[xmonad] darcs patch: Decoration: fix mouse dragging jump ...

[Brandon S. Allbery KF8NH]

On Feb 9, 2008, at 3:38 , Andrea Rossato wrote:

> can you please check if the reasoning is fine?

Works for me, with a note and a nit:

> 2. the absolute coordinates of the pointer events are:
>    (dx + px), (dy + py)

aka x_root and y_root in the ButtonEvent, if this saves you anything.

> 3. the distance of the pointer event from the decorated window's
>    origin (wx,wy) is:
>    (dx + px) - wx, (dy + py) -wy

I'd call this "offset", because "distance" is the length of the  
vector from (x_root,y_root) to (wx,wy).  :)

-- 
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university    KF8NH