gnu-social/classes/Avatar.php

<?php
/**
 * Table Definition for avatar
 */
require_once 'DB/DataObject.php';

class Avatar extends DB_DataObject 
{
    ###START_AUTOCODE
    /* the code below is auto generated do not remove the above tag */

    public $__table = 'avatar';                          // table name
    public $profile_id;                      // int(4)  primary_key not_null
    public $original;                        // tinyint(1)  
    public $width;                           // int(4)  primary_key not_null
    public $height;                          // int(4)  primary_key not_null
    public $mediatype;                       // varchar(32)   not_null
    public $filename;                        // varchar(255)  
    public $url;                             // varchar(255)  unique_key
    public $created;                         // datetime()   not_null
    public $modified;                        // timestamp()   not_null default_CURRENT_TIMESTAMP

    /* Static get */
    function staticGet($k,$v=NULL) { return DB_DataObject::staticGet('Avatar',$k,$v); }

    /* the code above is auto generated do not remove the tag below */
    ###END_AUTOCODE

	# We clean up the file, too
	
	function delete() {
		$filename = $this->filename;
		if (parent::delete()) {
			@unlink(common_avatar_path($filename));
		}
	}

	# Create and save scaled version of this avatar
	# XXX: maybe break into different methods 
	
	function scale($size) {

		$image_s = imagecreatetruecolor($size, $size);
		$image_a = $this->to_image();

		$square = min($this->width, $this->height);

		imagecopyresampled($image_s, $image_a, 0, 0, 0, 0,
						   $size, $size, $square, $square);

		$ext = ($this->mediattype == 'image/jpeg') ? ".jpeg" : ".png";

		$filename = common_avatar_filename($this->profile_id, $ext, $size, common_timestamp());

		if ($this->mediatype == 'image/jpeg') {
			imagejpeg($image_s, common_avatar_path($filename));
		} else {
			imagepng($image_s, common_avatar_path($filename));
		}

		$scaled = DB_DataObject::factory('avatar');
		$scaled->profile_id = $this->profile_id;
		$scaled->width = $size;
		$scaled->height = $size;
		$scaled->original = false;
		$scaled->mediatype = ($this->mediattype == 'image/jpeg') ? 'image/jpeg' : 'image/png';
		$scaled->filename = $filename;
		$scaled->url = common_avatar_url($filename);
		$scaled->created = DB_DataObject_Cast::dateTime(); # current time

		if ($scaled->insert()) {
			return $scaled;
		} else {
			return NULL;
		}
	}

	function to_image() {
		$filepath = common_avatar_path($this->filename);
		if ($this->mediatype == 'image/gif') {
			return imagecreatefromgif($filepath);
		} else if ($this->mediatype == 'image/jpeg') {
			return imagecreatefromjpeg($filepath);
		} else if ($this->mediatype == 'image/png') {
			return imagecreatefrompng($filepath);
		} else {
			return NULL;
		}
	}
}