/**
* {@inheritdoc}
*/
public function transform(File $file, $self = false)
{
if ($file->type() !== 'image/jpeg') {
return $file;
// Exif only in JPGs
}
$width = $file->width();
$height = $file->height();
$exif = $file->exif();
$this->setConfig('degrees', 0);
// Reset degrees
$options = array('dest_w' => $width, 'dest_h' => $height, 'source_w' => $width, 'source_h' => $height, 'quality' => $this->getConfig('quality'), 'overwrite' => $self, 'target' => sprintf('%s-exif-%s', $file->name(), $exif['orientation'] ?: 0));
switch ($exif['orientation']) {
case 2:
// Flip horizontally
$options['source_x'] = $width;
$options['source_w'] = -$width;
break;
case 3:
// Rotate 180 degrees
$this->setConfig('degrees', 180);
break;
case 4:
case 5:
case 7:
// Flip vertically
$options['source_y'] = $height;
$options['source_h'] = -$height;
// Also rotate -90 degrees for orientation 5
if ($exif['orientation'] == 5) {
$this->setConfig('degrees', -90);
}
// Or rotate 90 degrees for orientation 7
if ($exif['orientation'] == 7) {
$this->setConfig('degrees', 90);
}
break;
case 6:
$this->setConfig('degrees', -90);
break;
case 8:
$this->setConfig('degrees', 90);
break;
default:
// Correct, strip exif only
break;
}
if ($degrees = $this->getConfig('degrees')) {
$options['postCallback'] = array($this, 'rotate');
}
return $this->_process($file, $options);
}
/**
* Test that exif() returns exif data.
*/
public function testExif()
{
$file = new File(TEMP_DIR . '/exif-data.jpg');
$this->assertEquals(array('make' => 'NIKON CORPORATION', 'model' => 'NIKON 1 J1', 'exposure' => '10/4000', 'orientation' => 1, 'fnumber' => '45/10', 'date' => '2013:06:07 11:32:22', 'iso' => 100, 'focal' => '100/10'), $file->exif());
$file = new File(TEMP_DIR . '/magic-mime-verify.js');
$this->assertEquals(array('make' => '', 'model' => '', 'exposure' => '', 'orientation' => '', 'fnumber' => '', 'date' => '', 'iso' => '', 'focal' => ''), $file->exif());
}
