/**
* 生成缩略图
* @param [type] $path [原图路径]
* @param integer $tw [缩略图宽度]
* @param integer $th [缩略图高度]
* @return [image] [缩略图资源]
*/
public static function make($path, $tw = 1, $th = 1)
{
strpos($path, '..') === false or exit('What are you doing?');
$srcPath = iPHP_RES_PAHT . $path;
$thumbPath = $srcPath . '_' . $tw . 'x' . $th . '.jpg';
if (empty($path) || !self::exists($srcPath)) {
return self::blank();
}
iPHP_RES_CACHE && (self::$srcData = self::cache($thumbPath, 'get'));
if (empty(self::$srcData)) {
$gmagick = new Gmagick();
$gmagick->readImage($srcPath);
$scale = array("tw" => $tw, "th" => $th, "w" => $gmagick->getImageWidth(), "h" => $gmagick->getImageHeight());
if ($tw > 0 && $th > 0) {
$im = self::scale($scale);
$gmagick->resizeImage($im['w'], $im['h'], null, 1);
$x = $y = 0;
$im['w'] > $im['tw'] && ($x = ceil(($im['w'] - $im['tw']) / 3));
$im['h'] > $im['th'] && ($y = ceil(($im['h'] - $im['th']) / 3));
$gmagick->cropImage($tw, $th, $x, $y);
} else {
empty($scale['th']) && ($scale['th'] = 9999999);
$im = self::bitScale($scale);
$gmagick->resizeImage($im['w'], $im['h'], null, 1);
}
header('X-Thumb-Cache: MAKE-' . $_SERVER['REQUEST_TIME']);
self::$srcData = $gmagick->current();
iPHP_RES_CACHE && self::cache($thumbPath, self::$srcData);
}
}
