Developing Qt Applicationson MeeGo Touch with Style

Torsten Rahn <torsten.rahn@basyskom.com>

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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On the desktop ...● Windows, Mac, Linux

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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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Moving towards mobileOther 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

MeeGo Touch● Platform API

● QGraphicsView based UI framework

● Provides QGraphicsView based widgets

● Finger usable

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QStyle on MeeGo Touch ...

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… and more examples

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●...

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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Reinvent yourself ... ● Focus shift towards mobile use case

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A new world of hardware ... ● OpenGL ES

● GPS, Location API

● Multitouch

● Camera

● Other sensors

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Limitations of QWidget ...● Layouts

● Orientation Change

● Animations

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Qt Quick: a fresh approach● Intuitive User Interfaces

● Design-Oriented

● Rapid Prototyping and Production

● Easy Deployment

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QML● Declarative language for User Interface elements:

● Immediately familiar to web / graphics designers

● QML Viewer

● Integration with Qt Creator

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Qt Quick examples

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But what about widgets?● Qt Quick Components

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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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