From f2739d28f74eaa1362e4485650a34ce8007c118b Mon Sep 17 00:00:00 2001
From: dmolavi <dmolavi@gmail.com>
Date: Thu, 19 Aug 2010 08:25:44 +0800
Subject: [PATCH] Initial commit of autorotate module.

---
 modules/autorotate/helpers/autorotate.php     | 49 +++++++++++++++++++
 .../autorotate/helpers/autorotate_event.php   | 32 ++++++++++++
 .../helpers/autorotate_installer.php          | 42 ++++++++++++++++
 modules/autorotate/module.info                |  3 ++
 4 files changed, 126 insertions(+)
 create mode 100644 modules/autorotate/helpers/autorotate.php
 create mode 100644 modules/autorotate/helpers/autorotate_event.php
 create mode 100644 modules/autorotate/helpers/autorotate_installer.php
 create mode 100644 modules/autorotate/module.info

diff --git a/modules/autorotate/helpers/autorotate.php b/modules/autorotate/helpers/autorotate.php
new file mode 100644
index 00000000..ddf74b78
--- /dev/null
+++ b/modules/autorotate/helpers/autorotate.php
@@ -0,0 +1,49 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2010 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.
+ */
+class autorotate {
+	static function rotate_item($item) {
+		// Only try to rotate photos based on EXIF 
+		if ($item->is_photo() && $item->mime_type == "image/jpeg") {
+		  require_once(MODPATH . "exif/lib/exif.php");
+		  $exif_raw = read_exif_data_raw($item->file_path(), false);
+		  if (isset($exif_raw['ValidEXIFData'])) {		
+			$orientation = $exif_raw["IFD0"]["Orientation"];
+			$degrees = 0;
+			if ($orientation == '3: Upside-down') {
+				$degrees = 180;
+			}
+			else if ($orientation == '8: 90 deg CW') {
+				$degrees = -90;
+			}
+			else if ($orientation == '6: 90 deg CCW') {
+				$degrees = 90;
+			}
+			if($degrees) {
+				$tmpfile = tempnam(TMPPATH, "rotate");
+				gallery_graphics::rotate($item->file_path(), $tmpfile, array("degrees" => $degrees));
+				$item->set_data_file($tmpfile);
+				$item->save();
+				unlink($tmpfile);			
+			}
+		  }
+		}
+		return;
+	}
+}
\ No newline at end of file
diff --git a/modules/autorotate/helpers/autorotate_event.php b/modules/autorotate/helpers/autorotate_event.php
new file mode 100644
index 00000000..f8307215
--- /dev/null
+++ b/modules/autorotate/helpers/autorotate_event.php
@@ -0,0 +1,32 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2010 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.
+ */
+class autorotate_event_Core {
+  // The assumption is that the exception was logged at a lower level, but we
+  // don't want to screw up the processing that was generating the notification
+  // so we don't pass the exception up the call stack
+  static function add_photos_form_completed($item, $form) {
+    try {
+      autorotate::rotate_item($item);
+    } catch (Exception $e) {
+      Kohana_Log::add("error", "@todo autorotate_event::item_created() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+    }
+  }
+}
\ No newline at end of file
diff --git a/modules/autorotate/helpers/autorotate_installer.php b/modules/autorotate/helpers/autorotate_installer.php
new file mode 100644
index 00000000..8ae94fda
--- /dev/null
+++ b/modules/autorotate/helpers/autorotate_installer.php
@@ -0,0 +1,42 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2010 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class autorotate_installer {
+  static function install() {
+    module::set_version("autorotate", 1);
+  }
+
+  static function upgrade($version) {
+    if ($version == 1) {
+      module::set_version("autorotate", $version = 1);
+    }
+  }
+
+  static function deactivate() {
+    site_status::clear("autorotate_needs_exif");
+  }
+
+  static function can_activate() {
+    $messages = array();
+    if (!module::is_active("exif")) {
+      $messages["warn"][] = t("The autorotate module requires the EXIF module.");
+    }
+    return $messages;
+  }
+}
\ No newline at end of file
diff --git a/modules/autorotate/module.info b/modules/autorotate/module.info
new file mode 100644
index 00000000..17c62229
--- /dev/null
+++ b/modules/autorotate/module.info
@@ -0,0 +1,3 @@
+name = "Autorotate"
+description = "Rotate an image automatically on upload based on EXIF data"
+version = 1
\ No newline at end of file