How to implement Imagine image library in Codeigniter - php

Question

I am trying to add the Imagine image library into a Codeigniter application, but this is the first time I have ever encounter the "namespace" and "use" concept which I just don't get. Most Libs usually need an include, require etc... to make them work with your framework but I am having a hard time trying to implement this "namespace", "use" approach.
Now how far did I get, well I downloaded the Lib, put the Imagine folder in my libraries folder in CI where I have another image Lib call wideimage which I had no problem adapting to CI. I try to be creative and and loaded the library files just like any regular library file is loaded in CI.
And thats where the problem began, I started getting a lot of errors like class is not found got the error line and right away I thought it may need that other file that has that class now that work for some of the errors that it kept on giving me but its like every time a new lib file is loaded another error comes up and some errors just won't go away even if the file with the main class is present.
Now I did found an article on how to set an SPL auto load and I got the following code
set_include_path('/application/libraries/Imagine' . PATH_SEPARATOR . get_include_path());
function imagineLoader($class) {
$path = $class;
$path = str_replace('\\', DIRECTORY_SEPARATOR, $path) . '.php';
if (file_exists($path)) {
include $path;
}
}
spl_autoload_register('\imagineLoader');
But never got it to work, in this case it gave me an error of CI classes or files where not being found.
Now again to my questions is there a way to implemet this Imagine image library into Codeigniter?
To either load it through the regular library loader or through an autoload file?
Something like this;
class Test extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('imagine');
}
public function index()
{
// Do some cool things with the image lib functions
}
}
Well I would really appreciate anyone's help on this in the mean time I will keep on looking around the web to see if I can find an answer.

Answer 1

Anyway after a day of looking I finally found a way to do it, and thank you simplepie feed parser I knew I had seen similar code in the past.
Anyway I actually looked over at the simplepie autoloader.php file which loads the classes to use simplepie and I just did some small adjustments to the code to be able to use Imagine Lib in Codeigniter.
So here are the steps and code:
1 download the Imagine Library at:
https://github.com/avalanche123/Imagine
2 Copy the Imagine folder into your CI application libraries folder: application/libraries
3 Create a file and call it imagine_autoload.php
4 add the following code to the imagine_autoload.php file
set_include_path('/application/libraries/Imagine' . PATH_SEPARATOR . get_include_path());
function imagineLoader($class) {
$path = $class;
$path = str_replace('\\', DIRECTORY_SEPARATOR, $path) . '.php';
if (strpos($class, 'Imagine') !== 0)
{
return;
}
include_once $path;
}
spl_autoload_register('\imagineLoader');
Now to the fun part on your controller do the following:
require_once('./application/libraries/imagine_autoloader.php');
// Here you can use the imagine imagine tools
use Imagine\Image\Box;
use Imagine\Image\Point;
class Testing extends CI_Controller {
function __construct()
{
parent::__construct();
}
function index($offset = 0)
{
$imagine = new \Imagine\Gd\Imagine();
$image = $imagine->open('/path/to/image.jpg');
$thumbnail = $image->thumbnail(new Imagine\Image\Box(100, 100));
$thumbnail->save('/path/to/thumnail_image.jpg');
}
}
Now go an look at where you saved the new image and you will find a new image that has been re size.
Hopefully someone will find this useful.