建站公司/互联网营销师培训课程

<?php
/*
图片处理函数功能：缩放、剪切、相框、水印、锐化、旋转、翻转、透明度、反色
处理并保存历史记录的思路：当有图片有改动时自动生成一张新图片，命名方式可以考虑在原图片的基础上加上步骤，例如：图片名称+__第几步
*/
class picture
{var $PICTURE_URL;//要处理的图片var $DEST_URL="temp__01.jpg";//生成目标图片位置var $PICTURE_CREATE;//要创建的图片var $TURE_COLOR;//新建一个真彩图象var $PICTURE_WIDTH;//原图片宽度var $PICTURE_HEIGHT;//原图片高度/*
水印的类型，默认的为水印文字
*/var $MARK_TYPE=1;var $WORD;//经过UTF-8后的文字var $WORD_X;//文字横坐标var $WORD_Y;//文字纵坐标var $FONT_TYPE;//字体类型var $FONT_SIZE="12";//字体大小var $FONT_WORD;//文字var $ANGLE=0;//文字的角度，默认为0var $FONT_COLOR="#000000";//文字颜色var $FONT_PATH="font/simkai.ttf";//字体库，默认为宋体var $FORCE_URL;//水印图片var $FORCE_X=0;//水印横坐标var $FORCE_Y=0;//水印纵坐标var $FORCE_START_X=0;//切起水印的图片横坐标var $FORCE_START_Y=0;//切起水印的图片纵坐标var $PICTURE_TYPE;//图片类型var $PICTURE_MIME;//输出的头部/*
缩放比例为1的话就按缩放高度和宽度缩放
*/var $ZOOM=1;//缩放类型var $ZOOM_MULTIPLE;//缩放比例var $ZOOM_WIDTH;//缩放宽度var $ZOOM_HEIGHT;//缩放高度/*
裁切，按比例和固定长度、宽度
*/var $CUT_TYPE=1;//裁切类型var $CUT_X=0;//裁切的横坐标var $CUT_Y=0;//裁切的纵坐标var $CUT_;//裁切的宽度var $CUT_HEIGHT=100;//裁切的高度/*
锐化
*/var $SHARP="7.0";//锐化程度/*
透明度处理
*/var $ALPHA='100';//透明度在0-127之间var $ALPHA_X="90";var $ALPHA_Y="50";/*
任意角度旋转
*/var $CIRCUMROTATE="90.0";//注意，必须为浮点数/*
出错信息
*/var $ERROR=array('unalviable'=>'没有找到相关图片!');/*
构造函数：函数初始化
*/function __construct($PICTURE_URL){$this->get_info($PICTURE_URL);}function get_info($PICTURE_URL){/*处理原图片的信息,先检测图片是否存在,不存在则给出相应的信息*/@$SIZE=getimagesize($PICTURE_URL);if(!$SIZE){exit($this->ERROR['unalviable']);}//得到原图片的信息类型、宽度、高度$this->PICTURE_MIME=$SIZE['mime'];$this->PICTURE_;$this->PICTURE_HEIGHT=$SIZE[1];//创建图片switch($SIZE[2]){case 1:$this->PICTURE_CREATE=imagecreatefromgif($PICTURE_URL);$this->PICTURE_TYPE="imagejpeg";$this->PICTURE_EXT="jpg";break;case 2:$this->PICTURE_CREATE=imagecreatefromjpeg($PICTURE_URL);$this->PICTURE_TYPE="imagegif";$this->PICTURE_EXT="gif";break;case 3:$this->PICTURE_CREATE=imagecreatefrompng($PICTURE_URL);$this->PICTURE_TYPE="imagepng";$this->PICTURE_EXT="png";break;}    /*文字颜色转换16进制转换成10进制*/preg_match_all("/([0-f]){2,2}/i",$this->FONT_COLOR,$MATCHES);if(count($MATCHES)==3){$this->RED=hexdec($MATCHES[0][0]);$this->GREEN=hexdec($MATCHES[0][1]);$this->BLUE=hexdec($MATCHES[0][2]);}}#end of __construct/*将16进制的颜色转换成10进制的（R，G，B）*/function hex2dec(){preg_match_all("/([0-f]){2,2}/i",$this->FONT_COLOR,$MATCHES);if(count($MATCHES)==3){$this->RED=hexdec($MATCHES[0][0]);$this->GREEN=hexdec($MATCHES[0][1]);$this->BLUE=hexdec($MATCHES[0][2]);}}//缩放类型function zoom_type($ZOOM_TYPE){$this->ZOOM=$ZOOM_TYPE;}//对图片进行缩放,如果不指定高度和宽度就进行缩放function zoom(){//缩放的大小if($this->ZOOM==0){$this->ZOOM_;gt;PICTURE_WIDTH * $this->ZOOM_MULTIPLE;$this->ZOOM_HEIGHT=$this->PICTURE_HEIGHT * $this->ZOOM_MULTIPLE;}//新建一个真彩图象$this->TRUE_COLOR=imagecreatetruecolor($this->ZOOM_WIDTH,$this->ZOOM_HEIGHT);$WHITE=imagecolorallocate($this->TRUE_COLOR,255,255,255);imagefilledrectangle($this->TRUE_COLOR,0,0,$this->ZOOM_WIDTH,$this->ZOOM_HEIGHT,$WHITE);imagecopyresized($this->TRUE_COLOR,$this->PICTURE_CREATE,0,0,0,0,$this->ZOOM_WIDTH,$this->ZOOM_HEIGHT,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);}#end of zoom//裁切图片,按坐标或自动function cut(){$this->TRUE_COLOR=imagecreatetruecolor($this->CUT_WIDTH,$this->CUT_WIDTH);imagecopy($this->TRUE_COLOR,$this->PICTURE_CREATE, 0, 0, $this->CUT_X, $this->CUT_Y,$this->CUT_WIDTH,$this->CUT_HEIGHT);}#end of cut/*在图片上放文字或图片水印文字*/function _mark_text(){$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$this->WORD=mb_convert_encoding($this->FONT_WORD,'utf-8','gb2312');/*取得使用 TrueType 字体的文本的范围*/$TEMP = imagettfbbox($this->FONT_SIZE,0,$this->FONT_PATH,$this->WORD);$WORD_LENGTH=strlen($this->WORD);$WORD_WIDTH =$TEMP[2] - $TEMP[6];$WORD_HEIGHT =$TEMP[3] - $TEMP[7];/*文字水印的默认位置为右下角*/if($this->WORD_X==""){$this->WORD_X=$this->PICTURE_WIDTH-$WORD_WIDTH;}if($this->WORD_Y==""){$this->WORD_Y=$this->PICTURE_HEIGHT-$WORD_HEIGHT;}imagesettile($this->TRUE_COLOR,$this->PICTURE_CREATE);imagefilledrectangle($this->TRUE_COLOR,0,0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT,IMG_COLOR_TILED);$TEXT2=imagecolorallocate($this->TRUE_COLOR,$this->RED,$this->GREEN,$this->Blue);imagettftext($this->TRUE_COLOR,$this->FONT_SIZE,$this->ANGLE,$this->WORD_X,$this->WORD_Y,$TEXT2,$this->FONT_PATH,$this->WORD);}/*水印图片*/
function _mark_picture()
{/*获取水印图片的信息*/@$SIZE=getimagesize($this->FORCE_URL);if(!$SIZE){exit($this->ERROR['unalviable']);}$FORCE_PICTURE_;$FORCE_PICTURE_HEIGHT=$SIZE[1];//创建水印图片switch($SIZE[2]){case 1:$FORCE_PICTURE_CREATE=imagecreatefromgif($this->FORCE_URL);$FORCE_PICTURE_TYPE="gif";break;case 2:$FORCE_PICTURE_CREATE=imagecreatefromjpeg($this->FORCE_URL);$FORCE_PICTURE_TYPE="jpg";break;case 3:$FORCE_PICTURE_CREATE=imagecreatefrompng($this->FORCE_URL);$FORCE_PICTURE_TYPE="png";break;}
/*判断水印图片的大小，并生成目标图片的大小，如果水印比图片大，则生成图片大小为水印图片的大小。否则生成的图片大小为原图片大小。
*/$this->NEW_PICTURE=$this->PICTURE_CREATE;if($FORCE_PICTURE_WIDTH>$this->PICTURE_WIDTH){$CREATE_;gt;FORCE_START_X;}else{$CREATE_;gt;PICTURE_WIDTH;}if($FORCE_PICTURE_HEIGHT>$this->PICTURE_HEIGHT){$CREATE_HEIGHT=$FORCE_PICTURE_HEIGHT-$this->FORCE_START_Y;}else{$CREATE_HEIGHT=$this->PICTURE_HEIGHT;}/*创建一个画布*/$NEW_PICTURE_CREATE=imagecreatetruecolor($CREATE_WIDTH,$CREATE_HEIGHT);$WHITE=imagecolorallocate($NEW_PICTURE_CREATE,255,255,255);/*将背景图拷贝到画布中*/imagecopy($NEW_PICTURE_CREATE, $this->PICTURE_CREATE, 0, 0, 0, 0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);/*将目标图片拷贝到背景图片上*/imagecopy($NEW_PICTURE_CREATE, $FORCE_PICTURE_CREATE, $this->FORCE_X, $this->FORCE_Y, $this->FORCE_START_X, $this->FORCE_START_Y,$FORCE_PICTURE_WIDTH,$FORCE_PICTURE_HEIGHT);$this->TRUE_COLOR=$NEW_PICTURE_CREATE;
}
#end of markfunction alpha_()
{$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$rgb="#CDCDCD";$tran_color="#000000";for($j=0;$j<=$this->PICTURE_HEIGHT-1;$j++){for ($i=0;$i<=$this->PICTURE_WIDTH-1;$i++){$rgb = imagecolorat($this->PICTURE_CREATE,$i,$j);$r = ($rgb >> 16) & 0xFF;$g = ($rgb >> 8) & 0xFF;$b = $rgb & 0xFF;$now_color=imagecolorallocate($this->PICTURE_CREATE,$r,$g,$b);if ($now_color==$tran_color){continue;}else{$color=imagecolorallocatealpha($this->PICTURE_CREATE,$r,$g,$b,$ALPHA);imagesetpixel($this->PICTURE_CREATE,$ALPHA_X+$i,$ALPHA_Y+$j,$color);}$this->TRUE_COLOR=$this->PICTURE_CREATE;}}
}/*
图片旋转:
沿y轴旋转
*/
function turn_y()
{$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);for ($x = 0; $x < $this->PICTURE_WIDTH; $x++){imagecopy($this->TRUE_COLOR, $this->PICTURE_CREATE, $this->PICTURE_WIDTH - $x - 1, 0, $x, 0, 1, $this->PICTURE_HEIGHT);}
}
/*
沿X轴旋转
*/
function turn_x()
{$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);for ($y = 0; $y < $this->PICTURE_HEIGHT; $y++){imagecopy($this->TRUE_COLOR, $this->PICTURE_CREATE, 0, $this->PICTURE_HEIGHT - $y - 1, 0, $y, $this->PICTURE_WIDTH, 1);}
}/*
任意角度旋转
*/
function turn()
{$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);imageCopyResized($this->TRUE_COLOR,$this->PICTURE_CREATE,0,0,0,0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$WHITE=imagecolorallocate($this->TRUE_COLOR,255,255,255);$this->TRUE_COLOR=imagerotate ($this->TRUE_COLOR, $this->CIRCUMROTATE, $WHITE);
}
/*
图片锐化
*/
function sharp()
{$this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$cnt=0;for ($x=0; $x<$this->PICTURE_WIDTH; $x++){for ($y=0; $y<$this->PICTURE_HEIGHT; $y++){$src_clr1 = imagecolorsforindex($this->TRUE_COLOR, imagecolorat($this->PICTURE_CREATE, $x-1, $y-1));$src_clr2 = imagecolorsforindex($this->TRUE_COLOR, imagecolorat($this->PICTURE_CREATE, $x, $y));$r = intval($src_clr2["red"]+$this->SHARP*($src_clr2["red"]-$src_clr1["red"]));$g = intval($src_clr2["green"]+$this->SHARP*($src_clr2["green"]-$src_clr1["green"]));$b = intval($src_clr2["blue"]+$this->SHARP*($src_clr2["blue"]-$src_clr1["blue"]));$r = min(255, max($r, 0));$g = min(255, max($g, 0));$b = min(255, max($b, 0));if (($DST_CLR=imagecolorexact($this->PICTURE_CREATE, $r, $g, $b))==-1)$DST_CLR = imagecolorallocate($this->PICTURE_CREATE, $r, $g, $b);$cnt++;if ($DST_CLR==-1) die("color allocate faile at $x, $y ($cnt).");imagesetpixel($this->TRUE_COLOR, $x, $y, $DST_CLR);}}
}/*将图片反色处理??
*/
function return_color()
{/*创建一个画布*/$NEW_PICTURE_CREATE=imagecreate($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$WHITE=imagecolorallocate($NEW_PICTURE_CREATE,255,255,255);/*将背景图拷贝到画布中*/imagecopy($NEW_PICTURE_CREATE, $this->PICTURE_CREATE, 0, 0, 0, 0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);$this->TRUE_COLOR=$NEW_PICTURE_CREATE;
}/*
生成目标图片并显示
*/
function show()
{// 判断浏览器,若是IE就不发送头if(isset($_SERVER['HTTP_USER_AGENT'])){$ua = strtoupper($_SERVER['HTTP_USER_AGENT']);if(!preg_match('/^.*MSIE.*\)$/i',$ua)){header("Content-type:$this->PICTURE_MIME");}}$OUT=$this->PICTURE_TYPE;$OUT($this->TRUE_COLOR);
}/*
生成目标图片并保存
*/
function save_picture()
{// 以 JPEG 格式将图像输出到浏览器或文件$OUT=$this->PICTURE_TYPE;if(function_exists($OUT)){// 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:$this->PICTURE_MIME");}}if(!$this->TRUE_COLOR){exit($this->ERROR['unavilable']);}else{$OUT($this->TRUE_COLOR,$this->DEST_URL);$OUT($this->TRUE_COLOR);}}
}
/*
析构函数：释放图片
*/
function __destruct()
{
/*释放图片*/imagedestroy($this->TRUE_COLOR);imagedestroy($this->PICTURE_CREATE);
}
#end of class
}
?>