[Bug 6971] Mouse "escapes" window or is confined to an area in the full screen program

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=6971





--- Comment #63 from Joe McKort <mortsmota at fastmail.fm>  2008-03-10 14:38:38 ---
Created an attachment (id=11303)
 --> (http://bugs.winehq.org/attachment.cgi?id=11303)
Hack to force warping when mouse leaves box

i suffered from this bug using gothic 3, i.e. i couldn't turn around freely
because the mouse stops when it hits the borders.
i started out with the "Hack to force mouse warping", but using the main menu
is a pain this way ;-) (probably same problem as Roman Mamedov described
commenting his patch)
but i don't want to press a button to look around, so none of those patches
worked for me, therefore i started experimenting with the mouse.c until i came
up with a solution that's unideal, but might at least work for a couple of
games.
what it does is warping the mouse in case it leaves a box that is 2 pixels (can
of course be changed) smaller than the screen on each side, using
hook->pt.{x/y} to get the current mouse position and This->win_center{X/Y} for
calculating the screen size.
the latter one could probably be replaced by adding a new variable, which
stores the screen size, so it won't have to be computed anew.

the main two problems about this solution are:
the mouse will also warp, when in a menu leaving the box
and
when playing in window mode the mouse might leave the window before the hack
"realizes" this, that means the window manager regains control over the mouse
handling before the mouse is warped back to the center, f.e. if you move the
mouse too fast.

but i hope it will help someone!


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