77 lines
2.8 KiB
PHP
77 lines
2.8 KiB
PHP
<?php
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if (!defined('_GNUBOARD_')) exit;
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@ini_set('memory_limit', '512M');
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function thumbnail($bo_table, $file, $width, $height, $is_create=false)
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{
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global $g4;
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$thumb_dir = "$g4[path]/data/thumb/$bo_table";
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if (!is_dir($thumb_dir)) {
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@mkdir($thumb_dir, 0707);
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@chmod($thumb_dir, 0707);
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}
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$thumb_file = "$thumb_dir/{$width}x{$height}_{$file}.png";
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$thumb_time = @filemtime($thumb_file);
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$source_file = "$g4[path]/data/file/$bo_table/$file";
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$source_time = @filemtime($source_file);
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if (file_exists($thumb_file)) {
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if ($is_create == false && $source_time < $thumb_time) {
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return $thumb_file;
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}
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}
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$size = @getimagesize($source_file);
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// 이미지 파일이 없거나 아님
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if (!$size[0]) {
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if (!$height) $height = $width;
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$thumb_file = "$g4[path]/data/thumb/{$width}x{$height}_noimg.gif";
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if (!file_exists($thumb_file)) {
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$target = imagecreate($width, $height);
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imagecolorallocate($target, 250, 250, 250);
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imagecopy($target, $target, 0, 0, 0, 0, $width, $height);
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imagepng($target, $thumb_file, 0);
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@chmod($thumb_file, 0606); // 추후 삭제를 위하여 파일모드 변경
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}
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return $thumb_file;
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}
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$is_imagecopyresampled = false;
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$is_large = false;
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$src = null;
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if ($size[2] == 1) {
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$src = imagecreatefromgif($source_file);
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} else if ($size[2] == 2) {
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$src = imagecreatefromjpeg($source_file);
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} else if ($size[2] == 3) {
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$src = imagecreatefrompng($source_file);
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}
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if ($width) {
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if ($height) {
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$rate = $width / $size[0];
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$tmp_height = (int)($size[1] * $rate);
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if ($tmp_height < $height) {
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$dst = imagecreatetruecolor($width, $height);
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$bgcolor = imagecolorallocate($dst, 250, 250, 250); // 배경색 여기야!!!
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imagefill($dst, 0, 0, $bgcolor);
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imagecopyresampled($dst, $src, 0, 0, 0, 0, $width, $tmp_height, $size[0], $size[1]);
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} else {
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$dst = imagecreatetruecolor($width, $height);
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imagecopyresampled($dst, $src, 0, 0, 0, 0, $width, $tmp_height, $size[0], $size[1]);
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}
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} else {
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$rate = $width / $size[0];
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$tmp_height = (int)($size[1] * $rate);
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$dst = imagecreatetruecolor($width, $tmp_height);
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imagecopyresampled($dst, $src, 0, 0, 0, 0, $width, $tmp_height, $size[0], $size[1]);
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}
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}
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imagepng($dst, $thumb_file, 0); // 0 (no compression) ~ 9
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chmod($thumb_file, 0606); // 추후 삭제를 위하여 파일모드 변경
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return $thumb_file;
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}
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?>
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