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<?php /** * @package dompdf * @link http://dompdf.github.com/ * @author Benj Carson <benjcarson@digitaljunkies.ca> * @author Orion Richardson <orionr@yahoo.com> * @author Helmut Tischer <htischer@weihenstephan.org> * @author Fabien Ménager <fabien.menager@gmail.com> * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License / // FIXME: Need to sanity check inputs to this class 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\CPDF provides a simple stateless interface to the stateful one * provided by the Cpdf class. * * 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.ros.co.nz/pdf/} for more complete documentation * on the underlying {@link Cpdf} class. * * @package dompdf / class CPDF implements Canvas { /* * Dimensions of paper sizes in points * * @var array; / static $PAPER_SIZES = array( "4a0" => array(0, 0, 4767.87, 6740.79), "2a0" => array(0, 0, 3370.39, 4767.87), "a0" => array(0, 0, 2383.94, 3370.39), "a1" => array(0, 0, 1683.78, 2383.94), "a2" => array(0, 0, 1190.55, 1683.78), "a3" => array(0, 0, 841.89, 1190.55), "a4" => array(0, 0, 595.28, 841.89), "a5" => array(0, 0, 419.53, 595.28), "a6" => array(0, 0, 297.64, 419.53), "a7" => array(0, 0, 209.76, 297.64), "a8" => array(0, 0, 147.40, 209.76), "a9" => array(0, 0, 104.88, 147.40), "a10" => array(0, 0, 73.70, 104.88), "b0" => array(0, 0, 2834.65, 4008.19), "b1" => array(0, 0, 2004.09, 2834.65), "b2" => array(0, 0, 1417.32, 2004.09), "b3" => array(0, 0, 1000.63, 1417.32), "b4" => array(0, 0, 708.66, 1000.63), "b5" => array(0, 0, 498.90, 708.66), "b6" => array(0, 0, 354.33, 498.90), "b7" => array(0, 0, 249.45, 354.33), "b8" => array(0, 0, 175.75, 249.45), "b9" => array(0, 0, 124.72, 175.75), "b10" => array(0, 0, 87.87, 124.72), "c0" => array(0, 0, 2599.37, 3676.54), "c1" => array(0, 0, 1836.85, 2599.37), "c2" => array(0, 0, 1298.27, 1836.85), "c3" => array(0, 0, 918.43, 1298.27), "c4" => array(0, 0, 649.13, 918.43), "c5" => array(0, 0, 459.21, 649.13), "c6" => array(0, 0, 323.15, 459.21), "c7" => array(0, 0, 229.61, 323.15), "c8" => array(0, 0, 161.57, 229.61), "c9" => array(0, 0, 113.39, 161.57), "c10" => array(0, 0, 79.37, 113.39), "ra0" => array(0, 0, 2437.80, 3458.27), "ra1" => array(0, 0, 1729.13, 2437.80), "ra2" => array(0, 0, 1218.90, 1729.13), "ra3" => array(0, 0, 864.57, 1218.90), "ra4" => array(0, 0, 609.45, 864.57), "sra0" => array(0, 0, 2551.18, 3628.35), "sra1" => array(0, 0, 1814.17, 2551.18), "sra2" => array(0, 0, 1275.59, 1814.17), "sra3" => array(0, 0, 907.09, 1275.59), "sra4" => array(0, 0, 637.80, 907.09), "letter" => array(0, 0, 612.00, 792.00), "legal" => array(0, 0, 612.00, 1008.00), "ledger" => array(0, 0, 1224.00, 792.00), "tabloid" => array(0, 0, 792.00, 1224.00), "executive" => array(0, 0, 521.86, 756.00), "folio" => array(0, 0, 612.00, 936.00), "commercial #10 envelope" => array(0, 0, 684, 297), "catalog #10 1/2 envelope" => array(0, 0, 648, 864), "8.5x11" => array(0, 0, 612.00, 792.00), "8.5x14" => array(0, 0, 612.00, 1008.0), "11x17" => array(0, 0, 792.00, 1224.00), ); /* * The Dompdf object * * @var Dompdf / private $_dompdf; /* * Instance of Cpdf class * * @var Cpdf / private $_pdf; /* * PDF width, in points * * @var float / private $_width; /* * PDF height, in points * * @var float; / private $_height; /* * Current page number * * @var int / private $_page_number; /* * Total number of pages * * @var int / private $_page_count; /* * Text to display on every page * * @var array / private $_page_text; /* * Array of pages for accesing after rendering is initially complete * * @var array / private $_pages; /* * Array of temporary cached images to be deleted when processing is complete * * @var array / private $_image_cache; /* * Class constructor * * @param mixed $paper The size of paper to use in this PDF ({@link CPDF::$PAPER_SIZES}) * @param string $orientation The orientation of the document (either 'landscape' or 'portrait') * @param Dompdf $dompdf The Dompdf instance / function __construct($paper = "letter", $orientation = "portrait", Dompdf $dompdf) { if (is_array($paper)) { $size = $paper; } else if (isset(self::$PAPER_SIZES[mb_strtolower($paper)])) { $size = self::$PAPER_SIZES[mb_strtolower($paper)]; } else { $size = self::$PAPER_SIZES["letter"]; } if (mb_strtolower($orientation) === "landscape") { list($size[2], $size[3]) = array($size[3], $size[2]); } $this->_dompdf = $dompdf; $this->_pdf = new \Cpdf( $size, true, $dompdf->get_option("font_cache"), $dompdf->get_option("temp_dir") ); $this->_pdf->addInfo("Producer", sprintf("%s + CPDF", $dompdf->version)); $time = substr_replace(date('YmdHisO'), '\'', -2, 0) . '\''; $this->_pdf->addInfo("CreationDate", "D:$time"); $this->_pdf->addInfo("ModDate", "D:$time"); $this->_width = $size[2] - $size[0]; $this->_height = $size[3] - $size[1]; $this->_page_number = $this->_page_count = 1; $this->_page_text = array(); $this->_pages = array($this->_pdf->getFirstPageId()); $this->_image_cache = array(); } function get_dompdf() { return $this->_dompdf; } /* * Class destructor * * Deletes all temporary image files / function __destruct() { foreach ($this->_image_cache as $img) { // The file might be already deleted by 3rd party tmp cleaner, // the file might not have been created at all // (if image outputting commands failed) // or because the destructor was called twice accidentally. if (!file_exists($img)) { continue; } if ($this->_dompdf->get_option("debugPng")) print '[__destruct unlink ' . $img . ']'; if (!$this->_dompdf->get_option("debugKeepTemp")) unlink($img); } } /* * Returns the Cpdf instance * * @return \Cpdf / function get_cpdf() { return $this->_pdf; } /* * Add meta information to the PDF * * @param string $label label of the value (Creator, Producer, etc.) * @param string $value the text to set / function add_info($label, $value) { $this->_pdf->addInfo($label, $value); } /* * Opens a new 'object' * * While an object is open, all drawing actions are recored in the object, * as opposed to 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 CPDF_Adapter::close_object() * @see CPDF_Adapter::add_object() * * @return int / function open_object() { $ret = $this->_pdf->openObject(); $this->_pdf->saveState(); return $ret; } /* * Reopens an existing 'object' * * @see CPDF_Adapter::open_object() * @param int $object the ID of a previously opened object / function reopen_object($object) { $this->_pdf->reopenObject($object); $this->_pdf->saveState(); } /* * Closes the current 'object' * * @see CPDF_Adapter::open_object() / function close_object() { $this->_pdf->restoreState(); $this->_pdf->closeObject(); } /* * Adds a specified 'object' to the document * * $object int specifying an object created with {@link * CPDF::open_object()}. $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 * * @see Cpdf::addObject() * * @param int $object * @param string $where / function add_object($object, $where = 'all') { $this->_pdf->addObject($object, $where); } /* * Stops the specified 'object' from appearing in the document. * * The object will stop being displayed on the page following the current * one. * * @param int $object / function stop_object($object) { $this->_pdf->stopObject($object); } /* * @access private / function serialize_object($id) { // Serialize the pdf object's current state for retrieval later return $this->_pdf->serializeObject($id); } /* * @access private / function reopen_serialized_object($obj) { return $this->_pdf->restoreSerializedObject($obj); } //........................................................................ /* * Returns the PDF's width in points * @return float / function get_width() { return $this->_width; } /* * Returns the PDF's height in points * @return float / function get_height() { return $this->_height; } /* * Returns the current page number * @return int / function get_page_number() { return $this->_page_number; } /* * Returns the total number of pages in the document * @return int / function get_page_count() { return $this->_page_count; } /* * Sets the current page number * * @param int $num / function set_page_number($num) { $this->_page_number = $num; } /* * Sets the page count * * @param int $count / function set_page_count($count) { $this->_page_count = $count; } /* * Sets the stroke color * * See {@link Style::set_color()} for the format of the color array. * @param array $color / protected function _set_stroke_color($color) { $this->_pdf->setStrokeColor($color); } /* * Sets the fill colour * * See {@link Style::set_color()} for the format of the colour array. * @param array $color / protected function _set_fill_color($color) { $this->_pdf->setColor($color); } /* * Sets line transparency * @see Cpdf::setLineTransparency() * * Valid blend modes are (case-sensitive): * * Normal, Multiply, Screen, Overlay, Darken, Lighten, * ColorDodge, ColorBurn, HardLight, SoftLight, Difference, * Exclusion * * @param string $mode the blending mode to use * @param float $opacity 0.0 fully transparent, 1.0 fully opaque / protected function _set_line_transparency($mode, $opacity) { $this->_pdf->setLineTransparency($mode, $opacity); } /* * Sets fill transparency * @see Cpdf::setFillTransparency() * * Valid blend modes are (case-sensitive): * * Normal, Multiply, Screen, Overlay, Darken, Lighten, * ColorDogde, ColorBurn, HardLight, SoftLight, Difference, * Exclusion * * @param string $mode the blending mode to use * @param float $opacity 0.0 fully transparent, 1.0 fully opaque / protected function _set_fill_transparency($mode, $opacity) { $this->_pdf->setFillTransparency($mode, $opacity); } /* * Sets the line style * * @see Cpdf::setLineStyle() * * @param float $width * @param string $cap * @param string $join * @param array $dash / protected function _set_line_style($width, $cap, $join, $dash) { $this->_pdf->setLineStyle($width, $cap, $join, $dash); } /* * Sets the opacity * * @param $opacity * @param $mode / function set_opacity($opacity, $mode = "Normal") { $this->_set_line_transparency($mode, $opacity); $this->_set_fill_transparency($mode, $opacity); } function set_default_view($view, $options = array()) { array_unshift($options, $view); call_user_func_array(array($this->_pdf, "openHere"), $options); } /* * Remaps y coords from 4th to 1st quadrant * * @param float $y * @return float / protected function y($y) { return $this->_height - $y; } // Canvas implementation function line($x1, $y1, $x2, $y2, $color, $width, $style = array()) { $this->_set_stroke_color($color); $this->_set_line_style($width, "butt", "", $style); $this->_pdf->line($x1, $this->y($y1), $x2, $this->y($y2)); } function arc($x, $y, $r1, $r2, $astart, $aend, $color, $width, $style = array()) { $this->_set_stroke_color($color); $this->_set_line_style($width, "butt", "", $style); $this->_pdf->ellipse($x, $this->y($y), $r1, $r2, 0, 8, $astart, $aend, false, false, true, false); } //........................................................................ /* * Convert a GIF or BMP image to a PNG image * * @param string $image_url * @param integer $type * * @throws Exception * @return string The url of the newly converted image / protected function _convert_gif_bmp_to_png($image_url, $type) { $func_name = "imagecreatefrom$type"; if (!function_exists($func_name)) { if (!method_exists("Dompdf\Helpers", $func_name)) { throw new Exception("Function $func_name() not found. Cannot convert $type image: $image_url. Please install the image PHP extension."); } $func_name = "\\Dompdf\\Helpers::" . $func_name; } set_error_handler(array("\\Dompdf\\Helpers", "record_warnings")); $im = call_user_func($func_name, $image_url); if ($im) { imageinterlace($im, false); $tmp_dir = $this->_dompdf->get_option("temp_dir"); $tmp_name = tempnam($tmp_dir, "{$type}dompdf_img_"); @unlink($tmp_name); $filename = "$tmp_name.png"; $this->_image_cache[] = $filename; imagepng($im, $filename); imagedestroy($im); } else { $filename = Cache::$broken_image; } restore_error_handler(); return $filename; } function rectangle($x1, $y1, $w, $h, $color, $width, $style = array()) { $this->_set_stroke_color($color); $this->_set_line_style($width, "butt", "", $style); $this->_pdf->rectangle($x1, $this->y($y1) - $h, $w, $h); } function filled_rectangle($x1, $y1, $w, $h, $color) { $this->_set_fill_color($color); $this->_pdf->filledRectangle($x1, $this->y($y1) - $h, $w, $h); } function clipping_rectangle($x1, $y1, $w, $h) { $this->_pdf->clippingRectangle($x1, $this->y($y1) - $h, $w, $h); } function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL) { $this->_pdf->clippingRectangleRounded($x1, $this->y($y1) - $h, $w, $h, $rTL, $rTR, $rBR, $rBL); } function clipping_end() { $this->_pdf->clippingEnd(); } function save() { $this->_pdf->saveState(); } function restore() { $this->_pdf->restoreState(); } function rotate($angle, $x, $y) { $this->_pdf->rotate($angle, $x, $y); } function skew($angle_x, $angle_y, $x, $y) { $this->_pdf->skew($angle_x, $angle_y, $x, $y); } function scale($s_x, $s_y, $x, $y) { $this->_pdf->scale($s_x, $s_y, $x, $y); } function translate($t_x, $t_y) { $this->_pdf->translate($t_x, $t_y); } function transform($a, $b, $c, $d, $e, $f) { $this->_pdf->transform(array($a, $b, $c, $d, $e, $f)); } function polygon($points, $color, $width = null, $style = array(), $fill = false) { $this->_set_fill_color($color); $this->_set_stroke_color($color); // Adjust y values for ($i = 1; $i < count($points); $i += 2) { $points[$i] = $this->y($points[$i]); } $this->_pdf->polygon($points, count($points) / 2, $fill); } function circle($x, $y, $r1, $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); } $this->_pdf->ellipse($x, $this->y($y), $r1, 0, 0, 8, 0, 360, 1, $fill); } function image($img, $x, $y, $w, $h, $resolution = "normal") { list($width, $height, $type) = Helpers::dompdf_getimagesize($img, $this->get_dompdf()->getHttpContext()); $debug_png = $this->_dompdf->get_option("debug_png"); if ($debug_png) print "[image:$img\|$width\|$height\|$type]"; switch ($type) { case "jpeg": if ($debug_png) print '!!!jpg!!!'; $this->_pdf->addJpegFromFile($img, $x, $this->y($y) - $h, $w, $h); break; case "gif": case "bmp": if ($debug_png) print '!!!bmp or gif!!!'; // @todo use cache for BMP and GIF $img = $this->_convert_gif_bmp_to_png($img, $type); case "png": if ($debug_png) print '!!!png!!!'; $this->_pdf->addPngFromFile($img, $x, $this->y($y) - $h, $w, $h); break; case "svg": if ($debug_png) print '!!!SVG!!!'; $this->_pdf->addSvgFromFile($img, $x, $this->y($y) - $h, $w, $h); break; default: if ($debug_png) print '!!!unknown!!!'; } } function text($x, $y, $text, $font, $size, $color = array(0, 0, 0), $word_space = 0.0, $char_space = 0.0, $angle = 0.0) { $pdf = $this->_pdf; $pdf->setColor($color); $font .= ".afm"; $pdf->selectFont($font); //FontMetrics::getFontHeight($font, $size) == //$this->getFontHeight($font, $size) == //$this->_pdf->selectFont($font),$this->_pdf->getFontHeight($size) //- FontBBoxheight+FontHeightOffset, scaled to $size, in pt //$this->_pdf->getFontDescender($size) //- Descender scaled to size // //$this->_pdf->fonts[$this->_pdf->currentFont] sizes: //['FontBBox'][0] left, ['FontBBox'][1] bottom, ['FontBBox'][2] right, ['FontBBox'][3] top //Maximum extent of all glyphs of the font from the baseline point //['Ascender'] maximum height above baseline except accents //['Descender'] maximum depth below baseline, negative number means below baseline //['FontHeightOffset'] manual enhancement of .afm files to trim windows fonts. currently not used. //Values are in 1/1000 pt for a font size of 1 pt // //['FontBBox'][1] should be close to ['Descender'] //['FontBBox'][3] should be close to ['Ascender']+Accents //in practice, FontBBox values are a little bigger // //The text position is referenced to the baseline, not to the lower corner of the FontBBox, //for what the left,top corner is given. //FontBBox spans also the background box for the text. //If the lower corner would be used as reference point, the Descents of the glyphs would //hang over the background box border. //Therefore compensate only the extent above the Baseline. // //print '<pre>['.$font.','.$size.','.$pdf->getFontHeight($size).','.$pdf->getFontDescender($size).','.$pdf->fonts[$pdf->currentFont]['FontBBox'][3].','.$pdf->fonts[$pdf->currentFont]['FontBBox'][1].','.$pdf->fonts[$pdf->currentFont]['FontHeightOffset'].','.$pdf->fonts[$pdf->currentFont]['Ascender'].','.$pdf->fonts[$pdf->currentFont]['Descender'].']</pre>'; // //$pdf->addText($x, $this->y($y) - ($pdf->fonts[$pdf->currentFont]['FontBBox'][3]$size)/1000, $size, $text, $angle, $word_space, $char_space); $pdf->addText($x, $this->y($y) - $pdf->getFontHeight($size), $size, $text, $angle, $word_space, $char_space); } //........................................................................ function javascript($code) { $this->_pdf->addJavascript($code); } //........................................................................ /** * Add a named destination (similar to <a name="foo">...</a> in html) * * @param string $anchorname The name of the named destination / function add_named_dest($anchorname) { $this->_pdf->addDestination($anchorname, "Fit"); } //........................................................................ /* * 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 $height The height of the link / function add_link($url, $x, $y, $width, $height) { $y = $this->y($y) - $height; if (strpos($url, '#') === 0) { // Local link $name = substr($url, 1); if ($name) { $this->_pdf->addInternalLink($name, $x, $y, $x + $width, $y + $height); } } else { $this->_pdf->addLink(rawurldecode($url), $x, $y, $x + $width, $y + $height); } } function get_text_width($text, $font, $size, $word_spacing = 0, $char_spacing = 0) { $this->_pdf->selectFont($font); return $this->_pdf->getTextWidth($size, $text, $word_spacing, $char_spacing); } function register_string_subset($font, $string) { $this->_pdf->registerText($font, $string); } function get_font_height($font, $size) { $this->_pdf->selectFont($font); $ratio = $this->_dompdf->get_option("font_height_ratio"); return $this->_pdf->getFontHeight($size) $ratio; } /function get_font_x_height($font, $size) { $this->_pdf->selectFont($font); $ratio = $this->_dompdf->get_option("font_height_ratio"); return $this->_pdf->getFontXHeight($size) $ratio; }/ function get_font_baseline($font, $size) { $ratio = $this->_dompdf->get_option("font_height_ratio"); return $this->get_font_height($font, $size) / $ratio; } /* * 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 colour 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 $angle angle to write the text at, measured CW starting from the x-axis / function page_text($x, $y, $text, $font, $size, $color = array(0, 0, 0), $word_space = 0.0, $char_space = 0.0, $angle = 0.0) { $_t = "text"; $this->_page_text[] = compact("_t", "x", "y", "text", "font", "size", "color", "word_space", "char_space", "angle"); } /* * Processes a script on every page * * The variables $pdf, $PAGE_NUM, and $PAGE_COUNT are available. * * This function can be used to add page numbers to all pages * after the first one, for example. * * @param string $code the script code * @param string $type the language type for script / function page_script($code, $type = "text/php") { $_t = "script"; $this->_page_text[] = compact("_t", "code", "type"); } function new_page() { $this->_page_number++; $this->_page_count++; $ret = $this->_pdf->newPage(); $this->_pages[] = $ret; return $ret; } /* * Add text to each page after rendering is complete / protected function _add_page_text() { if (!count($this->_page_text)) { return; } $page_number = 1; $eval = null; foreach ($this->_pages as $pid) { $this->reopen_object($pid); foreach ($this->_page_text as $pt) { extract($pt); switch ($_t) { case "text": $text = str_replace(array("{PAGE_NUM}", "{PAGE_COUNT}"), array($page_number, $this->_page_count), $text); $this->text($x, $y, $text, $font, $size, $color, $word_space, $char_space, $angle); break; case "script": if (!$eval) { $eval = new PhpEvaluator($this); } $eval->evaluate($code, array('PAGE_NUM' => $page_number, 'PAGE_COUNT' => $this->_page_count)); break; } } $this->close_object(); $page_number++; } } /* * Streams the PDF directly to the browser * * @param string $filename the name of the PDF file * @param array $options associative array, 'Attachment' => 0 or 1, 'compress' => 1 or 0 / function stream($filename, $options = null) { // Add page text $this->_add_page_text(); $options["Content-Disposition"] = $filename; $this->_pdf->stream($options); } /* * Returns the PDF as a string * * @param array $options Output options * @return string / function output($options = null) { $this->_add_page_text(); $debug = isset($options["compress"]) && $options["compress"] != 1; return $this->_pdf->output($debug); } /* * Returns logging messages generated by the Cpdf class * * @return string */ function get_messages() { return $this->_pdf->messages; } }

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