printer.inc.php
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<?php
/**
* $Id$
*
* Small non-domain-specific utility functions
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009 KnowledgeTree Inc.
*
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*/
/**
* Class that creates printer friendly version of any referer page
* Prints any content, and has ability to attach css styles to the printing context
**/
class printer {
/**
* This is the context of the document to be printed
*
* @var string $_context
*/
var $_context = 0;
/**
* Prep string for line endings
*
* @param string $str
* @return string
*/
private function _prepareString($str)
{
$str = str_replace("\r", '', $str);
$str = str_replace("\n", '\n', $str);
$str = str_replace("\047", "\\'", $str);
$str = str_replace('"', '\"', $str);
return $str;
}
/**
* Referer type function call to get the body
* of a document to be printed
*
* @param file $fname
* @return string
*/
function readBody($fname)
{
$html = '';
ob_start();
if (@readfile($fname))$html = ob_get_contents();
ob_end_clean();
if (preg_match('#<body[^>]*>(.+?)</body>#is', $html, $matches)) {
$html = $matches[1];
}
return $html;
}
/**
* Main context for printing. Consits of the Css for layout
* and javascript for the print window
*
* @param string $printHtml
* @param string $stylesheet
* @return string context
*/
function addPrintContext($printHtml, $stylesheet = array())
{
$this->_context += 1;
$printHtml = $this->_prepareString($printHtml);
echo '<!-- PRINTING CONTEXT ' . $this->_context . ' -->' . "\n";
echo '<style type="text/css">' . "\n";
echo '@media print {' . "\n";
echo ' #KTScreenOut' . $this->_context . ' { display: none; }' . "\n";
echo ' #print_ico { display: none; }' . "\n";
echo ' head title { display: none; }' . "\n";
foreach ($stylesheet as $k => $v) {
echo ' ' . $k . ' { ' . $v . '}' . "\n";
}
echo '}' . "\n";
echo '@media screen {' . "\n";
echo ' #KTPrintOut' . $this->_context . ' { display: none; }' . "\n";
echo '}' . "\n";
echo '</style>' . "\n";
echo '<script type="text/javascript" language="JavaScript">' . "\n";
echo 'function KT_GoPrint_' . $this->_context . '()' . "\n";
echo '{' . "\n";
echo ' document.body.innerHTML = \'<div id="KTScreenOut' . $this->_context . '">\' + document.body.innerHTML + \'<\/div>\';' . "\n";
echo ' document.body.innerHTML += \'<div id="KTPrintOut' . $this->_context . '">' . $printHtml . '<\/div>\';' . "\n";
echo ' window.print();' . "\n";
echo '}' . "\n";
echo '</script>' . "\n";
echo '<!-- END OF PRINTING CONTEXT ' . $this->_context . ' -->' . "\n";
return $this->_context;
}
/**
* Add show print link on page
*
* @param string $context
* @param string $linkText
* @param string $attributes
*/
function showPrintLink($context, $linkText, $attributes = '')
{
$hostPath = KTUtil::kt_url() . '/resources/graphics/printer.gif';
echo '<a href="javascript:KT_GoPrint_' . $context . '()"' . (!empty($attributes) ? ' ' . $attributes : '') . '>
<img src="'.$hostPath.'"align="left" title="'.$linkText.'" border="0" id="print_ico"/></a>';
}
/**
* Add show print button
*
* @param string $context
* @param string $buttonText
* @param string $attributes
*/
function showPrintButton($context, $buttonText, $attributes = '')
{
echo '<input type="button" value="' . $buttonText . '"' . (!empty($attributes) ? ' ' . $attributes : '') . ' onclick="KT_GoPrint_' . $context . '()" />';
}
}
?>