File: /var/www/html/pages/collage.php
<?php /**
* This class is used to create an image collage from
* an array of image links.
*
* @author Tully Rankin
* @website http://www.TullyRankin.com
*/
class Collage {
/**
* Holds array of image links
*/
public $images = array();
/**
* Height of the collage image
*/
public $height;
/**
* Width of the collage image
*/
public $width;
/**
* Holds the buffer of all images
*/
public $imgBuf = array();
/**
* Stores the created collage image
*/
public $imgOut;
/**
* Holds array of Exception objects
*/
public $errors = array();
public function __construct(Array $images, $height=1024, $width=768)
{
try {
if (empty($images))
throw new Exception('Images can not be empty.');
$this->images = $images;
$this->height = $height;
$this->width = $width;
$iTmp = "";
$this->_addImagesToBuffer();
$this->imgOut = imagecreatetruecolor($this->width, $this->height);
} catch (Exception $e) {
$this->errors[] = $e;
}
}
/**
* Creates the collage
*/
public function execute()
{
$tmpHeight = 0;
$tmpWidth = 0;
try {
do {
foreach($this->imgBuf as $image) {
if ($tmpWidth <= $this->width) {
@imagecopy($this->imgOut, $image, $tmpWidth, $tmpHeight, 0, 0, imagesx($image), imagesy($image));
@imagedestroy($image);
$tmpWidth += 50;
} else {
$tmpWidth = 0;
@imagecopy($this->imgOut, $image, $tmpWidth, $tmpHeight, 0, 0, imagesx($image), imagesy($image));
@imagedestroy($image);
$tmpWidth += 50;
$tmpHeight += 50;
}
}
$this->_addImagesToBuffer();;
} while($tmpHeight <= $this->height);
} catch (Exception $e) {
$this->errors[] = $e;
}
}
/**
* Saves the image to a file
*
* @param string $name The name of the image.
* @param string $type The image type to save as.
*/
public function saveFile($name, $type="jpeg")
{
try {
ob_start();
switch($type) {
case "png":
@imagepng($this->imgOut);
break;
case "jpg":
case "jpeg":
@imagejpeg($this->imgOut);
break;
case "gif":
@imagegif($this->imgOut);
break;
default:
throw new Exception("Unknown image type");
}
$contents = ob_get_contents();
ob_end_clean();
file_put_contents($name, $contents);
} catch (Exception $e) {
$this->errors[] = $e;
}
}
/*
* Creates an image from each image given in the constructor.
* Adds it to public imgBuf array
*/
protected function _addImagesToBuffer()
{
$this->imgBuf = array();
foreach($this->images as $imageSrc) {
$iTmp = imagecreatefromjpeg($imageSrc);
array_push($this->imgBuf, $iTmp);
}
}
}
?>