/**
* Returns a new `ImageInterface` instance
* depending on the given file extension.
*
* Currently, these formats are supported:
*
* - Jpeg
* - GIF
* - PNG
*
* @param string $file Filename
* @return ImageInterface `JpegImage`, `GifImage` or `PngImage`
* @throws YaphrException
*
* @uses CheckReadableFile
* @uses FileExtension
* @uses JpegImage
* @uses GifImage
* @uses PngImage
*/
public function newInstance($file)
{
new CheckReadableFile($file);
$extension = new FileExtension($file);
switch ($extension->__toString()) {
case 'jpg':
case 'jpeg':
return new JpegImage($file);
break;
case 'gif':
return new GifImage($file);
break;
case 'png':
return new PngImage($file);
break;
default:
throw new YaphrException("Could not determine Image class from filename");
break;
}
}
/**
* @param resource $image Image resource or `ImageInterface` instance
* @param string $save_path Where to store that file
*
* @uses SaveImageAbstract::makeSureIsResource()
* @uses SaveImageAbstract::makeSureIsString()
* @uses FileExtension
*
* @throws YaphrException
*/
public function __construct($image, $save_path, $quality = 100)
{
$image = $this->makeSureIsResource($image);
$save_path = $this->makeSureIsString($save_path);
$extension = new FileExtension($save_path);
switch ($extension->__toString()) {
case 'jpg':
case 'jpeg':
return new SaveJpeg($image, $save_path, $quality);
break;
case 'gif':
return new SaveGif($image, $save_path, $quality);
break;
case 'png':
return new SavePng($image, $save_path, $quality);
break;
default:
throw new YaphrException("Could not determine SaveImage class from filename");
break;
}
}
