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  Gesture Recognition for KDE
Accessibility Posted by Navindra Umanee on Wednesday 23/May/2001, @19:54
from the but-does-it-read-your-mind dept.
Mike Pilone has stepped up to the challenge of implementing gesture recognition for KDE. "KGesture uses libstroke to recognize definable gestures, then run an associated command. Using KDE's DCOP interface, KGesture can interact with applications already running, or launch new applications." You might be forgiven if, like me, you first thought this was a joke. KGesture works as advertised, and is almost as fun as the now discontinued KVoiceControl, but it does need a little more fuzzy logic before it becomes practical enough. I did manage to get it to work for simpler gestures -- I can draw an L-shape on my desktop and a dot.kde.org window will pop up. However, for more complex gestures such as a circle, it takes a little practice and patience to get right. With time, your help and feedback, KGesture is bound to improve. Download it here or view the screenshots (1, 2, 3, 4, 5, 6, 7, 8, 9).


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Over 40 comments listed. Printing out index only.
Re: Gesture Recognition for KDE
by reihal on Thursday 24/May/2001, @00:37
Aaaaah, kool!
Maybe it works even better with a pen-pad, like those from Wacom.
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Re: Gesture Recognition for KDE
by xasto on Thursday 24/May/2001, @02:05
i love it :) a feature I haven't seen on too many other systems (except black&white).. looks promasing!
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Re: Gesture Recognition for KDE
by Antialias on Thursday 24/May/2001, @03:54
I remember I tried a similar app a three or four years ago on MS Windows. It is useless.
First off all it is useless for launching applications: why to draw when you can click on an icon or even better press a key on your keyboard. Second, I don't have any space on my desktop while working: this means that I have to close some running applications and draw something on my desktop to launch a new app.
No thanks, Ctrl + K = Konqueror is running :)
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Re: Gesture Recognition for KDE
by emmanuel on Thursday 24/May/2001, @05:41
EXCELLENT!

will i be able to live without it now? :o))))))))))

thanks for this :o)))))

emmanuel :o)
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Re: Gesture Recognition for KDE
by MaW on Thursday 24/May/2001, @06:54
Great! I use WayV to launch applications, which doesn't depend on KDE, but it can't talk to apps that are already running except in limited ways, so KGesture is a great improvement on that.

I hope that if/when Gnome gets gesture recognition it's something that can run simultaneously with this and not cause conflicts... although somehow I doubt that.
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Re: Gesture Recognition for KDE
by Julio Alvarez on Thursday 24/May/2001, @09:26
Why not implement REAL gesture, capturing data from a Webcam ?
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Re: Gesture Recognition for KDE
by Risto Treksler on Thursday 24/May/2001, @10:47
> . . . Using KDE's DCOP interface . . .

Does anyone know where I can find more information on DCOP calls.
Ideally I would like to find a full list of possible DCOP calls for every KDE2 app.

eg.

kwin
-KWinInterface
..setCurrentDesktop
..killWindow
..??

kdesktop
-??
..??

etc.
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An interesting mail on the topic.
by KDE User on Thursday 24/May/2001, @11:46
This is a mail from the author as reported by LinuxToday. See the attachment for some interesting info.
Click to download attachment kgesture.txt
1KB (1704 bytes)
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Re: Gesture Recognition for KDE
by Arnd Bergmann on Thursday 24/May/2001, @11:49
Now that gesture interfaces finally seem to find their way into mainstream GUIs, I guess it's time to reconsider the related other interface method that [warning: bad pun] pops up every now and then in User Interface classes: Pie Menus [http://catalog.com/hopkins/piemenus/index.html]

There is already an implementation for GTK [http://atrey.karlin.mff.cuni.cz/~0rfelyus/GtkPieMenu/], and I wonder what it would take to integrate something like it in Qt/KDE as well, maybe as a widget theme.

The biggest problem used to be the size that pie menus took up, but that could now probably avoided by making them transparent.
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Re: Gesture Recognition for KDE
by Martin on Thursday 24/May/2001, @12:23
It is a cool idea !
It will better to have it in kcontrol !

JP
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Windows Has SenSiva
by Asif Ali Rizwaan on Thursday 24/May/2001, @13:07
This is a great development, when i saw Sensiva, application I was impressed with it and wished that KDE should have had it. I expected that KDE might take three to five years to get there to have this technology; but to my amazement and surprise; KDE's Development is real great. I wonder What will KDE and its apps will do till KDE 3.0 ;)

Thanks a lot for your hard and nice work!
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Re: Gesture Recognition for KDE
by ryan ware on Thursday 24/May/2001, @14:20
Cool, you did something microsoft would try. I guess we have arrive.
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Graphic bug in KDE?
by PE on Thursday 24/May/2001, @14:26
Look at the first screenshot, at the border around the selected icon (at left). Not that nice. I have the same problem in my KDE. The border around some selected items is ugly sometimes.
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Re: Gesture Recognition for KDE
by Craig on Thursday 24/May/2001, @17:20
Congradulations to the KDE developers. Even after i heavly pushed the kde vs. gnome poll on gnotices yesterday kde still has a 10 to 1 lead. Its my option that konqueror has been the killer app that pulled kde in the lead. ALso anti-aliased fonts and the kompany's applications hav'nt hurt either. Ok before all you flower power types get your bell bottoms ruffled. The community is united like a bunch of baseball fans are but i just enjoy rutting for the home team. So way to go guys your doing great. I think when koffice gets in better shape we'll really be looking good.

Craig
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Re: Gesture Recognition for KDE
by Marius Andreiana on Saturday 26/May/2001, @00:12
So how does it work ? Can I move my arms and interact with computer? I need more equipment for that.
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Like Emacs "stroke-mode"
by AC on Saturday 26/May/2001, @08:47
very useful actually.

Why is voice control discontinued?
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So what happened to VOICE CONTROL!???
by AC on Saturday 26/May/2001, @08:52
It's likely more important
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Re: Gesture Recognition for KDE
by romulus23 on Saturday 02/Jun/2001, @07:07
Great Idea! Will it be possible to navigate in Konqueror (like "go back in history" or something) like in opera for windows? Its a really cool feature in opera and I miss it a lot in Konqueror
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