Smalltalk evening at the OOP2008

Some pictures from the OOP 2008 Smalltalk evening, click to enlarge:


Suzanne Fortman, Marketing Manager Cincom

The evening begins with 3 parallel tracks


Arden Thomas, Cincom talking about Smalltalk

- many things were invented in Smalltalk
- Smalltalk continues pioneering
- Closures, Reflection, Image Based Development
- "Try doing that while it's running"
- changing the definition of an object while it is running
- Smalltalk is enjoyable and addictive


An OpenGL demo created in Smalltalk. "Change it while it is running!"

- he refactored the running OpenGL graphic animation


Lukas Renggli talking about Seaside

- Problems with page oriented frameworks: logic cluttered on many pages
- Seaside is a web framework
- does the web job, no persistence solution by default like in RoR
- always valid XHTML
- Web components and applicaton logic written in Smalltalk, styling in CSS
- web components with own state/model management
- Backtracking and Continuations
- Seaside is secure by default (encoding, no parameters, ...)


A few web applications using Seaside


Seaside is also able to handle high traffic


Improvements in the new Seaside version

The new Seaside version has improvements in memory footprint and rendering speed. Read the official Seaside website for more.

Dynamic Language Shootout at OOP2008

At OOP 2008 here in Munich there was a dynamic language shootout organized by the german magazine "Java spektrum".

The winner is Thorsten Seitz with a Smalltalk application based on VisualWorks and Seaside. Congratulations, even if it is not a suprise that Smalltalk is by far the best dynamic language! The second winner is JRuby, the third Lua.

You can download and try the solutions here.

The winning Smalltalk application not only was the best solution, it also had a nice web user interface based on Seaside:

Seaside in Munich

Will work in Munich for the rest of the week, so I hope to find the time to visit the Smalltalk evening at the OOP. See you there.

CSS Dock Menu in Seaside

Found some time this evening to wrap the CSS Dock menu demo in Seaside. It's really easy to wrap existing JavaScript/CSS components into Smalltalk classes. Here is a small tip:

• implement a subclass of WAFileLibrary (like MyComponentFileLibrary)
  
• go to http://localhost:port/seaside/config and select "Configure" on the files entry
  
• select "Configure" on your new MyComponentFileLibrary class and upload files
  

As you will notice Seaside automatically converts the images, scripts or other resources into methods on your WAFileLibrary subclass.
You can then access the resource in your code using the "MyComponentFileLibrary / resourceMethod".

If you want to add the script to the html output overwrite the #updateRoot: message in your WAComponent subclass.

You can grab the code for the dock menu demo directly from here or browse the SeasideExamples project. It's actually in Squeak but the two classes could easily be ported to other Seaside platforms like VisualWorks. I also uploaded a demo to integrate the virtual earth control (IE only) into a seaside application.

The SeasideExamples project was initiated by Phillipe and is open for read/write, feel free to upload your examples.

Interview on the Seaside

Avi was interviewed for FLOSS weekly. Listen and download Seaside to change your web application development experience.

Interview on the Seaside

Avi was interviewed for FLOSS weekly. Listen and download Seaside to change your web application development experience.

Cool but stupid things ...

Rick DeNatale talks about cool, but stupid, things he hass done in Smalltalk. His "about-me" also includes some interesting bits of Smalltalk history at IBM.

J2EE webapps ...

J2EE is still painful - even with tools like WTP, new graphical JSP/JSF editors, wizards to create various beans and projects for OR mapping like Dali. Most of the time waiting for the application servers like Geronimo, OC4J or JBoss to restart or looking which Maven goal/configuration could help you building your application.

Glad that I'm not alone with this experience. But there is help. I think Mr. Lorenzen should have a look at Seaside.

No need to restart the webserver if you build web applications in Smalltalk, no overcomplicated XML configurable build tools and the freedom to care about solving the problem - not fixing buggy tools or browsing API descriptions.

Innovative User Interfaces

Would be nice to have something like the BumpTo grouping on my desk.

There is also an interesting use of a TabletPC to play with physics.

Dynamic code generation for images using Rhino and JavaScript

Chris Double describes an interesting way for dynamic code generation based on (Smalltalk like) images.

In his example he implemented an image class in Javascript and two simple assemblers (one for x86, one for ARM). He uses the Rhino JavaScript engine (provided in js.jar) to run the scripts and write the image to disk. He then uses a simple C program to call a (now native) function in the image.

Actually his generation step hard codes the image generation depending on the specific assembler. But it should be easy to create a more general bytecode like assembler for image generation which compiles to the selected architecture.

Really interesting to use JavaScript/Rhino for that...

If you want to play with his files you have to manually download them since the link to the TAR does not work:

js.jar
x86assembler.js
generate.js
image.js
armassembler.js
run.c

Just call Rhino using: java -jar js.jar generate.js to create the image.

Smalltalk in Nepal

The Open Learning Exchange Nepal has released a demo Squeak Smalltalk image. It's fascination who uses Squeak these days, so I'm glad the Smalltalk community continues to grow.

Here are some screenshots, click on the images to enlarge:

Squeak BOF at OOPLSA

There are first tapes from the Squeak BOF at OOPSLA:

Squeak-BOF-OOPSLA-2007-1-3
Squeak-BOF-OOPSLA-2007-2-3

ANSI Smalltalk

There is a call for getting involved into the ANSI Smalltalk process by Bruce Badger.

Looks like there is also a new ANSI Smalltalk mailinglist.

New Seaside tutorial

The Software Architecture Group at the Hasso-Plattner-Institut (University of Potsdam, Germany) announced a new Seaside tutorial:

http://www.swa.hpi.uni-potsdam.de/seaside/tutorial

OLPC in german news

The OLPC project is in the german news.

EduSim3D, Greenbush and Croquet videos

Here is a new a video about a teacher adding a 3D virtual environment to her SMARTBoard.

The software is called Edusim3D and is based on Croquet which is done in Squeak Smalltalk.

Some more videos can be found on the Greenbush website:

• Your interactive whiteboard may never be the same again
  
• Bring in Video, Images, and Text onto your Whiteboard
  
• Using Croquet on a Smartboard - Croquet for kids !
  
• Ultra Mobile Devices & Internet in the "Air"
  
• Greenbush Labs: Exploring Tomorrows Educational Tech Today !
  

Seaside Builder

Hernán Morales points to a preview on the development of an interface builder for Seaside

The ideas of this package are based on WindowBuilder Pro. Right now they have support for most common web controls (TextField, Panel, RadioButton, TextArea, Label, Button, Anchor, CheckBoxGroup, RadioButtonGroup, ListBox, FieldSet).

Here is a screenshot (click on the image to enlarge):



He thinks the package would be available at the end of this year or first months of 2008. He also points to two preview videos:

http://smartware.com.ar/builder.avi
http://cs.hernanmorales.com.ar/SeasideBuilder.avi

Active Book

Tim talkes about the "Active Book", a portable tablet like computer running Smalltalk.

Sun Labs Lively Kernel

Dan Ingalls announced on the squeak-dev mailing list that Sun Labs has published Lively Kernel.

Looks like they have implemented a small computing kernel for the browser in JavaScript and ported Squeaks Morphic on top of it.

Here is a first screenshot impression (click on image to enlarge):



Based on the tradition of Smalltalk and Squeak it also includes the IDE:



Would be interesting what could be possible if this is combined with the Seaside web framework on the server side.

Squeak By Example

A new book on Squeak is available for free:

http://SqueakByExample.org

Squeak on OpenSource Phone

Another platform Squeak is running on: the FIC Neo1973 Open Source Phone

Croquet interactive

Cool stuff: Croquet on an interactive whiteboard

Next generation of Smalltalkers ...

No postings for a while. I have a pretty good reason: welcome on earth little Elisa. ;)

Smalltalk YX on Pocket PC

Luca Bruno is currently porting his Smalltalk YX to PocketPC. Here is a screenshot of Syx running on the Pocket PC emulator:

Squeak on Java

In May 2006 I reported about a Squeak image running on Java VM. Looks like Pavel decompiled it and made the source code available. Decompilation of Java is easy - just use tools like JAD.

However - if you want to play with it, here is a pointer to the source code:
http://comtalk.net/public/pub/SqueakOnJava/SqueakOnJava.zip

Squeak UI improvements

There is a discussion on the Squeak mailinglist about some simple ergonomic adjustments in the look and feel of the standard image. Gary Chambers reported about commercial work done in Squeak and an add-on package ready to release back into the community.

This package provides a nice UI for some standard (business application like) services, choosing colours, selecting a font etc.
It also provides a framework for creating "standard" morphs (checkboxes, drop-lists etc). His desktop looks like this (click one of the images to see more):

 

A few years back there we had something similar: the Zurgle Project by Jim Benson. It includes a theme for installing a Windows XP style interface:

    

I used Zurgle in my Developer Workspace project (which is now replaced by Damiens squeak-dev image, unfortunately with the standard Squeak look).



I think Squeak requires some more UI improvements and at least support for common widgets found on other platforms to build standard applications.
This would open the project to a broader audience and also allow to experiment with new GUI approaches. I was impressed by the Squeak UI work done back in the Exobox days:

    &nbps;

And I look forward for 3D user interfaces as in Croquet:

  

Sport for Squeak

Bruce posted a message that there is now also a Squeak port of "Sport" available at the sourceforge.net project site (contributed by Janko).

If you want to get the latest version for Squeak you can use the Squeaksource page:

http://www.squeaksource.com/SPort.html

Sport is a Smalltalk portability layer. Sport presents a consistent interface and implemented in a number of Smalltalk dialects. Smalltalk code written to the Sport interfaces can be run in any Smalltalk dialect without alteration.

New Seaside homepage

Philippe Marschall announced the new Seaside homepage.

The page itself runs on Seaside (2.8) and the Pier CMS and is hosted at
Seaside-Hosting.

Syx 0.1

Luca Bruno is currently implementing yet another Smalltalk version.
He just released the first version 0.1 of Smalltalk YX (Project Syx). It's running on Windows and Linux, is written in C with a simple garbage collector.

You can download the executable as well as the source from http://code.google.com/p/syx/

LiberLab and Squeak

Looks like this project is using Squeak and EToys:

Swing Bugs

Yet another stupid Java bug in the Swing UI library. But the best is that one has to wait until Java 7 to get it fixed, no backport to version 6.

In Smalltalk fixing bugs in old versions has never been a problem: anything is open and changeable. If the vendor doesn fix it you are able to modify the code yourself. This is what makes customers and developers happy ...

Swazoo for Squeak

Janko Mivšek announced the Swazoo web server 2.0 beta release for Squeak.

Swazoo (Smalltalk Web Application Zoo) is an open source, vendor agnostic, dialect neutral Smalltalk HTTP server with resource and web request resolution framework, a fruit of a first Camp Smalltalk 2000 in San Diego.

Smalltalk Game Engine

Looks like there is a new game engine for 2D games written completely in Smalltalk. See

      http://www.unstdio.com/



Jeffrey Massung (author of unstdio) talks about this project in his blog.

Swim across the Atlantic Ocean

Ever tried to find an easy way from New York to Paris?
Then try these steps from Huw Collingbourne in Google Maps.

VASmalltalk Forum photos

The Instantiations site now points to photos from the VASmalltalk Forum in Frankfurt

Seaside Marketing

After Giles Bowkett posts about Seaside's "Marketing Problem" there is a nice reaction from Kurt Schrader.

I totally agree with Kurt. Seaside rocks compared to other web technologies.
I can show it to other people, they are all fascinated but go back and use file editors and other primitive tools and frameworks. They restart the web server after each major refactoring and read many books and specs about predefined behavior and XML configurations. Sometimes I'm amongst them to make a living ;)

But I dont care. I know and use Smalltalk since many years - it still is my secret weapon. I'm always a step ahead and much more productive with it.

Here is an example: I once created an applications using Seaside and finished it within a month. It took an external team (3 people) nearly one year to recreate it using Java technology for the same functionality.

The reason is simple: in Smalltalk I can keep the focus on the problem. Especially web development with Java is bloated with very specialized frameworks these days. If you ever worked with JSP/JSF/Struts/CF/EJB/... you know what I'm talking about.

Only a few people looking for Rails and other dynamic alternatives ...

Magritte/Seaside based model editor

Pavel announced a small flash demo of the Magritte based model editor (based on the seaside web framework) with direct code generation.

See

http://comtalk.net/public/tmp/shorebase1.htm

Smalltalk Books again

Have a look at Google Books:

http://books.google.de/books?q=Smalltalk

Smalltalk-ish at Microsoft

Jon Udell talks with Alan Wirfs-Brock (who is now at Microsoft) about Smalltalk and dynamic languages. Really interesting talk ...

Scratch on BBC

There is an article (including a video) about Scratch on the BBC news site. Scratch is developed by the Lifelong Kindergarten group using Squeak Smalltalk.



The weekly squeak also reports that Scratch unleashed new projects website

Interviewing Avi on Seaside

Found another interview with Avi about Seaside and his presentation from ETECH 2007. You should also read this writeup if you are interested in the topic.

Machu Picchu in Croquet

The arts metaverse web site includes a video about "Machu Picchu in Croquet". See

http://artsmetaverse.arts.ubc.ca

Croquet is based on Squeak Smalltalk.

Arts Metaverse

Tim Wang is currently working with the Croquet Consortium (Julian Lombardi, David Smith and Mark McCahill) on a project called Arts Metaverse, which in short is to use high quality 3D models inside of Croquet to teach arts related topics (Art History, Archeology, Classical Studies etc...).

He has an e-learning related blog at: http://blog.loaz.com/timwang with some nice videos about the things they do with OpenCroquet.

Software Architecture Group Games for OLPC

Looks like Robert's Software Architecture Group developed small projects running in the Squeak/Etoys image for the One Laptop per Child initiative:

GLASS - Gemstone, Linux, Apache, Seaside and Smalltalk

From Ians blog: After LAMP/WAMP stacks for web development we now have GLASS for the Smalltalk community:

G - Gemstone/S Object Server
L - Linux
A - Apache
S - Seaside
S - Smalltalk

http://seaside.gemstone.com

FreeType Plus release for Squeak

Andrew Tween announced the FreeType Plus release for Squeak. More infos are available at the swiki.

Sudoku Solver in Seaside

Martin J. Laubach has created a Sudoku Solver in Seaside.
It shows how easy it is to create web applications with the Smalltalk web application framework.

If you want to learn more read his blog.

OmniBrowser docu

Alexandre Bergel announced a new paper on Omnibrowser:

http://www.iam.unibe.ch/~scg/Archive/Papers/Berg07cOmnibrowser.pdf

OmniBrowser is a browser framework started by Colin Putney that supports the definition of browsers based on an explicit metamodel. A first implementation is available for Squeak.

UI patents

Found a nice summary on the history of user interfaces and how Smalltalk has influenced user interfaces we know from modern operating system today.

Looks like Apple is sued by a user interface patent today. The patent was originally filed by Xerox.

What if the first cave man would have patented how to start a fire ...

2D in 3D

Channel 9 (the Microsoft MSDN tech channel) showed a video on interactive 2D controls on WPF (Windows Presentation Foundation) surfaces. There is also a new blog on this topic.

Maybe this feature of WPF will soon be highlighted as the best thing since sliced bread - but Squeak Smalltalk had some of these features since years. Maybe you remember the bunny demo where you can easily mix 2D and 3D in Smalltalk.

Have a look at Croquet - there you can easily use 2D morphic projects and mix them with interactive 3D scenes. You can select 2D objects in 3D, interactively change them and even type and select text.
And it's based on Smalltalk - therefore it is platform independent and completely open source ...

The Blue Book as PDF

The so called "blue book" (Smalltalk-80: The Language and its Implementation by Adele Goldberg and DavidRobson) is now available as PDF on the Free Books page.

Learn Seaside

There is a nice blog teaching you how to use Seaside for building web applications at: http://inchingforward.blogspot.com/

You can also watch the "How to build a blog 15 minutes with Seaside" screencast.

Plopp

Plopp, a 3D Painting Tool for kids is now ready for downloading at

http://www.planet-plopp.com

You just paint in 2D and Plopp will transform your paintings
into 3D objects. This product is created using Squeak Smalltalk.
See the announcement.

Some demo videos are available (1, 2)

Croquet 1.0 SDK is out

The Croquet 1.0 SDK is now available. Check out the new website of the croquet consortium:

http://www.croquetconsortium.org

Read more on Davids blog.

CMSBOX

CMSbox is a Squeak3.9/Seaside2.8 powered CMS which has been made available by netstyle.ch for the Swiss marketplace.

Read more at http://www.cmsbox.ch. You will find some demo movies on the right side of the page.

Smalltalk Archeology Archive

There is a new page by Aaron Reichow about old Smalltalk versions called "Smalltalk Archeology Archive". Read his posting for more.

Squeak VM for Nokia 770

Squeak now also runs on the Nokia 770.

TopLink, GLORP and O/R mapping

Oracle open-sourced TopLink last week. For those who dont know: TopLink is a object-relational mapping framework (that lets developers work cleanly at the object level rather than in relational tables). TopLink is now part of Oracles application server.

As many other notable technologies TopLink was invented and marketed in Smalltalk first and later ported to Java. The first version was written by Jon Hylands at The Object People (TOP). There is a nice summary of the history at the Oracle website.

As you may know The Object People got diverted into doing mostly Java work, and were eventually bought and split into two pieces (WebGain got the TOPLink piece, and BEA got the services piece). WebGain is now out of business, and TOPLink was sold to Oracle.

While Java people may be satisfied with TopLink any informed Smalltalker know that there is a more enhanced successor written by Alan Knight: GLORP (Generic Lightweight Object-Relational Persistence). Alan was also working at TOPLink and is now working for Cincom.

James Robertson recorded a nice podcast last week talking with Alan Knight and Michael Lucas-Smith on GLORP and about O/R mapping in general. Thanks James, for making this available!

BTW: Jon Hylands is building autonomous controllers today using Squeak Smalltalk.

DabbleDB - maps and charts

DabbleDB now supports maps and charts. Watch a screencast for a demo.

Old dude T-Shirts

As Wayne Beaton reports there are some old dudes who know smalltalk at EclipseCon conference.

It looks like Instantiations is already designing some T-shirts for "old dudes".




I already warned you that I'm infected with Smalltalk and pure OO since years. For me it is to late. ;)

So stop reading this blog - otherwise you may get the Smalltalk virus too!

New tools for Squeak

Romain announced some updates for two new tools: BrowserBooster and SpyWare for Squeak Smalltalk.

OK - lets check how usefull they are ...

Take care with math in Java

Doing some math these days with Java. As you may already guessed doing math in Java is ugly and circumstantial compared to Smalltalk.

Especially take care if you use double values. Class BigDecimal can help here - but there are pitfalls, especially when using the wrong constructor.

Pen Interaction For Authoring 3D Worlds in Croquet

The homepage of Michael Kleiber includes informations about his Master's thesis on pen Interaction For Authoring 3D Worlds. The technology used: Squeak Smalltalk and OpenCroquet

You will find the thesis, screenshots and videos.

Croquet website

Looks like the http://opencroquet.org website has a new look.

Let's throw away HTML, JSP/ASP, Flex, ... and start with the future.