PHP Varien_Image::crop方法代码示例

 public function createPreview($name, $pathModule, $id, $width, $height)
 {
     if (isset($_FILES[$name]['name']) && $_FILES[$name]['name'] != null) {
         $path = Mage::getBaseDir('media') . DS . $pathModule . DS;
         $imageObj = new Varien_Image($path . '/' . $_FILES[$name]['name']);
         $imageObj->constrainOnly(TRUE);
         $imageObj->keepAspectRatio(FALSE);
         $imageObj->keepFrame(FALSE);
         $currentRatio = $imageObj->getOriginalWidth() / $imageObj->getOriginalHeight();
         $targetRatio = $width / $height;
         if ($targetRatio > $currentRatio) {
             $imageObj->resize($width, null);
         } else {
             $imageObj->resize(null, $height);
         }
         $diffWidth = $imageObj->getOriginalWidth() - $width;
         $diffHeight = $imageObj->getOriginalHeight() - $height;
         //$imageObj->resize($width, $height);
         $imageObj->crop(floor($diffHeight * 0.5), floor($diffWidth / 2), ceil($diffWidth / 2), ceil($diffHeight * 0.5));
         if (empty($id)) {
             $id = Mage::getModel('evoqueflex/evoqueflex')->getCollection()->addOrder('slide_id', 'ASC')->getLastItem()->toArray();
             $id = $id['slide_id'];
         }
         $userfile_extn = explode(".", strtolower($_FILES[$name]['name']));
         $imageObj->save($path . 'preview_' . $id . '.' . $userfile_extn[1]);
     }
 }

 protected function _getResizedImage($file, $width, $height, $resizeMode = 'cover')
 {
     if (empty($file)) {
         return false;
     }
     $width = (int) $width;
     $height = (int) $height;
     $imagePath = $this->getImageFullPath($file);
     $imageFileResized = $width . '_' . $height . '_' . $resizeMode . DS . $file;
     $imageFileResizedFullPath = $this->getImageCacheFullPath($imageFileResized);
     if (!file_exists($imageFileResizedFullPath) && file_exists($imagePath) || file_exists($imagePath) && filemtime($imagePath) > filemtime($imageFileResizedFullPath)) {
         $finalAspectRatio = $width / $height;
         $imageObj = new Varien_Image($imagePath);
         $imageObj->backgroundColor(array(255, 255, 255));
         $originalWidth = (int) $imageObj->getOriginalWidth();
         $originalHeight = (int) $imageObj->getOriginalHeight();
         $originalAspectRatio = $originalWidth / $originalHeight;
         if ($resizeMode == 'cover') {
             if ($originalAspectRatio > $finalAspectRatio) {
                 $cropWidth = $finalAspectRatio * $originalHeight;
                 $widthDiff = $originalWidth - $cropWidth;
                 $cropX = (int) ($widthDiff / 2);
                 $imageObj->crop(0, $cropX, $cropX, 0);
             } else {
                 $cropHeight = (int) ($originalWidth / $finalAspectRatio);
                 $heightDiff = $originalHeight - $cropHeight;
                 $cropY = (int) ($heightDiff / 2);
                 $imageObj->crop($cropY, 0, 0, $cropY);
             }
         } else {
             $imageObj->constrainOnly(false);
             $imageObj->keepAspectRatio(true);
             $imageObj->keepFrame(true);
         }
         $imageObj->resize($width, $height);
         $imageObj->quality(100);
         $imageObj->save($imageFileResizedFullPath);
     }
     $imageCacheUrl = $this->getImageCacheUrl($imageFileResized);
     if (file_exists($imageFileResizedFullPath)) {
         return $imageCacheUrl;
     }
     return false;
 }

 /**
  * resize and crop image
  * @param string $fileName
  * @param string $width
  * @param string $height
  * @return string - resized image url
  */
 public function adaptiveResize($fileName, $width, $height)
 {
     $folderURL = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);
     $imageURL = $folderURL . $fileName;
     $basePath = Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . '/' . $fileName;
     $newPath = Mage::getBaseDir(Mage_Core_Model_Store::URL_TYPE_MEDIA) . '/' . "resized" . '/' . $fileName;
     //if width empty then return original size image's URL
     if ($width != '') {
         //if image has already resized then just return URL
         if (file_exists($basePath) && is_file($basePath) && !file_exists($newPath)) {
             $imageObj = new Varien_Image($basePath);
             $imageObj->constrainOnly(FALSE);
             $imageObj->keepAspectRatio(TRUE);
             $imageObj->keepFrame(FALSE);
             $imageObj->quality(95);
             $this->currentDimensions = array();
             $this->currentDimensions['width'] = $imageObj->getOriginalWidth();
             $this->currentDimensions['height'] = $imageObj->getOriginalHeight();
             $this->newDimensions = array();
             $this->newDimensions['newWidth'] = $imageObj->getOriginalWidth();
             $this->newDimensions['newHeight'] = $imageObj->getOriginalHeight();
             $this->adaptiveResizeDimensions($width, $height);
             $imageObj->resize($this->newDimensions['newWidth'], $this->newDimensions['newHeight']);
             if ($this->cropDimensions['x'] > 0 || $this->cropDimensions['y'] > 0) {
                 //top, left, right, bottom
                 $imageObj->crop($this->cropDimensions['y'], $this->cropDimensions['x'], intval($this->newDimensions['newWidth'] - $this->_adaptiveMaxWidth - $this->cropDimensions['x']), intval($this->newDimensions['newHeight'] - $this->_adaptiveMaxHeight - $this->cropDimensions['y']));
             }
             $imageObj->save($newPath);
         }
         $resizedURL = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA) . "resized" . '/' . $fileName;
     } else {
         $resizedURL = $imageURL;
     }
     return $resizedURL;
 }

 /**
  * Returns array('success'=>true) or array('error'=>'error message')
  */
 function handleUpload($uploadDirectory, $slider_dimensions, $replaceOldFile = FALSE)
 {
     if (!is_writable($uploadDirectory)) {
         return array('error' => Mage::helper('lookbookslider')->__("File can't be uploaded. Upload directory isn't writable."));
     }
     if (!$this->filemodel) {
         return array('error' => Mage::helper('lookbookslider')->__("Uploader error. File was not uploaded."));
     }
     $size = $this->filemodel->getSize();
     if ($size == 0) {
         return array('error' => Mage::helper('lookbookslider')->__("File is empty"));
     }
     if ($size > $this->sizeLimit) {
         return array('error' => Mage::helper('lookbookslider')->__("File is too large"));
     }
     $pathinfo = pathinfo($this->filemodel->getName());
     $filename = $pathinfo['filename'];
     //$filename = md5(uniqid());
     $filename = uniqid();
     $ext = $pathinfo['extension'];
     if ($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)) {
         $these = implode(', ', $this->allowedExtensions);
         return array('error' => Mage::helper('lookbookslider')->__("File can't be uploaded. It has an invalid extension, it should be one of %s.", $these));
     }
     if (!$replaceOldFile) {
         /// don't overwrite previous files that were uploaded
         while (file_exists($uploadDirectory . $filename . '.' . $ext)) {
             $filename .= rand(10, 99);
         }
     }
     if ($this->filemodel->save($uploadDirectory . $filename . '.' . $ext)) {
         $imgPathFull = $uploadDirectory . $filename . '.' . $ext;
         $image_dimensions = Mage::helper('lookbookslider')->getImageDimensions($imgPathFull);
         if (!isset($image_dimensions['error'])) {
             /////////////////////////////////////////////
             $resized_image = new Varien_Image($imgPathFull);
             $resized_image->constrainOnly(FALSE);
             $resized_image->keepAspectRatio(TRUE);
             $resized_image->keepTransparency(TRUE);
             $resized_image->keepFrame(FALSE);
             if ($slider_dimensions['width'] / $slider_dimensions['height'] > $resized_image->getOriginalWidth() / $resized_image->getOriginalHeight()) {
                 $resized_image->resize($slider_dimensions['width'], null);
             } else {
                 $resized_image->resize(null, $slider_dimensions['height']);
             }
             $cropX = 0;
             $cropY = 0;
             if ($resized_image->getOriginalWidth() > $slider_dimensions['width']) {
                 $cropX = intval(($resized_image->getOriginalWidth() - $slider_dimensions['width']) / 2);
             } elseif ($resized_image->getOriginalHeight() > $slider_dimensions['height']) {
                 $cropY = intval(($resized_image->getOriginalHeight() - $slider_dimensions['height']) / 2);
             }
             $resized_image->crop($cropY, $cropX, $cropX, $cropY);
             $resized_image->save($imgPathFull);
             $image_dimensions = Mage::helper('lookbookslider')->getImageDimensions($imgPathFull);
             /////////////////////////////////////////////
         } else {
             return array('error' => Mage::helper('lookbookslider')->__("Could not get uploaded image dimensions."));
         }
         return array('success' => true, 'filename' => $filename . '.' . $ext, 'dimensions' => $image_dimensions);
     } else {
         return array('error' => Mage::helper('lookbookslider')->__("Could not save uploaded file. The upload was cancelled, or server error encountered"));
     }
 }

 /**
  * Returns the resized Image URL
  *
  * @param string $imgUrl - This is relative to the the media folder (custom/module/images/example.jpg)
  * @param int $x Width
  * @param int $y Height
  *Remember your base image or big image must be in Root/media/lookbookslider/example.jpg
  *
  * echo Mage::helper('lookbookslider')->getResizedUrl("lookbookslider/example.jpg",101,65)
  *
  *By doing this new image will be created in Root/media/lookbookslider/101X65/example.jpg
  */
 public function getResizedUrl($imgUrl, $x, $y = NULL)
 {
     $imgPath = $this->splitImageValue($imgUrl, "path");
     $imgName = $this->splitImageValue($imgUrl, "name");
     /**
      * Path with Directory Seperator
      */
     $imgPath = str_replace("/", DS, $imgPath);
     /**
      * Absolute full path of Image
      */
     $imgPathFull = Mage::getBaseDir("media") . DS . $imgPath . DS . $imgName;
     /**
      * If Y is not set set it to as X
      */
     $width = $x;
     $y ? $height = $y : ($height = $x);
     /**
      * Resize folder is widthXheight
      */
     $resizeFolder = $width . "X" . $height;
     /**
      * Image resized path will then be
      */
     $imageResizedPath = Mage::getBaseDir("media") . DS . $imgPath . DS . $resizeFolder . DS . $imgName;
     /**
      * First check in cache i.e image resized path
      * If not in cache then create image of the width=X and height = Y
      */
     if (!file_exists($imageResizedPath) && file_exists($imgPathFull)) {
         $imageObj = new Varien_Image($imgPathFull);
         $imageObj->constrainOnly(FALSE);
         $imageObj->keepAspectRatio(TRUE);
         $imageObj->keepTransparency(TRUE);
         $imageObj->keepFrame(FALSE);
         //    $imageObj->resize($width,$height);
         // $widthDistance = $imageObj->getOriginalWidth() - $width;
         // $heightDistance = $imageObj->getOriginalHeight() - $height;
         if ($width / $height > $imageObj->getOriginalWidth() / $imageObj->getOriginalHeight()) {
             $imageObj->resize($width, null);
         } else {
             $imageObj->resize(null, $height);
         }
         $cropX = 0;
         $cropY = 0;
         if ($imageObj->getOriginalWidth() > $width) {
             $cropX = intval(($imageObj->getOriginalWidth() - $width) / 2);
         } elseif ($imageObj->getOriginalHeight() > $height) {
             $cropY = intval(($imageObj->getOriginalHeight() - $height) / 2);
         }
         $imageObj->crop($cropY, $cropX, $cropX, $cropY);
         $imageObj->save($imageResizedPath);
     }
     /**
      * Else image is in cache replace the Image Path with / for http path.
      */
     $imgUrl = str_replace(DS, "/", $imgPath);
     /**
      * Return full http path of the image
      */
     return Mage::getBaseUrl("media") . $imgUrl . "/" . $resizeFolder . "/" . $imgName;
 }

 /**
  * Get image after cropping it
  * @param string $content
  * @param int $width
  * @param int $height
  * @param string $ratio
  * @return string
  * @throws
  */
 public function getCropImage($content, $width, $height, $ratio = '')
 {
     preg_match_all('/(?<!_)url=([\'"])?(.*?)\\1/', $content, $matches);
     if (isset($matches[2][0])) {
         $images = explode('/', $matches[2][0]);
         $sourceImage = Mage::getBaseDir('media') . DS . $matches[2][0];
         $image = new Varien_Image($sourceImage);
         list($widthImg, $heightImg, , ) = getimagesize($sourceImage);
         if ($ratio == '') {
             $top = 0;
             $left = 0;
             $right = $widthImg - $width;
             $bottom = $heightImg - $height;
         } else {
             list($ratioWidth, $ratioHeight) = explode(':', $ratio);
             if ($heightImg * ($ratioWidth / $ratioHeight) > $widthImg) {
                 $cropHeight = $widthImg / ($ratioWidth / $ratioHeight);
                 $cropWidth = $widthImg;
             } else {
                 $cropWidth = $heightImg * ($ratioWidth / $ratioHeight);
                 $cropHeight = $heightImg;
             }
             $top = 0;
             $left = 0;
             $right = $widthImg - $cropWidth;
             $bottom = $heightImg - $cropHeight;
         }
         $image->crop($top, $left, $right, $bottom);
         $image->save(Mage::getBaseDir('media') . DS . 'wysiwyg' . DS . 'crop' . DS . $images[1]);
         return Mage::getBaseUrl('media') . '/wysiwyg/crop/' . $images[1];
     } else {
         preg_match_all('/(?<!_)src=([\'"])?(.*?)\\1/', $content, $option);
         return $option[2][0];
     }
 }

 public function cropResizeImg($fileName, $tmp, $width, $height = '')
 {
     $folderURL = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA);
     $imageURL = $folderURL . $fileName;
     $basePath = $tmp;
     $newPath = Mage::getBaseDir() . DS . 'skin' . DS . 'adminhtml' . DS . 'base' . DS . 'default' . DS . 'evoque' . DS . 'images' . DS . 'Configsets' . DS . $fileName;
     if (is_file($tmp)) {
         $imageObj = new Varien_Image($basePath);
         $imageObj->constrainOnly(TRUE);
         $imageObj->keepAspectRatio(FALSE);
         $imageObj->keepFrame(FALSE);
         $currentRatio = $imageObj->getOriginalWidth() / $imageObj->getOriginalHeight();
         $targetRatio = $width / $height;
         if ($targetRatio > $currentRatio) {
             $imageObj->resize($width, null);
         } else {
             $imageObj->resize(null, $height);
         }
         $diffWidth = $imageObj->getOriginalWidth() - $width;
         $diffHeight = $imageObj->getOriginalHeight() - $height;
         //$imageObj->resize($width, $height);
         $imageObj->crop(floor($diffHeight * 0.5), floor($diffWidth / 2), ceil($diffWidth / 2), ceil($diffHeight * 0.5));
         $imageObj->save($newPath);
     }
     return $fileName;
 }