admin/imagecut.php

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<?php
/**
 * 截取图片
 *
 * @version        $Id: imagecut.php 1 11:06 2010年7月13日Z tianya $
 * @package        DedeCMS.Administrator
 * @copyright      Copyright (c) 2007 - 2010, DesDev, Inc.
 * @license        http://help.dedecms.com/usersguide/license.html
 * @link           http://www.dedecms.com
 */
require_once(dirname(__FILE__).'/config.php');
$action = isset($action) ? trim($action) : '';
if(empty($action))
{
    if(!@is_file($cfg_basedir.$file))
    {
        ShowMsg("对不起，必须选择站内的图片才能进行裁剪！<br />点击'<a href='/include/dialog/select_images.php?f=form1.picname&imgstick=small'>站内选择</a>', 上传或选择一个图片，然后才能进行裁剪！", "../include/dialog/select_images.php?f=form1.picname&imgstick=small", 0 , 10000);
        exit();
    }
    include DEDEADMIN.'/templets/imagecut.htm';
    exit();
}
elseif($action == 'cut')
{
    require_once(DEDEINC.'/image.func.php');

    if(!@is_file($cfg_basedir.$file))
    {
        ShowMsg('对不起，请重新选择裁剪图片！', '-1');
        exit();
    }
    if(empty($width))
    {
        ShowMsg('对不起，请选择裁剪图片的尺寸！', '-1');
        exit();
    }
    if(empty($height))
    {
        ShowMsg('对不起，请选择裁剪图片的尺寸！', '-1');
        exit();
    }
    $imginfo = getimagesize($cfg_basedir.$file);
    $imgw = $imginfo[0];
    $imgh = $imginfo[1];
    $temp = 400/$imgw;
    $newwidth = 400;
    $newheight = $imgh * $temp;
    $srcFile = $cfg_basedir.$file;
    $thumb = imagecreatetruecolor($newwidth, $newheight);
    $thumba = imagecreatetruecolor($width, $height);

    switch($imginfo['mime'])
    {
        case 'image/jpeg':
            $source = imagecreatefromjpeg($srcFile);
            break;
        case 'image/gif':
            $source = imagecreatefromgif($srcFile);
            break;
        case 'image/png':