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67 lines
2.2 KiB
67 lines
2.2 KiB
<?php |
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/** |
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* @file |
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* |
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* This file contains all the functions for image manipulation used in the |
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* basic image solution pack. |
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*/ |
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function islandora_basic_image_create_all_derivatives($object) { |
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module_load_include('inc', 'islandora', 'includes/mime.detect'); |
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module_load_include('inc', 'islandora_basic_image', 'includes/image_process'); |
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$mime_class = new MimeDetect(); |
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if (!isset($object['OBJ'])) { |
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drupal_set_message(t('Could not create image derivatives for %s. No image file was uploaded.', array('%s' => $object->id)),'error'); |
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return ""; |
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} |
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$ext = $mime_class->getExtension($object['OBJ']->mimeType); |
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$file_name = str_replace(':', '-', $object->id); |
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$original_file = file_save_data($object['OBJ']->content, 'temporary://' . $file_name . 'OBJ.' . $ext); |
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$tn_file = file_copy($original_file, 'temporary://' . $file_name . 'TN.' . $ext); |
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if (islandora_basic_image_create_derivative($tn_file, 200, 200)) { |
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islandora_basic_image_add_datastream($object, 'TN', $tn_file); |
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} |
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$medium_file = file_copy($original_file, 'temporary://' . $file_name . 'MEDIUM.' . $ext); |
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if (islandora_basic_image_create_derivative($medium_file, 500, 700)) { |
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islandora_basic_image_add_datastream($object, 'MEDIUM_SIZE', $medium_file); |
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} |
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file_delete($original_file); |
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} |
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/** |
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* |
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* @param object $file |
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* stdclass |
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*/ |
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function islandora_basic_image_create_derivative($file, $width, $height) { |
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$real_path = drupal_realpath($file->uri); |
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$image = image_load($real_path); |
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if (!empty($image)) { |
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$scale = image_scale($image, $width, $height, TRUE); |
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if ($scale) { |
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return image_save($image); |
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} |
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} |
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return FALSE; |
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} |
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/** |
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* adds a datastream and deletes the tmp file from local file system |
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* @param object $object |
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* @param string $dsid |
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* @param object $file |
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*/ |
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function islandora_basic_image_add_datastream($object, $dsid, $file) { |
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try { |
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$ds = $object->constructDatastream($dsid, 'M'); |
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$ds->label = $dsid; |
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$ds->mimeType = $object['OBJ']->mimeType; |
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$ds->setContentFromFile(drupal_realpath($file->uri)); |
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$object->ingestDatastream($ds); |
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file_delete($file); |
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} catch (exception $e) { |
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drupal_set_message(t('@message', array('@message' => check_plain($e->getMessage()))), 'error'); |
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} |
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} |
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