/include/image.class.php
PHP | 350 lines | 311 code | 33 blank | 6 comment | 105 complexity | c923db96dff9b57f8989d6c8f487c2a7 MD5 | raw file
- <?
-
- /*
- [Discuz!] (C)2001-2009 Comsenz Inc.
- This is NOT a freeware, use is subject to license terms
-
- $Id: image.class.php 19557 2009-09-04 08:44:50Z monkey $
- */
-
- if(!defined('IN_DISCUZ')) {
- exit('Access Denied');
- }
-
- class Image {
-
- var $attachinfo = '';
- var $targetfile = '';
- var $imagecreatefromfunc = '';
- var $imagefunc = '';
- var $attach = array();
- var $animatedgif = 0;
- var $error = 0;
-
- function Image($targetfile, $attach = array()) {
- global $imagelib, $watermarktext, $imageimpath;
- $this->targetfile = $targetfile;
- $this->attach = $attach;
- $this->attachinfo = @getimagesize($targetfile);
- if(!$imagelib || !$imageimpath) {
- 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;
- }
-
- $this->attach['size'] = empty($this->attach['size']) ? @filesize($targetfile) : $this->attach['size'];
- if($this->attachinfo['mime'] == 'image/gif') {
- if($this->imagecreatefromfunc && !@imagecreatefromgif($targetfile)) {
- $this->error = 1;
- $this->imagecreatefromfunc = $this->imagefunc = '';
- return FALSE;
- }
- $fp = fopen($targetfile, 'rb');
- $targetfilecontent = fread($fp, $this->attach['size']);
- fclose($fp);
- $this->animatedgif = strpos($targetfilecontent, 'NETSCAPE2.0') === FALSE ? 0 : 1;
- }
- }
-
- function Thumb($thumbwidth, $thumbheight, $preview = 0) {
- global $imagelib, $imageimpath, $thumbstatus, $watermarkstatus;
- $imagelib && $imageimpath ? $this->Thumb_IM($thumbwidth, $thumbheight, $preview) : $this->Thumb_GD($thumbwidth, $thumbheight, $preview);
- if($thumbstatus == 2 && $watermarkstatus) {
- $this->Image($this->targetfile, $this->attach);
- }
- $this->attach['size'] = filesize($this->targetfile);
- }
-
- 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);
- }
-
- function Thumb_GD($thumbwidth, $thumbheight, $preview = 0) {
- global $thumbstatus, $thumbquality;
-
- if($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 >= $thumbheight)) {
-
- if($thumbstatus != 3) {
- $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';
- $cx = $img_w;
- $cy = $img_h;
- } else {
- $attach_photo = $imagecreatefromfunc($this->targetfile);
-
- $imgratio = $img_w / $img_h;
- $thumbratio = $thumbwidth / $thumbheight;
-
- if($imgratio >= 1 && $imgratio >= $thumbratio || $imgratio < 1 && $imgratio > $thumbratio) {
- $cuty = $img_h;
- $cutx = $cuty * $thumbratio;
- } elseif($imgratio >= 1 && $imgratio <= $thumbratio || $imgratio < 1 && $imgratio < $thumbratio) {
- $cutx = $img_w;
- $cuty = $cutx / $thumbratio;
- }
-
- $dst_photo = imagecreatetruecolor($cutx, $cuty);
- @imageCopyMerge($dst_photo, $attach_photo, 0, 0, 0, 0, $cutx, $cuty, 100);
-
- $thumb['width'] = $thumbwidth;
- $thumb['height'] = $thumbheight;
-
- $targetfile = !$preview ? $this->targetfile.'.thumb.jpg' : DISCUZ_ROOT.'./forumdata/watermark_temp.jpg';
- $cx = $cutx;
- $cy = $cuty;
- }
-
- $thumb_photo = imagecreatetruecolor($thumb['width'], $thumb['height']);
- @imageCopyreSampled($thumb_photo, $attach_photo ,0, 0, 0, 0, $thumb['width'], $thumb['height'], $cx, $cy);
- clearstatcache();
- if($this->attachinfo['mime'] == 'image/jpeg') {
- $imagefunc($thumb_photo, $targetfile, $thumbquality);
- } else {
- $imagefunc($thumb_photo, $targetfile);
- }
- $this->attach['thumb'] = $thumbstatus == 1 || $thumbstatus == 3 ? 1 : 0;
- }
- }
- }
-
- function Watermark_GD($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 {
- $watermarktextcvt = pack("H*", $watermarktext['text']);
- $box = imagettfbbox($watermarktext['size'], $watermarktext['angle'], $watermarktext['fontpath'], $watermarktextcvt);
- $logo_h = max($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'], $watermarktextcvt);
- }
- $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'], $watermarktextcvt);
- } else {
- imageAlphaBlending($watermark_logo, true);
- @imageCopyMerge($dst_photo, $watermark_logo, $x, $y, 0, 0, $logo_w, $logo_h, $watermarktrans);
- }
-
- $targetfile = !$preview ? $this->targetfile : DISCUZ_ROOT.'./forumdata/watermark_temp.jpg';
- clearstatcache();
- if($this->attachinfo['mime'] == 'image/jpeg') {
- $imagefunc($dst_photo, $targetfile, $watermarkquality);
- } else {
- $imagefunc($dst_photo, $targetfile);
- }
-
- $this->attach['size'] = filesize($targetfile);
- }
- }
- }
-
- function Thumb_IM($thumbwidth, $thumbheight, $preview = 0) {
- global $thumbstatus, $imageimpath, $thumbquality;
- if($thumbstatus) {
- list($img_w, $img_h) = $this->attachinfo;
- $targetfile = !$preview ? ($thumbstatus == 1 || $thumbstatus == 3 ? $this->targetfile.'.thumb.jpg' : $this->targetfile) : DISCUZ_ROOT.'./forumdata/watermark_temp.jpg';
- if(!$this->animatedgif && ($img_w >= $thumbwidth || $img_h >= $thumbheight)) {
- if($thumbstatus != 3) {
- $exec_str = $imageimpath.'/convert -quality '.intval($thumbquality).' -geometry '.$thumbwidth.'x'.$thumbheight.' '.$this->targetfile.' '.$targetfile;
- @exec($exec_str, $output, $return);
- if(empty($return) && empty($output)) {
- $this->attach['thumb'] = $thumbstatus == 1 ? 1 : 0;
- }
- } else {
- $imgratio = $img_w / $img_h;
- $thumbratio = $thumbwidth / $thumbheight;
-
- if($imgratio >= 1 && $imgratio >= $thumbratio || $imgratio < 1 && $imgratio > $thumbratio) {
- $cuty = $img_h;
- $cutx = $cuty * $thumbratio;
- } elseif($imgratio >= 1 && $imgratio <= $thumbratio || $imgratio < 1 && $imgratio < $thumbratio) {
- $cutx = $img_w;
- $cuty = $cutx / $thumbratio;
- }
- $exec_str = $imageimpath.'/convert -crop '.$cutx.'x'.$cuty.'+0+0 '.$this->targetfile.' '.$targetfile;
- @exec($exec_str, $output, $return);
- $exec_str = $imageimpath.'/convert -quality '.intval($thumbquality).' -geometry '.$thumbwidth.'x'.$thumbheight.' '.$targetfile.' '.$targetfile;
- @exec($exec_str, $output, $return);
- if(empty($return) && empty($output)) {
- $this->attach['thumb'] = $thumbstatus == 1 || $thumbstatus == 3 ? 1 : 0;
- }
- }
- }
- }
- }
-
- function Watermark_IM($preview = 0) {
- global $watermarkstatus, $watermarktype, $watermarktrans, $watermarkquality, $watermarktext, $imageimpath;
- $watermarkstatus = $GLOBALS['forum']['disablewatermark'] ? 0 : $watermarkstatus;
-
- switch($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.'%' : '').
- ' -quality '.$watermarkquality.
- ' -gravity '.$gravity.
- ' '.$watermark_file.' '.$this->targetfile.' '.$targetfile;
- } else {
- $watermarktextcvt = str_replace(array("\n", "\r", "'"), array('', '', '\''), pack("H*", $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 = $imageimpath.'/convert'.
- ' -quality '.$watermarkquality.
- ' -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'].','.$watermarktext['shadowy'].' \''.$watermarktextcvt.'\'"' : '').
- ' -fill "rgb('.$watermarktext['color'].')"'.
- ' -draw "'.
- ' gravity '.$gravity.$translate.$skewX.$skewY.
- ' rotate '.$watermarktext['angle'].
- ' text 0,0 \''.$watermarktextcvt.'\'"'.
- ' '.$this->targetfile.' '.$targetfile;
- }
- @exec($exec_str, $output, $return);
- if(empty($return) && empty($output)) {
- $this->attach['size'] = filesize($this->targetfile);
- }
- }
-
- }