PHP Frame::is_in_flow方法代码示例

 function add_frame_to_line(Frame $frame)
 {
     if (!$frame->is_in_flow()) {
         return;
     }
     $style = $frame->get_style();
     $frame->set_containing_line($this->_line_boxes[$this->_cl]);
     if ($frame instanceof Inline_Frame_Decorator) {
         if ($frame->get_node()->nodeName === "br") {
             $this->maximize_line_height($style->length_in_pt($style->line_height), $frame);
             $this->add_line(true);
         }
         return;
     }
     if ($this->get_current_line_box()->w == 0 && $frame->is_text_node() && !$frame->is_pre()) {
         $frame->set_text(ltrim($frame->get_text()));
         $frame->recalculate_width();
     }
     $w = $frame->get_margin_width();
     if ($w == 0) {
         return;
     }
     $line = $this->_line_boxes[$this->_cl];
     if ($line->left + $line->w + $line->right + $w > $this->get_containing_block("w")) {
         $this->add_line();
     }
     $frame->position();
     $current_line = $this->_line_boxes[$this->_cl];
     $current_line->add_frame($frame);
     if ($frame->is_text_node()) {
         $current_line->wc += count(preg_split("/\\s+/", trim($frame->get_text())));
     }
     $this->increase_line_width($w);
     $this->maximize_line_height($frame->get_margin_height(), $frame);
 }

 /**
  * Decorate a Frame
  *
  * @param Frame  $frame  The frame to decorate
  * @param DOMPDF $dompdf The dompdf instance
  * @param Frame  $root   The frame to decorate
  *
  * @throws DOMPDF_Exception
  * @return Frame_Decorator
  * FIXME: this is admittedly a little smelly...
  */
 static function decorate_frame(Frame $frame, DOMPDF $dompdf, Frame $root = null)
 {
     if (is_null($dompdf)) {
         throw new DOMPDF_Exception("The DOMPDF argument is required");
     }
     $style = $frame->get_style();
     // Floating (and more generally out-of-flow) elements are blocks
     // http://coding.smashingmagazine.com/2007/05/01/css-float-theory-things-you-should-know/
     if (!$frame->is_in_flow() && in_array($style->display, Style::$INLINE_TYPES)) {
         $style->display = "block";
     }
     $display = $style->display;
     switch ($display) {
         case "block":
             $positioner = "Block";
             $decorator = "Block";
             $reflower = "Block";
             break;
         case "inline-block":
             $positioner = "Inline";
             $decorator = "Block";
             $reflower = "Block";
             break;
         case "inline":
             $positioner = "Inline";
             if ($frame->is_text_node()) {
                 $decorator = "Text";
                 $reflower = "Text";
             } else {
                 $enable_css_float = $dompdf->get_option("enable_css_float");
                 if ($enable_css_float && $style->float !== "none") {
                     $decorator = "Block";
                     $reflower = "Block";
                 } else {
                     $decorator = "Inline";
                     $reflower = "Inline";
                 }
             }
             break;
         case "table":
             $positioner = "Block";
             $decorator = "Table";
             $reflower = "Table";
             break;
         case "inline-table":
             $positioner = "Inline";
             $decorator = "Table";
             $reflower = "Table";
             break;
         case "table-row-group":
         case "table-header-group":
         case "table-footer-group":
             $positioner = "Null";
             $decorator = "Table_Row_Group";
             $reflower = "Table_Row_Group";
             break;
         case "table-row":
             $positioner = "Null";
             $decorator = "Table_Row";
             $reflower = "Table_Row";
             break;
         case "table-cell":
             $positioner = "Table_Cell";
             $decorator = "Table_Cell";
             $reflower = "Table_Cell";
             break;
         case "list-item":
             $positioner = "Block";
             $decorator = "Block";
             $reflower = "Block";
             break;
         case "-dompdf-list-bullet":
             if ($style->list_style_position === "inside") {
                 $positioner = "Inline";
             } else {
                 $positioner = "List_Bullet";
             }
             if ($style->list_style_image !== "none") {
                 $decorator = "List_Bullet_Image";
             } else {
                 $decorator = "List_Bullet";
             }
             $reflower = "List_Bullet";
             break;
         case "-dompdf-image":
             $positioner = "Inline";
             $decorator = "Image";
             $reflower = "Image";
             break;
//.........这里部分代码省略.........

 function add_frame_to_line(Frame $frame)
 {
     if (!$frame->is_in_flow()) {
         return;
     }
     $style = $frame->get_style();
     $frame->set_containing_line($this->_line_boxes[$this->_cl]);
     /*
             // Adds a new line after a block, only if certain conditions are met
             if ((($frame instanceof Inline_Frame_Decorator && $frame->get_node()->nodeName !== "br") ||
                   $frame instanceof Text_Frame_Decorator && trim($frame->get_text())) &&
                 ($frame->get_prev_sibling() && $frame->get_prev_sibling()->get_style()->display === "block" &&
                  $this->_line_boxes[$this->_cl]->w > 0 )) {
     
                    $this->maximize_line_height( $style->length_in_pt($style->line_height), $frame );
                    $this->add_line();
     
                    // Add each child of the inline frame to the line individually
                    foreach ($frame->get_children() as $child)
                      $this->add_frame_to_line( $child );
             }
             else*/
     // Handle inline frames (which are effectively wrappers)
     if ($frame instanceof Inline_Frame_Decorator) {
         // Handle line breaks
         if ($frame->get_node()->nodeName === "br") {
             $this->maximize_line_height($style->length_in_pt($style->line_height), $frame);
             $this->add_line(true);
         }
         return;
     }
     // Trim leading text if this is an empty line.  Kinda a hack to put it here,
     // but what can you do...
     if ($this->get_current_line_box()->w == 0 && $frame->is_text_node() && !$frame->is_pre()) {
         $frame->set_text(ltrim($frame->get_text()));
         $frame->recalculate_width();
     }
     $w = $frame->get_margin_width();
     if ($w == 0) {
         return;
     }
     // Debugging code:
     /*
     pre_r("\n<h3>Adding frame to line:</h3>");
     
     //    pre_r("Me: " . $this->get_node()->nodeName . " (" . spl_object_hash($this->get_node()) . ")");
     //    pre_r("Node: " . $frame->get_node()->nodeName . " (" . spl_object_hash($frame->get_node()) . ")");
     if ( $frame->is_text_node() )
       pre_r('"'.$frame->get_node()->nodeValue.'"');
     
     pre_r("Line width: " . $this->_line_boxes[$this->_cl]->w);
     pre_r("Frame: " . get_class($frame));
     pre_r("Frame width: "  . $w);
     pre_r("Frame height: " . $frame->get_margin_height());
     pre_r("Containing block width: " . $this->get_containing_block("w"));
     */
     // End debugging
     $line = $this->_line_boxes[$this->_cl];
     if ($line->left + $line->w + $line->right + $w > $this->get_containing_block("w")) {
         $this->add_line();
     }
     $frame->position();
     $current_line = $this->_line_boxes[$this->_cl];
     $current_line->add_frame($frame);
     if ($frame->is_text_node()) {
         $current_line->wc += count(preg_split("/\\s+/", trim($frame->get_text())));
     }
     $this->increase_line_width($w);
     $this->maximize_line_height($frame->get_margin_height(), $frame);
 }