function render(Frame $frame)
 {
     if (!$this->_dompdf->get_option("enable_javascript")) {
         return;
     }
     $this->insert($frame->get_node()->nodeValue);
 }
 /**
  * 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 = $height;
     //debugpng
     if ($this->_dompdf->get_option("debugPng")) {
         print '[_background_image ' . $url . ']';
     }
     list($img, $type, ) = Cache::resolve_url($url, $sheet->get_protocol(), $sheet->get_host(), $sheet->get_base_path(), $this->_dompdf);
     // Bail if the image is no good
     if (Cache::is_broken($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, $img_h) = Helpers::dompdf_getimagesize($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) = $style->background_position;
     if (Helpers::is_percent($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) * $dpi / 72);
     if (Helpers::is_percent($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 && $this->_canvas->get_cpdf()->image_iscached($filedummy)) {
         $bg = null;
     } else {
         // Create a new image to fit over the background rectangle
         $bg = imagecreatetruecolor($bg_width, $bg_height);
         switch (strtolower($type)) {
             case "png":
                 $is_png = true;
                 imagesavealpha($bg, true);
                 imagealphablending($bg, false);
                 $src = imagecreatefrompng($img);
                 break;
             case "jpeg":
                 $src = imagecreatefromjpeg($img);
                 break;
             case "gif":
                 $src = imagecreatefromgif($img);
                 break;
             case "bmp":
                 $src = Helpers::imagecreatefrombmp($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) {
         // 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 ($this->_dompdf->get_option("debugPng")) {
             print '[_background_image ' . $tmp_file . ']';
         }
         imagepng($bg, $tmp_file);
         $this->_canvas->image($tmp_file, $x, $y, $width, $height);
         imagedestroy($bg);
         //debugpng
         if ($this->_dompdf->get_option("debugPng")) {
             print '[_background_image unlink ' . $tmp_file . ']';
         }
         if (!$this->_dompdf->get_option("debugKeepTemp")) {
             unlink($tmp_file);
         }
     }
     $this->_canvas->clipping_end();
 }
Exemple #3
0
 function output($options = null)
 {
     // Add page text
     $this->_add_page_text();
     if (isset($options["compress"]) && $options["compress"] != 1) {
         $this->_pdf->set_value("compress", 0);
     } else {
         $this->_pdf->set_value("compress", 6);
     }
     $this->_close();
     if (self::$IN_MEMORY) {
         $data = $this->_pdf->get_buffer();
     } else {
         $data = file_get_contents($this->_file);
         //debugpng
         if ($this->_dompdf->get_option("debugPng")) {
             print '[pdflib output unlink ' . $this->_file . ']';
         }
         if (!$this->_dompdf->get_option("debugKeepTemp")) {
             unlink($this->_file);
         }
         $this->_file = null;
         unset($this->_file);
     }
     return $data;
 }
Exemple #4
0
 /**
  * Unlink all cached images (i.e. temporary images either downloaded
  * or converted)
  */
 static function clear()
 {
     if (empty(self::$_cache) || self::$_dompdf->get_option("debugKeepTemp")) {
         return;
     }
     foreach (self::$_cache as $file) {
         if (self::$_dompdf->get_option("debugPng")) {
             print "[clear unlink {$file}]";
         }
         unlink($file);
     }
     self::$_cache = array();
 }
Exemple #5
0
 /**
  * parse selector + rulesets
  *
  * @param string $str CSS selectors and rulesets
  */
 private function _parse_sections($str)
 {
     // Pre-process: collapse all whitespace and strip whitespace around '>',
     // '.', ':', '+', '#'
     $patterns = array("/[\\s\n]+/", "/\\s+([>.:+#])\\s+/");
     $replacements = array(" ", "\\1");
     $str = preg_replace($patterns, $replacements, $str);
     $sections = explode("}", $str);
     if ($this->_dompdf->get_option('debugCss')) {
         print '[_parse_sections';
     }
     foreach ($sections as $sect) {
         $i = mb_strpos($sect, "{");
         $selectors = explode(",", mb_substr($sect, 0, $i));
         if ($this->_dompdf->get_option('debugCss')) {
             print '[section';
         }
         $style = $this->_parse_properties(trim(mb_substr($sect, $i + 1)));
         // Assign it to the selected elements
         foreach ($selectors as $selector) {
             $selector = trim($selector);
             if ($selector == "") {
                 if ($this->_dompdf->get_option('debugCss')) {
                     print '#empty#';
                 }
                 continue;
             }
             if ($this->_dompdf->get_option('debugCss')) {
                 print '#' . $selector . '#';
             }
             //if ($this->_dompdf->get_option('debugCss')) { if (strpos($selector,'p') !== false) print '!!!p!!!#'; }
             $this->add_style($selector, $style);
         }
         if ($this->_dompdf->get_option('debugCss')) {
             print 'section]';
         }
     }
     if ($this->_dompdf->get_option('debugCss')) {
         print '_parse_sections]';
     }
 }
Exemple #6
0
 function get_font_baseline($font, $size)
 {
     $ratio = $this->_dompdf->get_option("font_height_ratio");
     return $this->get_font_height($font, $size) / $ratio;
 }