Left button always clicked && I cannot draw in GIMP.
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I have three problems here.
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After I started the app and did the settings, the working area on my Android device is always very small. I looked in the code and found that it’s initialised to 128x128. I modified it to the correct resolution of my tablet and this problem is solved.
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While I can move the cursor around by touching the tablet, it behaves like I’m moving a mouse with its left button clicked. When I move the cursor over some text, they’re selected. Even if I touch carefully, it’s the same case.
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After I’ve done the settings with GIMP, I still cannot draw with the tablet. I can move the cursor around but cannot draw anything. It’s like the left button of the mouse is broken.
Environment: xorg-server 1.13.0, Linux 3.2.0-32-generic x86_64 Ubuntu, Linux Mint nadia (Ubuntu quantal).
Tablet: Acer Iconiatab A500, Android 4.0.3, Linux 2.6.39.4+
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Assuming from demonstration video XorgTablet was written & tested specifically for Samsung Galaxy Note 10.1 which has wacom-driven stylus; such device can detect stylus hovering over canvas and stylus has 1024 pressure levels (afair).
2:
When you’re using tablet without this functionality you do may not have “hovering” level of pressure. So when you touch screen even slightly it just sends “pressed” -> like mouse button with its left button clicked. Can you confirm your device support hovering? As far as I can tell it probably doesn’t.3:
If you’re referring to mouse as real mouse: when you setup Gimp to use NetworkTablet0 as input real mouse clicks stop working, I can confirm this, same happens to me (any Gimp user with real wacom tablet can confirm this as expected?).If you’re referring to mouse as tablet input firstly check APK from #1 (it fixes pressure detection for Note 10.1), if you cannot install it you must have adb on your desktop and do:
adb uninstall com.gimpusers.xorgtabletand then install this APK.
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For the 3rd problem, I was referring to the remote tablet, not the real mouse.
I think the second is due to that my tablet actally lacks the support of stylus hovering. It does not come with a stylus.
Thank you very much for this driver anyway. I will try again if I get a proper tablet in the future.
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@aenon I think there is possibility to make it work under non-stylus touch screens. Android touch screen API reports pressure level based on how large part of your finger/capacitive stylus touches screen.
I’ve tested it on nexus 7 with both finger and Puro stylus. Both results look promising.
I think there’s possibility to add some “calibration” values to settings to define “hover” threshold & max pressure cutoff, then recalculate it and send to xorg driver calibrated value…
Puro stylus was able to send values < 0.10 when it was touching screen with only it’s own weight but maximum pressure I was able to achieve was around 0.40. While lowest result for fingers were about 0.15 when I was using my nail up to 1.2 using whole fingertip.
Knowing that this will NEVER be as accurate as actual S-Pen it is still promising and worth try in my opinion.
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It seems my tablet is similar to a nexus 7 while mine doesn’t work so well. Can you point out more specifically how I may modify the programme to make it work?
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If you have android programming experience it should be fairly easy to add threshold settings and then recalculate pressure in CanvasView class touch & motion events.
For starters uncomment
Log.i("XorgTablet", ...loggers and watch pressure output with logcat.
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Sorry, how do I compile and get the apk file? The SDK says “Your project
contains error(s)…”
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I added a setting in my branch that lets you configure a minimum pressure threshold for clicking in order to emulate the hovering of a digitized stylus when you’re using a capacitive stylus.
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ActionBar Button or Tab to switch from press and release. I think I’ll take a look at it.
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New protocol and driver, please re-open if this bug still exists.