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<?php
/**
* @package dompdf
* @link https://github.com/dompdf/dompdf
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Dompdf\Adapter;
use Dompdf\Canvas;
use Dompdf\Dompdf;
use Dompdf\Exception;
use Dompdf\FontMetrics;
use Dompdf\Helpers;
use Dompdf\Image\Cache;
/**
* 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
*/
public static $PAPER_SIZES = []; // Set to Dompdf\Adapter\CPDF::$PAPER_SIZES below.
/**
* Whether to create PDFs in memory or on disk
*
* @var bool
*/
static $IN_MEMORY = true;
/**
* Saves the major version of PDFLib for compatibility requests
*
* @var null|int
*/
protected static $MAJOR_VERSION = null;
/**
* Transforms the list of native fonts into PDFLib compatible names (casesensitive)
*
* @var array
*/
public static $nativeFontsTpPDFLib = [
"courier" => "Courier",
"courier-bold" => "Courier-Bold",
"courier-oblique" => "Courier-Oblique",
"courier-boldoblique" => "Courier-BoldOblique",
"helvetica" => "Helvetica",
"helvetica-bold" => "Helvetica-Bold",
"helvetica-oblique" => "Helvetica-Oblique",
"helvetica-boldoblique" => "Helvetica-BoldOblique",
"times" => "Times-Roman",
"times-roman" => "Times-Roman",
"times-bold" => "Times-Bold",
"times-italic" => "Times-Italic",
"times-bolditalic" => "Times-BoldItalic",
"symbol" => "Symbol",
"zapfdinbats" => "ZapfDingbats",
"zapfdingbats" => "ZapfDingbats",
];
/**
* @var \Dompdf\Dompdf
*/
protected $_dompdf;
/**
* Instance of PDFLib class
*
* @var \PDFLib
*/
protected $_pdf;
/**
* Name of temporary file used for PDFs created on disk
*
* @var string
*/
protected $_file;
/**
* PDF width, in points
*
* @var float
*/
protected $_width;
/**
* PDF height, in points
*
* @var float
*/
protected $_height;
/**
* Last fill color used
*
* @var array
*/
protected $_last_fill_color;
/**
* Last stroke color used
*
* @var array
*/
protected $_last_stroke_color;
/**
* The current opacity level
*
* @var float|null
*/
protected $_current_opacity;
/**
* Cache of image handles
*
* @var array
*/
protected $_imgs;
/**
* Cache of font handles
*
* @var array
*/
protected $_fonts;
/**
* Cache of fontFile checks
*
* @var array
*/
protected $_fontsFiles;
/**
* List of objects (templates) to add to multiple pages
*
* @var array
*/
protected $_objs;
/**
* List of gstate objects created for this PDF (for reuse)
*
* @var array
*/
protected $_gstates = [];
/**
* Current page number
*
* @var int
*/
protected $_page_number;
/**
* Total number of pages
*
* @var int
*/
protected $_page_count;
/**
* Array of pages for accessing after rendering is initially complete
*
* @var array
*/
protected $_pages;
public function __construct($paper = "letter", string $orientation = "portrait", ?Dompdf $dompdf = null)
{
if (is_array($paper)) {
$size = array_map("floatval", $paper);
} else {
$paper = strtolower($paper);
$size = self::$PAPER_SIZES[$paper] ?? self::$PAPER_SIZES["letter"];
}
if (strtolower($orientation) === "landscape") {
[$size[2], $size[3]] = [$size[3], $size[2]];
}
$this->_width = $size[2] - $size[0];
$this->_height = $size[3] - $size[1];
if ($dompdf === null) {
$this->_dompdf = new Dompdf();
} else {
$this->_dompdf = $dompdf;
}
$this->_pdf = new \PDFLib();
$license = $dompdf->getOptions()->getPdflibLicense();
if (strlen($license) > 0) {
$this->setPDFLibParameter("license", $license);
}
if ($this->getPDFLibMajorVersion() < 10) {
$this->setPDFLibParameter("textformat", "utf8");
}
if ($this->getPDFLibMajorVersion() >= 7) {
$this->setPDFLibParameter("errorpolicy", "return");
// $this->_pdf->set_option('logging={filename=' . \APP_PATH . '/logs/pdflib.log classes={api=1 warning=2}}');
// $this->_pdf->set_option('errorpolicy=exception');
} else {
$this->setPDFLibParameter("fontwarning", "false");
}
$searchPath = $this->_dompdf->getOptions()->getFontDir();
if (empty($searchPath) === false) {
$this->_pdf->set_option('searchpath={' . $searchPath . '}');
}
// fetch PDFLib version information for the producer field
$this->_pdf->set_info("Producer Addendum", sprintf("%s + PDFLib %s", $dompdf->version, $this->getPDFLibMajorVersion()));
// 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->_imgs = [];
$this->_fonts = [];
$this->_objs = [];
}
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;
}
public function add_info(string $label, string $value): void
{
$this->_pdf->set_info($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::close_object()
* @see PDFLib::add_object()
*
* @return int
*/
public function open_object()
{
$this->_pdf->suspend_page("");
if ($this->getPDFLibMajorVersion() >= 7) {
$ret = $this->_pdf->begin_template_ext($this->_width, $this->_height, null);
} else {
$ret = $this->_pdf->begin_template($this->_width, $this->_height);
}
$this->_pdf->save();
$this->_objs[$ret] = ["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::open_object()
*/
public function close_object()
{
$this->_pdf->restore();
if ($this->getPDFLibMajorVersion() >= 7) {
$this->_pdf->end_template_ext($this->_width, $this->_height);
} else {
$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, "");
}
}
}
public function get_width()
{
return $this->_width;
}
public function get_height()
{
return $this->_height;
}
public function get_page_number()
{
return $this->_page_number;
}
public function get_page_count()
{
return $this->_page_count;
}
/**
* @param $num
*/
public function set_page_number($num)
{
$this->_page_number = (int)$num;
}
public function set_page_count($count)
{
$this->_page_count = (int)$count;
}
/**
* Sets the line style
*
* @param float $width
* @param string $cap
* @param string $join
* @param array $dash
*/
protected function _set_line_style($width, $cap, $join, $dash)
{
if (!is_array($dash)) {
$dash = [];
}
// Work around PDFLib limitation with 0 dash length:
// Value 0 for option 'dasharray' is too small (minimum 1.5e-05)
foreach ($dash as &$d) {
if ($d == 0) {
$d = 1.5e-5;
}
}
if (count($dash) === 1) {
$dash[] = $dash[0];
}
if ($this->getPDFLibMajorVersion() >= 9) {
if (count($dash) > 1) {
$this->_pdf->set_graphics_option("dasharray={" . implode(" ", $dash) . "}");
} else {
$this->_pdf->set_graphics_option("dasharray=none");
}
} else {
if (count($dash) > 1) {
$this->_pdf->setdashpattern("dasharray={" . implode(" ", $dash) . "}");
} else {
$this->_pdf->setdash(0, 0);
}
}
switch ($join) {
case "miter":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linejoin=0');
} else {
$this->_pdf->setlinejoin(0);
}
break;
case "round":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linejoin=1');
} else {
$this->_pdf->setlinejoin(1);
}
break;
case "bevel":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linejoin=2');
} else {
$this->_pdf->setlinejoin(2);
}
break;
default:
break;
}
switch ($cap) {
case "butt":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linecap=0');
} else {
$this->_pdf->setlinecap(0);
}
break;
case "round":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linecap=1');
} else {
$this->_pdf->setlinecap(1);
}
break;
case "square":
if ($this->getPDFLibMajorVersion() >= 9) {
$this->_pdf->set_graphics_option('linecap=2');
} else {
$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)
{
// TODO: we should check the current PDF stroke color
// instead of the cached value
if ($this->_last_stroke_color == $color) {
// FIXME: do nothing, this optimization is broken by the
// stroke being set as a side effect of other operations
//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, $c4) = [$color[0], $color[1], $color[2], $color[3]];
} elseif (isset($color[2])) {
$type = "rgb";
list($c1, $c2, $c3, $c4) = [$color[0], $color[1], $color[2], null];
} else {
$type = "gray";
list($c1, $c2, $c3, $c4) = [$color[0], $color[1], null, null];
}
$this->_set_stroke_opacity($alpha, "Normal");
$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)
{
// TODO: we should check the current PDF fill color
// instead of the cached value
if ($this->_last_fill_color == $color) {
// FIXME: do nothing, this optimization is broken by the
// fill being set as a side effect of other operations
//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, $c4) = [$color[0], $color[1], $color[2], $color[3]];
} elseif (isset($color[2])) {
$type = "rgb";
list($c1, $c2, $c3, $c4) = [$color[0], $color[1], $color[2], null];
} else {
$type = "gray";
list($c1, $c2, $c3, $c4) = [$color[0], $color[1], null, null];
}
$this->_set_fill_opacity($alpha, "Normal");
$this->_pdf->setcolor("fill", $type, $c1, $c2, $c3, $c4);
}
/**
* Sets the fill opacity
*
* @param float $opacity
* @param string $mode
*/
public function _set_fill_opacity($opacity, $mode = "Normal")
{
if ($mode === "Normal" && isset($opacity)) {
$this->_set_gstate("opacityfill=$opacity");
}
}
/**
* Sets the stroke opacity
*
* @param float $opacity
* @param string $mode
*/
public function _set_stroke_opacity($opacity, $mode = "Normal")
{
if ($mode === "Normal" && isset($opacity)) {
$this->_set_gstate("opacitystroke=$opacity");
}
}
public function set_opacity(float $opacity, string $mode = "Normal"): void
{
if ($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, $options = [])
{
// TODO
// http://www.pdflib.com/fileadmin/pdflib/pdf/manuals/PDFlib-8.0.2-API-reference.pdf
/**
* fitheight Fit the page height to the window, with the x coordinate left at the left edge of the window.
* fitrect Fit the rectangle specified by left, bottom, right, and top to the window.
* fitvisible Fit the visible contents of the page (the ArtBox) to the window.
* fitvisibleheight Fit the visible contents of the page to the window with the x coordinate left at the left edge of the window.
* fitvisiblewidth Fit the visible contents of the page to the window with the y coordinate top at the top edge of the window.
* fitwidth Fit the page width to the window, with the y coordinate top at the top edge of the window.
* fitwindow Fit the complete page to the window.
* fixed
*/
//$this->setPDFLibParameter("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 = "")
{
// Fix for PDFLibs case-sensitive font names
$baseFont = basename($font);
$isNativeFont = false;
if (isset(self::$nativeFontsTpPDFLib[$baseFont])) {
$font = self::$nativeFontsTpPDFLib[$baseFont];
$isNativeFont = true;
}
// Check if the font is a native PDF font
// Embed non-native fonts
$test = strtolower($baseFont);
if (in_array($test, DOMPDF::$nativeFonts)) {
$font = basename($font);
} else {
// Embed non-native fonts
$options .= " embedding=true";
}
$options .= " autosubsetting=" . ($this->_dompdf->getOptions()->getIsFontSubsettingEnabled() === false ? "false" : "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];
}
// Native fonts are build in, just load it
if ($isNativeFont) {
$this->_fonts[$key] = $this->_pdf->load_font($font, $encoding, $options);
return $this->_fonts[$key];
}
$fontOutline = $this->getPDFLibParameter("FontOutline", 1);
if ($fontOutline === "" || $fontOutline <= 0) {
$families = $this->_dompdf->getFontMetrics()->getFontFamilies();
foreach ($families as $files) {
foreach ($files as $file) {
$face = basename($file);
$afm = null;
if (isset($this->_fontsFiles[$face])) {
continue;
}
// Prefer ttfs to afms
if (file_exists("$file.ttf")) {
$outline = "$file.ttf";
} elseif (file_exists("$file.TTF")) {
$outline = "$file.TTF";
} elseif (file_exists("$file.pfb")) {
$outline = "$file.pfb";
if (file_exists("$file.afm")) {
$afm = "$file.afm";
}
} elseif (file_exists("$file.PFB")) {
$outline = "$file.PFB";
if (file_exists("$file.AFM")) {
$afm = "$file.AFM";
}
} else {
continue;
}
$this->_fontsFiles[$face] = true;
if ($this->getPDFLibMajorVersion() >= 9) {
$this->setPDFLibParameter("FontOutline", '{' . "$face=$outline" . '}');
} else {
$this->setPDFLibParameter("FontOutline", "\{$face\}=\{$outline\}");
}
if (is_null($afm)) {
continue;
}
if ($this->getPDFLibMajorVersion() >= 9) {
$this->setPDFLibParameter("FontAFM", '{' . "$face=$afm" . '}');
} else {
$this->setPDFLibParameter("FontAFM", "\{$face\}=\{$afm\}");
}
}
}
}
$this->_fonts[$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 - $y;
}
public function line($x1, $y1, $x2, $y2, $color, $width, $style = [], $cap = "butt")
{
$this->_set_line_style($width, $cap, "", $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();
$this->_set_stroke_opacity($this->_current_opacity, "Normal");
}
public function arc($x, $y, $r1, $r2, $astart, $aend, $color, $width, $style = [], $cap = "butt")
{
$this->_set_line_style($width, $cap, "", $style);
$this->_set_stroke_color($color);
$y = $this->y($y);
$this->_pdf->arc($x, $y, $r1, $astart, $aend);
$this->_pdf->stroke();
$this->_set_stroke_opacity($this->_current_opacity, "Normal");
}
public function rectangle($x1, $y1, $w, $h, $color, $width, $style = [], $cap = "butt")
{
$this->_set_stroke_color($color);
$this->_set_line_style($width, $cap, "", $style);
$y1 = $this->y($y1) - $h;
$this->_pdf->rect($x1, $y1, $w, $h);
$this->_pdf->stroke();
$this->_set_stroke_opacity($this->_current_opacity, "Normal");
}
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();
$this->_set_fill_opacity($this->_current_opacity, "Normal");
}
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));
$this->_pdf->clip();
}
public function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL)
{
if ($this->getPDFLibMajorVersion() < 9) {
//TODO: add PDFLib7 support
$this->clipping_rectangle($x1, $y1, $w, $h);
return;
}
$this->_pdf->save();
// we use 0,0 for the base coordinates for the path points
// since we're drawing the path at the $x1,$y1 coordinates
$path = 0;
//start: left edge, top end
$path = $this->_pdf->add_path_point($path, 0, 0 - $rTL + $h, "move", "");
// line: left edge, bottom end
$path = $this->_pdf->add_path_point($path, 0, 0 + $rBL, "line", "");
// curve: bottom-left corner
if ($rBL > 0) {
$path = $this->_pdf->add_path_point($path, 0 + $rBL, 0, "elliptical", "radius=$rBL clockwise=false");
}
// line: bottom edge, left end
$path = $this->_pdf->add_path_point($path, 0 - $rBR + $w, 0, "line", "");
// curve: bottom-right corner
if ($rBR > 0) {
$path = $this->_pdf->add_path_point($path, 0 + $w, 0 + $rBR, "elliptical", "radius=$rBR clockwise=false");
}
// line: right edge, top end
$path = $this->_pdf->add_path_point($path, 0 + $w, 0 - $rTR + $h, "line", "");
// curve: top-right corner
if ($rTR > 0) {
$path = $this->_pdf->add_path_point($path, 0 - $rTR + $w, 0 + $h, "elliptical", "radius=$rTR clockwise=false");
}
// line: top edge, left end
$path = $this->_pdf->add_path_point($path, 0 + $rTL, 0 + $h, "line", "");
// curve: top-left corner
if ($rTL > 0) {
$path = $this->_pdf->add_path_point($path, 0, 0 - $rTL + $h, "elliptical", "radius=$rTL clockwise=false");
}
$this->_pdf->draw_path($path, $x1, $this->_height-$y1-$h, "clip=true");
}
public function clipping_polygon(array $points): void
{
$this->_pdf->save();
$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);
}
$this->_pdf->closepath();
$this->_pdf->clip();
}
public function clipping_end()
{
$this->_pdf->restore();
}
public function save()
{
$this->_pdf->save();
}
function restore()
{
$this->_pdf->restore();
}
public function rotate($angle, $x, $y)
{
$pdf = $this->_pdf;
$pdf->translate($x, $this->_height - $y);
$pdf->rotate(-$angle);
$pdf->translate(-$x, -$this->_height + $y);
}
public function skew($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 + $y);
}
public function scale($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 + $y);
}
public function translate($t_x, $t_y)
{
$this->_pdf->translate($t_x, -$t_y);
}
public function transform($a, $b, $c, $d, $e, $f)
{
$this->_pdf->concat($a, $b, $c, $d, $e, $f);
}
public function polygon($points, $color, $width = null, $style = [], $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();
}
$this->_set_fill_opacity($this->_current_opacity, "Normal");
$this->_set_stroke_opacity($this->_current_opacity, "Normal");
}
public function circle($x, $y, $r, $color, $width = null, $style = [], $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();
}
$this->_set_fill_opacity($this->_current_opacity, "Normal");
$this->_set_stroke_opacity($this->_current_opacity, "Normal");
}
public function image($img, $x, $y, $w, $h, $resolution = "normal")
{
$w = (int)$w;
$h = (int)$h;
$img_type = Cache::detect_type($img, $this->get_dompdf()->getHttpContext());
// Strip file:// prefix
if (substr($img, 0, 7) === "file://") {
$img = substr($img, 7);
}
if (!isset($this->_imgs[$img])) {
if (strtolower($img_type) === "svg") {
//FIXME: PDFLib loads SVG but returns error message "Function must not be called in 'page' scope"
$image_load_response = $this->_pdf->load_graphics($img_type, $img, "");
} else {
$image_load_response = $this->_pdf->load_image($img_type, $img, "");
}
if ($image_load_response === 0) {
//TODO: should do something with the error message
$error = $this->_pdf->get_errmsg();
return;
}
$this->_imgs[$img] = $image_load_response;
}
$img = $this->_imgs[$img];
$y = $this->y($y) - $h;
if (strtolower($img_type) === "svg") {
$this->_pdf->fit_graphics($img, $x, $y, 'boxsize={' . "$w $h" . '} fitmethod=entire');
} else {
$this->_pdf->fit_image($img, $x, $y, 'boxsize={' . "$w $h" . '} fitmethod=entire');
}
}
public function text($x, $y, $text, $font, $size, $color = [0, 0, 0], $word_spacing = 0, $char_spacing = 0, $angle = 0)
{
if ($size == 0) {
return;
}
$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 ");
$this->_set_fill_opacity($this->_current_opacity, "Normal");
}
public function javascript($code)
{
if (strlen($this->_dompdf->getOptions()->getPdflibLicense()) > 0) {
$this->_pdf->create_action("JavaScript", $code);
}
}
public function add_named_dest($anchorname)
{
$this->_pdf->add_nameddest($anchorname, "");
}
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 {
//TODO: PDFLib::create_action does not permit non-HTTP links for URI actions
$action = $this->_pdf->create_action("URI", "url={{$url}}");
// add the annotation only if the action was created
if ($action !== 0) {
$this->_pdf->create_annotation($x, $y, $x + $width, $y + $height, 'Link', "contents={{$url}} action={activate=$action} linewidth=0");
}
}
}
public function get_text_width($text, $font, $size, $word_spacing = 0.0, $letter_spacing = 0.0)
{
if ($size == 0) {
return 0.0;
}
$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 * $letter_spacing;
}
return $this->_pdf->stringwidth($text, $fh, $size) + $delta;
}
public function get_font_height($font, $size)
{
if ($size == 0) {
return 0.0;
}
$fh = $this->_load_font($font);
$this->_pdf->setfont($fh, $size);
$asc = $this->_pdf->info_font($fh, "ascender", "fontsize=$size");
$desc = $this->_pdf->info_font($fh, "descender", "fontsize=$size");
// $desc is usually < 0,
$ratio = $this->_dompdf->getOptions()->getFontHeightRatio();
return (abs($asc) + abs($desc)) * $ratio;
}
public function get_font_baseline($font, $size)
{
$ratio = $this->_dompdf->getOptions()->getFontHeightRatio();
return $this->get_font_height($font, $size) / $ratio * 1.1;
}
/**
* Processes a callback or script on every page.
*
* The callback function receives the four parameters `int $pageNumber`,
* `int $pageCount`, `Canvas $canvas`, and `FontMetrics $fontMetrics`, in
* that order. If a script is passed as string, the variables `$PAGE_NUM`,
* `$PAGE_COUNT`, `$pdf`, and `$fontMetrics` are available instead. Passing
* a script as string is deprecated and will be removed in a future version.
*
* This function can be used to add page numbers to all pages after the
* first one, for example.
*
* @param callable|string $callback The callback function or PHP script to process on every page
*/
public function page_script($callback): void
{
if (is_string($callback)) {
$this->processPageScript(function (
int $PAGE_NUM,
int $PAGE_COUNT,
self $pdf,
FontMetrics $fontMetrics
) use ($callback) {
eval($callback);
});
return;
}
$this->processPageScript($callback);
}
public function page_text($x, $y, $text, $font, $size, $color = [0, 0, 0], $word_space = 0.0, $char_space = 0.0, $angle = 0.0)
{
$this->processPageScript(function (int $pageNumber, int $pageCount) use ($x, $y, $text, $font, $size, $color, $word_space, $char_space, $angle) {
$text = str_replace(
["{PAGE_NUM}", "{PAGE_COUNT}"],
[$pageNumber, $pageCount],
$text
);
$this->text($x, $y, $text, $font, $size, $color, $word_space, $char_space, $angle);
});
}
public function page_line($x1, $y1, $x2, $y2, $color, $width, $style = [])
{
$this->processPageScript(function () use ($x1, $y1, $x2, $y2, $color, $width, $style) {
$this->line($x1, $y1, $x2, $y2, $color, $width, $style);
});
}
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;
}
protected function processPageScript(callable $callback): void
{
$this->_pdf->suspend_page("");
for ($p = 1; $p <= $this->_page_count; $p++) {
$this->_pdf->resume_page("pagenumber=$p");
$fontMetrics = $this->_dompdf->getFontMetrics();
$callback($p, $this->_page_count, $this, $fontMetrics);
$this->_pdf->suspend_page("");
}
$this->_pdf->resume_page("pagenumber=" . $this->_page_number);
}
/**
* @throws Exception
*/
public function stream($filename = "document.pdf", $options = [])
{
if (headers_sent()) {
die("Unable to stream pdf: headers already sent");
}
if (!isset($options["compress"])) {
$options["compress"] = true;
}
if (!isset($options["Attachment"])) {
$options["Attachment"] = true;
}
if ($options["compress"]) {
$this->setPDFLibValue("compress", 6);
} else {
$this->setPDFLibValue("compress", 0);
}
$this->_close();
$data = "";
if (self::$IN_MEMORY) {
$data = $this->_pdf->get_buffer();
$size = mb_strlen($data, "8bit");
} else {
$size = filesize($this->_file);
}
header("Cache-Control: private");
header("Content-Type: application/pdf");
header("Content-Length: " . $size);
$filename = str_replace(["\n", "'"], "", basename($filename, ".pdf")) . ".pdf";
$attachment = $options["Attachment"] ? "attachment" : "inline";
header(Helpers::buildContentDispositionHeader($attachment, $filename));
if (self::$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();
}
public function output($options = [])
{
if (!isset($options["compress"])) {
$options["compress"] = true;
}
if ($options["compress"]) {
$this->setPDFLibValue("compress", 6);
} else {
$this->setPDFLibValue("compress", 0);
}
$this->_close();
if (self::$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;
}
/**
* @param string $keyword
* @param string $optlist
* @return mixed
*/
protected function getPDFLibParameter($keyword, $optlist = "")
{
if ($this->getPDFLibMajorVersion() >= 9) {
return $this->_pdf->get_option($keyword, "");
}
return $this->_pdf->get_parameter($keyword, $optlist);
}
/**
* @param string $keyword
* @param string $value
* @return mixed
*/
protected function setPDFLibParameter($keyword, $value)
{
if ($this->getPDFLibMajorVersion() >= 9) {
return $this->_pdf->set_option($keyword . "=" . $value);
}
return $this->_pdf->set_parameter($keyword, $value);
}
/**
* @param string $keyword
* @param string $optlist
* @return mixed
*/
protected function getPDFLibValue($keyword, $optlist = "")
{
if ($this->getPDFLibMajorVersion() >= 9) {
return $this->getPDFLibParameter($keyword, $optlist);
}
return $this->_pdf->get_value($keyword);
}
/**
* @param string $keyword
* @param string $value
* @return mixed
*/
protected function setPDFLibValue($keyword, $value)
{
if ($this->getPDFLibMajorVersion() >= 9) {
return $this->setPDFLibParameter($keyword, $value);
}
return $this->_pdf->set_value($keyword, $value);
}
/**
* @return int
*/
protected function getPDFLibMajorVersion()
{
if (is_null(self::$MAJOR_VERSION)) {
if (method_exists($this->_pdf, "get_option")) {
self::$MAJOR_VERSION = abs(intval($this->_pdf->get_option("major", "")));
} else {
self::$MAJOR_VERSION = abs(intval($this->_pdf->get_value("major", "")));
}
}
return self::$MAJOR_VERSION;
}
}
// Workaround for idiotic limitation on statics...
PDFLib::$PAPER_SIZES = CPDF::$PAPER_SIZES;
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