/var/www/hkosl.com/littleark/webadmin/libraies/dompdf/dompdf/src/Positioner/Absolute.php


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<?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\Positioner;

use 
Dompdf\FrameDecorator\AbstractFrameDecorator;

/**
 * Positions absolutely positioned frames
 */
class Absolute extends AbstractPositioner
{

    function 
__construct(AbstractFrameDecorator $frame)
    {
        
parent::__construct($frame);
    }

    function 
position()
    {

        
$frame $this->_frame;
        
$style $frame->get_style();

        
$p $frame->find_positionned_parent();

        list(
$x$y$w$h) = $frame->get_containing_block();

        
$top $style->length_in_pt($style->top$h);
        
$right $style->length_in_pt($style->right$w);
        
$bottom $style->length_in_pt($style->bottom$h);
        
$left $style->length_in_pt($style->left$w);

        if (
$p && !($left === "auto" && $right === "auto")) {
            
// Get the parent's padding box (see http://www.w3.org/TR/CSS21/visuren.html#propdef-top)
            
list($x$y$w$h) = $p->get_padding_box();
        }

        list(
$width$height) = array($frame->get_margin_width(), $frame->get_margin_height());

        
$orig_style $this->_frame->get_original_style();
        
$orig_width $orig_style->width;
        
$orig_height $orig_style->height;

        
/****************************
         *
         * Width auto:
         * ____________| left=auto | left=fixed |
         * right=auto  |     A     |     B      |
         * right=fixed |     C     |     D      |
         *
         * Width fixed:
         * ____________| left=auto | left=fixed |
         * right=auto  |     E     |     F      |
         * right=fixed |     G     |     H      |
         *****************************/

        
if ($left === "auto") {
            if (
$right === "auto") {
                
// A or E - Keep the frame at the same position
                
$x $x $frame->find_block_parent()->get_current_line_box()->w;
            } else {
                if (
$orig_width === "auto") {
                    
// C
                    
$x += $w $width $right;
                } else {
                    
// G
                    
$x += $w $width $right;
                }
            }
        } else {
            if (
$right === "auto") {
                
// B or F
                
$x += $left;
            } else {
                if (
$orig_width === "auto") {
                    
// D - TODO change width
                    
$x += $left;
                } else {
                    
// H - Everything is fixed: left + width win
                    
$x += $left;
                }
            }
        }

        
// The same vertically
        
if ($top === "auto") {
            if (
$bottom === "auto") {
                
// A or E - Keep the frame at the same position
                
$y $frame->find_block_parent()->get_current_line_box()->y;
            } else {
                if (
$orig_height === "auto") {
                    
// C
                    
$y += $h $height $bottom;
                } else {
                    
// G
                    
$y += $h $height $bottom;
                }
            }
        } else {
            if (
$bottom === "auto") {
                
// B or F
                
$y += $top;
            } else {
                if (
$orig_height === "auto") {
                    
// D - TODO change height
                    
$y += $top;
                } else {
                    
// H - Everything is fixed: top + height win
                    
$y += $top;
                }
            }
        }

        
$frame->set_position($x$y);

    }
}