Calligra/Calligra Mobile

See also: Kexi Mobile. and: FreOffice Blog

Calligra Mobile is a mobile user interaction of Calligra Suite. The calligra mobile code base is under tools directory in Calligra trunk. The source code for Harmattan office (a different UI based on Calligra) can be downloaded here.


One of the key goal in Calligra Mobile development is to make it end user ready (as mobile clients in Maemo, MeeGo, etc, environments). This basically means that it would require atleast the following key improvements:

  • Clean up the code architecturally and make it clean and modular (Already being actively developed by Mani and Jaroslaw and more)
  • Ensure there are no crashes in the UI and software is stable
  • Make the mobile office stable and address some of the usability issues identified by the analysis made so far
  • Identify and Document the APIs required to use Calligra backend and agree these to be become API Calligra suite will provide
  • Agree if we should merge the IRC channel(currently #FreOffice @ Freenode) or just keep the mobile stream and desktop discussions parallel
  • Clean up the UI plug-in architecture and make the current plug-ins stable and utilize only stable plugins for the next release
  • Update the software based on end user feedback and improve usability issues which are stopping from using the FreOffice for real world use cases
  • For Maemo 5 move the application from development edition to end user ready version and get real users to use
  • For MeeGo environment Move the current Qt version of FreOffice on Maemo 5 with minimal updates and repackaging into MeeGo platform 1.2 (Under development)
  • Later plan to enhance the UI by developing QML based UI for MeeGo Platform and contribute as a reference implementation for Office viewer there
  • In future: MeeGo has multiple Ux environments and we would like to enhance the Mobile Ux to scalable to other ux if time permits.

Building Calligra Mobile


Core Software: Manikandaprasad Chandrasekar(Mani), Lassi Nieminen(Lassi), Boudewijn Rempt, marijn kruisselbrink(Marijn), Jaroslaw Staniek and Suresh Chande,

UI Usability enhancement and Graphics: Mitul Bhat, Yugu

<Add your name if you have contributed to the project>

Student projects

QMLified Mobile UI for MeeGo Platform- Shantanu Tushar Jha

Plugin development for Calligra Mobile - VTU Students

  • Spell checker
  • Search plugin to online search
  • wiki lookup for Keywords
  • data type identifier based on text parsing (email id, phone numbers, location, date, name(contact lookup)) and integration to mobile interfaces to access and invoke corresponding applications

Usability Enhancement of Calligra Mobile for N900 - SJCE Students

Usability Studies of FreOffice - Symbiosis Institute Of Design and IIIT-Bangalore

Implement Dictionary/Thesaurus functionality for Calligra Mobile - Kaushal, Vikram

More details are here

  • Schedule : 3 Months Week 7 - Week 20
  • 10 Weeks implementation / 3 Weeks for Documentation

Most office suites have some sort of thesaurus built in them, Calligra Mobile needs it too.

  • Identify the Open Source component that can be used for this
  • Define the Architecture how this can be implemented
  • Develop the UI and integrated with the Dicitionary backend
  • Test and Debug the software
  • General Tasks: Calligra Mobile Fine tuning and Bug Fixing

Integrations Calligra MObile to Mobile device enablers such as messaging infrastructure

  • Enable from the document viewer to share the document over email and different messaging infrastructure
  • Integrate SMS interface to update Spreadsheet data and access data from a specific spreadsheet in the device.

Enhance Editor capabilities Calligra MObile

  • Currently the Editor capabilities for the Calligra Mobile are not very rich and it requires feature implementation for Stage / Presentation application and improvements are necessary for the Words and Tables Application.
  • The student working on this will take part in designing the user interface and implementation

Accelerometer based Document navigation for Calligra MObile

  • Utilise the mobile device accelerometer to provide advanced user interface to navigate the document such as Spreadsheet and Document (Presentation already exist)
  • Define the UI and Implement
  • Mature the UI and Testing for Usability

Document scanner plugin for Calligra MObile- scan real world text documents and convert it to ODT document - Gururaj, Mohammed Tanveer, Sandeep

More details are here

  • Schedule : 3 Months Week 7 - Week 20
  • 10 Weeks implementation / 3 Weeks for Documentation
  • Investigate OCR based scanning backend( Tesseract / online service based)
  • Define the UI for Capturing the document and Converting to different Language
  • Hook up the UI with Calligra backend to create ODT Documents.
  • General Tasks: Calligra Mobile Fine tuning and Bug Fixing

More to be added here

Student contributors

Rahul Das, Afaque Hussain , Ajay Pratap, Arjun , Gopalakrishna Bhat, Hari, Kaushik, Kaushal, Kumar, Pramod S G, Pratik Vyas, Sugnan Prabhu , Sunpreet, Shantanu Tushar

<Please add your name if you have contributed to FreOffice / Calligra Mobile here>

This page was last edited on 16 April 2012, at 21:57. Content is available under Creative Commons License SA 4.0 unless otherwise noted.