Image.class.php | searchcode

/Admin/Lib/ORG/Image.class.php

https://github.com/keheng/dwz_thinkphp
PHP | 538 lines | 338 code | 21 blank | 179 comment | 62 complexity | d2c449c3fcfa154163c9577694ba66ba MD5 | raw file
Possible License(s): Apache-2.0, MPL-2.0-no-copyleft-exception

<?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>

// +----------------------------------------------------------------------

/**

 +------------------------------------------------------------------------------

 * 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;

        }

    }



    /**

     +----------------------------------------------------------

     * 显示服务器图像文件

     * 支持URL方式

     +----------------------------------------------------------

     * @static

     * @access public

     +----------------------------------------------------------

     * @param string $imgFile 图像文件名

     * @param string $text 文字字符串

     * @param string $width 图像宽度

     * @param string $height 图像高度

     +----------------------------------------------------------

     * @return void

     +----------------------------------------------------------

     */

    static function showImg($imgFile,$text='',$width=80,$height=30) {

        //获取图像文件信息

        $info = Image::getImageInfo($imgFile);

        if($info !== false) {

            $createFun  =   str_replace('/','createfrom',$info['mime']);

            $im = $createFun($imgFile);

            if($im) {

                $ImageFun= str_replace('/','',$info['mime']);

                if(!empty($text)) {

                    $tc  = imagecolorallocate($im, 0, 0, 0);

                    imagestring($im, 3, 5, 5, $text, $tc);

                }

                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 ;

            }

        }

        //获取或者创建图像文件失败则生成空白PNG图片

        $im  = imagecreatetruecolor($width, $height);

        $bgc = imagecolorallocate($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.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') {

		$code	=	rand_string($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)

    {

		$rand	=	range('a','z');

		shuffle($rand);

		$verifyCode	=	array_slice($rand,0,10);

        $letter = implode(" ",$verifyCode);

        $_SESSION['verifyCode'] = $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);

    }



	// 生成手机号码

	static public function buildPhone() {

	}

	// 生成邮箱图片

	static public function buildEmail($email,$rgb=array(),$filename='',$type='png') {

		$mail		=	explode('@',$email);

		$user		=	trim($mail[0]);

		$mail		=	strtolower(trim($mail[1]));

		$path		=	dirname(__FILE__).'/Mail/';

		if(is_file($path.$mail.'.png')) {

			$im	= imagecreatefrompng($path.$mail.'.png');

			$user_width = imagettfbbox(9, 0, dirname(__FILE__)."/Mail/tahoma.ttf", $user);

			$x_value = (200 - ($user_width[2] + 113));

			if(empty($rgb)) {

				$color = imagecolorallocate($im, 102, 104, 104);

			}else{

				$color = imagecolorallocate($im, $rgb[0], $rgb[1], $rgb[2]);

			}

			imagettftext($im, 9, 0, $x_value, 16, $color, dirname(__FILE__)."/Mail/tahoma.ttf", $user);

		}else{

			$user_width = imagettfbbox(9, 0, dirname(__FILE__)."/Mail/tahoma.ttf", $email);

			$width	=	$user_width[2]+15;

			$height	=	20;

			$im	=	imagecreate($width,20);

			$backColor = imagecolorallocate($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);

			if(empty($rgb)) {

				$color = imagecolorallocate($im, 102, 104, 104);

			}else{

				$color = imagecolorallocate($im, $rgb[0], $rgb[1], $rgb[2]);

			}

			imagettftext($im, 9, 0, 5, 16, $color, dirname(__FILE__)."/Mail/tahoma.ttf", $email);

			for($i=0;$i<25;$i++){

				imagesetpixel($im,mt_rand(0,$width),mt_rand(0,$height),$pointColor);

			}

		}

		Image::output($im,$type,$filename);

	}



    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

?>