sam-kd/php/common.php

<?
class Image {    
    var $file;
    var $image_width;
    var $image_height;
    var $width;
    var $height;
    var $ext;
    var $types = array('','gif','jpeg','png','swf');
    var $quality = 70;
    var $top = 0;
    var $left = 0;
    var $crop = false;
    var $type;
    var $rotation_angle;
    var $dir;
    var $name;
    
    function __construct($name='') {
        $this->file = $name;
        $info = getimagesize($name);
        $this->image_width = $info[0];
        $this->image_height = $info[1];
        $this->type = $this->types[$info[2]];
        $info = pathinfo($name);
        $this->dir = $info['dirname'];
        $this->name = str_replace('.'.$info['extension'], '', $info['basename']);
        $this->ext = $info['extension'];
    }
    
    function dir($dir='') {
        if(!$dir) return $this->dir;
        $this->dir = $dir;
    }
    
    function name($name='') {
        if(!$name) return $this->name;
        $this->name = $name;
    }
    
    function width($width='') {
        $this->width = $width;
    }
    
    function height($height='') {
        $this->height = $height;
    }
    
    function resize($percentage=50) {
        if($this->crop) {
            $this->crop = false;
            $this->width = round($this->width*($percentage/100));
            $this->height = round($this->height*($percentage/100));
            $this->image_width = round($this->width/($percentage/100));
            $this->image_height = round($this->height/($percentage/100));
        } else {
            $this->width = round($this->image_width*($percentage/100));
            $this->height = round($this->image_height*($percentage/100));
        }
        
    }
    
    function crop($top=0, $left=0) {
        $this->crop = true;
        $this->top = $top;
        $this->left = $left;
    }
    
    function quality($quality=70) {
        $this->quality = $quality;
    }
    
    function rotate($angle) {
        $this->rotation_angle = $angle;
    }
    
    function show() {
        $this->save(true);
    }
    
    function save($show=false) {
 
        if($show) @header('Content-Type: image/'.$this->type);
        
        if(!$this->width && !$this->height) {
            $this->width = $this->image_width;
            $this->height = $this->image_height;
        } elseif (is_numeric($this->width) && empty($this->height)) {
            $this->height = round($this->width/($this->image_width/$this->image_height));
        } elseif (is_numeric($this->height) && empty($this->width)) {
            $this->width = round($this->height/($this->image_height/$this->image_width));
        } else {
            if($this->width<=$this->height) {
                $height = round($this->width/($this->image_width/$this->image_height));
                if($height!=$this->height) {
                    $percentage = ($this->image_height*100)/$height;
                    $this->image_height = round($this->height*($percentage/100));
                }
            } else {
                $width = round($this->height/($this->image_height/$this->image_width));
                if($width!=$this->width) {
                    $percentage = ($this->image_width*100)/$width;
                    $this->image_width = round($this->width*($percentage/100));
                }
            }
        }
        
        if($this->crop) {
            $this->image_width = $this->width;
            $this->image_height = $this->height;
        }
 
        if($this->type=='jpeg') $image = imagecreatefromjpeg($this->file);
        if($this->type=='png') $image = imagecreatefrompng($this->file);
        if($this->type=='gif') $image = imagecreatefromgif($this->file);
        
        $new_image = imagecreatetruecolor($this->width, $this->height);
        imagecopyresampled($new_image, $image, 0, 0, $this->top, $this->left, $this->width, $this->height, $this->image_width, $this->image_height);
        
        // Apply rotation if specified
        if(isset($this->rotation_angle) && $this->rotation_angle != 0) {
            $new_image = imagerotate($new_image, $this->rotation_angle, 0);
        }
        
        $name = $show ? null: $this->dir.DIRECTORY_SEPARATOR.$this->name.'.'.$this->ext;
    
        if($this->type=='jpeg') imagejpeg($new_image, $name, $this->quality);
        if($this->type=='png') imagepng($new_image, $name);
        if($this->type=='gif') imagegif($new_image, $name);
 
        imagedestroy($image); 
        imagedestroy($new_image);
        
    }
    
}			 

// // 파일 압축 메소드 수정	
function compress_image($source, $destination, $quality) { 
    $info = getimagesize($source); 
    
    if ($info['mime'] == 'image/jpeg') {
        $image = imagecreatefromjpeg($source); 
    } elseif ($info['mime'] == 'image/gif') {
        $image = imagecreatefromgif($source); 
    } elseif ($info['mime'] == 'image/png') {
        $image = imagecreatefrompng($source); 
    } elseif ($info['mime'] == 'image/x-ms-bmp') {
        $image = imagecreatefrombmp($source);
    } else {
        return false; // 지원하지 않는 파일 형식
    }
    
    // 압축된 파일 저장
    imagejpeg($image, $destination, $quality); 
    
    // 크기 조정 (최대 800px)
    list($width, $height) = getimagesize($destination);
    if ($width > 800 || $height > 800) {
        $rate = $width / $height;

        if ($width > $height) {
            $new_width = 800;
            $new_height = 800 / $rate;
        } else {
            $new_width = 800 * $rate;
            $new_height = 800;
        }

        // `Image` 클래스를 사용해 크기 조정
        $imageObj = new Image($destination);
        $imageObj->width($new_width);
        $imageObj->height($new_height);
        $imageObj->save(false); // 파일을 다시 저장
    }

    return $destination; // 최종 파일 경로 반환
}
?>