function &_layout_item($data_id, &$media, $offset, &$context, &$postponed_filter)
{
$this->_reset_page_at_rules();
$css_cache = CSSCache::get();
$this->_defaultCSS = $css_cache->compile("resource://default.css", file_get_contents(HTML2PS_DIR . '/default.css'));
$this->_css = array();
$this->pushCSS();
$this->_cssState = array(new CSSState(CSS::get()));
$font = $this->_cssState[0]->getProperty(CSS_FONT);
$font->units2pt(0);
$this->_cssState[0]->setProperty(CSS_FONT, $font);
$data = $this->fetch($data_id);
if (is_null($data)) {
$dummy = null;
return $dummy;
}
// Run raw data filters
for ($i = 0; $i < count($this->data_filters); $i++) {
$data = $this->data_filters[$i]->process($data);
}
// Parse the raw data
$box =& $this->parser->process($data->get_content(), $this);
/**
* Run obligatory tree filters
*/
/**
* height-constraint processing filter;
*/
$filter = new PreTreeFilterHeightConstraint();
$filter->process($box, $data, $this);
/**
* Footnote support filter
*/
$filter = new PreTreeFilterFootnotes();
$filter->process($box, $data, $this);
// Run pre-layout tree filters
for ($i = 0, $size = count($this->pre_tree_filters); $i < $size; $i++) {
$this->pre_tree_filters[$i]->process($box, $data, $this);
}
/**
* Auto-detect top/bottom margin size (only if both top and bottom margins have zero value)
*/
if ($media->margins['top'] == 0 && $media->margins['bottom'] == 0) {
$boxes = $this->reflow_margin_boxes(0, $media);
$media->margins['top'] = max($boxes[CSS_MARGIN_BOX_SELECTOR_TOP]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT_CORNER]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_TOP_CENTER]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT_CORNER]->get_real_full_height()) / mm2pt(1);
$media->margins['bottom'] = max($boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT_CORNER]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_CENTER]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT]->get_real_full_height(), $boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT_CORNER]->get_real_full_height()) / mm2pt(1);
$this->output_driver->update_media($media);
}
$context = new FlowContext();
/**
* Extract absolute/fixed positioned boxes
*/
$positioned_filter = new PostTreeFilterPositioned($context);
$positioned_filter->process($box, null, $this);
$postponed_filter = new PostTreeFilterPostponed($this->output_driver);
$postponed_filter->process($box, null, $this);
$this->output_driver->prepare();
$status = $this->layout_engine->process($box, $media, $this->output_driver, $context);
if (is_null($status)) {
error_log("Pipeline::_process_item: layout routine failed");
$dummy = null;
return $dummy;
}
// Run post-layout tree filters
for ($i = 0; $i < count($this->post_tree_filters); $i++) {
$this->post_tree_filters[$i]->process($box);
}
return $box;
}
function reset_css()
{
$css_cache = CSSCache::get();
$this->_defaultCSS = $css_cache->compile('resource://default.css', file_get_contents(HTML2PS_DIR . 'default.css'), $this);
$this->_css = array();
$this->push_css();
$this->_cssState = array(new CSSState(CSS::get()));
}
function &_layout_item($data_id, &$media, $offset, &$context, &$postponed_filter)
{
//echo 'start:'.microtime().'<br>';
$this->_reset_page_at_rules();
$css_cache = CSSCache::get();
$this->_defaultCSS = $css_cache->compile('resource://default.css', file_get_contents(HTML2PS_DIR . '/default.css'));
$this->_css = array();
$this->pushCSS();
$this->_cssState = array(new CSSState(CSS::get()));
$font = $this->_cssState[0]->getProperty(CSS_FONT);
$font->units2pt(0);
$this->_cssState[0]->setProperty(CSS_FONT, $font);
$data = $this->fetch($data_id);
if (is_null($data)) {
return null;
}
// Run raw data filters
for ($i = 0; $i < count($this->data_filters); $i++) {
$data = $this->data_filters[$i]->process($data);
}
// Parse the raw data
# kornev, optimize
//echo '001:'.microtime().'<br>';
$box =& $this->parser->process($data->get_content(), $this, $media);
$this->_dispatcher->fire('after-parse', array('pipeline' => &$this, 'document' => &$box, 'media' => $media));
//echo '002:'.microtime().'<br>';
/**
* height-constraint processing filter;
*/
$filter = new PreTreeFilterHeightConstraint();
$filter->process($box, $data, $this);
/**
* Footnote support filter
*/
$filter = new PreTreeFilterFootnotes();
$filter->process($box, $data, $this);
// Run pre-layout tree filters
for ($i = 0, $size = count($this->pre_tree_filters); $i < $size; $i++) {
$this->pre_tree_filters[$i]->process($box, $data, $this);
}
$context = new FlowContext();
/**
* Extract absolute/fixed positioned boxes
*/
$positioned_filter = new PostTreeFilterPositioned($context);
$positioned_filter->process($box, null, $this);
$postponed_filter = new PostTreeFilterPostponed($this->output_driver);
$postponed_filter->process($box, null, $this);
$this->output_driver->prepare();
//echo 'start creations'.microtime().'<br>';
# kornev, optimize
$status = $this->layout_engine->process($box, $media, $this->output_driver, $context);
//echo 'end creations'.microtime().'<br>';
if (is_null($status)) {
error_log('Pipeline::_process_item: layout routine failed');
$dummy = null;
return $dummy;
}
// Run post-layout tree filters
for ($i = 0; $i < count($this->post_tree_filters); $i++) {
$this->post_tree_filters[$i]->process($box);
}
return $box;
}