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<?php |
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/** |
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* @package dompdf |
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* @link http://dompdf.github.com/ |
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* @author Benj Carson <[email protected]> |
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* @author Fabien Ménager <[email protected]> |
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
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*/ |
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namespace Dompdf\FrameReflower; |
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use Dompdf\Frame; |
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use Dompdf\FrameDecorator\Block as BlockFrameDecorator; |
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use Dompdf\FrameDecorator\TableCell as TableCellFrameDecorator; |
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use Dompdf\FrameDecorator\Text as TextFrameDecorator; |
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use Dompdf\Exception; |
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use Dompdf\Css\Style; |
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/** |
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* Reflows block frames |
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* |
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* @package dompdf |
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*/ |
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class Block extends AbstractFrameReflower |
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{ |
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// Minimum line width to justify, as fraction of available width |
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const MIN_JUSTIFY_WIDTH = 0.80; |
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/** |
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* @var BlockFrameDecorator |
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*/ |
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protected $_frame; |
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function __construct(BlockFrameDecorator $frame) |
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{ |
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parent::__construct($frame); |
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} |
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/** |
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* Calculate the ideal used value for the width property as per: |
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* http://www.w3.org/TR/CSS21/visudet.html#Computing_widths_and_margins |
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* |
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* @param float $width |
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* |
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* @return array |
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*/ |
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protected function _calculate_width($width) |
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{ |
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$frame = $this->_frame; |
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$style = $frame->get_style(); |
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$w = $frame->get_containing_block("w"); |
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if ($style->position === "fixed") { |
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$w = $frame->get_parent()->get_containing_block("w"); |
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} |
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$rm = $style->length_in_pt($style->margin_right, $w); |
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$lm = $style->length_in_pt($style->margin_left, $w); |
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$left = $style->length_in_pt($style->left, $w); |
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$right = $style->length_in_pt($style->right, $w); |
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// Handle 'auto' values |
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$dims = array($style->border_left_width, |
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$style->border_right_width, |
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$style->padding_left, |
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$style->padding_right, |
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$width !== "auto" ? $width : 0, |
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$rm !== "auto" ? $rm : 0, |
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$lm !== "auto" ? $lm : 0); |
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// absolutely positioned boxes take the 'left' and 'right' properties into account |
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if ($frame->is_absolute()) { |
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$absolute = true; |
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$dims[] = $left !== "auto" ? $left : 0; |
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$dims[] = $right !== "auto" ? $right : 0; |
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} else { |
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$absolute = false; |
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} |
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$sum = (float)$style->length_in_pt($dims, $w); |
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// Compare to the containing block |
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$diff = $w - $sum; |
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if ($diff > 0) { |
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if ($absolute) { |
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// resolve auto properties: see |
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// http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width |
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if ($width === "auto" && $left === "auto" && $right === "auto") { |
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if ($lm === "auto") { |
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$lm = 0; |
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} |
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if ($rm === "auto") { |
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$rm = 0; |
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} |
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// Technically, the width should be "shrink-to-fit" i.e. based on the |
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// preferred width of the content... a little too costly here as a |
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// special case. Just get the width to take up the slack: |
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$left = 0; |
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$right = 0; |
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$width = $diff; |
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} else if ($width === "auto") { |
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if ($lm === "auto") { |
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$lm = 0; |
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} |
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if ($rm === "auto") { |
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$rm = 0; |
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} |
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if ($left === "auto") { |
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$left = 0; |
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} |
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if ($right === "auto") { |
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$right = 0; |
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} |
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$width = $diff; |
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} else if ($left === "auto") { |
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if ($lm === "auto") { |
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$lm = 0; |
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} |
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if ($rm === "auto") { |
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$rm = 0; |
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} |
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if ($right === "auto") { |
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$right = 0; |
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} |
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$left = $diff; |
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} else if ($right === "auto") { |
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if ($lm === "auto") { |
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$lm = 0; |
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} |
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if ($rm === "auto") { |
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$rm = 0; |
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} |
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$right = $diff; |
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} |
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} else { |
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// Find auto properties and get them to take up the slack |
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if ($width === "auto") { |
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$width = $diff; |
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} else if ($lm === "auto" && $rm === "auto") { |
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$lm = $rm = round($diff / 2); |
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} else if ($lm === "auto") { |
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$lm = $diff; |
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} else if ($rm === "auto") { |
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$rm = $diff; |
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} |
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} |
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} else if ($diff < 0) { |
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// We are over constrained--set margin-right to the difference |
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$rm = $diff; |
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} |
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return array( |
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"width" => $width, |
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"margin_left" => $lm, |
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"margin_right" => $rm, |
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"left" => $left, |
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"right" => $right, |
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); |
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} |
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/** |
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* Call the above function, but resolve max/min widths |
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* |
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* @throws Exception |
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* @return array |
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*/ |
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protected function _calculate_restricted_width() |
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{ |
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$frame = $this->_frame; |
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$style = $frame->get_style(); |
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$cb = $frame->get_containing_block(); |
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if ($style->position === "fixed") { |
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$cb = $frame->get_root()->get_containing_block(); |
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} |
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//if ( $style->position === "absolute" ) |
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// $cb = $frame->find_positionned_parent()->get_containing_block(); |
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if (!isset($cb["w"])) { |
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throw new Exception("Box property calculation requires containing block width"); |
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} |
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// Treat width 100% as auto |
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if ($style->width === "100%") { |
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$width = "auto"; |
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} else { |
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$width = $style->length_in_pt($style->width, $cb["w"]); |
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} |
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$calculate_width = $this->_calculate_width($width); |
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$margin_left = $calculate_width['margin_left']; |
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$margin_right = $calculate_width['margin_right']; |
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$width = $calculate_width['width']; |
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$left = $calculate_width['left']; |
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$right = $calculate_width['right']; |
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// Handle min/max width |
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$min_width = $style->length_in_pt($style->min_width, $cb["w"]); |
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$max_width = $style->length_in_pt($style->max_width, $cb["w"]); |
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if ($max_width !== "none" && $min_width > $max_width) { |
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list($max_width, $min_width) = array($min_width, $max_width); |
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} |
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if ($max_width !== "none" && $width > $max_width) { |
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extract($this->_calculate_width($max_width)); |
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} |
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if ($width < $min_width) { |
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$calculate_width = $this->_calculate_width($min_width); |
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$margin_left = $calculate_width['margin_left']; |
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$margin_right = $calculate_width['margin_right']; |
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$width = $calculate_width['width']; |
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$left = $calculate_width['left']; |
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$right = $calculate_width['right']; |
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} |
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return array($width, $margin_left, $margin_right, $left, $right); |
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} |
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/** |
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* Determine the unrestricted height of content within the block |
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* not by adding each line's height, but by getting the last line's position. |
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* This because lines could have been pushed lower by a clearing element. |
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* |
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* @return float |
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*/ |
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protected function _calculate_content_height() |
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{ |
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$height = 0; |
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$lines = $this->_frame->get_line_boxes(); |
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if (count($lines) > 0) { |
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$last_line = end($lines); |
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$content_box = $this->_frame->get_content_box(); |
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$height = $last_line->y + $last_line->h - $content_box["y"]; |
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} |
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return $height; |
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} |
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/** |
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* Determine the frame's restricted height |
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* |
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* @return array |
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*/ |
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protected function _calculate_restricted_height() |
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{ |
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$frame = $this->_frame; |
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$style = $frame->get_style(); |
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$content_height = $this->_calculate_content_height(); |
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$cb = $frame->get_containing_block(); |
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$height = $style->length_in_pt($style->height, $cb["h"]); |
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$top = $style->length_in_pt($style->top, $cb["h"]); |
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$bottom = $style->length_in_pt($style->bottom, $cb["h"]); |
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$margin_top = $style->length_in_pt($style->margin_top, $cb["h"]); |
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$margin_bottom = $style->length_in_pt($style->margin_bottom, $cb["h"]); |
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if ($frame->is_absolute()) { |
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// see http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height |
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$dims = array($top !== "auto" ? $top : 0, |
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$style->margin_top !== "auto" ? $style->margin_top : 0, |
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$style->padding_top, |
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$style->border_top_width, |
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$height !== "auto" ? $height : 0, |
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$style->border_bottom_width, |
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$style->padding_bottom, |
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$style->margin_bottom !== "auto" ? $style->margin_bottom : 0, |
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$bottom !== "auto" ? $bottom : 0); |
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$sum = (float)$style->length_in_pt($dims, $cb["h"]); |
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$diff = $cb["h"] - $sum; |
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if ($diff > 0) { |
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if ($height === "auto" && $top === "auto" && $bottom === "auto") { |
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if ($margin_top === "auto") { |
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$margin_top = 0; |
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} |
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if ($margin_bottom === "auto") { |
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$margin_bottom = 0; |
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} |
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$height = $diff; |
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} else if ($height === "auto" && $top === "auto") { |
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if ($margin_top === "auto") { |
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$margin_top = 0; |
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} |
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if ($margin_bottom === "auto") { |
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$margin_bottom = 0; |
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} |
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$height = $content_height; |
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$top = $diff - $content_height; |
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} else if ($height === "auto" && $bottom === "auto") { |
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if ($margin_top === "auto") { |
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$margin_top = 0; |
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} |
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if ($margin_bottom === "auto") { |
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$margin_bottom = 0; |
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} |
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$height = $content_height; |
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$bottom = $diff - $content_height; |
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} else if ($top === "auto" && $bottom === "auto") { |
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if ($margin_top === "auto") { |
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$margin_top = 0; |
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} |
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|
|
if ($margin_bottom === "auto") { |
|
321
|
|
|
$margin_bottom = 0; |
|
322
|
|
|
} |
|
323
|
|
|
|
|
324
|
|
|
$bottom = $diff; |
|
325
|
|
|
} else if ($top === "auto") { |
|
326
|
|
|
if ($margin_top === "auto") { |
|
327
|
|
|
$margin_top = 0; |
|
328
|
|
|
} |
|
329
|
|
|
if ($margin_bottom === "auto") { |
|
330
|
|
|
$margin_bottom = 0; |
|
331
|
|
|
} |
|
332
|
|
|
|
|
333
|
|
|
$top = $diff; |
|
334
|
|
|
} else if ($height === "auto") { |
|
335
|
|
|
if ($margin_top === "auto") { |
|
336
|
|
|
$margin_top = 0; |
|
337
|
|
|
} |
|
338
|
|
|
if ($margin_bottom === "auto") { |
|
339
|
|
|
$margin_bottom = 0; |
|
340
|
|
|
} |
|
341
|
|
|
|
|
342
|
|
|
$height = $diff; |
|
343
|
|
|
} else if ($bottom === "auto") { |
|
344
|
|
|
if ($margin_top === "auto") { |
|
345
|
|
|
$margin_top = 0; |
|
346
|
|
|
} |
|
347
|
|
|
if ($margin_bottom === "auto") { |
|
348
|
|
|
$margin_bottom = 0; |
|
349
|
|
|
} |
|
350
|
|
|
|
|
351
|
|
|
$bottom = $diff; |
|
352
|
|
|
} else { |
|
353
|
|
|
if ($style->overflow === "visible") { |
|
354
|
|
|
// set all autos to zero |
|
355
|
|
|
if ($margin_top === "auto") { |
|
356
|
|
|
$margin_top = 0; |
|
357
|
|
|
} |
|
358
|
|
|
if ($margin_bottom === "auto") { |
|
359
|
|
|
$margin_bottom = 0; |
|
360
|
|
|
} |
|
361
|
|
|
if ($top === "auto") { |
|
362
|
|
|
$top = 0; |
|
363
|
|
|
} |
|
364
|
|
|
if ($bottom === "auto") { |
|
365
|
|
|
$bottom = 0; |
|
366
|
|
|
} |
|
367
|
|
|
if ($height === "auto") { |
|
368
|
|
|
$height = $content_height; |
|
369
|
|
|
} |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
// FIXME: overflow hidden |
|
373
|
|
|
} |
|
374
|
|
|
} |
|
375
|
|
|
|
|
376
|
|
|
} else { |
|
377
|
|
|
// Expand the height if overflow is visible |
|
378
|
|
|
if ($height === "auto" && $content_height > $height /* && $style->overflow === "visible" */) { |
|
379
|
|
|
$height = $content_height; |
|
380
|
|
|
} |
|
381
|
|
|
|
|
382
|
|
|
// FIXME: this should probably be moved to a seperate function as per |
|
383
|
|
|
// _calculate_restricted_width |
|
384
|
|
|
|
|
385
|
|
|
// Only handle min/max height if the height is independent of the frame's content |
|
386
|
|
|
if (!($style->overflow === "visible" || ($style->overflow === "hidden" && $height === "auto"))) { |
|
387
|
|
|
$min_height = $style->min_height; |
|
388
|
|
|
$max_height = $style->max_height; |
|
389
|
|
|
|
|
390
|
|
|
if (isset($cb["h"])) { |
|
391
|
|
|
$min_height = $style->length_in_pt($min_height, $cb["h"]); |
|
392
|
|
|
$max_height = $style->length_in_pt($max_height, $cb["h"]); |
|
393
|
|
|
} else if (isset($cb["w"])) { |
|
394
|
|
|
if (mb_strpos($min_height, "%") !== false) { |
|
395
|
|
|
$min_height = 0; |
|
396
|
|
|
} else { |
|
397
|
|
|
$min_height = $style->length_in_pt($min_height, $cb["w"]); |
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
if (mb_strpos($max_height, "%") !== false) { |
|
401
|
|
|
$max_height = "none"; |
|
402
|
|
|
} else { |
|
403
|
|
|
$max_height = $style->length_in_pt($max_height, $cb["w"]); |
|
404
|
|
|
} |
|
405
|
|
|
} |
|
406
|
|
|
|
|
407
|
|
|
if ($max_height !== "none" && $min_height > $max_height) { |
|
408
|
|
|
// Swap 'em |
|
409
|
|
|
list($max_height, $min_height) = array($min_height, $max_height); |
|
410
|
|
|
} |
|
411
|
|
|
|
|
412
|
|
|
if ($max_height !== "none" && $height > $max_height) { |
|
413
|
|
|
$height = $max_height; |
|
414
|
|
|
} |
|
415
|
|
|
|
|
416
|
|
|
if ($height < $min_height) { |
|
417
|
|
|
$height = $min_height; |
|
418
|
|
|
} |
|
419
|
|
|
} |
|
420
|
|
|
} |
|
421
|
|
|
|
|
422
|
|
|
return array($height, $margin_top, $margin_bottom, $top, $bottom); |
|
423
|
|
|
} |
|
424
|
|
|
|
|
425
|
|
|
/** |
|
426
|
|
|
* Adjust the justification of each of our lines. |
|
427
|
|
|
* http://www.w3.org/TR/CSS21/text.html#propdef-text-align |
|
428
|
|
|
*/ |
|
429
|
|
|
protected function _text_align() |
|
430
|
|
|
{ |
|
431
|
|
|
$style = $this->_frame->get_style(); |
|
432
|
|
|
$w = $this->_frame->get_containing_block("w"); |
|
433
|
|
|
$width = (float)$style->length_in_pt($style->width, $w); |
|
434
|
|
|
|
|
435
|
|
|
switch ($style->text_align) { |
|
436
|
|
|
default: |
|
437
|
|
|
case "left": |
|
438
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
439
|
|
|
if (!$line->left) { |
|
440
|
|
|
continue; |
|
441
|
|
|
} |
|
442
|
|
|
|
|
443
|
|
|
foreach ($line->get_frames() as $frame) { |
|
444
|
|
|
if ($frame instanceof BlockFrameDecorator) { |
|
445
|
|
|
continue; |
|
446
|
|
|
} |
|
447
|
|
|
$frame->set_position($frame->get_position("x") + $line->left); |
|
448
|
|
|
} |
|
449
|
|
|
} |
|
450
|
|
|
return; |
|
451
|
|
|
|
|
452
|
|
|
case "right": |
|
453
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
454
|
|
|
// Move each child over by $dx |
|
455
|
|
|
$dx = $width - $line->w - $line->right; |
|
456
|
|
|
|
|
457
|
|
|
foreach ($line->get_frames() as $frame) { |
|
458
|
|
|
// Block frames are not aligned by text-align |
|
459
|
|
|
if ($frame instanceof BlockFrameDecorator) { |
|
460
|
|
|
continue; |
|
461
|
|
|
} |
|
462
|
|
|
|
|
463
|
|
|
$frame->set_position($frame->get_position("x") + $dx); |
|
464
|
|
|
} |
|
465
|
|
|
} |
|
466
|
|
|
break; |
|
467
|
|
|
|
|
468
|
|
|
case "justify": |
|
469
|
|
|
// We justify all lines except the last one |
|
470
|
|
|
$lines = $this->_frame->get_line_boxes(); // needs to be a variable (strict standards) |
|
471
|
|
|
$last_line = array_pop($lines); |
|
472
|
|
|
|
|
473
|
|
|
foreach ($lines as $i => $line) { |
|
474
|
|
|
if ($line->br) { |
|
475
|
|
|
unset($lines[$i]); |
|
476
|
|
|
} |
|
477
|
|
|
} |
|
478
|
|
|
|
|
479
|
|
|
// One space character's width. Will be used to get a more accurate spacing |
|
480
|
|
|
$space_width = $this->get_dompdf()->getFontMetrics()->getTextWidth(" ", $style->font_family, $style->font_size); |
|
481
|
|
|
|
|
482
|
|
|
foreach ($lines as $line) { |
|
483
|
|
|
if ($line->left) { |
|
484
|
|
|
foreach ($line->get_frames() as $frame) { |
|
485
|
|
|
if (!$frame instanceof TextFrameDecorator) { |
|
486
|
|
|
continue; |
|
487
|
|
|
} |
|
488
|
|
|
|
|
489
|
|
|
$frame->set_position($frame->get_position("x") + $line->left); |
|
490
|
|
|
} |
|
491
|
|
|
} |
|
492
|
|
|
|
|
493
|
|
|
// Set the spacing for each child |
|
494
|
|
|
if ($line->wc > 1) { |
|
495
|
|
|
$spacing = ($width - ($line->left + $line->w + $line->right) + $space_width) / ($line->wc - 1); |
|
496
|
|
|
} else { |
|
497
|
|
|
$spacing = 0; |
|
498
|
|
|
} |
|
499
|
|
|
|
|
500
|
|
|
$dx = 0; |
|
501
|
|
|
foreach ($line->get_frames() as $frame) { |
|
502
|
|
|
if (!$frame instanceof TextFrameDecorator) { |
|
503
|
|
|
continue; |
|
504
|
|
|
} |
|
505
|
|
|
|
|
506
|
|
|
$text = $frame->get_text(); |
|
507
|
|
|
$spaces = mb_substr_count($text, " "); |
|
508
|
|
|
|
|
509
|
|
|
$char_spacing = (float)$style->length_in_pt($style->letter_spacing); |
|
510
|
|
|
$_spacing = $spacing + $char_spacing; |
|
511
|
|
|
|
|
512
|
|
|
$frame->set_position($frame->get_position("x") + $dx); |
|
513
|
|
|
$frame->set_text_spacing($_spacing); |
|
514
|
|
|
|
|
515
|
|
|
$dx += $spaces * $_spacing; |
|
516
|
|
|
} |
|
517
|
|
|
|
|
518
|
|
|
// The line (should) now occupy the entire width |
|
519
|
|
|
$line->w = $width; |
|
520
|
|
|
} |
|
521
|
|
|
|
|
522
|
|
|
// Adjust the last line if necessary |
|
523
|
|
|
if ($last_line->left) { |
|
524
|
|
|
foreach ($last_line->get_frames() as $frame) { |
|
525
|
|
|
if ($frame instanceof BlockFrameDecorator) { |
|
526
|
|
|
continue; |
|
527
|
|
|
} |
|
528
|
|
|
$frame->set_position($frame->get_position("x") + $last_line->left); |
|
529
|
|
|
} |
|
530
|
|
|
} |
|
531
|
|
|
break; |
|
532
|
|
|
|
|
533
|
|
|
case "center": |
|
534
|
|
|
case "centre": |
|
535
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
536
|
|
|
// Centre each line by moving each frame in the line by: |
|
537
|
|
|
$dx = ($width + $line->left - $line->w - $line->right) / 2; |
|
538
|
|
|
|
|
539
|
|
|
foreach ($line->get_frames() as $frame) { |
|
540
|
|
|
// Block frames are not aligned by text-align |
|
541
|
|
|
if ($frame instanceof BlockFrameDecorator) { |
|
542
|
|
|
continue; |
|
543
|
|
|
} |
|
544
|
|
|
|
|
545
|
|
|
$frame->set_position($frame->get_position("x") + $dx); |
|
546
|
|
|
} |
|
547
|
|
|
} |
|
548
|
|
|
break; |
|
549
|
|
|
} |
|
550
|
|
|
} |
|
551
|
|
|
|
|
552
|
|
|
/** |
|
553
|
|
|
* Align inline children vertically. |
|
554
|
|
|
* Aligns each child vertically after each line is reflowed |
|
555
|
|
|
*/ |
|
556
|
|
|
function vertical_align() |
|
557
|
|
|
{ |
|
558
|
|
|
$canvas = null; |
|
559
|
|
|
|
|
560
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
561
|
|
|
|
|
562
|
|
|
$height = $line->h; |
|
563
|
|
|
|
|
564
|
|
|
foreach ($line->get_frames() as $frame) { |
|
565
|
|
|
$style = $frame->get_style(); |
|
566
|
|
|
$isInlineBlock = ( |
|
567
|
|
|
'-dompdf-image' === $style->display |
|
568
|
|
|
|| 'inline-block' === $style->display |
|
569
|
|
|
|| 'inline-table' === $style->display |
|
570
|
|
|
); |
|
571
|
|
|
if (!$isInlineBlock && $style->display !== "inline") { |
|
572
|
|
|
continue; |
|
573
|
|
|
} |
|
574
|
|
|
|
|
575
|
|
|
if (!isset($canvas)) { |
|
576
|
|
|
$canvas = $frame->get_root()->get_dompdf()->get_canvas(); |
|
577
|
|
|
} |
|
578
|
|
|
|
|
579
|
|
|
$baseline = $canvas->get_font_baseline($style->font_family, $style->font_size); |
|
580
|
|
|
$y_offset = 0; |
|
581
|
|
|
|
|
582
|
|
|
//FIXME: The 0.8 ratio applied to the height is arbitrary (used to accommodate descenders?) |
|
583
|
|
|
if($isInlineBlock) { |
|
584
|
|
|
$lineFrames = $line->get_frames(); |
|
585
|
|
|
if (count($lineFrames) == 1) { |
|
586
|
|
|
continue; |
|
587
|
|
|
} |
|
588
|
|
|
$frameBox = $frame->get_frame()->get_border_box(); |
|
589
|
|
|
$imageHeightDiff = $height * 0.8 - (float)$frameBox['h']; |
|
590
|
|
|
|
|
591
|
|
|
$align = $frame->get_style()->vertical_align; |
|
592
|
|
|
if (in_array($align, Style::$vertical_align_keywords) === true) { |
|
593
|
|
|
switch ($align) { |
|
594
|
|
|
case "middle": |
|
595
|
|
|
$y_offset = $imageHeightDiff / 2; |
|
596
|
|
|
break; |
|
597
|
|
|
|
|
598
|
|
|
case "sub": |
|
599
|
|
|
$y_offset = 0.3 * $height + $imageHeightDiff; |
|
600
|
|
|
break; |
|
601
|
|
|
|
|
602
|
|
|
case "super": |
|
603
|
|
|
$y_offset = -0.2 * $height + $imageHeightDiff; |
|
604
|
|
|
break; |
|
605
|
|
|
|
|
606
|
|
|
case "text-top": // FIXME: this should be the height of the frame minus the height of the text |
|
607
|
|
|
$y_offset = $height - (float)$style->length_in_pt($style->get_line_height(), $style->font_size); |
|
608
|
|
|
break; |
|
609
|
|
|
|
|
610
|
|
|
case "top": |
|
611
|
|
|
break; |
|
612
|
|
|
|
|
613
|
|
|
case "text-bottom": // FIXME: align bottom of image with the descender? |
|
614
|
|
|
case "bottom": |
|
615
|
|
|
$y_offset = 0.3 * $height + $imageHeightDiff; |
|
616
|
|
|
break; |
|
617
|
|
|
|
|
618
|
|
|
case "baseline": |
|
619
|
|
|
default: |
|
620
|
|
|
$y_offset = $imageHeightDiff; |
|
621
|
|
|
break; |
|
622
|
|
|
} |
|
623
|
|
|
} else { |
|
624
|
|
|
$y_offset = $baseline - (float)$style->length_in_pt($align, $style->font_size) - (float)$frameBox['h']; |
|
625
|
|
|
} |
|
626
|
|
|
} else { |
|
627
|
|
|
$parent = $frame->get_parent(); |
|
628
|
|
|
if ($parent instanceof TableCellFrameDecorator) { |
|
629
|
|
|
$align = "baseline"; |
|
630
|
|
|
} else { |
|
631
|
|
|
$align = $parent->get_style()->vertical_align; |
|
632
|
|
|
} |
|
633
|
|
|
if (in_array($align, Style::$vertical_align_keywords) === true) { |
|
634
|
|
|
switch ($align) { |
|
635
|
|
|
case "middle": |
|
636
|
|
|
$y_offset = ($height * 0.8 - $baseline) / 2; |
|
637
|
|
|
break; |
|
638
|
|
|
|
|
639
|
|
|
case "sub": |
|
640
|
|
|
$y_offset = $height * 0.8 - $baseline * 0.5; |
|
641
|
|
|
break; |
|
642
|
|
|
|
|
643
|
|
|
case "super": |
|
644
|
|
|
$y_offset = $height * 0.8 - $baseline * 1.4; |
|
645
|
|
|
break; |
|
646
|
|
|
|
|
647
|
|
|
case "text-top": |
|
648
|
|
|
case "top": // Not strictly accurate, but good enough for now |
|
649
|
|
|
break; |
|
650
|
|
|
|
|
651
|
|
|
case "text-bottom": |
|
652
|
|
|
case "bottom": |
|
653
|
|
|
$y_offset = $height * 0.8 - $baseline; |
|
654
|
|
|
break; |
|
655
|
|
|
|
|
656
|
|
|
case "baseline": |
|
657
|
|
|
default: |
|
658
|
|
|
$y_offset = $height * 0.8 - $baseline; |
|
659
|
|
|
break; |
|
660
|
|
|
} |
|
661
|
|
|
} else { |
|
662
|
|
|
$y_offset = $height * 0.8 - $baseline - (float)$style->length_in_pt($align, $style->font_size); |
|
663
|
|
|
} |
|
664
|
|
|
} |
|
665
|
|
|
|
|
666
|
|
|
if ($y_offset !== 0) { |
|
667
|
|
|
$frame->move(0, $y_offset); |
|
668
|
|
|
} |
|
669
|
|
|
} |
|
670
|
|
|
} |
|
671
|
|
|
} |
|
672
|
|
|
|
|
673
|
|
|
/** |
|
674
|
|
|
* @param Frame $child |
|
675
|
|
|
*/ |
|
676
|
|
|
function process_clear(Frame $child) |
|
677
|
|
|
{ |
|
678
|
|
|
$child_style = $child->get_style(); |
|
679
|
|
|
$root = $this->_frame->get_root(); |
|
680
|
|
|
|
|
681
|
|
|
// Handle "clear" |
|
682
|
|
|
if ($child_style->clear !== "none") { |
|
683
|
|
|
//TODO: this is a WIP for handling clear/float frames that are in between inline frames |
|
684
|
|
|
if ($child->get_prev_sibling() !== null) { |
|
685
|
|
|
$this->_frame->add_line(); |
|
686
|
|
|
} |
|
687
|
|
|
if ($child_style->float !== "none" && $child->get_next_sibling()) { |
|
688
|
|
|
$this->_frame->set_current_line_number($this->_frame->get_current_line_number() - 1); |
|
689
|
|
|
} |
|
690
|
|
|
|
|
691
|
|
|
$lowest_y = $root->get_lowest_float_offset($child); |
|
692
|
|
|
|
|
693
|
|
|
// If a float is still applying, we handle it |
|
694
|
|
|
if ($lowest_y) { |
|
695
|
|
|
if ($child->is_in_flow()) { |
|
696
|
|
|
$line_box = $this->_frame->get_current_line_box(); |
|
697
|
|
|
$line_box->y = $lowest_y + $child->get_margin_height(); |
|
698
|
|
|
$line_box->left = 0; |
|
699
|
|
|
$line_box->right = 0; |
|
700
|
|
|
} |
|
701
|
|
|
|
|
702
|
|
|
$child->move(0, $lowest_y - $child->get_position("y")); |
|
703
|
|
|
} |
|
704
|
|
|
} |
|
705
|
|
|
} |
|
706
|
|
|
|
|
707
|
|
|
/** |
|
708
|
|
|
* @param Frame $child |
|
709
|
|
|
* @param float $cb_x |
|
710
|
|
|
* @param float $cb_w |
|
711
|
|
|
*/ |
|
712
|
|
|
function process_float(Frame $child, $cb_x, $cb_w) |
|
713
|
|
|
{ |
|
714
|
|
|
$child_style = $child->get_style(); |
|
715
|
|
|
$root = $this->_frame->get_root(); |
|
716
|
|
|
|
|
717
|
|
|
// Handle "float" |
|
718
|
|
|
if ($child_style->float !== "none") { |
|
719
|
|
|
$root->add_floating_frame($child); |
|
720
|
|
|
|
|
721
|
|
|
// Remove next frame's beginning whitespace |
|
722
|
|
|
$next = $child->get_next_sibling(); |
|
723
|
|
|
if ($next && $next instanceof TextFrameDecorator) { |
|
724
|
|
|
$next->set_text(ltrim($next->get_text())); |
|
725
|
|
|
} |
|
726
|
|
|
|
|
727
|
|
|
$line_box = $this->_frame->get_current_line_box(); |
|
728
|
|
|
list($old_x, $old_y) = $child->get_position(); |
|
729
|
|
|
|
|
730
|
|
|
$float_x = $cb_x; |
|
731
|
|
|
$float_y = $old_y; |
|
732
|
|
|
$float_w = $child->get_margin_width(); |
|
733
|
|
|
|
|
734
|
|
|
if ($child_style->clear === "none") { |
|
735
|
|
|
switch ($child_style->float) { |
|
736
|
|
|
case "left": |
|
737
|
|
|
$float_x += $line_box->left; |
|
738
|
|
|
break; |
|
739
|
|
|
case "right": |
|
740
|
|
|
$float_x += ($cb_w - $line_box->right - $float_w); |
|
741
|
|
|
break; |
|
742
|
|
|
} |
|
743
|
|
|
} else { |
|
744
|
|
|
if ($child_style->float === "right") { |
|
745
|
|
|
$float_x += ($cb_w - $float_w); |
|
746
|
|
|
} |
|
747
|
|
|
} |
|
748
|
|
|
|
|
749
|
|
|
if ($cb_w < $float_x + $float_w - $old_x) { |
|
750
|
|
|
// TODO handle when floating elements don't fit |
|
751
|
|
|
} |
|
752
|
|
|
|
|
753
|
|
|
$line_box->get_float_offsets(); |
|
754
|
|
|
|
|
755
|
|
|
if ($child->_float_next_line) { |
|
756
|
|
|
$float_y += $line_box->h; |
|
757
|
|
|
} |
|
758
|
|
|
|
|
759
|
|
|
$child->set_position($float_x, $float_y); |
|
760
|
|
|
$child->move($float_x - $old_x, $float_y - $old_y, true); |
|
761
|
|
|
} |
|
762
|
|
|
} |
|
763
|
|
|
|
|
764
|
|
|
/** |
|
765
|
|
|
* @param BlockFrameDecorator $block |
|
766
|
|
|
* @return mixed|void |
|
767
|
|
|
*/ |
|
768
|
|
|
function reflow(BlockFrameDecorator $block = null) |
|
769
|
|
|
{ |
|
770
|
|
|
|
|
771
|
|
|
// Check if a page break is forced |
|
772
|
|
|
$page = $this->_frame->get_root(); |
|
773
|
|
|
$page->check_forced_page_break($this->_frame); |
|
774
|
|
|
|
|
775
|
|
|
// Bail if the page is full |
|
776
|
|
|
if ($page->is_full()) { |
|
777
|
|
|
return; |
|
778
|
|
|
} |
|
779
|
|
|
|
|
780
|
|
|
// Generated content |
|
781
|
|
|
$this->_set_content(); |
|
782
|
|
|
|
|
783
|
|
|
// Collapse margins if required |
|
784
|
|
|
$this->_collapse_margins(); |
|
785
|
|
|
|
|
786
|
|
|
$style = $this->_frame->get_style(); |
|
787
|
|
|
$cb = $this->_frame->get_containing_block(); |
|
788
|
|
|
|
|
789
|
|
|
if ($style->position === "fixed") { |
|
790
|
|
|
$cb = $this->_frame->get_root()->get_containing_block(); |
|
791
|
|
|
} |
|
792
|
|
|
|
|
793
|
|
|
// Determine the constraints imposed by this frame: calculate the width |
|
794
|
|
|
// of the content area: |
|
795
|
|
|
list($w, $left_margin, $right_margin, $left, $right) = $this->_calculate_restricted_width(); |
|
796
|
|
|
|
|
797
|
|
|
// Store the calculated properties |
|
798
|
|
|
$style->width = $w; |
|
799
|
|
|
$style->margin_left = $left_margin; |
|
800
|
|
|
$style->margin_right = $right_margin; |
|
801
|
|
|
$style->left = $left; |
|
802
|
|
|
$style->right = $right; |
|
803
|
|
|
|
|
804
|
|
|
// Update the position |
|
805
|
|
|
$this->_frame->position(); |
|
806
|
|
|
list($x, $y) = $this->_frame->get_position(); |
|
807
|
|
|
|
|
808
|
|
|
// Adjust the first line based on the text-indent property |
|
809
|
|
|
$indent = (float)$style->length_in_pt($style->text_indent, $cb["w"]); |
|
810
|
|
|
$this->_frame->increase_line_width($indent); |
|
811
|
|
|
|
|
812
|
|
|
// Determine the content edge |
|
813
|
|
|
$top = (float)$style->length_in_pt(array($style->margin_top, |
|
814
|
|
|
$style->padding_top, |
|
815
|
|
|
$style->border_top_width), $cb["h"]); |
|
816
|
|
|
|
|
817
|
|
|
$bottom = (float)$style->length_in_pt(array($style->border_bottom_width, |
|
818
|
|
|
$style->margin_bottom, |
|
819
|
|
|
$style->padding_bottom), $cb["h"]); |
|
820
|
|
|
|
|
821
|
|
|
$cb_x = $x + (float)$left_margin + (float)$style->length_in_pt(array($style->border_left_width, |
|
822
|
|
|
$style->padding_left), $cb["w"]); |
|
823
|
|
|
|
|
824
|
|
|
$cb_y = $y + $top; |
|
825
|
|
|
|
|
826
|
|
|
$cb_h = ($cb["h"] + $cb["y"]) - $bottom - $cb_y; |
|
827
|
|
|
|
|
828
|
|
|
// Set the y position of the first line in this block |
|
829
|
|
|
$line_box = $this->_frame->get_current_line_box(); |
|
830
|
|
|
$line_box->y = $cb_y; |
|
831
|
|
|
$line_box->get_float_offsets(); |
|
832
|
|
|
|
|
833
|
|
|
// Set the containing blocks and reflow each child |
|
834
|
|
|
foreach ($this->_frame->get_children() as $child) { |
|
835
|
|
|
|
|
836
|
|
|
// Bail out if the page is full |
|
837
|
|
|
if ($page->is_full()) { |
|
838
|
|
|
break; |
|
839
|
|
|
} |
|
840
|
|
|
|
|
841
|
|
|
$child->set_containing_block($cb_x, $cb_y, $w, $cb_h); |
|
842
|
|
|
|
|
843
|
|
|
$this->process_clear($child); |
|
844
|
|
|
|
|
845
|
|
|
$child->reflow($this->_frame); |
|
846
|
|
|
|
|
847
|
|
|
// Don't add the child to the line if a page break has occurred |
|
848
|
|
|
if ($page->check_page_break($child)) { |
|
849
|
|
|
break; |
|
850
|
|
|
} |
|
851
|
|
|
|
|
852
|
|
|
$this->process_float($child, $cb_x, $w); |
|
853
|
|
|
} |
|
854
|
|
|
|
|
855
|
|
|
// Determine our height |
|
856
|
|
|
list($height, $margin_top, $margin_bottom, $top, $bottom) = $this->_calculate_restricted_height(); |
|
857
|
|
|
$style->height = $height; |
|
858
|
|
|
$style->margin_top = $margin_top; |
|
859
|
|
|
$style->margin_bottom = $margin_bottom; |
|
860
|
|
|
$style->top = $top; |
|
861
|
|
|
$style->bottom = $bottom; |
|
862
|
|
|
|
|
863
|
|
|
$orig_style = $this->_frame->get_original_style(); |
|
864
|
|
|
|
|
865
|
|
|
$needs_reposition = ($style->position === "absolute" && ($style->right !== "auto" || $style->bottom !== "auto")); |
|
866
|
|
|
|
|
867
|
|
|
// Absolute positioning measurement |
|
868
|
|
|
if ($needs_reposition) { |
|
869
|
|
|
if ($orig_style->width === "auto" && ($orig_style->left === "auto" || $orig_style->right === "auto")) { |
|
870
|
|
|
$width = 0; |
|
871
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
872
|
|
|
$width = max($line->w, $width); |
|
873
|
|
|
} |
|
874
|
|
|
$style->width = $width; |
|
875
|
|
|
} |
|
876
|
|
|
|
|
877
|
|
|
$style->left = $orig_style->left; |
|
878
|
|
|
$style->right = $orig_style->right; |
|
879
|
|
|
} |
|
880
|
|
|
|
|
881
|
|
|
// Calculate inline-block / float auto-widths |
|
882
|
|
|
if (($style->display === "inline-block" || $style->float !== 'none') && $orig_style->width === 'auto') { |
|
883
|
|
|
$width = 0; |
|
884
|
|
|
|
|
885
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
886
|
|
|
$line->recalculate_width(); |
|
887
|
|
|
|
|
888
|
|
|
$width = max($line->w, $width); |
|
889
|
|
|
} |
|
890
|
|
|
|
|
891
|
|
|
if ($width === 0) { |
|
892
|
|
|
foreach ($this->_frame->get_children() as $child) { |
|
893
|
|
|
$width += $child->calculate_auto_width(); |
|
894
|
|
|
} |
|
895
|
|
|
} |
|
896
|
|
|
|
|
897
|
|
|
$style->width = $width; |
|
898
|
|
|
} |
|
899
|
|
|
|
|
900
|
|
|
$this->_text_align(); |
|
901
|
|
|
$this->vertical_align(); |
|
902
|
|
|
|
|
903
|
|
|
// Absolute positioning |
|
904
|
|
|
if ($needs_reposition) { |
|
905
|
|
|
list($x, $y) = $this->_frame->get_position(); |
|
906
|
|
|
$this->_frame->position(); |
|
907
|
|
|
list($new_x, $new_y) = $this->_frame->get_position(); |
|
908
|
|
|
$this->_frame->move($new_x - $x, $new_y - $y, true); |
|
909
|
|
|
} |
|
910
|
|
|
|
|
911
|
|
|
if ($block && $this->_frame->is_in_flow()) { |
|
912
|
|
|
$block->add_frame_to_line($this->_frame); |
|
913
|
|
|
|
|
914
|
|
|
// May be inline-block |
|
915
|
|
|
if ($style->display === "block") { |
|
916
|
|
|
$block->add_line(); |
|
917
|
|
|
} |
|
918
|
|
|
} |
|
919
|
|
|
} |
|
920
|
|
|
|
|
921
|
|
|
/** |
|
922
|
|
|
* Determine current frame width based on contents |
|
923
|
|
|
* |
|
924
|
|
|
* @return float |
|
925
|
|
|
*/ |
|
926
|
|
|
public function calculate_auto_width() |
|
927
|
|
|
{ |
|
928
|
|
|
$width = 0; |
|
929
|
|
|
|
|
930
|
|
|
foreach ($this->_frame->get_line_boxes() as $line) { |
|
931
|
|
|
$line_width = 0; |
|
932
|
|
|
|
|
933
|
|
|
foreach ($line->get_frames() as $frame) { |
|
934
|
|
|
if ($frame->get_original_style()->width == 'auto') { |
|
935
|
|
|
$line_width += $frame->calculate_auto_width(); |
|
936
|
|
|
} else { |
|
937
|
|
|
$line_width += $frame->get_margin_width(); |
|
938
|
|
|
} |
|
939
|
|
|
} |
|
940
|
|
|
|
|
941
|
|
|
$width = max($line_width, $width); |
|
942
|
|
|
} |
|
943
|
|
|
|
|
944
|
|
|
$this->_frame->get_style()->width = $width; |
|
945
|
|
|
|
|
946
|
|
|
return $this->_frame->get_margin_width(); |
|
947
|
|
|
} |
|
948
|
|
|
} |
|
949
|
|
|
|
ladybirdweb /
agorainvoicing
