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Maemo 6 UI Framework
The Maemo 6 UI framework is built using Qt4.6 for full OpenGL acceleration. It uses a scene graph approach with widgets and layouts as part of the scene. The framework provides the Maemo 6 look and feel with multi-touch gestures, portrait and landscape modes, and animations. A technical preview is available now and feedback should be sent to the listed contact.
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Maemo 6 UI Framework
- 1. Maemo 6 UIFramework Tomas Junnonen Application Framework Architect, Nokia 1
- 2. Status Quo ofthe Maemo 5 UI framework • UI Framework implemented using Gtk+ • Window composition using OpenGL • Single-touch gestures • Gtk+ applications use the CPU for rendering • Applications can however use OpenGL directly 2
- 3. Drivers for renewalin Maemo 6 • Iconic user experience, animations & transitions • Portrait and landscape throughout the UI • Hardware trends • OpenGL ES acceleration • Multi-touch, capacitive displays • Improved finger usability 3
- 4. Maemo 6 UIFramework • Built using Qt4.6 • Full UI acceleration using OpenGL • Designed from the ground up to be finger usable • Multi-touch gestures • Portrait and landscape modes • Core components are cross platform for a better developer experience 4
- 5. Built using thelatest Qt capabilities • Qt Animation Framework • State Machine Framework • Multi-touch & Gestures • Graphics Effects • Qt3D 5
- 6. A scene graphapproach to UI • Built using the Qt Graphics View Framework • Widgets, layouts, all part of one big scene • Windows act as views into the scenes • Supports zooming, rotation, animations • Simple physics for select components 6
- 7. Qt provides • OpenGLES 2.0 accelerated painting system • Graphics View • A base for developing widgets for the scene • Collision detection, events, layouts, drag and drop, input handling, etc. • Framework for creating animations • The kitchen sink 7
- 8. Maemo 6 UIframework provides • Maemo 6 UI look and feel • A set of widgets for the scene • Additional layouts, including implicit animations • Application level scene management, transitions • Maemo 6 specific gestures • Application life cycle management • An advanced theming system based on SVG and CSS 8
- 9. Core UI frameworkcomponents also include • The usual suspects: • Device homescreen • Control panel • Help system • A compositing window manager • Resource management and sharing daemon 9
- 10. Maemo 6 UIframework - Technical Preview • Available now: http://qt.gitorious.org/maemo-6-ui-framework • Includes the application framework library and the homescreen • Dependencies include the Qt 4.6 technical preview • Feedback and questions to: tomas.junnonen@nokia.com 10