/** * Renders the HTML to PDF */ function render() { $this->save_locale(); $log_output_file = $this->get_option("log_output_file"); if ($log_output_file) { if (!file_exists($log_output_file) && is_writable(dirname($log_output_file))) { touch($log_output_file); } $this->_start_time = microtime(true); ob_start(); } //enable_mem_profile(); $this->_process_html(); $this->_css->apply_styles($this->_tree); // @page style rules : size, margins $page_styles = $this->_css->get_page_styles(); $base_page_style = $page_styles["base"]; unset($page_styles["base"]); foreach ($page_styles as $_page_style) { $_page_style->inherit($base_page_style); } if (is_array($base_page_style->size)) { $this->set_paper(array(0, 0, $base_page_style->size[0], $base_page_style->size[1])); } $this->_pdf = Canvas_Factory::get_instance($this, $this->_paper_size, $this->_paper_orientation); Font_Metrics::init($this->_pdf); if ($this->get_option("enable_font_subsetting") && $this->_pdf instanceof CPDF_Adapter) { foreach ($this->_tree->get_frames() as $frame) { $style = $frame->get_style(); $node = $frame->get_node(); // Handle text nodes if ($node->nodeName === "#text") { $this->_pdf->register_string_subset($style->font_family, $node->nodeValue); continue; } // Handle generated content (list items) if ($style->display === "list-item") { $chars = List_Bullet_Renderer::get_counter_chars($style->list_style_type); $this->_pdf->register_string_subset($style->font_family, $chars); continue; } // Handle other generated content (pseudo elements) // FIXME: This only captures the text of the stylesheet declaration, // not the actual generated content, and forces all possible counter // values. See notes in issue #750. if ($frame->get_node()->nodeName == "dompdf_generated") { // all possible counter values $chars = List_Bullet_Renderer::get_counter_chars('decimal'); $this->_pdf->register_string_subset($style->font_family, $chars); $chars = List_Bullet_Renderer::get_counter_chars('upper-alpha'); $this->_pdf->register_string_subset($style->font_family, $chars); $chars = List_Bullet_Renderer::get_counter_chars('lower-alpha'); $this->_pdf->register_string_subset($style->font_family, $chars); $chars = List_Bullet_Renderer::get_counter_chars('lower-greek'); $this->_pdf->register_string_subset($style->font_family, $chars); // the text of the stylesheet declaration $this->_pdf->register_string_subset($style->font_family, $style->content); continue; } } } $root = null; foreach ($this->_tree->get_frames() as $frame) { // Set up the root frame if (is_null($root)) { $root = Frame_Factory::decorate_root($this->_tree->get_root(), $this); continue; } // Create the appropriate decorators, reflowers & positioners. Frame_Factory::decorate_frame($frame, $this, $root); } // Add meta information $title = $this->_xml->getElementsByTagName("title"); if ($title->length) { $this->_pdf->add_info("Title", trim($title->item(0)->nodeValue)); } $metas = $this->_xml->getElementsByTagName("meta"); $labels = array("author" => "Author", "keywords" => "Keywords", "description" => "Subject"); foreach ($metas as $meta) { $name = mb_strtolower($meta->getAttribute("name")); $value = trim($meta->getAttribute("content")); if (isset($labels[$name])) { $this->_pdf->add_info($labels[$name], $value); continue; } if ($name === "dompdf.view" && $this->parse_default_view($value)) { $this->_pdf->set_default_view($this->_default_view, $this->_default_view_options); } } $root->set_containing_block(0, 0, $this->_pdf->get_width(), $this->_pdf->get_height()); $root->set_renderer(new Renderer($this)); // This is where the magic happens: $root->reflow(); // Clean up cached images Image_Cache::clear(); global $_dompdf_warnings, $_dompdf_show_warnings; if ($_dompdf_show_warnings) { echo '<b>DOMPDF Warnings</b><br><pre>'; foreach ($_dompdf_warnings as $msg) { echo $msg . "\n"; } echo $this->get_canvas()->get_cpdf()->messages; echo '</pre>'; flush(); } $this->restore_locale(); }
/** * Renders the HTML to PDF */ function render() { $this->save_locale(); if (DOMPDF_LOG_OUTPUT_FILE) { if (!file_exists(DOMPDF_LOG_OUTPUT_FILE) && is_writable(dirname(DOMPDF_LOG_OUTPUT_FILE))) { touch(DOMPDF_LOG_OUTPUT_FILE); } $this->_start_time = microtime(true); ob_start(); } //enable_mem_profile(); $this->_process_html(); $this->_css->apply_styles($this->_tree); $root = null; foreach ($this->_tree->get_frames() as $frame) { // Set up the root frame if (is_null($root)) { $root = Frame_Factory::decorate_root($this->_tree->get_root(), $this); continue; } // Create the appropriate decorators, reflowers & positioners. $deco = Frame_Factory::decorate_frame($frame, $this); $deco->set_root($root); // FIXME: handle generated content if ($frame->get_style()->display === "list-item") { // Insert a list-bullet frame $node = $this->_xml->createElement("bullet"); // arbitrary choice $b_f = new Frame($node); $parent_node = $frame->get_parent()->get_node(); if (!$parent_node->hasAttribute("dompdf-children-count")) { $count = 0; foreach ($parent_node->childNodes as $_node) { if ($_node instanceof DOMElement) { $count++; } } $parent_node->setAttribute("dompdf-children-count", $count); } $index = 0; if (!$parent_node->hasAttribute("dompdf-counter")) { $index = 1; $parent_node->setAttribute("dompdf-counter", 1); } else { $index = $parent_node->getAttribute("dompdf-counter"); $index++; $parent_node->setAttribute("dompdf-counter", $index); } $node->setAttribute("dompdf-counter", $index); $style = $this->_css->create_style(); $style->display = "-dompdf-list-bullet"; $style->inherit($frame->get_style()); $b_f->set_style($style); $deco->prepend_child(Frame_Factory::decorate_frame($b_f, $this)); } } $page_styles = $this->_css->get_page_styles(); $base_page_style = $page_styles["base"]; unset($page_styles["base"]); foreach ($page_styles as $_page_style) { $_page_style->inherit($base_page_style); } if (is_array($base_page_style->size)) { $this->set_paper(array(0, 0, $base_page_style->size[0], $base_page_style->size[1])); } $this->_pdf = Canvas_Factory::get_instance($this->_paper_size, $this->_paper_orientation); // Add meta information $title = $this->_xml->getElementsByTagName("title"); if ($title->length) { $this->_pdf->add_info("Title", trim($title->item(0)->nodeValue)); } $metas = $this->_xml->getElementsByTagName("meta"); $labels = array("author" => "Author", "keywords" => "Keywords", "description" => "Subject"); foreach ($metas as $meta) { $name = mb_strtolower($meta->getAttribute("name")); $value = trim($meta->getAttribute("content")); if (isset($labels[$name])) { $this->_pdf->add_info($labels[$name], $value); continue; } if ($name === "dompdf.view" && $this->parse_default_view($value)) { $this->_pdf->set_default_view($this->_default_view, $this->_default_view_options); } } $root->set_containing_block(0, 0, $this->_pdf->get_width(), $this->_pdf->get_height()); $root->set_renderer(new Renderer($this)); // This is where the magic happens: $root->reflow(); // Clean up cached images Image_Cache::clear(); global $_dompdf_warnings, $_dompdf_show_warnings; if ($_dompdf_show_warnings) { echo '<b>DOMPDF Warnings</b><br><pre>'; foreach ($_dompdf_warnings as $msg) { echo $msg . "\n"; } echo $this->get_canvas()->get_cpdf()->messages; echo '</pre>'; flush(); } $this->restore_locale(); }
/** * Render a background image over a rectangular area * * @param string $img The background image to load * @param float $x The left edge of the rectangular area * @param float $y The top edge of the rectangular area * @param float $width The width of the rectangular area * @param float $height The height of the rectangular area * @param Style $style The associated Style object */ protected function _background_image($url, $x, $y, $width, $height, $style) { $sheet = $style->get_stylesheet(); // Skip degenerate cases if ($width == 0 || $height == 0) { return; } //debugpng if (DEBUGPNG) { print '[_background_image ' . $url . ']'; } list($img, $ext) = Image_Cache::resolve_url($url, $sheet->get_protocol(), $sheet->get_host(), $sheet->get_base_path()); // Bail if the image is no good if ($img === DOMPDF_LIB_DIR . "/res/broken_image.png") { return; } //Try to optimize away reading and composing of same background multiple times //Postponing read with imagecreatefrom ...() //final composition paramters and name not known yet //Therefore read dimension directly from file, instead of creating gd object first. //$img_w = imagesx($src); $img_h = imagesy($src); list($img_w, $img_h) = getimagesize($img); if (!isset($img_w) || $img_w == 0 || !isset($img_h) || $img_h == 0) { return; } $repeat = $style->background_repeat; $bg_color = $style->background_color; //Increase background resolution and dependent box size according to image resolution to be placed in //Then image can be copied in without resize $bg_width = round((double) ($width * DOMPDF_DPI) / 72); $bg_height = round((double) ($height * DOMPDF_DPI) / 72); //Need %bg_x, $bg_y as background pos, where img starts, converted to pixel list($bg_x, $bg_y) = $style->background_position; if (is_percent($bg_x)) { // The point $bg_x % from the left edge of the image is placed // $bg_x % from the left edge of the background rectangle $p = (double) $bg_x / 100.0; $x1 = $p * $img_w; $x2 = $p * $bg_width; $bg_x = round($x2 - $x1); } else { $bg_x = round((double) ($style->length_in_pt($bg_x) * DOMPDF_DPI) / 72); } if (is_percent($bg_y)) { // The point $bg_y % from the left edge of the image is placed // $bg_y % from the left edge of the background rectangle $p = (double) $bg_y / 100.0; $y1 = $p * $img_h; $y2 = $p * $bg_height; $bg_y = round($y2 - $y1); } else { $bg_y = round((double) ($style->length_in_pt($bg_y) * DOMPDF_DPI) / 72); } //clip background to the image area on partial repeat. Nothing to do if img off area //On repeat, normalize start position to the tile at immediate left/top or 0/0 of area //On no repeat with positive offset: move size/start to have offset==0 //Handle x/y Dimensions separately if ($repeat !== "repeat" && $repeat !== "repeat-x") { //No repeat x if ($bg_x < 0) { $bg_width = $img_w + $bg_x; } else { $x += $bg_x * 72 / DOMPDF_DPI; $bg_width = $bg_width - $bg_x; if ($bg_width > $img_w) { $bg_width = $img_w; } $bg_x = 0; } if ($bg_width <= 0) { return; } $width = (double) ($bg_width * 72) / DOMPDF_DPI; } else { //repeat x if ($bg_x < 0) { $bg_x = -(-$bg_x % $img_w); } else { $bg_x = $bg_x % $img_w; if ($bg_x > 0) { $bg_x -= $img_w; } } } if ($repeat !== "repeat" && $repeat !== "repeat-y") { //no repeat y if ($bg_y < 0) { $bg_height = $img_h + $bg_y; } else { $y += $bg_y * 72 / DOMPDF_DPI; $bg_height = $bg_height - $bg_y; if ($bg_height > $img_h) { $bg_height = $img_h; } $bg_y = 0; } if ($bg_height <= 0) { return; } $height = (double) ($bg_height * 72) / DOMPDF_DPI; } else { //repeat y if ($bg_y < 0) { $bg_y = -(-$bg_y % $img_h); } else { $bg_y = $bg_y % $img_h; if ($bg_y > 0) { $bg_y -= $img_h; } } } //Optimization, if repeat has no effect if ($repeat === "repeat" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) { $repeat = "repeat-x"; } if ($repeat === "repeat" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width) { $repeat = "repeat-y"; } if ($repeat === "repeat-x" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width || $repeat === "repeat-y" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) { $repeat = "no-repeat"; } //Use filename as indicator only //different names for different variants to have different copies in the pdf //This is not dependent of background color of box! .'_'.(is_array($bg_color) ? $bg_color["hex"] : $bg_color) //Note: Here, bg_* are the start values, not end values after going through the tile loops! $filedummy = $img; /* //Make shorter strings with limited characters for cache associative array index - needed? //Strip common base path - server root, explicite temp, default temp; remove unwanted characters; $filedummy = strtr($filedummy,"\\:","//"); $p = strtr($_SERVER["DOCUMENT_ROOT"],"\\:","//"); $l = strlen($p); if ( substr($filedummy,0,$l) == $p) { $filedummy = substr($filedummy,$l); } else { $p = strtr(DOMPDF_TEMP_DIR,"\\:","//"); $l = strlen($p); if ( substr($filedummy,0,$l) == $p) { $filedummy = substr($filedummy,$l); } else { $p = strtr(sys_get_temp_dir(),"\\:","//"); $l = strlen($p); if ( substr($filedummy,0,$l) == $p) { $filedummy = substr($filedummy,$l); } } } */ $filedummy .= '_' . $bg_width . '_' . $bg_height . '_' . $bg_x . '_' . $bg_y . '_' . $repeat; //debugpng //if (DEBUGPNG) print '<pre>[_background_image name '.$filedummy.']</pre>'; //Optimization to avoid multiple times rendering the same image. //If check functions are existing and identical image already cached, //then skip creation of duplicate, because it is not needed by addImagePng if (method_exists($this->_canvas, "get_cpdf") && method_exists($this->_canvas->get_cpdf(), "addImagePng") && method_exists($this->_canvas->get_cpdf(), "image_iscached") && $this->_canvas->get_cpdf()->image_iscached($filedummy)) { $bg = null; //debugpng //if (DEBUGPNG) print '[_background_image skip]'; } else { // Create a new image to fit over the background rectangle $bg = imagecreatetruecolor($bg_width, $bg_height); //anyway default //imagealphablending($img, true); switch (strtolower($ext)) { case "png": $src = imagecreatefrompng($img); break; case "jpg": case "jpeg": $src = imagecreatefromjpeg($img); break; case "gif": $src = imagecreatefromgif($img); break; default: return; // Unsupported image type } if ($src == null) { return; } //Background color if box is not relevant here //Non transparent image: box clipped to real size. Background non relevant. //Transparent image: The image controls the transparency and lets shine through whatever background. //However on transparent imaage preset the composed image with the transparency color, //to keep the transparency when copying over the non transparent parts of the tiles. $ti = imagecolortransparent($src); if ($ti >= 0) { $tc = imagecolorsforindex($src, $ti); $ti = imagecolorallocate($bg, $tc['red'], $tc['green'], $tc['blue']); imagefill($bg, 0, 0, $ti); imagecolortransparent($bg, $ti); } //This has only an effect for the non repeatable dimension. //compute start of src and dest coordinates of the single copy if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; } else { $src_x = 0; $dst_x = $bg_x; } if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; } else { $src_y = 0; $dst_y = $bg_y; } //For historical reasons exchange meanings of variables: //start_* will be the start values, while bg_* will be the temporary start values in the loops $start_x = $bg_x; $start_y = $bg_y; // Copy regions from the source image to the background if ($repeat === "no-repeat") { // Simply place the image on the background imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $img_h); } else { if ($repeat === "repeat-x") { for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) { if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; $w = $img_w + $bg_x; } else { $dst_x = $bg_x; $src_x = 0; $w = $img_w; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $img_h); } } else { if ($repeat === "repeat-y") { for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) { if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; $h = $img_h + $bg_y; } else { $dst_y = $bg_y; $src_y = 0; $h = $img_h; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $h); } } else { if ($repeat === "repeat") { for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) { for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) { if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; $w = $img_w + $bg_x; } else { $dst_x = $bg_x; $src_x = 0; $w = $img_w; } if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; $h = $img_h + $bg_y; } else { $dst_y = $bg_y; $src_y = 0; $h = $img_h; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h); } } } else { print 'Unknown repeat!'; } } } } } /* End optimize away creation of duplicates */ //img: image url string //img_w, img_h: original image size in px //width, height: box size in pt //bg_width, bg_height: box size in px //x, y: left/top edge of box on page in pt //start_x, start_y: placement of image relativ to pattern //$repeat: repeat mode //$bg: GD object of result image //$src: GD object of original image //When using cpdf and optimization to direct png creation from gd object is available, //don't create temp file, but place gd object directly into the pdf if (method_exists($this->_canvas, "get_cpdf") && method_exists($this->_canvas->get_cpdf(), "addImagePng")) { //Note: CPDF_Adapter image converts y position $this->_canvas->get_cpdf()->addImagePng($filedummy, $x, $this->_canvas->get_height() - $y - $height, $width, $height, $bg); } else { $tmp_file = tempnam(DOMPDF_TEMP_DIR, "bg_dompdf_img_") . '.png'; //debugpng if (DEBUGPNG) { print '[_background_image ' . $tmp_file . ']'; } imagepng($bg, $tmp_file); $this->_canvas->image($tmp_file, "png", $x, $y, $width, $height); //debugpng if (DEBUGPNG) { print '[_background_image unlink ' . $tmp_file . ']'; } if (!DEBUGKEEPTEMP) { unlink($tmp_file); } } }
/** * Renders the HTML to PDF */ function render() { //enable_mem_profile(); $this->_process_html(); $this->_css->apply_styles($this->_tree); $root = null; foreach ($this->_tree->get_frames() as $frame) { // Set up the root frame if (is_null($root)) { $root = Frame_Factory::decorate_root($this->_tree->get_root(), $this); continue; } // Create the appropriate decorators, reflowers & positioners. $deco = Frame_Factory::decorate_frame($frame, $this); $deco->set_root($root); // FIXME: handle generated content if ($frame->get_style()->display === "list-item") { // Insert a list-bullet frame $node = $this->_xml->createElement("bullet"); // arbitrary choice $b_f = new Frame($node); $style = $this->_css->create_style(); $style->display = "-dompdf-list-bullet"; $style->inherit($frame->get_style()); $b_f->set_style($style); $deco->prepend_child(Frame_Factory::decorate_frame($b_f, $this)); } } $this->_pdf = Canvas_Factory::get_instance($this->_paper_size, $this->_paper_orientation); $root->set_containing_block(0, 0, $this->_pdf->get_width(), $this->_pdf->get_height()); $root->set_renderer(new Renderer($this)); // This is where the magic happens: $root->reflow(); // Clean up cached images Image_Cache::clear(); global $_dompdf_warnings, $_dompdf_show_warnings; if ($_dompdf_show_warnings) { echo '<b>DOMPDF Warnings</b><br><pre>'; foreach ($_dompdf_warnings as $msg) { echo $msg . "\n"; } echo $this->get_canvas()->get_cpdf()->messages; echo '</pre>'; flush(); } }
/** * Render a background image over a rectangular area * * @param string $url The background image to load * @param float $x The left edge of the rectangular area * @param float $y The top edge of the rectangular area * @param float $width The width of the rectangular area * @param float $height The height of the rectangular area * @param Style $style The associated Style object * * @throws Exception */ protected function _background_image($url, $x, $y, $width, $height, $style) { if (!function_exists("imagecreatetruecolor")) { throw new Exception("The PHP GD extension is required, but is not installed."); } $sheet = $style->get_stylesheet(); // Skip degenerate cases if ($width == 0 || $height == 0) { return; } $box_width = $width; $box_height = $height; //debugpng if (DEBUGPNG) { print '[_background_image ' . $url . ']'; } list($img, $type, ) = Image_Cache::resolve_url($url, $sheet->get_protocol(), $sheet->get_host(), $sheet->get_base_path(), $this->_dompdf); // Bail if the image is no good if (Image_Cache::is_broken($img)) { return; } //Try to optimize away reading and composing of same background multiple times //Postponing read with imagecreatefrom ...() //final composition parameters and name not known yet //Therefore read dimension directly from file, instead of creating gd object first. //$img_w = imagesx($src); $img_h = imagesy($src); list($img_w, $img_h) = dompdf_getimagesize($img); if (!isset($img_w) || $img_w == 0 || !isset($img_h) || $img_h == 0) { return; } $repeat = $style->background_repeat; $dpi = $this->_dompdf->get_option("dpi"); //Increase background resolution and dependent box size according to image resolution to be placed in //Then image can be copied in without resize $bg_width = round((double) ($width * $dpi) / 72); $bg_height = round((double) ($height * $dpi) / 72); //Need %bg_x, $bg_y as background pos, where img starts, converted to pixel list($bg_x, $bg_y) = $style->background_position; if (is_percent($bg_x)) { // The point $bg_x % from the left edge of the image is placed // $bg_x % from the left edge of the background rectangle $p = (double) $bg_x / 100.0; $x1 = $p * $img_w; $x2 = $p * $bg_width; $bg_x = $x2 - $x1; } else { $bg_x = (double) ($style->length_in_pt($bg_x) * $dpi) / 72; } $bg_x = round($bg_x + $style->length_in_pt($style->border_left_width) * $dpi / 72); if (is_percent($bg_y)) { // The point $bg_y % from the left edge of the image is placed // $bg_y % from the left edge of the background rectangle $p = (double) $bg_y / 100.0; $y1 = $p * $img_h; $y2 = $p * $bg_height; $bg_y = $y2 - $y1; } else { $bg_y = (double) ($style->length_in_pt($bg_y) * $dpi) / 72; } $bg_y = round($bg_y + $style->length_in_pt($style->border_top_width) * $dpi / 72); //clip background to the image area on partial repeat. Nothing to do if img off area //On repeat, normalize start position to the tile at immediate left/top or 0/0 of area //On no repeat with positive offset: move size/start to have offset==0 //Handle x/y Dimensions separately if ($repeat !== "repeat" && $repeat !== "repeat-x") { //No repeat x if ($bg_x < 0) { $bg_width = $img_w + $bg_x; } else { $x += $bg_x * 72 / $dpi; $bg_width = $bg_width - $bg_x; if ($bg_width > $img_w) { $bg_width = $img_w; } $bg_x = 0; } if ($bg_width <= 0) { return; } $width = (double) ($bg_width * 72) / $dpi; } else { //repeat x if ($bg_x < 0) { $bg_x = -(-$bg_x % $img_w); } else { $bg_x = $bg_x % $img_w; if ($bg_x > 0) { $bg_x -= $img_w; } } } if ($repeat !== "repeat" && $repeat !== "repeat-y") { //no repeat y if ($bg_y < 0) { $bg_height = $img_h + $bg_y; } else { $y += $bg_y * 72 / $dpi; $bg_height = $bg_height - $bg_y; if ($bg_height > $img_h) { $bg_height = $img_h; } $bg_y = 0; } if ($bg_height <= 0) { return; } $height = (double) ($bg_height * 72) / $dpi; } else { //repeat y if ($bg_y < 0) { $bg_y = -(-$bg_y % $img_h); } else { $bg_y = $bg_y % $img_h; if ($bg_y > 0) { $bg_y -= $img_h; } } } //Optimization, if repeat has no effect if ($repeat === "repeat" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) { $repeat = "repeat-x"; } if ($repeat === "repeat" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width) { $repeat = "repeat-y"; } if ($repeat === "repeat-x" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width || $repeat === "repeat-y" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) { $repeat = "no-repeat"; } //Use filename as indicator only //different names for different variants to have different copies in the pdf //This is not dependent of background color of box! .'_'.(is_array($bg_color) ? $bg_color["hex"] : $bg_color) //Note: Here, bg_* are the start values, not end values after going through the tile loops! $filedummy = $img; $is_png = false; $filedummy .= '_' . $bg_width . '_' . $bg_height . '_' . $bg_x . '_' . $bg_y . '_' . $repeat; //Optimization to avoid multiple times rendering the same image. //If check functions are existing and identical image already cached, //then skip creation of duplicate, because it is not needed by addImagePng if ($this->_canvas instanceof CPDF_Adapter && $this->_canvas->get_cpdf()->image_iscached($filedummy)) { $bg = null; } else { // Create a new image to fit over the background rectangle $bg = imagecreatetruecolor($bg_width, $bg_height); switch (strtolower($type)) { case IMAGETYPE_PNG: $is_png = true; imagesavealpha($bg, true); imagealphablending($bg, false); $src = imagecreatefrompng($img); break; case IMAGETYPE_JPEG: $src = imagecreatefromjpeg($img); break; case IMAGETYPE_GIF: $src = imagecreatefromgif($img); break; case IMAGETYPE_BMP: $src = imagecreatefrombmp($img); break; default: return; // Unsupported image type } if ($src == null) { return; } //Background color if box is not relevant here //Non transparent image: box clipped to real size. Background non relevant. //Transparent image: The image controls the transparency and lets shine through whatever background. //However on transparent image preset the composed image with the transparency color, //to keep the transparency when copying over the non transparent parts of the tiles. $ti = imagecolortransparent($src); if ($ti >= 0) { $tc = imagecolorsforindex($src, $ti); $ti = imagecolorallocate($bg, $tc['red'], $tc['green'], $tc['blue']); imagefill($bg, 0, 0, $ti); imagecolortransparent($bg, $ti); } //This has only an effect for the non repeatable dimension. //compute start of src and dest coordinates of the single copy if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; } else { $src_x = 0; $dst_x = $bg_x; } if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; } else { $src_y = 0; $dst_y = $bg_y; } //For historical reasons exchange meanings of variables: //start_* will be the start values, while bg_* will be the temporary start values in the loops $start_x = $bg_x; $start_y = $bg_y; // Copy regions from the source image to the background if ($repeat === "no-repeat") { // Simply place the image on the background imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $img_h); } else { if ($repeat === "repeat-x") { for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) { if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; $w = $img_w + $bg_x; } else { $dst_x = $bg_x; $src_x = 0; $w = $img_w; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $img_h); } } else { if ($repeat === "repeat-y") { for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) { if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; $h = $img_h + $bg_y; } else { $dst_y = $bg_y; $src_y = 0; $h = $img_h; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $h); } } else { if ($repeat === "repeat") { for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) { for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) { if ($bg_x < 0) { $dst_x = 0; $src_x = -$bg_x; $w = $img_w + $bg_x; } else { $dst_x = $bg_x; $src_x = 0; $w = $img_w; } if ($bg_y < 0) { $dst_y = 0; $src_y = -$bg_y; $h = $img_h + $bg_y; } else { $dst_y = $bg_y; $src_y = 0; $h = $img_h; } imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h); } } } else { print 'Unknown repeat!'; } } } } imagedestroy($src); } /* End optimize away creation of duplicates */ $this->_canvas->clipping_rectangle($x, $y, $box_width, $box_height); //img: image url string //img_w, img_h: original image size in px //width, height: box size in pt //bg_width, bg_height: box size in px //x, y: left/top edge of box on page in pt //start_x, start_y: placement of image relative to pattern //$repeat: repeat mode //$bg: GD object of result image //$src: GD object of original image //When using cpdf and optimization to direct png creation from gd object is available, //don't create temp file, but place gd object directly into the pdf if (!$is_png && $this->_canvas instanceof CPDF_Adapter) { // Note: CPDF_Adapter image converts y position $this->_canvas->get_cpdf()->addImagePng($filedummy, $x, $this->_canvas->get_height() - $y - $height, $width, $height, $bg); } else { $tmp_dir = $this->_dompdf->get_option("temp_dir"); $tmp_name = tempnam($tmp_dir, "bg_dompdf_img_"); @unlink($tmp_name); $tmp_file = "{$tmp_name}.png"; //debugpng if (DEBUGPNG) { print '[_background_image ' . $tmp_file . ']'; } imagepng($bg, $tmp_file); $this->_canvas->image($tmp_file, $x, $y, $width, $height); imagedestroy($bg); //debugpng if (DEBUGPNG) { print '[_background_image unlink ' . $tmp_file . ']'; } if (!DEBUGKEEPTEMP) { unlink($tmp_file); } } $this->_canvas->clipping_end(); }
/** * Renders the HTML to PDF */ function render() { $this->_process_html(); $this->_css->apply_styles($this->_tree); $root = null; foreach ($this->_tree->get_frames() as $frame) { // Set up the root frame if (is_null($root)) { $root = Frame_Factory::decorate_root($this->_tree->get_root()); continue; } // Create the appropriate decorators, reflowers & positioners. $deco = Frame_Factory::decorate_frame($frame, $this); $deco->set_root($root); // FIXME: handle generated content if ($frame->get_style()->display == "list-item" && in_array($frame->get_style()->list_style_type, List_Bullet_Frame_Decorator::$BULLET_TYPES)) { // Insert a list-bullet frame $node = $this->_xml->createElement("bullet"); // arbitrary choice $b_f = new Frame($node); $style = $this->_css->create_style(); $style->display = "-dompdf-list-bullet"; $style->inherit($frame->get_style()); $b_f->set_style($style); $deco->prepend_child(Frame_Factory::decorate_frame($b_f)); } } $this->_pdf = Canvas_Factory::get_instance($this->_paper_size, $this->_orientation); $root->set_containing_block(0, 0, $this->_pdf->get_width(), $this->_pdf->get_height()); // This is where the magic happens: $root->reflow(); $renderer = new Renderer($this->_pdf); $renderer->render($root); }