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Alexander Roalter wrote: | Since upgrading to OpenSUSE 11, I got the following problem with | inkscape, both 0.46 and SVN: | | If I set the extended input preferences of the Stylus to 'Disabled', I | can use the pen as a mouse, draw etc. and move things around, but I | don't get any pressure sensibility. | | It I set the extended input preferences to 'Screen' or 'Window' | (preferrably to 'Screen'), I get pressure sensibility, but I cannot | select any object by simply clicking on it. I have to tap multiple times | on it in order for it to have the normal handles appear, and only then I | can move the object around. If I tap too often, I get the node | selection, which isn't what I want (at that moment). | | Any Ideas on why? Is this something the X input does differently when | XInput is set to screen so Inkscape does not register a press (or | doesn't register it in the right way?) or is the code in inkscape for | disabled and screen mode that much different so that selecting with | screen mode won't work as expected? | Since nobody seems to care, I took some investigation and found out the following:
If I patch inkscape in order to produce output in sp_select_context_root_handler and sp_select_context_item_handler and put a printf at case GDK_BUTTON_PRESS, GDK_ENTER_NOTIFY, GDK_LEAVE_NOTIFY on select_context_item_handler as well as GDK_BUTTON_PRESS and GDK_BUTTON_RELEASE at select_context_root (the latter two I'll be naming GDK_BUTTON_PRESS/RELEASE____root from now on, I get the following behavior:
if I draw a square with the rectangle tool and switch to select (F1), I can move the mouse over the rectangle and I get GDK_ENTER_NOTIFY If I move the mouse out of the rectangle, I get GDK_LEAVE_NOTIFY
If I press somewhere (outside of the rectanlge), I get GDK_BUTTON_PRESS____root, and when I release, I get GDK_BUTTON_RELEASE____root. This is also valid for the tablet.
If I press somewhere *in* the rectangle, with the mouse I get GDK_LEAVE_NOTIFY GDK_ENTER_NOTIFY GDK_BUTTON_PRESS
and if I release, I get GDK_BUTTON_RELEASE___root GDK_BUTTON_RELEASE___root (that's right, I get it twice), and the rectangle is selected.
If I do the same with the tablet, I get GDK_LEAVE_NOTIFY GDK_BUTTON_PRESS____root
and upon release GDK_BUTTON_RELEASE____root GDK_ENTER_NOTIFY
and nothing is selected at all.
Maybe someone with a bit more insight could help me out here. It might have to do something with GDK and/or its implementation of XInput, but this would not explain the different behavior, I mean pressing outside of the rectangle generates PRESS and RELEASE as expected, but if there's an object under it, why is there a leave notify *not* followed by a enter notify just as it is the case with the mouse?
- -- Cheers, Alex