PHP Image::crop方法代码示例

 /**
  * @inheritdoc
  */
 public function run()
 {
     if (Yii::$app->request->isPost) {
         $file = UploadedFile::getInstanceByName($this->uploadParam);
         $model = new DynamicModel(compact($this->uploadParam));
         $model->addRule($this->uploadParam, 'file', ['maxSize' => $this->maxSize, 'tooBig' => Yii::t('upload', 'TOO_BIG_ERROR', ['size' => $this->maxSize / (1024 * 1024)]), 'extensions' => explode(', ', $this->extensions), 'checkExtensionByMimeType' => false, 'wrongExtension' => Yii::t('upload', 'EXTENSION_ERROR', ['formats' => $this->extensions])])->validate();
         if ($model->hasErrors()) {
             $result = ['error' => $model->getFirstError($this->uploadParam)];
         } else {
             $model->{$this->uploadParam}->name = uniqid() . '.' . $model->{$this->uploadParam}->extension;
             $request = Yii::$app->request;
             $image_name = $this->temp_path . $model->{$this->uploadParam}->name;
             $image = Image::crop($file->tempName . $request->post('filename'), intval($request->post('w')), intval($request->post('h')), [$request->post('x'), $request->post('y')])->resize(new Box($this->width, $this->height))->save($image_name);
             // watermark
             if ($this->watermark != '') {
                 $image = Image::watermark($image_name, $this->watermark)->save($image_name);
             }
             if ($image->save($image_name)) {
                 // create Thumbnail
                 if ($this->thumbnail && ($this->thumbnail_width > 0 && $this->thumbnail_height > 0)) {
                     Image::thumbnail($this->temp_path . $model->{$this->uploadParam}->name, $this->thumbnail_width, $this->thumbnail_height)->save($this->temp_path . '/thumbs/' . $model->{$this->uploadParam}->name);
                 }
                 $result = ['filelink' => $model->{$this->uploadParam}->name];
             } else {
                 $result = ['error' => Yii::t('upload', 'ERROR_CAN_NOT_UPLOAD_FILE')];
             }
         }
         Yii::$app->response->format = Response::FORMAT_JSON;
         return $result;
     } else {
         throw new BadRequestHttpException(Yii::t('upload', 'ONLY_POST_REQUEST'));
     }
 }

 public function actionCrop($id)
 {
     $model = $this->findModel($id);
     $type = \Yii::$app->getRequest()->post("type");
     $x = \Yii::$app->getRequest()->post("x");
     $y = \Yii::$app->getRequest()->post("y");
     $w = \Yii::$app->getRequest()->post("w");
     $h = \Yii::$app->getRequest()->post("h");
     switch ($type) {
         case CropType::ALL:
             $original = $model->getAbsolutePath();
             Image::crop($original, $w, $h, [$x, $y])->save($original);
             $model->deleteThumbs();
             break;
         case CropType::THUMBNAIL:
             $original = $model->getAbsolutePath();
             $newPath = $model->getTempDirectory() . DIRECTORY_SEPARATOR . $model->hash . "." . $model->extension;
             $newOriginal = \Yii::$app->get("fileStorage")->getPath($newPath);
             Image::crop($original, $w, $h, [$x, $y])->save($newOriginal);
             $thumbs = $model->getThumbs();
             foreach ($thumbs as $path) {
                 $fileName = ltrim(pathinfo(" " . $path, PATHINFO_FILENAME));
                 $parts = explode("_", $fileName);
                 list($w, $h) = explode("x", $parts[2]);
                 Image::thumbnail($newOriginal, $w, $h)->save(\Yii::$app->get("fileStorage")->getPath($path));
             }
             \Yii::$app->get("fileStorage")->delete($newPath);
             break;
         case CropType::ORIGINAL:
             $original = $model->getAbsolutePath();
             Image::crop($original, $w, $h, [$x, $y])->save($original);
             break;
     }
     return $this->renderJsonMessage(true, "裁剪成功");
 }

 /**
  * @inheritdoc
  */
 public function run()
 {
     if (Yii::$app->request->isPost) {
         $file = UploadedFile::getInstanceByName($this->uploadParam);
         $model = new DynamicModel(compact($this->uploadParam));
         $model->addRule($this->uploadParam, 'image', ['maxSize' => $this->maxSize, 'tooBig' => Yii::t('cropper', 'TOO_BIG_ERROR', ['size' => $this->maxSize / (1024 * 1024)]), 'extensions' => explode(', ', $this->extensions), 'wrongExtension' => Yii::t('cropper', 'EXTENSION_ERROR', ['formats' => $this->extensions])])->validate();
         if ($model->hasErrors()) {
             $result = ['error' => $model->getFirstError($this->uploadParam)];
         } else {
             $model->{$this->uploadParam}->name = uniqid() . '.' . $model->{$this->uploadParam}->extension;
             $request = Yii::$app->request;
             $width = $request->post('width', $this->width);
             $height = $request->post('height', $this->height);
             $image = Image::crop($file->tempName . $request->post('filename'), intval($request->post('w')), intval($request->post('h')), [$request->post('x'), $request->post('y')])->resize(new Box($width, $height));
             if ($image->save($this->path . $model->{$this->uploadParam}->name)) {
                 $result = ['filelink' => $this->url . $model->{$this->uploadParam}->name];
             } else {
                 $result = ['error' => Yii::t('cropper', 'ERROR_CAN_NOT_UPLOAD_FILE')];
             }
         }
         Yii::$app->response->format = Response::FORMAT_JSON;
         return $result;
     } else {
         throw new BadRequestHttpException(Yii::t('cropper', 'ONLY_POST_REQUEST'));
     }
 }

 /**
  * 裁剪图片
  * @param $filename string 图片全路径（./uploads/editor/20150516/demo.jpg）
  * @param int    $width  裁剪后的宽
  * @param int    $height 裁剪后的高
  * @param string $qz     裁剪后图片的前缀
  * @param string $type   裁剪类型 [居中裁剪（'center'）]
  * @return string
  */
 public static function crop($filename, $width = 200, $height = 200, $qz = 'crop_', $type = 'center')
 {
     // 获取图片居中裁剪的 x坐标，y坐标
     $info = getimagesize($filename);
     // 判断，裁剪后图片的宽高不能大于原图的宽高
     if ($info[0] < $width) {
         $width = $info[0];
     }
     if ($info[1] < $height) {
         $height = $info[1];
     }
     switch ($type) {
         // 目前我只用到了居中裁剪，需要其他的裁剪方式自己加就好了
         case 'center':
             // 居中裁剪坐标
             $x = ($info[0] - $width) * 0.5;
             $y = ($info[1] - $height) * 0.5;
             break;
         default:
             // 默认居中裁剪坐标
             $x = ($info[0] - $width) * 0.5;
             $y = ($info[1] - $height) * 0.5;
     }
     $saveName = self::qz($filename, $qz);
     // 保存图片
     Image::crop($filename, $width, $height, [$x, $y])->save($saveName);
     // save()方法有第二个参数数组，可以设置保存图片的质量 save($savename, ['quality' => 80]);
     return trim($saveName, './');
 }

 public function testCrop()
 {
     $point = [20, 20];
     $img = Image::crop($this->imageFile, 100, 100, $point);
     $this->assertEquals(100, $img->getSize()->getWidth());
     $this->assertEquals(100, $img->getSize()->getHeight());
 }

 public function ImageCrop($pathToImg = "", $params = [])
 {
     $imageSize = getimagesize($pathToImg);
     $width = $imageSize[0];
     $height = $imageSize[1];
     list($imgWidth, $imgHeight) = explode(":", $params["crop"]);
     $centerWidth = $width / 2 - $imgWidth / 2;
     $centerHeight = $height / 2 - $imgHeight / 2;
     Image::crop($pathToImg, $imgWidth, $imgHeight, [$centerWidth, $centerHeight])->save($pathToImg, ["quality" => 100]);
 }

 public function actionAvatar()
 {
     $user = $this->finder->findUserById(Yii::$app->user->identity->getId());
     if (\Yii::$app->getRequest()->isAjax) {
         $avatar = \Yii::$app->getRequest()->post("avatar");
         $x = \Yii::$app->getRequest()->post("x");
         $y = \Yii::$app->getRequest()->post("y");
         $w = \Yii::$app->getRequest()->post("w");
         $h = \Yii::$app->getRequest()->post("h");
         $original = \Yii::$app->get("fileStorage")->getPath($avatar);
         Image::crop($original, $w, $h, [$x, $y])->save($original);
         $user->saveAvatar($avatar);
         Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
         $message = Yii::createObject('\\hass\\base\\classes\\JSONMessage', [true, "保存成功"]);
         $result = $message->getArray();
         return $result;
     }
     return $this->render('avatar', ['user' => $user]);
 }

 public function applyFilter($loadFromPath, $imageSavePath)
 {
     if (!$this->evalMethod()) {
         throw new InvalidConfigException('The requested effect mode ' . $this->effect->imagine_name . ' is not supported');
     }
     if (!$this->evalRequiredMethodParams()) {
         throw new InvalidConfigException("The requested effect mode does require some parameters which are not provided.");
     }
     switch ($this->effect->imagine_name) {
         case "crop":
             $image = Image::crop($loadFromPath, $this->getMethodParam('width'), $this->getMethodParam('height'));
             Image::autoRotate($image)->save($imageSavePath, $this->getMethodParam('saveOptions'));
             break;
         case "thumbnail":
             $image = Image::thumbnail($loadFromPath, $this->getMethodParam('width'), $this->getMethodParam('height'), $this->getMethodParam('mode'));
             Image::autoRotate($image)->save($imageSavePath, $this->getMethodParam('saveOptions'));
             break;
     }
 }

 /**
  * @inheritdoc
  */
 public function run()
 {
     if (Yii::$app->request->isPost) {
         $data = Yii::$app->request->post();
         if (!empty($data['url'])) {
             try {
                 $crop = [];
                 if (!empty($data['crop'])) {
                     $crop = explode(',', $data['crop']);
                     if (count($crop) !== 4) {
                         return Json::encode(['errors' => ['Invalid crop options!']]);
                     }
                     foreach ($crop as $c) {
                         if (!is_numeric(trim($c)) || trim($c) < 0 || trim($c) > 1) {
                             return Json::encode(['errors' => ['Invalid crop options!']]);
                         }
                     }
                 }
                 $url = $data['url'];
                 $url = str_replace(Yii::$app->request->baseUrl, '', $url);
                 if (substr($url, 0, 1) == '/') {
                     $url = substr($url, 1);
                 }
                 if (strpos($url, '?_ignore=') !== false) {
                     $url = substr($url, 0, strpos($url, '?_ignore='));
                 }
                 if (!empty($crop)) {
                     list($width, $height) = getimagesize($url);
                     Image::crop($url, floor($width * trim($crop[3]) - $width * trim($crop[1])), floor($height * trim($crop[2]) - $height * trim($crop[0])), [floor($width * trim($crop[1])), floor($height * trim($crop[0]))])->save($url);
                 }
                 list($width, $height) = getimagesize($url);
                 return Json::encode(['size' => [$width, $height], 'url' => Yii::$app->request->baseUrl . '/' . $url, 'alt' => basename($url)]);
             } catch (Exception $e) {
                 return Json::encode(['errors' => [$e->getMessage()]]);
             }
         } else {
             return Json::encode(['errors' => ['Invalid insert options!']]);
         }
     }
 }

 /**
  * Crop image
  * @param UploadedFile $file
  * @param array $coords
  * @param array $options
  * @return \Imagine\Image\ManipulatorInterface
  */
 private function crop($file, array $coords, array $options)
 {
     if (isset($options['width']) && !isset($options['height'])) {
         $width = $options['width'];
         $height = $options['width'] * $coords['h'] / $coords['w'];
     } elseif (!isset($options['width']) && isset($options['height'])) {
         $width = $options['height'] * $coords['w'] / $coords['h'];
         $height = $options['height'];
     } elseif (isset($options['width']) && isset($options['height'])) {
         $width = $options['width'];
         $height = $options['height'];
     } else {
         $width = $coords['w'];
         $height = $coords['h'];
     }
     return Image::crop($file->tempName, $coords['w'], $coords['h'], [$coords['x'], $coords['y']])->resize(new Box($width, $height));
 }

 function createPoster($imageName)
 {
     $newWidth = 1980;
     $newHeight = 562;
     $mime = getimagesize($imageName);
     if ($mime['mime'] == 'image/png') {
         $src_img = imagecreatefrompng($imageName);
     }
     if ($mime['mime'] == 'image/jpg') {
         $src_img = imagecreatefromjpeg($imageName);
     }
     if ($mime['mime'] == 'image/jpeg') {
         $src_img = imagecreatefromjpeg($imageName);
     }
     if ($mime['mime'] == 'image/pjpeg') {
         $src_img = imagecreatefromjpeg($imageName);
     }
     $old_x = imageSX($src_img);
     $old_y = imageSY($src_img);
     if ($old_x > $old_y) {
         $thumb_w = $newWidth;
         $thumb_h = $old_y / $old_x * $newWidth;
     }
     if ($old_x < $old_y) {
         $thumb_w = $old_x / $old_y * $newHeight;
         $thumb_h = $newHeight;
     }
     if ($old_x == $old_y) {
         $thumb_w = $newWidth;
         $thumb_h = $newHeight;
     }
     $dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
     imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
     if ($mime['mime'] == 'image/png') {
         $result = imagepng($dst_img, $imageName, 8);
     }
     if ($mime['mime'] == 'image/jpg') {
         $result = imagejpeg($dst_img, $imageName, 80);
     }
     if ($mime['mime'] == 'image/jpeg') {
         $result = imagejpeg($dst_img, $imageName, 80);
     }
     if ($mime['mime'] == 'image/pjpeg') {
         $result = imagejpeg($dst_img, $imageName, 80);
     }
     imagedestroy($dst_img);
     imagedestroy($src_img);
     if ($thumb_w != $newWidth) {
         Image::crop($imageName, $newWidth, $newHeight, [($thumb_w - $newWidth) / 2, 0])->save($imageName, ['quality' => 80]);
     }
     if ($thumb_h != $newHeight) {
         Image::crop($imageName, $newWidth, $newHeight, [0, ($thumb_h - $newHeight) / 2])->save($imageName, ['quality' => 80]);
     }
 }

 /**
  * 头像图片处理
  *
  * @param string $fileName 待处理文件名(包括完整的路径)
  * @param string $extName 图片扩展名
  *  - 图片扩展名暂时支持jpeg/jpg/png/gif
  * @return boolean|string
  */
 protected function process($fileName, $extName, $options)
 {
     $tmpFileName = time() . mt_rand(10000, 99999) . '.' . $extName;
     $tmpFile = $this->tmpPath . $tmpFileName;
     $img = Image::getImagine()->open(Yii::getAlias($fileName));
     $size = ['width' => $img->getSize()->getWidth(), 'height' => $img->getSize()->getHeight()];
     // 提供默认参数
     $defPointer = [0, 0];
     $defSize = $size['width'] > $size['height'] ? $size['height'] : $size['width'];
     if (!$options) {
         $options = ['pointer' => $defPointer, 'size' => $defSize];
     } else {
         if (!isset($options['pointer'])) {
             $options['pointer'] = $defPointer;
         }
         if (!isset($options['size'])) {
             $options['size'] = $defSize;
         }
         $options['pointer'] = array_map('intval', $options['pointer']);
         $remSize = ['width' => $size['width'] - $options['pointer'][0], 'height' => $size['height'] - $options['pointer'][1]];
         $refSize = $remSize['width'] > $remSize['height'] ? $remSize['height'] : $remSize['width'];
         if ($refSize < $options['size']) {
             $options['size'] = $refSize;
         }
     }
     try {
         // XXX: 两个操作是否可以合并为一个
         Image::crop($fileName, $options['size'], $options['size'], $options['pointer'])->save(Yii::getAlias($tmpFile), ['quality' => self::IMAGE_QUALITY]);
         Image::thumbnail($tmpFile, self::AVATAR_SIZE, self::AVATAR_SIZE)->save(Yii::getAlias($tmpFile), ['quality' => self::IMAGE_QUALITY]);
     } catch (\Exception $e) {
         return false;
     }
     return $tmpFileName;
 }

 /**
  * action UploadFile
  */
 public function actionUploadFile()
 {
     $avatar = new Avatar();
     $avatar->upload('avatar');
     exit;
     $file = UploadedFile::getInstanceByName('myfile');
     /*
             Image::thumbnail($file->tempName, 120, 120)
            ->save(Yii::getAlias('/tmp/test.jpg'), ['quality' => 80]);
     */
     Image::crop($file->tempName, 100, 100, [100, 100])->save(Yii::getAlias('/tmp/test2.jpg'), ['quality' => 80]);
     echo 'good';
     exit;
     /*
     $oss = new Oss();
     $file = '/tmp/1455812025.jpg';
     $obj = date('Ym/') . 'test.jpg';
     $result = $oss->upload_by_file('cyj-i-test', $obj, $file);
     
     var_dump($result);
     */
 }