/**
* Create a thumbnail for the given file with the given width and height.
*
* @param string $name name of the image to create the thumbnail of
* @param string $fullPath absolute path to the image to create the thumbnail of
* @param int $width width to resize to (Set to 0 to preserve aspect ratio)
* @param int $height height to resize to (Set to 0 to preserve aspect ratio)
* @param bool $exact This will preserve aspect ratio by using a crop after the resize
* @return string path where the thumbnail was created
* @throws phMagickException
* @throws Zend_Exception
*/
public function createThumbnailFromPath($name, $fullPath, $width, $height, $exact = true)
{
/** @var SettingModel $settingModel */
$settingModel = MidasLoader::loadModel('Setting');
$provider = $settingModel->getValueByName(MIDAS_THUMBNAILCREATOR_PROVIDER_KEY, $this->moduleName);
$useThumbnailer = $settingModel->getValueByName(MIDAS_THUMBNAILCREATOR_USE_THUMBNAILER_KEY, $this->moduleName);
$preprocessedFormats = array('mha', 'nrrd');
$ext = strtolower(substr(strrchr($name, '.'), 1));
if ($useThumbnailer === 1 && $provider === 'phmagick' && in_array($ext, $preprocessedFormats)) {
// pre-process the file to get a temporary JPEG file and then feed it to ImageMagick later.
$preprocessedJpeg = $this->preprocessByThumbnailer($name, $fullPath);
if (isset($preprocessedJpeg) && file_exists($preprocessedJpeg)) {
$fullPath = $preprocessedJpeg;
$ext = strtolower(substr(strrchr($preprocessedJpeg, '.'), 1));
}
}
// create destination
$tmpPath = UtilityComponent::getTempDirectory('thumbnailcreator');
$format = $settingModel->getValueByName(MIDAS_THUMBNAILCREATOR_FORMAT_KEY, $this->moduleName);
if ($format === 'jpeg') {
$format = MIDAS_THUMBNAILCREATOR_FORMAT_JPG;
}
/** @var RandomComponent $randomComponent */
$randomComponent = MidasLoader::loadComponent('Random');
$destination = $tmpPath . '/' . $randomComponent->generateInt() . '.' . $format;
while (file_exists($destination)) {
$destination = $tmpPath . '/' . $randomComponent->generateInt() . '.' . $format;
}
$pathThumbnail = $destination;
if ($provider === 'phmagick') {
$imageMagickPath = $settingModel->getValueByName(MIDAS_THUMBNAILCREATOR_IMAGE_MAGICK_KEY, $this->moduleName);
switch ($ext) {
case 'pdf':
case 'mpg':
case 'mpeg':
case 'mp4':
case 'm4v':
case 'avi':
case 'mov':
case 'flv':
case 'rm':
// If this is a video, we have to have the file extension, so symlink it
if (function_exists('symlink') && symlink($fullPath, $fullPath . '.' . $ext)) {
$p = new phmagick('', $pathThumbnail);
$p->setImageMagickPath($imageMagickPath);
$p->acquireFrame($fullPath . '.' . $ext, 0);
if ($exact) {
// preserve aspect ratio by performing a crop after the resize
$p->resizeExactly($width, $height);
} else {
$p->resize($width, $height);
}
unlink($fullPath . '.' . $ext);
}
break;
default:
// Otherwise it is just a normal image
$p = new phmagick($fullPath, $pathThumbnail);
$p->setImageMagickPath($imageMagickPath);
if ($exact) {
// preserve aspect ratio by performing a crop after the resize
$p->resizeExactly($width, $height);
} else {
$p->resize($width, $height);
}
break;
}
// delete temporary file generated in pre-process step
if (isset($preprocessedJpeg) && file_exists($preprocessedJpeg)) {
unlink($preprocessedJpeg);
}
} elseif ($provider === MIDAS_THUMBNAILCREATOR_PROVIDER_GD || $provider === MIDAS_THUMBNAILCREATOR_PROVIDER_IMAGICK) {
try {
$manager = new \Intervention\Image\ImageManager(array('driver' => $provider));
$image = $manager->make($fullPath);
if ($height === 0) {
$image->widen($width);
} elseif ($width === 0) {
$image->heighten($height);
} else {
$image->resize($width, $height);
}
$image->save($pathThumbnail);
} catch (\RuntimeException $exception) {
Zend_Registry::get('logger')->err($exception->getMessage());
throw new Zend_Exception('Thumbnail creation failed');
}
} else {
throw new Zend_Exception('No thumbnail provider has been selected');
}
return $pathThumbnail;
}
/**
* tries to resize an image to the exact size wile mantaining aspect ratio,
* the image will be croped to fit the measures
* @param $width
* @param $height
*/
function resizeExactly(phmagick $p, $width, $height)
{
//requires Crop plugin
//requires dimensions plugin
$p->requirePlugin('crop');
$p->requirePlugin('info');
list($w, $h) = $p->getInfo($p->getSource());
if ($w > $h) {
$h = $height;
$w = 0;
} else {
$h = 0;
$w = $width;
}
$p->resize($w, $h)->crop($width, $height);
}
/**
* Creates a thumbnail of an image, if it doesn't exits
*
*
* @param String $imageUrl - The image Url
* @param Mixed $width - String / Integer
* @param Mixed $height - String / Integer
* @param boolean: False: resizes the image to the exact porportions (aspect ratio not preserved). True: preserves aspect ratio, only resises if image is bigger than specified measures
*
* @return String - the thumbnail URL
*/
function onTheFly(phmagick $p, $imageUrl, $width, $height, $exactDimentions = false, $webPath = '', $physicalPath = '')
{
//convert web path to physical
$basePath = str_replace($webPath, $physicalPath, dirname($imageUrl));
$sourceFile = $basePath . '/' . basename($imageUrl);
//naming the new thumbnail
$thumbnailFile = $basePath . '/' . $width . '_' . $height . '_' . basename($imageUrl);
$P->setSource($sourceFile);
$p->setDestination($thumbnailFile);
if (!file_exists($thumbnailFile)) {
$p->resize($p, $width, $height, $exactDimentions);
}
if (!file_exists($thumbnailFile)) {
//if there was an error, just use original file
$thumbnailFile = $sourceFile;
}
//returning the thumbnail url
return str_replace($physicalPath, $webPath, $thumbnailFile);
}
