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<?php
/* OpenDb - Open Media Lending Database
Copyright (C) 2001,2002 by Jason Pell
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
include_once('./functions/phpthumb/phpthumb.class.php');
include_once('./functions/fileutils.php');
include_once('./functions/utils.php');
/**
* If extension provided use that instead of reparsing the filename.
*/
function is_thumbable_image_file($file, $extension = NULL)
{
global $CONFIG_VARS;
if($extension==NULL)
{
$file_r = parse_file($file);
$extension = $file_r['extension'];
}
if(in_array(strtolower($extension), $CONFIG_VARS['thumbnail.supported_input_formats']))
return TRUE;
else
return FALSE;
}
/*
*
*/
function get_thumbnail_filename($file_r)
{
global $CONFIG_VARS;
if(!is_array($file_r))
{
$file = $file_r;
$file_r = NULL;
$file_r = parse_file($file);
}
return str_replace('{filename}', $file_r['name'], $CONFIG_VARS['thumbnail.item_files_thumbnail_mask']);
}
/**
* Assumes the $file has already been written
*/
function generate_thumbnail($save_dir, $file, &$errors)
{
global $CONFIG_VARS;
global $HTTP_SESSION_VARS;
if(is_dir($save_dir))
{
// remove last slash.
if(substr($save_dir,-1) == '/')
$save_dir = substr($save_dir,0,-1);
if(is_file($save_dir.'/'.$file))
{
$file_r = parse_file($file);
// only support these image types.
if(is_thumbable_image_file(NULL, $file_r['extension']))
{
$thumbimgname = get_thumbnail_filename($file_r);
$phpThumb = new phpThumb();
$phpThumb->config_error_die_on_error = false;
// configure the size of the thumbnail.
if(is_array($CONFIG_VARS['thumbnail.item_image_size']))
{
if(is_numeric($CONFIG_VARS['thumbnail.item_image_size']['width']))
$phpThumb->w = $CONFIG_VARS['thumbnail.item_image_size']['width'];
else if(is_numeric($CONFIG_VARS['thumbnail.item_image_size']['height']))
$phpThumb->h = $CONFIG_VARS['thumbnail.item_image_size']['height'];
}
else
{
$phpThumb->h = 100;
}
if(strlen($CONFIG_VARS['thumbnail.output_format'])>0)
{
if($CONFIG_VARS['thumbnail.output_format'] != 'jpg')
$phpThumb->config_output_format = $CONFIG_VARS['thumbnail.output_format'];
else
$phpThumb->config_output_format = 'jpeg'; // 'jpg might be configured by mistake so support it.
}
else
{
// default
$phpThumb->config_output_format = 'jpeg';
}
$phpThumb->setSourceFilename($save_dir.'/'.$file);
// generate & output thumbnail
if ($phpThumb->GenerateThumbnail())
{
$phpThumb->RenderToFile($save_dir.'/'.$thumbimgname);
opendb_log("Image thumbnail generated. (directory=".$save_dir.", file=".$file.", thumbnail=".$thumbimgname.", update_who=".$HTTP_SESSION_VARS['user_id'].")");
return TRUE;
}
else
{
// do something with debug/error messages
if(is_not_empty_array($phpThumb->debugmessages))
$errors = $phpThumb->debugmessages;
else if(strlen($phpThumb->debugmessages)>0) // single array element
$errors[] = $phpThumb->debugmessages;
opendb_log("Image thumbnail not generated. (directory=".$save_dir.", file=".$file.", thumbnail=".$thumbimgname.") [".implode(";",$errors)."]");
return FALSE;
}
}
else
{
opendb_log("File not supported for thumbnail generation (file=".$file.")");
return FALSE;
}
}//if(is_file($save_dir.'/'.$file))
else
{
opendb_log("Image not found (file=".$file.")");
return FALSE;
}
}
else
{
opendb_log("Invalid item files directory specified. (directory=".$save_dir.")");
return FALSE;
}
}
?>
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