1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Supporting Multi-Touch In Non-Multi-Touch Linux Apps

Ubuntu

Published on 19 August 2010 10:02 AM EDT
Written by Mohamed Ikbel Boulabiar in Ubuntu
Comment On This Article

After the release of the Ubuntu Multi-Touch stack called UTouch and the X.Org Gesture Extension, the rising question would be the support of everyday applications, as only a few applications in Ubuntu 10.10 will properly support UTouch. Standard applications which are non-multi-touch-aware only recognize events which come from the keyboard and the mouse like key-presses and mouse clicks.

Last year when I was in the LII-ENAC Lab in Toulouse, we were discussing on how to deal with advanced input devices handling and how to develop this inside operating systems like Linux. One of the ideas is to consider the input as bricks which can be chained, modifying and enriching the information in each phase. And in the end of the chain, the input should take place in receivers, and one of the methods is to inject them in a way the application can recognize easily.

And here comes Ginn, which is a daemon filling the gap in-between by listening to gestures from the UTouch stack and injecting common key-press events inside applications according to the predefined rules.

As a beginning, two video demos have been prepared to validate the concept and show what it is possible to do with the multi-touch stack.


The first video (above) shows the control of the GNOME PDF reader called Evince, and the second one (below) shows the famous vector drawing tool Inkscape.


Ginn doesn't use DBus facilities but this support can be added later to get direct control on applications.

This background daemon fills the gap of multi-touch support and is a nice complement to the direct use of UTouch API. It can be also useful for closed-source applications running on Linux as they will be forced to accept multi-touch events even completely without detecting them.

Mohamed Ikbel Boulabiar is one of the developers behind the Ginn daemon and prepared this article for Phoronix.

Latest Articles & Reviews
  1. Samsung 850 EVO SSD Linux Benchmarks
  2. Kubuntu 15.04 Is Turning Out Quite Nice, Good Way To Try Out The Latest KDE
  3. 5-Way Linux Distribution Comparison On The Core i3 NUC
  4. OCZ ARC 100 Linux SSD Benchmarks
  5. Lenovo ThinkPad X1 Carbon Works Great As A Linux Ultrabook
  6. Transcend SSD370 256GB
Latest Linux News
  1. HTC & Valve Partnered Up For The Steam VR Headset
  2. 8cc: A Small C11 Compiler
  3. Not Everyone Likes The Possible "VULKAN" Name For Next-Gen OpenGL
  4. The Binary Blobs Making Up Coreboot
  5. Linux 4.0 & LLVM vs. GCC Yielded Much Interest This Month
  6. XBMC/Kodi 15.0 Alpha 1 Released
  7. Xfce 4.12 Released After Nearly Three Years Of Work
  8. The Khronos Group Filed A Trademark On "Vulkan" API
  9. Mozilla Thunderbird Adoption Climbs, Thunderbird 38 In May
  10. The Most Popular Linux Benchmark Results On OpenBenchmarking.org
Most Viewed News This Week
  1. Linux 4.0-RC1 Tagged, Linux 4.0 Will Bring Many Notable Improvements
  2. Screenshots Of The GNOME 3.16 Changes
  3. More Proof That Allwinner Is Violating The GPL
  4. The Tremendous Features Of Fedora 22
  5. Krita 2.9 Released, Their Biggest Release Ever
  6. Linux 4.0 Doesn't Have The Weirdest Codename
  7. A Single UEFI Executable With The Linux Kernel, Initrd & Command Line
  8. Canonical Comes Up With Its Own FUSE Filesystem For Linux Containers
%%CLICK_URL_UNESC%%