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<?php
/**
* @package Phoca Gallery
* @author Jan Pavelka - https://www.phoca.cz
* @copyright Copyright (C) Jan Pavelka https://www.phoca.cz
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 and later
* @cms Joomla
* @copyright Copyright (C) Open Source Matters. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
*/
defined( '_JEXEC' ) or die( 'Restricted access' );
use Joomla\CMS\Factory;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Filesystem\File;
use Joomla\CMS\Language\Text;
jimport( 'joomla.filesystem.folder' );
jimport( 'joomla.filesystem.file' );
phocagalleryimport('phocagallery.render.renderprocess');
phocagalleryimport('phocagallery.file.file');
phocagalleryimport('phocagallery.image.image');
register_shutdown_function(function(){
$error = error_get_last();
if(null !== $error) {
if (isset($error['type']) && $error['type'] == 1) {
$app = Factory::getApplication();
$app->redirect('index.php?option=com_phocagallery&view=phocagalleryfe&error=1');
exit;
}
}
});
class PhocaGalleryImageRotate
{
public static function rotateImage($thumbName, $size, $angle=90, &$errorMsg) {
$params = ComponentHelper::getParams('com_phocagallery') ;
$jfile_thumbs = $params->get( 'jfile_thumbs', 1 );
$jpeg_quality = $params->get( 'jpeg_quality', 85 );
$jpeg_quality = PhocaGalleryImage::getJpegQuality($jpeg_quality);
// Try to change the size
/*$memory = 8;
$memoryLimitChanged = 0;
$memory = (int)ini_get( 'memory_limit' );
if ($memory == 0) {
$memory = 8;
}*/
$fileIn = $thumbName->abs;
$fileOut = $thumbName->abs;
if ($fileIn !== '' && file_exists($fileIn)) {
//array of width, height, IMAGETYPE, "height=x width=x" (string)
list($w, $h, $type) = GetImageSize($fileIn);
// we got the info from GetImageSize
if ($w > 0 && $h > 0 && $type !='') {
// Change the $w against $h because of rotating
$src = array(0,0, $w, $h);
$dst = array(0,0, $h, $w);
} else {
$errorMsg = 'ErrorWorHorType';
return false;
}
// Try to increase memory
/*if ($memory < 50) {
ini_set('memory_limit', '50M');
$memoryLimitChanged = 1;
}*/
switch($type)
{
case IMAGETYPE_JPEG:
if (!function_exists('ImageCreateFromJPEG')) {
$errorMsg = 'ErrorNoJPGFunction';
return false;
}
//$image1 = ImageCreateFromJPEG($fileIn);
try {
$image1 = ImageCreateFromJPEG($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorJPGFunction';
return false;
}
break;
case IMAGETYPE_PNG :
if (!function_exists('ImageCreateFromPNG')) {
$errorMsg = 'ErrorNoPNGFunction';
return false;
}
//$image1 = ImageCreateFromPNG($fileIn);
try {
$image1 = ImageCreateFromPNG($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorPNGFunction';
return false;
}
break;
case IMAGETYPE_GIF :
if (!function_exists('ImageCreateFromGIF')) {
$errorMsg = 'ErrorNoGIFFunction';
return false;
}
//$image1 = ImageCreateFromGIF($fileIn);
try {
$image1 = ImageCreateFromGIF($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorGIFFunction';
return false;
}
break;
case IMAGETYPE_WEBP :
if (!function_exists('ImageCreateFromWEBP')) {
$errorMsg = 'ErrorNoWEBPFunction';
return false;
}
//$image1 = ImageCreateFromGIF($fileIn);
try {
$image1 = ImageCreateFromWEBP($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorWEBPFunction';
return false;
}
break;
case IMAGETYPE_WBMP:
if (!function_exists('ImageCreateFromWBMP')) {
$errorMsg = 'ErrorNoWBMPFunction';
return false;
}
//$image1 = ImageCreateFromWBMP($fileIn);
try {
$image1 = ImageCreateFromWBMP($fileIn);
} catch(\Exception $exception) {
$errorMsg = 'ErrorWBMPFunction';
return false;
}
break;
Default:
$errorMsg = 'ErrorNotSupportedImage';
return false;
break;
}
if ($image1) {
// Building image for ROTATING
/* $image2 = @ImageCreateTruecolor($dst[2], $dst[3]);
if (!$image2) {
return 'ErrorNoImageCreateTruecolor';
}*/
/* if(!function_exists("imagerotate")) {
$errorMsg = 'ErrorNoImageRotate';
return false;
}*/
switch($type)
{
case IMAGETYPE_PNG:
case IMAGETYPE_WEBP:
// imagealphablending($image1, false);
// imagesavealpha($image1, true);
if(!function_exists("imagecolorallocate")) {
$errorMsg = 'ErrorNoImageColorAllocate';
return false;
}
if(!function_exists("imagefill")) {
$errorMsg = 'ErrorNoImageFill';
return false;
}
if(!function_exists("imagecolortransparent")) {
$errorMsg = 'ErrorNoImageColorTransparent';
return false;
}
$colBlack = imagecolorallocate($image1, 0, 0, 0);
if(!function_exists("imagerotate")) {
$image2 = PhocaGalleryImageRotate::imageRotate($image1, $angle, $colBlack);
} else {
$image2 = imagerotate($image1, $angle, $colBlack);
}
//imagefill($image2, 0, 0, $colBlack);
//imagecolortransparent($image2, $colBlack);
imagealphablending($image2, false);
imagesavealpha($image2, true);
break;
Default:
if(!function_exists("imagerotate")) {
$image2 = PhocaGalleryImageRotate::imageRotate($image1, $angle, 0);
} else {
$image2 = imageRotate($image1, $angle, 0);
}
break;
}
// Get the image size and resize the rotated image if necessary
$rotateWidth = imagesx($image2);// Get the size from rotated image
$rotateHeight = imagesy($image2);// Get the size from rotated image
$parameterSize = PhocaGalleryFileThumbnail::getThumbnailResize($size);
$newWidth = $parameterSize['width']; // Get maximum sizes, they can be displayed
$newHeight = $parameterSize['height'];// Get maximum sizes, they can be displayed
$scale = (($newWidth / $rotateWidth) < ($newHeight / $rotateHeight)) ? ($newWidth / $rotateWidth) : ($newHeight / $rotateHeight); // smaller rate
$src = array(0,0, $rotateWidth, $rotateHeight);
$dst = array(0,0, floor($rotateWidth*$scale), floor($rotateHeight*$scale));
// If original is smaller than thumbnail size, don't resize it
if ($src[2] > $dst[2] || $src[3] > $dst[3]) {
// Building image for RESIZING THE ROTATED IMAGE
$image3 = @ImageCreateTruecolor($dst[2], $dst[3]);
if (!$image3) {
$errorMsg = 'ErrorNoImageCreateTruecolor';
return false;
}
ImageCopyResampled($image3, $image2, $dst[0],$dst[1], $src[0],$src[1], $dst[2],$dst[3], $src[2],$src[3]);
switch($type)
{
case IMAGETYPE_PNG:
case IMAGETYPE_WEBP:
// imagealphablending($image2, true);
// imagesavealpha($image2, true);
if(!function_exists("imagecolorallocate")) {
$errorMsg = 'ErrorNoImageColorAllocate';
return false;
}
if(!function_exists("imagefill")) {
$errorMsg = 'ErrorNoImageFill';
return false;
}
if(!function_exists("imagecolortransparent")) {
$errorMsg = 'ErrorNoImageColorTransparent';
return false;
}
$colBlack = imagecolorallocate($image3, 0, 0, 0);
imagefill($image3, 0, 0, $colBlack);
imagecolortransparent($image3, $colBlack);
break;
}
} else {
$image3 = $image2;
}
switch($type) {
case IMAGETYPE_JPEG:
if (!function_exists('ImageJPEG')) {
$errorMsg = 'ErrorNoJPGFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImageJPEG($image3, NULL, $jpeg_quality)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgJPEGToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgJPEGToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImageJPEG($image3, $fileOut, $jpeg_quality)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_PNG :
if (!function_exists('ImagePNG')) {
$errorMsg = 'ErrorNoPNGFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImagePNG($image3, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgPNGToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgPNGToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImagePNG($image3, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_GIF :
if (!function_exists('ImageGIF')) {
$errorMsg = 'ErrorNoGIFFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@ImageGIF($image3, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgGIFToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgGIFToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@ImageGIF($image3, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
case IMAGETYPE_WEBP :
if (!function_exists('ImageWEBP')) {
$errorMsg = 'ErrorNoWEBPFunction';
return false;
}
if ($jfile_thumbs == 1) {
ob_start();
if (!@imagewebp($image3, NULL)) {
ob_end_clean();
$errorMsg = 'ErrorWriteFile';
return false;
}
$imgWEBPToWrite = ob_get_contents();
ob_end_clean();
if(!File::write( $fileOut, $imgWEBPToWrite)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
} else {
if (!@imagewebp($image3, $fileOut)) {
$errorMsg = 'ErrorWriteFile';
return false;
}
}
break;
Default:
$errorMsg = 'ErrorNotSupportedImage';
return false;
break;
}
// free memory
if (isset($image1)) {ImageDestroy($image1);}// Original
if (isset($image2)) {ImageDestroy($image2);}// Original
if (isset($image3)) {@ImageDestroy($image3);}// Resized
/*if ($memoryLimitChanged == 1) {
$memoryString = $memory . 'M';
ini_set('memory_limit', $memoryString);
}*/
return true; // Success
} else {
$errorMsg = PhocaGalleryUtils::setMessage($errorMsg, Text::_('COM_PHOCAGALLERY_ERROR_IMAGE_NOT_PROCESS'));
return false;
}
/*if ($memoryLimitChanged == 1) {
$memoryString = $memory . 'M';
ini_set('memory_limit', $memoryString);
}*/
}
$errorMsg = Text::_('COM_PHOCAGALLERY_FILEORIGINAL_NOT_EXISTS');
return false;
}
/* This function is provided by php manual (function.imagerotate.php)
It's a workaround to enables image rotation on distributions which do not
use the bundled gd library (e.g. Debian, Ubuntu).
*/
public static function imageRotate($src_img, $angle, $colBlack = 0) {
if (!imageistruecolor($src_img))
{
$w = imagesx($src_img);
$h = imagesy($src_img);
$t_im = imagecreatetruecolor($w,$h);
imagecopy($t_im,$src_img,0,0,0,0,$w,$h);
$src_img = $t_im;
}
$src_x = imagesx($src_img);
$src_y = imagesy($src_img);
if ($angle == 180)
{
$dest_x = $src_x;
$dest_y = $src_y;
}
elseif ($src_x <= $src_y)
{
$dest_x = $src_y;
$dest_y = $src_x;
}
elseif ($src_x >= $src_y)
{
$dest_x = $src_y;
$dest_y = $src_x;
}
$rotate=imagecreatetruecolor($dest_x,$dest_y);
imagealphablending($rotate, false);
switch ($angle)
{
case 270:
for ($y = 0; $y < ($src_y); $y++)
{
for ($x = 0; $x < ($src_x); $x++)
{
$color = imagecolorat($src_img, $x, $y);
imagesetpixel($rotate, $dest_x - $y - 1, $x, $color);
}
}
break;
case 90:
for ($y = 0; $y < ($src_y); $y++)
{
for ($x = 0; $x < ($src_x); $x++)
{
$color = imagecolorat($src_img, $x, $y);
imagesetpixel($rotate, $y, $dest_y - $x - 1, $color);
}
}
break;
case 180:
for ($y = 0; $y < ($src_y); $y++)
{
for ($x = 0; $x < ($src_x); $x++)
{
$color = imagecolorat($src_img, $x, $y);
imagesetpixel($rotate, $dest_x - $x - 1, $dest_y - $y - 1,
$color);
}
}
break;
Default: $rotate = $src_img;
};
return $rotate;
}
}
?>