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<?php
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class FeatureAutomargins {
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var $_top_margin;
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var $_bottom_margin;
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function FeatureAutomargins() {
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$this->_top_margin = 0;
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$this->_bottom_margin = 0;
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}
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function handle_before_page_heights($params) {
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$pipeline =& $params['pipeline'];
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$document =& $params['document'];
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$media =& $params['media'];
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$boxes = $pipeline->reflow_margin_boxes(0, $media);
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$this->_top_margin = max($boxes[CSS_MARGIN_BOX_SELECTOR_TOP]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT_CORNER]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_TOP_LEFT]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_TOP_CENTER]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_TOP_RIGHT_CORNER]->get_real_full_height());
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$this->_bottom_margin = max($boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT_CORNER]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_LEFT]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_CENTER]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT]->get_real_full_height(),
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$boxes[CSS_MARGIN_BOX_SELECTOR_BOTTOM_RIGHT_CORNER]->get_real_full_height());
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$media->margins['top'] = $this->_top_margin / mm2pt(1);
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$media->margins['bottom'] = $this->_bottom_margin / mm2pt(1);
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$pipeline->output_driver->update_media($media);
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$pipeline->_setupScales($media);
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}
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function install(&$pipeline, $params) {
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$dispatcher =& $pipeline->get_dispatcher();
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$dispatcher->add_observer('before-page-heights', array(&$this, 'handle_before_page_heights'));
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}
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}
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?>
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