Subversion-Projekte lars-tiefland.php_share

<?php

class StrategyWidthMinNowrap {

  var $_maxw;

  var $_cmaxw;

  function StrategyWidthMinNowrap() {

  }

  function add_width($delta) {

    $this->_cmaxw += $delta;

  }

  function line_break() {

    $this->_maxw  = max($this->_maxw, $this->_cmaxw);

    $this->_cmaxw = 0;

  }

  function apply(&$box, &$context) {

    $this->_maxw = 0;

    // We need to add text indent to the width

    $ti = $box->get_css_property(CSS_TEXT_INDENT);

    $this->add_width($ti->calculate($box));

    for ($i=0, $size = count($box->content); $i<$size; $i++) {

      $child =& $box->content[$i];

      if ($child->isLineBreak()) {

        $this->line_break();

      } elseif (!$child->out_of_flow()) {

        if (is_inline($child)) {

          // Inline boxes content will not be wrapped, so we may calculate its max width

          $this->add_width($child->get_max_width($context));

        } else {

          // Non-inline boxes cause line break

          $this->line_break();

          $this->add_width($child->get_min_width($context));

          $this->line_break();

        }

      };

    }

    // Check if last line have maximal width

    $this->line_break();

    // Apply width constraint to min width. Return maximal value

    $wc = $box->get_css_property(CSS_WIDTH);

    return max($this->_maxw, $wc->apply($this->_maxw, $box->parent->get_width())) + $box->_get_hor_extra();

  }

}

?>