Discuzx

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<? php

//DZ IMAGE类包含变量含义 >Haierspi
$imagelib = 0;
//水印模式 0为使用GD库 1为外置IM处理
$imageimpath = ”;
//IM执行路径
$thumbstatus = 0;
//缩略图功能状态 0功能不启用 1自动缩略图 2指定大小的缩略图
$thumbwidth = ”;;
//缩略图宽度
$thumbheight = ”;;
//缩略图高度
$watermarkstatus = ”;;
//水印状态
/*
0 不启用缩略图
以下是各个位置对应的值:
1 2 3
4 5 6
7 8 9
比如值为1 则在图片左上角添加水印
*/
$watermarkminwidth = 300;
$watermarkminheight = 300;
// 水印功能开启的最小宽度和最小高度 当低于这个值时 不启用水印
$watermarktrans = 50;
//水印效果融合度 这个对GIF图片有效
$watermarkquality = 100;
//水印图片压缩质量


$watermarktype = 1;
//水印类型 0 gif ;1 PNG ;2 文本水印
$watermarktext = array();
//文字水印的一些参数 这个变量是ARRAY 值对应以下:
$watermarktext[text] = ”;
//文字水印内容
$watermarktext[fontpath] = ”;
//文字水印字体路径
$watermarktext[size] = ”;
//文字水印字体大小
$watermarktext[angle] = ”;
//文字水印字体角度
$watermarktext[color] = ”;
//文字水印字体颜色
$watermarktext[shadowx] = ”;
//文字水印投影X偏移
$watermarktext[shadowy] = ”;
//文字水印投影Y偏移
$watermarktext[shadowcolor] = ”;
//文字水印投影颜色

//IM 变量含义 略… 自己想吧 呵呵


class Image {
    var $attachinfo = '';
    var $srcfile = '';
    var $targetfile = '';
    var $imagecreatefromfunc = '';
    var $imagefunc = '';
    var $attach = array();
    var $animatedgif = 0;

    function Image($srcfile, $targetfile, $attach = array()) {
            global $imagelib, $watermarktext;
            $this - > srcfile = $srcfile;
            $this - > targetfile = $targetfile;
            $this - > attach = $attach;
            $this - > attachinfo = @getimagesize($targetfile); //返回图片信息
            if (!$imagelib) {
                switch ($this - > attachinfo['mime']) {
                    case 'image/jpeg':
                        $this - > imagecreatefromfunc = function_exists('imagecreatefromjpeg') ? 'imagecreatefromjpeg' : '';
                        $this - > imagefunc = function_exists('imagejpeg') ? 'imagejpeg' : '';
                        break;
                    case 'image/gif':
                        $this - > imagecreatefromfunc = function_exists('imagecreatefromgif') ? 'imagecreatefromgif' : '';
                        $this - > imagefunc = function_exists('imagegif') ? 'imagegif' : '';
                        break;
                    case 'image/png':
                        $this - > imagecreatefromfunc = function_exists('imagecreatefrompng') ? 'imagecreatefrompng' : '';
                        $this - > imagefunc = function_exists('imagepng') ? 'imagepng' : '';
                        break;
                }
            } else {
                $this - > imagecreatefromfunc = $this - > imagefunc = TRUE;
            }
            $this - > attach['size'] = emptyempty($this - > attach['size']) ? @filesize($targetfile) : $this - > attach['size'];
            //取得图像大小
            if ($this - > attachinfo['mime'] == 'image/gif') {
                $fp = fopen($targetfile, 'rb');
                $targetfilecontent = fread($fp, $this - > attach['size']);
                fclose($fp);
                $this - > animatedgif = strpos($targetfilecontent, 'NETSCAPE2.0') === FALSE ? 0 : 1;
                //动画的GIF 里确实有 “NETSCAPE2.0” 这个字符
                //静态GIF 里没有 “NETSCAPE2.0” 字符,哈哈 郁闷了我好长时间
            }
        }
        //缩略图函数
    function Thumb($thumbwidth, $thumbheight, $preview = 0) {
            global $imagelib, $imageimpath, $thumbstatus, $watermarkstatus;
            //是否执行水印功能 $imageimpath 这个是ImageMagick的安装路径
            $imagelib && $imageimpath ? $this - > Thumb_IM($thumbwidth, $thumbheight, $preview) : $this - > Thumb_GD($thumbwidth, $thumbheight, $preview);
            if ($thumbstatus == 2 && $watermarkstatus) {
                $this - > Image($this - > srcfile, $this - > targetfile, $this - > attach);
                $this - > attach['size'] = filesize($this - > targetfile);
            }
        }
        //水印函数
    function Watermark($preview = 0) {
            global $imagelib, $imageimpath, $watermarktype, $watermarktext, $watermarkminwidth, $watermarkminheight;
            if (($watermarkminwidth && $this - > attachinfo[0] <= $watermarkminwidth && $watermarkminheight && $this - > attachinfo[1] <= $watermarkminheight) || ($watermarktype == 2 && (!file_exists($watermarktext['fontpath']) || !is_file($watermarktext['fontpath'])))) {
                return;
            }
            $imagelib && $imageimpath ? $this - > Watermark_IM($preview) : $this - > Watermark_GD($preview);
        }
        //GD库函数
    function Thumb_GD($thumbwidth, $thumbheight, $preview = 0) {
        global $thumbstatus;
        if ($thumbstatus && function_exists('imagecreatetruecolor') && function_exists('imagecopyresampled') && function_exists('imagejpeg')) {
            $imagecreatefromfunc = $this - > imagecreatefromfunc;
            $imagefunc = $thumbstatus == 1 ? 'imagejpeg' : $this - > imagefunc;
            list($img_w, $img_h) = $this - > attachinfo;
            if (!$this - > animatedgif && ($img_w >= $thumbwidth || $img_h >= $thumbheight)) {
                $attach_photo = $imagecreatefromfunc($this - > targetfile);
                $x_ratio = $thumbwidth / $img_w;
                $y_ratio = $thumbheight / $img_h;
                if (($x_ratio * $img_h) < $thumbheight) {
                    $thumb['height'] = ceil($x_ratio * $img_h);
                    $thumb['width'] = $thumbwidth;
                } else {
                    $thumb['width'] = ceil($y_ratio * $img_w);
                    $thumb['height'] = $thumbheight;
                }
                $targetfile = !$preview ? ($thumbstatus == 1 ? $this - > targetfile.
                    '.thumb.jpg' : $this - > targetfile) : DISCUZ_ROOT.
                './forumdata/watermark_temp.jpg';
                $thumb_photo = imagecreatetruecolor($thumb['width'], $thumb['height']);
                imageCopyreSampled($thumb_photo, $attach_photo, 0, 0, 0, 0, $thumb['width'], $thumb['height'], $img_w, $img_h);
                if ($this - > attachinfo['mime'] == 'image/jpeg') {
                    $imagefunc($thumb_photo, $targetfile, 100);
                } else {
                    $imagefunc($thumb_photo, $targetfile);
                }
                $this - > attach['thumb'] = $thumbstatus == 1 ? 1 : 0;
            }
        }
    }

    function Watermark_GD($preview = 0) {
            global $watermarkstatus, $watermarktype, $watermarktrans, $watermarkquality, $watermarktext;
            $watermarkstatus = $GLOBALS['forum']['disablewatermark'] ? 0 : $watermarkstatus;
            if ($watermarkstatus && function_exists('imagecopy') && function_exists('imagealphablending') && function_exists('imagecopymerge')) {
                $imagecreatefromfunc = $this - > imagecreatefromfunc;
                $imagefunc = $this - > imagefunc;
                list($img_w, $img_h) = $this - > attachinfo;
                if ($watermarktype < 2) {
                    $watermark_file = $watermarktype == 1 ? './images/common/watermark.png' : './images/common/watermark.gif';
                    $watermarkinfo = @getimagesize($watermark_file);
                    $watermark_logo = $watermarktype == 1 ? @imageCreateFromPNG($watermark_file) : @imageCreateFromGIF($watermark_file);
                    if (!$watermark_logo) {
                        return;
                    }
                    list($logo_w, $logo_h) = $watermarkinfo;
                } else {
                    $box = imagettfbbox($watermarktext['size'], $watermarktext['angle'], $watermarktext['fontpath'], $watermarktext['text']);
                    $logo_h = max($box[1], $box[3])– min($box[5], $box[7]);
                    $logo_w = max($box[2], $box[4])– min($box[0], $box[6]);
                    $ax = min($box[0], $box[6]) * -1;
                    $ay = min($box[5], $box[7]) * -1;
                }
                $wmwidth = $img_w– $logo_w;
                $wmheight = $img_h– $logo_h;
                if (($watermarktype < 2 && is_readable($watermark_file) || $watermarktype == 2) && $wmwidth > 10 && $wmheight > 10 && !$this - > animatedgif) {
                    switch ($watermarkstatus) {
                        case 1:
                            $x = +5;
                            $y = +5;
                            break;
                        case 2:
                            $x = ($img_w– $logo_w) / 2;
                            $y = +5;
                            break;
                        case 3:
                            $x = $img_w– $logo_w– 5;
                            $y = +5;
                            break;
                        case 4:
                            $x = +5;
                            $y = ($img_h– $logo_h) / 2;
                            break;
                        case 5:
                            $x = ($img_w– $logo_w) / 2;
                            $y = ($img_h– $logo_h) / 2;
                            break;
                        case 6:
                            $x = $img_w– $logo_w;
                            $y = ($img_h– $logo_h) / 2;
                            break;
                        case 7:
                            $x = +5;
                            $y = $img_h– $logo_h– 5;
                            break;
                        case 8:
                            $x = ($img_w– $logo_w) / 2;
                            $y = $img_h– $logo_h– 5;
                            break;
                        case 9:
                            $x = $img_w– $logo_w– 5;
                            $y = $img_h– $logo_h– 5;
                            break;
                    }
                    $dst_photo = imagecreatetruecolor($img_w, $img_h);
                    $target_photo = @$imagecreatefromfunc($this - > targetfile);
                    imageCopy($dst_photo, $target_photo, 0, 0, 0, 0, $img_w, $img_h);
                    if ($watermarktype == 1) {
                        imageCopy($dst_photo, $watermark_logo, $x, $y, 0, 0, $logo_w, $logo_h);
                    }
                    elseif($watermarktype == 2) {
                        if (($watermarktext['shadowx'] || $watermarktext['shadowy']) && $watermarktext['shadowcolor']) {
                            $shadowcolorrgb = explode(',', $watermarktext['shadowcolor']);
                            $shadowcolor = imagecolorallocate($dst_photo, $shadowcolorrgb[0], $shadowcolorrgb[1], $shadowcolorrgb[2]);
                            imagettftext($dst_photo, $watermarktext['size'], $watermarktext['angle'], $x + $ax + $watermarktext['shadowx'], $y + $ay + $watermarktext['shadowy'], $shadowcolor, $watermarktext['fontpath'], $watermarktext['text']);
                        }
                        $colorrgb = explode(',', $watermarktext['color']);
                        $color = imagecolorallocate($dst_photo, $colorrgb[0], $colorrgb[1], $colorrgb[2]);
                        imagettftext($dst_photo, $watermarktext['size'], $watermarktext['angle'], $x + $ax, $y + $ay, $color, $watermarktext['fontpath'], $watermarktext['text']);
                    } else {
                        imageAlphaBlending($watermark_logo, true);
                        imageCopyMerge($dst_photo, $watermark_logo, $x, $y, 0, 0, $logo_w, $logo_h, $watermarktrans);
                    }
                    $targetfile = !$preview ? $this - > targetfile : DISCUZ_ROOT.
                    './forumdata/watermark_temp.jpg';
                    if ($this - > attachinfo['mime'] == 'image/jpeg') {
                        $imagefunc($dst_photo, $targetfile, $watermarkquality);
                    } else {
                        $imagefunc($dst_photo, $targetfile);
                    }
                    $this - > attach['size'] = filesize($this - > targetfile);
                }
            }
        }
        //ImageMagick的函数定义 Magickwand
    function Thumb_IM($thumbwidth, $thumbheight, $preview = 0) {
        global $thumbstatus, $imageimpath;
        if ($thumbstatus) {
            list($img_w, $img_h) = $this - > attachinfo;
            $targetfile = !$preview ? ($thumbstatus == 1 ? $this - > targetfile.
                '.thumb.jpg' : $this - > targetfile) : DISCUZ_ROOT.
            './forumdata/watermark_temp.jpg';
            if (!$this - > animatedgif && ($img_w >= $thumbwidth || $img_h >= $thumbheight)) {
                $exec_str = $imageimpath.
                '/convert -geometry '.$thumbwidth.
                'x'.$thumbheight.
                ' '.$this - > targetfile.
                " ".$targetfile;@
                exec($exec_str, $output, $return);
                if (emptyempty($return) && emptyempty($output)) {
                    $this - > attach['thumb'] = $thumbstatus == 1 ? 1 : 0;
                }
            }
        }
    }

    function Watermark_IM($preview = 0) {
        global $watermarkstatus, $watermarktype, $watermarktrans, $watermarkquality, $watermarktext, $imageimpath;
        switch ($watermarkstatus) {
            case 1:
                $gravity = 'NorthWest';
                break;
            case 2:
                $gravity = 'North';
                break;
            case 3:
                $gravity = 'NorthEast';
                break;
            case 4:
                $gravity = 'West';
                break;
            case 5:
                $gravity = 'Center';
                break;
            case 6:
                $gravity = 'East';
                break;
            case 7:
                $gravity = 'SouthWest';
                break;
            case 8:
                $gravity = 'South';
                break;
            case 9:
                $gravity = 'SouthEast';
                break;
        }
        $targetfile = !$preview ? $this - > targetfile : DISCUZ_ROOT.
        './forumdata/watermark_temp.jpg';
        if ($watermarktype < 2) {
            $watermark_file = $watermarktype == 1 ? DISCUZ_ROOT.
            './images/common/watermark.png': DISCUZ_ROOT.
            './images/common/watermark.gif';
            $exec_str = $imageimpath.
            '/composite'.
            ($watermarktype != 1 && $watermarktrans != '100' ? ' -watermark '.$watermarktrans.
                '%' : '').
            ' -gravity '.$gravity.
            ' '.$watermark_file.
            ' '.$this - > targetfile.
            ' '.$targetfile;
        } else {
            $watermarktext['text'] = str_replace(array("\n", "\r", "'"), array('', '', '\''), $watermarktext['text']);
            $watermarktext['angle'] = -$watermarktext['angle'];
            $translate = $watermarktext['translatex'] || $watermarktext['translatey'] ? ' translate '.$watermarktext['translatex'].
            ','.$watermarktext['translatey']: '';
            $skewX = $watermarktext['skewx'] ? ' skewX '.$watermarktext['skewx'] : '';
            $skewY = $watermarktext['skewy'] ? ' skewY '.$watermarktext['skewy'] : '';
            $exec_str = $imageimpath.
            '/convert'.
            ' -font "'.$watermarktext['fontpath'].
            '"'.
            ' -pointsize '.$watermarktext['size'].
                (($watermarktext['shadowx'] || $watermarktext['shadowy']) && $watermarktext['shadowcolor'] ?
                    ' -fill "rgb('.$watermarktext['shadowcolor'].
                    ')"'.
                    ' -draw "'.
                    ' gravity '.$gravity.$translate.$skewX.$skewY.
                    ' rotate '.$watermarktext['angle'].
                    ' text '.$watermarktext['shadowx'].
                    ','.$watermarktext['shadowy'].
                    ' \''.$watermarktext['text'].
                    '\'"' : '').
            ' -fill "rgb('.$watermarktext['color'].
            ')"'.
            ' -draw "'.
            ' gravity '.$gravity.$translate.$skewX.$skewY.
            ' rotate '.$watermarktext['angle'].
            ' text 0,0 \''.$watermarktext['text'].
            '\'"'.
            ' '.$this - > targetfile.
            ' '.$targetfile;
        }@
        exec($exec_str, $output, $return);
        if (emptyempty($return) && emptyempty($output)) {
            $this - > attach['size'] = filesize($this - > targetfile);
        }
    }
}