_counters = array();
$this->_footnotes = array();
$this->_base_url = array("");
$this->_reset_page_at_rules();
$this->pre_tree_filters = array();
$this->_dispatcher =& new Dispatcher();
$this->_dispatcher->add_event("before-page");
$this->_dispatcher->add_event("after-page");
$this->_dispatcher->add_event("before-batch-item");
$this->_dispatcher->add_event("after-batch-item");
$this->_dispatcher->add_event("before-document");
$this->_dispatcher->add_event("after-document");
$this->_dispatcher->add_event("before-batch");
$this->_dispatcher->add_event("after-batch");
}
function add_fetcher(&$fetcher) {
array_unshift($this->fetchers, $fetcher);
}
function clear_box_id_map() {
$GLOBALS['__html_box_id_map'] = array();
}
function close() {
$this->_dispatcher->fire('after-batch', array('pipeline' => $this));
$this->output_driver->close();
$this->_output();
$this->output_driver->release();
// Non HTML-specific cleanup
//
Image::clear_cache();
}
function configure($options) {
$defaults = array(
'debugbox' => 0,
'draw_page_border' => false,
'cssmedia' => 'screen',
'scalepoints' => false,
'renderimages' => true,
'renderfields' => false,
'renderforms' => false,
'renderlinks' => false,
'pagewidth' => 800,
'landscape' => false,
'mode' => 'html',
'smartpagebreak' => true
);
// As a reminder: array_merge will not overwrite existing array keys
$GLOBALS['g_config'] = array_merge($options, $defaults);
}
function _addFootnote(&$note_call) {
$this->_footnotes[] =& $note_call;
}
// function _fillContent($content) {
// $filled = "";
// while (preg_match("/^.*?('.*?'|\".*?\"|counter\(.*?\))(.*)$/", $content, $matches)) {
// $data = $matches[1];
// $content = $matches[2];
// if ($data{0} != '\'' && $data{0} != '"') {
// $filled .= $this->_fillContentCounter($data);
// } else {
// $filled .= $this->_fillContentString($data);
// };
// };
// return $filled;
// }
// function _fillContentString($content) {
// $unescaped_content = css_process_escapes($content);
// $unquoted_content = css_remove_value_quotes($unescaped_content);
// return $unquoted_content;
// }
// function _fillContentCounter($content) {
// preg_match("/counter\((.*?)\)/", $content, $matches);
// return $this->_getCounter($matches[1]);
// }
function &get_counters() {
$counter_collection =& new CSSCounterCollection();
foreach ($this->_counters as $counter_name => $counter_value) {
$counter =& new CSSCounter($counter_name);
$counter->set($counter_value);
$counter_collection->add($counter);
};
return $counter_collection;
}
function _getCounter($counter) {
if (isset($this->_counters[$counter])) {
return $this->_counters[$counter];
};
/**
* CSS 2.1: Counters that are not in the scope of any
* 'counter-reset', are assumed to have been reset to 0 by a
* 'counter-reset' on the root element.
*/
return 0;
}
function _resetCounter($counter, $value) {
$this->_counters[$counter] = $value;
}
function _incrementCounter($counter, $value) {
$this->_counters[$counter] += $value;
}
function add_at_rule_page($at_rule) {
$selector =& $at_rule->getSelector();
$type = $selector->get_type();
$this->_page_at_rules[$type][] = $at_rule;
}
function _reset_page_at_rules() {
$this->_page_at_rules = array(CSS_PAGE_SELECTOR_ALL => array(),
CSS_PAGE_SELECTOR_FIRST => array(),
CSS_PAGE_SELECTOR_LEFT => array(),
CSS_PAGE_SELECTOR_RIGHT => array(),
CSS_PAGE_SELECTOR_NAMED => array());
}
function &getDefaultCSS() {
return $this->_defaultCSS;
}
function &getCurrentCSS() {
return $this->_css[0];
}
function &getCurrentCSSState() {
return $this->_cssState[0];
}
function pushCSS() {
array_unshift($this->_css, new CSSRuleset());
}
function popCSS() {
array_shift($this->_css);
}
/**
* Note that different pages may define different margin boxes (for
* example, left and right pages may have different headers). In
* this case, we should process @page rules in order of their
* specificity (no selector < :left / :right < :first) and extract
* margin boxes to be drawn
*
* @param $page_no Integer current page index (1-based)
* @param $media
*/
function render_margin_boxes($page_no, &$media) {
$boxes =& $this->reflow_margin_boxes($page_no, $media);
foreach ($boxes as $selector => $box) {
$boxes[$selector]->show($this->output_driver);
};
// Memleak fix
for ($i=0, $size = count($boxes); $i < $size; $i++) {
$boxes[$i]->destroy();
};
unset($boxes);
}
function &get_page_rules($page_no, &$media) {
$collection =& new CSSPropertyCollection();
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_ALL] as $rule) {
$collection->merge($rule->css);
};
/**
* Check which one of :right/:left selector is applicable (assuming that first page matches :right)
*/
if ($page_no % 2 == 0) {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_LEFT] as $rule) {
$collection->merge($rule->css);
};
} else {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_RIGHT] as $rule) {
$collection->merge($rule->css);
};
};
if ($page_no == 1) {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_FIRST] as $rule) {
$collection->merge($rule->css);
};
};
return $collection;
}
function &reflow_page_box($page_no, &$media) {
$rules =& $this->get_page_rules($page_no, $media);
$box =& BoxPage::create($this, $rules);
$box->reflow($media);
return $box;
}
function render_page_box($page_no, &$media) {
$box =& $this->reflow_page_box($page_no, $media);
$box->show($this->output_driver);
$box->destroy();
unset($box);
}
function &reflow_margin_boxes($page_no, &$media) {
$at_rules = $this->_getMarginBoxes($page_no, $media);
$boxes = array();
foreach ($at_rules as $at_rule) {
$selector = $at_rule->getSelector();
$boxes[$selector] =& BoxPageMargin::create($this, $at_rule);
};
foreach ($boxes as $selector => $box) {
$linebox_started = false;
$previous_whitespace = false;
$boxes[$selector]->reflow_whitespace($linebox_started, $previous_whitespace);
$boxes[$selector]->reflow_text($this->output_driver);
};
foreach ($boxes as $selector => $box) {
$boxes[$selector]->reflow($this->output_driver,
$media,
$boxes);
};
return $boxes;
}
/**
* Note that "+" operation on arrays will preserve existing elements; thus
* we need to process @page rules in order of decreasing specificity
*
*/
function _getMarginBoxes($page_no, $media) {
$applicable_margin_boxes = array();
/**
* Check if :first selector is applicable
*/
if ($page_no == 1) {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_FIRST] as $rule) {
$applicable_margin_boxes = $applicable_margin_boxes + $rule->getAtRuleMarginBoxes();
};
};
/**
* Check which one of :right/:left selector is applicable (assuming that first page matches :right)
*/
if ($page_no % 2 == 0) {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_LEFT] as $rule) {
$applicable_margin_boxes = $applicable_margin_boxes + $rule->getAtRuleMarginBoxes();
};
} else {
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_RIGHT] as $rule) {
$applicable_margin_boxes = $applicable_margin_boxes + $rule->getAtRuleMarginBoxes();
};
};
/**
* Extract margin boxes from plain @page rules
*/
foreach ($this->_page_at_rules[CSS_PAGE_SELECTOR_ALL] as $rule) {
$applicable_margin_boxes = $applicable_margin_boxes + $rule->getAtRuleMarginBoxes();
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT_CORNER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT_CORNER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP_LEFT_CORNER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP_LEFT,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_CENTER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_CENTER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP_CENTER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT_CORNER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT_CORNER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT_CORNER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT_CORNER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT_CORNER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT_CORNER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_CENTER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_CENTER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM_CENTER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT_CORNER])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT_CORNER] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT_CORNER,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_TOP])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_TOP] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_LEFT_TOP,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_MIDDLE])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_MIDDLE] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_LEFT_MIDDLE,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_BOTTOM])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_LEFT_BOTTOM] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_LEFT_BOTTOM,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_TOP])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_TOP] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_RIGHT_TOP,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_MIDDLE])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_MIDDLE] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_RIGHT_MIDDLE,$this);
};
if (!isset($applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_BOTTOM])) {
$applicable_margin_boxes[CSS_MARGIN_BOX_SELECTOR_RIGHT_BOTTOM] =&
new CSSAtRuleMarginBox(CSS_MARGIN_BOX_SELECTOR_RIGHT_BOTTOM,$this);
};
return $applicable_margin_boxes;
}
function _process_item($data_id, &$media, $offset=0) {
$this->_dispatcher->fire('before-batch-item', array('pipeline' => $this));
$box =& $this->_layout_item($data_id, $media, $offset, $context, $postponed_filter);
if (is_null($box)) {
error_log(sprintf(_('Could not fetch: %s'), (string)$data_id));
return true;
};
$this->_show_item($box, $offset, $context, $media, $postponed_filter);
// Clear CSS for this item
$this->popCSS();
$this->_defaultCSS = null;
// Memory leak fix: caused by circular references?
$box->destroy();
$this->_dispatcher->fire('after-batch-item', array('pipeline' => $this));
return true;
}
function _show_item(&$box, $offset, &$context, &$media, &$postponed_filter) {
$context->sort_absolute_positioned_by_z_index();
// Make batch-processing offset
$box->offset(0, $offset);
/**
* Calculate page heights
*/
if ($GLOBALS['g_config']['smartpagebreak']) {
$page_heights = PageBreakLocator::getPages($box,
mm2pt($media->real_height()),
mm2pt($media->height() - $media->margins['top']));
} else {
$num_pages = ceil($box->get_height() / mm2pt($media->real_height()));
$page_heights = array();
for ($i=0; $i<$num_pages; $i++) {
$page_heights[] = mm2pt($media->real_height());
};
};
$expected_pages = count($page_heights);
$this->output_driver->set_expected_pages($expected_pages);
$this->_resetCounter('pages', $expected_pages);
$this->_resetCounter('page', 0);
$this->_dispatcher->fire('before-document', array('pipeline' => $this,
'document' => $box));
// Output PDF pages using chosen PDF driver
for ($i=0; $i<$expected_pages; $i++) {
$this->_resetCounter('footnote', 0);
$this->_incrementCounter('page', 1);
$this->output_driver->save();
/**
* Note that margin boxes should be rendered before 'setup_clip', as it will trim all
* content rendered outside the 'main' page area
*/
$this->render_margin_boxes($i+1, $media);
$this->render_page_box($i+1, $media);
$this->output_driver->setPageHeight($page_heights[$i]);
$this->output_driver->setup_clip();
$this->_dispatcher->fire('before-page', array('pipeline' => $this,
'document' => $box,
'pageno' => $i));
if (is_null($box->show($this->output_driver))) {
error_log("Pipeline::_process_item: output routine failed");
return null;
};
/**
* Show postponed boxes - relative and floating boxes, as they should be
* shown over boxes on the same layer
*/
$this->output_driver->show_postponed();
$this->renderAbsolutePositioned($context);
$this->output_driver->restore();
$this->renderFixedPositioned($context);
$this->renderFootnotes();
global $g_config;
if ($g_config['draw_page_border']) {
$this->output_driver->draw_page_border();
};
$this->_dispatcher->fire('after-page', array('pipeline' => $this,
'document' => $box,
'pageno' => $i));
// Add page if currently rendered page is not last
if ($i < $expected_pages-1) {
$this->output_driver->next_page($page_heights[$i]);
};
// Restore postponed list for the next page
$postponed_filter->process($box, null, $this);
};
$this->_dispatcher->fire('after-document', array('pipeline' => $this,
'document' => $box));
}
function _output() {
$temporary_output_filename = $this->output_driver->get_filename();
for ($i=0; $ioutput_filters); $i++) {
$temporary_output_filename = $this->output_filters[$i]->process($temporary_output_filename);
};
// Determine the content type of the result
$content_type = null;
$i = count($this->output_filters)-1;
while (($i >= 0) && (is_null($content_type))) {
$content_type = $this->output_filters[$i]->content_type();
$i--;
};
if (is_null($content_type)) {
$content_type = $this->output_driver->content_type();
};
$this->destination->process($temporary_output_filename, $content_type);
unlink($temporary_output_filename);
}
function set_destination(&$destination) {
$this->destination =& $destination;
}
function &fetch($data_id) {
if (count($this->fetchers) == 0) {
ob_start();
include(HTML2PS_DIR.'/templates/error._no_fetchers.tpl');
$this->error_message = ob_get_contents();
ob_end_clean();
return null;
};
// Fetch data
for ($i=0; $ifetchers); $i++) {
$data = $this->fetchers[$i]->get_data($data_id);
if ($data != null) {
$this->push_base_url($this->fetchers[$i]->get_base_url());
return $data;
};
};
if (defined('DEBUG_MODE')) {
error_log(sprintf('Could not fetch %s', $data_id));
};
$null = null;
return $null;
}
function process($data_id, &$media) {
return $this->process_batch(array($data_id), $media);
}
function _setupScales(&$media) {
global $g_config;
global $g_px_scale;
global $g_pt_scale;
$g_px_scale = floor(mm2pt($media->width() - $media->margins['left'] - $media->margins['right'])) / $media->pixels;
if ($g_config['scalepoints']) {
$g_pt_scale = $g_px_scale * 1.33; // This is a magic number, just don't touch it, or everything will explode!
} else {
$g_pt_scale = 1.0;
};
}
/**
* Processes an set of URLs ot once; every URL is rendered on the separate page and
* merged to one PDF file.
*
* Note: to reduce peak memory requirement, URLs are processed one-after-one.
*
* @param Array $data_id_array Array of page identifiers to be processed (usually URLs or files paths)
* @param Media $media Object describing the media to render for (size, margins, orientaiton & resolution)
*/
function process_batch($data_id_array, &$media) {
$this->clear_box_id_map();
// Save and disable magic_quotes_runtime
$mq_runtime = get_magic_quotes_runtime();
set_magic_quotes_runtime(0);
$this->_prepare($media);
$this->_dispatcher->fire('before-batch', array('pipeline' => $this));
$i = 0;
$offset = 0;
foreach ($data_id_array as $data_id) {
$this->_process_item($data_id, $media, $offset);
$i++;
if ($ireal_height());
$this->output_driver->next_page(0);
$offset = $this->output_driver->offset;
};
};
$this->close();
// Restore magic_quotes_runtime setting
set_magic_quotes_runtime($mq_runtime);
return true;
}
function error_message() {
$message = file_get_contents(HTML2PS_DIR.'/templates/error._header.tpl');
$message .= $this->error_message;
for ($i=0; $ifetchers); $i++) {
$message .= $this->fetchers[$i]->error_message();
};
$message .= $this->output_driver->error_message();
$message .= file_get_contents(HTML2PS_DIR.'/templates/error._footer.tpl');
return $message;
}
function push_base_url($url) {
array_unshift($this->_base_url, $url);
}
function pop_base_url() {
array_shift($this->_base_url);
}
function get_base_url() {
return $this->_base_url[0];
}
function guess_url($src) {
return guess_url($src, $this->get_base_url());
}
function renderFootnotes() {
/**
* Render every footnote defined (note-call element is visible) on a current page
*/
$footnote_y = $this->output_driver->getFootnoteTop() - FOOTNOTE_LINE_TOP_GAP - FOOTNOTE_LINE_BOTTOM_GAP;
$footnote_x = $this->output_driver->getPageLeft();
$footnotes_found = false;
foreach ($this->_footnotes as $footnote) {
// Note that footnote area for current page have been already defined,
// as show_foonote is called after note-call boxes were placed.
if ($this->output_driver->contains($footnote->_note_call_box)) {
$footnotes_found = true;
$footnote_y = $footnote->show_footnote($this->output_driver,
$footnote_x,
$footnote_y);
$footnote_y -= FOOTNOTE_GAP;
};
};
/**
* Draw thin line separating footnotes from page content
*/
if ($footnotes_found) {
$this->output_driver->setrgbcolor(0,0,0);
$this->output_driver->moveto($this->output_driver->getPageLeft(),
$this->output_driver->getFootnoteTop() - FOOTNOTE_LINE_TOP_GAP);
$this->output_driver->lineto($this->output_driver->getPageLeft() + $this->output_driver->getPageWidth()*FOOTNOTE_LINE_PERCENT/100,
$this->output_driver->getFootnoteTop() - FOOTNOTE_LINE_TOP_GAP);
$this->output_driver->stroke();
};
}
function renderAbsolutePositioned(&$context) {
for ($j=0, $size = count($context->absolute_positioned); $j<$size; $j++) {
$current_box =& $context->absolute_positioned[$j];
if ($current_box->getCSSProperty(CSS_VISIBILITY) === VISIBILITY_VISIBLE) {
$this->output_driver->save();
$current_box->_setupClip($this->output_driver);
if (is_null($current_box->show($this->output_driver))) {
return null;
};
$this->output_driver->restore();
};
};
$this->output_driver->show_postponed_in_absolute();
}
function renderFixedPositioned(&$context) {
for ($j=0, $size = count($context->fixed_positioned); $j<$size; $j++) {
$current_box =& $context->fixed_positioned[$j];
if ($current_box->getCSSProperty(CSS_VISIBILITY) === VISIBILITY_VISIBLE) {
$this->output_driver->save();
$current_box->_setupClip($this->output_driver);
if (is_null($current_box->show_fixed($this->output_driver))) {
return null;
};
$this->output_driver->restore();
};
};
$this->output_driver->show_postponed_in_fixed();
}
function _prepare(&$media) {
$this->_setupScales($media);
$GLOBALS['g_media'] =& $media;
$this->output_driver->reset($media);
}
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; $idata_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; $ipost_tree_filters); $i++) {
$this->post_tree_filters[$i]->process($box);
};
return $box;
}
function &getDispatcher() {
return $this->_dispatcher;
}
function get_current_page_name() {
return $this->_current_page_name;
}
function set_current_page_name($name) {
$this->_current_page_name = $name;
}
}
?>