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;// 圖片生成質量 var $img_display_quality = 80;// 圖片顯示質量,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;// 圖片合並程度,值越大,合並程序越低 var $mask_txt_pct = 50;// 文字合並程度,值越小,合並程序越低 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;// 水平翻轉次數 var $_flip_y=0;// 垂直翻轉次數 var $cut_type=0;// 剪切類型 var $img_type;// 文件類型 // 文件類型定義,並指出了輸出圖片的函數 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 */ 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; } /** * 設置圖片的顯示質量 * * @param string $n 質量 */ function setImgDisplayQuality($n) { $this->img_display_quality = (int)$n; } /** * 設置圖片的生成質量 * * @param string $n 質量 */ function setImgCreateQuality($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; } /** * 設置圖片合並程度 * * @param integer $n 合並程度 */ function setMaskImgPct($n) { $this->mask_img_pct = (int)$n; } /** * 設置文字合並程度 * * @param integer $n 合並程度 */ function setMaskTxtPct($n) { $this->mask_txt_pct = (int)$n; } /** * 設置縮略圖邊框 * * @param (類型) (參數名) (描述) */ function setDstImgBorder($size=1, $color="#000000") { $this->img_border_size = (int)$size; $this->img_border_color = $color; } /** * 水平翻轉 */ function flipH() { $this->_flip_x++; } /** * 垂直翻轉 */ function flipV() { $this->_flip_y++; } /** * 設置剪切類型 * * @param (類型) (參數名) (描述) */ function setCutType($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) (參數名) (描述) */ function setSrcCutPosition($x, $y) { $this->src_x = (int)$x; $this->src_y = (int)$y; } /** * 創建圖片,主函數 * @param integer $a 當缺少第二個參數時,此參數將用作百分比, * 否則作為寬度值 * @param integer $b 圖片縮放後的高度 */ function createImg($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於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 { // 創建新圖並拷貝 $this->h_dst = imagecreatetruecolor($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($func_name)) { // 判斷浏覽器,若是IE就不發送頭 if(isset($_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; $ii_isFull()) { switch($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($this->cut_type) { case 0: // 如果原圖大於縮略圖,產生縮小,否則不縮小 if($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; } /** * 檢查水印圖是否大於生成後的圖片寬高 */ 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("水印圖片尺寸大於原圖,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,調用了array_key_exists函數,此函數要求 * php版本大於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 * * @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 * * @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; } } ?> 函數描述及例子 使用實例: < ?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"); // 指定縮放比例 $t->createImg(300,200); ?> setSrcImg("img/test.jpg"); $t->setMaskWord("test"); $t->setDstImgBorder(10,"#dddddd"); // 指定縮放比例 $t->createImg(50); ?> setSrcImg("img/test.jpg"); $t->setMaskWord("test"); // 指定固定寬高 $t->createImg(200,200); ?> setSrcImg("img/test.jpg"); $t->setDstImg("tmp/new_test.jpg"); $t->setMaskWord("test"); // 指定固定寬高 $t->createImg(200,200); ?> 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); ?> 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); ?> 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); ?>