Get supported image types

[wasinger]

Is there a way to get the image types an Imagine instance supports?

I would think of a method ImagineInterface::supportedTypes(): array that should return an array of mime types.

Additionally, a method ImagineInterface::supports($mime_type): boolean would be nice to check if a certain mime type is supported.

Or is there already another way to this? The only thing I see are private functions with hardcoded type lists (e.g. in Imagine\Imagick\Image there is a private function getMimeType($format) containing a static types array, but there's no way to read it out).

The implementation in the Imagine adapters could rely on:

• imagetypes() for GD
• Gmagick::queryformats() for Gmagick
• Imagick::queryFormats() for Imagick