Discuz 图片处理函数
前段时间挖出来看看的，程序结构不如 CodeIgniter 写的好，功能不如 WordPress 的图片处理
暂且收藏一下，没地方放，就放这里了
image.class.php
<?php
/*
[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($this->imagecreatefromfunc && [email protected]imagecreatefromgif($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);
}
}
}
?>
/*
[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($this->imagecreatefromfunc && [email protected]imagecreatefromgif($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);
}
}
}
?>
image_lite.php
<?php
class Image_Lite {
var $attachinfo = '';
var $srcfile = '';
var $targetfile = '';
var $imagecreatefromfunc = '';
var $imagefunc = '';
var $attach = array();
var $animatedgif = 0;
var $smallimg = 0;
var $img_w = 0;
var $img_h = 0;
var $thumbwidth = 0;
var $thumbheight = 0;
function Image_Lite($srcfile, $targetfile) {
$this->srcfile = $srcfile;
$this->targetfile = $targetfile ? $targetfile : '';
$this->attachinfo = @getimagesize($srcfile);
list($this->img_w, $this->img_h) = $this->attachinfo;
if($targetfile) {
//@mkdir('./forumdata/imagecaches/', 0777);
}
}
function Thumb($thumbwidth, $thumbheight) {
global $imagelib, $imageimpath;
$this->thumbwidth = $thumbwidth;
$this->thumbheight = $thumbheight;
$this->smallimg = $this->img_w < $this->thumbwidth || $this->img_h < $this->thumbheight;
return $imagelib && $imageimpath && $this->targetfile && !$this->smallimg ? $this->Thumb_IM() : $this->Thumb_GD();
}
function Size() {
$imgratio = $this->img_w / $this->img_h;
$thumbratio = $this->thumbwidth / $this->thumbheight;
if($imgratio >= 1 && $imgratio >= $thumbratio || $imgratio < 1 && $imgratio > $thumbratio) {
$cuth = $this->img_h;
$cutw = $cuth * $thumbratio;
$startx = ($this->img_w - $thumbratio * $this->img_h) / 2;
$starty = 0;
} elseif($imgratio >= 1 && $imgratio <= $thumbratio || $imgratio < 1 && $imgratio < $thumbratio) {
$cutw = $this->img_w;
$cuth = $cutw / $thumbratio;
$startx = 0;
$starty = 0;
}
return array($cutw, $cuth, $startx, $starty);
}
function Thumb_GD() {
switch($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' : '';
$this->imagefunc = function_exists('imagepng') ? 'imagepng' : '';
break;
}
if($this->attachinfo['mime'] == 'image/gif') {
$fp = fopen($this->srcfile, 'rb');
$targetfilecontent = fread($fp, @filesize($this->srcfile));
fclose($fp);
$this->animatedgif = strpos($targetfilecontent, 'NETSCAPE2.0') === FALSE ? 0 : 1;
}
if(function_exists('imagecreatetruecolor') && function_exists('imagecopymerge') && function_exists('imagecopyresampled') && function_exists($this->imagecreatefromfunc) && function_exists($this->imagefunc)) {
$imagecreatefromfunc = $this->imagecreatefromfunc;
$imagefunc = $this->imagefunc;
if(!$this->animatedgif) {
$attach_photo = @$imagecreatefromfunc($this->srcfile);
if($attach_photo) {
if(!$this->smallimg) {
list($cutw, $cuth, $startx, $starty) = $this->size();
$dst_photo = imagecreatetruecolor($cutw, $cuth);
imagecopymerge($dst_photo, $attach_photo, 0, 0, $startx, $starty, $cutw, $cuth, 100);
$thumb_photo = imagecreatetruecolor($this->thumbwidth, $this->thumbheight);
imagecopyresampled($thumb_photo, $dst_photo ,0, 0, 0, 0, $this->thumbwidth, $this->thumbheight, $cutw, $cuth);
} else {
$bgcolor = imagecolorat($attach_photo, 0, 0);
$bgcolor = imagecolorsforindex($attach_photo, $bgcolor);
$thumb_photo = imagecreatetruecolor($this->thumbwidth, $this->thumbheight);
$bgcolor = imagecolorallocate($thumb_photo, $bgcolor['red'], $bgcolor['green'], $bgcolor['blue']);
imagefill($thumb_photo, 0, 0, $bgcolor);
imagecopymerge($thumb_photo, $attach_photo, ($this->thumbwidth - $this->img_w) / 2, ($this->thumbheight - $this->img_h) / 2, 0, 0, $this->img_w, $this->img_h, 100);
}
clearstatcache();
$targetfile = $this->targetfile ? DISCUZ_ROOT.$this->targetfile : '';
if($this->attachinfo['mime'] == 'image/jpeg') {
$imagefunc($thumb_photo, $targetfile, 100);
} elseif($targetfile) {
$imagefunc($thumb_photo, $targetfile);
} else {
$imagefunc($thumb_photo);
}
return TRUE;
}
}
}
return FALSE;
}
function Thumb_IM() {
list($cutw, $cuth, $startx, $starty) = $this->size();
global $imageimpath;
$exec_str = $imageimpath.'/convert -crop '.$cutw.'x'.$cuth.'+'.$startx.'+'.$starty.' '.$this->srcfile.' '.$this->targetfile;
@exec($exec_str);
$exec_str = $imageimpath.'/convert -quality 100 -geometry '.$this->thumbwidth.'x'.$this->thumbheight.' '.$this->targetfile.' '.$this->targetfile;
@exec($exec_str);
if(file_exists($this->targetfile)) {
dheader('location: '.$GLOBALS['boardurl'].$this->targetfile);
}
}
}
?>
class Image_Lite {
var $attachinfo = '';
var $srcfile = '';
var $targetfile = '';
var $imagecreatefromfunc = '';
var $imagefunc = '';
var $attach = array();
var $animatedgif = 0;
var $smallimg = 0;
var $img_w = 0;
var $img_h = 0;
var $thumbwidth = 0;
var $thumbheight = 0;
function Image_Lite($srcfile, $targetfile) {
$this->srcfile = $srcfile;
$this->targetfile = $targetfile ? $targetfile : '';
$this->attachinfo = @getimagesize($srcfile);
list($this->img_w, $this->img_h) = $this->attachinfo;
if($targetfile) {
//@mkdir('./forumdata/imagecaches/', 0777);
}
}
function Thumb($thumbwidth, $thumbheight) {
global $imagelib, $imageimpath;
$this->thumbwidth = $thumbwidth;
$this->thumbheight = $thumbheight;
$this->smallimg = $this->img_w < $this->thumbwidth || $this->img_h < $this->thumbheight;
return $imagelib && $imageimpath && $this->targetfile && !$this->smallimg ? $this->Thumb_IM() : $this->Thumb_GD();
}
function Size() {
$imgratio = $this->img_w / $this->img_h;
$thumbratio = $this->thumbwidth / $this->thumbheight;
if($imgratio >= 1 && $imgratio >= $thumbratio || $imgratio < 1 && $imgratio > $thumbratio) {
$cuth = $this->img_h;
$cutw = $cuth * $thumbratio;
$startx = ($this->img_w - $thumbratio * $this->img_h) / 2;
$starty = 0;
} elseif($imgratio >= 1 && $imgratio <= $thumbratio || $imgratio < 1 && $imgratio < $thumbratio) {
$cutw = $this->img_w;
$cuth = $cutw / $thumbratio;
$startx = 0;
$starty = 0;
}
return array($cutw, $cuth, $startx, $starty);
}
function Thumb_GD() {
switch($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' : '';
$this->imagefunc = function_exists('imagepng') ? 'imagepng' : '';
break;
}
if($this->attachinfo['mime'] == 'image/gif') {
$fp = fopen($this->srcfile, 'rb');
$targetfilecontent = fread($fp, @filesize($this->srcfile));
fclose($fp);
$this->animatedgif = strpos($targetfilecontent, 'NETSCAPE2.0') === FALSE ? 0 : 1;
}
if(function_exists('imagecreatetruecolor') && function_exists('imagecopymerge') && function_exists('imagecopyresampled') && function_exists($this->imagecreatefromfunc) && function_exists($this->imagefunc)) {
$imagecreatefromfunc = $this->imagecreatefromfunc;
$imagefunc = $this->imagefunc;
if(!$this->animatedgif) {
$attach_photo = @$imagecreatefromfunc($this->srcfile);
if($attach_photo) {
if(!$this->smallimg) {
list($cutw, $cuth, $startx, $starty) = $this->size();
$dst_photo = imagecreatetruecolor($cutw, $cuth);
imagecopymerge($dst_photo, $attach_photo, 0, 0, $startx, $starty, $cutw, $cuth, 100);
$thumb_photo = imagecreatetruecolor($this->thumbwidth, $this->thumbheight);
imagecopyresampled($thumb_photo, $dst_photo ,0, 0, 0, 0, $this->thumbwidth, $this->thumbheight, $cutw, $cuth);
} else {
$bgcolor = imagecolorat($attach_photo, 0, 0);
$bgcolor = imagecolorsforindex($attach_photo, $bgcolor);
$thumb_photo = imagecreatetruecolor($this->thumbwidth, $this->thumbheight);
$bgcolor = imagecolorallocate($thumb_photo, $bgcolor['red'], $bgcolor['green'], $bgcolor['blue']);
imagefill($thumb_photo, 0, 0, $bgcolor);
imagecopymerge($thumb_photo, $attach_photo, ($this->thumbwidth - $this->img_w) / 2, ($this->thumbheight - $this->img_h) / 2, 0, 0, $this->img_w, $this->img_h, 100);
}
clearstatcache();
$targetfile = $this->targetfile ? DISCUZ_ROOT.$this->targetfile : '';
if($this->attachinfo['mime'] == 'image/jpeg') {
$imagefunc($thumb_photo, $targetfile, 100);
} elseif($targetfile) {
$imagefunc($thumb_photo, $targetfile);
} else {
$imagefunc($thumb_photo);
}
return TRUE;
}
}
}
return FALSE;
}
function Thumb_IM() {
list($cutw, $cuth, $startx, $starty) = $this->size();
global $imageimpath;
$exec_str = $imageimpath.'/convert -crop '.$cutw.'x'.$cuth.'+'.$startx.'+'.$starty.' '.$this->srcfile.' '.$this->targetfile;
@exec($exec_str);
$exec_str = $imageimpath.'/convert -quality 100 -geometry '.$this->thumbwidth.'x'.$this->thumbheight.' '.$this->targetfile.' '.$this->targetfile;
@exec($exec_str);
if(file_exists($this->targetfile)) {
dheader('location: '.$GLOBALS['boardurl'].$this->targetfile);
}
}
}
?>
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Tags: ImageMagick, 图片处理, Discuz, 图像处理