An overview of the mobile UI technologies based on Eclipse open source projects. Presented at EclipseCon 2010

1. Exploring Mobile UI
Technologies of Eclipse
Gorkem Ercan
1 © 2010 Nokia by Gorkem Ercan

2. Current Landscape
• eSWT is available on several mobile platforms
• Symbian
• Windows Mobile 5/6
• WinCE 5/6
• The most widely distributed Eclipse technology is eSWT port for Symbian
• Available on all Symbian S60 3rd Ed. FP2 and later devices
• ~40 different devices from Nokia(32), SonyEricsson (2), Samsung (4) and counting
• New Platform - Linux (based on Qt)
• eRCP SDK available from Pulsar
• eSWT templates and new wizards as part of Pulsar (MTJ)
2 © 2010 Nokia by Gorkem Ercan

3. Symbian (S60)
• Kinetic scrolling
• Scrollables (List, Table, Tree ….)
• New widget
• ScrolledComposite, supports kinetic scrolling
• Link
• Bug fixes
3 © 2010 Nokia by Gorkem Ercan

4. Windows Mobile
• Background image support
– Composites and widgets can display images, providing for more “artistic”
user experiences
• Support for Windows Mobile 6.5
• Bug fixes
4 © 2010 Nokia by Gorkem Ercan

5. What is Next
• eSWT port using Qt to be supported for eRCP 1.4
• Linux, Symbian
• New features for better touch and eye candy
• CSS styling
• Animations
• Multi-touch
• OpenVG bindings for Java
5 © 2010 Nokia by Gorkem Ercan

6. eSWT port on Qt
• Already available for download for Linux
• Will eventually replace eSWT for Symbian
• Can also support Maemo/Meego
• Uses the same architecture as SWT implementation
• Can be extended to support full SWT
• Qt is an exciting API
• CSS Styling
• Animations & Gestures
• Multi-touch ( SWT bug #279884 )
6 © 2010 Nokia by Gorkem Ercan

7. OpenVG
• 2D vector graphics API aimed at handheld devices
• Enables hardware acceleration
• OpenGL like syntax
• OpenVG bindings for Java
• Small footprint
• We need OpenGL ES 2.0 bindings
OpenVG4J Sample Code
float[] matrix = new float[] {
0.2000f, 0.0000f, 0.0000f,
0.0000f, -0.20000f, 0.0000f,
0.0000f, 0.0000f, 1.0000f
};
float black[]= new float[] {0,0,0,1};
IOpenVGGraphics g = new OpenVGGraphics();
g.open( windowhandle );
g.vgSetfv( OpenVGParamType.VG_CLEAR_COLOR, black);
g.vgClear(0, 0, width, height);
g.vgSetPaint(fillpaint, OpenVGPaintMode.VG_FILL_PATH);
7 © 2010 Nokia by Gorkem Ercan

8. Symbian MIDP UI
• UI components to use Qt on Symbian^4 version
• MIDP’s LCDUI is implemented using eSWT for Symbian^4
• Licensed under EPL
• Cross platform
• Unfortunately requires some extensions to eSWT port
• Text editing, graphics
8 © 2010 Nokia by Gorkem Ercan

9. Emulated eSWT
• JavaME MIDP is the most ubiquitous computing environment
• Billions of mobile phones
• eSWT developers can not reach as many devices as MIDP
• eSWT support is currently limited to Symbian and Windows Mobile
• Emulated eSWT is built on top of MIDP LCDUI
• Available on every JavaME phone
• Shipped with application
• Open source
9 © 2010 Nokia by Gorkem Ercan

10. Questions?
Thank You
Join us at
http://www.eclipse.org/ercp
10 © 2010 Nokia by Gorkem Ercan