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thinkphp
2013-03-13 14:15:52 +08:00
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<?php
// +----------------------------------------------------------------------
// | TOPThink [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2010 http://topthink.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 麦当苗儿 <zuojiazi.cn@gmail.com> <http://www.zjzit.cn>
// +----------------------------------------------------------------------
// | ThinkImage.class.php 2013-03-05
// +----------------------------------------------------------------------
namespace Think;
/* 缩略图相关常量定义 */
define('THINKIMAGE_THUMB_SCALING', 1); //常量,标识缩略图等比例缩放类型
define('THINKIMAGE_THUMB_FILLED', 2); //常量,标识缩略图缩放后填充类型
define('THINKIMAGE_THUMB_CENTER', 3); //常量,标识缩略图居中裁剪类型
define('THINKIMAGE_THUMB_NORTHWEST', 4); //常量,标识缩略图左上角裁剪类型
define('THINKIMAGE_THUMB_SOUTHEAST', 5); //常量,标识缩略图右下角裁剪类型
define('THINKIMAGE_THUMB_FIXED', 6); //常量,标识缩略图固定尺寸缩放类型
/* 水印相关常量定义 */
define('THINKIMAGE_WATER_NORTHWEST', 1); //常量,标识左上角水印
define('THINKIMAGE_WATER_NORTH', 2); //常量,标识上居中水印
define('THINKIMAGE_WATER_NORTHEAST', 3); //常量,标识右上角水印
define('THINKIMAGE_WATER_WEST', 4); //常量,标识左居中水印
define('THINKIMAGE_WATER_CENTER', 5); //常量,标识居中水印
define('THINKIMAGE_WATER_EAST', 6); //常量,标识右居中水印
define('THINKIMAGE_WATER_SOUTHWEST', 7); //常量,标识左下角水印
define('THINKIMAGE_WATER_SOUTH', 8); //常量,标识下居中水印
define('THINKIMAGE_WATER_SOUTHEAST', 9); //常量,标识右下角水印
/**
* 图片处理驱动类,可配置图片处理库
* 目前支持GD库和imagick
* @author 麦当苗儿 <zuojiazi.cn@gmail.com>
*/
class Image {
/**
* 图片资源
* @var resource
*/
private static $im;
/**
* 构造方法,用于实例化一个图片处理对象
* @param string $type 要使用的类库默认使用GD库
*/
public function init($type = 'Gd', $imgname = null){
/* 引入处理库,实例化图片处理对象 */
$class = '\Think\Image\Driver\\'.ucwords($type);
if(class_exists($class)) {
self::$im = new $class($imgname);
return self::$im;
}else{
throw new Exception('不支持的图片处理库类型');
}
}
// 调用驱动类的方法
public static function __callStatic($method, $params){
if(empty(self::$im)) {
self::init();
}
return call_user_func_array(array(self::$im, $method), $params);
}
}