PHP Images::generateThumbnails方法代碼示例

 /**
  * Executes edit action.
  */
 public function executeEdit()
 {
     // populate objects for form display depending on what we are doing (creating, editing)
     $this->setEditFormInformation();
     // All modules will use the same template
     $this->setTemplate('../../documents/templates/edit');
     $document = $this->document;
     $module_name = $this->getModuleName();
     $this->document_name = $document->get('name');
     // Culture (lang) is automatically defined in Hydrate,
     // redefined in the model.
     if ($this->getRequest()->getMethod() == sfRequest::POST) {
         $lang = $this->getRequestParameter('lang');
         $user_id = $this->getUser()->getId();
         $is_minor = $this->getRequestParameter('rev_is_minor', false);
         $message = $this->getRequestParameter('rev_comment');
         $document->setCulture($lang);
         $old_lon = $document->get('lon');
         $old_lat = $document->get('lat');
         $this->setDataFields($document);
         // upload potential GPX file to server and set WKT field
         // or upload a new version of an image
         $request = $this->getRequest();
         if ($request->hasFiles()) {
             c2cTools::log('request has files');
             if ($request->getFileName('image_new_version') && $module_name == 'images') {
                 c2cTools::log('new image uploaded');
                 $base_path = sfConfig::get('sf_upload_dir') . DIRECTORY_SEPARATOR;
                 $temp_dir = $base_path . sfConfig::get('app_images_temp_directory_name');
                 $upload_dir = $base_path . sfConfig::get('app_images_directory_name');
                 $filename = $request->getFiles();
                 $unique_filename = c2cTools::generateUniqueName();
                 $file_ext = Images::detectExtension($filename['image_new_version']['tmp_name']);
                 // upload file in a temporary folder
                 $new_location = $temp_dir . DIRECTORY_SEPARATOR . $unique_filename . $file_ext;
                 sfLoader::loadHelpers(array('General'));
                 $redir_route = '@document_by_id_lang_slug?module=' . $module_name . '&id=' . $this->document->get('id') . '&lang=' . $this->document->getCulture() . '&slug=' . get_slug($this->document);
                 if (!$request->moveFile('image_new_version', $new_location)) {
                     return $this->setErrorAndRedirect('Failed moving uploaded file', $redir_route);
                 }
                 if ($file_ext == '.svg') {
                     if (!SVG::rasterize($temp_dir . DIRECTORY_SEPARATOR, $unique_filename, $file_ext)) {
                         return $this->setErrorAndRedirect('Failed rasterizing svg file', $redir_route);
                     }
                     $document->set('has_svg', true);
                 } else {
                     $document->set('has_svg', false);
                 }
                 // generate thumbnails (ie. resized images: "BI"/"SI")
                 Images::generateThumbnails($unique_filename, $file_ext, $temp_dir);
                 // move to uploaded images directory
                 if (!Images::moveAll($unique_filename . $file_ext, $temp_dir, $upload_dir)) {
                     return $this->setErrorAndRedirect('image dir unavailable', $redir_route);
                 }
                 // update filename and image properties
                 $document->set('filename', $unique_filename . $file_ext);
                 $size = getimagesize($upload_dir . DIRECTORY_SEPARATOR . $unique_filename . $file_ext);
                 if ($size) {
                     $document->set('width', $size[0]);
                     $document->set('height', $size[1]);
                 }
                 $document->set('file_size', filesize($upload_dir . DIRECTORY_SEPARATOR . $unique_filename . $file_ext));
                 // populate with new exif data, if any...
                 $document->populateWithExifDataFrom($upload_dir . DIRECTORY_SEPARATOR . $unique_filename . $file_ext);
             }
             if ($request->getFileName('gps_data') && in_array($module_name, array('routes', 'outings'))) {
                 // it is necessary to preserve both tests nested.
                 if ($wkt = $this->getWktFromFileUpload($request)) {
                     c2cTools::log('wkt extracted');
                     $document->set('geom_wkt', $wkt);
                     // NB: these fields exist in both objects for which a file upload is possible (outings, routes)
                     $_a = ParseGeo::getCumulatedHeightDiffFromWkt($wkt);
                     if (!$document->get('height_diff_up')) {
                         $document->set('height_diff_up', $_a['up']);
                         c2cTools::log('height diff up set from wkt : ' . $_a['up']);
                     }
                     if (!$document->get('height_diff_down')) {
                         $document->set('height_diff_down', $_a['down']);
                         c2cTools::log('height diff down set from wkt : ' . $_a['down']);
                     }
                     $message = '[geodata] ' . (!$message ? "Edit with geometry upload" : $message);
                 } else {
                     $this->getRequest()->setError('gps_data', 'invalid gpx file');
                     return false;
                 }
             }
         }
         if (count($this->document->getModified()) == 0 && count($this->document->getCurrentI18nObject()->getModified()) == 0) {
             // no change of the document was detected
             // => redirects to the document without saving anything
             $this->redirectToView();
             return;
         }
         // we prevent here concurrent edition :
         // fake data so that second test always fails on summit creation (and when document is an archive) :
         $rev_when_edition_begun = 1;
         $current_rev = 0;
//.........這裏部分代碼省略.........

 private function handleImage($image_name, $tmp_name, $temp_dir, $index = 1)
 {
     // copy the image to the temp directory
     $filename = $tmp_name;
     $unique_filename = c2cTools::generateUniqueName();
     $file_ext = Images::detectExtension($filename);
     $new_location = $temp_dir . $unique_filename . $file_ext;
     if (!move_uploaded_file($filename, $new_location)) {
         return array('error' => array('field' => 'image_file', 'msg' => 'Failed moving uploaded file'));
     }
     // svg
     if ($file_ext == '.svg') {
         if (!SVG::rasterize($temp_dir, $unique_filename, $file_ext)) {
             return array('error' => array('field' => 'image_file', 'msg' => 'Failed rasterizing svg file'));
         }
     }
     // if jpg, check if we need orientation changes
     if ($file_ext == '.jpg') {
         Images::correctOrientation($new_location);
     }
     // generate thumbnails
     Images::generateThumbnails($unique_filename, $file_ext, $temp_dir);
     // look iptc for a possible title (jpeg only)
     if ($file_ext == '.jpg') {
         $size = getimagesize($new_location, $info);
         if (isset($info['APP13'])) {
             $iptc = iptcparse($info['APP13']);
             if (isset($iptc['2#105'])) {
                 $image_title = trim($iptc['2#105'][0]);
             } else {
                 if (isset($iptc['2#120'])) {
                     $image_title = trim($iptc['2#120'][0]);
                 }
             }
         }
     }
     if (isset($image_title)) {
         $encoding = mb_detect_encoding($image_title, "UTF-8, ISO-8859-1, ISO-8859-15", true);
         if ($encoding !== false) {
             if ($encoding != 'UTF-8') {
                 $image_title = mb_convert_encoding($image_title, 'UTF-8', $encoding);
             } else {
                 $image_title = $image_title;
             }
         }
         // if encoding could not be detected, rather not try to put it as prefilled title
     }
     // we are also interested at this point on the exif date in order to reorder images on the client side
     if ($file_ext == '.jpg' && ($exif = exif_read_data($new_location))) {
         if (isset($exif['DateTimeOriginal'])) {
             $image_date = str_replace(' ', ':', $exif['DateTimeOriginal']);
             $image_date = explode(':', $image_date);
             $image_date = mktime($image_date[3], $image_date[4], $image_date[5], $image_date[1], $image_date[2], $image_date[0]);
         }
     }
     return array('image_filename' => $unique_filename . $file_ext, 'default_license' => $this->getDefaultImageLicense($this->getRequestParameter('document_id'), $this->getRequestParameter('mod')), 'image_number' => (intval($this->getRequestparameter('image_number')) + 1) * 1000 + $index, 'image_title' => isset($image_title) ? $image_title : null, 'image_datetime' => isset($image_date) && $image_date ? $image_date : null);
 }