Source of file Renderer.php
Size: 8,729 Bytes - Last Modified: 2021-12-23T10:11:59+00:00
/var/www/docs.ssmods.com/process/src/ext/dompdf/dompdf/src/Renderer.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296 | <?php /** * @package dompdf * @link http://dompdf.github.com/ * @author Benj Carson <benjcarson@digitaljunkies.ca> * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License */ namespace Dompdf; use Dompdf\Renderer\AbstractRenderer; use Dompdf\Renderer\Block; use Dompdf\Renderer\Image; use Dompdf\Renderer\ListBullet; use Dompdf\Renderer\TableCell; use Dompdf\Renderer\TableRowGroup; use Dompdf\Renderer\Text; /** * Concrete renderer * * Instantiates several specific renderers in order to render any given frame. * * @package dompdf */ class Renderer extends AbstractRenderer { /** * Array of renderers for specific frame types * * @var AbstractRenderer[] */ protected $_renderers; /** * Cache of the callbacks array * * @var array */ private $_callbacks; /** * Advance the canvas to the next page */ function new_page() { $this->_canvas->new_page(); } /** * Render frames recursively * * @param Frame $frame the frame to render */ public function render(Frame $frame) { global $_dompdf_debug; $this->_check_callbacks("begin_frame", $frame); if ($_dompdf_debug) { echo $frame; flush(); } $style = $frame->get_style(); if (in_array($style->visibility, array("hidden", "collapse"))) { return; } $display = $style->display; // Starts the CSS transformation if ($style->transform && is_array($style->transform)) { $this->_canvas->save(); list($x, $y) = $frame->get_padding_box(); $origin = $style->transform_origin; foreach ($style->transform as $transform) { list($function, $values) = $transform; if ($function === "matrix") { $function = "transform"; } $values = array_map("floatval", $values); $values[] = $x + (float)$style->length_in_pt($origin[0], (float)$style->length_in_pt($style->width)); $values[] = $y + (float)$style->length_in_pt($origin[1], (float)$style->length_in_pt($style->height)); call_user_func_array(array($this->_canvas, $function), $values); } } switch ($display) { case "block": case "list-item": case "inline-block": case "table": case "inline-table": $this->_render_frame("block", $frame); break; case "inline": if ($frame->is_text_node()) { $this->_render_frame("text", $frame); } else { $this->_render_frame("inline", $frame); } break; case "table-cell": $this->_render_frame("table-cell", $frame); break; case "table-row-group": case "table-header-group": case "table-footer-group": $this->_render_frame("table-row-group", $frame); break; case "-dompdf-list-bullet": $this->_render_frame("list-bullet", $frame); break; case "-dompdf-image": $this->_render_frame("image", $frame); break; case "none": $node = $frame->get_node(); if ($node->nodeName === "script") { if ($node->getAttribute("type") === "text/php" || $node->getAttribute("language") === "php" ) { // Evaluate embedded php scripts $this->_render_frame("php", $frame); } elseif ($node->getAttribute("type") === "text/javascript" || $node->getAttribute("language") === "javascript" ) { // Insert JavaScript $this->_render_frame("javascript", $frame); } } // Don't render children, so skip to next iter return; default: break; } // Starts the overflow: hidden box if ($style->overflow === "hidden") { list($x, $y, $w, $h) = $frame->get_padding_box(); // get border radii $style = $frame->get_style(); list($tl, $tr, $br, $bl) = $style->get_computed_border_radius($w, $h); if ($tl + $tr + $br + $bl > 0) { $this->_canvas->clipping_roundrectangle($x, $y, (float)$w, (float)$h, $tl, $tr, $br, $bl); } else { $this->_canvas->clipping_rectangle($x, $y, (float)$w, (float)$h); } } $stack = array(); foreach ($frame->get_children() as $child) { // < 0 : nagative z-index // = 0 : no z-index, no stacking context // = 1 : stacking context without z-index // > 1 : z-index $child_style = $child->get_style(); $child_z_index = $child_style->z_index; $z_index = 0; if ($child_z_index !== "auto") { $z_index = intval($child_z_index) + 1; } elseif ($child_style->float !== "none" || $child->is_positionned()) { $z_index = 1; } $stack[$z_index][] = $child; } ksort($stack); foreach ($stack as $by_index) { foreach ($by_index as $child) { $this->render($child); } } // Ends the overflow: hidden box if ($style->overflow === "hidden") { $this->_canvas->clipping_end(); } if ($style->transform && is_array($style->transform)) { $this->_canvas->restore(); } // Check for end frame callback $this->_check_callbacks("end_frame", $frame); } /** * Check for callbacks that need to be performed when a given event * gets triggered on a frame * * @param string $event the type of event * @param Frame $frame the frame that event is triggered on */ protected function _check_callbacks($event, $frame) { if (!isset($this->_callbacks)) { $this->_callbacks = $this->_dompdf->getCallbacks(); } if (is_array($this->_callbacks) && isset($this->_callbacks[$event])) { $info = array(0 => $this->_canvas, "canvas" => $this->_canvas, 1 => $frame, "frame" => $frame); $fs = $this->_callbacks[$event]; foreach ($fs as $f) { if (is_callable($f)) { if (is_array($f)) { $f[0]->{$f[1]}($info); } else { $f($info); } } } } } /** * Render a single frame * * Creates Renderer objects on demand * * @param string $type type of renderer to use * @param Frame $frame the frame to render */ protected function _render_frame($type, $frame) { if (!isset($this->_renderers[$type])) { switch ($type) { case "block": $this->_renderers[$type] = new Block($this->_dompdf); break; case "inline": $this->_renderers[$type] = new Renderer\Inline($this->_dompdf); break; case "text": $this->_renderers[$type] = new Text($this->_dompdf); break; case "image": $this->_renderers[$type] = new Image($this->_dompdf); break; case "table-cell": $this->_renderers[$type] = new TableCell($this->_dompdf); break; case "table-row-group": $this->_renderers[$type] = new TableRowGroup($this->_dompdf); break; case "list-bullet": $this->_renderers[$type] = new ListBullet($this->_dompdf); break; case "php": $this->_renderers[$type] = new PhpEvaluator($this->_canvas); break; case "javascript": $this->_renderers[$type] = new JavascriptEmbedder($this->_dompdf); break; } } $this->_renderers[$type]->render($frame); } } |