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-rw-r--r--classes/TidypicsImage.php292
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diff --git a/classes/TidypicsImage.php b/classes/TidypicsImage.php
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+<?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=' . $phototag_text . '&amp;subtype=image&amp;object=object';
+ if ($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();
+ }
+ }
+}
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