On Thu, Oct 20, 2011 at 8:03 AM, Chris Bagwell <ch...@cnpbagwell.com> wrote: > On Wed, Oct 19, 2011 at 9:10 PM, Chris Bagwell <ch...@cnpbagwell.com> wrote: >> On Wed, Oct 19, 2011 at 7:01 PM, Ping Cheng <pingli...@gmail.com> wrote: >>> So, we can not rely on pressure to set button 1 click for touch >>> screen devices. >> >> This code shouldn't be needed... or its a bug elsewhere if it is needed. >> >> wcmSingleFingerPress() does the below logic but a little better in >> that it tries not to do a button press during 2 finger gestures >> (although it has a few known bugs). >> >> My touchscreen is doing the left click correctly without looking at >> pressure. Maybe your seeing something related to pen proximity >> masking that I didn't consider since my hw doesn't have pen support.
I'll test it again on my system. > Since your working in this area, let me repost a related open issue. > Maybe you'll have time to work on it. > > If you use MyPaint application with the touchscreen you've got > (without pressure that is), it won't work. > > The reason is because that application ignores left click and instead > relies only on pressure values. Or at the least, its setting ink to > fully transparent when pressure is reported as zero. Since MyPaint > works with mice, I think it must only do this when a pressure axis is > reported. > > So I think we need some code in our init phase that only declares > pressure axis when maxZ != 0. This requires an interface change. We will need to only report 2 valuators, x and y. That might be fine with newer X server and Gtk versions. But, I guess we'll need to deal with backward compatibility issue. I am not sure how we want to handle it. . Ping ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Linuxwacom-devel mailing list Linuxwacom-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
