Red Flag is the largest Linux distribution company in China and also the Leader of Asianux consortium. Red Flag has been using KDE/Qt as the foundation element of Red Flag Linux Desktop/Server since 1999, currently their newest Linux Desktop also fully utilizes Qt Creator as the SDK environment. During the session, Red Flag will talk about how Qt is used in the Red Flag software product line and why they choose Qt/KDE as the default desktop environment. Presentation by Wang Baisheng and Rick Xing held during Qt Developer Days 2009. http://qt.nokia.com/developer/learning/elearning

1. Qt and RedFlag

2. About RedFlag Software
• Founded in 2000, provides leading Linux products,
solutions and services.
• Largest Linux vendor in Asia.
• More than 200 employees.
• Meets ISO9001 standards.
• www.redflag-linux.com
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3. IDC: China Linux Market Share 2007

4. Global Partner
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5. Industrial customers
• Government
• Telecommunication
• Insurance
• Education
• Post
• Finance
• Transportation
• Electrical Power
• Media
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6. Product Lines

7. Introduce RedFlag Desktop
• OEM Partners
• HP, DELL, Lenovo, TCL, Hasee, Hedy etc..
• Global Markets
• South America：Brazil, Argentina, Portugal etc..
• Asia：Russia, India etc..
• European：French, Sweden etc..
• Applications:
• Open office, Acrobat Reader etc.,
• Multimedia player, include Real Player, Adobe Flash Player etc..
• Email Client, Firefox, MSN, Kget tool etc..
• More picture & Graphic tool such as Gwenview

8. Introduce RedFlag Midinux®
• 1st Intel MID Linux Partner
• Research since 2005, 4 years of MID Linux development
experience
• First MID Linux product and Best product maturity
• Wide ISV support, best MID Linux ecosystem
• Partners: Compal, BenQ, Hitachi, Lenovo, Aigo,CHR, SFR,
TIM, .etc

9. Introduce RedFlag Netbook OS
• Compatible with Intel Moblin v2 standard
• Customized UI based on Qt platform
• Multiple value-added applications written by Qt

10. Introduce RedFlag Server － Asianux
Vietsoftware
Asianux
A common Linux platform which serves the needs of Asian countries
and is jointly developed by Asia's leading Linux vendors, which
includes RedFlag in China, Miracle Linux in Japan, Haansoft in Korea,
Vietsoftware in Vietnam and WTEC in Thailand. RedFlag is the
leader of Asianux.
Asianux Consortium
An unique consortium of Asian Linux vendors whose vision is to co-
develop unified Linux platform, that is Asianux.

11. RedFlag and Qt
• RedFlag starts to use Qt from 2000
• RedFlag uses Qt across Asianux Server, RedFlag Desktop and
Embedded products.
• RedFlag chooses Qt/KDE as the default windows system from
beginning and will continue to use Qt/KDE in further
versions/products.
• RedFlag also encourages end-customers/partners/suppliers to select
Qt as the development framework
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12. Why Qt ?
• Powerful toolkit with rich widgets and libraries
• Well documented
• Plenty of tools to increase development efficiency
• Easy to study, easy to code
• Save cost and faster TTM
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13. How we use Qt
• Desktop/Server/Embedded GUI system
• Plenty of applications across all products
– System installer
– System configuration tools
– Photo Viewer
– Multimedia center
– Many more …
• Launcher for Netbook
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14. How we use Qt (cont.)
• Desktop environment
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15. How we use Qt (cont.)
• System installer
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16. How we use Qt (cont.)
• System configuration tools
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17. How we use Qt (cont.)
• Launcher for Netbook
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18. How we use Qt (cont.)
• OpenDrim (Open Distributed Resource Management)
– Open Source, based on DMTF CIM/WBEM
– Modules: service management, system info, performance watcher,
user/group management, package management, disk space
management…
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19. How we use Qt (cont.)
• Embedded usage
• Subway AFC
• Financial terminal
(automatic fare collection system)
• Lottery terminal
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20. About RedFlag Qt Team
• 90% of engineers has Qt experiences
• Member of KDE community
• Member of Linux Foundation
• Actively maintain and support Chinese Linux community
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21. RedFlag and Contribution
• RedFlag extremely welcomes and appreciate that Qt added LGPL
license model
• RedFlag also welcomes and appreciates the new Source Code
Management system (gitirious) because it’s much more convenient
and efficient when submitting changes compared to old system.
• More than 40 people in Red Flag have contributed to Qt and KDE
open source community
• RedFlag will continue to contribute to Qt and KDE community
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22. Contributions submitted by RedFlag
• KDE: Add animation when mouse over quick launch bar
• KDE: Add animation in taskbar when new application is launching
• KDE: Fix icon and text wrong display in tooltip of taskbar
• KDE: Add prompt when user add duplicated app into quick launch bar
• KDE: Fix multi-desktop switching not working problem
• KDE: Fix floppy mount bug
• Qt4: Fix cursor position issue in input method implementation
• Qt4: Fix crash problem when input method exit
• Qt4: Fix cursor update bug when input method switching
• Qt4: Add bold font support to Qt4
• Qt4: Add bold font rendering to Qt4
• Many more …

23. Thank you