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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\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; / 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 array / 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; /* * Text to display on every page * * @var array / protected $_page_text; /* * Array of pages for accesing after rendering is initially complete * * @var array / protected $_pages; /* * Class constructor * * @param string\|array $paper The size of paper to use either a string (see {@link Dompdf\Adapter\CPDF::$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 = $paper; } elseif (isset(self::$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], $size[3]) = [$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->setPDFLibParameter("license", $license); } $this->setPDFLibParameter("textformat", "utf8"); if ($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->_page_text = []; $this->_imgs = []; $this->_fonts = []; $this->_objs = []; } /* * @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::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, ""); } } } /* * @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, $dash) { if (!is_array($dash)) { $dash = array(); } if (count($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 $opacity * @param $mode / public function _set_fill_opacity($opacity, $mode = "Normal") { if ($mode === "Normal" && is_null($opacity) === false) { $this->_set_gstate("opacityfill=$opacity"); } } /* * Sets the stroke opacity * * @param $opacity * @param $mode / public function _set_stroke_opacity($opacity, $mode = "Normal") { if ($mode === "Normal" && is_null($opacity) === false) { $this->_set_gstate("opacitystroke=$opacity"); } } /* * Sets the opacity * * @param $opacity * @param $mode / public function set_opacity($opacity, $mode = "Normal") { if ($mode === "Normal" && is_null($opacity) === false) { $this->_set_gstate("opacityfill=$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; } /* * @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(); $this->_set_stroke_opacity($this->_current_opacity, "Normal"); } /* * Draw line at the specified coordinates on every page. * * See {@link Style::munge_color()} for the format of the colour array. * * @param float $x1 * @param float $y1 * @param float $x2 * @param float $y2 * @param array $color * @param float $width * @param array $style optional / public function page_line($x1, $y1, $x2, $y2, $color, $width, $style = []) { $_t = 'line'; $this->_page_text[] = compact('_t', 'x1', 'y1', 'x2', 'y2', 'color', 'width', 'style'); } /* * @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 = []) { $this->_set_line_style($width, "butt", "", $style); $this->_set_stroke_color($color); $y1 = $this->y($y1); $this->_pdf->arc($x1, $y1, $r1, $astart, $aend); $this->_pdf->stroke(); $this->_set_stroke_opacity($this->_current_opacity, "Normal"); } /* * @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(); $this->_set_stroke_opacity($this->_current_opacity, "Normal"); } /* * @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(); $this->_set_fill_opacity($this->_current_opacity, "Normal"); } /* * @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, $rBL) { if ($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 $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 $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 $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 $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_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(); } $this->_set_fill_opacity($this->_current_opacity, "Normal"); $this->_set_stroke_opacity($this->_current_opacity, "Normal"); } /* * @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(); } $this->_set_fill_opacity($this->_current_opacity, "Normal"); $this->_set_stroke_opacity($this->_current_opacity, "Normal"); } /* * @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[$img_url])) { if (strtolower($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_url, ""); } else { $image_load_response = $this->_pdf->load_image($img_type, $img_url, ""); } if ($image_load_response === 0) { //TODO: should do something with the error message $error = $this->_pdf->get_errmsg(); return; } $this->_imgs[$img_url] = $image_load_response; } $img = $this->_imgs[$img_url]; $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'); } } /* * @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 = [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 "); $this->_set_fill_opacity($this->_current_opacity, "Normal"); } /* * @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 = $this->_pdf->info_font($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; } /** * @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 = [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) === 0) { 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": $text = str_replace(["{PAGE_NUM}", "{PAGE_COUNT}"], [$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, ['PAGE_NUM' => $p, 'PAGE_COUNT' => $this->_page_count]); break; case 'line': $this->line( $x1, $y1, $x2, $y2, $color, $width, $style ); break; } } $this->_pdf->suspend_page(""); } $this->_pdf->resume_page("pagenumber=" . $this->_page_number); } /* * Streams the PDF to the client. * * @param string $filename The filename to present to the client. * @param array $options Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1). * @throws Exception / public function stream($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; } $this->_add_page_text(); if ($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(); } /* * Returns the PDF as a string. * * @param array $options Associative array: 'compress' => 1 or 0 (default 1). * @return string / public function output($options = []) { if (!isset($options["compress"])) { $options["compress"] = true; } $this->_add_page_text(); if ($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; Back

Edit File : PDFLib.php | Size : 46.67 KB

<?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\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;
     */
    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 array
     */
    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;

/**
     * Text to display on every page
     *
     * @var array
     */
    protected $_page_text;

/**
     * Array of pages for accesing after rendering is initially complete
     *
     * @var array
     */
    protected $_pages;

/**
     * Class constructor
     *
     * @param string|array $paper The size of paper to use either a string (see {@link Dompdf\Adapter\CPDF::$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 = $paper;
        } elseif (isset(self::$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], $size[3]) = [$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->setPDFLibParameter("license", $license);
        }

$this->setPDFLibParameter("textformat", "utf8");
        if ($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->_page_text = [];

$this->_imgs = [];
        $this->_fonts = [];
        $this->_objs = [];
    }

/**
     * @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::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, "");
            }
        }
    }

/**
     * @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, $dash)
    {
        if (!is_array($dash)) {
            $dash = array();
        }

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;

$this->_set_fill_opacity($alpha, "Normal");
        $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" && is_null($opacity) === false) {
            $this->_set_gstate("opacityfill=$opacity");
        }
    }

/**
     * Sets the stroke opacity
     *
     * @param $opacity
     * @param $mode
     */
    public function _set_stroke_opacity($opacity, $mode = "Normal")
    {
        if ($mode === "Normal" && is_null($opacity) === false) {
            $this->_set_gstate("opacitystroke=$opacity");
        }
    }

/**
     * Sets the opacity
     *
     * @param $opacity
     * @param $mode
     */
    public function set_opacity($opacity, $mode = "Normal")
    {
        if ($mode === "Normal" && is_null($opacity) === false) {
            $this->_set_gstate("opacityfill=$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;
    }

/**
     * @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();

$this->_set_stroke_opacity($this->_current_opacity, "Normal");
    }

/**
     * Draw line at the specified coordinates on every page.
     *
     * See {@link Style::munge_color()} for the format of the colour array.
     *
     * @param float $x1
     * @param float $y1
     * @param float $x2
     * @param float $y2
     * @param array $color
     * @param float $width
     * @param array $style optional
     */
    public function page_line($x1, $y1, $x2, $y2, $color, $width, $style = [])
    {
        $_t = 'line';
        $this->_page_text[] = compact('_t', 'x1', 'y1', 'x2', 'y2', 'color', 'width', 'style');
    }

/**
     * @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 = [])
    {
        $this->_set_line_style($width, "butt", "", $style);
        $this->_set_stroke_color($color);

$y1 = $this->y($y1);

$this->_pdf->arc($x1, $y1, $r1, $astart, $aend);
        $this->_pdf->stroke();

$this->_set_stroke_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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();

$this->_set_stroke_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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();

$this->_set_fill_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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, $rBL)
    {
        if ($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
        $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
        $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
        $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
        $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_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();
        }

$this->_set_fill_opacity($this->_current_opacity, "Normal");
        $this->_set_stroke_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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();
        }

$this->_set_fill_opacity($this->_current_opacity, "Normal");
        $this->_set_stroke_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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])) {
            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_url, "");
            } else {
                $image_load_response = $this->_pdf->load_image($img_type, $img_url, "");
            }
            if ($image_load_response === 0) {
                //TODO: should do something with the error message
                $error = $this->_pdf->get_errmsg();
                return;
            }
            $this->_imgs[$img_url] = $image_load_response;
        }

$img = $this->_imgs[$img_url];

$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');
        }
    }

/**
     * @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 = [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 ");

$this->_set_fill_opacity($this->_current_opacity, "Normal");
    }

/**
     * @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 = $this->_pdf->info_font($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;
    }

/**
     * @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 = [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) === 0) {
            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":
                        $text = str_replace(["{PAGE_NUM}", "{PAGE_COUNT}"],
                            [$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, ['PAGE_NUM' => $p, 'PAGE_COUNT' => $this->_page_count]);
                        break;

case 'line':
                        $this->line( $x1, $y1, $x2, $y2, $color, $width, $style );
                        break;

}
            }

$this->_pdf->suspend_page("");
        }

$this->_pdf->resume_page("pagenumber=" . $this->_page_number);
    }

/**
     * Streams the PDF to the client.
     *
     * @param string $filename The filename to present to the client.
     * @param array  $options  Associative array: 'compress' => 1 or 0 (default 1); 'Attachment' => 1 or 0 (default 1).
     * @throws Exception
     */
    public function stream($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;
        }

$this->_add_page_text();

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();
    }

/**
     * Returns the PDF as a string.
     *
     * @param array $options Associative array: 'compress' => 1 or 0 (default 1).
     * @return string
     */
    public function output($options = [])
    {
        if (!isset($options["compress"])) {
            $options["compress"] = true;
        }

$this->_add_page_text();

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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