, $f);
}
/**
* @param array $points
* @param array $color
* @param null $width
* @param null $style
* @param bool $fill
*/
public function polygon($points, $color, $width = null, $style = null, $fill = false)
{
$this->_set_fill_color($color);
$this->_set_stroke_color($color);
if (!$fill && isset($width)) {
$this->_set_line_style($width, "square", "miter", $style);
}
$y = $this->y(array_pop($points));
$x = array_pop($points);
$this->_pdf->moveto($x, $y);
while (count($points) > 1) {
$y = $this->y(array_pop($points));
$x = array_pop($points);
$this->_pdf->lineto($x, $y);
}
if ($fill) {
$this->_pdf->fill();
} else {
$this->_pdf->closepath_stroke();
}
}
/**
* @param float $x
* @param float $y
* @param float $r
* @param array $color
* @param null $width
* @param null $style
* @param bool $fill
*/
public function circle($x, $y, $r, $color, $width = null, $style = null, $fill = false)
{
$this->_set_fill_color($color);
$this->_set_stroke_color($color);
if (!$fill && isset($width))
$this->_set_line_style($width, "round", "round", $style);
$y = $this->y($y);
$this->_pdf->circle($x, $y, $r);
if ($fill) {
$this->_pdf->fill();
} else {
$this->_pdf->stroke();
}
}
/**
* @param string $img_url
* @param float $x
* @param float $y
* @param int $w
* @param int $h
* @param string $resolution
*/
public function image($img_url, $x, $y, $w, $h, $resolution = "normal")
{
$w = (int)$w;
$h = (int)$h;
$img_type = Cache::detect_type($img_url, $this->get_dompdf()->getHttpContext());
if (!isset($this->_imgs[$img_url])) {
$this->_imgs[$img_url] = $this->_pdf->load_image($img_type, $img_url, "");
}
$img = $this->_imgs[$img_url];
$y = $this->y($y) - $h;
$this->_pdf->fit_image($img, $x, $y, 'boxsize={' . "$w $h" . '} fitmethod=entire');
}
/**
* @param float $x
* @param float $y
* @param string $text
* @param string $font
* @param float $size
* @param array $color
* @param int $word_spacing
* @param int $char_spacing
* @param int $angle
*/
public function text($x, $y, $text, $font, $size, $color = array(0, 0, 0), $word_spacing = 0, $char_spacing = 0, $angle = 0)
{
$fh = $this->_load_font($font);
$this->_pdf->setfont($fh, $size);
$this->_set_fill_color($color);
$y = $this->y($y) - $this->get_font_height($font, $size);
$word_spacing = (float)$word_spacing;
$char_spacing = (float)$char_spacing;
$angle = -(float)$angle;
$this->_pdf->fit_textline($text, $x, $y, "rotate=$angle wordspacing=$word_spacing charspacing=$char_spacing ");
}
/**
* @param string $code
*/
public function javascript($code)
{
if (strlen($this->_dompdf->getOptions()->getPdflibLicense()) > 0) {
$this->_pdf->create_action("JavaScript", $code);
}
}
/**
* Add a named destination (similar to <a name="foo">...</a> in html)
*
* @param string $anchorname The name of the named destination
*/
public function add_named_dest($anchorname)
{
$this->_pdf->add_nameddest($anchorname, "");
}
/**
* Add a link to the pdf
*
* @param string $url The url to link to
* @param float $x The x position of the link
* @param float $y The y position of the link
* @param float $width The width of the link
* @param float $height The height of the link
*/
public function add_link($url, $x, $y, $width, $height)
{
$y = $this->y($y) - $height;
if (strpos($url, '#') === 0) {
// Local link
$name = substr($url, 1);
if ($name) {
$this->_pdf->create_annotation($x, $y, $x + $width, $y + $height, 'Link',
"contents={$url} destname=" . substr($url, 1) . " linewidth=0");
}
} else {
list($proto, $host, $path, $file) = Helpers::explode_url($url);
if ($proto == "" || $proto === "file://") {
return; // Local links are not allowed
}
$url = Helpers::build_url($proto, $host, $path, $file);
$url = '{' . rawurldecode($url) . '}';
$action = $this->_pdf->create_action("URI", "url=" . $url);
$this->_pdf->create_annotation($x, $y, $x + $width, $y + $height, 'Link', "contents={$url} action={activate=$action} linewidth=0");
}
}
/**
* @param string $text
* @param string $font
* @param float $size
* @param int $word_spacing
* @param int $letter_spacing
* @return mixed
*/
public function get_text_width($text, $font, $size, $word_spacing = 0, $letter_spacing = 0)
{
$fh = $this->_load_font($font);
// Determine the additional width due to extra spacing
$num_spaces = mb_substr_count($text, " ");
$delta = $word_spacing * $num_spaces;
if ($letter_spacing) {
$num_chars = mb_strlen($text);
$delta += ($num_chars - $num_spaces) * $letter_spacing;
}
return $this->_pdf->stringwidth($text, $fh, $size) + $delta;
}
/**
* @param string $font
* @param float $size
* @return float
*/
public function get_font_height($font, $size)
{
$fh = $this->_load_font($font);
$this->_pdf->setfont($fh, $size);
$asc = $this->_pdf->get_value("ascender", $fh);
$desc = $this->_pdf->get_value("descender", $fh);
// $desc is usually < 0,
$ratio = $this->_dompdf->getOptions()->getFontHeightRatio();
return $size * ($asc - $desc) * $ratio;
}
/**
* @param string $font
* @param float $size
* @return float
*/
public function get_font_baseline($font, $size)
{
$ratio = $this->_dompdf->getOptions()->getFontHeightRatio();
return $this->get_font_height($font, $size) / $ratio * 1.1;
}
/**
* Writes text at the specified x and y coordinates on every page
*
* The strings '{PAGE_NUM}' and '{PAGE_COUNT}' are automatically replaced
* with their current values.
*
* See {@link Style::munge_color()} for the format of the color array.
*
* @param float $x
* @param float $y
* @param string $text the text to write
* @param string $font the font file to use
* @param float $size the font size, in points
* @param array $color
* @param float $word_space word spacing adjustment
* @param float $char_space char spacing adjustment
* @param float $angle angle to write the text at, measured CW starting from the x-axis
*/
public function page_text($x, $y, $text, $font, $size, $color = array(0, 0, 0), $word_space = 0.0, $char_space = 0.0, $angle = 0.0)
{
$_t = "text";
$this->_page_text[] = compact("_t", "x", "y", "text", "font", "size", "color", "word_space", "char_space", "angle");
}
//........................................................................
/**
* Processes a script on every page
*
* The variables $pdf, $PAGE_NUM, and $PAGE_COUNT are available.
*
* This function can be used to add page numbers to all pages
* after the first one, for example.
*
* @param string $code the script code
* @param string $type the language type for script
*/
public function page_script($code, $type = "text/php")
{
$_t = "script";
$this->_page_text[] = compact("_t", "code", "type");
}
/**
*
*/
public function new_page()
{
// Add objects to the current page
$this->_place_objects();
$this->_pdf->suspend_page("");
$this->_pdf->begin_page_ext($this->_width, $this->_height, "");
$this->_page_number = ++$this->_page_count;
}
/**
* Add text to each page after rendering is complete
*/
protected function _add_page_text()
{
if (!count($this->_page_text)) {
return;
}
$eval = null;
$this->_pdf->suspend_page("");
for ($p = 1; $p <= $this->_page_count; $p++) {
$this->_pdf->resume_page("pagenumber=$p");
foreach ($this->_page_text as $pt) {
extract($pt);
switch ($_t) {
case "text":
$text = str_replace(array("{PAGE_NUM}", "{PAGE_COUNT}"),
array($p, $this->_page_count), $text);
$this->text($x, $y, $text, $font, $size, $color, $word_space, $char_space, $angle);
break;
case "script":
if (!$eval) {
$eval = new PHPEvaluator($this);
}
$eval->evaluate($code, array('PAGE_NUM' => $p, 'PAGE_COUNT' => $this->_page_count));
break;
}
}
$this->_pdf->suspend_page("");
}
$this->_pdf->resume_page("pagenumber=" . $this->_page_number);
}
/**
* @param string $filename
* @param null $options
* @throws Exception
*/
public function stream($filename, $options = null)
{
// Add page text
$this->_add_page_text();
if (isset($options["compress"]) && $options["compress"] != 1) {
$this->_pdf->set_value("compress", 0);
} else {
$this->_pdf->set_value("compress", 6);
}
$this->_close();
$data = "";
if (self::$IN_MEMORY) {
$data = $this->_pdf->get_buffer();
//$size = strlen($data);
} else {
//$size = filesize($this->_file);
}
header("Cache-Control: private");
header("Content-type: application/pdf");
$filename = str_replace(array("\n", "'"), "", basename($filename, ".pdf")) . ".pdf";
$attach = (isset($options["Attachment"]) && $options["Attachment"]) ? "attachment" : "inline";
// detect the character encoding of the incoming file
$encoding = mb_detect_encoding($filename);
$fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding);
$encodedfallbackfilename = rawurlencode($fallbackfilename);
$encodedfilename = rawurlencode($filename);
$contentDisposition = "Content-Disposition: $attachment; filename=\"" . $encodedfallbackfilename . "\"";
if ($encodedfallbackfilename !== $encodedfilename) {
$contentDisposition .= "; filename*=UTF-8''$encodedfilename";
}
header($contentDisposition);
//header("Content-length: " . $size);
if (self::$IN_MEMORY) {
echo $data;
} else {
// Chunked readfile()
$chunk = (1 << 21); // 2 MB
$fh = fopen($this->_file, "rb");
if (!$fh) {
throw new Exception("Unable to load temporary PDF file: " . $this->_file);
}
while (!feof($fh)) {
echo fread($fh, $chunk);
}
fclose($fh);
//debugpng
if ($this->_dompdf->getOptions()->getDebugPng()) print '[pdflib stream unlink ' . $this->_file . ']';
if (!$this->_dompdf->getOptions()->getDebugKeepTemp())
unlink($this->_file);
$this->_file = null;
unset($this->_file);
}
flush();
}
/**
* @param null $options
* @return string
*/
public function output($options = null)
{
// Add page text
$this->_add_page_text();
if (isset($options["compress"]) && $options["compress"] != 1) {
$this->_pdf->set_value("compress", 0);
} else {
$this->_pdf->set_value("compress", 6);
}
$this->_close();
if (self::$IN_MEMORY) {
$data = $this->_pdf->get_buffer();
} else {
$data = file_get_contents($this->_file);
//debugpng
if ($this->_dompdf->getOptions()->getDebugPng()) {
print '[pdflib output unlink ' . $this->_file . ']';
}
if (!$this->_dompdf->getOptions()->getDebugKeepTemp()) {
unlink($this->_file);
}
$this->_file = null;
unset($this->_file);
}
return $data;
}
}
// Workaround for idiotic limitation on statics...
PDFLib::$PAPER_SIZES = CPDF::$PAPER_SIZES;
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