array(output=>imagejpeg), gif => array(output=>imagegif), png => array(output=>imagepng), wbmp => array(output=>image2wbmp), jpeg => array(output=>imagejpeg)); function thumbhandler() { $this->mask_font_color = #ffffff; $this->font = 2; $this->font_size = 12; } function getimgwidth($src) { return imagesx($src); } function getimgheight($src) { return imagesy($src); } /** * 设置图片生成路径 */ function setsrcimg($src_img, $img_type=null) { if(!file_exists($src_img)) { die(图片不存在); } if(!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 ($handle); } if(empty($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); } function setdstimg($dst_img) { $arr = explode('/',$dst_img); $last = array_pop($arr); $path = implode('/',$arr); $this->_mkdirs($path); $this->dst_img = $dst_img; } /** * 设置图片显路径 */ function setimgdisplayquality($n) { $this->img_display_quality = (int)$n; } function setimgcreatequality($n) { $this->img_create_quality = (int)$n; } function setmaskword($word) { $this->mask_word .= $word; } function setmaskfontcolor($color=#ffffff) { $this->mask_font_color = $color; } /** * 水印文件 */ function setmaskfont($font=2) { if(!is_numeric($font) && !file_exists($font)) { die(字体文件不存在); } $this->font = $font; } /** * 字体大写 */ function setmaskfontsize($size = 12) { $this->font_size = $size; } //水印 function setmaskimg($img) { $this->mask_img = $img; } function setmaskoffsetx($x) { $this->mask_offset_x = (int)$x; } function setmaskoffsety($y) { $this->mask_offset_y = (int)$y; } function setmaskposition($position=0) { $this->mask_position = (int)$position; } function setmaskimgpct($n) { $this->mask_img_pct = (int)$n; } function setmasktxtpct($n) { $this->mask_txt_pct = (int)$n; } function setdstimgborder($size=1, $color=#000000) { $this->img_border_size = (int)$size; $this->img_border_color = $color; } function fliph() { $this->_flip_x; } function flipv() { $this->_flip_y; } function setcuttype($type) { $this->cut_type = (int)$type; } function setrectanglecut($width, $height) { $this->fill_w = (int)$width; $this->fill_h = (int)$height; } function setsrccutposition($x, $y) { $this->src_x = (int)$x; $this->src_y = (int)$y; } function createimg($a, $b=null) { $num = func_num_args(); if(1 == $num) { $r = (int)$a; if($r 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(); $this->_output(); if(imagedestroy($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(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, $this->copy_h); } } function _drawborder() { if(!empty($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,$color);// 填充背景色 } } function _createmaskword($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); } } function _createmaskimg($src) { $this->_countmaskpos(); $this->_checkmaskvalid(); imagecopymerge($src,$this->h_mask,$this->mask_pos_x ,$this->mask_pos_y0, 0,$this->mask_w, $this->mask_h,$this->mask_img_pct); imagedestroy($this->h_mask); } 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 ($handle); } if(empty($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); } 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, $this->img_display_quality); } else { return false; } } function _parsecolor($color) { $arr = array(); for($ii=1; $ii_isfull()) { switch($this->mask_position) { case 1: $this->mask_pos_x = $this->mask_offset_x + $this->img_border_size; $this->mask_pos_y = $this->mask_offset_y + $this->img_border_sizebreak; case 2: $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_ybreak; case 3: $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_sizebreak; case 4: $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_ybreak; 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 - $this->mask_offset_ybreak; } } else { switch($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_sizebreak; 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_sizebreak; 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_sizebreak; 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_sizebreak; 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 - $this->img_border_sizebreak; } } } function _setfontinfo() { if(is_numeric($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] - $arr[1]); } } //新图片大小 function _setnewimgsize($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 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 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 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; } function _checkmaskvalid() { if( $this->mask_w + $this->mask_offset_x > $this->src_w || $this->mask_h + $this->mask_offset_y > $this->src_h) { die(水印图片尺寸大于原图，请缩小水印图); } } /** * 取得图片类型 */ function _getimgtype($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 */ function _checkvalid($img_type) { if(!array_key_exists($img_type, $this->all_type)) { return false; } } /** * 按指定路径生成目录 * * @param */ function _mkdirs($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($dirpath,0777); } } } } function _flipv($src) { $src_x = $this->getimgwidth($src); $src_y = $this->getimgheight($src); $new_im = imagecreatetruecolor($src_x, $src_y); for ($y = 0; $y h_src = $new_im; } function _fliph($src) { $src_x = $this->getimgwidth($src); $src_y = $this->getimgheight($src); $new_im = imagecreatetruecolor($src_x, $src_y); for ($x = 0; $x h_src = $new_im; }}
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? 测试代码：
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? test.php
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setsrcimg(test.gif);$t->setdstimg(new_test.jpg);$t->setmaskposition(1);$t->setmaskimgpct(80);$t->setdstimgborder(4,#dddddd);// 指定缩放比例$t->createimg(300,200);
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