Sick today...

...but every cloud has a silver lining! I have time for open-source. In an attempt to reduce the millions of Gnome Sudoku bug reports flowing into my inbox I've had a crack at some of the worst offenders. I think I've knocked about five on the head so things should be more stable now.

Unfortunately a lot of the bugs are due to a save file being corrupted. Once this has occurred Sudoku will always crash on startup. So we'll have to wait until a month or so until 2.18.1 is released to get some relief from bugbuddy...

Java + keyboard bindings

= Insanity.

I want to connect all input keys to a single widget. And I don't want to have to use 16 classes in the process. And I want all the Java library developers to get their come-uppance.

*sigh*

Python GtkGLExt

...is now in Debian Unstable. This works for me (I get to be lazy and eventually stop providing anything for Ubuntu) and good for you (it's available in all the architectures that Debian builds for). Big thanks Thierry Randrianiriana for maintaining this.

Boo's chess engine

I've just packaged Boo's Chess Engine (or BCE, or BACE, or ddlchess as it is known...) for Debian/Ubuntu adding another easily installed AI that works with glChess. I think I have some sort of addiction finding open source chess engines and packaging them :)

p.s. I found it quite funny posting the same article twice!

ASCII

The other day I happened to look at the ASCII table and was surprised that I had never read and understood the C0 control characters! For something I've used for so long I thought that was pretty funny :) Way, way back when I started programming with QBasic I remember looking at the table but all the non-printable stuff looked "too complicated" so I just ignored them. I suppose I should have looked again when they weren't too complicated any more.

In my previous job there were a number of ASCII/Binary protocols that used STX (02) and ETX (03) for framing transmission. This now makes a whole lot more sense...

Oh and software flow control seems quite simple now. I'd assumed there was some sort of escape sequences to do this but hey, there's the characters right there!

Secrets of the ASCII table

The other day I actually read the ASCII table. Seems odd as I've dealt with this for probably more that seven years but I've never really looked at the special characters. I remember when I started programming with QBasic/Visual Basic I first looked at the table - I ignored the non-printable characters as they looked too complicated. And for some reason I've never really looked at them again.

In my last job there were a number of ASCII protocols using STX and ETX but even then I never looked at anything outside of tab and carriage return (don't get me started on this character...). So yeah it's a bit of a surprise and now I plan to make better use (or ignore) these characters in my future code.

Shake-up in the Glade world?

I recently found a Glade replacement: Gazpacho. It's basically a Glade rewrite in Python (for ease of development and maintenance). My previous experiences with Glade 3 have been a bit variable and Glade 2 has a number of annoyances so it will be good to try Gazpacho.

Also it looks like Nokia has been building a libglade replacement. Interesting times.

Great strides in usability

Just made some really nice improvements to glChess:



a) The move descriptions now default to a human readable form. You can choose to change these to either SAN or LAN using the menus.
b) Sexy, sexy Gedit/tooltip style message areas instead of pop-ups and many status bars.

Unfortunately none of this will be in the Gnome 2.18 release. I plan on making a sf.net release today (but sneak some other goodies in first) and all this stuff can get merged into Gnome 2.18.1. Oh and I'll have to disable the "Join Game" button for this release - it's still not quite all there.

What's this ACPI thing?

Here's a simple article

Sneak peek...

My Bad

A last minute change of mine caused glChess to fail in Gnome Games. Whoops... I must get put some unit tests in for the PGN code.

What would be great in the future is to have these unit tests showing up in Damned Lies about Gnome. Python has such a great test framework and this would be so useful.

Unfortunately my time is currently traded off between new features (FICS support is coming along in the sf.net version and will aim to have it in Gnome 2.18.1), and refactoring and testing.

Click 'N Run for major Linux distributions

Linspires' Click 'N Run service will soon be available for multiple distributions. I think this is going to be really really good for Linux. Ubuntu has already mostly solved this with "Add/remove" in the Gnome menus but this is going to make life simple for the "average" user. Only good things can come of this.

Better Bash Autocomplete

Found a positing on how to stop bash autocompleting all the hidden files. This had been bugging me for a while...

Simply edit ~/.inputrc and add:
set match-hidden-files Off

Hidden files are only matched if you explicitly type in the period.

Why is Gmail search so crap?

Why is Gmail search so crap? I can never find anything with it... For example today I was looking for my sisters phone number which is in an email conversation that is fairly unambiguous. So I search for "sarah phone", "sarah number", "sarah phone number" etc. These all come up with a few or no results but not the conversation that actually has the number. Finally I found it with "sarah's phone number".

I really expect Google to be a lot smarter with search - an apostrophe shouldn't stop it from matching a word! And ideally the search would be fuzzy so I could at least look through a list of conversations to find this one (thus training their search algorithm). I would even expect GMail to know/learn that "phone" and "number" should match conversations with long numbers in them. Perhaps the GMail team needs some of the core search guys to really spice things up.

#97

glChess has broken the top 100 in sourceforge.net! Looks like it may be another glChess new years?

There's been a lot of polishing progress in the last month. There seems to be enough people using it and generating a constant amount of feedback. Should be a lot more when Gnome 2.18 is released in March.

Writing software for maximum system compatibility

For historical sake, here is a link to a program that compiles/runs in five languages. I'm sure it could be modified to also include whitespace.

The end of KDE (for me)

For the last two weeks I have been stuck using KDE at work due to a lack of Internet access. This was quite good as it gave me a chance to evaluate it as I haven't properly used it for many years. I'm using Kubuntu Edgy.

What I like about KDE:

• Tiered menus - The KDE games menu subcategorises so that there are about 10 games in the base menu after installing the Gnome games. In Gnome the menu is huge.
• KSysguard is great - you are able to monitor all sorts of system signals (CPU, memory, sockets...).
• Kontact. Clean and simple it was immediately obvious what it did as soon as you opened it.
  

What I don't:

• KDE has far too much information. Right click on anything and you get hundreds of options. Each menu entry is a short sentence - it's like reading a page of text for every menu.
  
• Annoying use of on-top splashscreens.
  
• Excessive, excessive use of 'K'. Either name things imaginatively or descriptively. It's very hard to scan through a menu with everything Kthis and Kthat.
• KHTML. Not practical for actual WWW use.
• QT frames - the old fashioned surround everything with lines. Visual clutter that looks terrible against GTK+ frames (bold headings, no lines).
• Apply buttons. Just unnecessary.
• Katapult. No idea what this does. It just opened a splashscreen, no obvious information on what it is.
• The animation effects seem inconsistent.
  

General problems in both KDE and Gnome:

• Apps shouldn't automatically quit if they can't be immediately useful, e.g. xsane. I think it creates a bad experience if you can't see inside programs. In this case it should state there are no scanners and just disable the scan button. What if you wanted to connect a scanner while the program was open?
• Add the example content directory as a shortcut on the file open dialogs. Often when playing with a new app you just want to open something. There is a lot more content that could be added - anything that can be opened should have a default file.
  

And the final straw for me is printing a test page to the local printer. I incorrectly entered the URL as ipp://host which caused the printer to print out the ipp traffic as text. That's fine, it doesn't speak IPP. However since the printer was not sending back any responses it continued to send out more printing requests. Thirty pages or so I finally stopped it by doing killall ipp. This may be KDE specific or it may be CUPS specific but it's unacceptable. Test pages should only be retried by the user and the GUI should indicate if it's printing multiple pages. This seemed to bypass the CUPS queue so nothing was indicating where these print jobs were coming from. Printing has a long way to go before it works-out-of-the-box.

In summary; I didn't like KDE a few years ago and I don't now. It's got the details but still the basics are annoying. It's too cluttered for new users to find easy and for power users like me it's full of cruft that gets in my way.

Now installing Gnome...

Google Analytics

I just set up Google Analytics for my web pages the other day. Easy to set up and nice, interesting results.

For glchess.sourceforge.net:

Looks like I have a Norwegian fan club!

This blog looks like a sub-set of the above.

An interesting thing I noted is a reasonable amount of traffic is coming from GetDeb - a click-n-run style repository for Ubuntu I had not heard of.

What is wrong with computer scientists?

Today I spent pretty much all my time trying to get fricking Java to convert a 1D buffer of 8 bit colors (i.e. RGBRGBRGBRGBRGBRGBRGB...) into a viewable image. But no, Java has to abstract everything to death into Raster, DataBuffer, BufferedImage, ColorSpace, ColorModel, ComponentColorModel ... ad nauseum. There's been more or less no progress since I started. I still have a buffer in a perfectly valid format and it still isn't rendered.

Why can't it be as simple as this?

BufferedImage image = new BufferedImage(TYPE_BYTE, FORMAT_RGB, width, height, data);


Surely for a tool to be useful simple things should be simple and complex things should be possible. *sigh*

Summary of current open-source chess programs

XBoard is the old classic. Probably quite functional for experienced users but not very friendly and needs to be retired.

eboard is the XBoard replacement (?). I would have assumed it's dead but checking the site it seems a GTK+ 2.0 version is about to be released. It probably has the functionality that I've been aiming for with glChess but not the simplicity.

Scid is a database and analytics tool for hard-core chess players. It hasn't been updated since 2004.

Chessmonk is a modern replacement for Scid. It's still in early development.

Gnome Chess is long dead.

glChess is the new Gnome chess...

Pychess is the other modern chess interface for Gnome. We talked about merging but their goals are more power-user where mine are more simple. They've just release 0.6.0 - will look at "borrowing" any useful code!

Knights is the KDE interface. Looks fine and plan to check compatibility with it.

Slibo is a 3D chess application for KDE. It seems to be dead but the board looks a lot nicer than the glChess one. So should look into salvaging materials, reflections, shadows etc.

Brutal Chess is in the early stages of development. I think they're aiming for mostly graphics.

Dream Chess has very nice full-screen 3D graphics. It's early in development.

So when you list them all the market looks quite busy. I guess I predict that the old hands will fade away and we will be left with chessmonk+pychess, glChess and Knights as the dominant programs. But you never know...

UPDATE: 17 Dec - Added Chessmonk which is the program pychess is working with