/**
* Constructor
*/
public function __construct($bookId)
{
parent::__construct($bookId);
$this->epub = new EpubManager($bookId);
$this->workingDir = $this->initWorkingDir();
$this->startPage = $this->getPageCount();
}
protected function cropImage($idmlImage, $idmlRectangle, $s3File)
{
$ffi = $idmlRectangle->frameFittingOption;
if ($ffi->hasCroppingInstructions()) {
if (!$this->FileManager->exists($s3File)) {
CakeLog::warning('[IdmlResourceManager::cropImage] Source file ' . $s3File . ' does not exist.');
return false;
}
// InDesign uses 72ppi as its base units for IDML
// convert the cropping instruction units to image pixel units
$leftCrop = $ffi->leftCrop * ($idmlImage->ppiX / 72);
$rightCrop = $ffi->rightCrop * ($idmlImage->ppiX / 72);
$topCrop = $ffi->topCrop * ($idmlImage->ppiY / 72);
$bottomCrop = $ffi->bottomCrop * ($idmlImage->ppiY / 72);
// convert the image dimensions from InDesign units to real pixels
$originalImageWidth = $idmlImage->width * ($idmlImage->ppiX / 72);
$originalImageHeight = $idmlImage->height * ($idmlImage->ppiY / 72);
$widthOfCrop = $originalImageWidth - ($rightCrop + $leftCrop);
$heightOfCrop = $originalImageHeight - ($topCrop + $bottomCrop);
// download from S3 to local computer
$tmp = $this->FileManager->getTmpPath();
$basename = pathinfo($s3File, PATHINFO_BASENAME);
$localFile = $tmp . DS . $basename;
$this->FileManager->copy($s3File, $localFile);
$result = true;
// Crop
$imagick = new Imagick($localFile);
if ($imagick) {
try {
$imagick->cropImage($widthOfCrop, $heightOfCrop, $leftCrop, $topCrop);
$imagick->writeImage();
} catch (Exception $e) {
CakeLog::warning('[IdmlResourceManager::cropImage] Failed to crop ' . $localFile);
$result = false;
}
$imagick->clear();
$imagick->destroy();
}
// upload from local computer to S3
$this->FileManager->copy($localFile, $s3File);
$this->processor->patchSourceAssetList($localFile, $localFile);
return $result;
}
}