/App/ThinkPHP/Lib/ORG/Util/Image.class.php
PHP | 576 lines | 346 code | 32 blank | 198 comment | 86 complexity | 601ed3c1ca72286ec73d70609526b4c3 MD5 | raw file
Possible License(s): Apache-2.0
- <?php
-
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: liu21st <liu21st@gmail.com>
- // +----------------------------------------------------------------------
- // $Id$
-
- /**
- +------------------------------------------------------------------------------
- * 图像操作类库
- +------------------------------------------------------------------------------
- * @category ORG
- * @package ORG
- * @subpackage Util
- * @author liu21st <liu21st@gmail.com>
- * @version $Id$
- +------------------------------------------------------------------------------
- */
- class Image extends Think {//类定义开始
-
- /**
- +----------------------------------------------------------
- * 取得图像信息
- *
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $image 图像文件名
- +----------------------------------------------------------
- * @return mixed
- +----------------------------------------------------------
- */
-
- static function getImageInfo($img) {
- $imageInfo = getimagesize($img);
- if ($imageInfo !== false) {
- $imageType = strtolower(substr(image_type_to_extension($imageInfo[2]), 1));
- $imageSize = filesize($img);
- $info = array(
- "width" => $imageInfo[0],
- "height" => $imageInfo[1],
- "type" => $imageType,
- "size" => $imageSize,
- "mime" => $imageInfo['mime']
- );
- return $info;
- } else {
- return false;
- }
- }
-
- /**
- +----------------------------------------------------------
- * 为图片添加水印
- +----------------------------------------------------------
- * @static public
- +----------------------------------------------------------
- * @param string $source 原文件名
- * @param string $water 水印图片
- * @param string $$savename 添加水印后的图片名
- * @param string $alpha 水印的透明度
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- * @throws ThinkExecption
- +----------------------------------------------------------
- */
- static public function water($source, $water, $savename=null, $alpha=80) {
- //检查文件是否存在
- if (!file_exists($source) || !file_exists($water))
- return false;
-
- //图片信息
- $sInfo = self::getImageInfo($source);
- $wInfo = self::getImageInfo($water);
-
- //如果图片小于水印图片,不生成图片
- if ($sInfo["width"] < $wInfo["width"] || $sInfo['height'] < $wInfo['height'])
- return false;
-
- //建立图像
- $sCreateFun = "imagecreatefrom" . $sInfo['type'];
- $sImage = $sCreateFun($source);
- $wCreateFun = "imagecreatefrom" . $wInfo['type'];
- $wImage = $wCreateFun($water);
-
- //设定图像的混色模式
- imagealphablending($wImage, true);
-
- //图像位置,默认为右下角右对齐
- $posY = $sInfo["height"] - $wInfo["height"];
- $posX = $sInfo["width"] - $wInfo["width"];
-
- //生成混合图像
- imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo['width'], $wInfo['height'], $alpha);
-
- //输出图像
- $ImageFun = 'Image' . $sInfo['type'];
- //如果没有给出保存文件名,默认为原图像名
- if (!$savename) {
- $savename = $source;
- @unlink($source);
- }
- //保存图像
- $ImageFun($sImage, $savename);
- imagedestroy($sImage);
- }
-
- function showImg($imgFile, $text='', $x='10', $y='10', $alpha='50') {
- //获取图像文件信息
- //2007/6/26 增加图片水印输出,$text为图片的完整路径即可
- $info = Image::getImageInfo($imgFile);
- if ($info !== false) {
- $createFun = str_replace('/', 'createfrom', $info['mime']);
- $im = $createFun($imgFile);
- if ($im) {
- $ImageFun = str_replace('/', '', $info['mime']);
- //水印开始
- if (!empty($text)) {
- $tc = imagecolorallocate($im, 0, 0, 0);
- if (is_file($text) && file_exists($text)) {//判断$text是否是图片路径
- // 取得水印信息
- $textInfo = Image::getImageInfo($text);
- $createFun2 = str_replace('/', 'createfrom', $textInfo['mime']);
- $waterMark = $createFun2($text);
- //$waterMark=imagecolorallocatealpha($text,255,255,0,50);
- $imgW = $info["width"];
- $imgH = $info["width"] * $textInfo["height"] / $textInfo["width"];
- //$y = ($info["height"]-$textInfo["height"])/2;
- //设置水印的显示位置和透明度支持各种图片格式
- imagecopymerge($im, $waterMark, $x, $y, 0, 0, $textInfo['width'], $textInfo['height'], $alpha);
- } else {
- imagestring($im, 80, $x, $y, $text, $tc);
- }
- //ImageDestroy($tc);
- }
- //水印结束
- if ($info['type'] == 'png' || $info['type'] == 'gif') {
- imagealphablending($im, FALSE); //取消默认的混色模式
- imagesavealpha($im, TRUE); //设定保存完整的 alpha 通道信息
- }
- Header("Content-type: " . $info['mime']);
- $ImageFun($im);
- @ImageDestroy($im);
- return;
- }
-
- //保存图像
- $ImageFun($sImage, $savename);
- imagedestroy($sImage);
- //获取或者创建图像文件失败则生成空白PNG图片
- $im = imagecreatetruecolor(80, 30);
- $bgc = imagecolorallocate($im, 255, 255, 255);
- $tc = imagecolorallocate($im, 0, 0, 0);
- imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
- imagestring($im, 4, 5, 5, "no pic", $tc);
- Image::output($im);
- return;
- }
- }
-
- /**
- +----------------------------------------------------------
- * 生成缩略图
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $image 原图
- * @param string $type 图像格式
- * @param string $thumbname 缩略图文件名
- * @param string $maxWidth 宽度
- * @param string $maxHeight 高度
- * @param string $position 缩略图保存目录
- * @param boolean $interlace 启用隔行扫描
- +----------------------------------------------------------
- * @return void
- +----------------------------------------------------------
- */
- static function thumb($image, $thumbname, $type='', $maxWidth=200, $maxHeight=50, $interlace=true) {
- // 获取原图信息
- $info = Image::getImageInfo($image);
- if ($info !== false) {
- $srcWidth = $info['width'];
- $srcHeight = $info['height'];
- $type = empty($type) ? $info['type'] : $type;
- $type = strtolower($type);
- $interlace = $interlace ? 1 : 0;
- unset($info);
- $scale = min($maxWidth / $srcWidth, $maxHeight / $srcHeight); // 计算缩放比例
- if ($scale >= 1) {
- // 超过原图大小不再缩略
- $width = $srcWidth;
- $height = $srcHeight;
- } else {
- // 缩略图尺寸
- $width = (int) ($srcWidth * $scale);
- $height = (int) ($srcHeight * $scale);
- }
-
- // 载入原图
- $createFun = 'ImageCreateFrom' . ($type == 'jpg' ? 'jpeg' : $type);
- $srcImg = $createFun($image);
-
- //创建缩略图
- if ($type != 'gif' && function_exists('imagecreatetruecolor'))
- $thumbImg = imagecreatetruecolor($width, $height);
- else
- $thumbImg = imagecreate($width, $height);
-
- // 复制图片
- if (function_exists("ImageCopyResampled"))
- imagecopyresampled($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);
- else
- imagecopyresized($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);
- if ('gif' == $type || 'png' == $type) {
- //imagealphablending($thumbImg, false);//取消默认的混色模式
- //imagesavealpha($thumbImg,true);//设定保存完整的 alpha 通道信息
- $background_color = imagecolorallocate($thumbImg, 0, 255, 0); // 指派一个绿色
- imagecolortransparent($thumbImg, $background_color); // 设置为透明色,若注释掉该行则输出绿色的图
- }
-
- // 对jpeg图形设置隔行扫描
- if ('jpg' == $type || 'jpeg' == $type)
- imageinterlace($thumbImg, $interlace);
-
- //$gray=ImageColorAllocate($thumbImg,255,0,0);
- //ImageString($thumbImg,2,5,5,"ThinkPHP",$gray);
- // 生成图片
- $imageFun = 'image' . ($type == 'jpg' ? 'jpeg' : $type);
- $imageFun($thumbImg, $thumbname);
- imagedestroy($thumbImg);
- imagedestroy($srcImg);
- return $thumbname;
- }
- return false;
- }
-
- /**
- +----------------------------------------------------------
- * 根据给定的字符串生成图像
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $string 字符串
- * @param string $size 图像大小 width,height 或者 array(width,height)
- * @param string $font 字体信息 fontface,fontsize 或者 array(fontface,fontsize)
- * @param string $type 图像格式 默认PNG
- * @param integer $disturb 是否干扰 1 点干扰 2 线干扰 3 复合干扰 0 无干扰
- * @param bool $border 是否加边框 array(color)
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- static function buildString($string, $rgb=array(), $filename='', $type='png', $disturb=1, $border=true) {
- if (is_string($size))
- $size = explode(',', $size);
- $width = $size[0];
- $height = $size[1];
- if (is_string($font))
- $font = explode(',', $font);
- $fontface = $font[0];
- $fontsize = $font[1];
- $length = strlen($string);
- $width = ($length * 9 + 10) > $width ? $length * 9 + 10 : $width;
- $height = 22;
- if ($type != 'gif' && function_exists('imagecreatetruecolor')) {
- $im = @imagecreatetruecolor($width, $height);
- } else {
- $im = @imagecreate($width, $height);
- }
- if (empty($rgb)) {
- $color = imagecolorallocate($im, 102, 104, 104);
- } else {
- $color = imagecolorallocate($im, $rgb[0], $rgb[1], $rgb[2]);
- }
- $backColor = imagecolorallocate($im, 255, 255, 255); //背景色(随机)
- $borderColor = imagecolorallocate($im, 100, 100, 100); //边框色
- $pointColor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)); //点颜色
-
- @imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
- @imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
- @imagestring($im, 5, 5, 3, $string, $color);
- if (!empty($disturb)) {
- // 添加干扰
- if ($disturb = 1 || $disturb = 3) {
- for ($i = 0; $i < 25; $i++) {
- imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $pointColor);
- }
- } elseif ($disturb = 2 || $disturb = 3) {
- for ($i = 0; $i < 10; $i++) {
- imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $pointColor);
- }
- }
- }
- Image::output($im, $type, $filename);
- }
-
- /**
- +----------------------------------------------------------
- * 生成图像验证码
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $length 位数
- * @param string $mode 类型
- * @param string $type 图像格式
- * @param string $width 宽度
- * @param string $height 高度
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- static function buildImageVerify($length=4, $mode=1, $type='png', $width=48, $height=22, $verifyName='verify') {
- import('ORG.Util.String');
- $randval = String::rand_string($length, $mode);
- $_SESSION[$verifyName] = md5($randval);
- $width = ($length * 10 + 10) > $width ? $length * 10 + 10 : $width;
- if ($type != 'gif' && function_exists('imagecreatetruecolor')) {
- $im = @imagecreatetruecolor($width, $height);
- } else {
- $im = @imagecreate($width, $height);
- }
- $r = Array(225, 255, 255, 223);
- $g = Array(225, 236, 237, 255);
- $b = Array(225, 236, 166, 125);
- $key = mt_rand(0, 3);
-
- $backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]); //背景色(随机)
- $borderColor = imagecolorallocate($im, 100, 100, 100); //边框色
- $pointColor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)); //点颜色
-
- @imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
- @imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
- $stringColor = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
- // 干扰
- for ($i = 0; $i < 10; $i++) {
- $fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
- imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $fontcolor);
- }
- for ($i = 0; $i < 25; $i++) {
- $fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
- imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $pointColor);
- }
- for ($i = 0; $i < $length; $i++) {
- imagestring($im, 5, $i * 10 + 5, mt_rand(1, 8), $randval{$i}, $stringColor);
- }
- // @imagestring($im, 5, 5, 3, $randval, $stringColor);
- Image::output($im, $type);
- }
-
- // 中文验证码
- static function GBVerify($length=4, $type='png', $width=180, $height=50, $fontface='simhei.ttf', $verifyName='verify') {
- import('ORG.Util.String');
- $code = String::rand_string($length, 4);
- $width = ($length * 45) > $width ? $length * 45 : $width;
- $_SESSION[$verifyName] = md5($code);
- $im = imagecreatetruecolor($width, $height);
- $borderColor = imagecolorallocate($im, 100, 100, 100); //边框色
- $bkcolor = imagecolorallocate($im, 250, 250, 250);
- imagefill($im, 0, 0, $bkcolor);
- @imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
- // 干扰
- for ($i = 0; $i < 15; $i++) {
- $fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
- imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $fontcolor);
- }
- for ($i = 0; $i < 255; $i++) {
- $fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
- imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $fontcolor);
- }
- if (!is_file($fontface)) {
- $fontface = dirname(__FILE__) . "/" . $fontface;
- }
- for ($i = 0; $i < $length; $i++) {
- $fontcolor = imagecolorallocate($im, mt_rand(0, 120), mt_rand(0, 120), mt_rand(0, 120)); //这样保证随机出来的颜色较深。
- $codex = msubstr($code, $i, 1);
- imagettftext($im, mt_rand(16, 20), mt_rand(-60, 60), 40 * $i + 20, mt_rand(30, 35), $fontcolor, $fontface, $codex);
- }
- Image::output($im, $type);
- }
-
- /**
- +----------------------------------------------------------
- * 把图像转换成字符显示
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $image 要显示的图像
- * @param string $type 图像类型,默认自动获取
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- static function showASCIIImg($image, $string='', $type='') {
- $info = Image::getImageInfo($image);
- if ($info !== false) {
- $type = empty($type) ? $info['type'] : $type;
- unset($info);
- // 载入原图
- $createFun = 'ImageCreateFrom' . ($type == 'jpg' ? 'jpeg' : $type);
- $im = $createFun($image);
- $dx = imagesx($im);
- $dy = imagesy($im);
- $i = 0;
- $out = '<span style="padding:0px;margin:0;line-height:100%;font-size:1px;">';
- set_time_limit(0);
- for ($y = 0; $y < $dy; $y++) {
- for ($x = 0; $x < $dx; $x++) {
- $col = imagecolorat($im, $x, $y);
- $rgb = imagecolorsforindex($im, $col);
- $str = empty($string) ? '*' : $string[$i++];
- $out .= sprintf('<span style="margin:0px;color:#%02x%02x%02x">' . $str . '</span>', $rgb['red'], $rgb['green'], $rgb['blue']);
- }
- $out .= "<br>\n";
- }
- $out .= '</span>';
- imagedestroy($im);
- return $out;
- }
- return false;
- }
-
- /**
- +----------------------------------------------------------
- * 生成高级图像验证码
- +----------------------------------------------------------
- * @static
- * @access public
- +----------------------------------------------------------
- * @param string $type 图像格式
- * @param string $width 宽度
- * @param string $height 高度
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- static function showAdvVerify($type='png', $width=180, $height=40, $verifyName='verifyCode') {
- $rand = range('a', 'z');
- shuffle($rand);
- $verifyCode = array_slice($rand, 0, 10);
- $letter = implode(" ", $verifyCode);
- $_SESSION[$verifyName] = $verifyCode;
- $im = imagecreate($width, $height);
- $r = array(225, 255, 255, 223);
- $g = array(225, 236, 237, 255);
- $b = array(225, 236, 166, 125);
- $key = mt_rand(0, 3);
- $backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]);
- $borderColor = imagecolorallocate($im, 100, 100, 100); //边框色
- imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
- imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
- $numberColor = imagecolorallocate($im, 255, rand(0, 100), rand(0, 100));
- $stringColor = imagecolorallocate($im, rand(0, 100), rand(0, 100), 255);
- // 添加干扰
- /*
- for($i=0;$i<10;$i++){
- $fontcolor=imagecolorallocate($im,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
- imagearc($im,mt_rand(-10,$width),mt_rand(-10,$height),mt_rand(30,300),mt_rand(20,200),55,44,$fontcolor);
- }
- for($i=0;$i<255;$i++){
- $fontcolor=imagecolorallocate($im,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
- imagesetpixel($im,mt_rand(0,$width),mt_rand(0,$height),$fontcolor);
- } */
- imagestring($im, 5, 5, 1, "0 1 2 3 4 5 6 7 8 9", $numberColor);
- imagestring($im, 5, 5, 20, $letter, $stringColor);
- Image::output($im, $type);
- }
-
- /**
- +----------------------------------------------------------
- * 生成UPC-A条形码
- +----------------------------------------------------------
- * @static
- +----------------------------------------------------------
- * @param string $type 图像格式
- * @param string $type 图像格式
- * @param string $lw 单元宽度
- * @param string $hi 条码高度
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- static function UPCA($code, $type='png', $lw=2, $hi=100) {
- static $Lencode = array('0001101', '0011001', '0010011', '0111101', '0100011',
- '0110001', '0101111', '0111011', '0110111', '0001011');
- static $Rencode = array('1110010', '1100110', '1101100', '1000010', '1011100',
- '1001110', '1010000', '1000100', '1001000', '1110100');
- $ends = '101';
- $center = '01010';
- /* UPC-A Must be 11 digits, we compute the checksum. */
- if (strlen($code) != 11) {
- die("UPC-A Must be 11 digits.");
- }
- /* Compute the EAN-13 Checksum digit */
- $ncode = '0' . $code;
- $even = 0;
- $odd = 0;
- for ($x = 0; $x < 12; $x++) {
- if ($x % 2) {
- $odd += $ncode[$x];
- } else {
- $even += $ncode[$x];
- }
- }
- $code.= ( 10 - (($odd * 3 + $even) % 10)) % 10;
- /* Create the bar encoding using a binary string */
- $bars = $ends;
- $bars.=$Lencode[$code[0]];
- for ($x = 1; $x < 6; $x++) {
- $bars.=$Lencode[$code[$x]];
- }
- $bars.=$center;
- for ($x = 6; $x < 12; $x++) {
- $bars.=$Rencode[$code[$x]];
- }
- $bars.=$ends;
- /* Generate the Barcode Image */
- if ($type != 'gif' && function_exists('imagecreatetruecolor')) {
- $im = imagecreatetruecolor($lw * 95 + 30, $hi + 30);
- } else {
- $im = imagecreate($lw * 95 + 30, $hi + 30);
- }
- $fg = ImageColorAllocate($im, 0, 0, 0);
- $bg = ImageColorAllocate($im, 255, 255, 255);
- ImageFilledRectangle($im, 0, 0, $lw * 95 + 30, $hi + 30, $bg);
- $shift = 10;
- for ($x = 0; $x < strlen($bars); $x++) {
- if (($x < 10) || ($x >= 45 && $x < 50) || ($x >= 85)) {
- $sh = 10;
- } else {
- $sh = 0;
- }
- if ($bars[$x] == '1') {
- $color = $fg;
- } else {
- $color = $bg;
- }
- ImageFilledRectangle($im, ($x * $lw) + 15, 5, ($x + 1) * $lw + 14, $hi + 5 + $sh, $color);
- }
- /* Add the Human Readable Label */
- ImageString($im, 4, 5, $hi - 5, $code[0], $fg);
- for ($x = 0; $x < 5; $x++) {
- ImageString($im, 5, $lw * (13 + $x * 6) + 15, $hi + 5, $code[$x + 1], $fg);
- ImageString($im, 5, $lw * (53 + $x * 6) + 15, $hi + 5, $code[$x + 6], $fg);
- }
- ImageString($im, 4, $lw * 95 + 17, $hi - 5, $code[11], $fg);
- /* Output the Header and Content. */
- Image::output($im, $type);
- }
-
- static function output($im, $type='png', $filename='') {
- header("Content-type: image/" . $type);
- $ImageFun = 'image' . $type;
- if (empty($filename)) {
- $ImageFun($im);
- } else {
- $ImageFun($im, $filename);
- }
- imagedestroy($im);
- }
-
- }
-
- //类定义结束
- ?>