Allow rewrite Varien_Image (#2666)

Author: luigifab

app/code/core/Mage/Catalog/Helper/Image.php

@@ -645,7 +645,7 @@ public function validateUploadFile($filePath)
             Mage::throwException($this->__('Disallowed file format.'));
         }
 
-        $_processor = new Varien_Image($filePath);
+        $_processor = Mage::getModel('varien/image', $filePath);
         $mimeType = $_processor->getMimeType();
 
         // Force garbage collection since image handler resource uses memory without counting toward memory limit

app/code/core/Mage/Catalog/Model/Api2/Product/Image/Rest/Admin/V1.php

@@ -69,7 +69,7 @@ protected function _create(array $data)
             // try to create Image object to check if image data is valid
             try {
                 $filePath = $apiTempDir . DS . $imageFileName;
-                new Varien_Image($filePath);
+                Mage::getModel('varien/image', $filePath);
                 Mage::getModel('core/file_validator_image')->validate($filePath);
             } catch (Exception $e) {
                 $ioAdapter->rmdir($apiTempDir, true);

app/code/core/Mage/Catalog/Model/Product/Attribute/Media/Api.php

@@ -158,7 +158,7 @@ public function create($productId, $data, $store = null, $identifierType = null)
             // try to create Image object - it fails with Exception if image is not supported
             try {
                 $filePath = $tmpDirectory . DS . $fileName;
-                new Varien_Image($filePath);
+                Mage::getModel('varien/image', $filePath);
                 Mage::getModel('core/file_validator_image')->validate($filePath);
             } catch (Exception $e) {
                 // Remove temporary directory

app/code/core/Mage/Catalog/Model/Product/Image.php

@@ -451,7 +451,7 @@ public function setImageProcessor($processor)
     public function getImageProcessor()
     {
         if (!$this->_processor) {
-            $this->_processor = new Varien_Image($this->getBaseFile());
+            $this->_processor = Mage::getModel('varien/image', $this->getBaseFile());
         }
         $this->_processor->keepAspectRatio($this->_keepAspectRatio);
         $this->_processor->keepFrame($this->_keepFrame);

app/code/core/Mage/ConfigurableSwatches/Helper/Productimg.php

@@ -308,7 +308,7 @@ protected function _resizeSwatchImage($filename, $tag, $width, $height)
             }
 
             // Do resize and save
-            $processor = new Varien_Image($sourceFilePath);
+            $processor = Mage::getModel('varien/image', $sourceFilePath);
             $processor->resize($width, $height);
             $processor->save(Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . DS . $destPath);
             Mage::helper('core/file_storage_database')->saveFile($destPath);