<?php   
/**  
*  基本圖片處理，用于完成圖片縮入，水印添加  
*  當水印圖超過目標圖片尺寸時，水印圖能自動適應目標圖片而縮小  
*  水印圖可以設置跟背景的合并度 
*/   

/*  
使用方法:  
    自動裁切:  
    程序會按照圖片的尺寸從中部裁切最大的正方形，并按目標尺寸進行縮略  

    $t--->setSrcImg("img/test.jpg");  
    $t->setCutType(1);//這一句就OK了  
    $t->setDstImg("tmp/new_test.jpg");  
    $t->createImg(60,60);  

    手工裁切:  
    程序會按照指定的位置從源圖上取圖  

    $t->setSrcImg("img/test.jpg");  
    $t->setCutType(2);//指明為手工裁切  
    $t->setSrcCutPosition(100, 100);// 源圖起點坐標  
    $t->setRectangleCut(300, 200);// 裁切尺寸  
    $t->setDstImg("tmp/new_test.jpg");  
    $t->createImg(300,200);  
*/   
class ThumbHandler   
{   
    var $dst_img;// 目標文件   
    var $h_src; // 圖片資源句柄   
    var $h_dst;// 新圖句柄   
    var $h_mask;// 水印句柄   
    var $img_create_quality = 100;// 圖片生成質(zhì)量   
    var $img_display_quality = 80;// 圖片顯示質(zhì)量,默認為75   
    var $img_scale = 0;// 圖片縮放比例   
    var $src_w = 0;// 原圖寬度   
    var $src_h = 0;// 原圖高度   
    var $dst_w = 0;// 新圖總寬度   
    var $dst_h = 0;// 新圖總高度   
    var $fill_w;// 填充圖形寬   
    var $fill_h;// 填充圖形高   
    var $copy_w;// 拷貝圖形寬   
    var $copy_h;// 拷貝圖形高   
    var $src_x = 0;// 原圖繪制起始橫坐標   
    var $src_y = 0;// 原圖繪制起始縱坐標   
    var $start_x;// 新圖繪制起始橫坐標   
    var $start_y;// 新圖繪制起始縱坐標   
    var $mask_word;// 水印文字   
    var $mask_img;// 水印圖片   
    var $mask_pos_x = 0;// 水印橫坐標   
    var $mask_pos_y = 0;// 水印縱坐標   
    var $mask_offset_x = 5;// 水印橫向偏移   
    var $mask_offset_y = 5;// 水印縱向偏移   
    var $font_w;// 水印字體寬   
    var $font_h;// 水印字體高   
    var $mask_w;// 水印寬   
    var $mask_h;// 水印高   
    var $mask_font_color = "#ffffff";// 水印文字顏色   
    var $mask_font = 2;// 水印字體   
    var $font_size;// 尺寸   
    var $mask_position = 0;// 水印位置   
    var $mask_img_pct = 50;// 圖片合并程度,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;// 圖片邊框尺寸   
    var $img_border_color;// 圖片邊框顏色   
    var $_flip_x=0;// 水平翻轉(zhuǎn)次數(shù)   
    var $_flip_y=0;// 垂直翻轉(zhuǎn)次數(shù)   

    var $cut_type=0;// 剪切類型   

    
    var $img_type;// 文件類型   

    // 文件類型定義,并指出了輸出圖片的函數(shù)   
    var $all_type = array(   
        "jpg"  => array("output"=>"imagejpeg"),   
        "gif"  => array("output"=>"imagegif"),   
        "png"  => array("output"=>"imagepng"),   
        "wbmp" => array("output"=>"image2wbmp"),   
        "jpeg" => array("output"=>"imagejpeg"));   

    /**  
     * 構造函數(shù)  
     */   
    function ThumbHandler()   
    {   
        $this->mask_font_color = "#ffffff";   
        $this->font = 2;   
        $this->font_size = 12;   
    }   

    /**  
     * 取得圖片的寬  
     */   
    function getImgWidth($src)   
    {   
        return imagesx($src);   
    }   

    /**  
     * 取得圖片的高  
     */   
    function getImgHeight($src)   
    {   
        return imagesy($src);   
    }   

    /**  
     * 設置圖片生成路徑  
     *  
     * @param    string    $src_img   圖片生成路徑  
     */   
    function setSrcImg($src_img, $img_type=null)   
    {   
        if(!file_exists($src_img))   
        {   
            die("圖片不存在");   
        }   

        if(!empty($img_type))   
        {   
            $this->img_type = $img_type;   
        }   
        else   
        {   
            $this->img_type = $this->_getImgType($src_img);   
        }   

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

        // file_get_contents函數(shù)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 ($handle);   
        }   
        if(empty($src))   
        {   
            die("圖片源為空");   
        }   
        $this->h_src = @ImageCreateFromString($src);   
        $this->src_w = $this->getImgWidth($this->h_src);   
        $this->src_h = $this->getImgHeight($this->h_src);   
    }   

    /**  
     * 設置圖片生成路徑  
     *  
     * @param    string    $dst_img   圖片生成路徑  
     */   
    function setDstImg($dst_img)   
    {   
        $arr  = explode('/',$dst_img);   
        $last = array_pop($arr);   
        $path = implode('/',$arr);   
        $this->_mkdirs($path);   
        $this->dst_img = $dst_img;   
    }   

    /**  
     * 設置圖片的顯示質(zhì)量  
     *  
     * @param    string      $n    質(zhì)量  
     */   
    function setImgDisplayQuality($n)   
    {   
        $this->img_display_quality = (int)$n;   
    }   

    /**  
     * 設置圖片的生成質(zhì)量  
     *  
     * @param    string      $n    質(zhì)量  
     */   
    function setImgCreateQuality($n)   
    {   
        $this->img_create_quality = (int)$n;   
    }   

    /**  
     * 設置文字水印  
     *  
     * @param    string     $word    水印文字  
     * @param    integer    $font    水印字體  
     * @param    string     $color   水印字體顏色  
     */   
    function setMaskWord($word)   
    {   
        $this->mask_word .= $word;   
    }   

    /**  
     * 設置字體顏色  
     *  
     * @param    string     $color    字體顏色  
     */   
    function setMaskFontColor($color="#ffffff")   
    {   
        $this->mask_font_color = $color;   
    }   

    /**  
     * 設置水印字體  
     *  
     * @param    string|integer    $font    字體  
     */   
    function setMaskFont($font=2)   
    {   
        if(!is_numeric($font) && !file_exists($font))   
        {   
            die("字體文件不存在");   
        }   
        $this->font = $font;   
    }   

    /**  
     * 設置文字字體大小,僅對truetype字體有效  
     */   
    function setMaskFontSize($size = "12")   
    {   
        $this->font_size = $size;   
    }   

    /**  
     * 設置圖片水印  
     *  
     * @param    string    $img     水印圖片源  
     */   
    function setMaskImg($img)   
    {   
        $this->mask_img = $img;   
    }   

    /**  
     * 設置水印橫向偏移  
     *  
     * @param    integer     $x    橫向偏移量  
     */   
    function setMaskOffsetX($x)   
    {   
        $this->mask_offset_x = (int)$x;   
    }   

    /**  
     * 設置水印縱向偏移  
     *  
     * @param    integer     $y    縱向偏移量  
     */   
    function setMaskOffsetY($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;   
    }   

    /**  
     * 設置圖片合并程度  
     *  
     * @param    integer     $n    合并程度  
     */   
    function setMaskImgPct($n)   
    {   
        $this->mask_img_pct = (int)$n;   
    }   

    /**  
     * 設置文字合并程度  
     *  
     * @param    integer     $n    合并程度  
     */   
    function setMaskTxtPct($n)   
    {   
        $this->mask_txt_pct = (int)$n;   
    }   

    /**  
     * 設置縮略圖邊框  
     *  
     * @param    (類型)     (參數(shù)名)    (描述)  
     */   
    function setDstImgBorder($size=1, $color="#000000")   
    {   
        $this->img_border_size  = (int)$size;   
        $this->img_border_color = $color;   
    }   

    /**  
     * 水平翻轉(zhuǎn)  
     */   
    function flipH()   
    {   
        $this->_flip_x++;   
    }   

    /**  
     * 垂直翻轉(zhuǎn)  
     */   
    function flipV()   
    {   
        $this->_flip_y++;   
    }   

    /**  
     * 設置剪切類型  
     *  
     * @param    (類型)     (參數(shù)名)    (描述)  
     */   
    function setCutType($type)   
    {   
        $this->cut_type = (int)$type;   
    }   

    /**  
     * 設置圖片剪切  
     *  
     * @param    integer     $width    矩形剪切  
     */   
    function setRectangleCut($width, $height)   
    {   
        $this->fill_w = (int)$width;   
        $this->fill_h = (int)$height;   
    }   

    /**  
     * 設置源圖剪切起始坐標點  
     *  
     * @param    (類型)     (參數(shù)名)    (描述)  
     */   
    function setSrcCutPosition($x, $y)   
    {   
        $this->src_x  = (int)$x;   
        $this->src_y  = (int)$y;   
    }   

    /**  
     * 創(chuàng)建圖片,主函數(shù)  
     * @param    integer    $a     當缺少第二個參數(shù)時，此參數(shù)將用作百分比，  
     *                             否則作為寬度值  
     * @param    integer    $b     圖片縮放后的高度  
     */   
    function createImg($a, $b=null)   
    {   
        $num = func_num_args();   
        if(1 == $num)   
        {   
            $r = (int)$a;   
            if($r < 1)   
            {   
                die("圖片縮放比例不得小于1");   
            }   
            $this->img_scale = $r;   
            $this->_setNewImgSize($r);   
        }   

        if(2 == $num)   
        {   
            $w = (int)$a;   
            $h = (int)$b;   
            if(0 == $w)   
            {   
                die("目標寬度不能為0");   
            }   
            if(0 == $h)   
            {   
                die("目標高度不能為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();   

        // 釋放   
        if(imagedestroy($this->h_src) && imagedestroy($this->h_dst))   
        {   
            Return true;   
        }   
        else   
        {   
            Return false;   
        }   
    }   

    /**  
     * 生成水印,調(diào)用了生成水印文字和水印圖片兩個方法  
     */   
    function _createMask()   
    {   
        if($this->mask_word)   
        {   
            // 獲取字體信息   
            $this->_setFontInfo();   

            if($this->_isFull())   
            {   
                die("水印文字過大");   
            }   
            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();//加載時，取得寬高   

            if($this->_isFull())   
            {   
                // 將水印生成在原圖上再拷   
                $this->_createMaskImg($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   
            {   
                // 創(chuàng)建新圖并拷貝   
                $this->h_dst = imagecreatetruecolor($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(empty($this->mask_word) && empty($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);   
        }   
    }   

    /**  
     * 畫邊框  
     */   
    function _drawBorder()   
    {   
        if(!empty($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);   
        }   
    }   

    /**  
     * 生成水印圖  
     */   
    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);   
    }   

    /**  
     * 加載水印圖  
     */   
    function _loadMaskImg()   
    {   
        $mask_type = $this->_getImgType($this->mask_img);   
        $this->_checkValid($mask_type);   

        // file_get_contents函數(shù)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 ($handle);   
        }   
        if(empty($this->mask_img))   
        {   
            die("水印圖片為空");   
        }   
        $this->h_mask = ImageCreateFromString($src);   
        $this->mask_w = $this->getImgWidth($this->h_mask);   
        $this->mask_h = $this->getImgHeight($this->h_mask);   
    }   

    /**  
     * 圖片輸出  
     */   
    function _output()   
    {   
        $img_type  = $this->img_type;   
        $func_name = $this->all_type[$img_type]['output'];   
        if(function_exists($func_name))   
        {   
            // 判斷瀏覽器,若是IE就不發(fā)送頭   
            if(isset($_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;   
        }   
    }   

    /**  
     * 分析顏色  
     *  
     * @param    string     $color    十六進制顏色  
     */   
    function _parseColor($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:   
                    // 默認將水印放到右下,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:   
                    // 默認將水印放到右下,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;   
            }   
        }   
    }   

    /**  
     * 設置字體信息  
     */   
    function _setFontInfo()   
    {   
        if(is_numeric($this->font))   
        {   
            $this->font_w  = imagefontwidth($this->font);   
            $this->font_h  = imagefontheight($this->font);   

            // 計算水印字體所占寬高   
            $word_length   = strlen($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]);   
        }   
    }   

    /**  
     * 設置新圖尺寸  
     *  
     * @param    integer     $img_w   目標寬度  
     * @param    integer     $img_h   目標高度  
     */   
    function _setNewImgSize($img_w, $img_h=null)   
    {   
        $num = func_num_args();   
        if(1 == $num)   
        {   
            $this->img_scale = $img_w;// 寬度作為比例   
            $this->fill_w = round($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;   

            // 源文件起始坐標   
            $this->src_x  = 0;   
            $this->src_y  = 0;   
            $this->copy_w = $this->src_w;   
            $this->copy_h = $this->src_h;   

            // 目標尺寸   
            $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("圖片邊框過大，已超過了圖片的寬度");   
            }   
            $rate_w = $this->src_w/$fill_w;   
            $rate_h = $this->src_h/$fill_h;   

            switch($this->cut_type)   
            {   
                case 0:   
                    // 如果原圖大于縮略圖，產(chǎn)生縮小，否則不縮小   
                    if($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;   

                    // 目標尺寸   
                    $this->dst_w   = $this->fill_w + $this->img_border_size*2;   
                    $this->dst_h   = $this->fill_h + $this->img_border_size*2;   
                    break;   

                // 自動裁切   
                case 1:   
                    // 如果圖片是縮小剪切才進行操作   
                    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;   
                    }   

                    // 目標尺寸   
                    $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;   

                    // 目標尺寸   
                    $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;   

            }   
        }   

        // 目標文件起始坐標   
        $this->start_x = $this->img_border_size;   
        $this->start_y = $this->img_border_size;   
    }   

    /**  
     * 檢查水印圖是否大于生成后的圖片寬高  
     */   
    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;   
    }   

    /**  
     * 檢查水印圖是否超過原圖  
     */   
    function _checkMaskValid()   
    {   
        if(    $this->mask_w + $this->mask_offset_x > $this->src_w   
            || $this->mask_h + $this->mask_offset_y > $this->src_h)   
        {   
            die("水印圖片尺寸大于原圖，請縮小水印圖");   
        }   
    }   

    /**  
     * 取得圖片類型  
     *  
     * @param    string     $file_path    文件路徑  
     */   
    function _getImgType($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,不能取得文件類型!");   
        }   
    }   

    /**  
     * 檢查圖片類型是否合法,調(diào)用了array_key_exists函數(shù)，此函數(shù)要求  
     * php版本大于4.1.0  
     *  
     * @param    string     $img_type    文件類型  
     */   
    function _checkValid($img_type)   
    {   
        if(!array_key_exists($img_type, $this->all_type))   
        {   
            Return false;   
        }   
    }   

    /**  
     * 按指定路徑生成目錄  
     *  
     * @param    string     $path    路徑  
     */   
    function _mkdirs($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);   
                }   
            }   
        }   
    }   

    /**  
     * 垂直翻轉(zhuǎn)  
     *  
     * @param    string     $src    圖片源  
     */   
    function _flipV($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;   
    }   

    /**  
     * 水平翻轉(zhuǎn)  
     *  
     * @param    string     $src    圖片源  
     */   
    function _flipH($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;   
    }   
}   
?>

< ?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");   

// 指定縮放比例   
$t->createImg(300,200);   
?> 

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

$t = new ThumbHandler();   

// 基本使用   
$t--->setSrcImg("img/test.jpg");   
$t->setMaskWord("test");   
$t->setDstImgBorder(10,"#dddddd");   

// 指定縮放比例   
$t->createImg(50);   
?>

<?php   
equire_once('lib/thumb.class.php');   

$t = new ThumbHandler();   

// 基本使用   
$t--->setSrcImg("img/test.jpg");   
$t->setMaskWord("test");   

// 指定固定寬高   
$t->createImg(200,200);   
?>   

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

$t = new ThumbHandler();   

$t--->setSrcImg("img/test.jpg");   
$t->setDstImg("tmp/new_test.jpg");   
$t->setMaskWord("test");   

// 指定固定寬高   
$t->createImg(200,200);   
?>  

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

$t = new ThumbHandler();   

$t--->setSrcImg("img/test.jpg");   

// 指定字體文件地址   
$t->setMaskFont("c:/winnt/fonts/arial.ttf");   
$t->setMaskFontSize(20);   
$t->setMaskFontColor("#ffff00");   
$t->setMaskWord("test3333333");   
$t->setDstImgBorder(99,"#dddddd");   
$t->createImg(50);  
?>   

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

$t = new ThumbHandler();   

$t->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");   

// 指定固定寬高   
$t->createImg(50);   
?>   

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

$t = new ThumbHandler();   

$t->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");   

// 指定固定寬高   
$t->createImg(50);   
?> </strlen>