The document discusses the development of Qt applications for Meego Touch, emphasizing the transition from desktop to mobile with considerations for limited screen space and different user interactions. It highlights the use of QStyle and Qt Quick for creating intuitive user interfaces, rapid prototyping, and easy deployment, while also addressing the limitations of traditional QWidget. Key features of the Meego Touch platform, such as the QGraphicsView based UI framework and support for multitouch and various sensors, are also presented.

1. Developing Qt Applications
on MeeGo Touch with Style
Torsten Rahn <torsten.rahn@basyskom.com>

2. About me
● KDE developer since 1998
● Currently working on MeeGo Touch (QStyle) /
Qt Quick Components at basysKom
● Founded the Marble Virtual Globe project
http://www.marble-globe.org
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3. On the desktop ...
● Windows, Mac, Linux
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4. The world of Qt
● strong multi-platform history
● Create once compile everywhere …
● Qt emulates look and feel of the platform
● “Classic” Qt world: QWidget
● Appearance is delegated to QStyle
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5. Moving towards mobile
Other Requirements / paradigms than desktop:
● Limited screen estate
● Other means of interaction
● Hardware resources, battery
● Different Motivation for use
● UI Guidelines
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http://meego.com/developers

6. MeeGo Touch
● Platform API
● QGraphicsView based UI framework
● Provides QGraphicsView based widgets
● Finger usable
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7. QStyle on MeeGo Touch ...
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8. … and more examples
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●...

9. Adjustments are needed ...
● Usage of Profiles
● User interface streamlined (menus, toolbars, ...)
● More task driven rich UI
● Optimization for speed / battery usage
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10. Reinvent yourself ...
● Focus shift towards mobile use case
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11. A new world of hardware ...
● OpenGL ES
● GPS, Location API
● Multitouch
● Camera
● Other sensors
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12. Limitations of QWidget ...
● Layouts
● Orientation Change
● Animations
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13. Qt Quick: a fresh approach
● Intuitive User Interfaces
● Design-Oriented
● Rapid Prototyping and Production
● Easy Deployment
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14. QML
● Declarative language for User Interface elements:
● Immediately familiar to web / graphics designers
● QML Viewer
● Integration with Qt Creator
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15. Qt Quick examples
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16. But what about widgets?
● Qt Quick Components
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17. Thanks !
● http://www.meego.com/developers
● http://apidocs.meego.com/1.1/platform/html/libmeegotouch/plainqt.html
● http://www.marble-globe.org
● http://www.basyskom.com
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