/**
* Create thumbnail.
*
* @param string $path absolute path to original image
* @param int $cwidth max. thumbnail width
* @param int $cheight max. thumbnail height
* @return real path to thumnail
*/
static function thumb($path, $cwidth = null, $cheight = null)
{
if (!$path) {
$path = 'components' . DS . 'com_bookpro' . DS . 'assets' . DS . 'images' . DS . 'no_image.jpg';
}
$config = JComponentHelper::getParams('com_bookpro');
/* @var $config BookingConfig */
if (!is_file($path)) {
return '';
}
if (!$cwidth && !$cheight) {
return '';
}
static $thumbs;
$aroot = JPATH_ROOT . '/cache/com_bookpro';
$ini = $aroot . DS . 'thumbs.ini';
if (is_null($thumbs)) {
$thumbs = array();
if (file_exists($ini)) {
$thumbs = parse_ini_file($ini);
if ($thumbs === false) {
$thumbs = array();
}
}
}
jimport('joomla.filesystem.file');
//$name = JFile::getName($path);
$name = basename($path);
$ext = JFile::getExt($path);
$ext = '.' . $ext;
$names[] = str_replace($ext, '', $name);
if ($cwidth) {
$names[] = 'w' . $cwidth;
}
if ($cheight) {
$names[] = 'h' . $cheight;
}
$names[] = $ext;
$name = implode('', $names);
if (isset($thumbs[$name])) {
$rpath = $thumbs[$name];
$apath = AImage::abspath($rpath);
if (file_exists($apath)) {
return $thumbs[$name];
} else {
unset($thumbs[$name]);
}
}
$data = getimagesize($path);
if ($data === false) {
return '';
}
list($width, $height, $type) = $data;
switch ($type) {
case 1:
case 2:
case 3:
break;
default:
return '';
}
if ($width <= $cwidth && $height <= $cheight) {
$rpath = AImage::realpath($path);
return $rpath;
}
if ($cwidth > $width) {
$cwidth = $width;
}
if ($cheight > $height) {
$cheight = $height;
}
$rroot = JURI::root() . 'cache/com_bookpro/';
if (!file_exists($aroot)) {
if (!@mkdir($aroot, 0775, true)) {
return '';
}
}
$crc = (string) crc32($name);
$d = array();
for ($i = 0; $i < CACHE_IMAGES_DEPTH; $i++) {
$d[] = substr($crc, $i, 1);
}
$arthumb = $aroot . DS . implode(DS, $d) . DS;
$athumb = $arthumb . $name;
$rthumb = $rroot . implode('/', $d) . '/' . $name;
if (file_exists($athumb)) {
return $rthumb;
}
if (!file_exists($arthumb)) {
if (!@mkdir($arthumb, 0775, true)) {
return '';
}
}
$destX = 0;
$destY = 0;
$srcX = 0;
$srcY = 0;
$nwidth = $cwidth;
$nheight = $cheight;
$sheight = $height;
$swidth = $width;
if ($cwidth && $cheight) {
$percent = $cwidth / $cheight;
$sheight = round($width / $percent);
if ($sheight > $height) {
$sheight = $height;
$swidth = round($height * $percent);
}
$srcX = round(($width - $swidth) / 2);
$srcY = round(($height - $sheight) / 2);
} elseif ($cwidth) {
$nheight = round($height * $nwidth / $width);
} elseif ($cheight) {
$nwidth = round($width * $nheight / $height);
}
$thumb = imagecreatetruecolor($nwidth, $nheight);
switch ($type) {
case 1:
$source = imagecreatefromgif($path);
imagealphablending($thumb, false);
imagesavealpha($thumb, true);
break;
case 2:
$source = imagecreatefromjpeg($path);
break;
case 3:
$source = imagecreatefrompng($path);
imagealphablending($thumb, false);
imagesavealpha($thumb, true);
break;
default:
return '';
}
imagecopyresampled($thumb, $source, $destX, $destY, $srcX, $srcY, $nwidth, $nheight, $swidth, $sheight);
switch ($type) {
case 1:
imagegif($thumb, $athumb);
break;
case 2:
imagejpeg($thumb, $athumb, $config->get('jpg_quality'));
break;
case 3:
imagepng($thumb, $athumb, $config->get('png_quality'), $config->get('"png_filter"'));
break;
default:
return '';
}
imagedestroy($source);
imagedestroy($thumb);
$handle = @fopen($ini, 'a');
if ($handle !== false) {
$cache = $name . '="' . $rthumb . '"' . PHP_EOL;
@fwrite($handle, $cache);
}
return $rthumb;
}
