mirror of
https://git.code.sf.net/p/seeddms/code
synced 2025-02-07 15:44:58 +00:00
155 lines
3.7 KiB
PHP
155 lines
3.7 KiB
PHP
<?php
|
|
/**
|
|
* Implementation of preview documents
|
|
*
|
|
* @category DMS
|
|
* @package SeedDMS_Preview
|
|
* @license GPL 2
|
|
* @version @version@
|
|
* @author Uwe Steinmann <uwe@steinmann.cx>
|
|
* @copyright Copyright (C) 2010, Uwe Steinmann
|
|
* @version Release: @package_version@
|
|
*/
|
|
|
|
|
|
/**
|
|
* Class for managing creation of preview images for documents.
|
|
*
|
|
* @category DMS
|
|
* @package SeedDMS_Preview
|
|
* @version @version@
|
|
* @author Uwe Steinmann <uwe@steinmann.cx>
|
|
* @copyright Copyright (C) 2011, Uwe Steinmann
|
|
* @version Release: @package_version@
|
|
*/
|
|
class SeedDMS_Preview_Previewer {
|
|
/**
|
|
* @var string $cacheDir location in the file system where all the
|
|
* cached data like thumbnails are located. This should be an
|
|
* absolute path.
|
|
* @access public
|
|
*/
|
|
public $previewDir;
|
|
|
|
/**
|
|
* @var integer $width maximum width/height of resized image
|
|
* @access protected
|
|
*/
|
|
protected $width;
|
|
|
|
function __construct($previewDir, $width=40) {
|
|
if(!is_dir($previewDir)) {
|
|
if (!SeedDMS_Core_File::makeDir($previewDir)) {
|
|
$this->previewDir = '';
|
|
} else {
|
|
$this->previewDir = $previewDir;
|
|
}
|
|
} else {
|
|
$this->previewDir = $previewDir;
|
|
}
|
|
$this->width = intval($width);
|
|
}
|
|
|
|
/**
|
|
* Retrieve the physical filename of the preview image on disk
|
|
*
|
|
* @param object $object document content or document file
|
|
* @param integer $width width of preview image
|
|
* @return string file name of preview image
|
|
*/
|
|
protected function getFileName($object, $width) { /* }}} */
|
|
$document = $object->getDocument();
|
|
$dir = $this->previewDir.'/'.$document->getDir();
|
|
switch(get_class($object)) {
|
|
case "SeedDMS_Core_DocumentContent":
|
|
$target = $dir.'p'.$object->getVersion().'-'.$width.'.png';
|
|
break;
|
|
case "SeedDMS_Core_DocumentFile":
|
|
$target = $dir.'f'.$object->getID().'-'.$width.'.png';
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return $target;
|
|
} /* }}} */
|
|
|
|
public function createPreview($object, $width=0) { /* {{{ */
|
|
if($width == 0)
|
|
$width = $this->width;
|
|
else
|
|
$width = intval($width);
|
|
if(!$this->previewDir)
|
|
return false;
|
|
$document = $object->getDocument();
|
|
$dir = $this->previewDir.'/'.$document->getDir();
|
|
if(!is_dir($dir)) {
|
|
if (!SeedDMS_Core_File::makeDir($dir)) {
|
|
return false;
|
|
}
|
|
}
|
|
$file = $document->_dms->contentDir.$object->getPath();
|
|
if(!file_exists($file))
|
|
return false;
|
|
$target = $this->getFileName($object, $width);
|
|
if($target !== false && !file_exists($target)) {
|
|
$cmd = '';
|
|
switch($object->getMimeType()) {
|
|
case "image/png":
|
|
case "image/gif":
|
|
case "image/jpeg":
|
|
case "image/jpg":
|
|
$cmd = 'convert -resize '.$width.'x'.$width.' '.$file.' '.$target;
|
|
break;
|
|
case "application/pdf":
|
|
$cmd = 'convert -density 18 -resize '.$width.'x'.$width.' '.$file.'[0] '.$target;
|
|
}
|
|
if($cmd) {
|
|
system( $cmd);
|
|
}
|
|
return true;
|
|
}
|
|
return true;
|
|
|
|
} /* }}} */
|
|
|
|
public function hasPreview($object, $width=0) { /* {{{ */
|
|
if($width == 0)
|
|
$width = $this->width;
|
|
else
|
|
$width = intval($width);
|
|
if(!$this->previewDir)
|
|
return false;
|
|
$target = $this->getFileName($object, $width);
|
|
if($target && file_exists($target)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
} /* }}} */
|
|
|
|
public function getPreview($object, $width=0) { /* {{{ */
|
|
if($width == 0)
|
|
$width = $this->width;
|
|
else
|
|
$width = intval($width);
|
|
if(!$this->previewDir)
|
|
return false;
|
|
|
|
$target = $this->getFileName($object, $width);
|
|
if($target && file_exists($target)) {
|
|
readfile($target);
|
|
}
|
|
} /* }}} */
|
|
|
|
public function deletePreview($document, $object, $width=0) { /* {{{ */
|
|
if($width == 0)
|
|
$width = $this->width;
|
|
else
|
|
$width = intval($width);
|
|
if(!$this->previewDir)
|
|
return false;
|
|
|
|
$target = $this->getFileName($object, $width);
|
|
} /* }}} */
|
|
}
|
|
?>
|