gregwar/image-bundle

Image handling bundle

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Language: PHP

v2.0.20 2015-05-31 08:14 UTC

README

GregwarImageBundle provides easy Image manipulation and API for Symfony2 and Twig

Installation

Step 1: Download the GregwarImageBundle

Using the vendors script

Add the following lines to your deps file:

    [GregwarImageBundle]
        git=http://github.com/Gregwar/ImageBundle.git
        target=/bundles/Gregwar/ImageBundle

Now, run the vendors script to download the bundle:

$ php bin/vendors install

Using submodules

If you prefer instead to use git submodules, then run the following:

$ git submodule add git://github.com/Gregwar/ImageBundle.git vendor/bundles/Gregwar/ImageBundle
$ git submodule update --init

Using Composer

Add the following to the "require" section of your composer.json file:

    "gregwar/image-bundle": "dev-master"

You can also choose a version number, (tag, commit ...)

And update your dependencies

    php composer.phar update

Step 2: Configure the Autoloader

If you use composer, you can skip this step.

Add it to your autoload.pp :

<?php
...
'Gregwar' => __DIR__.'/../vendor/bundles',

Step 3: Enable the bundle

Registers the bundle in your app/AppKernel.php:

<?php
...
public function registerBundles()
{
    $bundles = array(
        ...
        new Gregwar\ImageBundle\GregwarImageBundle(),
        ...
    );
...

Step 4: Configure the bundle and set up the directories

Adds the following configuration to your app/config/config.yml:

gregwar_image: ~

If you want to customize the cache directory name, you can specify it:

gregwar_image:
    cache_dir:  my_cache_dir

Creates the cache directory and change the permissions so the web server can write in it:

mkdir web/cache
chmod 777 web/cache

You can also enable the exception thrown if the given file does not exist:

gregwar_image:
    throw_exception: true

If you don't throw an exception, you can set the fallback_image, to set the image that should be rendered in this case:

gregwar_image:
    fallback_image: /path/to/your/fallback.jpg

If you have to change directories hierarchy or Web's name (e.g. web => public_html), you can set the web_dir to your new Web path:

gregwar_image:
    web_dir: %kernel.root_dir%/../../public_html

Usage

Basics

This bundle is based on the Gregwar's Image class and provides simple but powerful Twig extension. You can for instance use it this way:

<img src="{{ image('linux.jpg').resize(100,100).negate }}" />

And that's all ! The helper will automatically create the cached file on-the-fly if it doesn't exists yet.

The available methods are the same as the Gregwar's Image.

You can also use the logical file names for bundle resources :

<img src="{{ image('@AcmeDemoBundle/Resources/images/linux.jpg').resize(100,100).negate }}" />

If you use web_image() helper, the image file path will be prefixed by the web/ absolute directory of your application:

<!-- The image some/image.jpg will be prefixed by web directory prefix -->
<img src="{{ web_image('some/image.jpg').resize('10%') }}" />

Using Image API

The image instance provides also a simple API, you can call some methods to get informations about the handled image:

Image width: {{ image('linux.jpg').width }}px

Manipulating Image in Controllers

The Image Handler is accessible via a service called image.handling. So you can do in your controllers:

<?php
...
$this->get('image.handling')->open('linux.jpg')
    ->grayscale()
    ->rotate(12)
    ->save('out.jpg')

Requirements

GregwarImageBundle needs GD and exif extension for PHP to be installed on the web server

License

This bundle is under MIT license