Contao Imagine SVG library
==========================

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This project implements the interfaces of [Imagine][1] and allows you to make
simple modifications to SVG images. It is used in [Contao][2] to handle
on-the-fly resizing of SVG images.

Installation
------------

```sh
php composer.phar require contao/imagine-svg
```

Usage
-----

```php
use Contao\ImagineSvg\Imagine;
use Imagine\Image\Box;
use Imagine\Image\Point;

$imagine = new Imagine();

$imagine
    ->open('/path/to/image.svg')
    ->crop(new Point(50, 50), new Box(100, 100))
    ->resize(new Box(40, 40))
    ->save('/path/to/thumbnail.svg')
;
```

Because of the nature of SVG images, the `getSize()` method differs a little bit
from other implementations. You can check the return value like in this example:

```php
use Contao\ImagineSvg\Imagine;
use Contao\ImagineSvg\RelativeBoxInterface;
use Contao\ImagineSvg\UndefinedBoxInterface;

$imagine = new Imagine();
$size = $imagine->open('/path/to/image.svg')->getSize();

if ($size instanceof UndefinedBoxInterface) {
    // The image has no defined size
} elseif ($size instanceof RelativeBoxInterface) {
    // The image has a relative size, $size->getWidth() and $size->getHeight()
    // should be treated as an aspect ratio
} else {
    // The image has a defined size like a regular image
}
```

[1]: https://github.com/avalanche123/Imagine
[2]: https://contao.org