/**
* Rotate the source image and store it to dest path
* Return true if successful and false otherwise
*/
public static function rotate($srcPath, $destPath, $degrees)
{
$config = CFactory::getConfig();
$app = JFactory::getApplication();
// Set output quality
$imgQuality = $config->get('output_image_quality');
$imageEngine = $config->get('imageengine');
$magickPath = $config->get('magickPath');
$info = getimagesize($srcPath);
$imgType = image_type_to_mime_type($info[2]);
$rotate = null;
// Use imageMagick if available
if (class_exists('Imagick') && ($imageEngine == 'auto' || $imageEngine == 'imagick')) {
//$jconfig = JFactory::getConfig();
//$tmpPath = $jconfig->getValue('config.tmp_path') .'/'. JFile::getName($srcPath);
$tmpPath = $app->getCfg('tmp_path') . '/' . JFile::getName($srcPath);
$image = new Imagick();
$image->readImage($srcPath);
// ImageMagick seems to rotate it counter-clockwise, hence have
// to multiply the degress by -1
$image->rotateImage(new ImagickPixel(), $degrees * -1);
$image->writeImage($tmpPath);
$image->clear();
$image->destroy();
JFile::move($tmpPath, $destPath);
return true;
} else {
if ($imgType == 'image/png' && function_exists('imagecreatefrompng')) {
$source = imagecreatefrompng($srcPath);
if ($degrees == '90') {
$rotatedImage = CImageHelper::rotatePNGImage($source);
} else {
if ($degrees == '-90') {
$rotatedImage = CImageHelper::rotatePNGImage(CImageHelper::rotatePNGImage(CImageHelper::rotatePNGImage($source)));
}
}
ob_start();
imagepng($rotatedImage);
$output = ob_get_contents();
ob_end_clean();
// @todo, need to verify that the $output is indeed a proper image data
return JFile::write($destPath, $output);
} else {
if ($imgType == 'image/jpeg' && function_exists('imagecreatefromjpeg') && function_exists('imagerotate')) {
// @todo: Support rotation for other image type other than JPEG
// Load
$source = imagecreatefromjpeg($srcPath);
// Rotate
$rotate = imagerotate($source, $degrees, 0);
if ($rotate) {
// Output
ob_start();
// We default to use jpeg
imagejpeg($rotate, null, $imgQuality);
$output = ob_get_contents();
ob_end_clean();
// @todo, need to verify that the $output is indeed a proper image data
return JFile::write($destPath, $output);
}
}
}
}
return false;
}
