diff options
Diffstat (limited to 'classes/TidypicsImage.php')
| -rw-r--r-- | classes/TidypicsImage.php | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/classes/TidypicsImage.php b/classes/TidypicsImage.php new file mode 100644 index 000000000..531d54912 --- /dev/null +++ b/classes/TidypicsImage.php @@ -0,0 +1,292 @@ +<?php +/** + * Tidypics Image class + * + * @package TidypicsImage + */ + + +class TidypicsImage extends ElggFile { + protected function initialise_attributes() { + parent::initialise_attributes(); + + $this->attributes['subtype'] = "image"; + } + + public function __construct($guid = null) { + parent::__construct($guid); + } + + /** + * delete image + * + * @return bool + */ + public function delete() { + + // check if batch should be deleted + $batch = elgg_get_entities_from_relationship(array( + 'relationship' => 'belongs_to_batch', + 'relationship_guid' => $this->guid, + 'inverse_relationship' => false, + )); + if ($batch) { + $batch = $batch[0]; + $count = elgg_get_entities_from_relationship(array( + 'relationship' => 'belongs_to_batch', + 'relationship_guid' => $batch->guid, + 'inverse_relationship' => true, + 'count' => true, + )); + if ($count == 1) { + // last image so delete batch + $batch->delete(); + } + } + + $album = get_entity($this->container_guid); + if ($album) { + $album->removeImage($this->guid); + } + + $this->removeThumbnails(); + + // update quota + $owner = $this->getOwnerEntity(); + $owner->image_repo_size = (int)$owner->image_repo_size - $this->size(); + + return parent::delete(); + } + + /** + * Set the internal filenames + * + * @warning container needs to be set first + */ + public function setOriginalFilename($originalName) { + $prefix = "image/" . $this->container_guid . "/"; + $filestorename = elgg_strtolower(time() . $originalName); + $this->setFilename($prefix . $filestorename); + $this->originalfilename = $originalName; + } + + /** + * Save the uploaded image + * + * @warning filename needs to be set first + * + * @param string $uploadedFilename name of the uploaded file + * @param int $size + */ + public function saveImageFile($uploadedFilename, $size) { + + // we need to make sure the directory for the album exists + // @note for group albums, the photos are distributed among the users + $dir = tp_get_img_dir() . $this->getContainer(); + if (!file_exists($dir)) { + mkdir($dir, 0755, true); + } + + $filename = $this->getFilenameOnFilestore(); + + $result = move_uploaded_file($uploadedFilename, $filename); + if (!$result) { + return false; + } + + $owner = $this->getOwnerEntity(); + $owner->image_repo_size = (int)$owner->image_repo_size + $size; + + return true; + } + + /** + * Save the image thumbnails + * + * @warning container guid and filename must be set + * + * @param string $imageLib + */ + public function saveThumbnails($imageLib) { + include_once dirname(dirname(__FILE__)) . "/lib/resize.php"; + + $prefix = "image/" . $this->container_guid . "/"; + $filename = $this->getFilename(); + $filename = substr($filename, strrpos($filename, '/') + 1); + + if ($imageLib == 'ImageMagick') { + // ImageMagick command line + if (tp_create_im_cmdline_thumbnails($this, $prefix, $filename) != true) { + trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick command line', E_USER_WARNING); + } + } else if ($imageLib == 'ImageMagickPHP') { + // imagick php extension + if (tp_create_imagick_thumbnails($this, $prefix, $filename) != true) { + trigger_error('Tidypics warning: failed to create thumbnails - ImageMagick PHP', E_USER_WARNING); + } + } else { + if (tp_create_gd_thumbnails($this, $prefix, $filename) != true) { + trigger_error('Tidypics warning: failed to create thumbnails - GD', E_USER_WARNING); + } + } + } + + /** + * Extract EXIF Data from image + * + * @warning image file must be saved first + */ + public function extractExifData() { + include_once dirname(dirname(__FILE__)) . "/lib/exif.php"; + td_get_exif($this); + } + + /** + * Has the photo been tagged with "in this photo" tags + * + * @return true/false + */ + public function isPhotoTagged() { + $num_tags = count_annotations($this->getGUID(), 'object', 'image', 'phototag'); + if ($num_tags > 0) { + return true; + } else { + return false; + } + } + + /** + * Get an array of photo tag information + * + * @return array of json representations of the tags and the tag link text + */ + public function getPhotoTags() { + global $CONFIG; + + // get tags as annotations + $photo_tags = get_annotations($this->getGUID(), 'object', 'image', 'phototag'); + if (!$photo_tags) { + // no tags or user doesn't have permission to tags, so return + return false; + } + + $photo_tags_json = "["; + foreach ($photo_tags as $p) { + $photo_tag = unserialize($p->value); + + // create link to page with other photos tagged with same tag + $phototag_text = $photo_tag->value; + $phototag_link = $CONFIG->wwwroot . 'search/?tag=' . $phototag_text . '&subtype=image&object=object'; + if ($photo_tag->type === 'user') { + $user = get_entity($photo_tag->value); + if ($user) { + $phototag_text = $user->name; + } else { + $phototag_text = "unknown user"; + } + + $phototag_link = $CONFIG->wwwroot . "pg/photos/tagged/" . $photo_tag->value; + } + + if (isset($photo_tag->x1)) { + // hack to handle format of Pedro Prez's tags - ugh + $photo_tag->coords = "\"x1\":\"{$photo_tag->x1}\",\"y1\":\"{$photo_tag->y1}\",\"width\":\"{$photo_tag->width}\",\"height\":\"{$photo_tag->height}\""; + $photo_tags_json .= '{' . $photo_tag->coords . ',"text":"' . $phototag_text . '","id":"' . $p->id . '"},'; + } else { + $photo_tags_json .= '{' . $photo_tag->coords . ',"text":"' . $phototag_text . '","id":"' . $p->id . '"},'; + } + + // prepare variable arrays for tagging view + $photo_tag_links[$p->id] = array('text' => $phototag_text, 'url' => $phototag_link); + } + + $photo_tags_json = rtrim($photo_tags_json,','); + $photo_tags_json .= ']'; + + $ret_data = array('json' => $photo_tags_json, 'links' => $photo_tag_links); + return $ret_data; + } + + /** + * Get the view information for this image + * + * @param $viewer_guid the guid of the viewer (0 if not logged in) + * @return array with number of views, number of unique viewers, and number of views for this viewer + */ + public function getViews($viewer_guid) { + $views = get_annotations($this->getGUID(), "object", "image", "tp_view", "", 0, 99999); + if ($views) { + $total_views = count($views); + + if ($this->owner_guid == $viewer_guid) { + // get unique number of viewers + foreach ($views as $view) { + $diff_viewers[$view->owner_guid] = 1; + } + $unique_viewers = count($diff_viewers); + } + else if ($viewer_guid) { + // get the number of times this user has viewed the photo + $my_views = 0; + foreach ($views as $view) { + if ($view->owner_guid == $viewer_guid) { + $my_views++; + } + } + } + + $view_info = array("total" => $total_views, "unique" => $unique_viewers, "mine" => $my_views); + } + else { + $view_info = array("total" => 0, "unique" => 0, "mine" => 0); + } + + return $view_info; + } + + /** + * Add a tidypics view annotation to this image + * + * @param $viewer_guid + * @return none + */ + public function addView($viewer_guid) { + if ($viewer_guid != $this->owner_guid && tp_is_person()) { + create_annotation($this->getGUID(), "tp_view", "1", "integer", $viewer_guid, ACCESS_PUBLIC); + } + } + + /** + * Remove thumbnails - usually in preparation for deletion + * + * The thumbnails are not actually ElggObjects so we create + * temporary objects to delete them. + */ + protected function removeThumbnails() { + $thumbnail = $this->thumbnail; + $smallthumb = $this->smallthumb; + $largethumb = $this->largethumb; + + //delete standard thumbnail image + if ($thumbnail) { + $delfile = new ElggFile(); + $delfile->owner_guid = $this->getOwner(); + $delfile->setFilename($thumbnail); + $delfile->delete(); + } + //delete small thumbnail image + if ($smallthumb) { + $delfile = new ElggFile(); + $delfile->owner_guid = $this->getOwner(); + $delfile->setFilename($smallthumb); + $delfile->delete(); + } + //delete large thumbnail image + if ($largethumb) { + $delfile = new ElggFile(); + $delfile->owner_guid = $this->getOwner(); + $delfile->setFilename($largethumb); + $delfile->delete(); + } + } +} |