diff options
Diffstat (limited to 'modules/gallery/helpers/photo.php')
| -rw-r--r-- | modules/gallery/helpers/photo.php | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/modules/gallery/helpers/photo.php b/modules/gallery/helpers/photo.php new file mode 100644 index 00000000..c1c005f5 --- /dev/null +++ b/modules/gallery/helpers/photo.php @@ -0,0 +1,171 @@ +<?php defined("SYSPATH") or die("No direct script access."); +/** + * Gallery - a web based photo album viewer and editor + * Copyright (C) 2000-2009 Bharat Mediratta + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * This is the API for handling photos. + * + * Note: by design, this class does not do any permission checking. + */ +class photo_Core { + /** + * Create a new photo. + * @param integer $parent_id id of parent album + * @param string $filename path to the photo file on disk + * @param string $name the filename to use for this photo in the album + * @param integer $title the title of the new photo + * @param string $description (optional) the longer description of this photo + * @return Item_Model + */ + static function create($parent, $filename, $name, $title, + $description=null, $owner_id=null) { + if (!$parent->loaded || !$parent->is_album()) { + throw new Exception("@todo INVALID_PARENT"); + } + + if (!is_file($filename)) { + throw new Exception("@todo MISSING_IMAGE_FILE"); + } + + if (strpos($name, "/")) { + throw new Exception("@todo NAME_CANNOT_CONTAIN_SLASH"); + } + + // We don't allow trailing periods as a security measure + // ref: http://dev.kohanaphp.com/issues/684 + if (rtrim($name, ".") != $name) { + throw new Exception("@todo NAME_CANNOT_END_IN_PERIOD"); + } + + $image_info = getimagesize($filename); + + // Force an extension onto the name + $pi = pathinfo($filename); + if (empty($pi["extension"])) { + $pi["extension"] = image_type_to_extension($image_info[2], false); + $name .= "." . $pi["extension"]; + } + + $photo = ORM::factory("item"); + $photo->type = "photo"; + $photo->title = $title; + $photo->description = $description; + $photo->name = $name; + $photo->owner_id = $owner_id ? $owner_id : user::active(); + $photo->width = $image_info[0]; + $photo->height = $image_info[1]; + $photo->mime_type = empty($image_info['mime']) ? "application/unknown" : $image_info['mime']; + $photo->thumb_dirty = 1; + $photo->resize_dirty = 1; + $photo->sort_column = "weight"; + $photo->rand_key = ((float)mt_rand()) / (float)mt_getrandmax(); + + // Randomize the name if there's a conflict + while (ORM::Factory("item") + ->where("parent_id", $parent->id) + ->where("name", $photo->name) + ->find()->id) { + // @todo Improve this. Random numbers are not user friendly + $photo->name = rand() . "." . $pi["extension"]; + } + + // This saves the photo + $photo->add_to_parent($parent); + + /* + * If the thumb or resize already exists then rename it. We need to do this after the save + * because the resize_path and thumb_path both call relative_path which caches the + * path. Before add_to_parent the relative path will be incorrect. + */ + if (file_exists($photo->resize_path()) || + file_exists($photo->thumb_path())) { + $photo->name = $pi["filename"] . "-" . rand() . "." . $pi["extension"]; + $photo->save(); + } + + copy($filename, $photo->file_path()); + + module::event("item_created", $photo); + + // Build our thumbnail/resizes + graphics::generate($photo); + + // If the parent has no cover item, make this it. + if (access::can("edit", $parent) && $parent->album_cover_item_id == null) { + item::make_album_cover($photo); + } + + return $photo; + } + + static function get_add_form($parent) { + $form = new Forge("albums/{$parent->id}", "", "post", array("id" => "gAddPhotoForm")); + $group = $form->group("add_photo")->label( + t("Add Photo to %album_title", array("album_title" =>$parent->title))); + $group->input("title")->label(t("Title")); + $group->textarea("description")->label(t("Description")); + $group->input("name")->label(t("Filename")); + $group->upload("file")->label(t("File"))->rules("required|allow[jpg,png,gif,flv,mp4]"); + $group->hidden("type")->value("photo"); + $group->submit("")->value(t("Upload")); + $form->add_rules_from(ORM::factory("item")); + return $form; + } + + static function get_edit_form($photo) { + $form = new Forge("photos/$photo->id", "", "post", array("id" => "gEditPhotoForm")); + $form->hidden("_method")->value("put"); + $group = $form->group("edit_photo")->label(t("Edit Photo")); + $group->input("title")->label(t("Title"))->value($photo->title); + $group->textarea("description")->label(t("Description"))->value($photo->description); + $group->input("filename")->label(t("Filename"))->value($photo->name) + ->error_messages("conflict", t("There is already a file with this name")) + ->callback("item::validate_no_slashes") + ->error_messages("no_slashes", t("The photo name can't contain a \"/\"")) + ->callback("item::validate_no_trailing_period") + ->error_messages("no_trailing_period", t("The photo name can't end in \".\"")); + + $group->submit("")->value(t("Modify")); + $form->add_rules_from(ORM::factory("item")); + return $form; + } + + /** + * Return scaled width and height. + * + * @param integer $width + * @param integer $height + * @param integer $max the target size for the largest dimension + * @param string $format the output format using %d placeholders for width and height + */ + static function img_dimensions($width, $height, $max, $format="width=\"%d\" height=\"%d\"") { + if (!$width || !$height) { + return ""; + } + + if ($width > $height) { + $new_width = $max; + $new_height = (int)$max * ($height / $width); + } else { + $new_height = $max; + $new_width = (int)$max * ($width / $height); + } + return sprintf($format, $new_width, $new_height); + } +} |