4

+/vendor/
+/thinkphp/
+/composer.lock
+/.idea/

+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - hhvm
+
+matrix:
+    allow_failures:
+        - php: 7.0
+        - php: hhvm
+
+before_script:
+  - composer self-update
+  - composer install --prefer-source --no-interaction --dev
+
+script: phpunit --coverage-clover=coverage.xml --configuration=phpunit.xml
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

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+   limitations under the License.

+# The ThinkPHP5 Image Package
+
+[![Build Status](https://img.shields.io/travis/top-think/think-image.svg)](https://travis-ci.org/top-think/think-image)
+[![Coverage Status](https://img.shields.io/codecov/c/github/top-think/think-image.svg)](https://codecov.io/github/top-think/think-image)
+[![Downloads](https://img.shields.io/github/downloads/top-think/think-image/total.svg)](https://github.com/top-think/think-image/releases)
+[![Releases](https://img.shields.io/github/release/top-think/think-image.svg)](https://github.com/top-think/think-image/releases/latest)
+[![Releases Downloads](https://img.shields.io/github/downloads/top-think/think-image/latest/total.svg)](https://github.com/top-think/think-image/releases/latest)
+[![Packagist Status](https://img.shields.io/packagist/v/top-think/think-image.svg)](https://packagist.org/packages/topthink/think-image)
+[![Packagist Downloads](https://img.shields.io/packagist/dt/top-think/think-image.svg)](https://packagist.org/packages/topthink/think-image)
+
+## 安装
+
+> composer require topthink/think-image
+
+## 使用
+
+~~~
+$image = \think\Image::open('./image.jpg');
+或者
+$image = \think\Image::open(request()->file('image'));
+
+
+$image->crop(...)
+    ->thumb(...)
+    ->water(...)
+    ->text(....)
+    ->save(..);
+
+~~~

+{
+    "name": "topthink/think-image",
+    "description": "The ThinkPHP5 Image Package",
+    "license": "Apache-2.0",
+    "authors": [
+        {
+            "name": "yunwuxin",
+            "email": "448901948@qq.com"
+        }
+    ],
+    "require": {
+        "ext-gd": "*"
+    },
+    "require-dev": {
+        "topthink/framework": "^5.0",
+        "phpunit/phpunit": "4.8.*"
+    },
+    "config": {
+        "preferred-install": "dist"
+    },
+    "autoload": {
+        "psr-4": {
+            "think\\": "src"
+        }
+    }
+}

+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         bootstrap="tests/autoload.php"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false">
+    <testsuites>
+        <testsuite name="Package Test Suite">
+            <directory suffix=".php">./tests/</directory>
+        </testsuite>
+    </testsuites>
+    <listeners>
+        <listener class="JohnKary\PHPUnit\Listener\SpeedTrapListener" />
+    </listeners>
+</phpunit>

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace think;
+
+use think\image\Exception as ImageException;
+use think\image\gif\Gif;
+
+class Image
+{
+
+    /* 缩略图相关常量定义 */
+    const THUMB_SCALING   = 1; //常量，标识缩略图等比例缩放类型
+    const THUMB_FILLED    = 2; //常量，标识缩略图缩放后填充类型
+    const THUMB_CENTER    = 3; //常量，标识缩略图居中裁剪类型
+    const THUMB_NORTHWEST = 4; //常量，标识缩略图左上角裁剪类型
+    const THUMB_SOUTHEAST = 5; //常量，标识缩略图右下角裁剪类型
+    const 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 */
+    const WATER_NORTHWEST = 1; //常量，标识左上角水印
+    const WATER_NORTH     = 2; //常量，标识上居中水印
+    const WATER_NORTHEAST = 3; //常量，标识右上角水印
+    const WATER_WEST      = 4; //常量，标识左居中水印
+    const WATER_CENTER    = 5; //常量，标识居中水印
+    const WATER_EAST      = 6; //常量，标识右居中水印
+    const WATER_SOUTHWEST = 7; //常量，标识左下角水印
+    const WATER_SOUTH     = 8; //常量，标识下居中水印
+    const WATER_SOUTHEAST = 9; //常量，标识右下角水印
+    /* 翻转相关常量定义 */
+    const FLIP_X = 1; //X轴翻转
+    const FLIP_Y = 2; //Y轴翻转
+
+    /**
+     * 图像资源对象
+     *
+     * @var resource
+     */
+    protected $im;
+
+    /** @var  Gif */
+    protected $gif;
+
+    /**
+     * 图像信息，包括 width, height, type, mime, size
+     *
+     * @var array
+     */
+    protected $info;
+
+    protected function __construct(\SplFileInfo $file)
+    {
+        //获取图像信息
+        $info = @getimagesize($file->getPathname());
+
+        //检测图像合法性
+        if (false === $info || (IMAGETYPE_GIF === $info[2] && empty($info['bits']))) {
+            throw new ImageException('Illegal image file');
+        }
+
+        //设置图像信息
+        $this->info = [
+            'width'  => $info[0],
+            'height' => $info[1],
+            'type'   => image_type_to_extension($info[2], false),
+            'mime'   => $info['mime'],
+        ];
+
+        //打开图像
+        if ('gif' == $this->info['type']) {
+            $this->gif = new Gif($file->getPathname());
+            $this->im  = @imagecreatefromstring($this->gif->image());
+        } else {
+            $fun      = "imagecreatefrom{$this->info['type']}";
+            $this->im = @$fun($file->getPathname());
+        }
+
+        if (empty($this->im)) {
+            throw new ImageException('Failed to create image resources!');
+        }
+
+    }
+
+    /**
+     * 打开一个图片文件
+     * @param \SplFileInfo|string $file
+     * @return Image
+     */
+    public static function open($file)
+    {
+        if (is_string($file)) {
+            $file = new \SplFileInfo($file);
+        }
+        if (!$file->isFile()) {
+            throw new ImageException('image file not exist');
+        }
+        return new self($file);
+    }
+
+    /**
+     * 保存图像
+     * @param string      $pathname  图像保存路径名称
+     * @param null|string $type      图像类型
+     * @param int         $quality   图像质量
+     * @param bool        $interlace 是否对JPEG类型图像设置隔行扫描
+     * @return $this
+     */
+    public function save($pathname, $type = null, $quality = 80, $interlace = true)
+    {
+        //自动获取图像类型
+        if (is_null($type)) {
+            $type = $this->info['type'];
+        } else {
+            $type = strtolower($type);
+        }
+        //保存图像
+        if ('jpeg' == $type || 'jpg' == $type) {
+            //JPEG图像设置隔行扫描
+            imageinterlace($this->im, $interlace);
+            imagejpeg($this->im, $pathname, $quality);
+        } elseif ('gif' == $type && !empty($this->gif)) {
+            $this->gif->save($pathname);
+        } elseif ('png' == $type) {
+            //设定保存完整的 alpha 通道信息
+            imagesavealpha($this->im, true);
+            //ImagePNG生成图像的质量范围从0到9的
+            imagepng($this->im, $pathname, min((int) ($quality / 10), 9));
+        } else {
+            $fun = 'image' . $type;
+            $fun($this->im, $pathname);
+        }
+
+        return $this;
+    }
+
+    /**
+     * 返回图像宽度
+     * @return int 图像宽度
+     */
+    public function width()
+    {
+        return $this->info['width'];
+    }
+
+    /**
+     * 返回图像高度
+     * @return int 图像高度
+     */
+    public function height()
+    {
+        return $this->info['height'];
+    }
+
+    /**
+     * 返回图像类型
+     * @return string 图像类型
+     */
+    public function type()
+    {
+        return $this->info['type'];
+    }
+
+    /**
+     * 返回图像MIME类型
+     * @return string 图像MIME类型
+     */
+    public function mime()
+    {
+        return $this->info['mime'];
+    }
+
+    /**
+     * 返回图像尺寸数组 0 - 图像宽度，1 - 图像高度
+     * @return array 图像尺寸
+     */
+    public function size()
+    {
+        return [$this->info['width'], $this->info['height']];
+    }
+
+    /**
+     * 旋转图像
+     * @param int $degrees 顺时针旋转的度数
+     * @return $this
+     */
+    public function rotate($degrees = 90)
+    {
+        do {
+            $img = imagerotate($this->im, -$degrees, imagecolorallocatealpha($this->im, 0, 0, 0, 127));
+            imagedestroy($this->im);
+            $this->im = $img;
+        } while (!empty($this->gif) && $this->gifNext());
+
+        $this->info['width']  = imagesx($this->im);
+        $this->info['height'] = imagesy($this->im);
+
+        return $this;
+    }
+
+    /**
+     * 翻转图像
+     * @param integer $direction 翻转轴,X或者Y
+     * @return $this
+     */
+    public function flip($direction = self::FLIP_X)
+    {
+        //原图宽度和高度
+        $w = $this->info['width'];
+        $h = $this->info['height'];
+
+        do {
+
+            $img = imagecreatetruecolor($w, $h);
+
+            switch ($direction) {
+                case self::FLIP_X:
+                    for ($y = 0; $y < $h; $y++) {
+                        imagecopy($img, $this->im, 0, $h - $y - 1, 0, $y, $w, 1);
+                    }
+                    break;
+                case self::FLIP_Y:
+                    for ($x = 0; $x < $w; $x++) {
+                        imagecopy($img, $this->im, $w - $x - 1, 0, $x, 0, 1, $h);
+                    }
+                    break;
+                default:
+                    throw new ImageException('不支持的翻转类型');
+            }
+
+            imagedestroy($this->im);
+            $this->im = $img;
+
+        } while (!empty($this->gif) && $this->gifNext());
+
+        return $this;
+    }
+
+    /**
+     * 裁剪图像
+     *
+     * @param  integer $w      裁剪区域宽度
+     * @param  integer $h      裁剪区域高度
+     * @param  integer $x      裁剪区域x坐标
+     * @param  integer $y      裁剪区域y坐标
+     * @param  integer $width  图像保存宽度
+     * @param  integer $height 图像保存高度
+     *
+     * @return $this
+     */
+    public function crop($w, $h, $x = 0, $y = 0, $width = null, $height = null)
+    {
+        //设置保存尺寸
+        empty($width) && $width   = $w;
+        empty($height) && $height = $h;
+        do {
+            //创建新图像
+            $img = imagecreatetruecolor($width, $height);
+            // 调整默认颜色
+            $color = imagecolorallocate($img, 255, 255, 255);
+            imagefill($img, 0, 0, $color);
+            //裁剪
+            imagecopyresampled($img, $this->im, 0, 0, $x, $y, $width, $height, $w, $h);
+            imagedestroy($this->im); //销毁原图
+            //设置新图像
+            $this->im = $img;
+        } while (!empty($this->gif) && $this->gifNext());
+        $this->info['width']  = (int) $width;
+        $this->info['height'] = (int) $height;
+        return $this;
+    }
+
+    /**
+     * 生成缩略图
+     *
+     * @param  integer $width  缩略图最大宽度
+     * @param  integer $height 缩略图最大高度
+     * @param int      $type   缩略图裁剪类型
+     *
+     * @return $this
+     */
+    public function thumb($width, $height, $type = self::THUMB_SCALING)
+    {
+        //原图宽度和高度
+        $w = $this->info['width'];
+        $h = $this->info['height'];
+        /* 计算缩略图生成的必要参数 */
+        switch ($type) {
+            /* 等比例缩放 */
+            case self::THUMB_SCALING:
+                //原图尺寸小于缩略图尺寸则不进行缩略
+                if ($w < $width && $h < $height) {
+                    return $this;
+                }
+                //计算缩放比例
+                $scale = min($width / $w, $height / $h);
+                //设置缩略图的坐标及宽度和高度
+                $x      = $y      = 0;
+                $width  = $w * $scale;
+                $height = $h * $scale;
+                break;
+            /* 居中裁剪 */
+            case self::THUMB_CENTER:
+                //计算缩放比例
+                $scale = max($width / $w, $height / $h);
+                //设置缩略图的坐标及宽度和高度
+                $w = $width / $scale;
+                $h = $height / $scale;
+                $x = ($this->info['width'] - $w) / 2;
+                $y = ($this->info['height'] - $h) / 2;
+                break;
+            /* 左上角裁剪 */
+            case self::THUMB_NORTHWEST:
+                //计算缩放比例
+                $scale = max($width / $w, $height / $h);
+                //设置缩略图的坐标及宽度和高度
+                $x = $y = 0;
+                $w = $width / $scale;
+                $h = $height / $scale;
+                break;
+            /* 右下角裁剪 */
+            case self::THUMB_SOUTHEAST:
+                //计算缩放比例
+                $scale = max($width / $w, $height / $h);
+                //设置缩略图的坐标及宽度和高度
+                $w = $width / $scale;
+                $h = $height / $scale;
+                $x = $this->info['width'] - $w;
+                $y = $this->info['height'] - $h;
+                break;
+            /* 填充 */
+            case self::THUMB_FILLED:
+                //计算缩放比例
+                if ($w < $width && $h < $height) {
+                    $scale = 1;
+                } else {
+                    $scale = min($width / $w, $height / $h);
+                }
+                //设置缩略图的坐标及宽度和高度
+                $neww = $w * $scale;
+                $newh = $h * $scale;
+                $x    = $this->info['width'] - $w;
+                $y    = $this->info['height'] - $h;
+                $posx = ($width - $w * $scale) / 2;
+                $posy = ($height - $h * $scale) / 2;
+                do {
+                    //创建新图像
+                    $img = imagecreatetruecolor($width, $height);
+                    // 调整默认颜色
+                    $color = imagecolorallocate($img, 255, 255, 255);
+                    imagefill($img, 0, 0, $color);
+                    //裁剪
+                    imagecopyresampled($img, $this->im, $posx, $posy, $x, $y, $neww, $newh, $w, $h);
+                    imagedestroy($this->im); //销毁原图
+                    $this->im = $img;
+                } while (!empty($this->gif) && $this->gifNext());
+                $this->info['width']  = (int) $width;
+                $this->info['height'] = (int) $height;
+                return $this;
+            /* 固定 */
+            case self::THUMB_FIXED:
+                $x = $y = 0;
+                break;
+            default:
+                throw new ImageException('不支持的缩略图裁剪类型');
+        }
+        /* 裁剪图像 */
+        return $this->crop($w, $h, $x, $y, $width, $height);
+    }
+
+    /**
+     * 添加水印
+     *
+     * @param  string $source 水印图片路径
+     * @param int     $locate 水印位置
+     * @param int     $alpha  透明度
+     * @return $this
+     */
+    public function water($source, $locate = self::WATER_SOUTHEAST, $alpha = 100)
+    {
+        if (!is_file($source)) {
+            throw new ImageException('水印图像不存在');
+        }
+        //获取水印图像信息
+        $info = getimagesize($source);
+        if (false === $info || (IMAGETYPE_GIF === $info[2] && empty($info['bits']))) {
+            throw new ImageException('非法水印文件');
+        }
+        //创建水印图像资源
+        $fun   = 'imagecreatefrom' . image_type_to_extension($info[2], false);
+        $water = $fun($source);
+        //设定水印图像的混色模式
+        imagealphablending($water, true);
+        /* 设定水印位置 */
+        switch ($locate) {
+            /* 右下角水印 */
+            case self::WATER_SOUTHEAST:
+                $x = $this->info['width'] - $info[0];
+                $y = $this->info['height'] - $info[1];
+                break;
+            /* 左下角水印 */
+            case self::WATER_SOUTHWEST:
+                $x = 0;
+                $y = $this->info['height'] - $info[1];
+                break;
+            /* 左上角水印 */
+            case self::WATER_NORTHWEST:
+                $x = $y = 0;
+                break;
+            /* 右上角水印 */
+            case self::WATER_NORTHEAST:
+                $x = $this->info['width'] - $info[0];
+                $y = 0;
+                break;
+            /* 居中水印 */
+            case self::WATER_CENTER:
+                $x = ($this->info['width'] - $info[0]) / 2;
+                $y = ($this->info['height'] - $info[1]) / 2;
+                break;
+            /* 下居中水印 */
+            case self::WATER_SOUTH:
+                $x = ($this->info['width'] - $info[0]) / 2;
+                $y = $this->info['height'] - $info[1];
+                break;
+            /* 右居中水印 */
+            case self::WATER_EAST:
+                $x = $this->info['width'] - $info[0];
+                $y = ($this->info['height'] - $info[1]) / 2;
+                break;
+            /* 上居中水印 */
+            case self::WATER_NORTH:
+                $x = ($this->info['width'] - $info[0]) / 2;
+                $y = 0;
+                break;
+            /* 左居中水印 */
+            case self::WATER_WEST:
+                $x = 0;
+                $y = ($this->info['height'] - $info[1]) / 2;
+                break;
+            default:
+                /* 自定义水印坐标 */
+                if (is_array($locate)) {
+                    list($x, $y) = $locate;
+                } else {
+                    throw new ImageException('不支持的水印位置类型');
+                }
+        }
+        do {
+            //添加水印
+            $src = imagecreatetruecolor($info[0], $info[1]);
+            // 调整默认颜色
+            $color = imagecolorallocate($src, 255, 255, 255);
+            imagefill($src, 0, 0, $color);
+            imagecopy($src, $this->im, 0, 0, $x, $y, $info[0], $info[1]);
+            imagecopy($src, $water, 0, 0, 0, 0, $info[0], $info[1]);
+            imagecopymerge($this->im, $src, $x, $y, 0, 0, $info[0], $info[1], $alpha);
+            //销毁零时图片资源
+            imagedestroy($src);
+        } while (!empty($this->gif) && $this->gifNext());
+        //销毁水印资源
+        imagedestroy($water);
+        return $this;
+    }
+
+    /**
+     * 图像添加文字
+     *
+     * @param  string  $text   添加的文字
+     * @param  string  $font   字体路径
+     * @param  integer $size   字号
+     * @param  string  $color  文字颜色
+     * @param int      $locate 文字写入位置
+     * @param  integer $offset 文字相对当前位置的偏移量
+     * @param  integer $angle  文字倾斜角度
+     *
+     * @return $this
+     * @throws ImageException
+     */
+    public function text($text, $font, $size, $color = '#00000000',
+        $locate = self::WATER_SOUTHEAST, $offset = 0, $angle = 0) {
+
+        if (!is_file($font)) {
+            throw new ImageException("不存在的字体文件：{$font}");
+        }
+        //获取文字信息
+        $info = imagettfbbox($size, $angle, $font, $text);
+        $minx = min($info[0], $info[2], $info[4], $info[6]);
+        $maxx = max($info[0], $info[2], $info[4], $info[6]);
+        $miny = min($info[1], $info[3], $info[5], $info[7]);
+        $maxy = max($info[1], $info[3], $info[5], $info[7]);
+        /* 计算文字初始坐标和尺寸 */
+        $x = $minx;
+        $y = abs($miny);
+        $w = $maxx - $minx;
+        $h = $maxy - $miny;
+        /* 设定文字位置 */
+        switch ($locate) {
+            /* 右下角文字 */
+            case self::WATER_SOUTHEAST:
+                $x += $this->info['width'] - $w;
+                $y += $this->info['height'] - $h;
+                break;
+            /* 左下角文字 */
+            case self::WATER_SOUTHWEST:
+                $y += $this->info['height'] - $h;
+                break;
+            /* 左上角文字 */
+            case self::WATER_NORTHWEST:
+                // 起始坐标即为左上角坐标，无需调整
+                break;
+            /* 右上角文字 */
+            case self::WATER_NORTHEAST:
+                $x += $this->info['width'] - $w;
+                break;
+            /* 居中文字 */
+            case self::WATER_CENTER:
+                $x += ($this->info['width'] - $w) / 2;
+                $y += ($this->info['height'] - $h) / 2;
+                break;
+            /* 下居中文字 */
+            case self::WATER_SOUTH:
+                $x += ($this->info['width'] - $w) / 2;
+                $y += $this->info['height'] - $h;
+                break;
+            /* 右居中文字 */
+            case self::WATER_EAST:
+                $x += $this->info['width'] - $w;
+                $y += ($this->info['height'] - $h) / 2;
+                break;
+            /* 上居中文字 */
+            case self::WATER_NORTH:
+                $x += ($this->info['width'] - $w) / 2;
+                break;
+            /* 左居中文字 */
+            case self::WATER_WEST:
+                $y += ($this->info['height'] - $h) / 2;
+                break;
+            default:
+                /* 自定义文字坐标 */
+                if (is_array($locate)) {
+                    list($posx, $posy) = $locate;
+                    $x += $posx;
+                    $y += $posy;
+                } else {
+                    throw new ImageException('不支持的文字位置类型');
+                }
+        }
+        /* 设置偏移量 */
+        if (is_array($offset)) {
+            $offset        = array_map('intval', $offset);
+            list($ox, $oy) = $offset;
+        } else {
+            $offset = intval($offset);
+            $ox     = $oy     = $offset;
+        }
+        /* 设置颜色 */
+        if (is_string($color) && 0 === strpos($color, '#')) {
+            $color = str_split(substr($color, 1), 2);
+            $color = array_map('hexdec', $color);
+            if (empty($color[3]) || $color[3] > 127) {
+                $color[3] = 0;
+            }
+        } elseif (!is_array($color)) {
+            throw new ImageException('错误的颜色值');
+        }
+        do {
+            /* 写入文字 */
+            $col = imagecolorallocatealpha($this->im, $color[0], $color[1], $color[2], $color[3]);
+            imagettftext($this->im, $size, $angle, $x + $ox, $y + $oy, $col, $font, $text);
+        } while (!empty($this->gif) && $this->gifNext());
+        return $this;
+    }
+
+    /**
+     * 切换到GIF的下一帧并保存当前帧
+     */
+    protected function gifNext()
+    {
+        ob_start();
+        ob_implicit_flush(0);
+        imagegif($this->im);
+        $img = ob_get_clean();
+        $this->gif->image($img);
+        $next = $this->gif->nextImage();
+        if ($next) {
+            imagedestroy($this->im);
+            $this->im = imagecreatefromstring($next);
+            return $next;
+        } else {
+            imagedestroy($this->im);
+            $this->im = imagecreatefromstring($this->gif->image());
+            return false;
+        }
+    }
+
+    /**
+     * 析构方法，用于销毁图像资源
+     */
+    public function __destruct()
+    {
+        empty($this->im) || imagedestroy($this->im);
+    }
+
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace think\image;
+
+
+class Exception extends \RuntimeException
+{
+
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace think\image\gif;
+
+
+class Decoder
+{
+    public $GIF_buffer = [];
+    public $GIF_arrays = [];
+    public $GIF_delays = [];
+    public $GIF_stream = "";
+    public $GIF_string = "";
+    public $GIF_bfseek = 0;
+    public $GIF_screen = [];
+    public $GIF_global = [];
+    public $GIF_sorted;
+    public $GIF_colorS;
+    public $GIF_colorC;
+    public $GIF_colorF;
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFDecoder ( $GIF_pointer )
+    ::
+     */
+    public function __construct($GIF_pointer)
+    {
+        $this->GIF_stream = $GIF_pointer;
+        $this->getByte(6); // GIF89a
+        $this->getByte(7); // Logical Screen Descriptor
+        $this->GIF_screen = $this->GIF_buffer;
+        $this->GIF_colorF = $this->GIF_buffer[4] & 0x80 ? 1 : 0;
+        $this->GIF_sorted = $this->GIF_buffer[4] & 0x08 ? 1 : 0;
+        $this->GIF_colorC = $this->GIF_buffer[4] & 0x07;
+        $this->GIF_colorS = 2 << $this->GIF_colorC;
+        if (1 == $this->GIF_colorF) {
+            $this->getByte(3 * $this->GIF_colorS);
+            $this->GIF_global = $this->GIF_buffer;
+        }
+
+        for ($cycle = 1; $cycle;) {
+            if ($this->getByte(1)) {
+                switch ($this->GIF_buffer[0]) {
+                    case 0x21:
+                        $this->readExtensions();
+                        break;
+                    case 0x2C:
+                        $this->readDescriptor();
+                        break;
+                    case 0x3B:
+                        $cycle = 0;
+                        break;
+                }
+            } else {
+                $cycle = 0;
+            }
+        }
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFReadExtension ( )
+    ::
+     */
+    public function readExtensions()
+    {
+        $this->getByte(1);
+        for (; ;) {
+            $this->getByte(1);
+            if (($u = $this->GIF_buffer[0]) == 0x00) {
+                break;
+            }
+            $this->getByte($u);
+            /*
+             * 07.05.2007.
+             * Implemented a new line for a new function
+             * to determine the originaly delays between
+             * frames.
+             *
+             */
+            if (4 == $u) {
+                $this->GIF_delays[] = ($this->GIF_buffer[1] | $this->GIF_buffer[2] << 8);
+            }
+        }
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFReadExtension ( )
+    ::
+     */
+    public function readDescriptor()
+    {
+        $this->getByte(9);
+        $GIF_screen = $this->GIF_buffer;
+        $GIF_colorF = $this->GIF_buffer[8] & 0x80 ? 1 : 0;
+        if ($GIF_colorF) {
+            $GIF_code = $this->GIF_buffer[8] & 0x07;
+            $GIF_sort = $this->GIF_buffer[8] & 0x20 ? 1 : 0;
+        } else {
+            $GIF_code = $this->GIF_colorC;
+            $GIF_sort = $this->GIF_sorted;
+        }
+        $GIF_size = 2 << $GIF_code;
+        $this->GIF_screen[4] &= 0x70;
+        $this->GIF_screen[4] |= 0x80;
+        $this->GIF_screen[4] |= $GIF_code;
+        if ($GIF_sort) {
+            $this->GIF_screen[4] |= 0x08;
+        }
+        $this->GIF_string = "GIF87a";
+        $this->putByte($this->GIF_screen);
+        if (1 == $GIF_colorF) {
+            $this->getByte(3 * $GIF_size);
+            $this->putByte($this->GIF_buffer);
+        } else {
+            $this->putByte($this->GIF_global);
+        }
+        $this->GIF_string .= chr(0x2C);
+        $GIF_screen[8] &= 0x40;
+        $this->putByte($GIF_screen);
+        $this->getByte(1);
+        $this->putByte($this->GIF_buffer);
+        for (; ;) {
+            $this->getByte(1);
+            $this->putByte($this->GIF_buffer);
+            if (($u = $this->GIF_buffer[0]) == 0x00) {
+                break;
+            }
+            $this->getByte($u);
+            $this->putByte($this->GIF_buffer);
+        }
+        $this->GIF_string .= chr(0x3B);
+        /*
+        Add frames into $GIF_stream array...
+         */
+        $this->GIF_arrays[] = $this->GIF_string;
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFGetByte ( $len )
+    ::
+    */
+    public function getByte($len)
+    {
+        $this->GIF_buffer = [];
+        for ($i = 0; $i < $len; $i++) {
+            if ($this->GIF_bfseek > strlen($this->GIF_stream)) {
+                return 0;
+            }
+            $this->GIF_buffer[] = ord($this->GIF_stream{$this->GIF_bfseek++});
+        }
+        return 1;
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFPutByte ( $bytes )
+    ::
+     */
+    public function putByte($bytes)
+    {
+        for ($i = 0; $i < count($bytes); $i++) {
+            $this->GIF_string .= chr($bytes[$i]);
+        }
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    PUBLIC FUNCTIONS
+    ::
+    ::
+    ::    GIFGetFrames ( )
+    ::
+     */
+    public function getFrames()
+    {
+        return ($this->GIF_arrays);
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFGetDelays ( )
+    ::
+     */
+    public function getDelays()
+    {
+        return ($this->GIF_delays);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace think\image\gif;
+
+class Encoder
+{
+    public $GIF = "GIF89a"; /* GIF header 6 bytes    */
+    public $VER = "GIFEncoder V2.05"; /* Encoder version        */
+    public $BUF = [];
+    public $LOP = 0;
+    public $DIS = 2;
+    public $COL = -1;
+    public $IMG = -1;
+    public $ERR = [
+        'ERR00' => "Does not supported function for only one image!",
+        'ERR01' => "Source is not a GIF image!",
+        'ERR02' => "Unintelligible flag ",
+        'ERR03' => "Does not make animation from animated GIF source",
+    ];
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFEncoder...
+    ::
+     */
+    public function __construct(
+        $GIF_src, $GIF_dly, $GIF_lop, $GIF_dis,
+        $GIF_red, $GIF_grn, $GIF_blu, $GIF_mod
+    )
+    {
+        if (!is_array($GIF_src)) {
+            printf("%s: %s", $this->VER, $this->ERR['ERR00']);
+            exit(0);
+        }
+        $this->LOP = ($GIF_lop > -1) ? $GIF_lop : 0;
+        $this->DIS = ($GIF_dis > -1) ? (($GIF_dis < 3) ? $GIF_dis : 3) : 2;
+        $this->COL = ($GIF_red > -1 && $GIF_grn > -1 && $GIF_blu > -1) ?
+            ($GIF_red | ($GIF_grn << 8) | ($GIF_blu << 16)) : -1;
+        for ($i = 0; $i < count($GIF_src); $i++) {
+            if (strtolower($GIF_mod) == "url") {
+                $this->BUF[] = fread(fopen($GIF_src[$i], "rb"), filesize($GIF_src[$i]));
+            } else if (strtolower($GIF_mod) == "bin") {
+                $this->BUF[] = $GIF_src[$i];
+            } else {
+                printf("%s: %s ( %s )!", $this->VER, $this->ERR['ERR02'], $GIF_mod);
+                exit(0);
+            }
+            if (substr($this->BUF[$i], 0, 6) != "GIF87a" && substr($this->BUF[$i], 0, 6) != "GIF89a") {
+                printf("%s: %d %s", $this->VER, $i, $this->ERR['ERR01']);
+                exit(0);
+            }
+            for ($j = (13 + 3 * (2 << (ord($this->BUF[$i]{10}) & 0x07))), $k = true; $k; $j++) {
+                switch ($this->BUF[$i]{$j}) {
+                    case "!":
+                        if ((substr($this->BUF[$i], ($j + 3), 8)) == "NETSCAPE") {
+                            printf("%s: %s ( %s source )!", $this->VER, $this->ERR['ERR03'], ($i + 1));
+                            exit(0);
+                        }
+                        break;
+                    case ";":
+                        $k = false;
+                        break;
+                }
+            }
+        }
+        $this->addHeader();
+        for ($i = 0; $i < count($this->BUF); $i++) {
+            $this->addFrames($i, $GIF_dly[$i]);
+        }
+        $this->addFooter();
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFAddHeader...
+    ::
+     */
+    public function addHeader()
+    {
+        if (ord($this->BUF[0]{10}) & 0x80) {
+            $cmap = 3 * (2 << (ord($this->BUF[0]{10}) & 0x07));
+            $this->GIF .= substr($this->BUF[0], 6, 7);
+            $this->GIF .= substr($this->BUF[0], 13, $cmap);
+            $this->GIF .= "!\377\13NETSCAPE2.0\3\1" . $this->word($this->LOP) . "\0";
+        }
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFAddFrames...
+    ::
+     */
+    public function addFrames($i, $d)
+    {
+        $Locals_img = '';
+        $Locals_str = 13 + 3 * (2 << (ord($this->BUF[$i]{10}) & 0x07));
+        $Locals_end = strlen($this->BUF[$i]) - $Locals_str - 1;
+        $Locals_tmp = substr($this->BUF[$i], $Locals_str, $Locals_end);
+        $Global_len = 2 << (ord($this->BUF[0]{10}) & 0x07);
+        $Locals_len = 2 << (ord($this->BUF[$i]{10}) & 0x07);
+        $Global_rgb = substr($this->BUF[0], 13,
+            3 * (2 << (ord($this->BUF[0]{10}) & 0x07)));
+        $Locals_rgb = substr($this->BUF[$i], 13,
+            3 * (2 << (ord($this->BUF[$i]{10}) & 0x07)));
+        $Locals_ext = "!\xF9\x04" . chr(($this->DIS << 2) + 0) .
+            chr(($d >> 0) & 0xFF) . chr(($d >> 8) & 0xFF) . "\x0\x0";
+        if ($this->COL > -1 && ord($this->BUF[$i]{10}) & 0x80) {
+            for ($j = 0; $j < (2 << (ord($this->BUF[$i]{10}) & 0x07)); $j++) {
+                if (
+                    ord($Locals_rgb{3 * $j + 0}) == (($this->COL >> 16) & 0xFF) &&
+                    ord($Locals_rgb{3 * $j + 1}) == (($this->COL >> 8) & 0xFF) &&
+                    ord($Locals_rgb{3 * $j + 2}) == (($this->COL >> 0) & 0xFF)
+                ) {
+                    $Locals_ext = "!\xF9\x04" . chr(($this->DIS << 2) + 1) .
+                        chr(($d >> 0) & 0xFF) . chr(($d >> 8) & 0xFF) . chr($j) . "\x0";
+                    break;
+                }
+            }
+        }
+        switch ($Locals_tmp{0}) {
+            case "!":
+                /**
+                 * @var string $Locals_img ;
+                 */
+                $Locals_img = substr($Locals_tmp, 8, 10);
+                $Locals_tmp = substr($Locals_tmp, 18, strlen($Locals_tmp) - 18);
+                break;
+            case ",":
+                $Locals_img = substr($Locals_tmp, 0, 10);
+                $Locals_tmp = substr($Locals_tmp, 10, strlen($Locals_tmp) - 10);
+                break;
+        }
+        if (ord($this->BUF[$i]{10}) & 0x80 && $this->IMG > -1) {
+            if ($Global_len == $Locals_len) {
+                if ($this->blockCompare($Global_rgb, $Locals_rgb, $Global_len)) {
+                    $this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
+                } else {
+                    $byte = ord($Locals_img{9});
+                    $byte |= 0x80;
+                    $byte &= 0xF8;
+                    $byte |= (ord($this->BUF[0]{10}) & 0x07);
+                    $Locals_img{9} = chr($byte);
+                    $this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
+                }
+            } else {
+                $byte = ord($Locals_img{9});
+                $byte |= 0x80;
+                $byte &= 0xF8;
+                $byte |= (ord($this->BUF[$i]{10}) & 0x07);
+                $Locals_img{9} = chr($byte);
+                $this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
+            }
+        } else {
+            $this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
+        }
+        $this->IMG = 1;
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFAddFooter...
+    ::
+     */
+    public function addFooter()
+    {
+        $this->GIF .= ";";
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFBlockCompare...
+    ::
+     */
+    public function blockCompare($GlobalBlock, $LocalBlock, $Len)
+    {
+        for ($i = 0; $i < $Len; $i++) {
+            if (
+                $GlobalBlock{3 * $i + 0} != $LocalBlock{3 * $i + 0} ||
+                $GlobalBlock{3 * $i + 1} != $LocalBlock{3 * $i + 1} ||
+                $GlobalBlock{3 * $i + 2} != $LocalBlock{3 * $i + 2}
+            ) {
+                return (0);
+            }
+        }
+        return (1);
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GIFWord...
+    ::
+     */
+    public function word($int)
+    {
+        return (chr($int & 0xFF) . chr(($int >> 8) & 0xFF));
+    }
+
+    /*
+    :::::::::::::::::::::::::::::::::::::::::::::::::::
+    ::
+    ::    GetAnimation...
+    ::
+     */
+    public function getAnimation()
+    {
+        return ($this->GIF);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace think\image\gif;
+
+class Gif
+{
+    /**
+     * GIF帧列表
+     *
+     * @var array
+     */
+    private $frames = [];
+    /**
+     * 每帧等待时间列表
+     *
+     * @var array
+     */
+    private $delays = [];
+
+    /**
+     * 构造方法，用于解码GIF图片
+     *
+     * @param string $src GIF图片数据
+     * @param string $mod 图片数据类型
+     * @throws \Exception
+     */
+    public function __construct($src = null, $mod = 'url')
+    {
+        if (!is_null($src)) {
+            if ('url' == $mod && is_file($src)) {
+                $src = file_get_contents($src);
+            }
+            /* 解码GIF图片 */
+            try {
+                $de           = new Decoder($src);
+                $this->frames = $de->getFrames();
+                $this->delays = $de->getDelays();
+            } catch (\Exception $e) {
+                throw new \Exception("解码GIF图片出错");
+            }
+        }
+    }
+
+    /**
+     * 设置或获取当前帧的数据
+     *
+     * @param  string $stream 二进制数据流
+     * @return mixed        获取到的数据
+     */
+    public function image($stream = null)
+    {
+        if (is_null($stream)) {
+            $current = current($this->frames);
+            return false === $current ? reset($this->frames) : $current;
+        }
+        $this->frames[key($this->frames)] = $stream;
+    }
+
+    /**
+     * 将当前帧移动到下一帧
+     *
+     * @return string 当前帧数据
+     */
+    public function nextImage()
+    {
+        return next($this->frames);
+    }
+
+    /**
+     * 编码并保存当前GIF图片
+     *
+     * @param  string $pathname 图片名称
+     */
+    public function save($pathname)
+    {
+        $gif = new Encoder($this->frames, $this->delays, 0, 2, 0, 0, 0, 'bin');
+        file_put_contents($pathname, $gif->getAnimation());
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class CropTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/crop.jpg';
+        $image    = Image::open($this->getJpeg());
+
+        $image->crop(200, 200, 100, 100, 300, 300)->save($pathname);
+
+        $this->assertEquals(300, $image->width());
+        $this->assertEquals(300, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testPng()
+    {
+        $pathname = TEST_PATH . 'tmp/crop.png';
+        $image    = Image::open($this->getPng());
+
+        $image->crop(200, 200, 100, 100, 300, 300)->save($pathname);
+
+        $this->assertEquals(300, $image->width());
+        $this->assertEquals(300, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/crop.gif';
+        $image    = Image::open($this->getGif());
+
+        $image->crop(200, 200, 100, 100, 300, 300)->save($pathname);
+
+        $this->assertEquals(300, $image->width());
+        $this->assertEquals(300, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class FlipTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/flip.jpg';
+        $image    = Image::open($this->getJpeg());
+        $image->flip()->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/flip.gif';
+        $image    = Image::open($this->getGif());
+        $image->flip(Image::FLIP_Y)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class InfoTest extends TestCase
+{
+
+    public function testOpen()
+    {
+        $this->setExpectedException("\\think\\image\\Exception");
+        Image::open('');
+    }
+
+    public function testIllegal()
+    {
+        $this->setExpectedException("\\think\\image\\Exception", 'Illegal image file');
+        Image::open(TEST_PATH . 'images/test.bmp');
+    }
+
+    public function testJpeg()
+    {
+        $image = Image::open($this->getJpeg());
+        $this->assertEquals(800, $image->width());
+        $this->assertEquals(600, $image->height());
+        $this->assertEquals('jpeg', $image->type());
+        $this->assertEquals('image/jpeg', $image->mime());
+        $this->assertEquals([800, 600], $image->size());
+    }
+
+
+    public function testPng()
+    {
+        $image = Image::open($this->getPng());
+        $this->assertEquals(800, $image->width());
+        $this->assertEquals(600, $image->height());
+        $this->assertEquals('png', $image->type());
+        $this->assertEquals('image/png', $image->mime());
+        $this->assertEquals([800, 600], $image->size());
+    }
+
+    public function testGif()
+    {
+        $image = Image::open($this->getGif());
+        $this->assertEquals(380, $image->width());
+        $this->assertEquals(216, $image->height());
+        $this->assertEquals('gif', $image->type());
+        $this->assertEquals('image/gif', $image->mime());
+        $this->assertEquals([380, 216], $image->size());
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class RotateTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/rotate.jpg';
+        $image    = Image::open($this->getJpeg());
+        $image->rotate(90)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/rotate.gif';
+        $image    = Image::open($this->getGif());
+        $image->rotate(90)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace tests;
+
+use think\File;
+
+abstract class TestCase extends \PHPUnit_Framework_TestCase
+{
+
+    protected function getJpeg()
+    {
+        return new File(TEST_PATH . 'images/test.jpg');
+    }
+
+    protected function getPng()
+    {
+        return new File(TEST_PATH . 'images/test.png');
+    }
+
+    protected function getGif()
+    {
+        return new File(TEST_PATH . 'images/test.gif');
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class TextTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/text.jpg';
+        $image    = Image::open($this->getJpeg());
+
+        $image->text('test', TEST_PATH . 'images/test.ttf', 12)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testPng()
+    {
+        $pathname = TEST_PATH . 'tmp/text.png';
+        $image    = Image::open($this->getPng());
+
+        $image->text('test', TEST_PATH . 'images/test.ttf', 12)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/text.gif';
+        $image    = Image::open($this->getGif());
+
+        $image->text('test', TEST_PATH . 'images/test.ttf', 12)->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class ThumbTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/thumb.jpg';
+        
+        //1
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_CENTER)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //2
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_SCALING)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(150, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //3
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_FILLED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //4
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_NORTHWEST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //5
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_SOUTHEAST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //6
+        $image    = Image::open($this->getJpeg());
+
+        $image->thumb(200, 200, Image::THUMB_FIXED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+
+    public function testPng()
+    {
+        $pathname = TEST_PATH . 'tmp/thumb.png';
+
+        //1
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_CENTER)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //2
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_SCALING)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(150, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //3
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_FILLED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //4
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_NORTHWEST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //5
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_SOUTHEAST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //6
+        $image    = Image::open($this->getPng());
+
+        $image->thumb(200, 200, Image::THUMB_FIXED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/thumb.gif';
+
+        //1
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_CENTER)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //2
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_SCALING)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(113, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //3
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_FILLED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //4
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_NORTHWEST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //5
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_SOUTHEAST)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+
+        //6
+        $image    = Image::open($this->getGif());
+
+        $image->thumb(200, 200, Image::THUMB_FIXED)->save($pathname);
+
+        $this->assertEquals(200, $image->width());
+        $this->assertEquals(200, $image->height());
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+namespace tests;
+
+use think\Image;
+
+class WaterTest extends TestCase
+{
+    public function testJpeg()
+    {
+        $pathname = TEST_PATH . 'tmp/water.jpg';
+        $image    = Image::open($this->getJpeg());
+
+        $image->water(TEST_PATH . 'images/test.gif')->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testPng()
+    {
+        $pathname = TEST_PATH . 'tmp/water.png';
+        $image    = Image::open($this->getPng());
+
+        $image->water(TEST_PATH . 'images/test.gif')->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+
+    public function testGif()
+    {
+        $pathname = TEST_PATH . 'tmp/water.gif';
+        $image    = Image::open($this->getGif());
+
+        $image->water(TEST_PATH . 'images/test.jpg')->save($pathname);
+
+        $file = new \SplFileInfo($pathname);
+
+        $this->assertTrue($file->isFile());
+
+        @unlink($pathname);
+    }
+}

+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2015 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+define('TEST_PATH', __DIR__ . '/');
+// 加载框架基础文件
+require __DIR__ . '/../thinkphp/base.php';
+\think\Loader::addNamespace('tests', TEST_PATH);
+\think\Loader::addNamespace('think', __DIR__ . '/../src/');

+*
+!.gitignore