Implementing shadow exclude regions list

[ivanmilov]

My attempt to implement my own change request (#494 (comment))

[yshui]

This doesn't seem to be relevant to this PR?

[ivanmilov]

Sorry, my bad. I had had to create another branch for this PR. I thought it is abandoned and pushed mechanism informing me about new commits.
Anyway, what do you think about the changes? Worth merging? Without last commit of course :)

[yshui]

I think for what shadow-exclude-reg is intended for, the more ideal replacement option would be shadow-exclude-window, which takes a list of rules, and prevent shadow from being rendered on top of them.

shadow-exclude-reg requires the user to manual get the rectangles, and doesn't allow the windows to move.

[ivanmilov]

the more ideal replacement option would be shadow-exclude-window

shadow-exclude-window is not implemented, isn't it?

shadow-exclude-reg requires the user to manual get the rectangles, and doesn't allow the windows to move.

I do not get it. My point was to set an array of static regions free from shadow. For example to not shadowing bars.

[ivanmilov]

Not relevant anymore