/**
* Helper to return image of the current image.
*
* @param string $type Derivative type of the image.
* @return void
*/
protected function _sendImage($type = null)
{
$request = $this->getRequest();
$itemId = $request->getParam('id');
$item = get_record_by_id('item', $itemId);
if (empty($item)) {
throw new Omeka_Controller_Exception_404();
}
$index = $request->getParam('image');
// Get the index.
if ($index != '000') {
$index = preg_replace('`^[0]*`', '', $index);
$index--;
} else {
$index = 0;
}
$bookreader = new BookReader($item);
$part = $request->getParam('part');
$bookreader->setPart($part);
if (is_null($type)) {
$scale = $request->getParam('scale');
$type = $bookreader->getSizeType($scale);
// Set a default, even it's normally useless.
$type = $type ?: 'fullsize';
}
$imagesFiles = $bookreader->getLeaves();
$file = $imagesFiles[$index];
// No file, so a blank image
if (empty($file)) {
$filepath = 'images/blank.png';
$image = file_get_contents(physical_path_to($filepath));
$this->getResponse()->clearBody();
$this->getResponse()->setHeader('Content-Type', 'image/jpeg');
$this->getResponse()->setBody($image);
} else {
$this->_helper->redirector->gotoUrlAndExit($file->getWebPath($type));
}
}
