128 lines
4.1 KiB
PHP
128 lines
4.1 KiB
PHP
<?
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if (!defined('_GNUBOARD_')) exit;
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/*******************************************************************************
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썸네일 Class
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사용법 :
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$thumb = new g4_thumbnail(경로, 썸네일이미지폭);
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$thumb->run(이미지 경로가 포함된 컨텐츠);
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*******************************************************************************/
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class g4_thumb {
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var $path;
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var $width;
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var $red = 0xff;
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var $green = 0xff;
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var $blue = 0xff;
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var $quality = 100;
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var $permission = 0606;
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function g4_thumb($path, $width) {
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$this->set_path($path);
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$this->set_width($width);
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}
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// 경로
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function set_path($path) {
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$this->path = $path;
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@mkdir($path, 0707);
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@chmod($path, 0707);
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}
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function set_width($width) {
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$this->width = $width;
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}
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function get_width() {
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return $this->width;
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}
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function set_bgcolor($red, $green, $blue) {
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$this->red = $red;
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$this->green = $green;
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$this->blue = $blue;
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}
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function set_quality($quality) {
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$this->quality = $quality;
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}
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function set_permission($permission) {
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$this->permission = $permission;
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}
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function create($srcimg, $thumbfile) {
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$width = $this->get_width();
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$source = null;
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$size = @getimagesize($srcimg);
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if ($size[2] == 1)
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$source = @imagecreatefromgif($srcimg);
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else if ($size[2] == 2)
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$source = @imagecreatefromjpeg($srcimg);
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else if ($size[2] == 3)
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$source = @imagecreatefrompng($srcimg);
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if ($source == null)
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return '';
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// 이미지의 폭이 설정폭 보다 작다면
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if ($size[0] < $width) {
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$width = $size[0];
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$height = $size[1];
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} else {
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$rate = $width / $size[0];
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$height = (int)($size[1] * $rate);
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}
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$target = @imagecreatetruecolor($width, $height);
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$bgcolor = @imagecolorallocate($target, $this->red, $this->green, $this->blue); // 썸네일 배경
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imagefilledrectangle($target, 0, 0, $width, $height, $bgcolor);
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imagecopyresampled($source, $source, 0, 0, 0, 0, $width, $height, $size[0], $size[1]);
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imagecopy($target, $source, 0, 0, 0, 0, $size[0], $size[1]);
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imagejpeg($target, $thumbfile, $this->quality);
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chmod($thumbfile, $this->permission); // 추후 삭제를 위하여 파일모드 변경
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return $thumbfile;
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}
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function thumbnail($matches)
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{
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foreach ($matches as $img) {
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preg_match("/src=[\"\']?([^\"\'\s>]+)/i", $img, $m);
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$src = trim($m[1]);
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$result = true;
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if (preg_match("/\.(jpe?g|png|gif)$/i", $src)) {
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// 유일한 파일명을 만든다.
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$filename = md5($src).'_'.$this->width;
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$thumb = $this->path.'/'.$filename;
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if (!file_exists($thumb)) {
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$result = $this->create($src, $thumb);
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}
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}
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else {
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$thumb = $src;
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}
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if ($result) {
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$size = @getimagesize($src);
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if ($size[0] < $this->width) {
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return "<img src='$thumb' width='$size[0]' />";
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} else {
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return "<a href='$src' target='_blank' title='새창으로 크게 보기'><img src='$thumb' width='{$this->width}' border='0' /></a>";
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}
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}
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}
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}
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function run($content)
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{
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//return preg_replace_callback('#<img[^>]+>#iS', create_function('$matches', 'return g4_thumb::thumbnail($matches);'), $content);
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//return preg_replace_callback('#<img[^>]+>#iS', array('g4_thumb', 'thumbnail'), $content);
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//return preg_replace_callback('#<img[^>]+>#iS', 'g4_thumb::thumbnail', $content);
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return preg_replace_callback('#<img[^>]+>#iS', array($this, 'thumbnail'), $content);
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}
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}
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?>
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