Haven’t had much time really to transition (and relax) from Canonical to Collabora, apart from last week, which I spent skiing, but hey, new year, new life, as we say in Spain, so the sooner you start with your new life, the better.

But thanks to the help of Carlos García Campos (famous Evince/poppler hacker), I cooked up a patch for Poppler to add API to be able to set the metadata, and, right after that, wrote a very simple GTK program to allow me to “fix” my ebook collection.

The Poppler patch is still not ready to be pushed upstream (my fault, lack of time in the last couple of weeks, but will fix it soon), but posting this now just in case it is useful for someone.

https://launchpad.net/ubuntugnome

The GNOME3 PPA for that team seems to be just a copy of the official GNOME3 PPA, but just in case, this is a public announcement to let people know that they shouldn’t use that PPA (unless they really want to, of course), but use the official one instead, which is at:

https://launchpad.net/~gnome3-team/+archive/gnome3

That is, the official team is the gnome3-team, so please make sure to check your sources.list if you really want to use the official one.

Please note that this is a work very much in progress, which means that, apart from the usual problems of running unstable software, it’s got the unstability of new packages added, so please USE WITH CARE. I would suggest to use a virtual machine for testing this, but please test it and report any problems you might find. It seems to be running ok for me (on a virtual machine), but please don’t risk your every day desktop

But this is now history, since I introduce you to libsyncdaemon, a GObject wrapper on top of the DBus API which makes it very easy to communicate with SyncDaemon, as well as improving a lot the performance compared to accessing the DBus API directly (thanks to its use of caches, to avoid DBus calls repeating when no needed) and containing high level functions that would allow applications to, for instance, publish a file on Ubuntu One with just one call:

SyncdaemonDaemon *daemon = syncdaemon_daemon_new ();
syncdaemon_daemon_publish_file (daemon, "/home/user/myphoto.jpg");

But before you run to another place after seeing this C code, note that it includes bindings for many languages (Python, JavaScript, etc) for free, thanks to gobject-introspection. So, the same code in Python, for instance, would be:

daemon = Syncdaemon.Daemon ()
daemon.publish_file ("/home/user/myphoto.jpg")

So now, the next step is to start adding support for sharing/publishing files in Ubuntu One to many desktop applications, like, for instance (ideas stolen from Stuart Langridge):

• Publish screenshots directly from gnome-screenshot tool
• Sharing photos from f-spot/shotwell/etc
• etc…

This, along with the already existing desktop APIs (desktopcouch, couchdb-glib, libubuntuone), makes integration of 3rd party applications into Ubuntu One a very easy thing.

So, if you rely on Facebook for contacting me, please don’t, send me mail, which is still enabled, and even allows all sorts of abusive content (you can write me about telescopes if you want, no ultra-paranoid filters there ).

I already wrote to the Facebook staff about the issue, but I’m not sure what they will decide.

• They just show the latest “feed” of messages from the service, not allowing users to either keep some message for a while, or remove messages they are not interested in.
• They don’t integrate well with all the services (having a ‘@friend ….’ message in your Facebook profile doesn’t look well at all, which is what is done when you ‘reply’ to a message in Twitter) or just don’t integrate at all.
• Some of them, like the Facebook widget on Maemo, just display your home page in Facebook when you click on one item, instead of sending you to the entry for that message you’re clicking on!

The only “thing” that does it correctly, from what I’ve seen so far, is yoono, a Firefox extension, which shows all the messages from all the services you configure it with, allowing you to remove messages you’re not interested in or have already read, or keeping messages for future reference. Also, it gets you to the right page at Facebook when you click on one item, and also allows you to comment directly to the messages right from yoono itself.

It’s true though that it would be great to have it not tied to Firefox, as an independent application, so /me dreams about gwibber/mauku implementing something like yoono.

How do I make PHP not run out of memory when doing thumbnails of large images? I’ve got this code:

                        $href = $path . "/" . $file;
			$tn_file = "thumbnail-" . $file;
			$orig_file = $full_path . "/" . $file;

			/* generate thumbnail if it does not exist */
			if (file_exists ($tn_file) == false) {
				$im = @imagecreatefromjpeg ($orig_file);
				if (!$im) {
				        $im = @imagecreatefrompng ($orig_file);
					if (!$im)
						continue;
					$is_png = 1;
				} else
					$is_png = 0;

				if (imagesx ($im) < imagesy ($im)) {
					$new_width = round (imagesx ($im) / (imagesy ($im) / 240));
					$new_height = 240;
				} else {
					$new_width = 240;
					$new_height = round (imagesy ($im) / (imagesx ($im) / 240));
				}

				$copy_im = imagecreatetruecolor ($new_width, $new_height);
				imagecopyresampled ($copy_im, $im, 0, 0, 0, 0,
					$new_width, $new_height, imagesx ($im), imagesy ($im));
				if (is_png == 1)
				        imagepng ($copy_im, $tn_file);
				else
				        imagejpeg ($copy_im, $tn_file);

				imagedestroy ($copy_im);
				imagedestroy ($im);
			}

			//$get_url = "/images/thumbnail-" . $file;
			$get_url = $tn_file;

It works great for most of my images (as you can see here), but it doesn't for big images (2592x1944 pixels, like this one).

I've been trying all the solutions mentioned in this page, but none seems to work for me I am assuming it's an out-of-memory problem, but could it be something else?

For the basic setup, see this tutorial. So, once you have contacts in the Evolution CouchDB Ubuntu One addressbook, syncing to Ubuntu One happens automatically:

The same contacts show up automatically in the Ubuntu One web UI:

Now, we just need to get mobile devices (N900, Android, etc) to sync contacts there also, and your contacts would be everywhere you need them!

Enjoy it!