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Direktori : /home2/selectio/www/bharath/a1tex.in/vendor/dompdf/dompdf/src/Positioner/ |
Current File : /home2/selectio/www/bharath/a1tex.in/vendor/dompdf/dompdf/src/Positioner/Absolute.php |
<?php /** * @package dompdf * @link https://github.com/dompdf/dompdf * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License */ namespace Dompdf\Positioner; use Dompdf\FrameDecorator\AbstractFrameDecorator; use Dompdf\FrameReflower\Block; /** * Positions absolutely positioned frames */ class Absolute extends AbstractPositioner { /** * @param AbstractFrameDecorator $frame */ function position(AbstractFrameDecorator $frame): void { if ($frame->get_reflower() instanceof Block) { $style = $frame->get_style(); [$cbx, $cby, $cbw, $cbh] = $frame->get_containing_block(); // If the `top` value is `auto`, the frame will be repositioned // after its height has been resolved $left = (float) $style->length_in_pt($style->left, $cbw); $top = (float) $style->length_in_pt($style->top, $cbh); $frame->set_position($cbx + $left, $cby + $top); } else { // Legacy positioning logic for image and table frames // TODO: Resolve dimensions, margins, and offsets similar to the // block case in the reflowers and use the simplified logic above $style = $frame->get_style(); $block_parent = $frame->find_block_parent(); $current_line = $block_parent->get_current_line_box(); list($x, $y, $w, $h) = $frame->get_containing_block(); $inflow_x = $block_parent->get_content_box()["x"] + $current_line->left + $current_line->w; $inflow_y = $current_line->y; $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, $w); list($width, $height) = [$frame->get_margin_width(), $frame->get_margin_height()]; $orig_width = $style->get_specified("width"); $orig_height = $style->get_specified("height"); /**************************** * * Width auto: * ____________| left=auto | left=fixed | * right=auto | A | B | * right=fixed | C | D | * * Width fixed: * ____________| left=auto | left=fixed | * right=auto | E | F | * right=fixed | G | H | *****************************/ if ($left === "auto") { if ($right === "auto") { // A or E - Keep the frame at the same position $x = $inflow_x; } else { if ($orig_width === "auto") { // C $x += $w - $width - $right; } else { // G $x += $w - $width - $right; } } } else { if ($right === "auto") { // B or F $x += (float)$left; } else { if ($orig_width === "auto") { // D - TODO change width $x += (float)$left; } else { // H - Everything is fixed: left + width win $x += (float)$left; } } } // The same vertically if ($top === "auto") { if ($bottom === "auto") { // A or E - Keep the frame at the same position $y = $inflow_y; } else { if ($orig_height === "auto") { // C $y += (float)$h - $height - (float)$bottom; } else { // G $y += (float)$h - $height - (float)$bottom; } } } else { if ($bottom === "auto") { // B or F $y += (float)$top; } else { if ($orig_height === "auto") { // D - TODO change height $y += (float)$top; } else { // H - Everything is fixed: top + height win $y += (float)$top; } } } $frame->set_position($x, $y); } } }