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previews can be created from files on the disc (e.g. the dropfolder)

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This commit is contained in:
Uwe Steinmann 2015-09-03 15:13:06 +02:00
parent 0a4e2861ce
commit c3982f05bf
1 changed files with 106 additions and 10 deletions
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116
SeedDMS_Preview/Preview/Previewer.php
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@ -95,10 +95,10 @@ class SeedDMS_Preview_Previewer {
$dir = $this->previewDir.'/'.$document->getDir();
switch(get_class($object)) {
case "SeedDMS_Core_DocumentContent":
$target = $dir.'p'.$object->getVersion().'-'.$width.'.png';
$target = $dir.'p'.$object->getVersion().'-'.$width;
break;
case "SeedDMS_Core_DocumentFile":
$target = $dir.'f'.$object->getID().'-'.$width.'.png';
$target = $dir.'f'.$object->getID().'-'.$width;
break;
default:
return false;
@ -106,7 +106,75 @@ class SeedDMS_Preview_Previewer {
return $target;
} /* }}} */
/**
* Create a preview image for a given file
*
* @param string $infile name of input file including full path
* @param string $dir directory relative to $this->previewDir
* @param string $mimetype MimeType of input file
* @param integer $width width of generated preview image
* @return boolean true on success, false on failure
*/
public function createRawPreview($infile, $dir, $mimetype, $width=0, $target='') { /* {{{ */
if($width == 0)
$width = $this->width;
else
$width = intval($width);
if(!$this->previewDir)
return false;
if(!is_dir($this->previewDir.'/'.$dir)) {
if (!SeedDMS_Core_File::makeDir($this->previewDir.'/'.$dir)) {
return false;
}
}
if(!file_exists($infile))
return false;
if(!$target)
$target = $this->previewDir.$dir.md5($infile).'-'.$width;
if($target != '' && (!file_exists($target.'.png') || filectime($target.'.png') < filectime($infile))) {
$cmd = '';
switch($mimetype) {
case "image/png":
case "image/gif":
case "image/jpeg":
case "image/jpg":
case "image/svg+xml":
$cmd = 'convert -resize '.$width.'x '.$infile.' '.$target.'.png';
break;
case "application/pdf":
case "application/postscript":
$cmd = 'convert -density 100 -resize '.$width.'x '.$infile.'[0] '.$target.'.png';
break;
case "text/plain":
$cmd = 'convert -resize '.$width.'x '.$infile.'[0] '.$target.'.png';
break;
case "application/x-compressed-tar":
$cmd = 'tar tzvf '.$infile.' | convert -density 100 -resize '.$width.'x text:-[0] '.$target.'.png';
break;
}
if($cmd) {
//exec($cmd);
try {
self::execWithTimeout($cmd);
} catch(Exception $e) {
}
}
return true;
}
return true;
} /* }}} */
public function createPreview($object, $width=0) { /* {{{ */
if($width == 0)
$width = $this->width;
else
$width = intval($width);
$document = $object->getDocument();
$file = $document->_dms->contentDir.$object->getPath();
$target = $this->getFileName($object, $width);
return $this->createRawPreview($file, $document->getDir(), $object->getMimeType(), $width, $target);
if($width == 0)
$width = $this->width;
else
@ -124,7 +192,7 @@ class SeedDMS_Preview_Previewer {
if(!file_exists($file))
return false;
$target = $this->getFileName($object, $width);
if($target !== false && (!file_exists($target) || filectime($target) < $object->getDate())) {
if($target !== false && (!file_exists($target.'.png') || filectime($target.'.png') < $object->getDate())) {
$cmd = '';
switch($object->getMimeType()) {
case "image/png":
@ -132,17 +200,17 @@ class SeedDMS_Preview_Previewer {
case "image/jpeg":
case "image/jpg":
case "image/svg+xml":
$cmd = 'convert -resize '.$width.'x '.$file.' '.$target;
$cmd = 'convert -resize '.$width.'x '.$file.' '.$target.'.png';
break;
case "application/pdf":
case "application/postscript":
$cmd = 'convert -density 100 -resize '.$width.'x '.$file.'[0] '.$target;
$cmd = 'convert -density 100 -resize '.$width.'x '.$file.'[0] '.$target.'.png';
break;
case "text/plain":
$cmd = 'convert -resize '.$width.'x '.$file.'[0] '.$target;
$cmd = 'convert -resize '.$width.'x '.$file.'[0] '.$target.'.png';
break;
case "application/x-compressed-tar":
$cmd = 'tar tzvf '.$file.' | convert -density 100 -resize '.$width.'x text:-[0] '.$target;
$cmd = 'tar tzvf '.$file.' | convert -density 100 -resize '.$width.'x text:-[0] '.$target.'.png';
break;
}
if($cmd) {
@ -158,6 +226,20 @@ class SeedDMS_Preview_Previewer {
} /* }}} */
public function hasRawPreview($infile, $dir, $width=0) { /* {{{ */
if($width == 0)
$width = $this->width;
else
$width = intval($width);
if(!$this->previewDir)
return false;
$target = $this->previewDir.$dir.md5($infile).'-'.$width;
if($target !== false && file_exists($target.'.png') && filectime($target.'.png') >= filectime($infile)) {
return true;
}
return false;
} /* }}} */
public function hasPreview($object, $width=0) { /* {{{ */
if($width == 0)
$width = $this->width;
@ -166,12 +248,26 @@ class SeedDMS_Preview_Previewer {
if(!$this->previewDir)
return false;
$target = $this->getFileName($object, $width);
if($target !== false && file_exists($target) && filectime($target) >= $object->getDate()) {
if($target !== false && file_exists($target.'.png') && filectime($target.'.png') >= $object->getDate()) {
return true;
}
return false;
} /* }}} */
public function getRawPreview($infile, $dir, $width=0) { /* {{{ */
if($width == 0)
$width = $this->width;
else
$width = intval($width);
if(!$this->previewDir)
return false;
$target = $this->previewDir.$dir.md5($infile).'-'.$width;
if($target && file_exists($target.'.png')) {
readfile($target.'.png');
}
} /* }}} */
public function getPreview($object, $width=0) { /* {{{ */
if($width == 0)
$width = $this->width;
@ -181,8 +277,8 @@ class SeedDMS_Preview_Previewer {
return false;
$target = $this->getFileName($object, $width);
if($target && file_exists($target)) {
readfile($target);
if($target && file_exists($target.'.png')) {
readfile($target.'.png');
}
} /* }}} */