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2. The Benefits of Extensions Dniel Darabos Zsolt Bagoly ELTE Adaptive Software Labs, MultiRacio www.multiracio.com Hungary 3. The Benefits of Extensions Dniel Darabos Zsolt Bagoly ELTE Adaptive Software Labs, MultiRacio www.multiracio.com Hungary 4. The Benefits of Extensions Dniel Darabos Zsolt Bagoly ELTE Adaptive Software Labs, MultiRacio www.multiracio.com Hungary 5. Agenda

Case study

Benefits to the user

Benefits to the publisher

Benefits to the developer

Benefits to the community

Disadvantages

Examples

6. Case study: MultiRacio Ltd.

Old model: EuroOffice 2005 Integrating enhancements into the codebase

• commercial rebranded version usingSISSL

New model: EuroOffice 2007 Enhancements published as extensions

• open-source rebranded version usingLGPL

• • free and trial extensions

• • support for extensions that need more

• closed-source extensions

7. Benefits to the user

Available to all OpenOffice.org users

Only pay for what you need

Use together with other extensions

Quick download, electronic purchase

8. Benefits to the publisher

Huge installed base

• and growing!

Central extension repository

Shared marketing costs

Simple deployment, simple updating

9. Benefits to the developer

Billion times faster modify-compile-test cycle

Code not spread across the huge OOo code

Python

Clean, documented API

Almost no work to follow versions

Easier to track down bugs

Large amount of reusable code

10. Benefits to the community

Open-source rebranded version includes

• new interfaces (e.g. XAdaptiveInterface)

• added functionality

• extensive testing, bug reports, fixes

Multiracio is now interested in selling OpenOffice.org

11. Disadvantages

none

12. Disadvantages

well...

• Developers' Guide needs updating

• API documentation needs improvements

• API awkward at places

• Features missing (e.g. help)

• Extension repository in its infancy

• Python 2.3.4

13.

Flashy

examples

mixed with

technical details

14. Extensions by MultiRacio Ltd. Map Chart Adaptive Interface Dictionary Solver Thesaurus Spellchecker Hyphenator Animated Tutorials 15.

EuroOffice Map Chart

16. Examples Map chart Some value 0.0 1.6 3.2 4.8 6.4 8.0 9.6 11.2 12.8 14.4 16.0 16.0 Blue value Red value Yellow value Green value 17. Examples Map Chart 3D? 18. Map Chart

OpenOffice.org Draw object

• can be edited after creation in any crazy way

• users without EuroOffice Map Chart can view it

Daemon monitors changes in the data

• XChartDataChangeEventListener

• Daemon is recreated in loaded document (GlobalEventBroadcaster, XEventListener)

Performance

• pyuno bridge is costly with 100000 point polygons

• use C++ bridge instead

19. Examples

Language tools with Morphologic technology

• Dictionary

• Spellchecker

• Thesaurus

• Hyphenator

• Translator

20. Examples

Language tools with Morphologic technology

• Dictionary

• Spellchecker

• Thesaurus

• Hyphenator

• Translator

appears as toolbar translates word under cursor replace word with two clicks 24 dictionaries for 8 languages easily add more as CSV files stemming in English and Hungarian 21. Examples

Language tools with Morphologic technology

• Dictionary

• Spellchecker

• Thesaurus

• Hyphenator

• Translator

(Hungarian only) works charms with inflection 22. Examples

Language tools with Morphologic technology

• Dictionary

• Spellchecker

• Thesaurus

• Hyphenator

• Translator

Experimental 23.

EuroOffice Adaptive Interface

24. Adaptive Interface

published serviceAdaptiveInterfaceProvider { [ optional ] interface com :: sun :: star :: awt :: XAdaptiveMenuProvider ; };

25. Adaptive Interface

Algorithms devised in the Etvs Lrnd University Adaptive Software Labs

Project financed by the EU, included in the "Europe Plan"

Ongoing work

26.

EuroOffice Solver

27. Solver

Simplex and Hungarian algorithm

• implemented in C

novel user interface

daemons (XChartDataChangeEventListener)

28. Animated Tutorials

EuroOffice Animated Tutorials

• narrated flash videos for a large number of tasks

• basic and advanced

• in 7 languages

• great for education or inspiration

29.

General notes

30. General notes

Adding help

• create/modify eurooffice.tree and eurooffice.jar (if we have write access to the help directory)

• add help id to *.db Berkeley DB files _bsddb.pyd missing from budled Python...

31. General notes

Installation

• instead of a licence ask the user to restart

Uninstallation

• watching for writeRegistryInfo getting called after getComponentFactory

• clean up, remove menu items...

32. General notes

Using native code

• ctypes or Python extension modules

• Python is a convenientglue language

• one .oxt can contain binaries for all platforms

33. The end

That's it!

You can reach me at

[email_address]