PHP多功能图片处理类

2024-09-04 11:43:57

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setSrcImg("img/test.jpg");

    $t->setCutType(1);//这一句就OK了

    $t->setDstImg("tmp/new_test.jpg");

    $t->createImg(60,60);



    手工裁切:

    程序会按照指定的位置从源图上取图



    $t->setSrcImg("img/test.jpg");

    $t->setCutType(2);//指明为手工裁切

    $t->setSrcCutPosition(100, 100);// 源图起点坐标

    $t->setRectangleCut(300, 200);// 裁切尺寸

    $t->setDstImg("tmp/new_test.jpg");

    $t->createImg(300,200);

*/

class ThumbHandler

{

    var $dst_img;// 目标文件

    var $h_src; // 图片资源句柄

    var $h_dst;// 新图句柄

    var $h_mask;// 水印句柄

    var $img_create_quality = 100;// 图片生成质量

    var $img_display_quality = 80;// 图片显示质量,默认为75

    var $img_scale = 0;// 图片缩放比例

    var $src_w = 0;// 原图宽度

    var $src_h = 0;// 原图高度

    var $dst_w = 0;// 新图总宽度

    var $dst_h = 0;// 新图总高度

    var $fill_w;// 填充图形宽

    var $fill_h;// 填充图形高

    var $copy_w;// 拷贝图形宽

    var $copy_h;// 拷贝图形高

    var $src_x = 0;// 原图绘制起始横坐标

    var $src_y = 0;// 原图绘制起始纵坐标

    var $start_x;// 新图绘制起始横坐标

    var $start_y;// 新图绘制起始纵坐标

    var $mask_word;// 水印文字

    var $mask_img;// 水印图片

    var $mask_pos_x = 0;// 水印横坐标

    var $mask_pos_y = 0;// 水印纵坐标

    var $mask_offset_x = 5;// 水印横向偏移

    var $mask_offset_y = 5;// 水印纵向偏移

    var $font_w;// 水印字体宽

    var $font_h;// 水印字体高

    var $mask_w;// 水印宽

    var $mask_h;// 水印高

    var $mask_font_color = "#ffffff";// 水印文字颜色

    var $mask_font = 2;// 水印字体

    var $font_size;// 尺寸

    var $mask_position = 0;// 水印位置

    var $mask_img_pct = 50;// 图片合并程度,值越大，合并程序越低

    var $mask_txt_pct = 50;// 文字合并程度,值越小，合并程序越低

    var $img_border_size = 0;// 图片边框尺寸

    var $img_border_color;// 图片边框颜色

    var $_flip_x=0;// 水平翻转次数

    var $_flip_y=0;// 垂直翻转次数



    var $cut_type=0;// 剪切类型





    var $img_type;// 文件类型



    // 文件类型定义,并指出了输出图片的函数

    var $all_type = array(

        "jpg"  => array("output"=>"imagejpeg"),

        "gif"  => array("output"=>"imagegif"),

        "png"  => array("output"=>"imagepng"),

        "wbmp" => array("output"=>"image2wbmp"),

        "jpeg" => array("output"=>"imagejpeg"));



    /**

     * 构造函数

     */

    function ThumbHandler()

    {

        $this->mask_font_color = "#ffffff";

        $this->font = 2;

        $this->font_size = 12;

    }



    /**

     * 取得图片的宽

     */

    function getImgWidth($src)

    {

        return imagesx($src);

    }



    /**

     * 取得图片的高

     */

    function getImgHeight($src)

    {

        return imagesy($src);

    }



    /**

     * 设置图片生成路径

     *

     * @param    string    $src_img   图片生成路径

     */

    function setSrcImg($src_img, $img_type=null)

    {

        if(!file_exists($src_img))

        {

            die("图片不存在");

        }



        if(!emptyempty($img_type))

        {

            $this->img_type = $img_type;

        }

        else

        {

            $this->img_type = $this->_getImgType($src_img);

        }



        $this->_checkValid($this->img_type);



        // file_get_contents函数要求php版本>4.3.0

        $src = '';

        if(function_exists("file_get_contents"))

        {

            $src = file_get_contents($src_img);

        }

        else

        {

            $handle = fopen ($src_img, "r");

            while (!feof ($handle))

            {

                $src .= fgets($fd, 4096);

            }

            fclose ($handle);

        }

        if(emptyempty($src))

        {

            die("图片源为空");

        }

        $this->h_src = @ImageCreateFromString($src);

        $this->src_w = $this->getImgWidth($this->h_src);

        $this->src_h = $this->getImgHeight($this->h_src);

    }



    /**

     * 设置图片生成路径

     *

     * @param    string    $dst_img   图片生成路径

     */

    function setDstImg($dst_img)

    {

        $arr  = explode('/',$dst_img);

        $last = array_pop($arr);

        $path = implode('/',$arr);

        $this->_mkdirs($path);

        $this->dst_img = $dst_img;

    }



    /**

     * 设置图片的显示质量

     *

     * @param    string      $n    质量

     */

    function setImgDisplayQuality($n)

    {

        $this->img_display_quality = (int)$n;

    }



    /**

     * 设置图片的生成质量

     *

     * @param    string      $n    质量

     */

    function setImgCreateQuality($n)

    {

        $this->img_create_quality = (int)$n;

    }



    /**

     * 设置文字水印

     *

     * @param    string     $word    水印文字

     * @param    integer    $font    水印字体

     * @param    string     $color   水印字体颜色

     */

    function setMaskWord($word)

    {

        $this->mask_word .= $word;

    }



    /**

     * 设置字体颜色

     *

     * @param    string     $color    字体颜色

     */

    function setMaskFontColor($color="#ffffff")

    {

        $this->mask_font_color = $color;

    }



    /**

     * 设置水印字体

     *

     * @param    string|integer    $font    字体

     */

    function setMaskFont($font=2)

    {

        if(!is_numeric($font) && !file_exists($font))

        {

            die("字体文件不存在");

        }

        $this->font = $font;

    }



    /**

     * 设置文字字体大小,仅对truetype字体有效

     */

    function setMaskFontSize($size = "12")

    {

        $this->font_size = $size;

    }



    /**

     * 设置图片水印

     *

     * @param    string    $img     水印图片源

     */

    function setMaskImg($img)

    {

        $this->mask_img = $img;

    }



    /**

     * 设置水印横向偏移

     *

     * @param    integer     $x    横向偏移量

     */

    function setMaskOffsetX($x)

    {

        $this->mask_offset_x = (int)$x;

    }



    /**

     * 设置水印纵向偏移

     *

     * @param    integer     $y    纵向偏移量

     */

    function setMaskOffsetY($y)

    {

        $this->mask_offset_y = (int)$y;

    }



    /**

     * 指定水印位置

     *

     * @param    integer     $position    位置,1:左上,2:左下,3:右上,0/4:右下

     */

    function setMaskPosition($position=0)

    {

        $this->mask_position = (int)$position;

    }



    /**

     * 设置图片合并程度

     *

     * @param    integer     $n    合并程度

     */

    function setMaskImgPct($n)

    {

        $this->mask_img_pct = (int)$n;

    }



    /**

     * 设置文字合并程度

     *

     * @param    integer     $n    合并程度

     */

    function setMaskTxtPct($n)

    {

        $this->mask_txt_pct = (int)$n;

    }



    /**

     * 设置缩略图边框

     *

     * @param    (类型)     (参数名)    (描述)

     */

    function setDstImgBorder($size=1, $color="#000000")

    {

        $this->img_border_size  = (int)$size;

        $this->img_border_color = $color;

    }



    /**

     * 水平翻转

     */

    function flipH()

    {

        $this->_flip_x++;

    }



    /**

     * 垂直翻转

     */

    function flipV()

    {

        $this->_flip_y++;

    }



    /**

     * 设置剪切类型

     *

     * @param    (类型)     (参数名)    (描述)

     */

    function setCutType($type)

    {

        $this->cut_type = (int)$type;

    }



    /**

     * 设置图片剪切

     *

     * @param    integer     $width    矩形剪切

     */

    function setRectangleCut($width, $height)

    {

        $this->fill_w = (int)$width;

        $this->fill_h = (int)$height;

    }



    /**

     * 设置源图剪切起始坐标点

     *

     * @param    (类型)     (参数名)    (描述)

     */

    function setSrcCutPosition($x, $y)

    {

        $this->src_x  = (int)$x;

        $this->src_y  = (int)$y;

    }



    /**

     * 创建图片,主函数

     * @param    integer    $a     当缺少第二个参数时，此参数将用作百分比，

     *                             否则作为宽度值

     * @param    integer    $b     图片缩放后的高度

     */

    function createImg($a, $b=null)

    {

        $num = func_num_args();

        if(1 == $num)

        {

            $r = (int)$a;

            if($r < 1)

            {

                die("图片缩放比例不得小于1");

            }

            $this->img_scale = $r;

            $this->_setNewImgSize($r);

        }



        if(2 == $num)

        {

            $w = (int)$a;

            $h = (int)$b;

            if(0 == $w)

            {

                die("目标宽度不能为0");

            }

            if(0 == $h)

            {

                die("目标高度不能为0");

            }

            $this->_setNewImgSize($w, $h);

        }



        if($this->_flip_x%2!=0)

        {

            $this->_flipH($this->h_src);

        }



        if($this->_flip_y%2!=0)

        {

            $this->_flipV($this->h_src);

        }

        $this->_createMask();

        $this->_output();



        // 释放

        if(imagedestroy($this->h_src) && imagedestroy($this->h_dst))

        {

            Return true;

        }

        else

        {

            Return false;

        }

    }



    /**

     * 生成水印,调用了生成水印文字和水印图片两个方法

     */

    function _createMask()

    {

        if($this->mask_word)

        {

            // 获取字体信息

            $this->_setFontInfo();



            if($this->_isFull())

            {

                die("水印文字过大");

            }

            else

            {

                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);

                $white = ImageColorAllocate($this->h_dst,255,255,255);

                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 填充背景色

                $this->_drawBorder();

                imagecopyresampled( $this->h_dst, $this->h_src,

                                    $this->start_x, $this->start_y,

                                    $this->src_x, $this->src_y,

                                    $this->fill_w, $this->fill_h,

                                    $this->copy_w, $this->copy_h);

                $this->_createMaskWord($this->h_dst);

            }

        }



        if($this->mask_img)

        {

            $this->_loadMaskImg();//加载时，取得宽高



            if($this->_isFull())

            {

                // 将水印生成在原图上再拷

                $this->_createMaskImg($this->h_src);

                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);

                $white = ImageColorAllocate($this->h_dst,255,255,255);

                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 填充背景色

                $this->_drawBorder();

                imagecopyresampled( $this->h_dst, $this->h_src,

                                    $this->start_x, $this->start_y,

                                    $this->src_x, $this->src_y,

                                    $this->fill_w, $this->start_y,

                                    $this->copy_w, $this->copy_h);

            }

            else

            {

                // 创建新图并拷贝

                $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);

                $white = ImageColorAllocate($this->h_dst,255,255,255);

                imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 填充背景色

                $this->_drawBorder();

                imagecopyresampled( $this->h_dst, $this->h_src,

                                    $this->start_x, $this->start_y,

                                    $this->src_x, $this->src_y,

                                    $this->fill_w, $this->fill_h,

                                    $this->copy_w, $this->copy_h);

                $this->_createMaskImg($this->h_dst);

            }

        }



        if(emptyempty($this->mask_word) && emptyempty($this->mask_img))

        {

            $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h);

            $white = ImageColorAllocate($this->h_dst,255,255,255);

            imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 填充背景色

            $this->_drawBorder();



            imagecopyresampled( $this->h_dst, $this->h_src,

                        $this->start_x, $this->start_y,

                        $this->src_x, $this->src_y,

                        $this->fill_w, $this->fill_h,

                        $this->copy_w, $this->copy_h);

        }

    }



    /**

     * 画边框

     */

    function _drawBorder()

    {

        if(!emptyempty($this->img_border_size))

        {

            $c = $this->_parseColor($this->img_border_color);

            $color = ImageColorAllocate($this->h_src,$c[0], $c[1], $c[2]);

            imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);// 填充背景色

        }

    }



    /**

     * 生成水印文字

     */

    function _createMaskWord($src)

    {

        $this->_countMaskPos();

        $this->_checkMaskValid();



        $c = $this->_parseColor($this->mask_font_color);

        $color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2], $this->mask_txt_pct);



        if(is_numeric($this->font))

        {

            imagestring($src,

                        $this->font,

                        $this->mask_pos_x, $this->mask_pos_y,

                        $this->mask_word,

                        $color);

        }

        else

        {

            imagettftext($src,

                        $this->font_size, 0,

                        $this->mask_pos_x, $this->mask_pos_y,

                        $color,

                        $this->font,

                        $this->mask_word);

        }

    }



    /**

     * 生成水印图

     */

    function _createMaskImg($src)

    {

        $this->_countMaskPos();

        $this->_checkMaskValid();

        imagecopymerge($src,

                        $this->h_mask,

                        $this->mask_pos_x ,$this->mask_pos_y,

                        0, 0,

                        $this->mask_w, $this->mask_h,

                        $this->mask_img_pct);



        imagedestroy($this->h_mask);

    }



    /**

     * 加载水印图

     */

    function _loadMaskImg()

    {

        $mask_type = $this->_getImgType($this->mask_img);

        $this->_checkValid($mask_type);



        // file_get_contents函数要求php版本>4.3.0

        $src = '';

        if(function_exists("file_get_contents"))

        {

            $src = file_get_contents($this->mask_img);

        }

        else

        {

            $handle = fopen ($this->mask_img, "r");

            while (!feof ($handle))

            {

                $src .= fgets($fd, 4096);

            }

            fclose ($handle);

        }

        if(emptyempty($this->mask_img))

        {

            die("水印图片为空");

        }

        $this->h_mask = ImageCreateFromString($src);

        $this->mask_w = $this->getImgWidth($this->h_mask);

        $this->mask_h = $this->getImgHeight($this->h_mask);

    }



    /**

     * 图片输出

     */

    function _output()

    {

        $img_type  = $this->img_type;

        $func_name = $this->all_type[$img_type]['output'];

        if(function_exists($func_name))

        {

            // 判断浏览器,若是IE就不发送头

            if(isset($_SERVER['HTTP_USER_AGENT']))

            {

                $ua = strtoupper($_SERVER['HTTP_USER_AGENT']);

                if(!preg_match('/^.*MSIE.*/)$/i',$ua))

                {

                    header("Content-type:$img_type");

                }

            }

            $func_name($this->h_dst, $this->dst_img, $this->img_display_quality);

        }

        else

        {

            Return false;

        }

    }



    /**

     * 分析颜色

     *

     * @param    string     $color    十六进制颜色

     */

    function _parseColor($color)

    {

        $arr = array();

        for($ii=1; $ii<strlen function="" return="" this-="">_isFull())

        {

            switch($this->mask_position)

            {

                case 1:

                    // 左上

                    $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;

                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;

                    break;



                case 2:

                    // 左下

                    $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;

                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;

                    break;



                case 3:

                    // 右上

                    $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;

                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;

                    break;



                case 4:

                    // 右下

                    $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;

                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;

                    break;



                default:

                    // 默认将水印放到右下,偏移指定像素

                    $this->mask_pos_x = $this->src_w - $this->mask_w - $this->mask_offset_x;

                    $this->mask_pos_y = $this->src_h - $this->mask_h - $this->mask_offset_y;

                    break;

            }

        }

        else

        {

            switch($this->mask_position)

            {

                case 1:

                    // 左上

                    $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;

                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;

                    break;



                case 2:

                    // 左下

                    $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size;

                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;

                    break;



                case 3:

                    // 右上

                    $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;

                    $this->mask_pos_y = $this->mask_offset_y + $this->img_border_size;

                    break;



                case 4:

                    // 右下

                    $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;

                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;

                    break;



                default:

                    // 默认将水印放到右下,偏移指定像素

                    $this->mask_pos_x = $this->dst_w - $this->mask_w - $this->mask_offset_x - $this->img_border_size;

                    $this->mask_pos_y = $this->dst_h - $this->mask_h - $this->mask_offset_y - $this->img_border_size;

                    break;

            }

        }

    }



    /**

     * 设置字体信息

     */

    function _setFontInfo()

    {

        if(is_numeric($this->font))

        {

            $this->font_w  = imagefontwidth($this->font);

            $this->font_h  = imagefontheight($this->font);



            // 计算水印字体所占宽高

            $word_length   = strlen($this->mask_word);

            $this->mask_w  = $this->font_w*$word_length;

            $this->mask_h  = $this->font_h;

        }

        else

        {

            $arr = imagettfbbox ($this->font_size,0, $this->font,$this->mask_word);

            $this->mask_w  = abs($arr[0] - $arr[2]);

            $this->mask_h  = abs($arr[7] - $arr[1]);

        }

    }



    /**

     * 设置新图尺寸

     *

     * @param    integer     $img_w   目标宽度

     * @param    integer     $img_h   目标高度

     */

    function _setNewImgSize($img_w, $img_h=null)

    {

        $num = func_num_args();

        if(1 == $num)

        {

            $this->img_scale = $img_w;// 宽度作为比例

            $this->fill_w = round($this->src_w * $this->img_scale / 100) - $this->img_border_size*2;

            $this->fill_h = round($this->src_h * $this->img_scale / 100) - $this->img_border_size*2;



            // 源文件起始坐标

            $this->src_x  = 0;

            $this->src_y  = 0;

            $this->copy_w = $this->src_w;

            $this->copy_h = $this->src_h;



            // 目标尺寸

            $this->dst_w   = $this->fill_w + $this->img_border_size*2;

            $this->dst_h   = $this->fill_h + $this->img_border_size*2;

        }



        if(2 == $num)

        {

            $fill_w   = (int)$img_w - $this->img_border_size*2;

            $fill_h   = (int)$img_h - $this->img_border_size*2;

            if($fill_w < 0 || $fill_h < 0)

            {

                die("图片边框过大，已超过了图片的宽度");

            }

            $rate_w = $this->src_w/$fill_w;

            $rate_h = $this->src_h/$fill_h;



            switch($this->cut_type)

            {

                case 0:

                    // 如果原图大于缩略图，产生缩小，否则不缩小

                    if($rate_w < 1 && $rate_h < 1)

                    {

                        $this->fill_w = (int)$this->src_w;

                        $this->fill_h = (int)$this->src_h;

                    }

                    else

                    {

                        if($rate_w >= $rate_h)

                        {

                            $this->fill_w = (int)$fill_w;

                            $this->fill_h = round($this->src_h/$rate_w);

                        }

                        else

                        {

                            $this->fill_w = round($this->src_w/$rate_h);

                            $this->fill_h = (int)$fill_h;

                        }

                    }



                    $this->src_x  = 0;

                    $this->src_y  = 0;



                    $this->copy_w = $this->src_w;

                    $this->copy_h = $this->src_h;



                    // 目标尺寸

                    $this->dst_w   = $this->fill_w + $this->img_border_size*2;

                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;

                    break;



                // 自动裁切

                case 1:

                    // 如果图片是缩小剪切才进行操作

                    if($rate_w >= 1 && $rate_h >=1)

                    {

                        if($this->src_w > $this->src_h)

                        {

                            $src_x = round($this->src_w-$this->src_h)/2;

                            $this->setSrcCutPosition($src_x, 0);

                            $this->setRectangleCut($fill_h, $fill_h);



                            $this->copy_w = $this->src_h;

                            $this->copy_h = $this->src_h;



                        }

                        elseif($this->src_w < $this->src_h)

                        {

                            $src_y = round($this->src_h-$this->src_w)/2;

                            $this->setSrcCutPosition(0, $src_y);

                            $this->setRectangleCut($fill_w, $fill_h);



                            $this->copy_w = $this->src_w;

                            $this->copy_h = $this->src_w;

                        }

                        else

                        {

                            $this->setSrcCutPosition(0, 0);

                            $this->copy_w = $this->src_w;

                            $this->copy_h = $this->src_w;

                            $this->setRectangleCut($fill_w, $fill_h);

                        }

                    }

                    else

                    {

                        $this->setSrcCutPosition(0, 0);

                        $this->setRectangleCut($this->src_w, $this->src_h);



                        $this->copy_w = $this->src_w;

                        $this->copy_h = $this->src_h;

                    }



                    // 目标尺寸

                    $this->dst_w   = $this->fill_w + $this->img_border_size*2;

                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;



                    break;



                // 手工裁切

                case 2:

                    $this->copy_w = $this->fill_w;

                    $this->copy_h = $this->fill_h;



                    // 目标尺寸

                    $this->dst_w   = $this->fill_w + $this->img_border_size*2;

                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;



                    break;

                default:

                    break;



            }

        }



        // 目标文件起始坐标

        $this->start_x = $this->img_border_size;

        $this->start_y = $this->img_border_size;

    }



    /**

     * 检查水印图是否大于生成后的图片宽高

     */

    function _isFull()

    {

        Return (   $this->mask_w + $this->mask_offset_x > $this->fill_w

                || $this->mask_h + $this->mask_offset_y > $this->fill_h)

                   ?true:false;

    }



    /**

     * 检查水印图是否超过原图

     */

    function _checkMaskValid()

    {

        if(    $this->mask_w + $this->mask_offset_x > $this->src_w

            || $this->mask_h + $this->mask_offset_y > $this->src_h)

        {

            die("水印图片尺寸大于原图，请缩小水印图");

        }

    }



    /**

     * 取得图片类型

     *

     * @param    string     $file_path    文件路径

     */

    function _getImgType($file_path)

    {

        $type_list = array("1"=>"gif","2"=>"jpg","3"=>"png","4"=>"swf","5" => "psd","6"=>"bmp","15"=>"wbmp");

        if(file_exists($file_path))

        {

            $img_info = @getimagesize ($file_path);

            if(isset($type_list[$img_info[2]]))

            {

                Return $type_list[$img_info[2]];

            }

        }

        else

        {

            die("文件不存在,不能取得文件类型!");

        }

    }



    /**

     * 检查图片类型是否合法,调用了array_key_exists函数，此函数要求

     * php版本大于4.1.0

     *

     * @param    string     $img_type    文件类型

     */

    function _checkValid($img_type)

    {

        if(!array_key_exists($img_type, $this->all_type))

        {

            Return false;

        }

    }



    /**

     * 按指定路径生成目录

     *

     * @param    string     $path    路径

     */

    function _mkdirs($path)

    {

        $adir = explode('/',$path);

        $dirlist = '';

        $rootdir = array_shift($adir);

        if(($rootdir!='.'||$rootdir!='..')&&!file_exists($rootdir))

        {

            @mkdir($rootdir);

        }

        foreach($adir as $key=>$val)

        {

            if($val!='.'&&$val!='..')

            {

                $dirlist .= "/".$val;

                $dirpath = $rootdir.$dirlist;

                if(!file_exists($dirpath))

                {

                    @mkdir($dirpath);

                    @chmod($dirpath,0777);

                }

            }

        }

    }



    /**

     * 垂直翻转

     *

     * @param    string     $src    图片源

     */

    function _flipV($src)

    {

        $src_x = $this->getImgWidth($src);

        $src_y = $this->getImgHeight($src);



        $new_im = imagecreatetruecolor($src_x, $src_y);

        for ($y = 0; $y < $src_y; $y++)

        {

            imagecopy($new_im, $src, 0, $src_y - $y - 1, 0, $y, $src_x, 1);

        }

        $this->h_src = $new_im;

    }



    /**

     * 水平翻转

     *

     * @param    string     $src    图片源

     */

    function _flipH($src)

    {

        $src_x = $this->getImgWidth($src);

        $src_y = $this->getImgHeight($src);



        $new_im = imagecreatetruecolor($src_x, $src_y);

        for ($x = 0; $x < $src_x; $x++)

        {

            imagecopy($new_im, $src, $src_x - $x - 1, 0, $x, 0, 1, $src_y);

        }

        $this->h_src = $new_im;

    }

}

?>

函数描述及例子

使用实例:



< ?php

require_once('lib/thumb.class.php');



$t = new ThumbHandler();



$t->setSrcImg("img/test.jpg");

$t->setDstImg("tmp/new_test.jpg");

$t->setMaskImg("img/test.gif");

$t->setMaskPosition(1);

$t->setMaskImgPct(80);

$t->setDstImgBorder(4,"#dddddd");



// 指定缩放比例

$t->createImg(300,200);

?>

setSrcImg("img/test.jpg");

$t->setMaskWord("test");

$t->setDstImgBorder(10,"#dddddd");



// 指定缩放比例

$t->createImg(50);

?>

setSrcImg("img/test.jpg");

$t->setMaskWord("test");



// 指定固定宽高

$t->createImg(200,200);

?>

setSrcImg("img/test.jpg");

$t->setDstImg("tmp/new_test.jpg");

$t->setMaskWord("test");



// 指定固定宽高

$t->createImg(200,200);

?>

setSrcImg("img/test.jpg");



// 指定字体文件地址

$t->setMaskFont("c:/winnt/fonts/arial.ttf");

$t->setMaskFontSize(20);

$t->setMaskFontColor("#ffff00");

$t->setMaskWord("test3333333");

$t->setDstImgBorder(99,"#dddddd");

$t->createImg(50);



?>

setSrcImg("img/test.jpg");

$t->setMaskOffsetX(55);

$t->setMaskOffsetY(55);

$t->setMaskPosition(1);

//$t->setMaskPosition(2);

//$t->setMaskPosition(3);

//$t->setMaskPosition(4);

$t->setMaskFontColor("#ffff00");

$t->setMaskWord("test");



// 指定固定宽高

$t->createImg(50);

?>

setSrcImg("img/test.jpg");

$t->setMaskFont("c:/winnt/fonts/simyou.ttf");

$t->setMaskFontSize(20);

$t->setMaskFontColor("#ffffff");

$t->setMaskTxtPct(20);

$t->setDstImgBorder(10,"#dddddd");

$text = "中文";

$str = mb_convert_encoding($text, "UTF-8", "gb2312");

$t->setMaskWord($str);

$t->setMaskWord("test");



// 指定固定宽高

$t->createImg(50);

?> </strlen>